1 /* Source code parsing and tree node generation for the GNU compiler
2 for the Java(TM) language.
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
4 Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com)
6 This file is part of GNU CC.
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA.
23 Java and all Java-based marks are trademarks or registered trademarks
24 of Sun Microsystems, Inc. in the United States and other countries.
25 The Free Software Foundation is independent of Sun Microsystems, Inc. */
27 /* This file parses java source code and issues a tree node image
28 suitable for code generation (byte code and targeted CPU assembly
31 The grammar conforms to the Java grammar described in "The Java(TM)
32 Language Specification. J. Gosling, B. Joy, G. Steele. Addison Wesley
33 1996, ISBN 0-201-63451-1"
35 The following modifications were brought to the original grammar:
37 method_body: added the rule '| block SC_TK'
38 static_initializer: added the rule 'static block SC_TK'.
40 Note: All the extra rules described above should go away when the
41 empty_statement rule will work.
43 statement_nsi: 'nsi' should be read no_short_if.
45 Some rules have been modified to support JDK1.1 inner classes
46 definitions and other extensions. */
57 #include "java-tree.h"
70 #define DIR_SEPARATOR '/'
73 /* Local function prototypes */
74 static char *java_accstring_lookup PARAMS ((int));
75 static void classitf_redefinition_error PARAMS ((const char *,tree, tree, tree));
76 static void variable_redefinition_error PARAMS ((tree, tree, tree, int));
77 static tree create_class PARAMS ((int, tree, tree, tree));
78 static tree create_interface PARAMS ((int, tree, tree));
79 static void end_class_declaration PARAMS ((int));
80 static tree find_field PARAMS ((tree, tree));
81 static tree lookup_field_wrapper PARAMS ((tree, tree));
82 static int duplicate_declaration_error_p PARAMS ((tree, tree, tree));
83 static void register_fields PARAMS ((int, tree, tree));
84 static tree parser_qualified_classname PARAMS ((tree));
85 static int parser_check_super PARAMS ((tree, tree, tree));
86 static int parser_check_super_interface PARAMS ((tree, tree, tree));
87 static void check_modifiers_consistency PARAMS ((int));
88 static tree lookup_cl PARAMS ((tree));
89 static tree lookup_java_method2 PARAMS ((tree, tree, int));
90 static tree method_header PARAMS ((int, tree, tree, tree));
91 static void fix_method_argument_names PARAMS ((tree ,tree));
92 static tree method_declarator PARAMS ((tree, tree));
93 static void parse_warning_context PARAMS ((tree cl, const char *msg, ...))
95 static void issue_warning_error_from_context PARAMS ((tree, const char *msg, va_list))
96 ATTRIBUTE_PRINTF (2, 0);
97 static void parse_ctor_invocation_error PARAMS ((void));
98 static tree parse_jdk1_1_error PARAMS ((const char *));
99 static void complete_class_report_errors PARAMS ((jdep *));
100 static int process_imports PARAMS ((void));
101 static void read_import_dir PARAMS ((tree));
102 static int find_in_imports_on_demand PARAMS ((tree));
103 static void find_in_imports PARAMS ((tree));
104 static void check_static_final_variable_assignment_flag PARAMS ((tree));
105 static void reset_static_final_variable_assignment_flag PARAMS ((tree));
106 static void check_final_variable_local_assignment_flag PARAMS ((tree, tree));
107 static void reset_final_variable_local_assignment_flag PARAMS ((tree));
108 static int check_final_variable_indirect_assignment PARAMS ((tree));
109 static void check_final_variable_global_assignment_flag PARAMS ((tree));
110 static void check_inner_class_access PARAMS ((tree, tree, tree));
111 static int check_pkg_class_access PARAMS ((tree, tree));
112 static void register_package PARAMS ((tree));
113 static tree resolve_package PARAMS ((tree, tree *));
114 static tree lookup_package_type PARAMS ((const char *, int));
115 static tree resolve_class PARAMS ((tree, tree, tree, tree));
116 static void declare_local_variables PARAMS ((int, tree, tree));
117 static void source_start_java_method PARAMS ((tree));
118 static void source_end_java_method PARAMS ((void));
119 static tree find_name_in_single_imports PARAMS ((tree));
120 static void check_abstract_method_header PARAMS ((tree));
121 static tree lookup_java_interface_method2 PARAMS ((tree, tree));
122 static tree resolve_expression_name PARAMS ((tree, tree *));
123 static tree maybe_create_class_interface_decl PARAMS ((tree, tree, tree, tree));
124 static int check_class_interface_creation PARAMS ((int, int, tree,
126 static tree patch_method_invocation PARAMS ((tree, tree, tree, int,
128 static int breakdown_qualified PARAMS ((tree *, tree *, tree));
129 static int in_same_package PARAMS ((tree, tree));
130 static tree resolve_and_layout PARAMS ((tree, tree));
131 static tree qualify_and_find PARAMS ((tree, tree, tree));
132 static tree resolve_no_layout PARAMS ((tree, tree));
133 static int invocation_mode PARAMS ((tree, int));
134 static tree find_applicable_accessible_methods_list PARAMS ((int, tree,
136 static void search_applicable_methods_list PARAMS ((int, tree, tree, tree,
138 static tree find_most_specific_methods_list PARAMS ((tree));
139 static int argument_types_convertible PARAMS ((tree, tree));
140 static tree patch_invoke PARAMS ((tree, tree, tree));
141 static int maybe_use_access_method PARAMS ((int, tree *, tree *));
142 static tree lookup_method_invoke PARAMS ((int, tree, tree, tree, tree));
143 static tree register_incomplete_type PARAMS ((int, tree, tree, tree));
144 static tree check_inner_circular_reference PARAMS ((tree, tree));
145 static tree check_circular_reference PARAMS ((tree));
146 static tree obtain_incomplete_type PARAMS ((tree));
147 static tree java_complete_lhs PARAMS ((tree));
148 static tree java_complete_tree PARAMS ((tree));
149 static tree maybe_generate_pre_expand_clinit PARAMS ((tree));
150 static int analyze_clinit_body PARAMS ((tree));
151 static int maybe_yank_clinit PARAMS ((tree));
152 static void start_complete_expand_method PARAMS ((tree));
153 static void java_complete_expand_method PARAMS ((tree));
154 static void java_expand_method_bodies PARAMS ((tree));
155 static int unresolved_type_p PARAMS ((tree, tree *));
156 static void create_jdep_list PARAMS ((struct parser_ctxt *));
157 static tree build_expr_block PARAMS ((tree, tree));
158 static tree enter_block PARAMS ((void));
159 static tree exit_block PARAMS ((void));
160 static tree lookup_name_in_blocks PARAMS ((tree));
161 static void maybe_absorb_scoping_blocks PARAMS ((void));
162 static tree build_method_invocation PARAMS ((tree, tree));
163 static tree build_new_invocation PARAMS ((tree, tree));
164 static tree build_assignment PARAMS ((int, int, tree, tree));
165 static tree build_binop PARAMS ((enum tree_code, int, tree, tree));
166 static int check_final_assignment PARAMS ((tree ,tree));
167 static tree patch_assignment PARAMS ((tree, tree, tree ));
168 static tree patch_binop PARAMS ((tree, tree, tree));
169 static tree build_unaryop PARAMS ((int, int, tree));
170 static tree build_incdec PARAMS ((int, int, tree, int));
171 static tree patch_unaryop PARAMS ((tree, tree));
172 static tree build_cast PARAMS ((int, tree, tree));
173 static tree build_null_of_type PARAMS ((tree));
174 static tree patch_cast PARAMS ((tree, tree));
175 static int valid_ref_assignconv_cast_p PARAMS ((tree, tree, int));
176 static int valid_builtin_assignconv_identity_widening_p PARAMS ((tree, tree));
177 static int valid_cast_to_p PARAMS ((tree, tree));
178 static int valid_method_invocation_conversion_p PARAMS ((tree, tree));
179 static tree try_builtin_assignconv PARAMS ((tree, tree, tree));
180 static tree try_reference_assignconv PARAMS ((tree, tree));
181 static tree build_unresolved_array_type PARAMS ((tree));
182 static tree build_array_from_name PARAMS ((tree, tree, tree, tree *));
183 static tree build_array_ref PARAMS ((int, tree, tree));
184 static tree patch_array_ref PARAMS ((tree));
185 static tree make_qualified_name PARAMS ((tree, tree, int));
186 static tree merge_qualified_name PARAMS ((tree, tree));
187 static tree make_qualified_primary PARAMS ((tree, tree, int));
188 static int resolve_qualified_expression_name PARAMS ((tree, tree *,
190 static void qualify_ambiguous_name PARAMS ((tree));
191 static tree resolve_field_access PARAMS ((tree, tree *, tree *));
192 static tree build_newarray_node PARAMS ((tree, tree, int));
193 static tree patch_newarray PARAMS ((tree));
194 static tree resolve_type_during_patch PARAMS ((tree));
195 static tree build_this PARAMS ((int));
196 static tree build_wfl_wrap PARAMS ((tree, int));
197 static tree build_return PARAMS ((int, tree));
198 static tree patch_return PARAMS ((tree));
199 static tree maybe_access_field PARAMS ((tree, tree, tree));
200 static int complete_function_arguments PARAMS ((tree));
201 static int check_for_static_method_reference PARAMS ((tree, tree, tree,
203 static int not_accessible_p PARAMS ((tree, tree, tree, int));
204 static void check_deprecation PARAMS ((tree, tree));
205 static int class_in_current_package PARAMS ((tree));
206 static tree build_if_else_statement PARAMS ((int, tree, tree, tree));
207 static tree patch_if_else_statement PARAMS ((tree));
208 static tree add_stmt_to_compound PARAMS ((tree, tree, tree));
209 static tree add_stmt_to_block PARAMS ((tree, tree, tree));
210 static tree patch_exit_expr PARAMS ((tree));
211 static tree build_labeled_block PARAMS ((int, tree));
212 static tree finish_labeled_statement PARAMS ((tree, tree));
213 static tree build_bc_statement PARAMS ((int, int, tree));
214 static tree patch_bc_statement PARAMS ((tree));
215 static tree patch_loop_statement PARAMS ((tree));
216 static tree build_new_loop PARAMS ((tree));
217 static tree build_loop_body PARAMS ((int, tree, int));
218 static tree finish_loop_body PARAMS ((int, tree, tree, int));
219 static tree build_debugable_stmt PARAMS ((int, tree));
220 static tree finish_for_loop PARAMS ((int, tree, tree, tree));
221 static tree patch_switch_statement PARAMS ((tree));
222 static tree string_constant_concatenation PARAMS ((tree, tree));
223 static tree build_string_concatenation PARAMS ((tree, tree));
224 static tree patch_string_cst PARAMS ((tree));
225 static tree patch_string PARAMS ((tree));
226 static tree encapsulate_with_try_catch PARAMS ((int, tree, tree, tree));
227 static tree build_try_statement PARAMS ((int, tree, tree));
228 static tree build_try_finally_statement PARAMS ((int, tree, tree));
229 static tree patch_try_statement PARAMS ((tree));
230 static tree patch_synchronized_statement PARAMS ((tree, tree));
231 static tree patch_throw_statement PARAMS ((tree, tree));
232 static void check_thrown_exceptions PARAMS ((int, tree));
233 static int check_thrown_exceptions_do PARAMS ((tree));
234 static void purge_unchecked_exceptions PARAMS ((tree));
235 static bool ctors_unchecked_throws_clause_p PARAMS ((tree));
236 static void check_throws_clauses PARAMS ((tree, tree, tree));
237 static void finish_method_declaration PARAMS ((tree));
238 static tree build_super_invocation PARAMS ((tree));
239 static int verify_constructor_circularity PARAMS ((tree, tree));
240 static char *constructor_circularity_msg PARAMS ((tree, tree));
241 static tree build_this_super_qualified_invocation PARAMS ((int, tree, tree,
243 static const char *get_printable_method_name PARAMS ((tree));
244 static tree patch_conditional_expr PARAMS ((tree, tree, tree));
245 static tree generate_finit PARAMS ((tree));
246 static tree generate_instinit PARAMS ((tree));
247 static tree build_instinit_invocation PARAMS ((tree));
248 static void fix_constructors PARAMS ((tree));
249 static tree build_alias_initializer_parameter_list PARAMS ((int, tree,
251 static void craft_constructor PARAMS ((tree, tree));
252 static int verify_constructor_super PARAMS ((tree));
253 static tree create_artificial_method PARAMS ((tree, int, tree, tree, tree));
254 static void start_artificial_method_body PARAMS ((tree));
255 static void end_artificial_method_body PARAMS ((tree));
256 static int check_method_redefinition PARAMS ((tree, tree));
257 static int check_method_types_complete PARAMS ((tree));
258 static void java_check_regular_methods PARAMS ((tree));
259 static void java_check_abstract_methods PARAMS ((tree));
260 static tree maybe_build_primttype_type_ref PARAMS ((tree, tree));
261 static void unreachable_stmt_error PARAMS ((tree));
262 static tree find_expr_with_wfl PARAMS ((tree));
263 static void missing_return_error PARAMS ((tree));
264 static tree build_new_array_init PARAMS ((int, tree));
265 static tree patch_new_array_init PARAMS ((tree, tree));
266 static tree maybe_build_array_element_wfl PARAMS ((tree));
267 static int array_constructor_check_entry PARAMS ((tree, tree));
268 static const char *purify_type_name PARAMS ((const char *));
269 static tree fold_constant_for_init PARAMS ((tree, tree));
270 static tree strip_out_static_field_access_decl PARAMS ((tree));
271 static jdeplist *reverse_jdep_list PARAMS ((struct parser_ctxt *));
272 static void static_ref_err PARAMS ((tree, tree, tree));
273 static void parser_add_interface PARAMS ((tree, tree, tree));
274 static void add_superinterfaces PARAMS ((tree, tree));
275 static tree jdep_resolve_class PARAMS ((jdep *));
276 static int note_possible_classname PARAMS ((const char *, int));
277 static void java_complete_expand_classes PARAMS ((void));
278 static void java_complete_expand_class PARAMS ((tree));
279 static void java_complete_expand_methods PARAMS ((tree));
280 static tree cut_identifier_in_qualified PARAMS ((tree));
281 static tree java_stabilize_reference PARAMS ((tree));
282 static tree do_unary_numeric_promotion PARAMS ((tree));
283 static char * operator_string PARAMS ((tree));
284 static tree do_merge_string_cste PARAMS ((tree, const char *, int, int));
285 static tree merge_string_cste PARAMS ((tree, tree, int));
286 static tree java_refold PARAMS ((tree));
287 static int java_decl_equiv PARAMS ((tree, tree));
288 static int binop_compound_p PARAMS ((enum tree_code));
289 static tree search_loop PARAMS ((tree));
290 static int labeled_block_contains_loop_p PARAMS ((tree, tree));
291 static int check_abstract_method_definitions PARAMS ((int, tree, tree));
292 static void java_check_abstract_method_definitions PARAMS ((tree));
293 static void java_debug_context_do PARAMS ((int));
294 static void java_parser_context_push_initialized_field PARAMS ((void));
295 static void java_parser_context_pop_initialized_field PARAMS ((void));
296 static tree reorder_static_initialized PARAMS ((tree));
297 static void java_parser_context_suspend PARAMS ((void));
298 static void java_parser_context_resume PARAMS ((void));
299 static int pop_current_osb PARAMS ((struct parser_ctxt *));
301 /* JDK 1.1 work. FIXME */
303 static tree maybe_make_nested_class_name PARAMS ((tree));
304 static void make_nested_class_name PARAMS ((tree));
305 static void set_nested_class_simple_name_value PARAMS ((tree, int));
306 static void link_nested_class_to_enclosing PARAMS ((void));
307 static tree resolve_inner_class PARAMS ((struct hash_table *, tree, tree *,
309 static tree find_as_inner_class PARAMS ((tree, tree, tree));
310 static tree find_as_inner_class_do PARAMS ((tree, tree));
311 static int check_inner_class_redefinition PARAMS ((tree, tree));
313 static tree build_thisn_assign PARAMS ((void));
314 static tree build_current_thisn PARAMS ((tree));
315 static tree build_access_to_thisn PARAMS ((tree, tree, int));
316 static tree maybe_build_thisn_access_method PARAMS ((tree));
318 static tree build_outer_field_access PARAMS ((tree, tree));
319 static tree build_outer_field_access_methods PARAMS ((tree));
320 static tree build_outer_field_access_expr PARAMS ((int, tree, tree,
322 static tree build_outer_method_access_method PARAMS ((tree));
323 static tree build_new_access_id PARAMS ((void));
324 static tree build_outer_field_access_method PARAMS ((tree, tree, tree,
327 static int outer_field_access_p PARAMS ((tree, tree));
328 static int outer_field_expanded_access_p PARAMS ((tree, tree *,
330 static tree outer_field_access_fix PARAMS ((tree, tree, tree));
331 static tree build_incomplete_class_ref PARAMS ((int, tree));
332 static tree patch_incomplete_class_ref PARAMS ((tree));
333 static tree create_anonymous_class PARAMS ((int, tree));
334 static void patch_anonymous_class PARAMS ((tree, tree, tree));
335 static void add_inner_class_fields PARAMS ((tree, tree));
337 static tree build_dot_class_method PARAMS ((tree));
338 static tree build_dot_class_method_invocation PARAMS ((tree));
339 static void create_new_parser_context PARAMS ((int));
340 static void mark_parser_ctxt PARAMS ((void *));
341 static tree maybe_build_class_init_for_field PARAMS ((tree, tree));
343 static bool attach_init_test_initialization_flags PARAMS ((struct hash_entry *,
345 static bool adjust_init_test_initialization PARAMS ((struct hash_entry *,
347 static bool emit_test_initialization PARAMS ((struct hash_entry *, PTR));
349 /* Number of error found so far. */
350 int java_error_count;
351 /* Number of warning found so far. */
352 int java_warning_count;
353 /* Tell when not to fold, when doing xrefs */
355 /* Cyclic inheritance report, as it can be set by layout_class */
356 const char *cyclic_inheritance_report;
358 /* The current parser context */
359 struct parser_ctxt *ctxp;
361 /* List of things that were analyzed for which code will be generated */
362 struct parser_ctxt *ctxp_for_generation = NULL;
364 /* binop_lookup maps token to tree_code. It is used where binary
365 operations are involved and required by the parser. RDIV_EXPR
366 covers both integral/floating point division. The code is changed
367 once the type of both operator is worked out. */
369 static enum tree_code binop_lookup[19] =
371 PLUS_EXPR, MINUS_EXPR, MULT_EXPR, RDIV_EXPR, TRUNC_MOD_EXPR,
372 LSHIFT_EXPR, RSHIFT_EXPR, URSHIFT_EXPR,
373 BIT_AND_EXPR, BIT_XOR_EXPR, BIT_IOR_EXPR,
374 TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR,
375 EQ_EXPR, NE_EXPR, GT_EXPR, GE_EXPR, LT_EXPR, LE_EXPR,
377 #define BINOP_LOOKUP(VALUE) \
378 binop_lookup [((VALUE) - PLUS_TK) % ARRAY_SIZE (binop_lookup)]
380 /* This is the end index for binary operators that can also be used
381 in compound assignements. */
382 #define BINOP_COMPOUND_CANDIDATES 11
384 /* The "$L" identifier we use to create labels. */
385 static tree label_id = NULL_TREE;
387 /* The "StringBuffer" identifier used for the String `+' operator. */
388 static tree wfl_string_buffer = NULL_TREE;
390 /* The "append" identifier used for String `+' operator. */
391 static tree wfl_append = NULL_TREE;
393 /* The "toString" identifier used for String `+' operator. */
394 static tree wfl_to_string = NULL_TREE;
396 /* The "java.lang" import qualified name. */
397 static tree java_lang_id = NULL_TREE;
399 /* The generated `inst$' identifier used for generated enclosing
400 instance/field access functions. */
401 static tree inst_id = NULL_TREE;
403 /* The "java.lang.Cloneable" qualified name. */
404 static tree java_lang_cloneable = NULL_TREE;
406 /* The "java.io.Serializable" qualified name. */
407 static tree java_io_serializable = NULL_TREE;
409 /* Context and flag for static blocks */
410 static tree current_static_block = NULL_TREE;
412 /* The generated `write_parm_value$' identifier. */
415 /* The list of all packages we've seen so far */
416 static tree package_list = NULL_TREE;
418 /* Hold THIS for the scope of the current public method decl. */
419 static tree current_this;
421 /* Hold a list of catch clauses list. The first element of this list is
422 the list of the catch clauses of the currently analysed try block. */
423 static tree currently_caught_type_list;
425 static tree src_parse_roots[1] = { NULL_TREE };
427 /* All classes seen from source code */
428 #define gclass_list src_parse_roots[0]
430 /* Check modifiers. If one doesn't fit, retrieve it in its declaration
431 line and point it out. */
432 /* Should point out the one that don't fit. ASCII/unicode, going
435 #define check_modifiers(__message, __value, __mask) do { \
436 if ((__value) & ~(__mask)) \
438 int i, remainder = (__value) & ~(__mask); \
439 for (i = 0; i <= 10; i++) \
440 if ((1 << i) & remainder) \
441 parse_error_context (ctxp->modifier_ctx [i], (__message), \
442 java_accstring_lookup (1 << i)); \
464 /* Things defined here have to match the order of what's in the
465 binop_lookup table. */
467 %token PLUS_TK MINUS_TK MULT_TK DIV_TK REM_TK
468 %token LS_TK SRS_TK ZRS_TK
469 %token AND_TK XOR_TK OR_TK
470 %token BOOL_AND_TK BOOL_OR_TK
471 %token EQ_TK NEQ_TK GT_TK GTE_TK LT_TK LTE_TK
473 /* This maps to the same binop_lookup entry than the token above */
475 %token PLUS_ASSIGN_TK MINUS_ASSIGN_TK MULT_ASSIGN_TK DIV_ASSIGN_TK
477 %token LS_ASSIGN_TK SRS_ASSIGN_TK ZRS_ASSIGN_TK
478 %token AND_ASSIGN_TK XOR_ASSIGN_TK OR_ASSIGN_TK
481 /* Modifier TOKEN have to be kept in this order. Don't scramble it */
483 %token PUBLIC_TK PRIVATE_TK PROTECTED_TK
484 %token STATIC_TK FINAL_TK SYNCHRONIZED_TK
485 %token VOLATILE_TK TRANSIENT_TK NATIVE_TK
486 %token PAD_TK ABSTRACT_TK MODIFIER_TK
489 /* Keep those two in order, too */
490 %token DECR_TK INCR_TK
492 /* From now one, things can be in any order */
494 %token DEFAULT_TK IF_TK THROW_TK
495 %token BOOLEAN_TK DO_TK IMPLEMENTS_TK
496 %token THROWS_TK BREAK_TK IMPORT_TK
497 %token ELSE_TK INSTANCEOF_TK RETURN_TK
498 %token VOID_TK CATCH_TK INTERFACE_TK
499 %token CASE_TK EXTENDS_TK FINALLY_TK
500 %token SUPER_TK WHILE_TK CLASS_TK
501 %token SWITCH_TK CONST_TK TRY_TK
502 %token FOR_TK NEW_TK CONTINUE_TK
503 %token GOTO_TK PACKAGE_TK THIS_TK
505 %token BYTE_TK SHORT_TK INT_TK LONG_TK
506 %token CHAR_TK INTEGRAL_TK
508 %token FLOAT_TK DOUBLE_TK FP_TK
512 %token REL_QM_TK REL_CL_TK NOT_TK NEG_TK
514 %token ASSIGN_ANY_TK ASSIGN_TK
515 %token OP_TK CP_TK OCB_TK CCB_TK OSB_TK CSB_TK SC_TK C_TK DOT_TK
517 %token STRING_LIT_TK CHAR_LIT_TK INT_LIT_TK FP_LIT_TK
518 %token TRUE_TK FALSE_TK BOOL_LIT_TK NULL_TK
520 %type <value> modifiers MODIFIER_TK final synchronized
522 %type <node> super ID_TK identifier
523 %type <node> name simple_name qualified_name
524 %type <node> type_declaration compilation_unit
525 field_declaration method_declaration extends_interfaces
526 interfaces interface_type_list
527 class_member_declaration
528 import_declarations package_declaration
529 type_declarations interface_body
530 interface_member_declaration constant_declaration
531 interface_member_declarations interface_type
532 abstract_method_declaration interface_type_list
533 %type <node> class_body_declaration class_member_declaration
534 static_initializer constructor_declaration block
535 %type <node> class_body_declarations constructor_header
536 %type <node> class_or_interface_type class_type class_type_list
537 constructor_declarator explicit_constructor_invocation
538 %type <node> dim_expr dim_exprs this_or_super throws
540 %type <node> variable_declarator_id variable_declarator
541 variable_declarators variable_initializer
542 variable_initializers constructor_body
545 %type <node> class_body block_end constructor_block_end
546 %type <node> statement statement_without_trailing_substatement
547 labeled_statement if_then_statement label_decl
548 if_then_else_statement while_statement for_statement
549 statement_nsi labeled_statement_nsi do_statement
550 if_then_else_statement_nsi while_statement_nsi
551 for_statement_nsi statement_expression_list for_init
552 for_update statement_expression expression_statement
553 primary_no_new_array expression primary
554 array_creation_expression array_type
555 class_instance_creation_expression field_access
556 method_invocation array_access something_dot_new
557 argument_list postfix_expression while_expression
558 post_increment_expression post_decrement_expression
559 unary_expression_not_plus_minus unary_expression
560 pre_increment_expression pre_decrement_expression
561 unary_expression_not_plus_minus cast_expression
562 multiplicative_expression additive_expression
563 shift_expression relational_expression
564 equality_expression and_expression
565 exclusive_or_expression inclusive_or_expression
566 conditional_and_expression conditional_or_expression
567 conditional_expression assignment_expression
568 left_hand_side assignment for_header for_begin
569 constant_expression do_statement_begin empty_statement
570 switch_statement synchronized_statement throw_statement
571 try_statement switch_expression switch_block
572 catches catch_clause catch_clause_parameter finally
573 anonymous_class_creation
574 %type <node> return_statement break_statement continue_statement
576 %type <operator> ASSIGN_TK MULT_ASSIGN_TK DIV_ASSIGN_TK
577 %type <operator> REM_ASSIGN_TK PLUS_ASSIGN_TK MINUS_ASSIGN_TK
578 %type <operator> LS_ASSIGN_TK SRS_ASSIGN_TK ZRS_ASSIGN_TK
579 %type <operator> AND_ASSIGN_TK XOR_ASSIGN_TK OR_ASSIGN_TK
580 %type <operator> ASSIGN_ANY_TK assignment_operator
581 %token <operator> EQ_TK GTE_TK ZRS_TK SRS_TK GT_TK LTE_TK LS_TK
582 %token <operator> BOOL_AND_TK AND_TK BOOL_OR_TK OR_TK INCR_TK PLUS_TK
583 %token <operator> DECR_TK MINUS_TK MULT_TK DIV_TK XOR_TK REM_TK NEQ_TK
584 %token <operator> NEG_TK REL_QM_TK REL_CL_TK NOT_TK LT_TK OCB_TK CCB_TK
585 %token <operator> OP_TK OSB_TK DOT_TK THROW_TK INSTANCEOF_TK
586 %type <operator> THIS_TK SUPER_TK RETURN_TK BREAK_TK CONTINUE_TK
587 %type <operator> CASE_TK DEFAULT_TK TRY_TK CATCH_TK SYNCHRONIZED_TK
588 %type <operator> NEW_TK
590 %type <node> method_body
592 %type <node> literal INT_LIT_TK FP_LIT_TK BOOL_LIT_TK CHAR_LIT_TK
593 STRING_LIT_TK NULL_TK VOID_TK
595 %type <node> IF_TK WHILE_TK FOR_TK
597 %type <node> formal_parameter_list formal_parameter
598 method_declarator method_header
600 %type <node> primitive_type reference_type type
601 BOOLEAN_TK INTEGRAL_TK FP_TK
603 /* Added or modified JDK 1.1 rule types */
604 %type <node> type_literals
607 /* 19.2 Production from 2.3: The Syntactic Grammar */
610 /* Register static variables with the garbage
612 ggc_add_tree_root (&label_id, 1);
613 ggc_add_tree_root (&wfl_string_buffer, 1);
614 ggc_add_tree_root (&wfl_append, 1);
615 ggc_add_tree_root (&wfl_to_string, 1);
616 ggc_add_tree_root (&java_lang_id, 1);
617 ggc_add_tree_root (&inst_id, 1);
618 ggc_add_tree_root (&java_lang_cloneable, 1);
619 ggc_add_tree_root (&java_io_serializable, 1);
620 ggc_add_tree_root (¤t_static_block, 1);
621 ggc_add_tree_root (&wpv_id, 1);
622 ggc_add_tree_root (&package_list, 1);
623 ggc_add_tree_root (¤t_this, 1);
624 ggc_add_tree_root (¤tly_caught_type_list, 1);
625 ggc_add_root (&ctxp, 1,
626 sizeof (struct parser_ctxt *),
628 ggc_add_root (&ctxp_for_generation, 1,
629 sizeof (struct parser_ctxt *),
636 /* 19.3 Productions from 3: Lexical structure */
646 /* 19.4 Productions from 4: Types, Values and Variables */
659 class_or_interface_type
663 class_or_interface_type:
668 class_or_interface_type /* Default rule */
672 class_or_interface_type
678 int osb = pop_current_osb (ctxp);
679 tree t = build_java_array_type (($1), -1);
681 t = build_unresolved_array_type (t);
686 int osb = pop_current_osb (ctxp);
689 t = build_unresolved_array_type (t);
694 /* 19.5 Productions from 6: Names */
696 simple_name /* Default rule */
697 | qualified_name /* Default rule */
701 identifier /* Default rule */
705 name DOT_TK identifier
706 { $$ = make_qualified_name ($1, $3, $2.location); }
713 /* 19.6: Production from 7: Packages */
716 | package_declaration
717 | import_declarations
719 | package_declaration import_declarations
720 | package_declaration type_declarations
721 | import_declarations type_declarations
722 | package_declaration import_declarations type_declarations
730 | import_declarations import_declaration
738 | type_declarations type_declaration
742 PACKAGE_TK name SC_TK
744 ctxp->package = EXPR_WFL_NODE ($2);
745 register_package (ctxp->package);
748 {yyerror ("Missing name"); RECOVER;}
749 | PACKAGE_TK name error
750 {yyerror ("';' expected"); RECOVER;}
754 single_type_import_declaration
755 | type_import_on_demand_declaration
758 single_type_import_declaration:
761 tree name = EXPR_WFL_NODE ($2), last_name;
762 int i = IDENTIFIER_LENGTH (name)-1;
763 const char *last = &IDENTIFIER_POINTER (name)[i];
764 while (last != IDENTIFIER_POINTER (name))
770 last_name = get_identifier (++last);
771 if (IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (last_name))
773 tree err = find_name_in_single_imports (last_name);
774 if (err && err != name)
776 ($2, "Ambiguous class: `%s' and `%s'",
777 IDENTIFIER_POINTER (name),
778 IDENTIFIER_POINTER (err));
780 REGISTER_IMPORT ($2, last_name);
783 REGISTER_IMPORT ($2, last_name);
786 {yyerror ("Missing name"); RECOVER;}
787 | IMPORT_TK name error
788 {yyerror ("';' expected"); RECOVER;}
791 type_import_on_demand_declaration:
792 IMPORT_TK name DOT_TK MULT_TK SC_TK
794 tree name = EXPR_WFL_NODE ($2);
796 /* Search for duplicates. */
797 for (it = ctxp->import_demand_list; it; it = TREE_CHAIN (it))
798 if (EXPR_WFL_NODE (TREE_PURPOSE (it)) == name)
800 /* Don't import the same thing more than once, just ignore
801 duplicates (7.5.2) */
804 read_import_dir ($2);
805 ctxp->import_demand_list =
806 chainon (ctxp->import_demand_list,
807 build_tree_list ($2, NULL_TREE));
810 | IMPORT_TK name DOT_TK error
811 {yyerror ("'*' expected"); RECOVER;}
812 | IMPORT_TK name DOT_TK MULT_TK error
813 {yyerror ("';' expected"); RECOVER;}
818 { end_class_declaration (0); }
819 | interface_declaration
820 { end_class_declaration (0); }
825 yyerror ("Class or interface declaration expected");
829 /* 19.7 Shortened from the original:
830 modifiers: modifier | modifiers modifier
831 modifier: any of public... */
837 | modifiers MODIFIER_TK
842 (ctxp->modifier_ctx [$2], "Modifier `%s' declared twice",
843 java_accstring_lookup (acc));
851 /* 19.8.1 Production from $8.1: Class Declaration */
853 modifiers CLASS_TK identifier super interfaces
854 { create_class ($1, $3, $4, $5); }
856 | CLASS_TK identifier super interfaces
857 { create_class (0, $2, $3, $4); }
859 | modifiers CLASS_TK error
860 {yyerror ("Missing class name"); RECOVER;}
862 {yyerror ("Missing class name"); RECOVER;}
863 | CLASS_TK identifier error
865 if (!ctxp->class_err) yyerror ("'{' expected");
868 | modifiers CLASS_TK identifier error
869 {if (!ctxp->class_err) yyerror ("'{' expected"); RECOVER;}
874 | EXTENDS_TK class_type
876 | EXTENDS_TK class_type error
877 {yyerror ("'{' expected"); ctxp->class_err=1;}
879 {yyerror ("Missing super class name"); ctxp->class_err=1;}
884 | IMPLEMENTS_TK interface_type_list
886 | IMPLEMENTS_TK error
889 yyerror ("Missing interface name");
896 ctxp->interface_number = 1;
897 $$ = build_tree_list ($1, NULL_TREE);
899 | interface_type_list C_TK interface_type
901 ctxp->interface_number++;
902 $$ = chainon ($1, build_tree_list ($3, NULL_TREE));
904 | interface_type_list C_TK error
905 {yyerror ("Missing interface name"); RECOVER;}
911 /* Store the location of the `}' when doing xrefs */
913 DECL_END_SOURCE_LINE (GET_CPC ()) =
914 EXPR_WFL_ADD_COL ($2.location, 1);
917 | OCB_TK class_body_declarations CCB_TK
919 /* Store the location of the `}' when doing xrefs */
921 DECL_END_SOURCE_LINE (GET_CPC ()) =
922 EXPR_WFL_ADD_COL ($3.location, 1);
927 class_body_declarations:
928 class_body_declaration
929 | class_body_declarations class_body_declaration
932 class_body_declaration:
933 class_member_declaration
935 | constructor_declaration
936 | block /* Added, JDK1.1, instance initializer */
938 if ($1 != empty_stmt_node)
940 TREE_CHAIN ($1) = CPC_INSTANCE_INITIALIZER_STMT (ctxp);
941 SET_CPC_INSTANCE_INITIALIZER_STMT (ctxp, $1);
946 class_member_declaration:
949 | class_declaration /* Added, JDK1.1 inner classes */
950 { end_class_declaration (1); }
951 | interface_declaration /* Added, JDK1.1 inner interfaces */
952 { end_class_declaration (1); }
956 /* 19.8.2 Productions from 8.3: Field Declarations */
958 type variable_declarators SC_TK
959 { register_fields (0, $1, $2); }
960 | modifiers type variable_declarators SC_TK
963 ("Illegal modifier `%s' for field declaration",
964 $1, FIELD_MODIFIERS);
965 check_modifiers_consistency ($1);
966 register_fields ($1, $2, $3);
970 variable_declarators:
971 /* Should we use build_decl_list () instead ? FIXME */
972 variable_declarator /* Default rule */
973 | variable_declarators C_TK variable_declarator
974 { $$ = chainon ($1, $3); }
975 | variable_declarators C_TK error
976 {yyerror ("Missing term"); RECOVER;}
980 variable_declarator_id
981 { $$ = build_tree_list ($1, NULL_TREE); }
982 | variable_declarator_id ASSIGN_TK variable_initializer
984 if (java_error_count)
987 ($1, build_assignment ($2.token, $2.location, $1, $3));
989 | variable_declarator_id ASSIGN_TK error
991 yyerror ("Missing variable initializer");
992 $$ = build_tree_list ($1, NULL_TREE);
995 | variable_declarator_id ASSIGN_TK variable_initializer error
997 yyerror ("';' expected");
998 $$ = build_tree_list ($1, NULL_TREE);
1003 variable_declarator_id:
1005 | variable_declarator_id OSB_TK CSB_TK
1006 { $$ = build_unresolved_array_type ($1); }
1008 {yyerror ("Invalid declaration"); DRECOVER(vdi);}
1009 | variable_declarator_id OSB_TK error
1011 tree node = java_lval.node;
1012 if (node && (TREE_CODE (node) == INTEGER_CST
1013 || TREE_CODE (node) == EXPR_WITH_FILE_LOCATION))
1014 yyerror ("Can't specify array dimension in a declaration");
1016 yyerror ("']' expected");
1019 | variable_declarator_id CSB_TK error
1020 {yyerror ("Unbalanced ']'"); DRECOVER(vdi);}
1023 variable_initializer:
1028 /* 19.8.3 Productions from 8.4: Method Declarations */
1032 current_function_decl = $1;
1033 if (current_function_decl
1034 && TREE_CODE (current_function_decl) == FUNCTION_DECL)
1035 source_start_java_method (current_function_decl);
1037 current_function_decl = NULL_TREE;
1040 { finish_method_declaration ($3); }
1041 | method_header error
1042 {YYNOT_TWICE yyerror ("'{' expected"); RECOVER;}
1046 type method_declarator throws
1047 { $$ = method_header (0, $1, $2, $3); }
1048 | VOID_TK method_declarator throws
1049 { $$ = method_header (0, void_type_node, $2, $3); }
1050 | modifiers type method_declarator throws
1051 { $$ = method_header ($1, $2, $3, $4); }
1052 | modifiers VOID_TK method_declarator throws
1053 { $$ = method_header ($1, void_type_node, $3, $4); }
1056 yyerror ("Invalid method declaration, method name required");
1059 | modifiers type error
1062 {yyerror ("Identifier expected"); RECOVER;}
1063 | modifiers VOID_TK error
1064 {yyerror ("Identifier expected"); RECOVER;}
1067 yyerror ("Invalid method declaration, return type required");
1073 identifier OP_TK CP_TK
1075 ctxp->formal_parameter_number = 0;
1076 $$ = method_declarator ($1, NULL_TREE);
1078 | identifier OP_TK formal_parameter_list CP_TK
1079 { $$ = method_declarator ($1, $3); }
1080 | method_declarator OSB_TK CSB_TK
1082 EXPR_WFL_LINECOL (wfl_operator) = $2.location;
1084 build_unresolved_array_type (TREE_PURPOSE ($1));
1085 parse_warning_context
1087 "Discouraged form of returned type specification");
1089 | identifier OP_TK error
1090 {yyerror ("')' expected"); DRECOVER(method_declarator);}
1091 | method_declarator OSB_TK error
1092 {yyerror ("']' expected"); RECOVER;}
1095 formal_parameter_list:
1098 ctxp->formal_parameter_number = 1;
1100 | formal_parameter_list C_TK formal_parameter
1102 ctxp->formal_parameter_number += 1;
1103 $$ = chainon ($1, $3);
1105 | formal_parameter_list C_TK error
1106 { yyerror ("Missing formal parameter term"); RECOVER; }
1110 type variable_declarator_id
1112 $$ = build_tree_list ($2, $1);
1114 | final type variable_declarator_id /* Added, JDK1.1 final parms */
1116 $$ = build_tree_list ($3, $2);
1117 ARG_FINAL_P ($$) = 1;
1121 yyerror ("Missing identifier"); RECOVER;
1126 yyerror ("Missing identifier"); RECOVER;
1134 check_modifiers ("Illegal modifier `%s'. Only `final' was expected here",
1136 if ($1 != ACC_FINAL)
1137 MODIFIER_WFL (FINAL_TK) = build_wfl_node (NULL_TREE);
1143 | THROWS_TK class_type_list
1146 {yyerror ("Missing class type term"); RECOVER;}
1151 { $$ = build_tree_list ($1, $1); }
1152 | class_type_list C_TK class_type
1153 { $$ = tree_cons ($3, $3, $1); }
1154 | class_type_list C_TK error
1155 {yyerror ("Missing class type term"); RECOVER;}
1160 | SC_TK { $$ = NULL_TREE; }
1163 /* 19.8.4 Productions from 8.5: Static Initializers */
1167 TREE_CHAIN ($2) = CPC_STATIC_INITIALIZER_STMT (ctxp);
1168 SET_CPC_STATIC_INITIALIZER_STMT (ctxp, $2);
1169 current_static_block = NULL_TREE;
1173 static: /* Test lval.sub_token here */
1176 check_modifiers ("Illegal modifier `%s' for static initializer", $1, ACC_STATIC);
1177 /* Can't have a static initializer in an innerclass */
1178 if ($1 | ACC_STATIC &&
1179 GET_CPC_LIST () && !TOPLEVEL_CLASS_DECL_P (GET_CPC ()))
1181 (MODIFIER_WFL (STATIC_TK),
1182 "Can't define static initializer in class `%s'. Static initializer can only be defined in top-level classes",
1183 IDENTIFIER_POINTER (DECL_NAME (GET_CPC ())));
1184 SOURCE_FRONTEND_DEBUG (("Modifiers: %d", $1));
1188 /* 19.8.5 Productions from 8.6: Constructor Declarations */
1189 constructor_declaration:
1192 current_function_decl = $1;
1193 source_start_java_method (current_function_decl);
1196 { finish_method_declaration ($3); }
1200 constructor_declarator throws
1201 { $$ = method_header (0, NULL_TREE, $1, $2); }
1202 | modifiers constructor_declarator throws
1203 { $$ = method_header ($1, NULL_TREE, $2, $3); }
1206 constructor_declarator:
1207 simple_name OP_TK CP_TK
1209 ctxp->formal_parameter_number = 0;
1210 $$ = method_declarator ($1, NULL_TREE);
1212 | simple_name OP_TK formal_parameter_list CP_TK
1213 { $$ = method_declarator ($1, $3); }
1217 /* Unlike regular method, we always need a complete (empty)
1218 body so we can safely perform all the required code
1219 addition (super invocation and field initialization) */
1220 block_begin constructor_block_end
1222 BLOCK_EXPR_BODY ($2) = empty_stmt_node;
1225 | block_begin explicit_constructor_invocation constructor_block_end
1227 | block_begin block_statements constructor_block_end
1229 | block_begin explicit_constructor_invocation block_statements constructor_block_end
1233 constructor_block_end:
1237 /* Error recovery for that rule moved down expression_statement: rule. */
1238 explicit_constructor_invocation:
1239 this_or_super OP_TK CP_TK SC_TK
1241 $$ = build_method_invocation ($1, NULL_TREE);
1242 $$ = build_debugable_stmt (EXPR_WFL_LINECOL ($1), $$);
1243 $$ = java_method_add_stmt (current_function_decl, $$);
1245 | this_or_super OP_TK argument_list CP_TK SC_TK
1247 $$ = build_method_invocation ($1, $3);
1248 $$ = build_debugable_stmt (EXPR_WFL_LINECOL ($1), $$);
1249 $$ = java_method_add_stmt (current_function_decl, $$);
1251 /* Added, JDK1.1 inner classes. Modified because the rule
1252 'primary' couldn't work. */
1253 | name DOT_TK SUPER_TK OP_TK argument_list CP_TK SC_TK
1254 {$$ = parse_jdk1_1_error ("explicit constructor invocation"); }
1255 | name DOT_TK SUPER_TK OP_TK CP_TK SC_TK
1256 {$$ = parse_jdk1_1_error ("explicit constructor invocation"); }
1259 this_or_super: /* Added, simplifies error diagnostics */
1262 tree wfl = build_wfl_node (this_identifier_node);
1263 EXPR_WFL_LINECOL (wfl) = $1.location;
1268 tree wfl = build_wfl_node (super_identifier_node);
1269 EXPR_WFL_LINECOL (wfl) = $1.location;
1274 /* 19.9 Productions from 9: Interfaces */
1275 /* 19.9.1 Productions from 9.1: Interfaces Declarations */
1276 interface_declaration:
1277 INTERFACE_TK identifier
1278 { create_interface (0, $2, NULL_TREE); }
1280 | modifiers INTERFACE_TK identifier
1281 { create_interface ($1, $3, NULL_TREE); }
1283 | INTERFACE_TK identifier extends_interfaces
1284 { create_interface (0, $2, $3); }
1286 | modifiers INTERFACE_TK identifier extends_interfaces
1287 { create_interface ($1, $3, $4); }
1289 | INTERFACE_TK identifier error
1290 {yyerror ("'{' expected"); RECOVER;}
1291 | modifiers INTERFACE_TK identifier error
1292 {yyerror ("'{' expected"); RECOVER;}
1296 EXTENDS_TK interface_type
1298 ctxp->interface_number = 1;
1299 $$ = build_tree_list ($2, NULL_TREE);
1301 | extends_interfaces C_TK interface_type
1303 ctxp->interface_number++;
1304 $$ = chainon ($1, build_tree_list ($3, NULL_TREE));
1307 {yyerror ("Invalid interface type"); RECOVER;}
1308 | extends_interfaces C_TK error
1309 {yyerror ("Missing term"); RECOVER;}
1315 | OCB_TK interface_member_declarations CCB_TK
1319 interface_member_declarations:
1320 interface_member_declaration
1321 | interface_member_declarations interface_member_declaration
1324 interface_member_declaration:
1325 constant_declaration
1326 | abstract_method_declaration
1327 | class_declaration /* Added, JDK1.1 inner classes */
1328 { end_class_declaration (1); }
1329 | interface_declaration /* Added, JDK1.1 inner interfaces */
1330 { end_class_declaration (1); }
1333 constant_declaration:
1337 abstract_method_declaration:
1340 check_abstract_method_header ($1);
1341 current_function_decl = NULL_TREE; /* FIXME ? */
1343 | method_header error
1344 {yyerror ("';' expected"); RECOVER;}
1347 /* 19.10 Productions from 10: Arrays */
1350 { $$ = build_new_array_init ($1.location, NULL_TREE); }
1351 | OCB_TK C_TK CCB_TK
1352 { $$ = build_new_array_init ($1.location, NULL_TREE); }
1353 | OCB_TK variable_initializers CCB_TK
1354 { $$ = build_new_array_init ($1.location, $2); }
1355 | OCB_TK variable_initializers C_TK CCB_TK
1356 { $$ = build_new_array_init ($1.location, $2); }
1359 variable_initializers:
1360 variable_initializer
1362 $$ = tree_cons (maybe_build_array_element_wfl ($1),
1365 | variable_initializers C_TK variable_initializer
1367 $$ = tree_cons (maybe_build_array_element_wfl ($3), $3, $1);
1369 | variable_initializers C_TK error
1370 {yyerror ("Missing term"); RECOVER;}
1373 /* 19.11 Production from 14: Blocks and Statements */
1377 /* Store the location of the `}' when doing xrefs */
1378 if (current_function_decl && flag_emit_xref)
1379 DECL_END_SOURCE_LINE (current_function_decl) =
1380 EXPR_WFL_ADD_COL ($2.location, 1);
1381 $$ = empty_stmt_node;
1383 | block_begin block_statements block_end
1395 maybe_absorb_scoping_blocks ();
1396 /* Store the location of the `}' when doing xrefs */
1397 if (current_function_decl && flag_emit_xref)
1398 DECL_END_SOURCE_LINE (current_function_decl) =
1399 EXPR_WFL_ADD_COL ($1.location, 1);
1401 if (!BLOCK_SUBBLOCKS ($$))
1402 BLOCK_SUBBLOCKS ($$) = empty_stmt_node;
1408 | block_statements block_statement
1412 local_variable_declaration_statement
1414 { java_method_add_stmt (current_function_decl, $1); }
1415 | class_declaration /* Added, JDK1.1 local classes */
1417 LOCAL_CLASS_P (TREE_TYPE (GET_CPC ())) = 1;
1418 end_class_declaration (1);
1422 local_variable_declaration_statement:
1423 local_variable_declaration SC_TK /* Can't catch missing ';' here */
1426 local_variable_declaration:
1427 type variable_declarators
1428 { declare_local_variables (0, $1, $2); }
1429 | final type variable_declarators /* Added, JDK1.1 final locals */
1430 { declare_local_variables ($1, $2, $3); }
1434 statement_without_trailing_substatement
1437 | if_then_else_statement
1440 { $$ = exit_block (); }
1444 statement_without_trailing_substatement
1445 | labeled_statement_nsi
1446 | if_then_else_statement_nsi
1447 | while_statement_nsi
1449 { $$ = exit_block (); }
1452 statement_without_trailing_substatement:
1455 | expression_statement
1459 | continue_statement
1461 | synchronized_statement
1469 if (flag_extraneous_semicolon
1470 && ! current_static_block
1471 && (! current_function_decl ||
1472 /* Verify we're not in a inner class declaration */
1473 (GET_CPC () != TYPE_NAME
1474 (DECL_CONTEXT (current_function_decl)))))
1477 EXPR_WFL_SET_LINECOL (wfl_operator, lineno, -1);
1478 parse_warning_context (wfl_operator, "An empty declaration is a deprecated feature that should not be used");
1480 $$ = empty_stmt_node;
1485 identifier REL_CL_TK
1487 $$ = build_labeled_block (EXPR_WFL_LINECOL ($1),
1488 EXPR_WFL_NODE ($1));
1490 push_labeled_block ($$);
1491 PUSH_LABELED_BLOCK ($$);
1496 label_decl statement
1497 { $$ = finish_labeled_statement ($1, $2); }
1499 {yyerror ("':' expected"); RECOVER;}
1502 labeled_statement_nsi:
1503 label_decl statement_nsi
1504 { $$ = finish_labeled_statement ($1, $2); }
1507 /* We concentrate here a bunch of error handling rules that we couldn't write
1508 earlier, because expression_statement catches a missing ';'. */
1509 expression_statement:
1510 statement_expression SC_TK
1512 /* We have a statement. Generate a WFL around it so
1514 $$ = build_expr_wfl ($1, input_filename, lineno, 0);
1515 /* We know we have a statement, so set the debug
1516 info to be eventually generate here. */
1517 $$ = JAVA_MAYBE_GENERATE_DEBUG_INFO ($$);
1521 YYNOT_TWICE yyerror ("Invalid expression statement");
1522 DRECOVER (expr_stmt);
1526 YYNOT_TWICE yyerror ("Invalid expression statement");
1527 DRECOVER (expr_stmt);
1531 YYNOT_TWICE yyerror ("Invalid expression statement");
1532 DRECOVER (expr_stmt);
1534 | this_or_super OP_TK error
1535 {yyerror ("')' expected"); RECOVER;}
1536 | this_or_super OP_TK CP_TK error
1538 parse_ctor_invocation_error ();
1541 | this_or_super OP_TK argument_list error
1542 {yyerror ("')' expected"); RECOVER;}
1543 | this_or_super OP_TK argument_list CP_TK error
1545 parse_ctor_invocation_error ();
1548 | name DOT_TK SUPER_TK error
1549 {yyerror ("'(' expected"); RECOVER;}
1550 | name DOT_TK SUPER_TK OP_TK error
1551 {yyerror ("')' expected"); RECOVER;}
1552 | name DOT_TK SUPER_TK OP_TK argument_list error
1553 {yyerror ("')' expected"); RECOVER;}
1554 | name DOT_TK SUPER_TK OP_TK argument_list CP_TK error
1555 {yyerror ("';' expected"); RECOVER;}
1556 | name DOT_TK SUPER_TK OP_TK CP_TK error
1557 {yyerror ("';' expected"); RECOVER;}
1560 statement_expression:
1562 | pre_increment_expression
1563 | pre_decrement_expression
1564 | post_increment_expression
1565 | post_decrement_expression
1567 | class_instance_creation_expression
1571 IF_TK OP_TK expression CP_TK statement
1573 $$ = build_if_else_statement ($2.location, $3,
1577 {yyerror ("'(' expected"); RECOVER;}
1579 {yyerror ("Missing term"); RECOVER;}
1580 | IF_TK OP_TK expression error
1581 {yyerror ("')' expected"); RECOVER;}
1584 if_then_else_statement:
1585 IF_TK OP_TK expression CP_TK statement_nsi ELSE_TK statement
1586 { $$ = build_if_else_statement ($2.location, $3, $5, $7); }
1589 if_then_else_statement_nsi:
1590 IF_TK OP_TK expression CP_TK statement_nsi ELSE_TK statement_nsi
1591 { $$ = build_if_else_statement ($2.location, $3, $5, $7); }
1601 /* Make into "proper list" of COMPOUND_EXPRs.
1602 I.e. make the last statment also have its own
1604 maybe_absorb_scoping_blocks ();
1605 TREE_OPERAND ($1, 1) = exit_block ();
1606 $$ = build_debugable_stmt (EXPR_WFL_LINECOL ($1), $1);
1611 SWITCH_TK OP_TK expression CP_TK
1613 $$ = build (SWITCH_EXPR, NULL_TREE, $3, NULL_TREE);
1614 EXPR_WFL_LINECOL ($$) = $2.location;
1617 {yyerror ("'(' expected"); RECOVER;}
1618 | SWITCH_TK OP_TK error
1619 {yyerror ("Missing term or ')'"); DRECOVER(switch_statement);}
1620 | SWITCH_TK OP_TK expression CP_TK error
1621 {yyerror ("'{' expected"); RECOVER;}
1624 /* Default assignment is there to avoid type node on switch_block
1630 | OCB_TK switch_labels CCB_TK
1632 | OCB_TK switch_block_statement_groups CCB_TK
1634 | OCB_TK switch_block_statement_groups switch_labels CCB_TK
1638 switch_block_statement_groups:
1639 switch_block_statement_group
1640 | switch_block_statement_groups switch_block_statement_group
1643 switch_block_statement_group:
1644 switch_labels block_statements
1649 | switch_labels switch_label
1653 CASE_TK constant_expression REL_CL_TK
1655 tree lab = build1 (CASE_EXPR, NULL_TREE, $2);
1656 EXPR_WFL_LINECOL (lab) = $1.location;
1657 java_method_add_stmt (current_function_decl, lab);
1659 | DEFAULT_TK REL_CL_TK
1661 tree lab = build (DEFAULT_EXPR, NULL_TREE, NULL_TREE);
1662 EXPR_WFL_LINECOL (lab) = $1.location;
1663 java_method_add_stmt (current_function_decl, lab);
1666 {yyerror ("Missing or invalid constant expression"); RECOVER;}
1667 | CASE_TK constant_expression error
1668 {yyerror ("':' expected"); RECOVER;}
1670 {yyerror ("':' expected"); RECOVER;}
1674 WHILE_TK OP_TK expression CP_TK
1676 tree body = build_loop_body ($2.location, $3, 0);
1677 $$ = build_new_loop (body);
1682 while_expression statement
1683 { $$ = finish_loop_body (0, NULL_TREE, $2, 0); }
1685 {YYERROR_NOW; yyerror ("'(' expected"); RECOVER;}
1686 | WHILE_TK OP_TK error
1687 {yyerror ("Missing term and ')' expected"); RECOVER;}
1688 | WHILE_TK OP_TK expression error
1689 {yyerror ("')' expected"); RECOVER;}
1692 while_statement_nsi:
1693 while_expression statement_nsi
1694 { $$ = finish_loop_body (0, NULL_TREE, $2, 0); }
1700 tree body = build_loop_body (0, NULL_TREE, 1);
1701 $$ = build_new_loop (body);
1703 /* Need error handing here. FIXME */
1707 do_statement_begin statement WHILE_TK OP_TK expression CP_TK SC_TK
1708 { $$ = finish_loop_body ($4.location, $5, $2, 1); }
1712 for_begin SC_TK expression SC_TK for_update CP_TK statement
1714 if (TREE_CODE_CLASS (TREE_CODE ($3)) == 'c')
1715 $3 = build_wfl_node ($3);
1716 $$ = finish_for_loop (EXPR_WFL_LINECOL ($3), $3, $5, $7);
1718 | for_begin SC_TK SC_TK for_update CP_TK statement
1720 $$ = finish_for_loop (0, NULL_TREE, $4, $6);
1721 /* We have not condition, so we get rid of the EXIT_EXPR */
1722 LOOP_EXPR_BODY_CONDITION_EXPR (LOOP_EXPR_BODY ($$), 0) =
1725 | for_begin SC_TK error
1726 {yyerror ("Invalid control expression"); RECOVER;}
1727 | for_begin SC_TK expression SC_TK error
1728 {yyerror ("Invalid update expression"); RECOVER;}
1729 | for_begin SC_TK SC_TK error
1730 {yyerror ("Invalid update expression"); RECOVER;}
1734 for_begin SC_TK expression SC_TK for_update CP_TK statement_nsi
1735 { $$ = finish_for_loop (EXPR_WFL_LINECOL ($3), $3, $5, $7);}
1736 | for_begin SC_TK SC_TK for_update CP_TK statement_nsi
1738 $$ = finish_for_loop (0, NULL_TREE, $4, $6);
1739 /* We have not condition, so we get rid of the EXIT_EXPR */
1740 LOOP_EXPR_BODY_CONDITION_EXPR (LOOP_EXPR_BODY ($$), 0) =
1748 /* This scope defined for local variable that may be
1749 defined within the scope of the for loop */
1753 {yyerror ("'(' expected"); DRECOVER(for_1);}
1754 | FOR_TK OP_TK error
1755 {yyerror ("Invalid init statement"); RECOVER;}
1761 /* We now declare the loop body. The loop is
1762 declared as a for loop. */
1763 tree body = build_loop_body (0, NULL_TREE, 0);
1764 $$ = build_new_loop (body);
1765 FOR_LOOP_P ($$) = 1;
1766 /* The loop is added to the current block the for
1767 statement is defined within */
1768 java_method_add_stmt (current_function_decl, $$);
1771 for_init: /* Can be empty */
1772 { $$ = empty_stmt_node; }
1773 | statement_expression_list
1775 /* Init statement recorded within the previously
1776 defined block scope */
1777 $$ = java_method_add_stmt (current_function_decl, $1);
1779 | local_variable_declaration
1781 /* Local variable are recorded within the previously
1782 defined block scope */
1785 | statement_expression_list error
1786 {yyerror ("';' expected"); DRECOVER(for_init_1);}
1789 for_update: /* Can be empty */
1790 {$$ = empty_stmt_node;}
1791 | statement_expression_list
1792 { $$ = build_debugable_stmt (BUILD_LOCATION (), $1); }
1795 statement_expression_list:
1796 statement_expression
1797 { $$ = add_stmt_to_compound (NULL_TREE, NULL_TREE, $1); }
1798 | statement_expression_list C_TK statement_expression
1799 { $$ = add_stmt_to_compound ($1, NULL_TREE, $3); }
1800 | statement_expression_list C_TK error
1801 {yyerror ("Missing term"); RECOVER;}
1806 { $$ = build_bc_statement ($1.location, 1, NULL_TREE); }
1807 | BREAK_TK identifier SC_TK
1808 { $$ = build_bc_statement ($1.location, 1, $2); }
1810 {yyerror ("Missing term"); RECOVER;}
1811 | BREAK_TK identifier error
1812 {yyerror ("';' expected"); RECOVER;}
1817 { $$ = build_bc_statement ($1.location, 0, NULL_TREE); }
1818 | CONTINUE_TK identifier SC_TK
1819 { $$ = build_bc_statement ($1.location, 0, $2); }
1821 {yyerror ("Missing term"); RECOVER;}
1822 | CONTINUE_TK identifier error
1823 {yyerror ("';' expected"); RECOVER;}
1828 { $$ = build_return ($1.location, NULL_TREE); }
1829 | RETURN_TK expression SC_TK
1830 { $$ = build_return ($1.location, $2); }
1832 {yyerror ("Missing term"); RECOVER;}
1833 | RETURN_TK expression error
1834 {yyerror ("';' expected"); RECOVER;}
1838 THROW_TK expression SC_TK
1840 $$ = build1 (THROW_EXPR, NULL_TREE, $2);
1841 EXPR_WFL_LINECOL ($$) = $1.location;
1844 {yyerror ("Missing term"); RECOVER;}
1845 | THROW_TK expression error
1846 {yyerror ("';' expected"); RECOVER;}
1849 synchronized_statement:
1850 synchronized OP_TK expression CP_TK block
1852 $$ = build (SYNCHRONIZED_EXPR, NULL_TREE, $3, $5);
1853 EXPR_WFL_LINECOL ($$) =
1854 EXPR_WFL_LINECOL (MODIFIER_WFL (SYNCHRONIZED_TK));
1856 | synchronized OP_TK expression CP_TK error
1857 {yyerror ("'{' expected"); RECOVER;}
1858 | synchronized error
1859 {yyerror ("'(' expected"); RECOVER;}
1860 | synchronized OP_TK error CP_TK
1861 {yyerror ("Missing term"); RECOVER;}
1862 | synchronized OP_TK error
1863 {yyerror ("Missing term"); RECOVER;}
1870 "Illegal modifier `%s'. Only `synchronized' was expected here",
1871 $1, ACC_SYNCHRONIZED);
1872 if ($1 != ACC_SYNCHRONIZED)
1873 MODIFIER_WFL (SYNCHRONIZED_TK) =
1874 build_wfl_node (NULL_TREE);
1879 TRY_TK block catches
1880 { $$ = build_try_statement ($1.location, $2, $3); }
1881 | TRY_TK block finally
1882 { $$ = build_try_finally_statement ($1.location, $2, $3); }
1883 | TRY_TK block catches finally
1884 { $$ = build_try_finally_statement
1885 ($1.location, build_try_statement ($1.location,
1889 {yyerror ("'{' expected"); DRECOVER (try_statement);}
1894 | catches catch_clause
1896 TREE_CHAIN ($2) = $1;
1902 catch_clause_parameter block
1904 java_method_add_stmt (current_function_decl, $2);
1909 catch_clause_parameter:
1910 CATCH_TK OP_TK formal_parameter CP_TK
1912 /* We add a block to define a scope for
1913 formal_parameter (CCBP). The formal parameter is
1914 declared initialized by the appropriate function
1916 tree ccpb = enter_block ();
1917 tree init = build_assignment
1918 (ASSIGN_TK, $2.location, TREE_PURPOSE ($3),
1919 build (JAVA_EXC_OBJ_EXPR, ptr_type_node));
1920 declare_local_variables (0, TREE_VALUE ($3),
1921 build_tree_list (TREE_PURPOSE ($3),
1923 $$ = build1 (CATCH_EXPR, NULL_TREE, ccpb);
1924 EXPR_WFL_LINECOL ($$) = $1.location;
1927 {yyerror ("'(' expected"); RECOVER; $$ = NULL_TREE;}
1928 | CATCH_TK OP_TK error
1930 yyerror ("Missing term or ')' expected");
1931 RECOVER; $$ = NULL_TREE;
1933 | CATCH_TK OP_TK error CP_TK /* That's for () */
1934 {yyerror ("Missing term"); RECOVER; $$ = NULL_TREE;}
1941 {yyerror ("'{' expected"); RECOVER; }
1944 /* 19.12 Production from 15: Expressions */
1946 primary_no_new_array
1947 | array_creation_expression
1950 primary_no_new_array:
1953 { $$ = build_this ($1.location); }
1954 | OP_TK expression CP_TK
1956 | class_instance_creation_expression
1961 /* Added, JDK1.1 inner classes. Documentation is wrong
1962 refering to a 'ClassName' (class_name) rule that doesn't
1963 exist. Used name: instead. */
1964 | name DOT_TK THIS_TK
1966 tree wfl = build_wfl_node (this_identifier_node);
1967 $$ = make_qualified_primary ($1, wfl, EXPR_WFL_LINECOL ($1));
1969 | OP_TK expression error
1970 {yyerror ("')' expected"); RECOVER;}
1972 {yyerror ("'class' or 'this' expected" ); RECOVER;}
1973 | primitive_type DOT_TK error
1974 {yyerror ("'class' expected" ); RECOVER;}
1975 | VOID_TK DOT_TK error
1976 {yyerror ("'class' expected" ); RECOVER;}
1980 name DOT_TK CLASS_TK
1981 { $$ = build_incomplete_class_ref ($2.location, $1); }
1982 | array_type DOT_TK CLASS_TK
1983 { $$ = build_incomplete_class_ref ($2.location, $1); }
1984 | primitive_type DOT_TK CLASS_TK
1985 { $$ = build_incomplete_class_ref ($2.location, $1); }
1986 | VOID_TK DOT_TK CLASS_TK
1988 $$ = build_incomplete_class_ref ($2.location,
1993 class_instance_creation_expression:
1994 NEW_TK class_type OP_TK argument_list CP_TK
1995 { $$ = build_new_invocation ($2, $4); }
1996 | NEW_TK class_type OP_TK CP_TK
1997 { $$ = build_new_invocation ($2, NULL_TREE); }
1998 | anonymous_class_creation
1999 /* Added, JDK1.1 inner classes, modified to use name or
2000 primary instead of primary solely which couldn't work in
2002 | something_dot_new identifier OP_TK CP_TK
2004 tree ctor = build_new_invocation ($2, NULL_TREE);
2005 $$ = make_qualified_primary ($1, ctor,
2006 EXPR_WFL_LINECOL ($1));
2008 | something_dot_new identifier OP_TK CP_TK class_body
2009 | something_dot_new identifier OP_TK argument_list CP_TK
2011 tree ctor = build_new_invocation ($2, $4);
2012 $$ = make_qualified_primary ($1, ctor,
2013 EXPR_WFL_LINECOL ($1));
2015 | something_dot_new identifier OP_TK argument_list CP_TK class_body
2016 | NEW_TK error SC_TK
2017 {yyerror ("'(' expected"); DRECOVER(new_1);}
2018 | NEW_TK class_type error
2019 {yyerror ("'(' expected"); RECOVER;}
2020 | NEW_TK class_type OP_TK error
2021 {yyerror ("')' or term expected"); RECOVER;}
2022 | NEW_TK class_type OP_TK argument_list error
2023 {yyerror ("')' expected"); RECOVER;}
2024 | something_dot_new error
2025 {YYERROR_NOW; yyerror ("Identifier expected"); RECOVER;}
2026 | something_dot_new identifier error
2027 {yyerror ("'(' expected"); RECOVER;}
2030 /* Created after JDK1.1 rules originally added to
2031 class_instance_creation_expression, but modified to use
2032 'class_type' instead of 'TypeName' (type_name) which is mentionned
2033 in the documentation but doesn't exist. */
2035 anonymous_class_creation:
2036 NEW_TK class_type OP_TK argument_list CP_TK
2037 { create_anonymous_class ($1.location, $2); }
2040 tree id = build_wfl_node (DECL_NAME (GET_CPC ()));
2041 EXPR_WFL_LINECOL (id) = EXPR_WFL_LINECOL ($2);
2043 end_class_declaration (1);
2045 /* Now we can craft the new expression */
2046 $$ = build_new_invocation (id, $4);
2048 /* Note that we can't possibly be here if
2049 `class_type' is an interface (in which case the
2050 anonymous class extends Object and implements
2051 `class_type', hence its constructor can't have
2054 /* Otherwise, the innerclass must feature a
2055 constructor matching `argument_list'. Anonymous
2056 classes are a bit special: it's impossible to
2057 define constructor for them, hence constructors
2058 must be generated following the hints provided by
2059 the `new' expression. Whether a super constructor
2060 of that nature exists or not is to be verified
2061 later on in verify_constructor_super.
2063 It's during the expansion of a `new' statement
2064 refering to an anonymous class that a ctor will
2065 be generated for the anonymous class, with the
2069 | NEW_TK class_type OP_TK CP_TK
2070 { create_anonymous_class ($1.location, $2); }
2073 tree id = build_wfl_node (DECL_NAME (GET_CPC ()));
2074 EXPR_WFL_LINECOL (id) = EXPR_WFL_LINECOL ($2);
2076 end_class_declaration (1);
2078 /* Now we can craft the new expression. The
2079 statement doesn't need to be remember so that a
2080 constructor can be generated, since its signature
2081 is already known. */
2082 $$ = build_new_invocation (id, NULL_TREE);
2086 something_dot_new: /* Added, not part of the specs. */
2089 | primary DOT_TK NEW_TK
2096 $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
2097 ctxp->formal_parameter_number = 1;
2099 | argument_list C_TK expression
2101 ctxp->formal_parameter_number += 1;
2102 $$ = tree_cons (NULL_TREE, $3, $1);
2104 | argument_list C_TK error
2105 {yyerror ("Missing term"); RECOVER;}
2108 array_creation_expression:
2109 NEW_TK primitive_type dim_exprs
2110 { $$ = build_newarray_node ($2, $3, 0); }
2111 | NEW_TK class_or_interface_type dim_exprs
2112 { $$ = build_newarray_node ($2, $3, 0); }
2113 | NEW_TK primitive_type dim_exprs dims
2114 { $$ = build_newarray_node ($2, $3, pop_current_osb (ctxp));}
2115 | NEW_TK class_or_interface_type dim_exprs dims
2116 { $$ = build_newarray_node ($2, $3, pop_current_osb (ctxp));}
2117 /* Added, JDK1.1 anonymous array. Initial documentation rule
2119 | NEW_TK class_or_interface_type dims array_initializer
2122 int osb = pop_current_osb (ctxp);
2124 obstack_1grow (&temporary_obstack, '[');
2125 sig = obstack_finish (&temporary_obstack);
2126 $$ = build (NEW_ANONYMOUS_ARRAY_EXPR, NULL_TREE,
2127 $2, get_identifier (sig), $4);
2129 | NEW_TK primitive_type dims array_initializer
2131 int osb = pop_current_osb (ctxp);
2134 type = build_java_array_type (type, -1);
2135 $$ = build (NEW_ANONYMOUS_ARRAY_EXPR, NULL_TREE,
2136 build_pointer_type (type), NULL_TREE, $4);
2138 | NEW_TK error CSB_TK
2139 {yyerror ("'[' expected"); DRECOVER ("]");}
2140 | NEW_TK error OSB_TK
2141 {yyerror ("']' expected"); RECOVER;}
2146 { $$ = build_tree_list (NULL_TREE, $1); }
2147 | dim_exprs dim_expr
2148 { $$ = tree_cons (NULL_TREE, $2, $$); }
2152 OSB_TK expression CSB_TK
2154 if (JNUMERIC_TYPE_P (TREE_TYPE ($2)))
2156 $2 = build_wfl_node ($2);
2157 TREE_TYPE ($2) = NULL_TREE;
2159 EXPR_WFL_LINECOL ($2) = $1.location;
2162 | OSB_TK expression error
2163 {yyerror ("']' expected"); RECOVER;}
2166 yyerror ("Missing term");
2167 yyerror ("']' expected");
2176 /* If not initialized, allocate memory for the osb
2178 if (!ctxp->osb_limit)
2180 allocate = ctxp->osb_limit = 32;
2181 ctxp->osb_depth = -1;
2183 /* If capacity overflown, reallocate a bigger chunk */
2184 else if (ctxp->osb_depth+1 == ctxp->osb_limit)
2185 allocate = ctxp->osb_limit << 1;
2189 allocate *= sizeof (int);
2190 if (ctxp->osb_number)
2191 ctxp->osb_number = (int *)xrealloc (ctxp->osb_number,
2194 ctxp->osb_number = (int *)xmalloc (allocate);
2197 CURRENT_OSB (ctxp) = 1;
2199 | dims OSB_TK CSB_TK
2200 { CURRENT_OSB (ctxp)++; }
2202 { yyerror ("']' expected"); RECOVER;}
2206 primary DOT_TK identifier
2207 { $$ = make_qualified_primary ($1, $3, $2.location); }
2208 /* FIXME - REWRITE TO:
2209 { $$ = build_binop (COMPONENT_REF, $2.location, $1, $3); } */
2210 | SUPER_TK DOT_TK identifier
2212 tree super_wfl = build_wfl_node (super_identifier_node);
2213 EXPR_WFL_LINECOL (super_wfl) = $1.location;
2214 $$ = make_qualified_name (super_wfl, $3, $2.location);
2217 {yyerror ("Field expected"); DRECOVER (super_field_acces);}
2222 { $$ = build_method_invocation ($1, NULL_TREE); }
2223 | name OP_TK argument_list CP_TK
2224 { $$ = build_method_invocation ($1, $3); }
2225 | primary DOT_TK identifier OP_TK CP_TK
2227 if (TREE_CODE ($1) == THIS_EXPR)
2228 $$ = build_this_super_qualified_invocation
2229 (1, $3, NULL_TREE, 0, $2.location);
2232 tree invok = build_method_invocation ($3, NULL_TREE);
2233 $$ = make_qualified_primary ($1, invok, $2.location);
2236 | primary DOT_TK identifier OP_TK argument_list CP_TK
2238 if (TREE_CODE ($1) == THIS_EXPR)
2239 $$ = build_this_super_qualified_invocation
2240 (1, $3, $5, 0, $2.location);
2243 tree invok = build_method_invocation ($3, $5);
2244 $$ = make_qualified_primary ($1, invok, $2.location);
2247 | SUPER_TK DOT_TK identifier OP_TK CP_TK
2249 $$ = build_this_super_qualified_invocation
2250 (0, $3, NULL_TREE, $1.location, $2.location);
2252 | SUPER_TK DOT_TK identifier OP_TK argument_list CP_TK
2254 $$ = build_this_super_qualified_invocation
2255 (0, $3, $5, $1.location, $2.location);
2257 /* Screws up thing. I let it here until I'm convinced it can
2259 | primary DOT_TK error
2260 {yyerror ("'(' expected"); DRECOVER(bad);} */
2261 | SUPER_TK DOT_TK error CP_TK
2262 { yyerror ("'(' expected"); DRECOVER (method_invocation); }
2263 | SUPER_TK DOT_TK error DOT_TK
2264 { yyerror ("'(' expected"); DRECOVER (method_invocation); }
2268 name OSB_TK expression CSB_TK
2269 { $$ = build_array_ref ($2.location, $1, $3); }
2270 | primary_no_new_array OSB_TK expression CSB_TK
2271 { $$ = build_array_ref ($2.location, $1, $3); }
2274 yyerror ("Missing term and ']' expected");
2275 DRECOVER(array_access);
2277 | name OSB_TK expression error
2279 yyerror ("']' expected");
2280 DRECOVER(array_access);
2282 | primary_no_new_array OSB_TK error
2284 yyerror ("Missing term and ']' expected");
2285 DRECOVER(array_access);
2287 | primary_no_new_array OSB_TK expression error
2289 yyerror ("']' expected");
2290 DRECOVER(array_access);
2297 | post_increment_expression
2298 | post_decrement_expression
2301 post_increment_expression:
2302 postfix_expression INCR_TK
2303 { $$ = build_incdec ($2.token, $2.location, $1, 1); }
2306 post_decrement_expression:
2307 postfix_expression DECR_TK
2308 { $$ = build_incdec ($2.token, $2.location, $1, 1); }
2312 pre_increment_expression
2313 | pre_decrement_expression
2314 | PLUS_TK unary_expression
2315 {$$ = build_unaryop ($1.token, $1.location, $2); }
2316 | MINUS_TK unary_expression
2317 {$$ = build_unaryop ($1.token, $1.location, $2); }
2318 | unary_expression_not_plus_minus
2320 {yyerror ("Missing term"); RECOVER}
2322 {yyerror ("Missing term"); RECOVER}
2325 pre_increment_expression:
2326 INCR_TK unary_expression
2327 {$$ = build_incdec ($1.token, $1.location, $2, 0); }
2329 {yyerror ("Missing term"); RECOVER}
2332 pre_decrement_expression:
2333 DECR_TK unary_expression
2334 {$$ = build_incdec ($1.token, $1.location, $2, 0); }
2336 {yyerror ("Missing term"); RECOVER}
2339 unary_expression_not_plus_minus:
2341 | NOT_TK unary_expression
2342 {$$ = build_unaryop ($1.token, $1.location, $2); }
2343 | NEG_TK unary_expression
2344 {$$ = build_unaryop ($1.token, $1.location, $2); }
2347 {yyerror ("Missing term"); RECOVER}
2349 {yyerror ("Missing term"); RECOVER}
2352 cast_expression: /* Error handling here is potentially weak */
2353 OP_TK primitive_type dims CP_TK unary_expression
2356 int osb = pop_current_osb (ctxp);
2358 type = build_java_array_type (type, -1);
2359 $$ = build_cast ($1.location, type, $5);
2361 | OP_TK primitive_type CP_TK unary_expression
2362 { $$ = build_cast ($1.location, $2, $4); }
2363 | OP_TK expression CP_TK unary_expression_not_plus_minus
2364 { $$ = build_cast ($1.location, $2, $4); }
2365 | OP_TK name dims CP_TK unary_expression_not_plus_minus
2368 int osb = pop_current_osb (ctxp);
2370 obstack_1grow (&temporary_obstack, '[');
2371 obstack_grow0 (&temporary_obstack,
2372 IDENTIFIER_POINTER (EXPR_WFL_NODE ($2)),
2373 IDENTIFIER_LENGTH (EXPR_WFL_NODE ($2)));
2374 ptr = obstack_finish (&temporary_obstack);
2375 EXPR_WFL_NODE ($2) = get_identifier (ptr);
2376 $$ = build_cast ($1.location, $2, $5);
2378 | OP_TK primitive_type OSB_TK error
2379 {yyerror ("']' expected, invalid type expression");}
2382 YYNOT_TWICE yyerror ("Invalid type expression"); RECOVER;
2385 | OP_TK primitive_type dims CP_TK error
2386 {yyerror ("Missing term"); RECOVER;}
2387 | OP_TK primitive_type CP_TK error
2388 {yyerror ("Missing term"); RECOVER;}
2389 | OP_TK name dims CP_TK error
2390 {yyerror ("Missing term"); RECOVER;}
2393 multiplicative_expression:
2395 | multiplicative_expression MULT_TK unary_expression
2397 $$ = build_binop (BINOP_LOOKUP ($2.token),
2398 $2.location, $1, $3);
2400 | multiplicative_expression DIV_TK unary_expression
2402 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2405 | multiplicative_expression REM_TK unary_expression
2407 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2410 | multiplicative_expression MULT_TK error
2411 {yyerror ("Missing term"); RECOVER;}
2412 | multiplicative_expression DIV_TK error
2413 {yyerror ("Missing term"); RECOVER;}
2414 | multiplicative_expression REM_TK error
2415 {yyerror ("Missing term"); RECOVER;}
2418 additive_expression:
2419 multiplicative_expression
2420 | additive_expression PLUS_TK multiplicative_expression
2422 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2425 | additive_expression MINUS_TK multiplicative_expression
2427 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2430 | additive_expression PLUS_TK error
2431 {yyerror ("Missing term"); RECOVER;}
2432 | additive_expression MINUS_TK error
2433 {yyerror ("Missing term"); RECOVER;}
2438 | shift_expression LS_TK additive_expression
2440 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2443 | shift_expression SRS_TK additive_expression
2445 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2448 | shift_expression ZRS_TK additive_expression
2450 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2453 | shift_expression LS_TK error
2454 {yyerror ("Missing term"); RECOVER;}
2455 | shift_expression SRS_TK error
2456 {yyerror ("Missing term"); RECOVER;}
2457 | shift_expression ZRS_TK error
2458 {yyerror ("Missing term"); RECOVER;}
2461 relational_expression:
2463 | relational_expression LT_TK shift_expression
2465 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2468 | relational_expression GT_TK shift_expression
2470 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2473 | relational_expression LTE_TK shift_expression
2475 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2478 | relational_expression GTE_TK shift_expression
2480 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2483 | relational_expression INSTANCEOF_TK reference_type
2484 { $$ = build_binop (INSTANCEOF_EXPR, $2.location, $1, $3); }
2485 | relational_expression LT_TK error
2486 {yyerror ("Missing term"); RECOVER;}
2487 | relational_expression GT_TK error
2488 {yyerror ("Missing term"); RECOVER;}
2489 | relational_expression LTE_TK error
2490 {yyerror ("Missing term"); RECOVER;}
2491 | relational_expression GTE_TK error
2492 {yyerror ("Missing term"); RECOVER;}
2493 | relational_expression INSTANCEOF_TK error
2494 {yyerror ("Invalid reference type"); RECOVER;}
2497 equality_expression:
2498 relational_expression
2499 | equality_expression EQ_TK relational_expression
2501 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2504 | equality_expression NEQ_TK relational_expression
2506 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2509 | equality_expression EQ_TK error
2510 {yyerror ("Missing term"); RECOVER;}
2511 | equality_expression NEQ_TK error
2512 {yyerror ("Missing term"); RECOVER;}
2517 | and_expression AND_TK equality_expression
2519 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2522 | and_expression AND_TK error
2523 {yyerror ("Missing term"); RECOVER;}
2526 exclusive_or_expression:
2528 | exclusive_or_expression XOR_TK and_expression
2530 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2533 | exclusive_or_expression XOR_TK error
2534 {yyerror ("Missing term"); RECOVER;}
2537 inclusive_or_expression:
2538 exclusive_or_expression
2539 | inclusive_or_expression OR_TK exclusive_or_expression
2541 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2544 | inclusive_or_expression OR_TK error
2545 {yyerror ("Missing term"); RECOVER;}
2548 conditional_and_expression:
2549 inclusive_or_expression
2550 | conditional_and_expression BOOL_AND_TK inclusive_or_expression
2552 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2555 | conditional_and_expression BOOL_AND_TK error
2556 {yyerror ("Missing term"); RECOVER;}
2559 conditional_or_expression:
2560 conditional_and_expression
2561 | conditional_or_expression BOOL_OR_TK conditional_and_expression
2563 $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location,
2566 | conditional_or_expression BOOL_OR_TK error
2567 {yyerror ("Missing term"); RECOVER;}
2570 conditional_expression: /* Error handling here is weak */
2571 conditional_or_expression
2572 | conditional_or_expression REL_QM_TK expression REL_CL_TK conditional_expression
2574 $$ = build (CONDITIONAL_EXPR, NULL_TREE, $1, $3, $5);
2575 EXPR_WFL_LINECOL ($$) = $2.location;
2577 | conditional_or_expression REL_QM_TK REL_CL_TK error
2580 yyerror ("Missing term");
2583 | conditional_or_expression REL_QM_TK error
2584 {yyerror ("Missing term"); DRECOVER (2);}
2585 | conditional_or_expression REL_QM_TK expression REL_CL_TK error
2586 {yyerror ("Missing term"); DRECOVER (3);}
2589 assignment_expression:
2590 conditional_expression
2595 left_hand_side assignment_operator assignment_expression
2596 { $$ = build_assignment ($2.token, $2.location, $1, $3); }
2597 | left_hand_side assignment_operator error
2599 YYNOT_TWICE yyerror ("Missing term");
2610 assignment_operator:
2616 assignment_expression
2619 constant_expression:
2625 /* Helper function to retrieve an OSB count. Should be used when the
2626 `dims:' rule is being used. */
2629 pop_current_osb (ctxp)
2630 struct parser_ctxt *ctxp;
2634 if (ctxp->osb_depth < 0)
2637 to_return = CURRENT_OSB (ctxp);
2645 /* This section of the code deal with save/restoring parser contexts.
2646 Add mode documentation here. FIXME */
2648 /* Helper function. Create a new parser context. With
2649 COPY_FROM_PREVIOUS set to a non zero value, content of the previous
2650 context is copied, otherwise, the new context is zeroed. The newly
2651 created context becomes the current one. */
2654 create_new_parser_context (copy_from_previous)
2655 int copy_from_previous;
2657 struct parser_ctxt *new;
2659 new = (struct parser_ctxt *)xmalloc(sizeof (struct parser_ctxt));
2660 if (copy_from_previous)
2662 memcpy ((PTR)new, (PTR)ctxp, sizeof (struct parser_ctxt));
2663 new->saved_data_ctx = 1;
2666 memset ((PTR) new, 0, sizeof (struct parser_ctxt));
2672 /* Create a new parser context and make it the current one. */
2675 java_push_parser_context ()
2677 create_new_parser_context (0);
2681 java_pop_parser_context (generate)
2685 struct parser_ctxt *toFree, *next;
2694 lineno = ctxp->lineno;
2695 current_class = ctxp->class_type;
2698 /* If the old and new lexers differ, then free the old one. */
2699 if (ctxp->lexer && next && ctxp->lexer != next->lexer)
2700 java_destroy_lexer (ctxp->lexer);
2702 /* Set the single import class file flag to 0 for the current list
2703 of imported things */
2704 for (current = ctxp->import_list; current; current = TREE_CHAIN (current))
2705 IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (TREE_VALUE (current)) = 0;
2707 /* And restore those of the previous context */
2708 if ((ctxp = next)) /* Assignment is really meant here */
2709 for (current = ctxp->import_list; current; current = TREE_CHAIN (current))
2710 IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (TREE_VALUE (current)) = 1;
2712 /* If we pushed a context to parse a class intended to be generated,
2713 we keep it so we can remember the class. What we could actually
2714 do is to just update a list of class names. */
2717 toFree->next = ctxp_for_generation;
2718 ctxp_for_generation = toFree;
2724 /* Create a parser context for the use of saving some global
2728 java_parser_context_save_global ()
2732 java_push_parser_context ();
2733 ctxp->saved_data_ctx = 1;
2736 /* If this context already stores data, create a new one suitable
2737 for data storage. */
2738 else if (ctxp->saved_data)
2739 create_new_parser_context (1);
2741 ctxp->lineno = lineno;
2742 ctxp->class_type = current_class;
2743 ctxp->filename = input_filename;
2744 ctxp->function_decl = current_function_decl;
2745 ctxp->saved_data = 1;
2748 /* Restore some global variables from the previous context. Make the
2749 previous context the current one. */
2752 java_parser_context_restore_global ()
2754 lineno = ctxp->lineno;
2755 current_class = ctxp->class_type;
2756 input_filename = ctxp->filename;
2760 BUILD_FILENAME_IDENTIFIER_NODE (s, input_filename);
2761 EXPR_WFL_FILENAME_NODE (wfl_operator) = s;
2763 current_function_decl = ctxp->function_decl;
2764 ctxp->saved_data = 0;
2765 if (ctxp->saved_data_ctx)
2766 java_pop_parser_context (0);
2769 /* Suspend vital data for the current class/function being parsed so
2770 that an other class can be parsed. Used to let local/anonymous
2771 classes be parsed. */
2774 java_parser_context_suspend ()
2776 /* This makes debugging through java_debug_context easier */
2777 static const char *name = "<inner buffer context>";
2779 /* Duplicate the previous context, use it to save the globals we're
2781 create_new_parser_context (1);
2782 ctxp->function_decl = current_function_decl;
2783 ctxp->class_type = current_class;
2785 /* Then create a new context which inherits all data from the
2786 previous one. This will be the new current context */
2787 create_new_parser_context (1);
2789 /* Help debugging */
2790 ctxp->next->filename = name;
2793 /* Resume vital data for the current class/function being parsed so
2794 that an other class can be parsed. Used to let local/anonymous
2795 classes be parsed. The trick is the data storing file position
2796 informations must be restored to their current value, so parsing
2797 can resume as if no context was ever saved. */
2800 java_parser_context_resume ()
2802 struct parser_ctxt *old = ctxp; /* This one is to be discarded */
2803 struct parser_ctxt *saver = old->next; /* This one contain saved info */
2804 struct parser_ctxt *restored = saver->next; /* This one is the old current */
2806 /* We need to inherit the list of classes to complete/generate */
2807 restored->classd_list = old->classd_list;
2808 restored->class_list = old->class_list;
2810 /* Restore the current class and function from the saver */
2811 current_class = saver->class_type;
2812 current_function_decl = saver->function_decl;
2814 /* Retrive the restored context */
2817 /* Re-installed the data for the parsing to carry on */
2818 memcpy (&ctxp->marker_begining, &old->marker_begining,
2819 (size_t)(&ctxp->marker_end - &ctxp->marker_begining));
2821 /* Buffer context can now be discarded */
2826 /* Add a new anchor node to which all statement(s) initializing static
2827 and non static initialized upon declaration field(s) will be
2831 java_parser_context_push_initialized_field ()
2835 node = build_tree_list (NULL_TREE, NULL_TREE);
2836 TREE_CHAIN (node) = CPC_STATIC_INITIALIZER_LIST (ctxp);
2837 CPC_STATIC_INITIALIZER_LIST (ctxp) = node;
2839 node = build_tree_list (NULL_TREE, NULL_TREE);
2840 TREE_CHAIN (node) = CPC_INITIALIZER_LIST (ctxp);
2841 CPC_INITIALIZER_LIST (ctxp) = node;
2843 node = build_tree_list (NULL_TREE, NULL_TREE);
2844 TREE_CHAIN (node) = CPC_INSTANCE_INITIALIZER_LIST (ctxp);
2845 CPC_INSTANCE_INITIALIZER_LIST (ctxp) = node;
2848 /* Pop the lists of initialized field. If this lists aren't empty,
2849 remember them so we can use it to create and populate the finit$
2850 or <clinit> functions. */
2853 java_parser_context_pop_initialized_field ()
2856 tree class_type = TREE_TYPE (GET_CPC ());
2858 if (CPC_INITIALIZER_LIST (ctxp))
2860 stmts = CPC_INITIALIZER_STMT (ctxp);
2861 CPC_INITIALIZER_LIST (ctxp) = TREE_CHAIN (CPC_INITIALIZER_LIST (ctxp));
2862 if (stmts && !java_error_count)
2863 TYPE_FINIT_STMT_LIST (class_type) = reorder_static_initialized (stmts);
2866 if (CPC_STATIC_INITIALIZER_LIST (ctxp))
2868 stmts = CPC_STATIC_INITIALIZER_STMT (ctxp);
2869 CPC_STATIC_INITIALIZER_LIST (ctxp) =
2870 TREE_CHAIN (CPC_STATIC_INITIALIZER_LIST (ctxp));
2871 /* Keep initialization in order to enforce 8.5 */
2872 if (stmts && !java_error_count)
2873 TYPE_CLINIT_STMT_LIST (class_type) = nreverse (stmts);
2876 /* JDK 1.1 instance initializers */
2877 if (CPC_INSTANCE_INITIALIZER_LIST (ctxp))
2879 stmts = CPC_INSTANCE_INITIALIZER_STMT (ctxp);
2880 CPC_INSTANCE_INITIALIZER_LIST (ctxp) =
2881 TREE_CHAIN (CPC_INSTANCE_INITIALIZER_LIST (ctxp));
2882 if (stmts && !java_error_count)
2883 TYPE_II_STMT_LIST (class_type) = nreverse (stmts);
2888 reorder_static_initialized (list)
2891 /* We have to keep things in order. The alias initializer have to
2892 come first, then the initialized regular field, in reverse to
2893 keep them in lexical order. */
2894 tree marker, previous = NULL_TREE;
2895 for (marker = list; marker; previous = marker, marker = TREE_CHAIN (marker))
2896 if (TREE_CODE (marker) == TREE_LIST
2897 && !TREE_VALUE (marker) && !TREE_PURPOSE (marker))
2900 /* No static initialized, the list is fine as is */
2902 list = TREE_CHAIN (marker);
2904 /* No marker? reverse the whole list */
2906 list = nreverse (list);
2908 /* Otherwise, reverse what's after the marker and the new reordered
2909 sublist will replace the marker. */
2912 TREE_CHAIN (previous) = NULL_TREE;
2913 list = nreverse (list);
2914 list = chainon (TREE_CHAIN (marker), list);
2919 /* Helper functions to dump the parser context stack. */
2921 #define TAB_CONTEXT(C) \
2922 {int i; for (i = 0; i < (C); i++) fputc (' ', stderr);}
2925 java_debug_context_do (tab)
2928 struct parser_ctxt *copy = ctxp;
2932 fprintf (stderr, "ctxt: 0x%0lX\n", (unsigned long)copy);
2934 fprintf (stderr, "filename: %s\n", copy->filename);
2936 fprintf (stderr, "lineno: %d\n", copy->lineno);
2938 fprintf (stderr, "package: %s\n",
2940 IDENTIFIER_POINTER (copy->package) : "<none>"));
2942 fprintf (stderr, "context for saving: %d\n", copy->saved_data_ctx);
2944 fprintf (stderr, "saved data: %d\n", copy->saved_data);
2950 /* Dump the stacked up parser contexts. Intended to be called from a
2954 java_debug_context ()
2956 java_debug_context_do (0);
2961 /* Flag for the error report routine to issue the error the first time
2962 it's called (overriding the default behavior which is to drop the
2963 first invocation and honor the second one, taking advantage of a
2965 static int force_error = 0;
2967 /* Reporting an constructor invocation error. */
2969 parse_ctor_invocation_error ()
2971 if (DECL_CONSTRUCTOR_P (current_function_decl))
2972 yyerror ("Constructor invocation must be first thing in a constructor");
2974 yyerror ("Only constructors can invoke constructors");
2977 /* Reporting JDK1.1 features not implemented. */
2980 parse_jdk1_1_error (msg)
2983 sorry (": `%s' JDK1.1(TM) feature", msg);
2985 return empty_stmt_node;
2988 static int do_warning = 0;
2995 static int prev_lineno;
2996 static const char *prev_msg;
2999 char *remainder, *code_from_source;
3001 if (!force_error && prev_lineno == lineno)
3004 /* Save current error location but report latter, when the context is
3006 if (ctxp->java_error_flag == 0)
3008 ctxp->java_error_flag = 1;
3010 /* Do something to use the previous line if we're reaching the
3011 end of the file... */
3012 #ifdef VERBOSE_SKELETON
3013 printf ("* Error detected (%s)\n", (msg ? msg : "(null)"));
3018 /* Ignore duplicate message on the same line. BTW, this is dubious. FIXME */
3019 if (!force_error && msg == prev_msg && prev_lineno == elc.line)
3022 ctxp->java_error_flag = 0;
3024 java_warning_count++;
3028 if (elc.col == 0 && msg && msg[1] == ';')
3030 elc.col = ctxp->p_line->char_col-1;
3031 elc.line = ctxp->p_line->lineno;
3034 save_lineno = lineno;
3035 prev_lineno = lineno = elc.line;
3038 code_from_source = java_get_line_col (ctxp->filename, elc.line, elc.col);
3039 obstack_grow0 (&temporary_obstack,
3040 code_from_source, strlen (code_from_source));
3041 remainder = obstack_finish (&temporary_obstack);
3043 warning ("%s.\n%s", msg, remainder);
3045 error ("%s.\n%s", msg, remainder);
3047 /* This allow us to cheaply avoid an extra 'Invalid expression
3048 statement' error report when errors have been already reported on
3049 the same line. This occurs when we report an error but don't have
3050 a synchronization point other than ';', which
3051 expression_statement is the only one to take care of. */
3052 ctxp->prevent_ese = lineno = save_lineno;
3056 issue_warning_error_from_context (cl, msg, ap)
3061 const char *saved, *saved_input_filename;
3063 vsprintf (buffer, msg, ap);
3066 ctxp->elc.line = EXPR_WFL_LINENO (cl);
3067 ctxp->elc.col = (EXPR_WFL_COLNO (cl) == 0xfff ? -1 :
3068 (EXPR_WFL_COLNO (cl) == 0xffe ? -2 : EXPR_WFL_COLNO (cl)));
3070 /* We have a CL, that's a good reason for using it if it contains data */
3071 saved = ctxp->filename;
3072 if (TREE_CODE (cl) == EXPR_WITH_FILE_LOCATION && EXPR_WFL_FILENAME_NODE (cl))
3073 ctxp->filename = EXPR_WFL_FILENAME (cl);
3074 saved_input_filename = input_filename;
3075 input_filename = ctxp->filename;
3077 java_error (buffer);
3078 ctxp->filename = saved;
3079 input_filename = saved_input_filename;
3083 /* Issue an error message at a current source line CL */
3086 parse_error_context VPARAMS ((tree cl, const char *msg, ...))
3088 #ifndef ANSI_PROTOTYPES
3095 #ifndef ANSI_PROTOTYPES
3096 cl = va_arg (ap, tree);
3097 msg = va_arg (ap, const char *);
3099 issue_warning_error_from_context (cl, msg, ap);
3103 /* Issue a warning at a current source line CL */
3106 parse_warning_context VPARAMS ((tree cl, const char *msg, ...))
3108 #ifndef ANSI_PROTOTYPES
3115 #ifndef ANSI_PROTOTYPES
3116 cl = va_arg (ap, tree);
3117 msg = va_arg (ap, const char *);
3120 force_error = do_warning = 1;
3121 issue_warning_error_from_context (cl, msg, ap);
3122 do_warning = force_error = 0;
3127 find_expr_with_wfl (node)
3135 switch (TREE_CODE (node))
3138 node = BLOCK_EXPR_BODY (node);
3142 to_return = find_expr_with_wfl (TREE_OPERAND (node, 0));
3145 node = TREE_OPERAND (node, 1);
3149 node = TREE_OPERAND (node, 0);
3152 case LABELED_BLOCK_EXPR:
3153 node = TREE_OPERAND (node, 1);
3157 code = TREE_CODE_CLASS (TREE_CODE (node));
3158 if (((code == '1') || (code == '2') || (code == 'e'))
3159 && EXPR_WFL_LINECOL (node))
3167 /* Issue a missing return statement error. Uses METHOD to figure the
3168 last line of the method the error occurs in. */
3171 missing_return_error (method)
3174 EXPR_WFL_SET_LINECOL (wfl_operator, DECL_SOURCE_LINE_LAST (method), -2);
3175 parse_error_context (wfl_operator, "Missing return statement");
3178 /* Issue an unreachable statement error. From NODE, find the next
3179 statement to report appropriately. */
3181 unreachable_stmt_error (node)
3184 /* Browse node to find the next expression node that has a WFL. Use
3185 the location to report the error */
3186 if (TREE_CODE (node) == COMPOUND_EXPR)
3187 node = find_expr_with_wfl (TREE_OPERAND (node, 1));
3189 node = find_expr_with_wfl (node);
3193 EXPR_WFL_SET_LINECOL (wfl_operator, EXPR_WFL_LINENO (node), -2);
3194 parse_error_context (wfl_operator, "Unreachable statement");
3201 java_report_errors ()
3203 if (java_error_count)
3204 fprintf (stderr, "%d error%s",
3205 java_error_count, (java_error_count == 1 ? "" : "s"));
3206 if (java_warning_count)
3207 fprintf (stderr, "%s%d warning%s", (java_error_count ? ", " : ""),
3208 java_warning_count, (java_warning_count == 1 ? "" : "s"));
3209 if (java_error_count || java_warning_count)
3210 putc ('\n', stderr);
3211 return java_error_count;
3215 java_accstring_lookup (flags)
3218 static char buffer [80];
3219 #define COPY_RETURN(S) {strcpy (buffer, S); return buffer;}
3221 /* Access modifier looked-up first for easier report on forbidden
3223 if (flags & ACC_PUBLIC) COPY_RETURN ("public");
3224 if (flags & ACC_PRIVATE) COPY_RETURN ("private");
3225 if (flags & ACC_PROTECTED) COPY_RETURN ("protected");
3226 if (flags & ACC_STATIC) COPY_RETURN ("static");
3227 if (flags & ACC_FINAL) COPY_RETURN ("final");
3228 if (flags & ACC_SYNCHRONIZED) COPY_RETURN ("synchronized");
3229 if (flags & ACC_VOLATILE) COPY_RETURN ("volatile");
3230 if (flags & ACC_TRANSIENT) COPY_RETURN ("transient");
3231 if (flags & ACC_NATIVE) COPY_RETURN ("native");
3232 if (flags & ACC_INTERFACE) COPY_RETURN ("interface");
3233 if (flags & ACC_ABSTRACT) COPY_RETURN ("abstract");
3240 /* Issuing error messages upon redefinition of classes, interfaces or
3244 classitf_redefinition_error (context, id, decl, cl)
3245 const char *context;
3248 parse_error_context (cl, "%s `%s' already defined in %s:%d",
3249 context, IDENTIFIER_POINTER (id),
3250 DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
3251 /* Here we should point out where its redefined. It's a unicode. FIXME */
3255 variable_redefinition_error (context, name, type, line)
3256 tree context, name, type;
3259 const char *type_name;
3261 /* Figure a proper name for type. We might haven't resolved it */
3262 if (TREE_CODE (type) == POINTER_TYPE && !TREE_TYPE (type))
3263 type_name = IDENTIFIER_POINTER (TYPE_NAME (type));
3265 type_name = lang_printable_name (type, 0);
3267 parse_error_context (context,
3268 "Variable `%s' is already defined in this method and was declared `%s %s' at line %d",
3269 IDENTIFIER_POINTER (name),
3270 type_name, IDENTIFIER_POINTER (name), line);
3274 build_array_from_name (type, type_wfl, name, ret_name)
3275 tree type, type_wfl, name, *ret_name;
3280 /* Eventually get more dims */
3281 string = IDENTIFIER_POINTER (name);
3282 while (string [more_dims] == '[')
3285 /* If we have, then craft a new type for this variable */
3290 name = get_identifier (&string [more_dims]);
3292 /* If we have a pointer, use its type */
3293 if (TREE_CODE (type) == POINTER_TYPE)
3294 type = TREE_TYPE (type);
3296 /* Building the first dimension of a primitive type uses this
3298 if (JPRIMITIVE_TYPE_P (type))
3300 type = build_java_array_type (type, -1);
3303 /* Otherwise, if we have a WFL for this type, use it (the type
3304 is already an array on an unresolved type, and we just keep
3305 on adding dimensions) */
3310 string = IDENTIFIER_POINTER (TYPE_NAME (save));
3311 while (string[i] == '[')
3316 /* Add all the dimensions */
3318 type = build_unresolved_array_type (type);
3320 /* The type may have been incomplete in the first place */
3322 type = obtain_incomplete_type (type);
3330 /* Build something that the type identifier resolver will identify as
3331 being an array to an unresolved type. TYPE_WFL is a WFL on a
3335 build_unresolved_array_type (type_or_wfl)
3341 /* TYPE_OR_WFL might be an array on a resolved type. In this case,
3342 just create a array type */
3343 if (TREE_CODE (type_or_wfl) == RECORD_TYPE)
3344 return build_java_array_type (type_or_wfl, -1);
3346 obstack_1grow (&temporary_obstack, '[');
3347 obstack_grow0 (&temporary_obstack,
3348 IDENTIFIER_POINTER (EXPR_WFL_NODE (type_or_wfl)),
3349 IDENTIFIER_LENGTH (EXPR_WFL_NODE (type_or_wfl)));
3350 ptr = obstack_finish (&temporary_obstack);
3351 wfl = build_expr_wfl (get_identifier (ptr),
3352 EXPR_WFL_FILENAME (type_or_wfl),
3353 EXPR_WFL_LINENO (type_or_wfl),
3354 EXPR_WFL_COLNO (type_or_wfl));
3355 /* Re-install the existing qualifications so that the type can be
3356 resolved properly. */
3357 EXPR_WFL_QUALIFICATION (wfl) = EXPR_WFL_QUALIFICATION (type_or_wfl);
3362 parser_add_interface (class_decl, interface_decl, wfl)
3363 tree class_decl, interface_decl, wfl;
3365 if (maybe_add_interface (TREE_TYPE (class_decl), TREE_TYPE (interface_decl)))
3366 parse_error_context (wfl, "Interface `%s' repeated",
3367 IDENTIFIER_POINTER (DECL_NAME (interface_decl)));
3370 /* Bulk of common class/interface checks. Return 1 if an error was
3371 encountered. TAG is 0 for a class, 1 for an interface. */
3374 check_class_interface_creation (is_interface, flags, raw_name, qualified_name, decl, cl)
3375 int is_interface, flags;
3376 tree raw_name, qualified_name, decl, cl;
3379 int sca = 0; /* Static class allowed */
3380 int icaf = 0; /* Inner class allowed flags */
3381 int uaaf = CLASS_MODIFIERS; /* Usually allowed access flags */
3384 fprintf (stderr, " %s%s %s",
3385 (CPC_INNER_P () ? "inner" : ""),
3386 (is_interface ? "interface" : "class"),
3387 IDENTIFIER_POINTER (qualified_name));
3389 /* Scope of an interface/class type name:
3390 - Can't be imported by a single type import
3391 - Can't already exists in the package */
3392 if (IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (raw_name)
3393 && (node = find_name_in_single_imports (raw_name))
3397 (cl, "%s name `%s' clashes with imported type `%s'",
3398 (is_interface ? "Interface" : "Class"),
3399 IDENTIFIER_POINTER (raw_name), IDENTIFIER_POINTER (node));
3402 if (decl && CLASS_COMPLETE_P (decl))
3404 classitf_redefinition_error ((is_interface ? "Interface" : "Class"),
3405 qualified_name, decl, cl);
3409 if (check_inner_class_redefinition (raw_name, cl))
3412 /* If public, file name should match class/interface name, except
3413 when dealing with an inner class */
3414 if (!CPC_INNER_P () && (flags & ACC_PUBLIC ))
3418 /* Contains OS dependent assumption on path separator. FIXME */
3419 for (f = &input_filename [strlen (input_filename)];
3420 f != input_filename && f[0] != '/' && f[0] != DIR_SEPARATOR;
3423 if (f[0] == '/' || f[0] == DIR_SEPARATOR)
3425 if (strncmp (IDENTIFIER_POINTER (raw_name),
3426 f , IDENTIFIER_LENGTH (raw_name)) ||
3427 f [IDENTIFIER_LENGTH (raw_name)] != '.')
3429 (cl, "Public %s `%s' must be defined in a file called `%s.java'",
3430 (is_interface ? "interface" : "class"),
3431 IDENTIFIER_POINTER (qualified_name),
3432 IDENTIFIER_POINTER (raw_name));
3435 /* Static classes can be declared only in top level classes. Note:
3436 once static, a inner class is a top level class. */
3437 if (flags & ACC_STATIC)
3439 /* Catch the specific error of declaring an class inner class
3440 with no toplevel enclosing class. Prevent check_modifiers from
3441 complaining a second time */
3442 if (CPC_INNER_P () && !TOPLEVEL_CLASS_DECL_P (GET_CPC()))
3444 parse_error_context (cl, "Inner class `%s' can't be static. Static classes can only occur in interfaces and top-level classes",
3445 IDENTIFIER_POINTER (qualified_name));
3448 /* Else, in the context of a top-level class declaration, let
3449 `check_modifiers' do its job, otherwise, give it a go */
3451 sca = (GET_CPC_LIST () ? ACC_STATIC : 0);
3454 /* Inner classes can be declared private or protected
3455 within their enclosing classes. */
3458 /* A class which is local to a block can't be public, private,
3459 protected or static. But it is created final, so allow this
3461 if (current_function_decl)
3462 icaf = sca = uaaf = ACC_FINAL;
3465 check_modifiers_consistency (flags);
3466 icaf = ACC_PROTECTED;
3467 if (! CLASS_INTERFACE (GET_CPC ()))
3468 icaf |= ACC_PRIVATE;
3475 uaaf = INTERFACE_INNER_MODIFIERS;
3477 uaaf = INTERFACE_MODIFIERS;
3479 check_modifiers ("Illegal modifier `%s' for interface declaration",
3483 check_modifiers ((current_function_decl ?
3484 "Illegal modifier `%s' for local class declaration" :
3485 "Illegal modifier `%s' for class declaration"),
3486 flags, uaaf|sca|icaf);
3491 make_nested_class_name (cpc_list)
3499 make_nested_class_name (TREE_CHAIN (cpc_list));
3501 /* Pick the qualified name when dealing with the first upmost
3503 name = (TREE_CHAIN (cpc_list) ?
3504 TREE_PURPOSE (cpc_list) : DECL_NAME (TREE_VALUE (cpc_list)));
3505 obstack_grow (&temporary_obstack,
3506 IDENTIFIER_POINTER (name), IDENTIFIER_LENGTH (name));
3507 /* Why is NO_DOLLAR_IN_LABEL defined? */
3509 #ifdef NO_DOLLAR_IN_LABEL
3510 internal_error ("Can't use '$' as a separator for inner classes");
3513 obstack_1grow (&temporary_obstack, '$');
3516 /* Can't redefine a class already defined in an earlier scope. */
3519 check_inner_class_redefinition (raw_name, cl)
3524 for (scope_list = GET_CPC_LIST (); scope_list;
3525 scope_list = GET_NEXT_ENCLOSING_CPC (scope_list))
3526 if (raw_name == GET_CPC_UN_NODE (scope_list))
3529 (cl, "The class name `%s' is already defined in this scope. An inner class may not have the same simple name as any of its enclosing classes",
3530 IDENTIFIER_POINTER (raw_name));
3536 /* Tries to find a decl for CLASS_TYPE within ENCLOSING. If we fail,
3537 we remember ENCLOSING and SUPER. */
3540 resolve_inner_class (circularity_hash, cl, enclosing, super, class_type)
3541 struct hash_table *circularity_hash;
3542 tree cl, *enclosing, *super, class_type;
3544 tree local_enclosing = *enclosing;
3545 tree local_super = NULL_TREE;
3547 while (local_enclosing)
3549 tree intermediate, decl;
3551 hash_lookup (circularity_hash,
3552 (const hash_table_key) local_enclosing, TRUE, NULL);
3554 if ((decl = find_as_inner_class (local_enclosing, class_type, cl)))
3557 intermediate = local_enclosing;
3558 /* Explore enclosing contexts. */
3559 while (INNER_CLASS_DECL_P (intermediate))
3561 intermediate = DECL_CONTEXT (intermediate);
3562 if ((decl = find_as_inner_class (intermediate, class_type, cl)))
3566 /* Now go to the upper classes, bail out if necessary. We will
3567 analyze the returned SUPER and act accordingly (see
3568 do_resolve_class.) */
3569 local_super = CLASSTYPE_SUPER (TREE_TYPE (local_enclosing));
3570 if (!local_super || local_super == object_type_node)
3573 if (TREE_CODE (local_super) == POINTER_TYPE)
3574 local_super = do_resolve_class (NULL, local_super, NULL, NULL);
3576 local_super = TYPE_NAME (local_super);
3578 /* We may not have checked for circular inheritance yet, so do so
3579 here to prevent an infinite loop. */
3580 if (hash_lookup (circularity_hash,
3581 (const hash_table_key) local_super, FALSE, NULL))
3584 cl = lookup_cl (local_enclosing);
3587 (cl, "Cyclic inheritance involving %s",
3588 IDENTIFIER_POINTER (DECL_NAME (local_enclosing)));
3589 local_enclosing = NULL_TREE;
3592 local_enclosing = local_super;
3595 /* We failed. Return LOCAL_SUPER and LOCAL_ENCLOSING. */
3596 *super = local_super;
3597 *enclosing = local_enclosing;
3602 /* Within ENCLOSING, find a decl for NAME and return it. NAME can be
3606 find_as_inner_class (enclosing, name, cl)
3607 tree enclosing, name, cl;
3609 tree qual, to_return;
3613 name = TYPE_NAME (name);
3615 /* First search: within the scope of `enclosing', search for name */
3616 if (QUALIFIED_P (name) && cl && EXPR_WFL_NODE (cl) == name)
3617 qual = EXPR_WFL_QUALIFICATION (cl);
3619 qual = build_tree_list (cl, NULL_TREE);
3621 qual = build_tree_list (build_expr_wfl (name, NULL, 0, 0), NULL_TREE);
3623 if ((to_return = find_as_inner_class_do (qual, enclosing)))
3626 /* We're dealing with a qualified name. Try to resolve thing until
3627 we get something that is an enclosing class. */
3628 if (QUALIFIED_P (name) && cl && EXPR_WFL_NODE (cl) == name)
3630 tree acc = NULL_TREE, decl = NULL_TREE, ptr;
3632 for (qual = EXPR_WFL_QUALIFICATION (cl); qual && !decl;
3633 qual = TREE_CHAIN (qual))
3635 acc = merge_qualified_name (acc,
3636 EXPR_WFL_NODE (TREE_PURPOSE (qual)));
3637 BUILD_PTR_FROM_NAME (ptr, acc);
3639 /* Don't try to resolve ACC as a class name if it follows
3640 the current package name. We don't want to pick something
3641 that's accidentally there: for example `a.b.c' in package
3642 `a.b' shouldn't trigger loading `a' if it's there by
3645 && strstr (IDENTIFIER_POINTER (ctxp->package),
3646 IDENTIFIER_POINTER (acc)))
3649 decl = do_resolve_class (NULL_TREE, ptr, NULL_TREE, cl);
3652 /* A NULL qual and a decl means that the search ended
3653 successfully?!? We have to do something then. FIXME */
3658 qual = EXPR_WFL_QUALIFICATION (cl);
3660 /* Otherwise, create a qual for the other part of the resolution. */
3662 qual = build_tree_list (build_expr_wfl (name, NULL, 0, 0), NULL_TREE);
3664 return find_as_inner_class_do (qual, enclosing);
3667 /* We go inside the list of sub classes and try to find a way
3671 find_as_inner_class_do (qual, enclosing)
3672 tree qual, enclosing;
3677 for (; qual && enclosing; qual = TREE_CHAIN (qual))
3679 tree name_to_match = EXPR_WFL_NODE (TREE_PURPOSE (qual));
3680 tree next_enclosing = NULL_TREE;
3683 for (inner_list = DECL_INNER_CLASS_LIST (enclosing);
3684 inner_list; inner_list = TREE_CHAIN (inner_list))
3686 if (TREE_VALUE (inner_list) == name_to_match)
3688 next_enclosing = TREE_PURPOSE (inner_list);
3692 enclosing = next_enclosing;
3695 return (!qual && enclosing ? enclosing : NULL_TREE);
3698 /* Reach all inner classes and tie their unqualified name to a
3702 set_nested_class_simple_name_value (outer, set)
3708 for (l = DECL_INNER_CLASS_LIST (outer); l; l = TREE_CHAIN (l))
3709 IDENTIFIER_GLOBAL_VALUE (TREE_VALUE (l)) = (set ?
3710 TREE_PURPOSE (l) : NULL_TREE);
3714 link_nested_class_to_enclosing ()
3716 if (GET_ENCLOSING_CPC ())
3718 tree enclosing = GET_ENCLOSING_CPC_CONTEXT ();
3719 DECL_INNER_CLASS_LIST (enclosing) =
3720 tree_cons (GET_CPC (), GET_CPC_UN (),
3721 DECL_INNER_CLASS_LIST (enclosing));
3722 enclosing = enclosing;
3727 maybe_make_nested_class_name (name)
3730 tree id = NULL_TREE;
3734 make_nested_class_name (GET_CPC_LIST ());
3735 obstack_grow0 (&temporary_obstack,
3736 IDENTIFIER_POINTER (name),
3737 IDENTIFIER_LENGTH (name));
3738 id = get_identifier (obstack_finish (&temporary_obstack));
3740 QUALIFIED_P (id) = 1;
3745 /* If DECL is NULL, create and push a new DECL, record the current
3746 line CL and do other maintenance things. */
3749 maybe_create_class_interface_decl (decl, raw_name, qualified_name, cl)
3750 tree decl, raw_name, qualified_name, cl;
3753 decl = push_class (make_class (), qualified_name);
3755 /* Take care of the file and line business */
3756 DECL_SOURCE_FILE (decl) = EXPR_WFL_FILENAME (cl);
3757 /* If we're emiting xrefs, store the line/col number information */
3759 DECL_SOURCE_LINE (decl) = EXPR_WFL_LINECOL (cl);
3761 DECL_SOURCE_LINE (decl) = EXPR_WFL_LINENO (cl);
3762 CLASS_FROM_SOURCE_P (TREE_TYPE (decl)) = 1;
3763 CLASS_PARSED_P (TREE_TYPE (decl)) = 1;
3764 CLASS_FROM_CURRENTLY_COMPILED_P (TREE_TYPE (decl)) =
3765 IS_A_COMMAND_LINE_FILENAME_P (EXPR_WFL_FILENAME_NODE (cl));
3767 PUSH_CPC (decl, raw_name);
3768 DECL_CONTEXT (decl) = GET_ENCLOSING_CPC_CONTEXT ();
3770 /* Link the declaration to the already seen ones */
3771 TREE_CHAIN (decl) = ctxp->class_list;
3772 ctxp->class_list = decl;
3774 /* Create a new nodes in the global lists */
3775 gclass_list = tree_cons (NULL_TREE, decl, gclass_list);
3776 all_class_list = tree_cons (NULL_TREE, decl, all_class_list);
3778 /* Install a new dependency list element */
3779 create_jdep_list (ctxp);
3781 SOURCE_FRONTEND_DEBUG (("Defining class/interface %s",
3782 IDENTIFIER_POINTER (qualified_name)));
3787 add_superinterfaces (decl, interface_list)
3788 tree decl, interface_list;
3791 /* Superinterface(s): if present and defined, parser_check_super_interface ()
3792 takes care of ensuring that:
3793 - This is an accessible interface type,
3794 - Circularity detection.
3795 parser_add_interface is then called. If present but not defined,
3796 the check operation is delayed until the super interface gets
3798 for (node = interface_list; node; node = TREE_CHAIN (node))
3800 tree current = TREE_PURPOSE (node);
3801 tree idecl = IDENTIFIER_CLASS_VALUE (EXPR_WFL_NODE (current));
3802 if (idecl && CLASS_LOADED_P (TREE_TYPE (idecl)))
3804 if (!parser_check_super_interface (idecl, decl, current))
3805 parser_add_interface (decl, idecl, current);
3808 register_incomplete_type (JDEP_INTERFACE,
3809 current, decl, NULL_TREE);
3813 /* Create an interface in pass1 and return its decl. Return the
3814 interface's decl in pass 2. */
3817 create_interface (flags, id, super)
3821 tree raw_name = EXPR_WFL_NODE (id);
3822 tree q_name = parser_qualified_classname (raw_name);
3823 tree decl = IDENTIFIER_CLASS_VALUE (q_name);
3825 /* Certain syntax errors are making SUPER be like ID. Avoid this
3827 if (ctxp->class_err && id == super)
3830 EXPR_WFL_NODE (id) = q_name; /* Keep source location, even if refined. */
3832 /* Basic checks: scope, redefinition, modifiers */
3833 if (check_class_interface_creation (1, flags, raw_name, q_name, decl, id))
3839 /* Suspend the current parsing context if we're parsing an inner
3843 java_parser_context_suspend ();
3844 /* Interface members are public. */
3845 if (CLASS_INTERFACE (GET_CPC ()))
3846 flags |= ACC_PUBLIC;
3849 /* Push a new context for (static) initialized upon declaration fields */
3850 java_parser_context_push_initialized_field ();
3852 /* Interface modifiers check
3853 - public/abstract allowed (already done at that point)
3854 - abstract is obsolete (comes first, it's a warning, or should be)
3855 - Can't use twice the same (checked in the modifier rule) */
3856 if ((flags & ACC_ABSTRACT) && flag_redundant)
3857 parse_warning_context
3858 (MODIFIER_WFL (ABSTRACT_TK),
3859 "Redundant use of `abstract' modifier. Interface `%s' is implicitely abstract", IDENTIFIER_POINTER (raw_name));
3861 /* Create a new decl if DECL is NULL, otherwise fix it */
3862 decl = maybe_create_class_interface_decl (decl, raw_name, q_name, id);
3864 /* Set super info and mark the class a complete */
3865 set_super_info (ACC_INTERFACE | flags, TREE_TYPE (decl),
3866 object_type_node, ctxp->interface_number);
3867 ctxp->interface_number = 0;
3868 CLASS_COMPLETE_P (decl) = 1;
3869 add_superinterfaces (decl, super);
3874 /* Anonymous class counter. Will be reset to 1 every time a non
3875 anonymous class gets created. */
3876 static int anonymous_class_counter = 1;
3878 /* Patch anonymous class CLASS, by either extending or implementing
3882 patch_anonymous_class (type_decl, class_decl, wfl)
3883 tree type_decl, class_decl, wfl;
3885 tree class = TREE_TYPE (class_decl);
3886 tree type = TREE_TYPE (type_decl);
3887 tree binfo = TYPE_BINFO (class);
3889 /* If it's an interface, implement it */
3890 if (CLASS_INTERFACE (type_decl))
3895 if (parser_check_super_interface (type_decl, class_decl, wfl))
3898 s_binfo = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (class)), 0);
3899 length = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (class))+1;
3900 TYPE_BINFO_BASETYPES (class) = make_tree_vec (length);
3901 TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (class)), 0) = s_binfo;
3902 /* And add the interface */
3903 parser_add_interface (class_decl, type_decl, wfl);
3905 /* Otherwise, it's a type we want to extend */
3908 if (parser_check_super (type_decl, class_decl, wfl))
3910 BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (binfo), 0)) = type;
3915 create_anonymous_class (location, type_name)
3920 tree super = NULL_TREE, itf = NULL_TREE;
3921 tree id, type_decl, class;
3923 /* The unqualified name of the anonymous class. It's just a number. */
3924 sprintf (buffer, "%d", anonymous_class_counter++);
3925 id = build_wfl_node (get_identifier (buffer));
3926 EXPR_WFL_LINECOL (id) = location;
3928 /* We know about the type to extend/implement. We go ahead */
3929 if ((type_decl = IDENTIFIER_CLASS_VALUE (EXPR_WFL_NODE (type_name))))
3931 /* Create a class which either implements on extends the designated
3932 class. The class bears an innacessible name. */
3933 if (CLASS_INTERFACE (type_decl))
3935 /* It's OK to modify it here. It's been already used and
3936 shouldn't be reused */
3937 ctxp->interface_number = 1;
3938 /* Interfaces should presented as a list of WFLs */
3939 itf = build_tree_list (type_name, NULL_TREE);
3945 class = create_class (ACC_FINAL, id, super, itf);
3947 /* We didn't know anything about the stuff. We register a dependence. */
3949 register_incomplete_type (JDEP_ANONYMOUS, type_name, class, NULL_TREE);
3951 ANONYMOUS_CLASS_P (TREE_TYPE (class)) = 1;
3955 /* Create a class in pass1 and return its decl. Return class
3956 interface's decl in pass 2. */
3959 create_class (flags, id, super, interfaces)
3961 tree id, super, interfaces;
3963 tree raw_name = EXPR_WFL_NODE (id);
3964 tree class_id, decl;
3965 tree super_decl_type;
3967 /* Certain syntax errors are making SUPER be like ID. Avoid this
3969 if (ctxp->class_err && id == super)
3972 class_id = parser_qualified_classname (raw_name);
3973 decl = IDENTIFIER_CLASS_VALUE (class_id);
3974 EXPR_WFL_NODE (id) = class_id;
3976 /* Basic check: scope, redefinition, modifiers */
3977 if (check_class_interface_creation (0, flags, raw_name, class_id, decl, id))
3983 /* Suspend the current parsing context if we're parsing an inner
3984 class or an anonymous class. */
3987 java_parser_context_suspend ();
3988 /* Interface members are public. */
3989 if (CLASS_INTERFACE (GET_CPC ()))
3990 flags |= ACC_PUBLIC;
3993 /* Push a new context for (static) initialized upon declaration fields */
3994 java_parser_context_push_initialized_field ();
3996 /* Class modifier check:
3997 - Allowed modifier (already done at that point)
3998 - abstract AND final forbidden
3999 - Public classes defined in the correct file */
4000 if ((flags & ACC_ABSTRACT) && (flags & ACC_FINAL))
4002 (id, "Class `%s' can't be declared both abstract and final",
4003 IDENTIFIER_POINTER (raw_name));
4005 /* Create a new decl if DECL is NULL, otherwise fix it */
4006 decl = maybe_create_class_interface_decl (decl, raw_name, class_id, id);
4008 /* If SUPER exists, use it, otherwise use Object */
4011 /* Can't extend java.lang.Object */
4012 if (TREE_TYPE (IDENTIFIER_CLASS_VALUE (class_id)) == object_type_node)
4014 parse_error_context (id, "Can't extend `java.lang.Object'");
4019 register_incomplete_type (JDEP_SUPER, super, decl, NULL_TREE);
4021 else if (TREE_TYPE (decl) != object_type_node)
4022 super_decl_type = object_type_node;
4023 /* We're defining java.lang.Object */
4025 super_decl_type = NULL_TREE;
4027 /* A class nested in an interface is implicitly static. */
4028 if (INNER_CLASS_DECL_P (decl)
4029 && CLASS_INTERFACE (TYPE_NAME (TREE_TYPE (DECL_CONTEXT (decl)))))
4031 flags |= ACC_STATIC;
4034 /* Set super info and mark the class as complete. */
4035 set_super_info (flags, TREE_TYPE (decl), super_decl_type,
4036 ctxp->interface_number);
4037 ctxp->interface_number = 0;
4038 CLASS_COMPLETE_P (decl) = 1;
4039 add_superinterfaces (decl, interfaces);
4041 /* Add the private this$<n> field, Replicate final locals still in
4042 scope as private final fields mangled like val$<local_name>.
4043 This doesn't not occur for top level (static) inner classes. */
4044 if (PURE_INNER_CLASS_DECL_P (decl))
4045 add_inner_class_fields (decl, current_function_decl);
4047 /* If doing xref, store the location at which the inherited class
4048 (if any) was seen. */
4049 if (flag_emit_xref && super)
4050 DECL_INHERITED_SOURCE_LINE (decl) = EXPR_WFL_LINECOL (super);
4052 /* Eventually sets the @deprecated tag flag */
4053 CHECK_DEPRECATED (decl);
4055 /* Reset the anonymous class counter when declaring non inner classes */
4056 if (!INNER_CLASS_DECL_P (decl))
4057 anonymous_class_counter = 1;
4062 /* End a class declaration: register the statements used to create
4063 finit$ and <clinit>, pop the current class and resume the prior
4064 parser context if necessary. */
4067 end_class_declaration (resume)
4070 /* If an error occured, context weren't pushed and won't need to be
4071 popped by a resume. */
4072 int no_error_occured = ctxp->next && GET_CPC () != error_mark_node;
4074 java_parser_context_pop_initialized_field ();
4076 if (resume && no_error_occured)
4077 java_parser_context_resume ();
4079 /* We're ending a class declaration, this is a good time to reset
4080 the interface cout. Note that might have been already done in
4081 create_interface, but if at that time an inner class was being
4082 dealt with, the interface count was reset in a context created
4083 for the sake of handling inner classes declaration. */
4084 ctxp->interface_number = 0;
4088 add_inner_class_fields (class_decl, fct_decl)
4092 tree block, marker, f;
4094 f = add_field (TREE_TYPE (class_decl),
4095 build_current_thisn (TREE_TYPE (class_decl)),
4096 build_pointer_type (TREE_TYPE (DECL_CONTEXT (class_decl))),
4098 FIELD_THISN (f) = 1;
4103 for (block = GET_CURRENT_BLOCK (fct_decl);
4104 block && TREE_CODE (block) == BLOCK; block = BLOCK_SUPERCONTEXT (block))
4107 for (decl = BLOCK_EXPR_DECLS (block); decl; decl = TREE_CHAIN (decl))
4110 tree wfl, init, list;
4112 /* Avoid non final arguments. */
4113 if (!LOCAL_FINAL_P (decl))
4116 MANGLE_OUTER_LOCAL_VARIABLE_NAME (name, DECL_NAME (decl));
4117 MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_ID (pname, DECL_NAME (decl));
4118 wfl = build_wfl_node (name);
4119 init = build_wfl_node (pname);
4120 /* Build an initialization for the field: it will be
4121 initialized by a parameter added to finit$, bearing a
4122 mangled name of the field itself (param$<n>.) The
4123 parameter is provided to finit$ by the constructor
4124 invoking it (hence the constructor will also feature a
4125 hidden parameter, set to the value of the outer context
4126 local at the time the inner class is created.)
4128 Note: we take into account all possible locals that can
4129 be accessed by the inner class. It's actually not trivial
4130 to minimize these aliases down to the ones really
4131 used. One way to do that would be to expand all regular
4132 methods first, then finit$ to get a picture of what's
4133 used. It works with the exception that we would have to
4134 go back on all constructor invoked in regular methods to
4135 have their invokation reworked (to include the right amount
4136 of alias initializer parameters.)
4138 The only real way around, I think, is a first pass to
4139 identify locals really used in the inner class. We leave
4140 the flag FIELD_LOCAL_ALIAS_USED around for that future
4143 On the other hand, it only affect local inner classes,
4144 whose constructors (and finit$ call) will be featuring
4145 unecessary arguments. It's easy for a developper to keep
4146 this number of parameter down by using the `final'
4147 keyword only when necessary. For the time being, we can
4148 issue a warning on unecessary finals. FIXME */
4149 init = build_assignment (ASSIGN_TK, EXPR_WFL_LINECOL (wfl),
4152 /* Register the field. The TREE_LIST holding the part
4153 initialized/initializer will be marked ARG_FINAL_P so
4154 that the created field can be marked
4155 FIELD_LOCAL_ALIAS. */
4156 list = build_tree_list (wfl, init);
4157 ARG_FINAL_P (list) = 1;
4158 register_fields (ACC_PRIVATE | ACC_FINAL, TREE_TYPE (decl), list);
4162 if (!CPC_INITIALIZER_STMT (ctxp))
4165 /* If we ever registered an alias field, insert and marker to
4166 remeber where the list ends. The second part of the list (the one
4167 featuring initialized fields) so it can be later reversed to
4168 enforce 8.5. The marker will be removed during that operation. */
4169 marker = build_tree_list (NULL_TREE, NULL_TREE);
4170 TREE_CHAIN (marker) = CPC_INITIALIZER_STMT (ctxp);
4171 SET_CPC_INITIALIZER_STMT (ctxp, marker);
4174 /* Can't use lookup_field () since we don't want to load the class and
4175 can't set the CLASS_LOADED_P flag */
4178 find_field (class, name)
4183 for (decl = TYPE_FIELDS (class); decl; decl = TREE_CHAIN (decl))
4185 if (DECL_NAME (decl) == name)
4191 /* Wrap around lookup_field that doesn't potentially upset the value
4195 lookup_field_wrapper (class, name)
4199 tree decl = NULL_TREE;
4200 java_parser_context_save_global ();
4202 /* Last chance: if we're within the context of an inner class, we
4203 might be trying to access a local variable defined in an outer
4204 context. We try to look for it now. */
4205 if (INNER_CLASS_TYPE_P (class) && TREE_CODE (name) == IDENTIFIER_NODE)
4208 MANGLE_OUTER_LOCAL_VARIABLE_NAME (new_name, name);
4209 decl = lookup_field (&type, new_name);
4210 if (decl && decl != error_mark_node)
4211 FIELD_LOCAL_ALIAS_USED (decl) = 1;
4213 if (!decl || decl == error_mark_node)
4216 decl = lookup_field (&type, name);
4219 java_parser_context_restore_global ();
4220 return decl == error_mark_node ? NULL : decl;
4223 /* Find duplicate field within the same class declarations and report
4224 the error. Returns 1 if a duplicated field was found, 0
4228 duplicate_declaration_error_p (new_field_name, new_type, cl)
4229 tree new_field_name, new_type, cl;
4231 /* This might be modified to work with method decl as well */
4232 tree decl = find_field (TREE_TYPE (GET_CPC ()), new_field_name);
4235 char *t1 = xstrdup (purify_type_name
4236 ((TREE_CODE (new_type) == POINTER_TYPE
4237 && TREE_TYPE (new_type) == NULL_TREE) ?
4238 IDENTIFIER_POINTER (TYPE_NAME (new_type)) :
4239 lang_printable_name (new_type, 1)));
4240 /* The type may not have been completed by the time we report
4242 char *t2 = xstrdup (purify_type_name
4243 ((TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE
4244 && TREE_TYPE (TREE_TYPE (decl)) == NULL_TREE) ?
4245 IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))) :
4246 lang_printable_name (TREE_TYPE (decl), 1)));
4248 (cl , "Duplicate variable declaration: `%s %s' was `%s %s' (%s:%d)",
4249 t1, IDENTIFIER_POINTER (new_field_name),
4250 t2, IDENTIFIER_POINTER (DECL_NAME (decl)),
4251 DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
4259 /* Field registration routine. If TYPE doesn't exist, field
4260 declarations are linked to the undefined TYPE dependency list, to
4261 be later resolved in java_complete_class () */
4264 register_fields (flags, type, variable_list)
4266 tree type, variable_list;
4268 tree current, saved_type;
4269 tree class_type = NULL_TREE;
4270 int saved_lineno = lineno;
4272 tree wfl = NULL_TREE;
4275 class_type = TREE_TYPE (GET_CPC ());
4277 if (!class_type || class_type == error_mark_node)
4280 /* If we're adding fields to interfaces, those fields are public,
4282 if (CLASS_INTERFACE (TYPE_NAME (class_type)))
4284 OBSOLETE_MODIFIER_WARNING (MODIFIER_WFL (PUBLIC_TK),
4285 flags, ACC_PUBLIC, "interface field(s)");
4286 OBSOLETE_MODIFIER_WARNING (MODIFIER_WFL (STATIC_TK),
4287 flags, ACC_STATIC, "interface field(s)");
4288 OBSOLETE_MODIFIER_WARNING (MODIFIER_WFL (FINAL_TK),
4289 flags, ACC_FINAL, "interface field(s)");
4290 check_modifiers ("Illegal interface member modifier `%s'", flags,
4291 INTERFACE_FIELD_MODIFIERS);
4292 flags |= (ACC_PUBLIC | ACC_STATIC | ACC_FINAL);
4295 /* Obtain a suitable type for resolution, if necessary */
4296 SET_TYPE_FOR_RESOLUTION (type, wfl, must_chain);
4298 /* If TYPE is fully resolved and we don't have a reference, make one */
4299 PROMOTE_RECORD_IF_COMPLETE (type, must_chain);
4301 for (current = variable_list, saved_type = type; current;
4302 current = TREE_CHAIN (current), type = saved_type)
4306 tree cl = TREE_PURPOSE (current);
4307 tree init = TREE_VALUE (current);
4308 tree current_name = EXPR_WFL_NODE (cl);
4310 /* Can't declare non-final static fields in inner classes */
4311 if ((flags & ACC_STATIC) && !TOPLEVEL_CLASS_TYPE_P (class_type)
4312 && !(flags & ACC_FINAL))
4314 (cl, "Field `%s' can't be static in inner class `%s' unless it is final",
4315 IDENTIFIER_POINTER (EXPR_WFL_NODE (cl)),
4316 lang_printable_name (class_type, 0));
4318 /* Process NAME, as it may specify extra dimension(s) for it */
4319 type = build_array_from_name (type, wfl, current_name, ¤t_name);
4321 /* Type adjustment. We may have just readjusted TYPE because
4322 the variable specified more dimensions. Make sure we have
4323 a reference if we can and don't have one already. Also
4324 change the name if we have an init. */
4325 if (type != saved_type)
4327 PROMOTE_RECORD_IF_COMPLETE (type, must_chain);
4329 EXPR_WFL_NODE (TREE_OPERAND (init, 0)) = current_name;
4332 real_type = GET_REAL_TYPE (type);
4333 /* Check for redeclarations */
4334 if (duplicate_declaration_error_p (current_name, real_type, cl))
4337 /* Set lineno to the line the field was found and create a
4338 declaration for it. Eventually sets the @deprecated tag flag. */
4340 lineno = EXPR_WFL_LINECOL (cl);
4342 lineno = EXPR_WFL_LINENO (cl);
4343 field_decl = add_field (class_type, current_name, real_type, flags);
4344 CHECK_DEPRECATED (field_decl);
4346 /* If the field denotes a final instance variable, then we
4347 allocate a LANG_DECL_SPECIFIC part to keep track of its
4348 initialization. We also mark whether the field was
4349 initialized upon it's declaration. We don't do that if the
4350 created field is an alias to a final local. */
4351 if (!ARG_FINAL_P (current) && (flags & ACC_FINAL))
4353 MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (field_decl);
4354 DECL_FIELD_FINAL_WFL (field_decl) = cl;
4355 if ((flags & ACC_STATIC) && init)
4356 DECL_FIELD_FINAL_IUD (field_decl) = 1;
4359 /* If the couple initializer/initialized is marked ARG_FINAL_P,
4360 we mark the created field FIELD_LOCAL_ALIAS, so that we can
4361 hide parameters to this inner class finit$ and
4362 constructors. It also means that the field isn't final per
4364 if (ARG_FINAL_P (current))
4366 FIELD_LOCAL_ALIAS (field_decl) = 1;
4367 FIELD_FINAL (field_decl) = 0;
4370 /* Check if we must chain. */
4372 register_incomplete_type (JDEP_FIELD, wfl, field_decl, type);
4374 /* If we have an initialization value tied to the field */
4377 /* The field is declared static */
4378 if (flags & ACC_STATIC)
4380 /* We include the field and its initialization part into
4381 a list used to generate <clinit>. After <clinit> is
4382 walked, field initializations will be processed and
4383 fields initialized with known constants will be taken
4384 out of <clinit> and have their DECL_INITIAL set
4386 TREE_CHAIN (init) = CPC_STATIC_INITIALIZER_STMT (ctxp);
4387 SET_CPC_STATIC_INITIALIZER_STMT (ctxp, init);
4388 if (TREE_OPERAND (init, 1)
4389 && TREE_CODE (TREE_OPERAND (init, 1)) == NEW_ARRAY_INIT)
4390 TREE_STATIC (TREE_OPERAND (init, 1)) = 1;
4392 /* A non-static field declared with an immediate initialization is
4393 to be initialized in <init>, if any. This field is remembered
4394 to be processed at the time of the generation of <init>. */
4397 TREE_CHAIN (init) = CPC_INITIALIZER_STMT (ctxp);
4398 SET_CPC_INITIALIZER_STMT (ctxp, init);
4400 MODIFY_EXPR_FROM_INITIALIZATION_P (init) = 1;
4401 DECL_INITIAL (field_decl) = TREE_OPERAND (init, 1);
4404 lineno = saved_lineno;
4407 /* Generate finit$, using the list of initialized fields to populate
4408 its body. finit$'s parameter(s) list is adjusted to include the
4409 one(s) used to initialized the field(s) caching outer context
4413 generate_finit (class_type)
4417 tree list = TYPE_FINIT_STMT_LIST (class_type);
4418 tree mdecl, current, parms;
4420 parms = build_alias_initializer_parameter_list (AIPL_FUNCTION_CREATION,
4421 class_type, NULL_TREE,
4423 CRAFTED_PARAM_LIST_FIXUP (parms);
4424 mdecl = create_artificial_method (class_type, ACC_PRIVATE, void_type_node,
4425 finit_identifier_node, parms);
4426 fix_method_argument_names (parms, mdecl);
4427 layout_class_method (class_type, CLASSTYPE_SUPER (class_type),
4429 DECL_FUNCTION_NAP (mdecl) = count;
4430 start_artificial_method_body (mdecl);
4432 for (current = list; current; current = TREE_CHAIN (current))
4433 java_method_add_stmt (mdecl,
4434 build_debugable_stmt (EXPR_WFL_LINECOL (current),
4436 end_artificial_method_body (mdecl);
4440 /* Generate a function to run the instance initialization code. The
4441 private method is called `instinit$'. Unless we're dealing with an
4442 anonymous class, we determine whether all ctors of CLASS_TYPE
4443 declare a checked exception in their `throws' clause in order to
4444 see whether it's necessary to encapsulate the instance initializer
4445 statements in a try/catch/rethrow sequence. */
4448 generate_instinit (class_type)
4452 tree compound = NULL_TREE;
4453 tree parms = tree_cons (this_identifier_node,
4454 build_pointer_type (class_type), end_params_node);
4455 tree mdecl = create_artificial_method (class_type, ACC_PRIVATE,
4457 instinit_identifier_node, parms);
4459 layout_class_method (class_type, CLASSTYPE_SUPER (class_type),
4462 /* Gather all the statements in a compound */
4463 for (current = TYPE_II_STMT_LIST (class_type);
4464 current; current = TREE_CHAIN (current))
4465 compound = add_stmt_to_compound (compound, NULL_TREE, current);
4467 /* We need to encapsulate COMPOUND by a try/catch statement to
4468 rethrow exceptions that might occur in the instance initializer.
4469 We do that only if all ctors of CLASS_TYPE are set to catch a
4470 checked exception. This doesn't apply to anonymous classes (since
4471 they don't have declared ctors.) */
4472 if (!ANONYMOUS_CLASS_P (class_type) &&
4473 ctors_unchecked_throws_clause_p (class_type))
4475 compound = encapsulate_with_try_catch (0, exception_type_node, compound,
4476 build1 (THROW_EXPR, NULL_TREE,
4477 build_wfl_node (wpv_id)));
4478 DECL_FUNCTION_THROWS (mdecl) = build_tree_list (NULL_TREE,
4479 exception_type_node);
4482 start_artificial_method_body (mdecl);
4483 java_method_add_stmt (mdecl, compound);
4484 end_artificial_method_body (mdecl);
4491 build_instinit_invocation (class_type)
4494 tree to_return = NULL_TREE;
4496 if (TYPE_II_STMT_LIST (class_type))
4498 tree parm = build_tree_list (NULL_TREE,
4499 build_wfl_node (this_identifier_node));
4501 build_method_invocation (build_wfl_node (instinit_identifier_node),
4507 /* Shared accros method_declarator and method_header to remember the
4508 patch stage that was reached during the declaration of the method.
4509 A method DECL is built differently is there is no patch
4510 (JDEP_NO_PATCH) or a patch (JDEP_METHOD or JDEP_METHOD_RETURN)
4511 pending on the currently defined method. */
4513 static int patch_stage;
4515 /* Check the method declaration and add the method to its current
4516 class. If the argument list is known to contain incomplete types,
4517 the method is partially added and the registration will be resume
4518 once the method arguments resolved. If TYPE is NULL, we're dealing
4519 with a constructor. */
4522 method_header (flags, type, mdecl, throws)
4524 tree type, mdecl, throws;
4526 tree type_wfl = NULL_TREE;
4527 tree meth_name = NULL_TREE;
4528 tree current, orig_arg, this_class = NULL;
4531 int constructor_ok = 0, must_chain;
4534 if (mdecl == error_mark_node)
4535 return error_mark_node;
4536 meth = TREE_VALUE (mdecl);
4537 id = TREE_PURPOSE (mdecl);
4539 check_modifiers_consistency (flags);
4542 this_class = TREE_TYPE (GET_CPC ());
4544 if (!this_class || this_class == error_mark_node)
4547 /* There are some forbidden modifiers for an abstract method and its
4548 class must be abstract as well. */
4549 if (type && (flags & ACC_ABSTRACT))
4551 ABSTRACT_CHECK (flags, ACC_PRIVATE, id, "Private");
4552 ABSTRACT_CHECK (flags, ACC_STATIC, id, "Static");
4553 ABSTRACT_CHECK (flags, ACC_FINAL, id, "Final");
4554 ABSTRACT_CHECK (flags, ACC_NATIVE, id, "Native");
4555 ABSTRACT_CHECK (flags, ACC_SYNCHRONIZED,id, "Synchronized");
4556 if (!CLASS_ABSTRACT (TYPE_NAME (this_class))
4557 && !CLASS_INTERFACE (TYPE_NAME (this_class)))
4559 (id, "Class `%s' must be declared abstract to define abstract method `%s'",
4560 IDENTIFIER_POINTER (DECL_NAME (GET_CPC ())),
4561 IDENTIFIER_POINTER (EXPR_WFL_NODE (id)));
4564 /* Things to be checked when declaring a constructor */
4567 int ec = java_error_count;
4568 /* 8.6: Constructor declarations: we might be trying to define a
4569 method without specifying a return type. */
4570 if (EXPR_WFL_NODE (id) != GET_CPC_UN ())
4572 (id, "Invalid method declaration, return type required");
4573 /* 8.6.3: Constructor modifiers */
4576 JCONSTRUCTOR_CHECK (flags, ACC_ABSTRACT, id, "abstract");
4577 JCONSTRUCTOR_CHECK (flags, ACC_STATIC, id, "static");
4578 JCONSTRUCTOR_CHECK (flags, ACC_FINAL, id, "final");
4579 JCONSTRUCTOR_CHECK (flags, ACC_NATIVE, id, "native");
4580 JCONSTRUCTOR_CHECK (flags, ACC_SYNCHRONIZED, id, "synchronized");
4582 /* If we found error here, we don't consider it's OK to tread
4583 the method definition as a constructor, for the rest of this
4585 if (ec == java_error_count)
4589 /* Method declared within the scope of an interface are implicitly
4590 abstract and public. Conflicts with other erroneously provided
4591 modifiers are checked right after. */
4593 if (CLASS_INTERFACE (TYPE_NAME (this_class)))
4595 /* If FLAGS isn't set because of a modifier, turn the
4596 corresponding modifier WFL to NULL so we issue a warning on
4597 the obsolete use of the modifier */
4598 if (!(flags & ACC_PUBLIC))
4599 MODIFIER_WFL (PUBLIC_TK) = NULL;
4600 if (!(flags & ACC_ABSTRACT))
4601 MODIFIER_WFL (ABSTRACT_TK) = NULL;
4602 flags |= ACC_PUBLIC;
4603 flags |= ACC_ABSTRACT;
4606 /* Inner class can't declare static methods */
4607 if ((flags & ACC_STATIC) && !TOPLEVEL_CLASS_TYPE_P (this_class))
4610 (id, "Method `%s' can't be static in inner class `%s'. Only members of interfaces and top-level classes can be static",
4611 IDENTIFIER_POINTER (EXPR_WFL_NODE (id)),
4612 lang_printable_name (this_class, 0));
4615 /* Modifiers context reset moved up, so abstract method declaration
4616 modifiers can be later checked. */
4618 /* Set constructor returned type to void and method name to <init>,
4619 unless we found an error identifier the constructor (in which
4620 case we retain the original name) */
4623 type = void_type_node;
4625 meth_name = init_identifier_node;
4628 meth_name = EXPR_WFL_NODE (id);
4630 /* Do the returned type resolution and registration if necessary */
4631 SET_TYPE_FOR_RESOLUTION (type, type_wfl, must_chain);
4634 type = build_array_from_name (type, type_wfl, meth_name, &meth_name);
4635 EXPR_WFL_NODE (id) = meth_name;
4636 PROMOTE_RECORD_IF_COMPLETE (type, must_chain);
4640 patch_stage = JDEP_METHOD_RETURN;
4641 register_incomplete_type (patch_stage, type_wfl, id, type);
4642 TREE_TYPE (meth) = GET_REAL_TYPE (type);
4645 TREE_TYPE (meth) = type;
4647 saved_lineno = lineno;
4648 /* When defining an abstract or interface method, the curly
4649 bracket at level 1 doesn't exist because there is no function
4651 lineno = (ctxp->first_ccb_indent1 ? ctxp->first_ccb_indent1 :
4652 EXPR_WFL_LINENO (id));
4654 /* Remember the original argument list */
4655 orig_arg = TYPE_ARG_TYPES (meth);
4657 if (patch_stage) /* includes ret type and/or all args */
4660 meth = add_method_1 (this_class, flags, meth_name, meth);
4661 /* Patch for the return type */
4662 if (patch_stage == JDEP_METHOD_RETURN)
4664 jdep = CLASSD_LAST (ctxp->classd_list);
4665 JDEP_GET_PATCH (jdep) = &TREE_TYPE (TREE_TYPE (meth));
4667 /* This is the stop JDEP. METH allows the function's signature
4669 register_incomplete_type (JDEP_METHOD_END, NULL_TREE, meth, NULL_TREE);
4672 meth = add_method (this_class, flags, meth_name,
4673 build_java_signature (meth));
4675 /* Remember final parameters */
4676 MARK_FINAL_PARMS (meth, orig_arg);
4678 /* Fix the method argument list so we have the argument name
4680 fix_method_argument_names (orig_arg, meth);
4682 /* Register the parameter number and re-install the current line
4684 DECL_MAX_LOCALS (meth) = ctxp->formal_parameter_number+1;
4685 lineno = saved_lineno;
4687 /* Register exception specified by the `throws' keyword for
4688 resolution and set the method decl appropriate field to the list.
4689 Note: the grammar ensures that what we get here are class
4693 throws = nreverse (throws);
4694 for (current = throws; current; current = TREE_CHAIN (current))
4696 register_incomplete_type (JDEP_EXCEPTION, TREE_VALUE (current),
4697 NULL_TREE, NULL_TREE);
4698 JDEP_GET_PATCH (CLASSD_LAST (ctxp->classd_list)) =
4699 &TREE_VALUE (current);
4701 DECL_FUNCTION_THROWS (meth) = throws;
4704 if (TREE_TYPE (GET_CPC ()) != object_type_node)
4705 DECL_FUNCTION_WFL (meth) = id;
4707 /* Set the flag if we correctly processed a constructor */
4710 DECL_CONSTRUCTOR_P (meth) = 1;
4711 /* Compute and store the number of artificial parameters declared
4712 for this constructor */
4713 for (count = 0, current = TYPE_FIELDS (this_class); current;
4714 current = TREE_CHAIN (current))
4715 if (FIELD_LOCAL_ALIAS (current))
4717 DECL_FUNCTION_NAP (meth) = count;
4720 /* Eventually set the @deprecated tag flag */
4721 CHECK_DEPRECATED (meth);
4723 /* If doing xref, store column and line number information instead
4724 of the line number only. */
4726 DECL_SOURCE_LINE (meth) = EXPR_WFL_LINECOL (id);
4732 fix_method_argument_names (orig_arg, meth)
4733 tree orig_arg, meth;
4735 tree arg = TYPE_ARG_TYPES (TREE_TYPE (meth));
4736 if (TREE_CODE (TREE_TYPE (meth)) == METHOD_TYPE)
4738 TREE_PURPOSE (arg) = this_identifier_node;
4739 arg = TREE_CHAIN (arg);
4741 while (orig_arg != end_params_node)
4743 TREE_PURPOSE (arg) = TREE_PURPOSE (orig_arg);
4744 orig_arg = TREE_CHAIN (orig_arg);
4745 arg = TREE_CHAIN (arg);
4749 /* Complete the method declaration with METHOD_BODY. */
4752 finish_method_declaration (method_body)
4757 if (!current_function_decl)
4760 flags = get_access_flags_from_decl (current_function_decl);
4762 /* 8.4.5 Method Body */
4763 if ((flags & ACC_ABSTRACT || flags & ACC_NATIVE) && method_body)
4765 tree name = DECL_NAME (current_function_decl);
4766 parse_error_context (DECL_FUNCTION_WFL (current_function_decl),
4767 "%s method `%s' can't have a body defined",
4768 (METHOD_NATIVE (current_function_decl) ?
4769 "Native" : "Abstract"),
4770 IDENTIFIER_POINTER (name));
4771 method_body = NULL_TREE;
4773 else if (!(flags & ACC_ABSTRACT) && !(flags & ACC_NATIVE) && !method_body)
4775 tree name = DECL_NAME (current_function_decl);
4777 (DECL_FUNCTION_WFL (current_function_decl),
4778 "Non native and non abstract method `%s' must have a body defined",
4779 IDENTIFIER_POINTER (name));
4780 method_body = NULL_TREE;
4783 if (flag_emit_class_files && method_body
4784 && TREE_CODE (method_body) == NOP_EXPR
4785 && TREE_TYPE (current_function_decl)
4786 && TREE_TYPE (TREE_TYPE (current_function_decl)) == void_type_node)
4787 method_body = build1 (RETURN_EXPR, void_type_node, NULL);
4789 BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (current_function_decl)) = method_body;
4790 maybe_absorb_scoping_blocks ();
4791 /* Exit function's body */
4793 /* Merge last line of the function with first line, directly in the
4794 function decl. It will be used to emit correct debug info. */
4795 if (!flag_emit_xref)
4796 DECL_SOURCE_LINE_MERGE (current_function_decl, ctxp->last_ccb_indent1);
4798 /* Since function's argument's list are shared, reset the
4799 ARG_FINAL_P parameter that might have been set on some of this
4800 function parameters. */
4801 UNMARK_FINAL_PARMS (current_function_decl);
4803 /* So we don't have an irrelevant function declaration context for
4804 the next static block we'll see. */
4805 current_function_decl = NULL_TREE;
4808 /* Build a an error message for constructor circularity errors. */
4811 constructor_circularity_msg (from, to)
4814 static char string [4096];
4815 char *t = xstrdup (lang_printable_name (from, 0));
4816 sprintf (string, "`%s' invokes `%s'", t, lang_printable_name (to, 0));
4821 /* Verify a circular call to METH. Return 1 if an error is found, 0
4825 verify_constructor_circularity (meth, current)
4828 static tree list = NULL_TREE;
4829 static int initialized_p;
4832 /* If we haven't already registered LIST with the garbage collector,
4836 ggc_add_tree_root (&list, 1);
4840 for (c = DECL_CONSTRUCTOR_CALLS (current); c; c = TREE_CHAIN (c))
4842 if (TREE_VALUE (c) == meth)
4848 list = nreverse (list);
4849 for (liste = list; liste; liste = TREE_CHAIN (liste))
4852 (TREE_PURPOSE (TREE_PURPOSE (liste)), "%s",
4853 constructor_circularity_msg
4854 (TREE_VALUE (liste), TREE_VALUE (TREE_PURPOSE (liste))));
4858 t = xstrdup (lang_printable_name (meth, 0));
4859 parse_error_context (TREE_PURPOSE (c),
4860 "%s: recursive invocation of constructor `%s'",
4861 constructor_circularity_msg (current, meth), t);
4867 for (c = DECL_CONSTRUCTOR_CALLS (current); c; c = TREE_CHAIN (c))
4869 list = tree_cons (c, current, list);
4870 if (verify_constructor_circularity (meth, TREE_VALUE (c)))
4872 list = TREE_CHAIN (list);
4877 /* Check modifiers that can be declared but exclusively */
4880 check_modifiers_consistency (flags)
4884 tree cl = NULL_TREE;
4886 THIS_MODIFIER_ONLY (flags, ACC_PUBLIC, PUBLIC_TK, acc_count, cl);
4887 THIS_MODIFIER_ONLY (flags, ACC_PRIVATE, PRIVATE_TK, acc_count, cl);
4888 THIS_MODIFIER_ONLY (flags, ACC_PROTECTED, PROTECTED_TK, acc_count, cl);
4891 (cl, "Inconsistent member declaration. At most one of `public', `private', or `protected' may be specified");
4895 THIS_MODIFIER_ONLY (flags, ACC_FINAL, FINAL_TK, acc_count, cl);
4896 THIS_MODIFIER_ONLY (flags, ACC_VOLATILE, VOLATILE_TK, acc_count, cl);
4898 parse_error_context (cl,
4899 "Inconsistent member declaration. At most one of `final' or `volatile' may be specified");
4902 /* Check the methode header METH for abstract specifics features */
4905 check_abstract_method_header (meth)
4908 int flags = get_access_flags_from_decl (meth);
4910 OBSOLETE_MODIFIER_WARNING2 (MODIFIER_WFL (ABSTRACT_TK), flags,
4911 ACC_ABSTRACT, "abstract method",
4912 IDENTIFIER_POINTER (DECL_NAME (meth)));
4913 OBSOLETE_MODIFIER_WARNING2 (MODIFIER_WFL (PUBLIC_TK), flags,
4914 ACC_PUBLIC, "abstract method",
4915 IDENTIFIER_POINTER (DECL_NAME (meth)));
4917 check_modifiers ("Illegal modifier `%s' for interface method",
4918 flags, INTERFACE_METHOD_MODIFIERS);
4921 /* Create a FUNCTION_TYPE node and start augmenting it with the
4922 declared function arguments. Arguments type that can't be resolved
4923 are left as they are, but the returned node is marked as containing
4924 incomplete types. */
4927 method_declarator (id, list)
4930 tree arg_types = NULL_TREE, current, node;
4931 tree meth = make_node (FUNCTION_TYPE);
4934 patch_stage = JDEP_NO_PATCH;
4936 if (GET_CPC () == error_mark_node)
4937 return error_mark_node;
4939 /* If we're dealing with an inner class constructor, we hide the
4940 this$<n> decl in the name field of its parameter declaration. We
4941 also might have to hide the outer context local alias
4942 initializers. Not done when the class is a toplevel class. */
4943 if (PURE_INNER_CLASS_DECL_P (GET_CPC ())
4944 && EXPR_WFL_NODE (id) == GET_CPC_UN ())
4946 tree aliases_list, type, thisn;
4947 /* First the aliases, linked to the regular parameters */
4949 build_alias_initializer_parameter_list (AIPL_FUNCTION_DECLARATION,
4950 TREE_TYPE (GET_CPC ()),
4952 list = chainon (nreverse (aliases_list), list);
4955 type = TREE_TYPE (DECL_CONTEXT (GET_CPC ()));
4956 thisn = build_current_thisn (TREE_TYPE (GET_CPC ()));
4957 list = tree_cons (build_wfl_node (thisn), build_pointer_type (type),
4961 for (current = list; current; current = TREE_CHAIN (current))
4964 tree wfl_name = TREE_PURPOSE (current);
4965 tree type = TREE_VALUE (current);
4966 tree name = EXPR_WFL_NODE (wfl_name);
4967 tree already, arg_node;
4968 tree type_wfl = NULL_TREE;
4971 /* Obtain a suitable type for resolution, if necessary */
4972 SET_TYPE_FOR_RESOLUTION (type, type_wfl, must_chain);
4974 /* Process NAME, as it may specify extra dimension(s) for it */
4975 type = build_array_from_name (type, type_wfl, name, &name);
4976 EXPR_WFL_NODE (wfl_name) = name;
4978 real_type = GET_REAL_TYPE (type);
4979 if (TREE_CODE (real_type) == RECORD_TYPE)
4981 real_type = promote_type (real_type);
4982 if (TREE_CODE (type) == TREE_LIST)
4983 TREE_PURPOSE (type) = real_type;
4986 /* Check redefinition */
4987 for (already = arg_types; already; already = TREE_CHAIN (already))
4988 if (TREE_PURPOSE (already) == name)
4991 (wfl_name, "Variable `%s' is used more than once in the argument list of method `%s'",
4992 IDENTIFIER_POINTER (name),
4993 IDENTIFIER_POINTER (EXPR_WFL_NODE (id)));
4997 /* If we've an incomplete argument type, we know there is a location
4998 to patch when the type get resolved, later. */
5002 patch_stage = JDEP_METHOD;
5003 type = register_incomplete_type (patch_stage,
5004 type_wfl, wfl_name, type);
5005 jdep = CLASSD_LAST (ctxp->classd_list);
5006 JDEP_MISC (jdep) = id;
5009 /* The argument node: a name and a (possibly) incomplete type. */
5010 arg_node = build_tree_list (name, real_type);
5011 /* Remeber arguments declared final. */
5012 ARG_FINAL_P (arg_node) = ARG_FINAL_P (current);
5015 JDEP_GET_PATCH (jdep) = &TREE_VALUE (arg_node);
5016 TREE_CHAIN (arg_node) = arg_types;
5017 arg_types = arg_node;
5019 TYPE_ARG_TYPES (meth) = chainon (nreverse (arg_types), end_params_node);
5020 node = build_tree_list (id, meth);
5025 unresolved_type_p (wfl, returned)
5030 if (TREE_CODE (wfl) == EXPR_WITH_FILE_LOCATION)
5034 tree decl = IDENTIFIER_CLASS_VALUE (EXPR_WFL_NODE (wfl));
5035 if (decl && current_class && (decl == TYPE_NAME (current_class)))
5036 *returned = TREE_TYPE (decl);
5037 else if (GET_CPC_UN () == EXPR_WFL_NODE (wfl))
5038 *returned = TREE_TYPE (GET_CPC ());
5040 *returned = NULL_TREE;
5049 /* From NAME, build a qualified identifier node using the
5050 qualification from the current package definition. */
5053 parser_qualified_classname (name)
5056 tree nested_class_name;
5058 if ((nested_class_name = maybe_make_nested_class_name (name)))
5059 return nested_class_name;
5062 return merge_qualified_name (ctxp->package, name);
5067 /* Called once the type a interface extends is resolved. Returns 0 if
5068 everything is OK. */
5071 parser_check_super_interface (super_decl, this_decl, this_wfl)
5072 tree super_decl, this_decl, this_wfl;
5074 tree super_type = TREE_TYPE (super_decl);
5076 /* Has to be an interface */
5077 if (!CLASS_INTERFACE (super_decl))
5080 (this_wfl, "Can't use %s `%s' to implement/extend %s `%s'",
5081 (TYPE_ARRAY_P (super_type) ? "array" : "class"),
5082 IDENTIFIER_POINTER (DECL_NAME (super_decl)),
5083 (CLASS_INTERFACE (TYPE_NAME (TREE_TYPE (this_decl))) ?
5084 "interface" : "class"),
5085 IDENTIFIER_POINTER (DECL_NAME (this_decl)));
5089 /* Check top-level interface access. Inner classes are subject to member
5090 access rules (6.6.1). */
5091 if (! INNER_CLASS_P (super_type)
5092 && check_pkg_class_access (DECL_NAME (super_decl), lookup_cl (this_decl)))
5095 SOURCE_FRONTEND_DEBUG (("Completing interface %s with %s",
5096 IDENTIFIER_POINTER (DECL_NAME (this_decl)),
5097 IDENTIFIER_POINTER (DECL_NAME (super_decl))));
5101 /* Makes sure that SUPER_DECL is suitable to extend THIS_DECL. Returns
5102 0 if everthing is OK. */
5105 parser_check_super (super_decl, this_decl, wfl)
5106 tree super_decl, this_decl, wfl;
5108 tree super_type = TREE_TYPE (super_decl);
5110 /* SUPER should be a CLASS (neither an array nor an interface) */
5111 if (TYPE_ARRAY_P (super_type) || CLASS_INTERFACE (TYPE_NAME (super_type)))
5114 (wfl, "Class `%s' can't subclass %s `%s'",
5115 IDENTIFIER_POINTER (DECL_NAME (this_decl)),
5116 (CLASS_INTERFACE (TYPE_NAME (super_type)) ? "interface" : "array"),
5117 IDENTIFIER_POINTER (DECL_NAME (super_decl)));
5121 if (CLASS_FINAL (TYPE_NAME (super_type)))
5123 parse_error_context (wfl, "Can't subclass final classes: %s",
5124 IDENTIFIER_POINTER (DECL_NAME (super_decl)));
5128 /* Check top-level class scope. Inner classes are subject to member access
5130 if (! INNER_CLASS_P (super_type)
5131 && (check_pkg_class_access (DECL_NAME (super_decl), wfl)))
5134 SOURCE_FRONTEND_DEBUG (("Completing class %s with %s",
5135 IDENTIFIER_POINTER (DECL_NAME (this_decl)),
5136 IDENTIFIER_POINTER (DECL_NAME (super_decl))));
5140 /* Create a new dependency list and link it (in a LIFO manner) to the
5141 CTXP list of type dependency list. */
5144 create_jdep_list (ctxp)
5145 struct parser_ctxt *ctxp;
5147 jdeplist *new = (jdeplist *)xmalloc (sizeof (jdeplist));
5148 new->first = new->last = NULL;
5149 new->next = ctxp->classd_list;
5150 ctxp->classd_list = new;
5154 reverse_jdep_list (ctxp)
5155 struct parser_ctxt *ctxp;
5157 register jdeplist *prev = NULL, *current, *next;
5158 for (current = ctxp->classd_list; current; current = next)
5160 next = current->next;
5161 current->next = prev;
5167 /* Create a fake pointer based on the ID stored in
5168 TYPE_NAME. TYPE_NAME can be a WFL or a incomplete type asking to be
5169 registered again. */
5172 obtain_incomplete_type (type_name)
5175 tree ptr = NULL_TREE, name;
5177 if (TREE_CODE (type_name) == EXPR_WITH_FILE_LOCATION)
5178 name = EXPR_WFL_NODE (type_name);
5179 else if (INCOMPLETE_TYPE_P (type_name))
5180 name = TYPE_NAME (type_name);
5184 BUILD_PTR_FROM_NAME (ptr, name);
5190 /* Register a incomplete type whose name is WFL. Reuse PTR if PTR is
5191 non NULL instead of computing a new fake type based on WFL. The new
5192 dependency is inserted in the current type dependency list, in FIFO
5196 register_incomplete_type (kind, wfl, decl, ptr)
5198 tree wfl, decl, ptr;
5200 jdep *new = (jdep *)xmalloc (sizeof (jdep));
5202 if (!ptr && kind != JDEP_METHOD_END) /* JDEP_METHOD_END is a mere marker */
5203 ptr = obtain_incomplete_type (wfl);
5205 JDEP_KIND (new) = kind;
5206 JDEP_DECL (new) = decl;
5207 JDEP_TO_RESOLVE (new) = ptr;
5208 JDEP_WFL (new) = wfl;
5209 JDEP_CHAIN (new) = NULL;
5210 JDEP_MISC (new) = NULL_TREE;
5211 /* For some dependencies, set the enclosing class of the current
5212 class to be the enclosing context */
5213 if ((kind == JDEP_SUPER || kind == JDEP_INTERFACE
5214 || kind == JDEP_ANONYMOUS)
5215 && GET_ENCLOSING_CPC ())
5216 JDEP_ENCLOSING (new) = TREE_VALUE (GET_ENCLOSING_CPC ());
5218 JDEP_ENCLOSING (new) = GET_CPC ();
5219 JDEP_GET_PATCH (new) = (tree *)NULL;
5221 JDEP_INSERT (ctxp->classd_list, new);
5226 /* This checks for circular references with innerclasses. We start
5227 from SOURCE and should never reach TARGET. Extended/implemented
5228 types in SOURCE have their enclosing context checked not to reach
5229 TARGET. When the last enclosing context of SOURCE is reached, its
5230 extended/implemented types are also checked not to reach TARGET.
5231 In case of error, WFL of the offending type is returned; NULL_TREE
5235 check_inner_circular_reference (source, target)
5239 tree basetype_vec = TYPE_BINFO_BASETYPES (source);
5246 for (i = 0; i < TREE_VEC_LENGTH (basetype_vec); i++)
5248 tree su = BINFO_TYPE (TREE_VEC_ELT (basetype_vec, i));
5250 if (inherits_from_p (su, target))
5251 return lookup_cl (TYPE_NAME (su));
5253 for (ctx = DECL_CONTEXT (TYPE_NAME (su)); ctx; ctx = DECL_CONTEXT (ctx))
5255 /* An enclosing context shouldn't be TARGET */
5256 if (ctx == TYPE_NAME (target))
5257 return lookup_cl (TYPE_NAME (su));
5259 /* When we reach the enclosing last context, start a check
5260 on it, with the same target */
5261 if (! DECL_CONTEXT (ctx) &&
5262 (cl = check_inner_circular_reference (TREE_TYPE (ctx), target)))
5269 /* Explore TYPE's `extends' clause member(s) and return the WFL of the
5270 offending type if a circularity is detected. NULL_TREE is returned
5271 otherwise. TYPE can be an interface or a class. */
5274 check_circular_reference (type)
5277 tree basetype_vec = TYPE_BINFO_BASETYPES (type);
5283 if (! CLASS_INTERFACE (TYPE_NAME (type)))
5285 if (inherits_from_p (CLASSTYPE_SUPER (type), type))
5286 return lookup_cl (TYPE_NAME (type));
5290 for (i = 0; i < TREE_VEC_LENGTH (basetype_vec); i++)
5292 tree vec_elt = TREE_VEC_ELT (basetype_vec, i);
5293 if (vec_elt && BINFO_TYPE (vec_elt) != object_type_node
5294 && interface_of_p (type, BINFO_TYPE (vec_elt)))
5295 return lookup_cl (TYPE_NAME (BINFO_TYPE (vec_elt)));
5301 java_check_circular_reference ()
5304 for (current = ctxp->class_list; current; current = TREE_CHAIN (current))
5306 tree type = TREE_TYPE (current);
5309 cl = check_circular_reference (type);
5311 cl = check_inner_circular_reference (type, type);
5313 parse_error_context (cl, "Cyclic class inheritance%s",
5314 (cyclic_inheritance_report ?
5315 cyclic_inheritance_report : ""));
5319 /* Augment the parameter list PARM with parameters crafted to
5320 initialize outer context locals aliases. Through ARTIFICIAL, a
5321 count is kept of the number of crafted parameters. MODE governs
5322 what eventually gets created: something suitable for a function
5323 creation or a function invocation, either the constructor or
5327 build_alias_initializer_parameter_list (mode, class_type, parm, artificial)
5329 tree class_type, parm;
5333 tree additional_parms = NULL_TREE;
5335 for (field = TYPE_FIELDS (class_type); field; field = TREE_CHAIN (field))
5336 if (FIELD_LOCAL_ALIAS (field))
5338 const char *buffer = IDENTIFIER_POINTER (DECL_NAME (field));
5339 tree purpose = NULL_TREE, value = NULL_TREE, name = NULL_TREE;
5344 case AIPL_FUNCTION_DECLARATION:
5345 MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR (mangled_id,
5347 purpose = build_wfl_node (mangled_id);
5348 if (TREE_CODE (TREE_TYPE (field)) == POINTER_TYPE)
5349 value = build_wfl_node (TYPE_NAME (TREE_TYPE (field)));
5351 value = TREE_TYPE (field);
5354 case AIPL_FUNCTION_CREATION:
5355 MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR (purpose,
5357 value = TREE_TYPE (field);
5360 case AIPL_FUNCTION_FINIT_INVOCATION:
5361 MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR (mangled_id,
5363 /* Now, this is wrong. purpose should always be the NAME
5364 of something and value its matching value (decl, type,
5365 etc...) FIXME -- but there is a lot to fix. */
5367 /* When invoked for this kind of operation, we already
5368 know whether a field is used or not. */
5369 purpose = TREE_TYPE (field);
5370 value = build_wfl_node (mangled_id);
5373 case AIPL_FUNCTION_CTOR_INVOCATION:
5374 /* There are two case: the constructor invokation happends
5375 outside the local inner, in which case, locales from the outer
5376 context are directly used.
5378 Otherwise, we fold to using the alias directly. */
5379 if (class_type == current_class)
5383 name = get_identifier (&buffer[4]);
5384 value = IDENTIFIER_LOCAL_VALUE (name);
5388 additional_parms = tree_cons (purpose, value, additional_parms);
5392 if (additional_parms)
5394 if (ANONYMOUS_CLASS_P (class_type)
5395 && mode == AIPL_FUNCTION_CTOR_INVOCATION)
5396 additional_parms = nreverse (additional_parms);
5397 parm = chainon (additional_parms, parm);
5403 /* Craft a constructor for CLASS_DECL -- what we should do when none
5404 where found. ARGS is non NULL when a special signature must be
5405 enforced. This is the case for anonymous classes. */
5408 craft_constructor (class_decl, args)
5409 tree class_decl, args;
5411 tree class_type = TREE_TYPE (class_decl);
5412 tree parm = NULL_TREE;
5413 int flags = (get_access_flags_from_decl (class_decl) & ACC_PUBLIC ?
5415 int i = 0, artificial = 0;
5416 tree decl, ctor_name;
5419 /* The constructor name is <init> unless we're dealing with an
5420 anonymous class, in which case the name will be fixed after having
5422 if (ANONYMOUS_CLASS_P (class_type))
5423 ctor_name = DECL_NAME (class_decl);
5425 ctor_name = init_identifier_node;
5427 /* If we're dealing with an inner class constructor, we hide the
5428 this$<n> decl in the name field of its parameter declaration. */
5429 if (PURE_INNER_CLASS_TYPE_P (class_type))
5431 tree type = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (class_type)));
5432 parm = tree_cons (build_current_thisn (class_type),
5433 build_pointer_type (type), parm);
5435 /* Some more arguments to be hidden here. The values of the local
5436 variables of the outer context that the inner class needs to see. */
5437 parm = build_alias_initializer_parameter_list (AIPL_FUNCTION_CREATION,
5442 /* Then if there are any args to be enforced, enforce them now */
5443 for (; args && args != end_params_node; args = TREE_CHAIN (args))
5445 sprintf (buffer, "parm%d", i++);
5446 parm = tree_cons (get_identifier (buffer), TREE_VALUE (args), parm);
5449 CRAFTED_PARAM_LIST_FIXUP (parm);
5450 decl = create_artificial_method (class_type, flags, void_type_node,
5452 fix_method_argument_names (parm, decl);
5453 /* Now, mark the artificial parameters. */
5454 DECL_FUNCTION_NAP (decl) = artificial;
5455 DECL_FUNCTION_SYNTHETIC_CTOR (decl) = DECL_CONSTRUCTOR_P (decl) = 1;
5459 /* Fix the constructors. This will be called right after circular
5460 references have been checked. It is necessary to fix constructors
5461 early even if no code generation will take place for that class:
5462 some generated constructor might be required by the class whose
5463 compilation triggered this one to be simply loaded. */
5466 java_fix_constructors ()
5470 for (current = ctxp->class_list; current; current = TREE_CHAIN (current))
5472 tree class_type = TREE_TYPE (current);
5476 if (CLASS_INTERFACE (TYPE_NAME (class_type)))
5479 current_class = class_type;
5480 for (decl = TYPE_METHODS (class_type); decl; decl = TREE_CHAIN (decl))
5482 if (DECL_CONSTRUCTOR_P (decl))
5484 fix_constructors (decl);
5489 /* Anonymous class constructor can't be generated that early. */
5490 if (!saw_ctor && !ANONYMOUS_CLASS_P (class_type))
5491 craft_constructor (current, NULL_TREE);
5495 /* safe_layout_class just makes sure that we can load a class without
5496 disrupting the current_class, input_file, lineno, etc, information
5497 about the class processed currently. */
5500 safe_layout_class (class)
5503 tree save_current_class = current_class;
5504 const char *save_input_filename = input_filename;
5505 int save_lineno = lineno;
5507 layout_class (class);
5509 current_class = save_current_class;
5510 input_filename = save_input_filename;
5511 lineno = save_lineno;
5515 jdep_resolve_class (dep)
5520 if (JDEP_RESOLVED_P (dep))
5521 decl = JDEP_RESOLVED_DECL (dep);
5524 decl = resolve_class (JDEP_ENCLOSING (dep), JDEP_TO_RESOLVE (dep),
5525 JDEP_DECL (dep), JDEP_WFL (dep));
5526 JDEP_RESOLVED (dep, decl);
5530 complete_class_report_errors (dep);
5531 else if (PURE_INNER_CLASS_DECL_P (decl))
5533 tree inner = TREE_TYPE (decl);
5534 if (! CLASS_LOADED_P (inner))
5536 safe_layout_class (inner);
5537 if (TYPE_SIZE (inner) == error_mark_node)
5538 TYPE_SIZE (inner) = NULL_TREE;
5540 check_inner_class_access (decl, JDEP_ENCLOSING (dep), JDEP_WFL (dep));
5545 /* Complete unsatisfied class declaration and their dependencies */
5548 java_complete_class ()
5555 /* Process imports */
5558 /* Rever things so we have the right order */
5559 ctxp->class_list = nreverse (ctxp->class_list);
5560 ctxp->classd_list = reverse_jdep_list (ctxp);
5562 for (cclassd = ctxp->classd_list, cclass = ctxp->class_list;
5564 cclass = TREE_CHAIN (cclass), cclassd = CLASSD_CHAIN (cclassd))
5567 for (dep = CLASSD_FIRST (cclassd); dep; dep = JDEP_CHAIN (dep))
5570 if (!(decl = jdep_resolve_class (dep)))
5573 /* Now it's time to patch */
5574 switch (JDEP_KIND (dep))
5577 /* Simply patch super */
5578 if (parser_check_super (decl, JDEP_DECL (dep), JDEP_WFL (dep)))
5580 BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO
5581 (TREE_TYPE (JDEP_DECL (dep)))), 0)) = TREE_TYPE (decl);
5586 /* We do part of the job done in add_field */
5587 tree field_decl = JDEP_DECL (dep);
5588 tree field_type = TREE_TYPE (decl);
5589 if (TREE_CODE (field_type) == RECORD_TYPE)
5590 field_type = promote_type (field_type);
5591 TREE_TYPE (field_decl) = field_type;
5592 DECL_ALIGN (field_decl) = 0;
5593 DECL_USER_ALIGN (field_decl) = 0;
5594 layout_decl (field_decl, 0);
5595 SOURCE_FRONTEND_DEBUG
5596 (("Completed field/var decl `%s' with `%s'",
5597 IDENTIFIER_POINTER (DECL_NAME (field_decl)),
5598 IDENTIFIER_POINTER (DECL_NAME (decl))));
5601 case JDEP_METHOD: /* We start patching a method */
5602 case JDEP_METHOD_RETURN:
5608 type = TREE_TYPE(decl);
5609 if (TREE_CODE (type) == RECORD_TYPE)
5610 type = promote_type (type);
5611 JDEP_APPLY_PATCH (dep, type);
5612 SOURCE_FRONTEND_DEBUG
5613 (((JDEP_KIND (dep) == JDEP_METHOD_RETURN ?
5614 "Completing fct `%s' with ret type `%s'":
5615 "Completing arg `%s' with type `%s'"),
5616 IDENTIFIER_POINTER (EXPR_WFL_NODE
5617 (JDEP_DECL_WFL (dep))),
5618 IDENTIFIER_POINTER (DECL_NAME (decl))));
5622 dep = JDEP_CHAIN (dep);
5623 if (JDEP_KIND (dep) == JDEP_METHOD_END)
5626 decl = jdep_resolve_class (dep);
5630 tree mdecl = JDEP_DECL (dep), signature;
5631 /* Recompute and reset the signature, check first that
5632 all types are now defined. If they're not,
5633 dont build the signature. */
5634 if (check_method_types_complete (mdecl))
5636 signature = build_java_signature (TREE_TYPE (mdecl));
5637 set_java_signature (TREE_TYPE (mdecl), signature);
5644 case JDEP_INTERFACE:
5645 if (parser_check_super_interface (decl, JDEP_DECL (dep),
5648 parser_add_interface (JDEP_DECL (dep), decl, JDEP_WFL (dep));
5653 type = TREE_TYPE(decl);
5654 if (TREE_CODE (type) == RECORD_TYPE)
5655 type = promote_type (type);
5656 JDEP_APPLY_PATCH (dep, type);
5660 JDEP_APPLY_PATCH (dep, TREE_TYPE (decl));
5661 SOURCE_FRONTEND_DEBUG
5662 (("Completing a random type dependency on a '%s' node",
5663 tree_code_name [TREE_CODE (JDEP_DECL (dep))]));
5666 case JDEP_EXCEPTION:
5667 JDEP_APPLY_PATCH (dep, TREE_TYPE (decl));
5668 SOURCE_FRONTEND_DEBUG
5669 (("Completing `%s' `throws' argument node",
5670 IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep)))));
5673 case JDEP_ANONYMOUS:
5674 patch_anonymous_class (decl, JDEP_DECL (dep), JDEP_WFL (dep));
5685 /* Resolve class CLASS_TYPE. Handle the case of trying to resolve an
5689 resolve_class (enclosing, class_type, decl, cl)
5690 tree enclosing, class_type, decl, cl;
5692 const char *name = IDENTIFIER_POINTER (TYPE_NAME (class_type));
5693 const char *base = name;
5694 tree resolved_type = TREE_TYPE (class_type);
5695 tree resolved_type_decl;
5697 if (resolved_type != NULL_TREE)
5699 tree resolved_type_decl = TYPE_NAME (resolved_type);
5700 if (resolved_type_decl == NULL_TREE
5701 || TREE_CODE (resolved_type_decl) == IDENTIFIER_NODE)
5703 resolved_type_decl = build_decl (TYPE_DECL,
5704 TYPE_NAME (class_type),
5707 return resolved_type_decl;
5710 /* 1- Check to see if we have an array. If true, find what we really
5712 while (name[0] == '[')
5716 TYPE_NAME (class_type) = get_identifier (name);
5717 WFL_STRIP_BRACKET (cl, cl);
5720 /* 2- Resolve the bare type */
5721 if (!(resolved_type_decl = do_resolve_class (enclosing, class_type,
5724 resolved_type = TREE_TYPE (resolved_type_decl);
5726 /* 3- If we have and array, reconstruct the array down to its nesting */
5729 while (base != name)
5731 resolved_type = build_java_array_type (resolved_type, -1);
5734 /* A TYPE_NAME that is a TYPE_DECL was set in
5735 build_java_array_type, return it. */
5736 resolved_type_decl = TYPE_NAME (resolved_type);
5738 TREE_TYPE (class_type) = resolved_type;
5739 return resolved_type_decl;
5742 /* Effectively perform the resolution of class CLASS_TYPE. DECL or CL
5743 are used to report error messages. Do not try to replace TYPE_NAME
5744 (class_type) by a variable, since it is changed by
5745 find_in_imports{_on_demand} and (but it doesn't really matter)
5746 qualify_and_find. */
5749 do_resolve_class (enclosing, class_type, decl, cl)
5750 tree enclosing, class_type, decl, cl;
5752 tree new_class_decl = NULL_TREE, super = NULL_TREE;
5753 struct hash_table _ht, *circularity_hash = &_ht;
5755 /* This hash table is used to register the classes we're going
5756 through when searching the current class as an inner class, in
5757 order to detect circular references. Remember to free it before
5758 returning the section 0- of this function. */
5759 hash_table_init (circularity_hash, hash_newfunc,
5760 java_hash_hash_tree_node, java_hash_compare_tree_node);
5762 /* 0- Search in the current class as an inner class.
5763 Maybe some code here should be added to load the class or
5764 something, at least if the class isn't an inner class and ended
5765 being loaded from class file. FIXME. */
5768 new_class_decl = resolve_inner_class (circularity_hash, cl, &enclosing,
5769 &super, class_type);
5773 /* If we haven't found anything because SUPER reached Object and
5774 ENCLOSING happens to be an innerclass, try the enclosing context. */
5775 if ((!super || super == object_type_node) &&
5776 enclosing && INNER_CLASS_DECL_P (enclosing))
5777 enclosing = DECL_CONTEXT (enclosing);
5779 enclosing = NULL_TREE;
5782 hash_table_free (circularity_hash);
5785 return new_class_decl;
5787 /* 1- Check for the type in single imports. This will change
5788 TYPE_NAME() if something relevant is found */
5789 find_in_imports (class_type);
5791 /* 2- And check for the type in the current compilation unit */
5792 if ((new_class_decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type))))
5794 if (!CLASS_LOADED_P (TREE_TYPE (new_class_decl)) &&
5795 !CLASS_FROM_SOURCE_P (TREE_TYPE (new_class_decl)))
5796 load_class (TYPE_NAME (class_type), 0);
5797 return IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type));
5800 /* 3- Search according to the current package definition */
5801 if (!QUALIFIED_P (TYPE_NAME (class_type)))
5803 if ((new_class_decl = qualify_and_find (class_type, ctxp->package,
5804 TYPE_NAME (class_type))))
5805 return new_class_decl;
5808 /* 4- Check the import on demands. Don't allow bar.baz to be
5809 imported from foo.* */
5810 if (!QUALIFIED_P (TYPE_NAME (class_type)))
5811 if (find_in_imports_on_demand (class_type))
5814 /* If found in find_in_imports_on_demant, the type has already been
5816 if ((new_class_decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type))))
5817 return new_class_decl;
5819 /* 5- Try with a name qualified with the package name we've seen so far */
5820 if (!QUALIFIED_P (TYPE_NAME (class_type)))
5824 /* If there is a current package (ctxp->package), it's the first
5825 element of package_list and we can skip it. */
5826 for (package = (ctxp->package ?
5827 TREE_CHAIN (package_list) : package_list);
5828 package; package = TREE_CHAIN (package))
5829 if ((new_class_decl = qualify_and_find (class_type,
5830 TREE_PURPOSE (package),
5831 TYPE_NAME (class_type))))
5832 return new_class_decl;
5835 /* 5- Check an other compilation unit that bears the name of type */
5836 load_class (TYPE_NAME (class_type), 0);
5839 cl = lookup_cl (decl);
5841 /* If we don't have a value for CL, then we're being called recursively.
5842 We can't check package access just yet, but it will be taken care of
5846 if (check_pkg_class_access (TYPE_NAME (class_type), cl))
5850 /* 6- Last call for a resolution */
5851 return IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type));
5855 qualify_and_find (class_type, package, name)
5856 tree class_type, package, name;
5858 tree new_qualified = merge_qualified_name (package, name);
5859 tree new_class_decl;
5861 if (!IDENTIFIER_CLASS_VALUE (new_qualified))
5862 load_class (new_qualified, 0);
5863 if ((new_class_decl = IDENTIFIER_CLASS_VALUE (new_qualified)))
5865 if (!CLASS_LOADED_P (TREE_TYPE (new_class_decl)) &&
5866 !CLASS_FROM_SOURCE_P (TREE_TYPE (new_class_decl)))
5867 load_class (new_qualified, 0);
5868 TYPE_NAME (class_type) = new_qualified;
5869 return IDENTIFIER_CLASS_VALUE (new_qualified);
5874 /* Resolve NAME and lay it out (if not done and if not the current
5875 parsed class). Return a decl node. This function is meant to be
5876 called when type resolution is necessary during the walk pass. */
5879 resolve_and_layout (something, cl)
5883 tree decl, decl_type;
5885 /* Don't do that on the current class */
5886 if (something == current_class)
5887 return TYPE_NAME (current_class);
5889 /* Don't do anything for void and other primitive types */
5890 if (JPRIMITIVE_TYPE_P (something) || something == void_type_node)
5893 /* Pointer types can be reall pointer types or fake pointers. When
5894 finding a real pointer, recheck for primitive types */
5895 if (TREE_CODE (something) == POINTER_TYPE)
5897 if (TREE_TYPE (something))
5899 something = TREE_TYPE (something);
5900 if (JPRIMITIVE_TYPE_P (something) || something == void_type_node)
5904 something = TYPE_NAME (something);
5907 /* Don't do anything for arrays of primitive types */
5908 if (TREE_CODE (something) == RECORD_TYPE && TYPE_ARRAY_P (something)
5909 && JPRIMITIVE_TYPE_P (TYPE_ARRAY_ELEMENT (something)))
5912 /* Something might be a WFL */
5913 if (TREE_CODE (something) == EXPR_WITH_FILE_LOCATION)
5914 something = EXPR_WFL_NODE (something);
5916 /* Otherwise, if something is not and IDENTIFIER_NODE, it can be a a
5917 TYPE_DECL or a real TYPE */
5918 else if (TREE_CODE (something) != IDENTIFIER_NODE)
5919 something = (TREE_CODE (TYPE_NAME (something)) == TYPE_DECL ?
5920 DECL_NAME (TYPE_NAME (something)) : TYPE_NAME (something));
5922 if (!(decl = resolve_no_layout (something, cl)))
5925 /* Resolve and layout if necessary */
5926 decl_type = TREE_TYPE (decl);
5927 layout_class_methods (decl_type);
5929 if (CLASS_FROM_SOURCE_P (decl_type))
5930 java_check_methods (decl);
5931 /* Layout the type if necessary */
5932 if (decl_type != current_class && !CLASS_LOADED_P (decl_type))
5933 safe_layout_class (decl_type);
5938 /* Resolve a class, returns its decl but doesn't perform any
5939 layout. The current parsing context is saved and restored */
5942 resolve_no_layout (name, cl)
5946 BUILD_PTR_FROM_NAME (ptr, name);
5947 java_parser_context_save_global ();
5948 decl = resolve_class (TYPE_NAME (current_class), ptr, NULL_TREE, cl);
5949 java_parser_context_restore_global ();
5954 /* Called when reporting errors. Skip leader '[' in a complex array
5955 type description that failed to be resolved. */
5958 purify_type_name (name)
5961 while (*name && *name == '[')
5966 /* The type CURRENT refers to can't be found. We print error messages. */
5969 complete_class_report_errors (dep)
5974 if (!JDEP_WFL (dep))
5977 name = IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep)));
5978 switch (JDEP_KIND (dep))
5982 (JDEP_WFL (dep), "Superclass `%s' of class `%s' not found",
5983 purify_type_name (name),
5984 IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep))));
5988 (JDEP_WFL (dep), "Type `%s' not found in declaration of field `%s'",
5989 purify_type_name (name),
5990 IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep))));
5992 case JDEP_METHOD: /* Covers arguments */
5994 (JDEP_WFL (dep), "Type `%s' not found in the declaration of the argument `%s' of method `%s'",
5995 purify_type_name (name),
5996 IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_DECL_WFL (dep))),
5997 IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_MISC (dep))));
5999 case JDEP_METHOD_RETURN: /* Covers return type */
6001 (JDEP_WFL (dep), "Type `%s' not found in the declaration of the return type of method `%s'",
6002 purify_type_name (name),
6003 IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_DECL_WFL (dep))));
6005 case JDEP_INTERFACE:
6007 (JDEP_WFL (dep), "Superinterface `%s' of %s `%s' not found",
6008 IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep))),
6009 (CLASS_OR_INTERFACE (JDEP_DECL (dep), "class", "interface")),
6010 IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep))));
6014 (JDEP_WFL (dep), "Type `%s' not found in the declaration of the local variable `%s'",
6015 purify_type_name (IDENTIFIER_POINTER
6016 (EXPR_WFL_NODE (JDEP_WFL (dep)))),
6017 IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep))));
6019 case JDEP_EXCEPTION: /* As specified by `throws' */
6021 (JDEP_WFL (dep), "Class `%s' not found in `throws'",
6022 IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep))));
6025 /* Fix for -Wall. Just break doing nothing. The error will be
6031 /* Return a static string containing the DECL prototype string. If
6032 DECL is a constructor, use the class name instead of the form
6036 get_printable_method_name (decl)
6039 const char *to_return;
6040 tree name = NULL_TREE;
6042 if (DECL_CONSTRUCTOR_P (decl))
6044 name = DECL_NAME (decl);
6045 DECL_NAME (decl) = DECL_NAME (TYPE_NAME (DECL_CONTEXT (decl)));
6048 to_return = lang_printable_name (decl, 0);
6049 if (DECL_CONSTRUCTOR_P (decl))
6050 DECL_NAME (decl) = name;
6055 /* Track method being redefined inside the same class. As a side
6056 effect, set DECL_NAME to an IDENTIFIER (prior entering this
6057 function it's a FWL, so we can track errors more accurately.) */
6060 check_method_redefinition (class, method)
6065 /* There's no need to verify <clinit> and finit$ and instinit$ */
6066 if (DECL_CLINIT_P (method)
6067 || DECL_FINIT_P (method) || DECL_INSTINIT_P (method))
6070 sig = TYPE_ARGUMENT_SIGNATURE (TREE_TYPE (method));
6071 for (redef = TYPE_METHODS (class); redef; redef = TREE_CHAIN (redef))
6073 if (redef == method)
6075 if (DECL_NAME (redef) == DECL_NAME (method)
6076 && sig == TYPE_ARGUMENT_SIGNATURE (TREE_TYPE (redef))
6077 && !DECL_ARTIFICIAL (method))
6080 (DECL_FUNCTION_WFL (method), "Duplicate %s declaration `%s'",
6081 (DECL_CONSTRUCTOR_P (redef) ? "constructor" : "method"),
6082 get_printable_method_name (redef));
6089 /* Return 1 if check went ok, 0 otherwise. */
6091 check_abstract_method_definitions (do_interface, class_decl, type)
6093 tree class_decl, type;
6095 tree class = TREE_TYPE (class_decl);
6096 tree method, end_type;
6099 end_type = (do_interface ? object_type_node : type);
6100 for (method = TYPE_METHODS (type); method; method = TREE_CHAIN (method))
6102 tree other_super, other_method, method_sig, method_name;
6104 int end_type_reached = 0;
6106 if (!METHOD_ABSTRACT (method) || METHOD_FINAL (method))
6109 /* Now verify that somewhere in between TYPE and CLASS,
6110 abstract method METHOD gets a non abstract definition
6111 that is inherited by CLASS. */
6113 method_sig = build_java_signature (TREE_TYPE (method));
6114 method_name = DECL_NAME (method);
6115 if (TREE_CODE (method_name) == EXPR_WITH_FILE_LOCATION)
6116 method_name = EXPR_WFL_NODE (method_name);
6118 other_super = class;
6120 if (other_super == end_type)
6121 end_type_reached = 1;
6124 for (other_method = TYPE_METHODS (other_super); other_method;
6125 other_method = TREE_CHAIN (other_method))
6127 tree s = build_java_signature (TREE_TYPE (other_method));
6128 tree other_name = DECL_NAME (other_method);
6130 if (TREE_CODE (other_name) == EXPR_WITH_FILE_LOCATION)
6131 other_name = EXPR_WFL_NODE (other_name);
6132 if (!DECL_CLINIT_P (other_method)
6133 && !DECL_CONSTRUCTOR_P (other_method)
6134 && method_name == other_name
6136 && !METHOD_ABSTRACT (other_method))
6142 other_super = CLASSTYPE_SUPER (other_super);
6143 } while (!end_type_reached);
6145 /* Report that abstract METHOD didn't find an implementation
6146 that CLASS can use. */
6149 char *t = xstrdup (lang_printable_name
6150 (TREE_TYPE (TREE_TYPE (method)), 0));
6151 tree ccn = DECL_NAME (TYPE_NAME (DECL_CONTEXT (method)));
6154 (lookup_cl (class_decl),
6155 "Class `%s' doesn't define the abstract method `%s %s' from %s `%s'. This method must be defined or %s `%s' must be declared abstract",
6156 IDENTIFIER_POINTER (DECL_NAME (class_decl)),
6157 t, lang_printable_name (method, 0),
6158 (CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (method))) ?
6159 "interface" : "class"),
6160 IDENTIFIER_POINTER (ccn),
6161 (CLASS_INTERFACE (class_decl) ? "interface" : "class"),
6162 IDENTIFIER_POINTER (DECL_NAME (class_decl)));
6168 if (ok && do_interface)
6170 /* Check for implemented interfaces. */
6172 tree vector = TYPE_BINFO_BASETYPES (type);
6173 for (i = 1; ok && vector && i < TREE_VEC_LENGTH (vector); i++)
6175 tree super = BINFO_TYPE (TREE_VEC_ELT (vector, i));
6176 ok = check_abstract_method_definitions (1, class_decl, super);
6183 /* Check that CLASS_DECL somehow implements all inherited abstract
6187 java_check_abstract_method_definitions (class_decl)
6190 tree class = TREE_TYPE (class_decl);
6194 if (CLASS_ABSTRACT (class_decl))
6197 /* Check for inherited types */
6200 super = CLASSTYPE_SUPER (super);
6201 check_abstract_method_definitions (0, class_decl, super);
6202 } while (super != object_type_node);
6204 /* Check for implemented interfaces. */
6205 vector = TYPE_BINFO_BASETYPES (class);
6206 for (i = 1; i < TREE_VEC_LENGTH (vector); i++)
6208 super = BINFO_TYPE (TREE_VEC_ELT (vector, i));
6209 check_abstract_method_definitions (1, class_decl, super);
6213 /* Check all the types method DECL uses and return 1 if all of them
6214 are now complete, 0 otherwise. This is used to check whether its
6215 safe to build a method signature or not. */
6218 check_method_types_complete (decl)
6221 tree type = TREE_TYPE (decl);
6224 if (!INCOMPLETE_TYPE_P (TREE_TYPE (type)))
6227 args = TYPE_ARG_TYPES (type);
6228 if (TREE_CODE (type) == METHOD_TYPE)
6229 args = TREE_CHAIN (args);
6230 for (; args != end_params_node; args = TREE_CHAIN (args))
6231 if (INCOMPLETE_TYPE_P (TREE_VALUE (args)))
6237 /* Visible interface to check methods contained in CLASS_DECL */
6240 java_check_methods (class_decl)
6243 if (CLASS_METHOD_CHECKED_P (TREE_TYPE (class_decl)))
6246 if (CLASS_INTERFACE (class_decl))
6247 java_check_abstract_methods (class_decl);
6249 java_check_regular_methods (class_decl);
6251 CLASS_METHOD_CHECKED_P (TREE_TYPE (class_decl)) = 1;
6254 /* Check all the methods of CLASS_DECL. Methods are first completed
6255 then checked according to regular method existance rules. If no
6256 constructor for CLASS_DECL were encountered, then build its
6260 java_check_regular_methods (class_decl)
6263 int saw_constructor = ANONYMOUS_CLASS_P (TREE_TYPE (class_decl));
6265 tree class = CLASS_TO_HANDLE_TYPE (TREE_TYPE (class_decl));
6266 tree found = NULL_TREE;
6269 /* It is not necessary to check methods defined in java.lang.Object */
6270 if (class == object_type_node)
6273 if (!TYPE_NVIRTUALS (class))
6274 TYPE_METHODS (class) = nreverse (TYPE_METHODS (class));
6276 /* Should take interfaces into account. FIXME */
6277 for (method = TYPE_METHODS (class); method; method = TREE_CHAIN (method))
6280 tree method_wfl = DECL_FUNCTION_WFL (method);
6283 /* Check for redefinitions */
6284 if (check_method_redefinition (class, method))
6287 /* If we see one constructor a mark so we don't generate the
6288 default one. Also skip other verifications: constructors
6289 can't be inherited hence hiden or overriden */
6290 if (DECL_CONSTRUCTOR_P (method))
6292 saw_constructor = 1;
6296 /* We verify things thrown by the method. They must inherits from
6297 java.lang.Throwable */
6298 for (mthrows = DECL_FUNCTION_THROWS (method);
6299 mthrows; mthrows = TREE_CHAIN (mthrows))
6301 if (!inherits_from_p (TREE_VALUE (mthrows), throwable_type_node))
6303 (TREE_PURPOSE (mthrows), "Class `%s' in `throws' clause must be a subclass of class `java.lang.Throwable'",
6305 (DECL_NAME (TYPE_NAME (TREE_VALUE (mthrows)))));
6308 sig = build_java_argument_signature (TREE_TYPE (method));
6309 found = lookup_argument_method2 (class, DECL_NAME (method), sig);
6311 /* Inner class can't declare static methods */
6312 if (METHOD_STATIC (method) && !TOPLEVEL_CLASS_DECL_P (class_decl))
6314 char *t = xstrdup (lang_printable_name (class, 0));
6316 (method_wfl, "Method `%s' can't be static in inner class `%s'. Only members of interfaces and top-level classes can be static",
6317 lang_printable_name (method, 0), t);
6321 /* Nothing overrides or it's a private method. */
6324 if (METHOD_PRIVATE (found))
6330 /* If `found' is declared in an interface, make sure the
6331 modifier matches. */
6332 if (CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (found)))
6333 && clinit_identifier_node != DECL_NAME (found)
6334 && !METHOD_PUBLIC (method))
6336 tree found_decl = TYPE_NAME (DECL_CONTEXT (found));
6337 parse_error_context (method_wfl, "Class `%s' must override `%s' with a public method in order to implement interface `%s'",
6338 IDENTIFIER_POINTER (DECL_NAME (class_decl)),
6339 lang_printable_name (method, 0),
6340 IDENTIFIER_POINTER (DECL_NAME (found_decl)));
6343 /* Can't override a method with the same name and different return
6345 if (TREE_TYPE (TREE_TYPE (found)) != TREE_TYPE (TREE_TYPE (method)))
6348 (lang_printable_name (TREE_TYPE (TREE_TYPE (found)), 0));
6351 "Method `%s' was defined with return type `%s' in class `%s'",
6352 lang_printable_name (found, 0), t,
6354 (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found)))));
6358 aflags = get_access_flags_from_decl (found);
6360 /* Can't override final. Can't override static. */
6361 if (METHOD_FINAL (found) || METHOD_STATIC (found))
6363 /* Static *can* override static */
6364 if (METHOD_STATIC (found) && METHOD_STATIC (method))
6368 "%s methods can't be overriden. Method `%s' is %s in class `%s'",
6369 (METHOD_FINAL (found) ? "Final" : "Static"),
6370 lang_printable_name (found, 0),
6371 (METHOD_FINAL (found) ? "final" : "static"),
6373 (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found)))));
6377 /* Static method can't override instance method. */
6378 if (METHOD_STATIC (method))
6382 "Instance methods can't be overriden by a static method. Method `%s' is an instance method in class `%s'",
6383 lang_printable_name (found, 0),
6385 (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found)))));
6389 /* - Overriding/hiding public must be public
6390 - Overriding/hiding protected must be protected or public
6391 - If the overriden or hidden method has default (package)
6392 access, then the overriding or hiding method must not be
6393 private; otherwise, a compile-time error occurs. If
6394 `found' belongs to an interface, things have been already
6396 if (!CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (found)))
6397 && ((METHOD_PUBLIC (found) && !METHOD_PUBLIC (method))
6398 || (METHOD_PROTECTED (found)
6399 && !(METHOD_PUBLIC (method) || METHOD_PROTECTED (method)))
6400 || (!(aflags & (ACC_PUBLIC | ACC_PRIVATE | ACC_STATIC))
6401 && METHOD_PRIVATE (method))))
6405 "Methods can't be overridden to be more private. Method `%s' is not %s in class `%s'", lang_printable_name (method, 0),
6406 (METHOD_PUBLIC (method) ? "public" :
6407 (METHOD_PRIVATE (method) ? "private" : "protected")),
6408 IDENTIFIER_POINTER (DECL_NAME
6409 (TYPE_NAME (DECL_CONTEXT (found)))));
6413 /* Overriding methods must have compatible `throws' clauses on checked
6414 exceptions, if any */
6415 check_throws_clauses (method, method_wfl, found);
6417 /* Inheriting multiple methods with the same signature. FIXME */
6420 if (!TYPE_NVIRTUALS (class))
6421 TYPE_METHODS (class) = nreverse (TYPE_METHODS (class));
6423 /* Search for inherited abstract method not yet implemented in this
6425 java_check_abstract_method_definitions (class_decl);
6427 if (!saw_constructor)
6431 /* Return a non zero value if the `throws' clause of METHOD (if any)
6432 is incompatible with the `throws' clause of FOUND (if any). */
6435 check_throws_clauses (method, method_wfl, found)
6436 tree method, method_wfl, found;
6438 tree mthrows, fthrows;
6440 /* Can't check these things with class loaded from bytecode. FIXME */
6441 if (!CLASS_FROM_SOURCE_P (DECL_CONTEXT (found)))
6444 for (mthrows = DECL_FUNCTION_THROWS (method);
6445 mthrows; mthrows = TREE_CHAIN (mthrows))
6447 /* We don't verify unchecked expressions */
6448 if (IS_UNCHECKED_EXCEPTION_P (TREE_VALUE (mthrows)))
6450 /* Checked expression must be compatible */
6451 for (fthrows = DECL_FUNCTION_THROWS (found);
6452 fthrows; fthrows = TREE_CHAIN (fthrows))
6453 if (inherits_from_p (TREE_VALUE (mthrows), TREE_VALUE (fthrows)))
6458 (method_wfl, "Invalid checked exception class `%s' in `throws' clause. The exception must be a subclass of an exception thrown by `%s' from class `%s'",
6459 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (TREE_VALUE (mthrows)))),
6460 lang_printable_name (found, 0),
6462 (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found)))));
6467 /* Check abstract method of interface INTERFACE */
6470 java_check_abstract_methods (interface_decl)
6471 tree interface_decl;
6474 tree method, basetype_vec, found;
6475 tree interface = TREE_TYPE (interface_decl);
6477 for (method = TYPE_METHODS (interface); method; method = TREE_CHAIN (method))
6479 /* 2- Check for double definition inside the defining interface */
6480 if (check_method_redefinition (interface, method))
6483 /* 3- Overriding is OK as far as we preserve the return type and
6484 the thrown exceptions (FIXME) */
6485 found = lookup_java_interface_method2 (interface, method);
6489 t = xstrdup (lang_printable_name (TREE_TYPE (TREE_TYPE (found)), 0));
6491 (DECL_FUNCTION_WFL (found),
6492 "Method `%s' was defined with return type `%s' in class `%s'",
6493 lang_printable_name (found, 0), t,
6495 (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found)))));
6501 /* 4- Inherited methods can't differ by their returned types */
6502 if (!(basetype_vec = TYPE_BINFO_BASETYPES (interface)))
6504 n = TREE_VEC_LENGTH (basetype_vec);
6505 for (i = 0; i < n; i++)
6507 tree sub_interface_method, sub_interface;
6508 tree vec_elt = TREE_VEC_ELT (basetype_vec, i);
6511 sub_interface = BINFO_TYPE (vec_elt);
6512 for (sub_interface_method = TYPE_METHODS (sub_interface);
6513 sub_interface_method;
6514 sub_interface_method = TREE_CHAIN (sub_interface_method))
6516 found = lookup_java_interface_method2 (interface,
6517 sub_interface_method);
6518 if (found && (found != sub_interface_method))
6521 (lookup_cl (sub_interface_method),
6522 "Interface `%s' inherits method `%s' from interface `%s'. This method is redefined with a different return type in interface `%s'",
6523 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (interface))),
6524 lang_printable_name (found, 0),
6526 (DECL_NAME (TYPE_NAME
6527 (DECL_CONTEXT (sub_interface_method)))),
6529 (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found)))));
6535 /* Lookup methods in interfaces using their name and partial
6536 signature. Return a matching method only if their types differ. */
6539 lookup_java_interface_method2 (class, method_decl)
6540 tree class, method_decl;
6543 tree basetype_vec = TYPE_BINFO_BASETYPES (class), to_return;
6548 n = TREE_VEC_LENGTH (basetype_vec);
6549 for (i = 0; i < n; i++)
6551 tree vec_elt = TREE_VEC_ELT (basetype_vec, i), to_return;
6552 if ((BINFO_TYPE (vec_elt) != object_type_node)
6554 lookup_java_method2 (BINFO_TYPE (vec_elt), method_decl, 1)))
6557 for (i = 0; i < n; i++)
6559 to_return = lookup_java_interface_method2
6560 (BINFO_TYPE (TREE_VEC_ELT (basetype_vec, i)), method_decl);
6568 /* Lookup method using their name and partial signature. Return a
6569 matching method only if their types differ. */
6572 lookup_java_method2 (clas, method_decl, do_interface)
6573 tree clas, method_decl;
6576 tree method, method_signature, method_name, method_type, name;
6578 method_signature = build_java_argument_signature (TREE_TYPE (method_decl));
6579 name = DECL_NAME (method_decl);
6580 method_name = (TREE_CODE (name) == EXPR_WITH_FILE_LOCATION ?
6581 EXPR_WFL_NODE (name) : name);
6582 method_type = TREE_TYPE (TREE_TYPE (method_decl));
6584 while (clas != NULL_TREE)
6586 for (method = TYPE_METHODS (clas);
6587 method != NULL_TREE; method = TREE_CHAIN (method))
6589 tree method_sig = build_java_argument_signature (TREE_TYPE (method));
6590 tree name = DECL_NAME (method);
6591 if ((TREE_CODE (name) == EXPR_WITH_FILE_LOCATION ?
6592 EXPR_WFL_NODE (name) : name) == method_name
6593 && method_sig == method_signature
6594 && TREE_TYPE (TREE_TYPE (method)) != method_type)
6597 clas = (do_interface ? NULL_TREE : CLASSTYPE_SUPER (clas));
6602 /* Return the line that matches DECL line number, and try its best to
6603 position the column number. Used during error reports. */
6609 static tree cl = NULL_TREE;
6615 if (cl == NULL_TREE)
6617 cl = build_expr_wfl (NULL_TREE, NULL, 0, 0);
6618 ggc_add_tree_root (&cl, 1);
6621 EXPR_WFL_FILENAME_NODE (cl) = get_identifier (DECL_SOURCE_FILE (decl));
6622 EXPR_WFL_SET_LINECOL (cl, DECL_SOURCE_LINE_FIRST (decl), -1);
6624 line = java_get_line_col (EXPR_WFL_FILENAME (cl),
6625 EXPR_WFL_LINENO (cl), EXPR_WFL_COLNO (cl));
6627 found = strstr ((const char *)line,
6628 (const char *)IDENTIFIER_POINTER (DECL_NAME (decl)));
6630 EXPR_WFL_SET_LINECOL (cl, EXPR_WFL_LINENO (cl), found - line);
6635 /* Look for a simple name in the single-type import list */
6638 find_name_in_single_imports (name)
6643 for (node = ctxp->import_list; node; node = TREE_CHAIN (node))
6644 if (TREE_VALUE (node) == name)
6645 return (EXPR_WFL_NODE (TREE_PURPOSE (node)));
6650 /* Process all single-type import. */
6658 for (import = ctxp->import_list; import; import = TREE_CHAIN (import))
6660 tree to_be_found = EXPR_WFL_NODE (TREE_PURPOSE (import));
6661 char *original_name;
6663 obstack_grow0 (&temporary_obstack,
6664 IDENTIFIER_POINTER (to_be_found),
6665 IDENTIFIER_LENGTH (to_be_found));
6666 original_name = obstack_finish (&temporary_obstack);
6668 /* Don't load twice something already defined. */
6669 if (IDENTIFIER_CLASS_VALUE (to_be_found))
6676 QUALIFIED_P (to_be_found) = 1;
6677 load_class (to_be_found, 0);
6679 check_pkg_class_access (to_be_found, TREE_PURPOSE (import));
6681 /* We found it, we can bail out */
6682 if (IDENTIFIER_CLASS_VALUE (to_be_found))
6685 /* We haven't found it. Maybe we're trying to access an
6686 inner class. The only way for us to know is to try again
6687 after having dropped a qualifier. If we can't break it further,
6688 we have an error. */
6689 if (breakdown_qualified (&left, NULL, to_be_found))
6694 if (!IDENTIFIER_CLASS_VALUE (to_be_found))
6696 parse_error_context (TREE_PURPOSE (import),
6697 "Class or interface `%s' not found in import",
6702 obstack_free (&temporary_obstack, original_name);
6709 /* Possibly find and mark a class imported by a single-type import
6713 find_in_imports (class_type)
6718 for (import = ctxp->import_list; import; import = TREE_CHAIN (import))
6719 if (TREE_VALUE (import) == TYPE_NAME (class_type))
6721 TYPE_NAME (class_type) = EXPR_WFL_NODE (TREE_PURPOSE (import));
6722 QUALIFIED_P (TYPE_NAME (class_type)) = 1;
6727 note_possible_classname (name, len)
6732 if (len > 5 && strncmp (&name [len-5], ".java", 5) == 0)
6734 else if (len > 6 && strncmp (&name [len-6], ".class", 6) == 0)
6738 node = ident_subst (name, len, "", '/', '.', "");
6739 IS_A_CLASSFILE_NAME (node) = 1; /* Or soon to be */
6740 QUALIFIED_P (node) = strchr (name, '/') ? 1 : 0;
6744 /* Read a import directory, gathering potential match for further type
6745 references. Indifferently reads a filesystem or a ZIP archive
6749 read_import_dir (wfl)
6752 tree package_id = EXPR_WFL_NODE (wfl);
6753 const char *package_name = IDENTIFIER_POINTER (package_id);
6754 int package_length = IDENTIFIER_LENGTH (package_id);
6756 JCF *saved_jcf = current_jcf;
6761 struct buffer filename[1];
6764 if (IS_AN_IMPORT_ON_DEMAND_P (package_id))
6766 IS_AN_IMPORT_ON_DEMAND_P (package_id) = 1;
6768 BUFFER_INIT (filename);
6769 buffer_grow (filename, package_length + 100);
6771 for (entry = jcf_path_start (); entry != NULL; entry = jcf_path_next (entry))
6773 const char *entry_name = jcf_path_name (entry);
6774 int entry_length = strlen (entry_name);
6775 if (jcf_path_is_zipfile (entry))
6778 buffer_grow (filename, entry_length);
6779 memcpy (filename->data, entry_name, entry_length - 1);
6780 filename->data[entry_length-1] = '\0';
6781 zipf = opendir_in_zip (filename->data, jcf_path_is_system (entry));
6783 error ("malformed .zip archive in CLASSPATH: %s", entry_name);
6786 ZipDirectory *zipd = (ZipDirectory *) zipf->central_directory;
6787 BUFFER_RESET (filename);
6788 for (k = 0; k < package_length; k++)
6790 char ch = package_name[k];
6791 *filename->ptr++ = ch == '.' ? '/' : ch;
6793 *filename->ptr++ = '/';
6795 for (k = 0; k < zipf->count; k++, zipd = ZIPDIR_NEXT (zipd))
6797 const char *current_entry = ZIPDIR_FILENAME (zipd);
6798 int current_entry_len = zipd->filename_length;
6800 if (current_entry_len >= BUFFER_LENGTH (filename)
6801 && strncmp (filename->data, current_entry,
6802 BUFFER_LENGTH (filename)) != 0)
6804 found |= note_possible_classname (current_entry,
6811 BUFFER_RESET (filename);
6812 buffer_grow (filename, entry_length + package_length + 4);
6813 strcpy (filename->data, entry_name);
6814 filename->ptr = filename->data + entry_length;
6815 for (k = 0; k < package_length; k++)
6817 char ch = package_name[k];
6818 *filename->ptr++ = ch == '.' ? '/' : ch;
6820 *filename->ptr = '\0';
6822 dirp = opendir (filename->data);
6825 *filename->ptr++ = '/';
6830 struct dirent *direntp = readdir (dirp);
6833 d_name = direntp->d_name;
6834 len = strlen (direntp->d_name);
6835 buffer_grow (filename, len+1);
6836 strcpy (filename->ptr, d_name);
6837 found |= note_possible_classname (filename->data + entry_length,
6838 package_length+len+1);
6845 free (filename->data);
6847 /* Here we should have a unified way of retrieving an entry, to be
6851 static int first = 1;
6854 error ("Can't find default package `%s'. Check the CLASSPATH environment variable and the access to the archives.", package_name);
6859 parse_error_context (wfl, "Package `%s' not found in import",
6861 current_jcf = saved_jcf;
6864 current_jcf = saved_jcf;
6867 /* Possibly find a type in the import on demands specified
6868 types. Returns 1 if an error occured, 0 otherwise. Run throught the
6869 entire list, to detected potential double definitions. */
6872 find_in_imports_on_demand (class_type)
6875 tree node, import, node_to_use = NULL_TREE;
6877 tree cl = NULL_TREE;
6879 for (import = ctxp->import_demand_list; import; import = TREE_CHAIN (import))
6881 const char *id_name;
6882 obstack_grow (&temporary_obstack,
6883 IDENTIFIER_POINTER (EXPR_WFL_NODE (TREE_PURPOSE (import))),
6884 IDENTIFIER_LENGTH (EXPR_WFL_NODE (TREE_PURPOSE (import))));
6885 obstack_1grow (&temporary_obstack, '.');
6886 obstack_grow0 (&temporary_obstack,
6887 IDENTIFIER_POINTER (TYPE_NAME (class_type)),
6888 IDENTIFIER_LENGTH (TYPE_NAME (class_type)));
6889 id_name = obstack_finish (&temporary_obstack);
6891 node = maybe_get_identifier (id_name);
6892 if (node && IS_A_CLASSFILE_NAME (node))
6896 cl = TREE_PURPOSE (import);
6904 (TREE_PURPOSE (import),
6905 "Type `%s' also potentially defined in package `%s'",
6906 IDENTIFIER_POINTER (TYPE_NAME (class_type)),
6907 IDENTIFIER_POINTER (EXPR_WFL_NODE (TREE_PURPOSE (import))));
6914 /* Setup lineno so that it refers to the line of the import (in
6915 case we parse a class file and encounter errors */
6917 int saved_lineno = lineno;
6918 lineno = EXPR_WFL_LINENO (cl);
6919 TYPE_NAME (class_type) = node_to_use;
6920 QUALIFIED_P (TYPE_NAME (class_type)) = 1;
6921 decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type));
6922 /* If there is no DECL set for the class or if the class isn't
6923 loaded and not seen in source yet, the load */
6924 if (!decl || (!CLASS_LOADED_P (TREE_TYPE (decl))
6925 && !CLASS_FROM_SOURCE_P (TREE_TYPE (decl))))
6927 load_class (node_to_use, 0);
6928 decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type));
6930 lineno = saved_lineno;
6931 if (! INNER_CLASS_P (TREE_TYPE (decl)))
6932 return check_pkg_class_access (TYPE_NAME (class_type), cl);
6934 /* 6.6.1: Inner classes are subject to member access rules. */
6938 return (seen_once < 0 ? 0 : seen_once); /* It's ok not to have found */
6941 /* Add package NAME to the list of package encountered so far. To
6942 speed up class lookup in do_resolve_class, we make sure a
6943 particular package is added only once. */
6946 register_package (name)
6949 static struct hash_table _pht, *pht = NULL;
6953 hash_table_init (&_pht, hash_newfunc,
6954 java_hash_hash_tree_node, java_hash_compare_tree_node);
6958 if (!hash_lookup (pht, (const hash_table_key) name, FALSE, NULL))
6960 package_list = chainon (package_list, build_tree_list (name, NULL));
6961 hash_lookup (pht, (const hash_table_key) name, TRUE, NULL);
6966 resolve_package (pkg, next)
6970 tree type_name = NULL_TREE;
6971 const char *name = IDENTIFIER_POINTER (EXPR_WFL_NODE (pkg));
6973 /* The trick is to determine when the package name stops and were
6974 the name of something contained in the package starts. Then we
6975 return a fully qualified name of what we want to get. */
6977 /* Do a quick search on well known package names */
6978 if (!strncmp (name, "java.lang.reflect", 17))
6981 TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (EXPR_WFL_QUALIFICATION (pkg))));
6982 type_name = lookup_package_type (name, 17);
6984 else if (!strncmp (name, "java.lang", 9))
6986 *next = TREE_CHAIN (TREE_CHAIN (EXPR_WFL_QUALIFICATION (pkg)));
6987 type_name = lookup_package_type (name, 9);
6990 /* If we found something here, return */
6994 *next = EXPR_WFL_QUALIFICATION (pkg);
6996 /* Try to progressively construct a type name */
6997 if (TREE_CODE (pkg) == EXPR_WITH_FILE_LOCATION)
6998 for (acc = NULL_TREE, current = EXPR_WFL_QUALIFICATION (pkg);
6999 current; current = TREE_CHAIN (current))
7001 /* If we don't have what we're expecting, exit now. TYPE_NAME
7002 will be null and the error caught later. */
7003 if (TREE_CODE (QUAL_WFL (current)) != EXPR_WITH_FILE_LOCATION)
7005 acc = merge_qualified_name (acc, EXPR_WFL_NODE (QUAL_WFL (current)));
7006 if ((type_name = resolve_no_layout (acc, NULL_TREE)))
7009 /* resolve_package should be used in a loop, hence we
7010 point at this one to naturally process the next one at
7011 the next iteration. */
7020 lookup_package_type (name, from)
7025 const char *sub = &name[from+1];
7026 while (*sub != '.' && *sub)
7028 strncpy (subname, name, sub-name);
7029 subname [sub-name] = '\0';
7030 return get_identifier (subname);
7033 /* Check accessibility of inner classes according to member access rules.
7034 DECL is the inner class, ENCLOSING_DECL is the class from which the
7035 access is being attempted. */
7038 check_inner_class_access (decl, enclosing_decl, cl)
7039 tree decl, enclosing_decl, cl;
7042 tree enclosing_decl_type;
7044 /* We don't issue an error message when CL is null. CL can be null
7045 as a result of processing a JDEP crafted by source_start_java_method
7046 for the purpose of patching its parm decl. But the error would
7047 have been already trapped when fixing the method's signature.
7048 DECL can also be NULL in case of earlier errors. */
7052 enclosing_decl_type = TREE_TYPE (enclosing_decl);
7054 if (CLASS_PRIVATE (decl))
7056 /* Access is permitted only within the body of the top-level
7057 class in which DECL is declared. */
7058 tree top_level = decl;
7059 while (DECL_CONTEXT (top_level))
7060 top_level = DECL_CONTEXT (top_level);
7061 while (DECL_CONTEXT (enclosing_decl))
7062 enclosing_decl = DECL_CONTEXT (enclosing_decl);
7063 if (top_level == enclosing_decl)
7067 else if (CLASS_PROTECTED (decl))
7070 /* Access is permitted from within the same package... */
7071 if (in_same_package (decl, enclosing_decl))
7074 /* ... or from within the body of a subtype of the context in which
7075 DECL is declared. */
7076 decl_context = DECL_CONTEXT (decl);
7077 while (enclosing_decl)
7079 if (CLASS_INTERFACE (decl))
7081 if (interface_of_p (TREE_TYPE (decl_context),
7082 enclosing_decl_type))
7087 /* Eww. The order of the arguments is different!! */
7088 if (inherits_from_p (enclosing_decl_type,
7089 TREE_TYPE (decl_context)))
7092 enclosing_decl = DECL_CONTEXT (enclosing_decl);
7094 access = "protected";
7096 else if (! CLASS_PUBLIC (decl))
7098 /* Access is permitted only from within the same package as DECL. */
7099 if (in_same_package (decl, enclosing_decl))
7101 access = "non-public";
7104 /* Class is public. */
7107 parse_error_context (cl, "Nested %s %s is %s; cannot be accessed from here",
7108 (CLASS_INTERFACE (decl) ? "interface" : "class"),
7109 lang_printable_name (decl, 0), access);
7112 /* Accessibility check for top-level classes. If CLASS_NAME is in a foreign
7113 package, it must be PUBLIC. Return 0 if no access violations were found,
7117 check_pkg_class_access (class_name, cl)
7123 if (!IDENTIFIER_CLASS_VALUE (class_name))
7126 if (!(type = TREE_TYPE (IDENTIFIER_CLASS_VALUE (class_name))))
7129 if (!CLASS_PUBLIC (TYPE_NAME (type)))
7131 /* Access to a private class within the same package is
7134 breakdown_qualified (&l, &r, class_name);
7135 if (!QUALIFIED_P (class_name) && !ctxp->package)
7136 /* Both in the empty package. */
7138 if (l == ctxp->package)
7139 /* Both in the same package. */
7143 (cl, "Can't access %s `%s'. Only public classes and interfaces in other packages can be accessed",
7144 (CLASS_INTERFACE (TYPE_NAME (type)) ? "interface" : "class"),
7145 IDENTIFIER_POINTER (class_name));
7151 /* Local variable declaration. */
7154 declare_local_variables (modifier, type, vlist)
7159 tree decl, current, saved_type;
7160 tree type_wfl = NULL_TREE;
7164 /* Push a new block if statements were seen between the last time we
7165 pushed a block and now. Keep a count of blocks to close */
7166 if (BLOCK_EXPR_BODY (GET_CURRENT_BLOCK (current_function_decl)))
7168 tree b = enter_block ();
7169 BLOCK_IS_IMPLICIT (b) = 1;
7175 for (i = 0; i <= 10; i++) if (1 << i & modifier) break;
7176 if (modifier == ACC_FINAL)
7181 (ctxp->modifier_ctx [i],
7182 "Only `final' is allowed as a local variables modifier");
7187 /* Obtain an incomplete type if TYPE is not complete. TYPE_WFL will
7188 hold the TYPE value if a new incomplete has to be created (as
7189 opposed to being found already existing and reused). */
7190 SET_TYPE_FOR_RESOLUTION (type, type_wfl, must_chain);
7192 /* If TYPE is fully resolved and we don't have a reference, make one */
7193 PROMOTE_RECORD_IF_COMPLETE (type, must_chain);
7195 /* Go through all the declared variables */
7196 for (current = vlist, saved_type = type; current;
7197 current = TREE_CHAIN (current), type = saved_type)
7199 tree other, real_type;
7200 tree wfl = TREE_PURPOSE (current);
7201 tree name = EXPR_WFL_NODE (wfl);
7202 tree init = TREE_VALUE (current);
7204 /* Process NAME, as it may specify extra dimension(s) for it */
7205 type = build_array_from_name (type, type_wfl, name, &name);
7207 /* Variable redefinition check */
7208 if ((other = lookup_name_in_blocks (name)))
7210 variable_redefinition_error (wfl, name, TREE_TYPE (other),
7211 DECL_SOURCE_LINE (other));
7215 /* Type adjustment. We may have just readjusted TYPE because
7216 the variable specified more dimensions. Make sure we have
7217 a reference if we can and don't have one already. */
7218 PROMOTE_RECORD_IF_COMPLETE (type, must_chain);
7220 real_type = GET_REAL_TYPE (type);
7221 /* Never layout this decl. This will be done when its scope
7223 decl = build_decl (VAR_DECL, name, real_type);
7224 MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (decl);
7225 LOCAL_FINAL (decl) = final_p;
7226 BLOCK_CHAIN_DECL (decl);
7228 /* If doing xreferencing, replace the line number with the WFL
7231 DECL_SOURCE_LINE (decl) = EXPR_WFL_LINECOL (wfl);
7233 /* Don't try to use an INIT statement when an error was found */
7234 if (init && java_error_count)
7237 /* Add the initialization function to the current function's code */
7240 /* Name might have been readjusted */
7241 EXPR_WFL_NODE (TREE_OPERAND (init, 0)) = name;
7242 MODIFY_EXPR_FROM_INITIALIZATION_P (init) = 1;
7243 java_method_add_stmt (current_function_decl,
7244 build_debugable_stmt (EXPR_WFL_LINECOL (init),
7248 /* Setup dependency the type of the decl */
7252 register_incomplete_type (JDEP_VARIABLE, type_wfl, decl, type);
7253 dep = CLASSD_LAST (ctxp->classd_list);
7254 JDEP_GET_PATCH (dep) = &TREE_TYPE (decl);
7257 SOURCE_FRONTEND_DEBUG (("Defined locals"));
7260 /* Called during parsing. Build decls from argument list. */
7263 source_start_java_method (fndecl)
7273 current_function_decl = fndecl;
7275 /* New scope for the function */
7277 for (tem = TYPE_ARG_TYPES (TREE_TYPE (fndecl)), i = 0;
7278 tem != end_params_node; tem = TREE_CHAIN (tem), i++)
7280 tree type = TREE_VALUE (tem);
7281 tree name = TREE_PURPOSE (tem);
7283 /* If type is incomplete. Create an incomplete decl and ask for
7284 the decl to be patched later */
7285 if (INCOMPLETE_TYPE_P (type))
7288 tree real_type = GET_REAL_TYPE (type);
7289 parm_decl = build_decl (PARM_DECL, name, real_type);
7290 type = obtain_incomplete_type (type);
7291 register_incomplete_type (JDEP_PARM, NULL_TREE, NULL_TREE, type);
7292 jdep = CLASSD_LAST (ctxp->classd_list);
7293 JDEP_MISC (jdep) = name;
7294 JDEP_GET_PATCH (jdep) = &TREE_TYPE (parm_decl);
7297 parm_decl = build_decl (PARM_DECL, name, type);
7299 /* Remember if a local variable was declared final (via its
7300 TREE_LIST of type/name.) Set LOCAL_FINAL accordingly. */
7301 if (ARG_FINAL_P (tem))
7303 MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (parm_decl);
7304 LOCAL_FINAL (parm_decl) = 1;
7307 BLOCK_CHAIN_DECL (parm_decl);
7309 tem = BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl));
7310 BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl)) =
7312 DECL_ARG_SLOT_COUNT (current_function_decl) = i;
7313 DECL_MAX_LOCALS (current_function_decl) = i;
7316 /* Called during parsing. Creates an artificial method declaration. */
7319 create_artificial_method (class, flags, type, name, args)
7322 tree type, name, args;
7326 java_parser_context_save_global ();
7328 mdecl = make_node (FUNCTION_TYPE);
7329 TREE_TYPE (mdecl) = type;
7330 TYPE_ARG_TYPES (mdecl) = args;
7331 mdecl = add_method (class, flags, name, build_java_signature (mdecl));
7332 java_parser_context_restore_global ();
7333 DECL_ARTIFICIAL (mdecl) = 1;
7337 /* Starts the body if an artifical method. */
7340 start_artificial_method_body (mdecl)
7343 DECL_SOURCE_LINE (mdecl) = 1;
7344 DECL_SOURCE_LINE_MERGE (mdecl, 1);
7345 source_start_java_method (mdecl);
7350 end_artificial_method_body (mdecl)
7353 /* exit_block modifies DECL_FUNCTION_BODY (current_function_decl).
7354 It has to be evaluated first. (if mdecl is current_function_decl,
7355 we have an undefined behavior if no temporary variable is used.) */
7356 tree b = exit_block ();
7357 BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (mdecl)) = b;
7361 /* Terminate a function and expand its body. */
7364 source_end_java_method ()
7366 tree fndecl = current_function_decl;
7371 java_parser_context_save_global ();
7372 lineno = ctxp->last_ccb_indent1;
7374 /* Turn function bodies with only a NOP expr null, so they don't get
7375 generated at all and we won't get warnings when using the -W
7377 if (BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl)) == empty_stmt_node)
7378 BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl)) = NULL_TREE;
7380 /* Generate function's code */
7381 if (BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl))
7382 && ! flag_emit_class_files
7383 && ! flag_emit_xref)
7384 expand_expr_stmt (BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl)));
7386 /* pop out of its parameters */
7387 pushdecl_force_head (DECL_ARGUMENTS (fndecl));
7389 BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
7391 /* Generate rtl for function exit. */
7392 if (! flag_emit_class_files && ! flag_emit_xref)
7394 lineno = DECL_SOURCE_LINE_LAST (fndecl);
7395 expand_function_end (input_filename, lineno, 0);
7397 /* Run the optimizers and output assembler code for this function. */
7398 rest_of_compilation (fndecl);
7401 current_function_decl = NULL_TREE;
7402 java_parser_context_restore_global ();
7405 /* Record EXPR in the current function block. Complements compound
7406 expression second operand if necessary. */
7409 java_method_add_stmt (fndecl, expr)
7412 if (!GET_CURRENT_BLOCK (fndecl))
7414 return add_stmt_to_block (GET_CURRENT_BLOCK (fndecl), NULL_TREE, expr);
7418 add_stmt_to_block (b, type, stmt)
7421 tree body = BLOCK_EXPR_BODY (b), c;
7423 if (java_error_count)
7426 if ((c = add_stmt_to_compound (body, type, stmt)) == body)
7429 BLOCK_EXPR_BODY (b) = c;
7430 TREE_SIDE_EFFECTS (c) = 1;
7434 /* Add STMT to EXISTING if possible, otherwise create a new
7435 COMPOUND_EXPR and add STMT to it. */
7438 add_stmt_to_compound (existing, type, stmt)
7439 tree existing, type, stmt;
7442 return build (COMPOUND_EXPR, type, existing, stmt);
7447 void java_layout_seen_class_methods ()
7449 tree previous_list = all_class_list;
7450 tree end = NULL_TREE;
7455 for (current = previous_list;
7456 current != end; current = TREE_CHAIN (current))
7457 layout_class_methods (TREE_TYPE (TREE_VALUE (current)));
7459 if (previous_list != all_class_list)
7461 end = previous_list;
7462 previous_list = all_class_list;
7470 java_reorder_fields ()
7472 static tree stop_reordering = NULL_TREE;
7473 static int initialized_p;
7476 /* Register STOP_REORDERING with the garbage collector. */
7479 ggc_add_tree_root (&stop_reordering, 1);
7483 for (current = gclass_list; current; current = TREE_CHAIN (current))
7485 current_class = TREE_TYPE (TREE_VALUE (current));
7487 if (current_class == stop_reordering)
7490 /* Reverse the fields, but leave the dummy field in front.
7491 Fields are already ordered for Object and Class */
7492 if (TYPE_FIELDS (current_class) && current_class != object_type_node
7493 && current_class != class_type_node)
7495 /* If the dummy field is there, reverse the right fields and
7496 just layout the type for proper fields offset */
7497 if (!DECL_NAME (TYPE_FIELDS (current_class)))
7499 tree fields = TYPE_FIELDS (current_class);
7500 TREE_CHAIN (fields) = nreverse (TREE_CHAIN (fields));
7501 TYPE_SIZE (current_class) = NULL_TREE;
7503 /* We don't have a dummy field, we need to layout the class,
7504 after having reversed the fields */
7507 TYPE_FIELDS (current_class) =
7508 nreverse (TYPE_FIELDS (current_class));
7509 TYPE_SIZE (current_class) = NULL_TREE;
7513 /* There are cases were gclass_list will be empty. */
7515 stop_reordering = TREE_TYPE (TREE_VALUE (gclass_list));
7518 /* Layout the methods of all classes loaded in one way or another.
7519 Check methods of source parsed classes. Then reorder the
7520 fields and layout the classes or the type of all source parsed
7524 java_layout_classes ()
7527 int save_error_count = java_error_count;
7529 /* Layout the methods of all classes seen so far */
7530 java_layout_seen_class_methods ();
7531 java_parse_abort_on_error ();
7532 all_class_list = NULL_TREE;
7534 /* Then check the methods of all parsed classes */
7535 for (current = gclass_list; current; current = TREE_CHAIN (current))
7536 if (CLASS_FROM_SOURCE_P (TREE_TYPE (TREE_VALUE (current))))
7537 java_check_methods (TREE_VALUE (current));
7538 java_parse_abort_on_error ();
7540 for (current = gclass_list; current; current = TREE_CHAIN (current))
7542 current_class = TREE_TYPE (TREE_VALUE (current));
7543 layout_class (current_class);
7545 /* Error reported by the caller */
7546 if (java_error_count)
7550 /* We might have reloaded classes durign the process of laying out
7551 classes for code generation. We must layout the methods of those
7552 late additions, as constructor checks might use them */
7553 java_layout_seen_class_methods ();
7554 java_parse_abort_on_error ();
7557 /* Expand methods in the current set of classes rememebered for
7561 java_complete_expand_classes ()
7565 do_not_fold = flag_emit_xref;
7567 for (current = ctxp->class_list; current; current = TREE_CHAIN (current))
7568 if (!INNER_CLASS_DECL_P (current))
7569 java_complete_expand_class (current);
7572 /* Expand the methods found in OUTER, starting first by OUTER's inner
7576 java_complete_expand_class (outer)
7581 set_nested_class_simple_name_value (outer, 1); /* Set */
7583 /* We need to go after all inner classes and start expanding them,
7584 starting with most nested ones. We have to do that because nested
7585 classes might add functions to outer classes */
7587 for (inner_list = DECL_INNER_CLASS_LIST (outer);
7588 inner_list; inner_list = TREE_CHAIN (inner_list))
7589 java_complete_expand_class (TREE_PURPOSE (inner_list));
7591 java_complete_expand_methods (outer);
7592 set_nested_class_simple_name_value (outer, 0); /* Reset */
7595 /* Expand methods registered in CLASS_DECL. The general idea is that
7596 we expand regular methods first. This allows us get an estimate on
7597 how outer context local alias fields are really used so we can add
7598 to the constructor just enough code to initialize them properly (it
7599 also lets us generate finit$ correctly.) Then we expand the
7600 constructors and then <clinit>. */
7603 java_complete_expand_methods (class_decl)
7606 tree clinit, decl, first_decl;
7608 current_class = TREE_TYPE (class_decl);
7610 /* Find whether the class has final variables */
7611 for (decl = TYPE_FIELDS (current_class); decl; decl = TREE_CHAIN (decl))
7612 if (FIELD_FINAL (decl))
7614 TYPE_HAS_FINAL_VARIABLE (current_class) = 1;
7618 /* Initialize a new constant pool */
7619 init_outgoing_cpool ();
7621 /* Pre-expand <clinit> to figure whether we really need it or
7622 not. If we do need it, we pre-expand the static fields so they're
7623 ready to be used somewhere else. <clinit> will be fully expanded
7624 after we processed the constructors. */
7625 first_decl = TYPE_METHODS (current_class);
7626 clinit = maybe_generate_pre_expand_clinit (current_class);
7628 /* Then generate finit$ (if we need to) because constructors will
7630 if (TYPE_FINIT_STMT_LIST (current_class))
7631 java_complete_expand_method (generate_finit (current_class));
7633 /* Then generate instinit$ (if we need to) because constructors will
7635 if (TYPE_II_STMT_LIST (current_class))
7636 java_complete_expand_method (generate_instinit (current_class));
7638 /* Now do the constructors */
7639 for (decl = first_decl ; !java_error_count && decl; decl = TREE_CHAIN (decl))
7643 if (!DECL_CONSTRUCTOR_P (decl))
7646 no_body = !DECL_FUNCTION_BODY (decl);
7647 /* Don't generate debug info on line zero when expanding a
7648 generated constructor. */
7650 restore_line_number_status (1);
7652 /* Reset the final local variable assignment flags */
7653 if (TYPE_HAS_FINAL_VARIABLE (current_class))
7654 reset_final_variable_local_assignment_flag (current_class);
7656 java_complete_expand_method (decl);
7658 /* Check for missed out final variable assignment */
7659 if (TYPE_HAS_FINAL_VARIABLE (current_class))
7660 check_final_variable_local_assignment_flag (current_class, decl);
7663 restore_line_number_status (0);
7666 /* First, do the ordinary methods. */
7667 for (decl = first_decl; decl; decl = TREE_CHAIN (decl))
7669 /* Ctors aren't part of this batch. */
7670 if (DECL_CONSTRUCTOR_P (decl) || DECL_CLINIT_P (decl))
7673 /* Skip abstract or native methods -- but do handle native
7674 methods when generating JNI stubs. */
7675 if (METHOD_ABSTRACT (decl) || (! flag_jni && METHOD_NATIVE (decl)))
7677 DECL_FUNCTION_BODY (decl) = NULL_TREE;
7681 if (METHOD_NATIVE (decl))
7683 tree body = build_jni_stub (decl);
7684 BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (decl)) = body;
7687 java_complete_expand_method (decl);
7690 /* If there is indeed a <clinit>, fully expand it now */
7693 /* Reset the final local variable assignment flags */
7694 if (TYPE_HAS_FINAL_VARIABLE (current_class))
7695 reset_static_final_variable_assignment_flag (current_class);
7696 /* Prevent the use of `this' inside <clinit> */
7697 ctxp->explicit_constructor_p = 1;
7698 java_complete_expand_method (clinit);
7699 ctxp->explicit_constructor_p = 0;
7700 /* Check for missed out static final variable assignment */
7701 if (TYPE_HAS_FINAL_VARIABLE (current_class)
7702 && !CLASS_INTERFACE (class_decl))
7703 check_static_final_variable_assignment_flag (current_class);
7706 /* We might have generated a class$ that we now want to expand */
7707 if (TYPE_DOT_CLASS (current_class))
7708 java_complete_expand_method (TYPE_DOT_CLASS (current_class));
7710 /* Now verify constructor circularity (stop after the first one we
7712 if (!CLASS_INTERFACE (class_decl))
7713 for (decl = TYPE_METHODS (current_class); decl; decl = TREE_CHAIN (decl))
7714 if (DECL_CONSTRUCTOR_P (decl)
7715 && verify_constructor_circularity (decl, decl))
7718 /* Final check on the initialization of final variables. */
7719 if (TYPE_HAS_FINAL_VARIABLE (current_class))
7721 check_final_variable_global_assignment_flag (current_class);
7722 /* If we have an interface, check for uninitialized fields. */
7723 if (CLASS_INTERFACE (class_decl))
7724 check_static_final_variable_assignment_flag (current_class);
7727 /* Save the constant pool. We'll need to restore it later. */
7728 TYPE_CPOOL (current_class) = outgoing_cpool;
7731 /* Attempt to create <clinit>. Pre-expand static fields so they can be
7732 safely used in some other methods/constructors. */
7735 maybe_generate_pre_expand_clinit (class_type)
7738 tree current, mdecl;
7740 if (!TYPE_CLINIT_STMT_LIST (class_type))
7743 /* Go through all static fields and pre expand them */
7744 for (current = TYPE_FIELDS (class_type); current;
7745 current = TREE_CHAIN (current))
7746 if (FIELD_STATIC (current))
7747 build_field_ref (NULL_TREE, class_type, DECL_NAME (current));
7749 /* Then build the <clinit> method */
7750 mdecl = create_artificial_method (class_type, ACC_STATIC, void_type_node,
7751 clinit_identifier_node, end_params_node);
7752 layout_class_method (class_type, CLASSTYPE_SUPER (class_type),
7754 start_artificial_method_body (mdecl);
7756 /* We process the list of assignment we produced as the result of
7757 the declaration of initialized static field and add them as
7758 statement to the <clinit> method. */
7759 for (current = TYPE_CLINIT_STMT_LIST (class_type); current;
7760 current = TREE_CHAIN (current))
7762 tree stmt = current;
7763 /* We build the assignment expression that will initialize the
7764 field to its value. There are strict rules on static
7765 initializers (8.5). FIXME */
7766 if (TREE_CODE (stmt) != BLOCK && stmt != empty_stmt_node)
7767 stmt = build_debugable_stmt (EXPR_WFL_LINECOL (stmt), stmt);
7768 java_method_add_stmt (mdecl, stmt);
7771 end_artificial_method_body (mdecl);
7773 /* Now we want to place <clinit> as the last method (because we need
7774 it at least for interface so that it doesn't interfere with the
7775 dispatch table based lookup. */
7776 if (TREE_CHAIN (TYPE_METHODS (class_type)))
7778 current = TREE_CHAIN (TYPE_METHODS (class_type));
7779 TYPE_METHODS (class_type) = current;
7781 while (TREE_CHAIN (current))
7782 current = TREE_CHAIN (current);
7784 TREE_CHAIN (current) = mdecl;
7785 TREE_CHAIN (mdecl) = NULL_TREE;
7791 /* Analyzes a method body and look for something that isn't a
7792 MODIFY_EXPR with a constant value. */
7795 analyze_clinit_body (bbody)
7799 switch (TREE_CODE (bbody))
7802 bbody = BLOCK_EXPR_BODY (bbody);
7805 case EXPR_WITH_FILE_LOCATION:
7806 bbody = EXPR_WFL_NODE (bbody);
7810 if (analyze_clinit_body (TREE_OPERAND (bbody, 0)))
7812 bbody = TREE_OPERAND (bbody, 1);
7816 /* Return 0 if the operand is constant, 1 otherwise. */
7817 return ! TREE_CONSTANT (TREE_OPERAND (bbody, 1));
7826 /* See whether we could get rid of <clinit>. Criteria are: all static
7827 final fields have constant initial values and the body of <clinit>
7828 is empty. Return 1 if <clinit> was discarded, 0 otherwise. */
7831 maybe_yank_clinit (mdecl)
7838 if (!DECL_CLINIT_P (mdecl))
7841 /* If the body isn't empty, then we keep <clinit>. Note that if
7842 we're emitting classfiles, this isn't enough not to rule it
7844 fbody = DECL_FUNCTION_BODY (mdecl);
7845 bbody = BLOCK_EXPR_BODY (fbody);
7846 if (bbody && bbody != error_mark_node)
7847 bbody = BLOCK_EXPR_BODY (bbody);
7850 if (bbody && ! flag_emit_class_files && bbody != empty_stmt_node)
7853 type = DECL_CONTEXT (mdecl);
7854 current = TYPE_FIELDS (type);
7856 for (current = (current ? TREE_CHAIN (current) : current);
7857 current; current = TREE_CHAIN (current))
7861 /* We're not interested in non static field */
7862 if (!FIELD_STATIC (current))
7865 /* Anything that isn't String or a basic type is ruled out -- or
7866 if we know how to deal with it (when doing things natively) we
7867 should generated an empty <clinit> so that SUID are computed
7869 if (! JSTRING_TYPE_P (TREE_TYPE (current))
7870 && ! JNUMERIC_TYPE_P (TREE_TYPE (current)))
7873 f_init = DECL_INITIAL (current);
7874 /* If we're emitting native code, we want static final fields to
7875 have constant initializers. If we don't meet these
7876 conditions, we keep <clinit> */
7877 if (!flag_emit_class_files
7878 && !(FIELD_FINAL (current) && f_init && TREE_CONSTANT (f_init)))
7880 /* If we're emitting bytecode, we want static fields to have
7881 constant initializers or no initializer. If we don't meet
7882 these conditions, we keep <clinit> */
7883 if (flag_emit_class_files && f_init && !TREE_CONSTANT (f_init))
7887 /* Now we analyze the method body and look for something that
7888 isn't a MODIFY_EXPR */
7889 if (bbody == empty_stmt_node)
7892 found = analyze_clinit_body (bbody);
7894 if (current || found)
7897 /* Get rid of <clinit> in the class' list of methods */
7898 if (TYPE_METHODS (type) == mdecl)
7899 TYPE_METHODS (type) = TREE_CHAIN (mdecl);
7901 for (current = TYPE_METHODS (type); current;
7902 current = TREE_CHAIN (current))
7903 if (TREE_CHAIN (current) == mdecl)
7905 TREE_CHAIN (current) = TREE_CHAIN (mdecl);
7912 /* Install the argument from MDECL. Suitable to completion and
7913 expansion of mdecl's body. */
7916 start_complete_expand_method (mdecl)
7921 pushlevel (1); /* Prepare for a parameter push */
7922 ptr = &DECL_ARGUMENTS (mdecl);
7923 tem = BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl));
7927 tree next = TREE_CHAIN (tem);
7928 tree type = TREE_TYPE (tem);
7929 if (PROMOTE_PROTOTYPES
7930 && TYPE_PRECISION (type) < TYPE_PRECISION (integer_type_node)
7931 && INTEGRAL_TYPE_P (type))
7932 type = integer_type_node;
7933 DECL_ARG_TYPE (tem) = type;
7934 layout_decl (tem, 0);
7937 ptr = &TREE_CHAIN (tem);
7941 pushdecl_force_head (DECL_ARGUMENTS (mdecl));
7942 lineno = DECL_SOURCE_LINE_FIRST (mdecl);
7943 build_result_decl (mdecl);
7947 /* Complete and expand a method. */
7950 java_complete_expand_method (mdecl)
7953 tree fbody, block_body, exception_copy;
7955 current_function_decl = mdecl;
7956 /* Fix constructors before expanding them */
7957 if (DECL_CONSTRUCTOR_P (mdecl))
7958 fix_constructors (mdecl);
7960 /* Expand functions that have a body */
7961 if (!DECL_FUNCTION_BODY (mdecl))
7964 fbody = DECL_FUNCTION_BODY (mdecl);
7965 block_body = BLOCK_EXPR_BODY (fbody);
7966 exception_copy = NULL_TREE;
7968 current_function_decl = mdecl;
7971 fprintf (stderr, " [%s.",
7972 lang_printable_name (DECL_CONTEXT (mdecl), 0));
7973 announce_function (mdecl);
7975 fprintf (stderr, "]");
7977 /* Prepare the function for tree completion */
7978 start_complete_expand_method (mdecl);
7980 /* Install the current this */
7981 current_this = (!METHOD_STATIC (mdecl) ?
7982 BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (mdecl)) : NULL_TREE);
7984 /* Purge the `throws' list of unchecked exceptions (we save a copy
7985 of the list and re-install it later.) */
7986 exception_copy = copy_list (DECL_FUNCTION_THROWS (mdecl));
7987 purge_unchecked_exceptions (mdecl);
7989 /* Install exceptions thrown with `throws' */
7990 PUSH_EXCEPTIONS (DECL_FUNCTION_THROWS (mdecl));
7992 if (block_body != NULL_TREE)
7994 block_body = java_complete_tree (block_body);
7996 /* Before we check initialization, attached all class initialization
7997 variable to the block_body */
7998 hash_traverse (&DECL_FUNCTION_INIT_TEST_TABLE (mdecl),
7999 attach_init_test_initialization_flags, block_body);
8001 if (! flag_emit_xref && ! METHOD_NATIVE (mdecl))
8003 unsigned int state = check_for_initialization (block_body);
8005 /* Go through all the flags marking the initialization of
8006 static variables and see whether they're definitively
8007 assigned, in which case the type is remembered as
8008 definitively initialized in MDECL. */
8009 if (STATIC_CLASS_INIT_OPT_P ())
8011 hash_traverse (&DECL_FUNCTION_INIT_TEST_TABLE (mdecl),
8012 attach_initialized_static_class, (PTR)&state);
8014 /* Always register the context as properly initialized in
8015 MDECL. This used with caution helps removing extra
8016 initialization of self. */
8017 if (METHOD_STATIC (mdecl))
8018 hash_lookup (&DECL_FUNCTION_INITIALIZED_CLASS_TABLE (mdecl),
8019 (hash_table_key) DECL_CONTEXT (mdecl),
8023 ctxp->explicit_constructor_p = 0;
8026 BLOCK_EXPR_BODY (fbody) = block_body;
8028 /* If we saw a return but couldn't evaluate it properly, we'll have
8029 an error_mark_node here. */
8030 if (block_body != error_mark_node
8031 && (block_body == NULL_TREE || CAN_COMPLETE_NORMALLY (block_body))
8032 && TREE_CODE (TREE_TYPE (TREE_TYPE (mdecl))) != VOID_TYPE
8034 missing_return_error (current_function_decl);
8036 /* See if we can get rid of <clinit> if MDECL happens to be <clinit> */
8037 maybe_yank_clinit (mdecl);
8039 /* Pop the current level, with special measures if we found errors. */
8040 if (java_error_count)
8041 pushdecl_force_head (DECL_ARGUMENTS (mdecl));
8044 /* Pop the exceptions and sanity check */
8046 if (currently_caught_type_list)
8049 /* Restore the copy of the list of exceptions if emitting xrefs. */
8050 DECL_FUNCTION_THROWS (mdecl) = exception_copy;
8053 /* For with each class for which there's code to generate. */
8056 java_expand_method_bodies (class)
8060 for (decl = TYPE_METHODS (class); decl; decl = TREE_CHAIN (decl))
8062 if (!DECL_FUNCTION_BODY (decl))
8065 current_function_decl = decl;
8067 /* It's time to assign the variable flagging static class
8068 initialization based on which classes invoked static methods
8069 are definitely initializing. This should be flagged. */
8070 if (STATIC_CLASS_INIT_OPT_P ())
8071 hash_traverse (&DECL_FUNCTION_STATIC_METHOD_INVOCATION_COMPOUND (decl),
8072 adjust_init_test_initialization, NULL);
8074 /* Prepare the function for RTL expansion */
8075 start_complete_expand_method (decl);
8077 /* Expand function start, generate initialization flag
8078 assignment, and handle synchronized methods. */
8079 complete_start_java_method (decl);
8081 /* Expand the rest of the function body and terminate
8083 source_end_java_method ();
8089 /* This section of the code deals with accessing enclosing context
8090 fields either directly by using the relevant access to this$<n> or
8091 by invoking an access method crafted for that purpose. */
8093 /* Build the necessary access from an inner class to an outer
8094 class. This routine could be optimized to cache previous result
8095 (decl, current_class and returned access). When an access method
8096 needs to be generated, it always takes the form of a read. It might
8097 be later turned into a write by calling outer_field_access_fix. */
8100 build_outer_field_access (id, decl)
8103 tree access = NULL_TREE;
8104 tree ctx = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (current_class)));
8105 tree decl_ctx = DECL_CONTEXT (decl);
8107 /* If the immediate enclosing context of the current class is the
8108 field decl's class or inherits from it; build the access as
8109 `this$<n>.<field>'. Note that we will break the `private' barrier
8110 if we're not emitting bytecodes. */
8111 if ((ctx == decl_ctx || inherits_from_p (ctx, decl_ctx))
8112 && (!FIELD_PRIVATE (decl) || !flag_emit_class_files ))
8114 tree thisn = build_current_thisn (current_class);
8115 access = make_qualified_primary (build_wfl_node (thisn),
8116 id, EXPR_WFL_LINECOL (id));
8118 /* Otherwise, generate access methods to outer this and access the
8119 field (either using an access method or by direct access.) */
8122 int lc = EXPR_WFL_LINECOL (id);
8124 /* Now we chain the required number of calls to the access$0 to
8125 get a hold to the enclosing instance we need, and then we
8126 build the field access. */
8127 access = build_access_to_thisn (current_class, decl_ctx, lc);
8129 /* If the field is private and we're generating bytecode, then
8130 we generate an access method */
8131 if (FIELD_PRIVATE (decl) && flag_emit_class_files )
8133 tree name = build_outer_field_access_methods (decl);
8134 access = build_outer_field_access_expr (lc, decl_ctx,
8135 name, access, NULL_TREE);
8137 /* Otherwise we use `access$(this$<j>). ... access$(this$<i>).<field>'.
8138 Once again we break the `private' access rule from a foreign
8141 access = make_qualified_primary (access, id, lc);
8143 return resolve_expression_name (access, NULL);
8146 /* Return a non zero value if NODE describes an outer field inner
8150 outer_field_access_p (type, decl)
8153 if (!INNER_CLASS_TYPE_P (type)
8154 || TREE_CODE (decl) != FIELD_DECL
8155 || DECL_CONTEXT (decl) == type)
8158 /* If the inner class extends the declaration context of the field
8159 we're try to acces, then this isn't an outer field access */
8160 if (inherits_from_p (type, DECL_CONTEXT (decl)))
8163 for (type = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type))); ;
8164 type = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type))))
8166 if (type == DECL_CONTEXT (decl))
8169 if (!DECL_CONTEXT (TYPE_NAME (type)))
8171 /* Before we give up, see whether the field is inherited from
8172 the enclosing context we're considering. */
8173 if (inherits_from_p (type, DECL_CONTEXT (decl)))
8182 /* Return a non zero value if NODE represents an outer field inner
8183 access that was been already expanded. As a side effect, it returns
8184 the name of the field being accessed and the argument passed to the
8185 access function, suitable for a regeneration of the access method
8186 call if necessary. */
8189 outer_field_expanded_access_p (node, name, arg_type, arg)
8190 tree node, *name, *arg_type, *arg;
8194 if (TREE_CODE (node) != CALL_EXPR)
8197 /* Well, gcj generates slightly different tree nodes when compiling
8198 to native or bytecodes. It's the case for function calls. */
8200 if (flag_emit_class_files
8201 && TREE_CODE (node) == CALL_EXPR
8202 && OUTER_FIELD_ACCESS_IDENTIFIER_P (DECL_NAME (TREE_OPERAND (node, 0))))
8204 else if (!flag_emit_class_files)
8206 node = TREE_OPERAND (node, 0);
8208 if (node && TREE_OPERAND (node, 0)
8209 && TREE_CODE (TREE_OPERAND (node, 0)) == ADDR_EXPR)
8211 node = TREE_OPERAND (node, 0);
8212 if (TREE_OPERAND (node, 0)
8213 && TREE_CODE (TREE_OPERAND (node, 0)) == FUNCTION_DECL
8214 && (OUTER_FIELD_ACCESS_IDENTIFIER_P
8215 (DECL_NAME (TREE_OPERAND (node, 0)))))
8220 if (identified && name && arg_type && arg)
8222 tree argument = TREE_OPERAND (node, 1);
8223 *name = DECL_NAME (TREE_OPERAND (node, 0));
8224 *arg_type = TREE_TYPE (TREE_TYPE (TREE_VALUE (argument)));
8225 *arg = TREE_VALUE (argument);
8230 /* Detect in NODE an outer field read access from an inner class and
8231 transform it into a write with RHS as an argument. This function is
8232 called from the java_complete_lhs when an assignment to a LHS can
8236 outer_field_access_fix (wfl, node, rhs)
8237 tree wfl, node, rhs;
8239 tree name, arg_type, arg;
8241 if (outer_field_expanded_access_p (node, &name, &arg_type, &arg))
8243 /* At any rate, check whether we're trying to assign a value to
8245 tree accessed = (JDECL_P (node) ? node :
8246 (TREE_CODE (node) == COMPONENT_REF ?
8247 TREE_OPERAND (node, 1) : node));
8248 if (check_final_assignment (accessed, wfl))
8249 return error_mark_node;
8251 node = build_outer_field_access_expr (EXPR_WFL_LINECOL (wfl),
8252 arg_type, name, arg, rhs);
8253 return java_complete_tree (node);
8258 /* Construct the expression that calls an access method:
8259 <type>.access$<n>(<arg1> [, <arg2>]);
8261 ARG2 can be NULL and will be omitted in that case. It will denote a
8265 build_outer_field_access_expr (lc, type, access_method_name, arg1, arg2)
8267 tree type, access_method_name, arg1, arg2;
8269 tree args, cn, access;
8271 args = arg1 ? arg1 :
8272 build_wfl_node (build_current_thisn (current_class));
8273 args = build_tree_list (NULL_TREE, args);
8276 args = tree_cons (NULL_TREE, arg2, args);
8278 access = build_method_invocation (build_wfl_node (access_method_name), args);
8279 cn = build_wfl_node (DECL_NAME (TYPE_NAME (type)));
8280 return make_qualified_primary (cn, access, lc);
8284 build_new_access_id ()
8286 static int access_n_counter = 1;
8289 sprintf (buffer, "access$%d", access_n_counter++);
8290 return get_identifier (buffer);
8293 /* Create the static access functions for the outer field DECL. We define a
8295 TREE_TYPE (<field>) access$<n> (DECL_CONTEXT (<field>) inst$) {
8299 TREE_TYPE (<field>) access$<n> (DECL_CONTEXT (<field>) inst$,
8300 TREE_TYPE (<field>) value$) {
8301 return inst$.field = value$;
8303 We should have a usage flags on the DECL so we can lazily turn the ones
8304 we're using for code generation. FIXME.
8308 build_outer_field_access_methods (decl)
8311 tree id, args, stmt, mdecl;
8313 if (FIELD_INNER_ACCESS_P (decl))
8314 return FIELD_INNER_ACCESS (decl);
8316 MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (decl);
8318 /* Create the identifier and a function named after it. */
8319 id = build_new_access_id ();
8321 /* The identifier is marked as bearing the name of a generated write
8322 access function for outer field accessed from inner classes. */
8323 OUTER_FIELD_ACCESS_IDENTIFIER_P (id) = 1;
8325 /* Create the read access */
8326 args = build_tree_list (inst_id, build_pointer_type (DECL_CONTEXT (decl)));
8327 TREE_CHAIN (args) = end_params_node;
8328 stmt = make_qualified_primary (build_wfl_node (inst_id),
8329 build_wfl_node (DECL_NAME (decl)), 0);
8330 stmt = build_return (0, stmt);
8331 mdecl = build_outer_field_access_method (DECL_CONTEXT (decl),
8332 TREE_TYPE (decl), id, args, stmt);
8333 DECL_FUNCTION_ACCESS_DECL (mdecl) = decl;
8335 /* Create the write access method. No write access for final variable */
8336 if (!FIELD_FINAL (decl))
8338 args = build_tree_list (inst_id,
8339 build_pointer_type (DECL_CONTEXT (decl)));
8340 TREE_CHAIN (args) = build_tree_list (wpv_id, TREE_TYPE (decl));
8341 TREE_CHAIN (TREE_CHAIN (args)) = end_params_node;
8342 stmt = make_qualified_primary (build_wfl_node (inst_id),
8343 build_wfl_node (DECL_NAME (decl)), 0);
8344 stmt = build_return (0, build_assignment (ASSIGN_TK, 0, stmt,
8345 build_wfl_node (wpv_id)));
8346 mdecl = build_outer_field_access_method (DECL_CONTEXT (decl),
8347 TREE_TYPE (decl), id,
8350 DECL_FUNCTION_ACCESS_DECL (mdecl) = decl;
8352 /* Return the access name */
8353 return FIELD_INNER_ACCESS (decl) = id;
8356 /* Build an field access method NAME. */
8359 build_outer_field_access_method (class, type, name, args, body)
8360 tree class, type, name, args, body;
8362 tree saved_current_function_decl, mdecl;
8364 /* Create the method */
8365 mdecl = create_artificial_method (class, ACC_STATIC, type, name, args);
8366 fix_method_argument_names (args, mdecl);
8367 layout_class_method (class, NULL_TREE, mdecl, NULL_TREE);
8369 /* Attach the method body. */
8370 saved_current_function_decl = current_function_decl;
8371 start_artificial_method_body (mdecl);
8372 java_method_add_stmt (mdecl, body);
8373 end_artificial_method_body (mdecl);
8374 current_function_decl = saved_current_function_decl;
8380 /* This section deals with building access function necessary for
8381 certain kinds of method invocation from inner classes. */
8384 build_outer_method_access_method (decl)
8387 tree saved_current_function_decl, mdecl;
8388 tree args = NULL_TREE, call_args = NULL_TREE;
8389 tree carg, id, body, class;
8391 int parm_id_count = 0;
8393 /* Test this abort with an access to a private field */
8394 if (!strcmp (IDENTIFIER_POINTER (DECL_NAME (decl)), "access$"))
8397 /* Check the cache first */
8398 if (DECL_FUNCTION_INNER_ACCESS (decl))
8399 return DECL_FUNCTION_INNER_ACCESS (decl);
8401 class = DECL_CONTEXT (decl);
8403 /* Obtain an access identifier and mark it */
8404 id = build_new_access_id ();
8405 OUTER_FIELD_ACCESS_IDENTIFIER_P (id) = 1;
8407 carg = TYPE_ARG_TYPES (TREE_TYPE (decl));
8408 /* Create the arguments, as much as the original */
8409 for (; carg && carg != end_params_node;
8410 carg = TREE_CHAIN (carg))
8412 sprintf (buffer, "write_parm_value$%d", parm_id_count++);
8413 args = chainon (args, build_tree_list (get_identifier (buffer),
8414 TREE_VALUE (carg)));
8416 args = chainon (args, end_params_node);
8418 /* Create the method */
8419 mdecl = create_artificial_method (class, ACC_STATIC,
8420 TREE_TYPE (TREE_TYPE (decl)), id, args);
8421 layout_class_method (class, NULL_TREE, mdecl, NULL_TREE);
8422 /* There is a potential bug here. We should be able to use
8423 fix_method_argument_names, but then arg names get mixed up and
8424 eventually a constructor will have its this$0 altered and the
8425 outer context won't be assignment properly. The test case is
8427 TYPE_ARG_TYPES (TREE_TYPE (mdecl)) = args;
8429 /* Attach the method body. */
8430 saved_current_function_decl = current_function_decl;
8431 start_artificial_method_body (mdecl);
8433 /* The actual method invocation uses the same args. When invoking a
8434 static methods that way, we don't want to skip the first
8437 if (!METHOD_STATIC (decl))
8438 carg = TREE_CHAIN (carg);
8439 for (; carg && carg != end_params_node; carg = TREE_CHAIN (carg))
8440 call_args = tree_cons (NULL_TREE, build_wfl_node (TREE_PURPOSE (carg)),
8443 body = build_method_invocation (build_wfl_node (DECL_NAME (decl)),
8445 if (!METHOD_STATIC (decl))
8446 body = make_qualified_primary (build_wfl_node (TREE_PURPOSE (args)),
8448 if (TREE_TYPE (TREE_TYPE (decl)) != void_type_node)
8449 body = build_return (0, body);
8450 java_method_add_stmt (mdecl,body);
8451 end_artificial_method_body (mdecl);
8452 current_function_decl = saved_current_function_decl;
8454 /* Back tag the access function so it know what it accesses */
8455 DECL_FUNCTION_ACCESS_DECL (decl) = mdecl;
8457 /* Tag the current method so it knows it has an access generated */
8458 return DECL_FUNCTION_INNER_ACCESS (decl) = mdecl;
8462 /* This section of the code deals with building expressions to access
8463 the enclosing instance of an inner class. The enclosing instance is
8464 kept in a generated field called this$<n>, with <n> being the
8465 inner class nesting level (starting from 0.) */
8467 /* Build an access to a given this$<n>, always chaining access call to
8468 others. Access methods to this$<n> are build on the fly if
8469 necessary. This CAN'T be used to solely access this$<n-1> from
8470 this$<n> (which alway yield to special cases and optimization, see
8471 for example build_outer_field_access). */
8474 build_access_to_thisn (from, to, lc)
8478 tree access = NULL_TREE;
8484 access = build_current_thisn (from);
8485 access = build_wfl_node (access);
8489 tree access0_wfl, cn;
8491 maybe_build_thisn_access_method (from);
8492 access0_wfl = build_wfl_node (access0_identifier_node);
8493 cn = build_wfl_node (DECL_NAME (TYPE_NAME (from)));
8494 EXPR_WFL_LINECOL (access0_wfl) = lc;
8495 access = build_tree_list (NULL_TREE, access);
8496 access = build_method_invocation (access0_wfl, access);
8497 access = make_qualified_primary (cn, access, lc);
8500 /* if FROM isn't an inter class, that's fine, we've done
8501 enough. What we're looking for can be accessed from there. */
8502 from = DECL_CONTEXT (TYPE_NAME (from));
8505 from = TREE_TYPE (from);
8510 /* Build an access function to the this$<n> local to TYPE. NULL_TREE
8511 is returned if nothing needs to be generated. Otherwise, the method
8512 generated and a method decl is returned.
8514 NOTE: These generated methods should be declared in a class file
8515 attribute so that they can't be referred to directly. */
8518 maybe_build_thisn_access_method (type)
8521 tree mdecl, args, stmt, rtype;
8522 tree saved_current_function_decl;
8524 /* If TYPE is a top-level class, no access method is required.
8525 If there already is such an access method, bail out. */
8526 if (CLASS_ACCESS0_GENERATED_P (type) || !PURE_INNER_CLASS_TYPE_P (type))
8529 /* We generate the method. The method looks like:
8530 static <outer_of_type> access$0 (<type> inst$) { return inst$.this$<n>; }
8532 args = build_tree_list (inst_id, build_pointer_type (type));
8533 TREE_CHAIN (args) = end_params_node;
8534 rtype = build_pointer_type (TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type))));
8535 mdecl = create_artificial_method (type, ACC_STATIC, rtype,
8536 access0_identifier_node, args);
8537 fix_method_argument_names (args, mdecl);
8538 layout_class_method (type, NULL_TREE, mdecl, NULL_TREE);
8539 stmt = build_current_thisn (type);
8540 stmt = make_qualified_primary (build_wfl_node (inst_id),
8541 build_wfl_node (stmt), 0);
8542 stmt = build_return (0, stmt);
8544 saved_current_function_decl = current_function_decl;
8545 start_artificial_method_body (mdecl);
8546 java_method_add_stmt (mdecl, stmt);
8547 end_artificial_method_body (mdecl);
8548 current_function_decl = saved_current_function_decl;
8550 CLASS_ACCESS0_GENERATED_P (type) = 1;
8555 /* Craft an correctly numbered `this$<n>'string. this$0 is used for
8556 the first level of innerclassing. this$1 for the next one, etc...
8557 This function can be invoked with TYPE to NULL, available and then
8558 has to count the parser context. */
8561 build_current_thisn (type)
8564 static int saved_i = -1;
8565 static tree saved_thisn = NULL_TREE;
8566 static tree saved_type = NULL_TREE;
8567 static int saved_type_i = 0;
8568 static int initialized_p;
8573 /* Register SAVED_THISN and SAVED_TYPE with the garbage collector. */
8576 ggc_add_tree_root (&saved_thisn, 1);
8577 ggc_add_tree_root (&saved_type, 1);
8583 if (type == saved_type)
8587 for (i = -1, decl = DECL_CONTEXT (TYPE_NAME (type));
8588 decl; decl = DECL_CONTEXT (decl), i++)
8596 i = list_length (GET_CPC_LIST ())-2;
8601 sprintf (buffer, "this$%d", i);
8603 saved_thisn = get_identifier (buffer);
8607 /* Return the assignement to the hidden enclosing context `this$<n>'
8608 by the second incoming parameter to the innerclass constructor. The
8609 form used is `this.this$<n> = this$<n>;'. */
8612 build_thisn_assign ()
8614 if (current_class && PURE_INNER_CLASS_TYPE_P (current_class))
8616 tree thisn = build_current_thisn (current_class);
8617 tree lhs = make_qualified_primary (build_wfl_node (this_identifier_node),
8618 build_wfl_node (thisn), 0);
8619 tree rhs = build_wfl_node (thisn);
8620 EXPR_WFL_SET_LINECOL (lhs, lineno, 0);
8621 return build_assignment (ASSIGN_TK, EXPR_WFL_LINECOL (lhs), lhs, rhs);
8627 /* Building the synthetic `class$' used to implement the `.class' 1.1
8628 extension for non primitive types. This method looks like:
8630 static Class class$(String type) throws NoClassDefFoundError
8632 try {return (java.lang.Class.forName (String));}
8633 catch (ClassNotFoundException e) {
8634 throw new NoClassDefFoundError(e.getMessage());}
8638 build_dot_class_method (class)
8641 #define BWF(S) build_wfl_node (get_identifier ((S)))
8642 #define MQN(X,Y) make_qualified_name ((X), (Y), 0)
8643 tree args, tmp, saved_current_function_decl, mdecl;
8644 tree stmt, throw_stmt;
8646 static tree get_message_wfl, type_parm_wfl;
8648 if (!get_message_wfl)
8650 get_message_wfl = build_wfl_node (get_identifier ("getMessage"));
8651 type_parm_wfl = build_wfl_node (get_identifier ("type$"));
8652 ggc_add_tree_root (&get_message_wfl, 1);
8653 ggc_add_tree_root (&type_parm_wfl, 1);
8656 /* Build the arguments */
8657 args = build_tree_list (get_identifier ("type$"),
8658 build_pointer_type (string_type_node));
8659 TREE_CHAIN (args) = end_params_node;
8661 /* Build the qualified name java.lang.Class.forName */
8662 tmp = MQN (MQN (MQN (BWF ("java"),
8663 BWF ("lang")), BWF ("Class")), BWF ("forName"));
8664 load_class (class_not_found_type_node, 1);
8665 load_class (no_class_def_found_type_node, 1);
8667 /* Create the "class$" function */
8668 mdecl = create_artificial_method (class, ACC_STATIC,
8669 build_pointer_type (class_type_node),
8670 classdollar_identifier_node, args);
8671 DECL_FUNCTION_THROWS (mdecl) =
8672 build_tree_list (NULL_TREE, no_class_def_found_type_node);
8674 /* We start by building the try block. We need to build:
8675 return (java.lang.Class.forName (type)); */
8676 stmt = build_method_invocation (tmp,
8677 build_tree_list (NULL_TREE, type_parm_wfl));
8678 stmt = build_return (0, stmt);
8680 /* Now onto the catch block. We start by building the expression
8681 throwing a new exception: throw new NoClassDefFoundError (_.getMessage) */
8682 throw_stmt = make_qualified_name (build_wfl_node (wpv_id),
8683 get_message_wfl, 0);
8684 throw_stmt = build_method_invocation (throw_stmt, NULL_TREE);
8686 /* Build new NoClassDefFoundError (_.getMessage) */
8687 throw_stmt = build_new_invocation
8688 (build_wfl_node (get_identifier ("NoClassDefFoundError")),
8689 build_tree_list (build_pointer_type (string_type_node), throw_stmt));
8691 /* Build the throw, (it's too early to use BUILD_THROW) */
8692 throw_stmt = build1 (THROW_EXPR, NULL_TREE, throw_stmt);
8694 /* Encapsulate STMT in a try block. The catch clause executes THROW_STMT */
8695 stmt = encapsulate_with_try_catch (0, class_not_found_type_node,
8698 fix_method_argument_names (args, mdecl);
8699 layout_class_method (class, NULL_TREE, mdecl, NULL_TREE);
8700 saved_current_function_decl = current_function_decl;
8701 start_artificial_method_body (mdecl);
8702 java_method_add_stmt (mdecl, stmt);
8703 end_artificial_method_body (mdecl);
8704 current_function_decl = saved_current_function_decl;
8705 TYPE_DOT_CLASS (class) = mdecl;
8711 build_dot_class_method_invocation (type)
8716 if (TYPE_ARRAY_P (type))
8717 sig_id = build_java_signature (type);
8719 sig_id = DECL_NAME (TYPE_NAME (type));
8721 /* Ensure that the proper name separator is used */
8722 sig_id = unmangle_classname (IDENTIFIER_POINTER (sig_id),
8723 IDENTIFIER_LENGTH (sig_id));
8725 s = build_string (IDENTIFIER_LENGTH (sig_id),
8726 IDENTIFIER_POINTER (sig_id));
8727 return build_method_invocation (build_wfl_node (classdollar_identifier_node),
8728 build_tree_list (NULL_TREE, s));
8731 /* This section of the code deals with constructor. */
8733 /* Craft a body for default constructor. Patch existing constructor
8734 bodies with call to super() and field initialization statements if
8738 fix_constructors (mdecl)
8741 tree iii; /* Instance Initializer Invocation */
8742 tree body = DECL_FUNCTION_BODY (mdecl);
8743 tree thisn_assign, compound = NULL_TREE;
8744 tree class_type = DECL_CONTEXT (mdecl);
8746 if (DECL_FIXED_CONSTRUCTOR_P (mdecl))
8748 DECL_FIXED_CONSTRUCTOR_P (mdecl) = 1;
8752 /* It is an error for the compiler to generate a default
8753 constructor if the superclass doesn't have a constructor that
8754 takes no argument, or the same args for an anonymous class */
8755 if (verify_constructor_super (mdecl))
8757 tree sclass_decl = TYPE_NAME (CLASSTYPE_SUPER (class_type));
8758 tree save = DECL_NAME (mdecl);
8759 const char *n = IDENTIFIER_POINTER (DECL_NAME (sclass_decl));
8760 DECL_NAME (mdecl) = DECL_NAME (sclass_decl);
8762 (lookup_cl (TYPE_NAME (class_type)),
8763 "No constructor matching `%s' found in class `%s'",
8764 lang_printable_name (mdecl, 0), n);
8765 DECL_NAME (mdecl) = save;
8768 /* The constructor body must be crafted by hand. It's the
8769 constructor we defined when we realize we didn't have the
8770 CLASSNAME() constructor */
8771 start_artificial_method_body (mdecl);
8773 /* Insert an assignment to the this$<n> hidden field, if
8775 if ((thisn_assign = build_thisn_assign ()))
8776 java_method_add_stmt (mdecl, thisn_assign);
8778 /* We don't generate a super constructor invocation if we're
8779 compiling java.lang.Object. build_super_invocation takes care
8781 java_method_add_stmt (mdecl, build_super_invocation (mdecl));
8784 if ((iii = build_instinit_invocation (class_type)))
8785 java_method_add_stmt (mdecl, iii);
8787 end_artificial_method_body (mdecl);
8789 /* Search for an explicit constructor invocation */
8793 int invokes_this = 0;
8794 tree found_call = NULL_TREE;
8795 tree main_block = BLOCK_EXPR_BODY (body);
8798 switch (TREE_CODE (body))
8801 found = CALL_EXPLICIT_CONSTRUCTOR_P (body);
8802 if (CALL_THIS_CONSTRUCTOR_P (body))
8807 case EXPR_WITH_FILE_LOCATION:
8809 body = TREE_OPERAND (body, 0);
8813 body = BLOCK_EXPR_BODY (body);
8820 /* Generate the assignment to this$<n>, if necessary */
8821 if ((thisn_assign = build_thisn_assign ()))
8822 compound = add_stmt_to_compound (compound, NULL_TREE, thisn_assign);
8824 /* The constructor is missing an invocation of super() */
8826 compound = add_stmt_to_compound (compound, NULL_TREE,
8827 build_super_invocation (mdecl));
8828 /* Explicit super() invokation should take place before the
8829 instance initializer blocks. */
8832 compound = add_stmt_to_compound (compound, NULL_TREE,
8833 TREE_OPERAND (found_call, 0));
8834 TREE_OPERAND (found_call, 0) = empty_stmt_node;
8837 /* Insert the instance initializer block right after. */
8838 if (!invokes_this && (iii = build_instinit_invocation (class_type)))
8839 compound = add_stmt_to_compound (compound, NULL_TREE, iii);
8841 /* Fix the constructor main block if we're adding extra stmts */
8844 compound = add_stmt_to_compound (compound, NULL_TREE,
8845 BLOCK_EXPR_BODY (main_block));
8846 BLOCK_EXPR_BODY (main_block) = compound;
8851 /* Browse constructors in the super class, searching for a constructor
8852 that doesn't take any argument. Return 0 if one is found, 1
8853 otherwise. If the current class is an anonymous inner class, look
8854 for something that has the same signature. */
8857 verify_constructor_super (mdecl)
8860 tree class = CLASSTYPE_SUPER (current_class);
8861 int super_inner = PURE_INNER_CLASS_TYPE_P (class);
8867 if (ANONYMOUS_CLASS_P (current_class))
8869 tree mdecl_arg_type;
8870 SKIP_THIS_AND_ARTIFICIAL_PARMS (mdecl_arg_type, mdecl);
8871 for (sdecl = TYPE_METHODS (class); sdecl; sdecl = TREE_CHAIN (sdecl))
8872 if (DECL_CONSTRUCTOR_P (sdecl))
8875 tree arg_type = TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (sdecl)));
8877 arg_type = TREE_CHAIN (arg_type);
8878 for (m_arg_type = mdecl_arg_type;
8879 (arg_type != end_params_node
8880 && m_arg_type != end_params_node);
8881 arg_type = TREE_CHAIN (arg_type),
8882 m_arg_type = TREE_CHAIN (m_arg_type))
8883 if (!valid_method_invocation_conversion_p
8884 (TREE_VALUE (arg_type),
8885 TREE_VALUE (m_arg_type)))
8888 if (arg_type == end_params_node && m_arg_type == end_params_node)
8894 for (sdecl = TYPE_METHODS (class); sdecl; sdecl = TREE_CHAIN (sdecl))
8896 tree arg = TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (sdecl)));
8898 arg = TREE_CHAIN (arg);
8899 if (DECL_CONSTRUCTOR_P (sdecl) && arg == end_params_node)
8906 /* Generate code for all context remembered for code generation. */
8909 java_expand_classes ()
8911 int save_error_count = 0;
8912 static struct parser_ctxt *cur_ctxp = NULL;
8914 java_parse_abort_on_error ();
8915 if (!(ctxp = ctxp_for_generation))
8917 java_layout_classes ();
8918 java_parse_abort_on_error ();
8920 cur_ctxp = ctxp_for_generation;
8921 for (; cur_ctxp; cur_ctxp = cur_ctxp->next)
8924 input_filename = ctxp->filename;
8925 lang_init_source (2); /* Error msgs have method prototypes */
8926 java_complete_expand_classes (); /* Complete and expand classes */
8927 java_parse_abort_on_error ();
8929 input_filename = main_input_filename;
8931 /* Find anonymous classes and expand their constructor, now they
8933 for (cur_ctxp = ctxp_for_generation; cur_ctxp; cur_ctxp = cur_ctxp->next)
8937 for (current = ctxp->class_list; current; current = TREE_CHAIN (current))
8939 current_class = TREE_TYPE (current);
8940 if (ANONYMOUS_CLASS_P (current_class))
8943 for (d = TYPE_METHODS (current_class); d; d = TREE_CHAIN (d))
8945 if (DECL_CONSTRUCTOR_P (d))
8947 restore_line_number_status (1);
8948 java_complete_expand_method (d);
8949 restore_line_number_status (0);
8950 break; /* We now there are no other ones */
8957 /* If we've found error at that stage, don't try to generate
8958 anything, unless we're emitting xrefs or checking the syntax only
8959 (but not using -fsyntax-only for the purpose of generating
8961 if (java_error_count && !flag_emit_xref
8962 && (!flag_syntax_only && !flag_emit_class_files))
8965 /* Now things are stable, go for generation of the class data. */
8966 for (cur_ctxp = ctxp_for_generation; cur_ctxp; cur_ctxp = cur_ctxp->next)
8970 for (current = ctxp->class_list; current; current = TREE_CHAIN (current))
8972 current_class = TREE_TYPE (current);
8973 outgoing_cpool = TYPE_CPOOL (current_class);
8974 if (flag_emit_class_files)
8975 write_classfile (current_class);
8977 expand_xref (current_class);
8978 else if (! flag_syntax_only)
8980 java_expand_method_bodies (current_class);
8987 /* Wrap non WFL PRIMARY around a WFL and set EXPR_WFL_QUALIFICATION to
8988 a tree list node containing RIGHT. Fore coming RIGHTs will be
8989 chained to this hook. LOCATION contains the location of the
8990 separating `.' operator. */
8993 make_qualified_primary (primary, right, location)
8994 tree primary, right;
8999 if (TREE_CODE (primary) != EXPR_WITH_FILE_LOCATION)
9000 wfl = build_wfl_wrap (primary, location);
9004 /* If wfl wasn't qualified, we build a first anchor */
9005 if (!EXPR_WFL_QUALIFICATION (wfl))
9006 EXPR_WFL_QUALIFICATION (wfl) = build_tree_list (wfl, NULL_TREE);
9009 /* And chain them */
9010 EXPR_WFL_LINECOL (right) = location;
9011 chainon (EXPR_WFL_QUALIFICATION (wfl), build_tree_list (right, NULL_TREE));
9012 PRIMARY_P (wfl) = 1;
9016 /* Simple merge of two name separated by a `.' */
9019 merge_qualified_name (left, right)
9023 if (!left && !right)
9032 obstack_grow (&temporary_obstack, IDENTIFIER_POINTER (left),
9033 IDENTIFIER_LENGTH (left));
9034 obstack_1grow (&temporary_obstack, '.');
9035 obstack_grow0 (&temporary_obstack, IDENTIFIER_POINTER (right),
9036 IDENTIFIER_LENGTH (right));
9037 node = get_identifier (obstack_base (&temporary_obstack));
9038 obstack_free (&temporary_obstack, obstack_base (&temporary_obstack));
9039 QUALIFIED_P (node) = 1;
9043 /* Merge the two parts of a qualified name into LEFT. Set the
9044 location information of the resulting node to LOCATION, usually
9045 inherited from the location information of the `.' operator. */
9048 make_qualified_name (left, right, location)
9052 #ifdef USE_COMPONENT_REF
9053 tree node = build (COMPONENT_REF, NULL_TREE, left, right);
9054 EXPR_WFL_LINECOL (node) = location;
9057 tree left_id = EXPR_WFL_NODE (left);
9058 tree right_id = EXPR_WFL_NODE (right);
9061 merge = merge_qualified_name (left_id, right_id);
9063 /* Left wasn't qualified and is now qualified */
9064 if (!QUALIFIED_P (left_id))
9066 tree wfl = build_expr_wfl (left_id, ctxp->filename, 0, 0);
9067 EXPR_WFL_LINECOL (wfl) = EXPR_WFL_LINECOL (left);
9068 EXPR_WFL_QUALIFICATION (left) = build_tree_list (wfl, NULL_TREE);
9071 wfl = build_expr_wfl (right_id, ctxp->filename, 0, 0);
9072 EXPR_WFL_LINECOL (wfl) = location;
9073 chainon (EXPR_WFL_QUALIFICATION (left), build_tree_list (wfl, NULL_TREE));
9075 EXPR_WFL_NODE (left) = merge;
9080 /* Extract the last identifier component of the qualified in WFL. The
9081 last identifier is removed from the linked list */
9084 cut_identifier_in_qualified (wfl)
9088 tree previous = NULL_TREE;
9089 for (q = EXPR_WFL_QUALIFICATION (wfl); ; previous = q, q = TREE_CHAIN (q))
9090 if (!TREE_CHAIN (q))
9093 /* Operating on a non qualified qualified WFL. */
9096 TREE_CHAIN (previous) = NULL_TREE;
9097 return TREE_PURPOSE (q);
9101 /* Resolve the expression name NAME. Return its decl. */
9104 resolve_expression_name (id, orig)
9108 tree name = EXPR_WFL_NODE (id);
9111 /* 6.5.5.1: Simple expression names */
9112 if (!PRIMARY_P (id) && !QUALIFIED_P (name))
9114 /* 15.13.1: NAME can appear within the scope of a local variable
9116 if ((decl = IDENTIFIER_LOCAL_VALUE (name)))
9119 /* 15.13.1: NAME can appear within a class declaration */
9122 decl = lookup_field_wrapper (current_class, name);
9125 tree access = NULL_TREE;
9126 int fs = FIELD_STATIC (decl);
9128 /* If we're accessing an outer scope local alias, make
9129 sure we change the name of the field we're going to
9131 if (FIELD_LOCAL_ALIAS_USED (decl))
9132 name = DECL_NAME (decl);
9134 /* Instance variable (8.3.1.1) can't appear within
9135 static method, static initializer or initializer for
9136 a static variable. */
9137 if (!fs && METHOD_STATIC (current_function_decl))
9139 static_ref_err (id, name, current_class);
9140 return error_mark_node;
9142 /* Instance variables can't appear as an argument of
9143 an explicit constructor invocation */
9144 if (!fs && ctxp->explicit_constructor_p
9145 && !enclosing_context_p (DECL_CONTEXT (decl), current_class))
9148 (id, "Can't reference `%s' before the superclass constructor has been called", IDENTIFIER_POINTER (name));
9149 return error_mark_node;
9152 /* If we're processing an inner class and we're trying
9153 to access a field belonging to an outer class, build
9154 the access to the field */
9155 if (!fs && outer_field_access_p (current_class, decl))
9157 if (CLASS_STATIC (TYPE_NAME (current_class)))
9159 static_ref_err (id, DECL_NAME (decl), current_class);
9160 return error_mark_node;
9162 access = build_outer_field_access (id, decl);
9168 /* Otherwise build what it takes to access the field */
9169 access = build_field_ref ((fs ? NULL_TREE : current_this),
9170 DECL_CONTEXT (decl), name);
9172 access = maybe_build_class_init_for_field (decl, access);
9173 /* We may be asked to save the real field access node */
9176 /* And we return what we got */
9179 /* Fall down to error report on undefined variable */
9182 /* 6.5.5.2 Qualified Expression Names */
9187 qualify_ambiguous_name (id);
9188 /* 15.10.1 Field Access Using a Primary and/or Expression Name */
9189 /* 15.10.2: Accessing Superclass Members using super */
9190 return resolve_field_access (id, orig, NULL);
9193 /* We've got an error here */
9194 if (INNER_CLASS_TYPE_P (current_class))
9195 parse_error_context (id,
9196 "Local variable `%s' can't be accessed from within the inner class `%s' unless it is declared final",
9197 IDENTIFIER_POINTER (name),
9198 IDENTIFIER_POINTER (DECL_NAME
9199 (TYPE_NAME (current_class))));
9201 parse_error_context (id, "Undefined variable `%s'",
9202 IDENTIFIER_POINTER (name));
9204 return error_mark_node;
9208 static_ref_err (wfl, field_id, class_type)
9209 tree wfl, field_id, class_type;
9213 "Can't make a static reference to nonstatic variable `%s' in class `%s'",
9214 IDENTIFIER_POINTER (field_id),
9215 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (class_type))));
9218 /* 15.10.1 Field Acess Using a Primary and/or Expression Name.
9219 We return something suitable to generate the field access. We also
9220 return the field decl in FIELD_DECL and its type in FIELD_TYPE. If
9221 recipient's address can be null. */
9224 resolve_field_access (qual_wfl, field_decl, field_type)
9226 tree *field_decl, *field_type;
9230 tree decl, where_found, type_found;
9232 if (resolve_qualified_expression_name (qual_wfl, &decl,
9233 &where_found, &type_found))
9234 return error_mark_node;
9236 /* Resolve the LENGTH field of an array here */
9237 if (DECL_P (decl) && DECL_NAME (decl) == length_identifier_node
9238 && type_found && TYPE_ARRAY_P (type_found)
9239 && ! flag_emit_class_files && ! flag_emit_xref)
9241 tree length = build_java_array_length_access (where_found);
9244 /* In case we're dealing with a static array, we need to
9245 initialize its class before the array length can be fetched.
9246 It's also a good time to create a DECL_RTL for the field if
9247 none already exists, otherwise if the field was declared in a
9248 class found in an external file and hasn't been (and won't
9249 be) accessed for its value, none will be created. */
9250 if (TREE_CODE (where_found) == VAR_DECL && FIELD_STATIC (where_found))
9252 build_static_field_ref (where_found);
9253 field_ref = build_class_init (DECL_CONTEXT (where_found), field_ref);
9256 /* We might have been trying to resolve field.method(). In which
9257 case, the resolution is over and decl is the answer */
9258 else if (JDECL_P (decl) && IDENTIFIER_LOCAL_VALUE (DECL_NAME (decl)) == decl)
9260 else if (JDECL_P (decl))
9263 type_found = DECL_CONTEXT (decl);
9264 is_static = FIELD_STATIC (decl);
9265 field_ref = build_field_ref ((is_static && !flag_emit_xref?
9266 NULL_TREE : where_found),
9267 type_found, DECL_NAME (decl));
9268 if (field_ref == error_mark_node)
9269 return error_mark_node;
9271 field_ref = maybe_build_class_init_for_field (decl, field_ref);
9279 *field_type = (QUAL_DECL_TYPE (decl) ?
9280 QUAL_DECL_TYPE (decl) : TREE_TYPE (decl));
9284 /* If NODE is an access to f static field, strip out the class
9285 initialization part and return the field decl, otherwise, return
9289 strip_out_static_field_access_decl (node)
9292 if (TREE_CODE (node) == COMPOUND_EXPR)
9294 tree op1 = TREE_OPERAND (node, 1);
9295 if (TREE_CODE (op1) == COMPOUND_EXPR)
9297 tree call = TREE_OPERAND (op1, 0);
9298 if (TREE_CODE (call) == CALL_EXPR
9299 && TREE_CODE (TREE_OPERAND (call, 0)) == ADDR_EXPR
9300 && TREE_OPERAND (TREE_OPERAND (call, 0), 0)
9301 == soft_initclass_node)
9302 return TREE_OPERAND (op1, 1);
9304 else if (JDECL_P (op1))
9310 /* 6.5.5.2: Qualified Expression Names */
9313 resolve_qualified_expression_name (wfl, found_decl, where_found, type_found)
9315 tree *found_decl, *type_found, *where_found;
9317 int from_type = 0; /* Field search initiated from a type */
9318 int from_super = 0, from_cast = 0, from_qualified_this = 0;
9319 int previous_call_static = 0;
9321 tree decl = NULL_TREE, type = NULL_TREE, q;
9322 /* For certain for of inner class instantiation */
9323 tree saved_current, saved_this;
9324 #define RESTORE_THIS_AND_CURRENT_CLASS \
9325 { current_class = saved_current; current_this = saved_this;}
9327 *type_found = *where_found = NULL_TREE;
9329 for (q = EXPR_WFL_QUALIFICATION (wfl); q; q = TREE_CHAIN (q))
9331 tree qual_wfl = QUAL_WFL (q);
9332 tree ret_decl; /* for EH checking */
9333 int location; /* for EH checking */
9335 /* 15.10.1 Field Access Using a Primary */
9336 switch (TREE_CODE (qual_wfl))
9339 case NEW_CLASS_EXPR:
9340 /* If the access to the function call is a non static field,
9341 build the code to access it. */
9342 if (JDECL_P (decl) && !FIELD_STATIC (decl))
9344 decl = maybe_access_field (decl, *where_found,
9345 DECL_CONTEXT (decl));
9346 if (decl == error_mark_node)
9350 /* And code for the function call */
9351 if (complete_function_arguments (qual_wfl))
9354 /* We might have to setup a new current class and a new this
9355 for the search of an inner class, relative to the type of
9356 a expression resolved as `decl'. The current values are
9357 saved and restored shortly after */
9358 saved_current = current_class;
9359 saved_this = current_this;
9361 && (TREE_CODE (qual_wfl) == NEW_CLASS_EXPR
9362 || from_qualified_this))
9364 /* If we still have `from_qualified_this', we have the form
9365 <T>.this.f() and we need to build <T>.this */
9366 if (from_qualified_this)
9368 decl = build_access_to_thisn (current_class, type, 0);
9369 decl = java_complete_tree (decl);
9370 type = TREE_TYPE (TREE_TYPE (decl));
9372 current_class = type;
9373 current_this = decl;
9374 from_qualified_this = 0;
9377 if (from_super && TREE_CODE (qual_wfl) == CALL_EXPR)
9378 CALL_USING_SUPER (qual_wfl) = 1;
9379 location = (TREE_CODE (qual_wfl) == CALL_EXPR ?
9380 EXPR_WFL_LINECOL (TREE_OPERAND (qual_wfl, 0)) : 0);
9381 *where_found = patch_method_invocation (qual_wfl, decl, type,
9383 &is_static, &ret_decl);
9384 if (*where_found == error_mark_node)
9386 RESTORE_THIS_AND_CURRENT_CLASS;
9389 *type_found = type = QUAL_DECL_TYPE (*where_found);
9391 /* If we're creating an inner class instance, check for that
9392 an enclosing instance is in scope */
9393 if (TREE_CODE (qual_wfl) == NEW_CLASS_EXPR
9394 && INNER_ENCLOSING_SCOPE_CHECK (type))
9397 (qual_wfl, "No enclosing instance for inner class `%s' is in scope%s",
9398 lang_printable_name (type, 0),
9399 (!current_this ? "" :
9400 "; an explicit one must be provided when creating this inner class"));
9401 RESTORE_THIS_AND_CURRENT_CLASS;
9405 /* In case we had to change then to resolve a inner class
9406 instantiation using a primary qualified by a `new' */
9407 RESTORE_THIS_AND_CURRENT_CLASS;
9409 /* EH check. No check on access$<n> functions */
9411 && !OUTER_FIELD_ACCESS_IDENTIFIER_P
9412 (DECL_NAME (current_function_decl)))
9413 check_thrown_exceptions (location, ret_decl);
9415 /* If the previous call was static and this one is too,
9416 build a compound expression to hold the two (because in
9417 that case, previous function calls aren't transported as
9418 forcoming function's argument. */
9419 if (previous_call_static && is_static)
9421 decl = build (COMPOUND_EXPR, TREE_TYPE (*where_found),
9422 decl, *where_found);
9423 TREE_SIDE_EFFECTS (decl) = 1;
9427 previous_call_static = is_static;
9428 decl = *where_found;
9433 case NEW_ARRAY_EXPR:
9434 case NEW_ANONYMOUS_ARRAY_EXPR:
9435 *where_found = decl = java_complete_tree (qual_wfl);
9436 if (decl == error_mark_node)
9438 *type_found = type = QUAL_DECL_TYPE (decl);
9442 *where_found = decl = java_complete_tree (qual_wfl);
9443 if (decl == error_mark_node)
9445 *type_found = type = QUAL_DECL_TYPE (decl);
9449 case CONDITIONAL_EXPR:
9452 *where_found = decl = java_complete_tree (qual_wfl);
9453 if (decl == error_mark_node)
9455 *type_found = type = QUAL_DECL_TYPE (decl);
9459 /* If the access to the function call is a non static field,
9460 build the code to access it. */
9461 if (JDECL_P (decl) && !FIELD_STATIC (decl))
9463 decl = maybe_access_field (decl, *where_found, type);
9464 if (decl == error_mark_node)
9467 /* And code for the array reference expression */
9468 decl = java_complete_tree (qual_wfl);
9469 if (decl == error_mark_node)
9471 type = QUAL_DECL_TYPE (decl);
9475 if ((decl = java_complete_tree (qual_wfl)) == error_mark_node)
9477 if ((type = patch_string (decl)))
9479 *where_found = QUAL_RESOLUTION (q) = decl;
9480 *type_found = type = TREE_TYPE (decl);
9484 if ((decl = java_complete_tree (qual_wfl)) == error_mark_node)
9486 *where_found = QUAL_RESOLUTION (q) = decl;
9487 *type_found = type = TREE_TYPE (decl);
9491 /* Fix for -Wall Just go to the next statement. Don't
9496 /* If we fall here, we weren't processing a (static) function call. */
9497 previous_call_static = 0;
9499 /* It can be the keyword THIS */
9500 if (TREE_CODE (qual_wfl) == EXPR_WITH_FILE_LOCATION
9501 && EXPR_WFL_NODE (qual_wfl) == this_identifier_node)
9506 (wfl, "Keyword `this' used outside allowed context");
9509 if (ctxp->explicit_constructor_p
9510 && type == current_class)
9512 parse_error_context (wfl, "Can't reference `this' before the superclass constructor has been called");
9515 /* We have to generate code for intermediate acess */
9516 if (!from_type || TREE_TYPE (TREE_TYPE (current_this)) == type)
9518 *where_found = decl = current_this;
9519 *type_found = type = QUAL_DECL_TYPE (decl);
9521 /* We're trying to access the this from somewhere else. Make sure
9522 it's allowed before doing so. */
9525 if (!enclosing_context_p (type, current_class))
9527 char *p = xstrdup (lang_printable_name (type, 0));
9528 parse_error_context (qual_wfl, "Can't use variable `%s.this': type `%s' isn't an outer type of type `%s'",
9530 lang_printable_name (current_class, 0));
9534 from_qualified_this = 1;
9535 /* If there's nothing else after that, we need to
9536 produce something now, otherwise, the section of the
9537 code that needs to produce <T>.this will generate
9538 what is necessary. */
9539 if (!TREE_CHAIN (q))
9541 decl = build_access_to_thisn (current_class, type, 0);
9542 *where_found = decl = java_complete_tree (decl);
9543 *type_found = type = TREE_TYPE (decl);
9551 /* 15.10.2 Accessing Superclass Members using SUPER */
9552 if (TREE_CODE (qual_wfl) == EXPR_WITH_FILE_LOCATION
9553 && EXPR_WFL_NODE (qual_wfl) == super_identifier_node)
9556 /* Check on the restricted use of SUPER */
9557 if (METHOD_STATIC (current_function_decl)
9558 || current_class == object_type_node)
9561 (wfl, "Keyword `super' used outside allowed context");
9564 /* Otherwise, treat SUPER as (SUPER_CLASS)THIS */
9565 node = build_cast (EXPR_WFL_LINECOL (qual_wfl),
9566 CLASSTYPE_SUPER (current_class),
9567 build_this (EXPR_WFL_LINECOL (qual_wfl)));
9568 *where_found = decl = java_complete_tree (node);
9569 if (decl == error_mark_node)
9571 *type_found = type = QUAL_DECL_TYPE (decl);
9572 from_super = from_type = 1;
9576 /* 15.13.1: Can't search for field name in packages, so we
9577 assume a variable/class name was meant. */
9578 if (RESOLVE_PACKAGE_NAME_P (qual_wfl))
9580 tree name = resolve_package (wfl, &q);
9584 *where_found = decl = resolve_no_layout (name, qual_wfl);
9585 /* We want to be absolutely sure that the class is laid
9586 out. We're going to search something inside it. */
9587 *type_found = type = TREE_TYPE (decl);
9588 layout_class (type);
9591 /* Fix them all the way down, if any are left. */
9594 list = TREE_CHAIN (q);
9597 RESOLVE_EXPRESSION_NAME_P (QUAL_WFL (list)) = 1;
9598 RESOLVE_PACKAGE_NAME_P (QUAL_WFL (list)) = 0;
9599 list = TREE_CHAIN (list);
9605 if (from_super || from_cast)
9607 ((from_cast ? qual_wfl : wfl),
9608 "No variable `%s' defined in class `%s'",
9609 IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl)),
9610 lang_printable_name (type, 0));
9613 (qual_wfl, "Undefined variable or class name: `%s'",
9614 IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl)));
9619 /* We have a type name. It's been already resolved when the
9620 expression was qualified. */
9621 else if (RESOLVE_TYPE_NAME_P (qual_wfl) && QUAL_RESOLUTION (q))
9623 decl = QUAL_RESOLUTION (q);
9625 /* Sneak preview. If next we see a `new', we're facing a
9626 qualification with resulted in a type being selected
9627 instead of a field. Report the error */
9629 && TREE_CODE (TREE_PURPOSE (TREE_CHAIN (q))) == NEW_CLASS_EXPR)
9631 parse_error_context (qual_wfl, "Undefined variable `%s'",
9632 IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl)));
9636 if (not_accessible_p (TREE_TYPE (decl), decl, type, 0))
9639 (qual_wfl, "Can't access %s field `%s.%s' from `%s'",
9640 java_accstring_lookup (get_access_flags_from_decl (decl)),
9641 GET_TYPE_NAME (type),
9642 IDENTIFIER_POINTER (DECL_NAME (decl)),
9643 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class))));
9646 check_deprecation (qual_wfl, decl);
9648 type = TREE_TYPE (decl);
9651 /* We resolve an expression name */
9654 tree field_decl = NULL_TREE;
9656 /* If there exists an early resolution, use it. That occurs
9657 only once and we know that there are more things to
9658 come. Don't do that when processing something after SUPER
9659 (we need more thing to be put in place below */
9660 if (!from_super && QUAL_RESOLUTION (q))
9662 decl = QUAL_RESOLUTION (q);
9665 if (TREE_CODE (decl) == FIELD_DECL && !FIELD_STATIC (decl))
9668 *where_found = current_this;
9671 static_ref_err (qual_wfl, DECL_NAME (decl),
9675 if (outer_field_access_p (current_class, decl))
9676 decl = build_outer_field_access (qual_wfl, decl);
9680 *where_found = TREE_TYPE (decl);
9681 if (TREE_CODE (*where_found) == POINTER_TYPE)
9682 *where_found = TREE_TYPE (*where_found);
9687 /* Report and error if we're using a numerical litteral as a
9688 qualifier. It can only be an INTEGER_CST. */
9689 else if (TREE_CODE (qual_wfl) == INTEGER_CST)
9692 (wfl, "Can't use type `%s' as a qualifier",
9693 lang_printable_name (TREE_TYPE (qual_wfl), 0));
9697 /* We have to search for a field, knowing the type of its
9698 container. The flag FROM_TYPE indicates that we resolved
9699 the last member of the expression as a type name, which
9700 means that for the resolution of this field, we'll look
9701 for other errors than if it was resolved as a member of
9706 tree field_decl_type; /* For layout */
9708 if (!from_type && !JREFERENCE_TYPE_P (type))
9711 (qual_wfl, "Attempt to reference field `%s' in `%s %s'",
9712 IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl)),
9713 lang_printable_name (type, 0),
9714 IDENTIFIER_POINTER (DECL_NAME (field_decl)));
9718 field_decl = lookup_field_wrapper (type,
9719 EXPR_WFL_NODE (qual_wfl));
9721 /* Maybe what we're trying to access to is an inner
9722 class, only if decl is a TYPE_DECL. */
9723 if (!field_decl && TREE_CODE (decl) == TYPE_DECL)
9725 tree ptr, inner_decl;
9727 BUILD_PTR_FROM_NAME (ptr, EXPR_WFL_NODE (qual_wfl));
9728 inner_decl = resolve_class (decl, ptr, NULL_TREE, qual_wfl);
9731 check_inner_class_access (inner_decl, decl, qual_wfl);
9732 type = TREE_TYPE (inner_decl);
9739 if (field_decl == NULL_TREE)
9742 (qual_wfl, "No variable `%s' defined in type `%s'",
9743 IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl)),
9744 GET_TYPE_NAME (type));
9747 if (field_decl == error_mark_node)
9750 /* Layout the type of field_decl, since we may need
9751 it. Don't do primitive types or loaded classes. The
9752 situation of non primitive arrays may not handled
9753 properly here. FIXME */
9754 if (TREE_CODE (TREE_TYPE (field_decl)) == POINTER_TYPE)
9755 field_decl_type = TREE_TYPE (TREE_TYPE (field_decl));
9757 field_decl_type = TREE_TYPE (field_decl);
9758 if (!JPRIMITIVE_TYPE_P (field_decl_type)
9759 && !CLASS_LOADED_P (field_decl_type)
9760 && !TYPE_ARRAY_P (field_decl_type))
9761 resolve_and_layout (field_decl_type, NULL_TREE);
9763 /* Check on accessibility here */
9764 if (not_accessible_p (current_class, field_decl,
9765 DECL_CONTEXT (field_decl), from_super))
9769 "Can't access %s field `%s.%s' from `%s'",
9770 java_accstring_lookup
9771 (get_access_flags_from_decl (field_decl)),
9772 GET_TYPE_NAME (type),
9773 IDENTIFIER_POINTER (DECL_NAME (field_decl)),
9775 (DECL_NAME (TYPE_NAME (current_class))));
9778 check_deprecation (qual_wfl, field_decl);
9780 /* There are things to check when fields are accessed
9781 from type. There are no restrictions on a static
9782 declaration of the field when it is accessed from an
9784 is_static = FIELD_STATIC (field_decl);
9785 if (!from_super && from_type
9786 && !TYPE_INTERFACE_P (type)
9788 && (current_function_decl
9789 && METHOD_STATIC (current_function_decl)))
9791 static_ref_err (qual_wfl, EXPR_WFL_NODE (qual_wfl), type);
9794 from_cast = from_super = 0;
9796 /* It's an access from a type but it isn't static, we
9797 make it relative to `this'. */
9798 if (!is_static && from_type)
9799 decl = current_this;
9801 /* If we need to generate something to get a proper
9802 handle on what this field is accessed from, do it
9806 decl = maybe_access_field (decl, *where_found, *type_found);
9807 if (decl == error_mark_node)
9811 /* We want to keep the location were found it, and the type
9813 *where_found = decl;
9816 /* Generate the correct expression for field access from
9818 if (from_qualified_this)
9820 field_decl = build_outer_field_access (qual_wfl, field_decl);
9821 from_qualified_this = 0;
9824 /* This is the decl found and eventually the next one to
9829 type = QUAL_DECL_TYPE (decl);
9831 /* Sneak preview. If decl is qualified by a `new', report
9832 the error here to be accurate on the peculiar construct */
9834 && TREE_CODE (TREE_PURPOSE (TREE_CHAIN (q))) == NEW_CLASS_EXPR
9835 && !JREFERENCE_TYPE_P (type))
9837 parse_error_context (qual_wfl, "Attempt to reference field `new' in a `%s'",
9838 lang_printable_name (type, 0));
9842 /* `q' might have changed due to a after package resolution
9851 /* 6.6 Qualified name and access control. Returns 1 if MEMBER (a decl)
9852 can't be accessed from REFERENCE (a record type). If MEMBER
9853 features a protected access, we then use WHERE which, if non null,
9854 holds the type of MEMBER's access that is checked against
9855 6.6.2.1. This function should be used when decl is a field or a
9859 not_accessible_p (reference, member, where, from_super)
9860 tree reference, member;
9864 int access_flag = get_access_flags_from_decl (member);
9866 /* Inner classes are processed by check_inner_class_access */
9867 if (INNER_CLASS_TYPE_P (reference))
9870 /* Access always granted for members declared public */
9871 if (access_flag & ACC_PUBLIC)
9874 /* Check access on protected members */
9875 if (access_flag & ACC_PROTECTED)
9877 /* Access granted if it occurs from within the package
9878 containing the class in which the protected member is
9880 if (class_in_current_package (DECL_CONTEXT (member)))
9883 /* If accessed with the form `super.member', then access is granted */
9887 /* If where is active, access was made through a
9888 qualifier. Access is granted if the type of the qualifier is
9889 or is a sublass of the type the access made from (6.6.2.1.) */
9890 if (where && !inherits_from_p (reference, where))
9893 /* Otherwise, access is granted if occuring from the class where
9894 member is declared or a subclass of it. Find the right
9895 context to perform the check */
9896 if (PURE_INNER_CLASS_TYPE_P (reference))
9898 while (INNER_CLASS_TYPE_P (reference))
9900 if (inherits_from_p (reference, DECL_CONTEXT (member)))
9902 reference = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (reference)));
9905 if (inherits_from_p (reference, DECL_CONTEXT (member)))
9910 /* Check access on private members. Access is granted only if it
9911 occurs from within the class in which it is declared -- that does
9912 it for innerclasses too. */
9913 if (access_flag & ACC_PRIVATE)
9915 if (reference == DECL_CONTEXT (member))
9917 if (enclosing_context_p (reference, DECL_CONTEXT (member)))
9922 /* Default access are permitted only when occuring within the
9923 package in which the type (REFERENCE) is declared. In other words,
9924 REFERENCE is defined in the current package */
9926 return !class_in_current_package (reference);
9928 /* Otherwise, access is granted */
9932 /* Test deprecated decl access. */
9934 check_deprecation (wfl, decl)
9937 const char *file = DECL_SOURCE_FILE (decl);
9938 /* Complain if the field is deprecated and the file it was defined
9939 in isn't compiled at the same time the file which contains its
9941 if (DECL_DEPRECATED (decl)
9942 && !IS_A_COMMAND_LINE_FILENAME_P (get_identifier (file)))
9945 switch (TREE_CODE (decl))
9948 strcpy (the, "method");
9952 strcpy (the, "field");
9955 parse_warning_context (wfl, "The class `%s' has been deprecated",
9956 IDENTIFIER_POINTER (DECL_NAME (decl)));
9961 /* Don't issue a message if the context as been deprecated as a
9963 if (! CLASS_DEPRECATED (TYPE_NAME (DECL_CONTEXT (decl))))
9964 parse_warning_context
9965 (wfl, "The %s `%s' in class `%s' has been deprecated",
9966 the, lang_printable_name (decl, 0),
9967 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (DECL_CONTEXT (decl)))));
9971 /* Returns 1 if class was declared in the current package, 0 otherwise */
9974 class_in_current_package (class)
9977 static tree cache = NULL_TREE;
9984 qualified_flag = QUALIFIED_P (DECL_NAME (TYPE_NAME (class)));
9986 /* If the current package is empty and the name of CLASS is
9987 qualified, class isn't in the current package. If there is a
9988 current package and the name of the CLASS is not qualified, class
9989 isn't in the current package */
9990 if ((!ctxp->package && qualified_flag) || (ctxp->package && !qualified_flag))
9993 /* If there is not package and the name of CLASS isn't qualified,
9994 they belong to the same unnamed package */
9995 if (!ctxp->package && !qualified_flag)
9998 /* Compare the left part of the name of CLASS with the package name */
9999 breakdown_qualified (&left, NULL, DECL_NAME (TYPE_NAME (class)));
10000 if (ctxp->package == left)
10002 static int initialized_p;
10003 /* Register CACHE with the garbage collector. */
10004 if (!initialized_p)
10006 ggc_add_tree_root (&cache, 1);
10016 /* This function may generate code to access DECL from WHERE. This is
10017 done only if certain conditions meet. */
10020 maybe_access_field (decl, where, type)
10021 tree decl, where, type;
10023 if (TREE_CODE (decl) == FIELD_DECL && decl != current_this
10024 && !FIELD_STATIC (decl))
10025 decl = build_field_ref (where ? where : current_this,
10026 (type ? type : DECL_CONTEXT (decl)),
10031 /* Build a method invocation, by patching PATCH. If non NULL
10032 and according to the situation, PRIMARY and WHERE may be
10033 used. IS_STATIC is set to 1 if the invoked function is static. */
10036 patch_method_invocation (patch, primary, where, from_super,
10037 is_static, ret_decl)
10038 tree patch, primary, where;
10043 tree wfl = TREE_OPERAND (patch, 0);
10044 tree args = TREE_OPERAND (patch, 1);
10045 tree name = EXPR_WFL_NODE (wfl);
10047 int is_static_flag = 0;
10048 int is_super_init = 0;
10049 tree this_arg = NULL_TREE;
10050 int is_array_clone_call = 0;
10052 /* Should be overriden if everything goes well. Otherwise, if
10053 something fails, it should keep this value. It stop the
10054 evaluation of a bogus assignment. See java_complete_tree,
10055 MODIFY_EXPR: for the reasons why we sometimes want to keep on
10056 evaluating an assignment */
10057 TREE_TYPE (patch) = error_mark_node;
10059 /* Since lookup functions are messing with line numbers, save the
10061 java_parser_context_save_global ();
10063 /* 15.11.1: Compile-Time Step 1: Determine Class or Interface to Search */
10065 /* Resolution of qualified name, excluding constructors */
10066 if (QUALIFIED_P (name) && !CALL_CONSTRUCTOR_P (patch))
10068 tree identifier, identifier_wfl, type, resolved;
10069 /* Extract the last IDENTIFIER of the qualified
10070 expression. This is a wfl and we will use it's location
10071 data during error report. */
10072 identifier_wfl = cut_identifier_in_qualified (wfl);
10073 identifier = EXPR_WFL_NODE (identifier_wfl);
10075 /* Given the context, IDENTIFIER is syntactically qualified
10076 as a MethodName. We need to qualify what's before */
10077 qualify_ambiguous_name (wfl);
10078 resolved = resolve_field_access (wfl, NULL, NULL);
10080 if (resolved == error_mark_node)
10081 PATCH_METHOD_RETURN_ERROR ();
10083 type = GET_SKIP_TYPE (resolved);
10084 resolve_and_layout (type, NULL_TREE);
10086 if (JPRIMITIVE_TYPE_P (type))
10088 parse_error_context
10090 "Can't invoke a method on primitive type `%s'",
10091 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type))));
10092 PATCH_METHOD_RETURN_ERROR ();
10095 list = lookup_method_invoke (0, identifier_wfl, type, identifier, args);
10096 args = nreverse (args);
10098 /* We're resolving a call from a type */
10099 if (TREE_CODE (resolved) == TYPE_DECL)
10101 if (CLASS_INTERFACE (resolved))
10103 parse_error_context
10105 "Can't make static reference to method `%s' in interface `%s'",
10106 IDENTIFIER_POINTER (identifier),
10107 IDENTIFIER_POINTER (name));
10108 PATCH_METHOD_RETURN_ERROR ();
10110 if (list && !METHOD_STATIC (list))
10112 char *fct_name = xstrdup (lang_printable_name (list, 0));
10113 parse_error_context
10115 "Can't make static reference to method `%s %s' in class `%s'",
10116 lang_printable_name (TREE_TYPE (TREE_TYPE (list)), 0),
10117 fct_name, IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type))));
10119 PATCH_METHOD_RETURN_ERROR ();
10123 this_arg = primary = resolved;
10125 if (TYPE_ARRAY_P (type) && identifier == get_identifier ("clone"))
10126 is_array_clone_call = 1;
10128 /* IDENTIFIER_WFL will be used to report any problem further */
10129 wfl = identifier_wfl;
10131 /* Resolution of simple names, names generated after a primary: or
10135 tree class_to_search = NULL_TREE;
10136 int lc; /* Looking for Constructor */
10138 /* We search constructor in their target class */
10139 if (CALL_CONSTRUCTOR_P (patch))
10141 if (TREE_CODE (patch) == NEW_CLASS_EXPR)
10142 class_to_search = EXPR_WFL_NODE (wfl);
10143 else if (EXPR_WFL_NODE (TREE_OPERAND (patch, 0)) ==
10144 this_identifier_node)
10145 class_to_search = NULL_TREE;
10146 else if (EXPR_WFL_NODE (TREE_OPERAND (patch, 0)) ==
10147 super_identifier_node)
10150 if (CLASSTYPE_SUPER (current_class))
10152 DECL_NAME (TYPE_NAME (CLASSTYPE_SUPER (current_class)));
10155 parse_error_context (wfl, "Can't invoke super constructor on java.lang.Object");
10156 PATCH_METHOD_RETURN_ERROR ();
10160 /* Class to search is NULL if we're searching the current one */
10161 if (class_to_search)
10163 class_to_search = resolve_and_layout (class_to_search, wfl);
10165 if (!class_to_search)
10167 parse_error_context
10168 (wfl, "Class `%s' not found in type declaration",
10169 IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl)));
10170 PATCH_METHOD_RETURN_ERROR ();
10173 /* Can't instantiate an abstract class, but we can
10174 invoke it's constructor. It's use within the `new'
10175 context is denied here. */
10176 if (CLASS_ABSTRACT (class_to_search)
10177 && TREE_CODE (patch) == NEW_CLASS_EXPR)
10179 parse_error_context
10180 (wfl, "Class `%s' is an abstract class. It can't be instantiated",
10181 IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl)));
10182 PATCH_METHOD_RETURN_ERROR ();
10185 class_to_search = TREE_TYPE (class_to_search);
10188 class_to_search = current_class;
10191 /* This is a regular search in the local class, unless an
10192 alternate class is specified. */
10195 if (where != NULL_TREE)
10196 class_to_search = where;
10197 else if (QUALIFIED_P (name))
10198 class_to_search = current_class;
10201 class_to_search = current_class;
10205 if (has_method (class_to_search, name))
10207 if (! INNER_CLASS_TYPE_P (class_to_search))
10209 parse_error_context (wfl,
10210 "No method named `%s' in scope",
10211 IDENTIFIER_POINTER (name));
10212 PATCH_METHOD_RETURN_ERROR ();
10215 = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (class_to_search)));
10221 /* NAME is a simple identifier or comes from a primary. Search
10222 in the class whose declaration contain the method being
10224 resolve_and_layout (class_to_search, NULL_TREE);
10226 list = lookup_method_invoke (lc, wfl, class_to_search, name, args);
10227 /* Don't continue if no method were found, as the next statement
10228 can't be executed then. */
10230 PATCH_METHOD_RETURN_ERROR ();
10232 if (TYPE_ARRAY_P (class_to_search)
10233 && DECL_NAME (list) == get_identifier ("clone"))
10234 is_array_clone_call = 1;
10236 /* Check for static reference if non static methods */
10237 if (check_for_static_method_reference (wfl, patch, list,
10238 class_to_search, primary))
10239 PATCH_METHOD_RETURN_ERROR ();
10241 /* Check for inner classes creation from illegal contexts */
10242 if (lc && (INNER_CLASS_TYPE_P (class_to_search)
10243 && !CLASS_STATIC (TYPE_NAME (class_to_search)))
10244 && INNER_ENCLOSING_SCOPE_CHECK (class_to_search))
10246 parse_error_context
10247 (wfl, "No enclosing instance for inner class `%s' is in scope%s",
10248 lang_printable_name (class_to_search, 0),
10249 (!current_this ? "" :
10250 "; an explicit one must be provided when creating this inner class"));
10251 PATCH_METHOD_RETURN_ERROR ();
10254 /* Non static methods are called with the current object extra
10255 argument. If patch a `new TYPE()', the argument is the value
10256 returned by the object allocator. If method is resolved as a
10257 primary, use the primary otherwise use the current THIS. */
10258 args = nreverse (args);
10259 if (TREE_CODE (patch) != NEW_CLASS_EXPR)
10261 this_arg = primary ? primary : current_this;
10263 /* If we're using an access method, things are different.
10264 There are two familly of cases:
10266 1) We're not generating bytecodes:
10268 - LIST is non static. It's invocation is transformed from
10269 x(a1,...,an) into this$<n>.x(a1,....an).
10270 - LIST is static. It's invocation is transformed from
10271 x(a1,...,an) into TYPE_OF(this$<n>).x(a1,....an)
10273 2) We're generating bytecodes:
10275 - LIST is non static. It's invocation is transformed from
10276 x(a1,....,an) into access$<n>(this$<n>,a1,...,an).
10277 - LIST is static. It's invocation is transformed from
10278 x(a1,....,an) into TYPE_OF(this$<n>).x(a1,....an).
10280 Of course, this$<n> can be abitrary complex, ranging from
10281 this$0 (the immediate outer context) to
10282 access$0(access$0(...(this$0))).
10284 maybe_use_access_method returns a non zero value if the
10285 this_arg has to be moved into the (then generated) stub
10286 argument list. In the meantime, the selected function
10287 might have be replaced by a generated stub. */
10289 maybe_use_access_method (is_super_init, &list, &this_arg))
10291 args = tree_cons (NULL_TREE, this_arg, args);
10292 this_arg = NULL_TREE; /* So it doesn't get chained twice */
10297 /* Merge point of all resolution schemes. If we have nothing, this
10298 is an error, already signaled */
10300 PATCH_METHOD_RETURN_ERROR ();
10302 /* Check accessibility, position the is_static flag, build and
10304 if (not_accessible_p (DECL_CONTEXT (current_function_decl), list,
10305 (primary ? TREE_TYPE (TREE_TYPE (primary)) :
10306 NULL_TREE), from_super)
10307 /* Calls to clone() on array types are permitted as a special-case. */
10308 && !is_array_clone_call)
10310 const char *fct_name = IDENTIFIER_POINTER (DECL_NAME (list));
10311 const char *access =
10312 java_accstring_lookup (get_access_flags_from_decl (list));
10313 const char *klass =
10314 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (DECL_CONTEXT (list))));
10315 const char *refklass =
10316 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class)));
10317 const char *what = (DECL_CONSTRUCTOR_P (list)
10318 ? "constructor" : "method");
10319 /* FIXME: WFL yields the wrong message here but I don't know
10320 what else to use. */
10321 parse_error_context (wfl,
10322 "Can't access %s %s `%s.%s' from `%s'",
10323 access, what, klass, fct_name, refklass);
10324 PATCH_METHOD_RETURN_ERROR ();
10327 /* Deprecation check: check whether the method being invoked or the
10328 instance-being-created's type are deprecated. */
10329 if (TREE_CODE (patch) == NEW_CLASS_EXPR)
10330 check_deprecation (wfl, TYPE_NAME (DECL_CONTEXT (list)));
10332 check_deprecation (wfl, list);
10334 /* If invoking a innerclass constructor, there are hidden parameters
10336 if (TREE_CODE (patch) == NEW_CLASS_EXPR
10337 && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT (list)))
10339 /* And make sure we add the accessed local variables to be saved
10340 in field aliases. */
10341 args = build_alias_initializer_parameter_list
10342 (AIPL_FUNCTION_CTOR_INVOCATION, DECL_CONTEXT (list), args, NULL);
10344 /* Secretly pass the current_this/primary as a second argument */
10345 if (primary || current_this)
10348 tree this_type = (current_this ?
10349 TREE_TYPE (TREE_TYPE (current_this)) : NULL_TREE);
10350 /* Method's (list) enclosing context */
10351 tree mec = DECL_CONTEXT (TYPE_NAME (DECL_CONTEXT (list)));
10352 /* If we have a primary, use it. */
10354 extra_arg = primary;
10355 /* The current `this' is an inner class but isn't a direct
10356 enclosing context for the inner class we're trying to
10357 create. Build an access to the proper enclosing context
10359 else if (current_this && PURE_INNER_CLASS_TYPE_P (this_type)
10360 && this_type != TREE_TYPE (mec))
10363 extra_arg = build_access_to_thisn (current_class,
10364 TREE_TYPE (mec), 0);
10365 extra_arg = java_complete_tree (extra_arg);
10367 /* Otherwise, just use the current `this' as an enclosing
10370 extra_arg = current_this;
10371 args = tree_cons (NULL_TREE, extra_arg, args);
10374 args = tree_cons (NULL_TREE, integer_zero_node, args);
10377 /* This handles the situation where a constructor invocation needs
10378 to have an enclosing context passed as a second parameter (the
10379 constructor is one of an inner class. We extract it from the
10380 current function. */
10381 if ((is_super_init ||
10382 (TREE_CODE (patch) == CALL_EXPR && name == this_identifier_node))
10383 && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT (list)))
10385 tree enclosing_decl = DECL_CONTEXT (TYPE_NAME (current_class));
10388 if (ANONYMOUS_CLASS_P (current_class) || !DECL_CONTEXT (enclosing_decl))
10390 extra_arg = DECL_FUNCTION_BODY (current_function_decl);
10391 extra_arg = TREE_CHAIN (BLOCK_EXPR_DECLS (extra_arg));
10395 tree dest = TREE_TYPE (DECL_CONTEXT (enclosing_decl));
10397 build_access_to_thisn (TREE_TYPE (enclosing_decl), dest, 0);
10398 extra_arg = java_complete_tree (extra_arg);
10400 args = tree_cons (NULL_TREE, extra_arg, args);
10403 is_static_flag = METHOD_STATIC (list);
10404 if (! is_static_flag && this_arg != NULL_TREE)
10405 args = tree_cons (NULL_TREE, this_arg, args);
10407 /* In the context of an explicit constructor invocation, we can't
10408 invoke any method relying on `this'. Exceptions are: we're
10409 invoking a static function, primary exists and is not the current
10410 this, we're creating a new object. */
10411 if (ctxp->explicit_constructor_p
10413 && (!primary || primary == current_this)
10414 && (TREE_CODE (patch) != NEW_CLASS_EXPR))
10416 parse_error_context (wfl, "Can't reference `this' before the superclass constructor has been called");
10417 PATCH_METHOD_RETURN_ERROR ();
10419 java_parser_context_restore_global ();
10421 *is_static = is_static_flag;
10422 /* Sometimes, we want the decl of the selected method. Such as for
10426 patch = patch_invoke (patch, list, args);
10428 /* Now is a good time to insert the call to finit$ */
10429 if (is_super_init && CLASS_HAS_FINIT_P (current_class))
10431 tree finit_parms, finit_call;
10433 /* Prepare to pass hidden parameters to finit$, if any. */
10434 finit_parms = build_alias_initializer_parameter_list
10435 (AIPL_FUNCTION_FINIT_INVOCATION, current_class, NULL_TREE, NULL);
10438 build_method_invocation (build_wfl_node (finit_identifier_node),
10441 /* Generate the code used to initialize fields declared with an
10442 initialization statement and build a compound statement along
10443 with the super constructor invocation. */
10444 patch = build (COMPOUND_EXPR, void_type_node, patch,
10445 java_complete_tree (finit_call));
10446 CAN_COMPLETE_NORMALLY (patch) = 1;
10451 /* Check that we're not trying to do a static reference to a method in
10452 non static method. Return 1 if it's the case, 0 otherwise. */
10455 check_for_static_method_reference (wfl, node, method, where, primary)
10456 tree wfl, node, method, where, primary;
10458 if (METHOD_STATIC (current_function_decl)
10459 && !METHOD_STATIC (method) && !primary && !CALL_CONSTRUCTOR_P (node))
10461 char *fct_name = xstrdup (lang_printable_name (method, 0));
10462 parse_error_context
10463 (wfl, "Can't make static reference to method `%s %s' in class `%s'",
10464 lang_printable_name (TREE_TYPE (TREE_TYPE (method)), 0), fct_name,
10465 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (where))));
10472 /* Fix the invocation of *MDECL if necessary in the case of a
10473 invocation from an inner class. *THIS_ARG might be modified
10474 appropriately and an alternative access to *MDECL might be
10478 maybe_use_access_method (is_super_init, mdecl, this_arg)
10480 tree *mdecl, *this_arg;
10483 tree md = *mdecl, ta = *this_arg;
10485 int non_static_context = !METHOD_STATIC (md);
10488 || DECL_CONTEXT (md) == current_class
10489 || !PURE_INNER_CLASS_TYPE_P (current_class)
10490 || DECL_FINIT_P (md)
10491 || DECL_INSTINIT_P (md))
10494 /* If we're calling a method found in an enclosing class, generate
10495 what it takes to retrieve the right this. Don't do that if we're
10496 invoking a static method. Note that if MD's type is unrelated to
10497 CURRENT_CLASS, then the current this can be used. */
10499 if (non_static_context && DECL_CONTEXT (md) != object_type_node)
10501 ctx = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (current_class)));
10502 if (inherits_from_p (ctx, DECL_CONTEXT (md)))
10504 ta = build_current_thisn (current_class);
10505 ta = build_wfl_node (ta);
10512 maybe_build_thisn_access_method (type);
10513 if (inherits_from_p (type, DECL_CONTEXT (md)))
10515 ta = build_access_to_thisn (ctx, type, 0);
10518 type = (DECL_CONTEXT (TYPE_NAME (type)) ?
10519 TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type))) : NULL_TREE);
10522 ta = java_complete_tree (ta);
10525 /* We might have to use an access method to get to MD. We can
10526 break the method access rule as far as we're not generating
10528 if (METHOD_PRIVATE (md) && flag_emit_class_files)
10530 md = build_outer_method_access_method (md);
10537 /* Returnin a non zero value indicates we were doing a non static
10538 method invokation that is now a static invocation. It will have
10539 callee displace `this' to insert it in the regular argument
10541 return (non_static_context && to_return);
10544 /* Patch an invoke expression METHOD and ARGS, based on its invocation
10548 patch_invoke (patch, method, args)
10549 tree patch, method, args;
10552 tree original_call, t, ta;
10553 tree check = NULL_TREE;
10555 /* Last step for args: convert build-in types. If we're dealing with
10556 a new TYPE() type call, the first argument to the constructor
10557 isn't found in the incoming argument list, but delivered by
10559 t = TYPE_ARG_TYPES (TREE_TYPE (method));
10560 if (TREE_CODE (patch) == NEW_CLASS_EXPR)
10561 t = TREE_CHAIN (t);
10562 for (ta = args; t != end_params_node && ta;
10563 t = TREE_CHAIN (t), ta = TREE_CHAIN (ta))
10564 if (JPRIMITIVE_TYPE_P (TREE_TYPE (TREE_VALUE (ta))) &&
10565 TREE_TYPE (TREE_VALUE (ta)) != TREE_VALUE (t))
10566 TREE_VALUE (ta) = convert (TREE_VALUE (t), TREE_VALUE (ta));
10568 /* Resolve unresolved returned type isses */
10569 t = TREE_TYPE (TREE_TYPE (method));
10570 if (TREE_CODE (t) == POINTER_TYPE && !CLASS_LOADED_P (TREE_TYPE (t)))
10571 resolve_and_layout (TREE_TYPE (t), NULL);
10573 if (flag_emit_class_files || flag_emit_xref)
10577 tree signature = build_java_signature (TREE_TYPE (method));
10578 switch (invocation_mode (method, CALL_USING_SUPER (patch)))
10580 case INVOKE_VIRTUAL:
10581 dtable = invoke_build_dtable (0, args);
10582 func = build_invokevirtual (dtable, method);
10585 case INVOKE_NONVIRTUAL:
10586 /* If the object for the method call is null, we throw an
10587 exception. We don't do this if the object is the current
10588 method's `this'. In other cases we just rely on an
10589 optimization pass to eliminate redundant checks. */
10590 if (TREE_VALUE (args) != current_this)
10592 /* We use a save_expr here to make sure we only evaluate
10593 the new `self' expression once. */
10594 tree save_arg = save_expr (TREE_VALUE (args));
10595 TREE_VALUE (args) = save_arg;
10596 check = java_check_reference (save_arg, 1);
10598 /* Fall through. */
10601 case INVOKE_STATIC:
10602 func = build_known_method_ref (method, TREE_TYPE (method),
10603 DECL_CONTEXT (method),
10607 case INVOKE_INTERFACE:
10608 dtable = invoke_build_dtable (1, args);
10609 func = build_invokeinterface (dtable, method);
10616 /* Ensure self_type is initialized, (invokestatic). FIXME */
10617 func = build1 (NOP_EXPR, build_pointer_type (TREE_TYPE (method)), func);
10620 TREE_TYPE (patch) = TREE_TYPE (TREE_TYPE (method));
10621 TREE_OPERAND (patch, 0) = func;
10622 TREE_OPERAND (patch, 1) = args;
10623 original_call = patch;
10625 /* We're processing a `new TYPE ()' form. New is called and its
10626 returned value is the first argument to the constructor. We build
10627 a COMPOUND_EXPR and use saved expression so that the overall NEW
10628 expression value is a pointer to a newly created and initialized
10630 if (TREE_CODE (original_call) == NEW_CLASS_EXPR)
10632 tree class = DECL_CONTEXT (method);
10633 tree c1, saved_new, size, new;
10634 if (flag_emit_class_files || flag_emit_xref)
10636 TREE_TYPE (patch) = build_pointer_type (class);
10639 if (!TYPE_SIZE (class))
10640 safe_layout_class (class);
10641 size = size_in_bytes (class);
10642 new = build (CALL_EXPR, promote_type (class),
10643 build_address_of (alloc_object_node),
10644 tree_cons (NULL_TREE, build_class_ref (class),
10645 build_tree_list (NULL_TREE,
10646 size_in_bytes (class))),
10648 saved_new = save_expr (new);
10649 c1 = build_tree_list (NULL_TREE, saved_new);
10650 TREE_CHAIN (c1) = TREE_OPERAND (original_call, 1);
10651 TREE_OPERAND (original_call, 1) = c1;
10652 TREE_SET_CODE (original_call, CALL_EXPR);
10653 patch = build (COMPOUND_EXPR, TREE_TYPE (new), patch, saved_new);
10656 /* If CHECK is set, then we are building a check to see if the object
10658 if (check != NULL_TREE)
10660 patch = build (COMPOUND_EXPR, TREE_TYPE (patch), check, patch);
10661 TREE_SIDE_EFFECTS (patch) = 1;
10664 /* In order to be able to modify PATCH later, we SAVE_EXPR it and
10665 put it as the first expression of a COMPOUND_EXPR. The second
10666 expression being an empty statement to be later patched if
10667 necessary. We remember a TREE_LIST (the PURPOSE is the method,
10668 the VALUE is the compound) in a hashtable and return a
10669 COMPOUND_EXPR built so that the result of the evaluation of the
10670 original PATCH node is returned. */
10671 if (STATIC_CLASS_INIT_OPT_P ()
10672 && current_function_decl && METHOD_STATIC (method))
10675 tree fndecl = current_function_decl;
10676 tree save = save_expr (patch);
10677 tree type = TREE_TYPE (patch);
10679 patch = build (COMPOUND_EXPR, type, save, empty_stmt_node);
10680 list = build_tree_list (method, patch);
10682 hash_lookup (&DECL_FUNCTION_STATIC_METHOD_INVOCATION_COMPOUND (fndecl),
10683 (const hash_table_key) list, TRUE, NULL);
10685 patch = build (COMPOUND_EXPR, type, patch, save);
10692 invocation_mode (method, super)
10696 int access = get_access_flags_from_decl (method);
10699 return INVOKE_SUPER;
10701 if (access & ACC_STATIC)
10702 return INVOKE_STATIC;
10704 /* We have to look for a constructor before we handle nonvirtual
10705 calls; otherwise the constructor will look nonvirtual. */
10706 if (DECL_CONSTRUCTOR_P (method))
10707 return INVOKE_STATIC;
10709 if (access & ACC_FINAL || access & ACC_PRIVATE)
10710 return INVOKE_NONVIRTUAL;
10712 if (CLASS_FINAL (TYPE_NAME (DECL_CONTEXT (method))))
10713 return INVOKE_NONVIRTUAL;
10715 if (CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (method))))
10716 return INVOKE_INTERFACE;
10718 return INVOKE_VIRTUAL;
10721 /* Retrieve a refined list of matching methods. It covers the step
10722 15.11.2 (Compile-Time Step 2) */
10725 lookup_method_invoke (lc, cl, class, name, arg_list)
10728 tree class, name, arg_list;
10730 tree atl = end_params_node; /* Arg Type List */
10731 tree method, signature, list, node;
10732 const char *candidates; /* Used for error report */
10735 /* Fix the arguments */
10736 for (node = arg_list; node; node = TREE_CHAIN (node))
10738 tree current_arg = TREE_TYPE (TREE_VALUE (node));
10739 /* Non primitive type may have to be resolved */
10740 if (!JPRIMITIVE_TYPE_P (current_arg))
10741 resolve_and_layout (current_arg, NULL_TREE);
10743 if (TREE_CODE (current_arg) == RECORD_TYPE)
10744 current_arg = promote_type (current_arg);
10745 atl = tree_cons (NULL_TREE, current_arg, atl);
10748 /* Presto. If we're dealing with an anonymous class and a
10749 constructor call, generate the right constructor now, since we
10750 know the arguments' types. */
10752 if (lc && ANONYMOUS_CLASS_P (class))
10753 craft_constructor (TYPE_NAME (class), atl);
10755 /* Find all candidates and then refine the list, searching for the
10756 most specific method. */
10757 list = find_applicable_accessible_methods_list (lc, class, name, atl);
10758 list = find_most_specific_methods_list (list);
10759 if (list && !TREE_CHAIN (list))
10760 return TREE_VALUE (list);
10762 /* Issue an error. List candidates if any. Candidates are listed
10763 only if accessible (non accessible methods may end-up here for
10764 the sake of a better error report). */
10769 obstack_grow (&temporary_obstack, ". Candidates are:\n", 18);
10770 for (current = list; current; current = TREE_CHAIN (current))
10772 tree cm = TREE_VALUE (current);
10773 char string [4096];
10774 if (!cm || not_accessible_p (class, cm, NULL_TREE, 0))
10777 (string, " `%s' in `%s'%s",
10778 get_printable_method_name (cm),
10779 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (DECL_CONTEXT (cm)))),
10780 (TREE_CHAIN (current) ? "\n" : ""));
10781 obstack_grow (&temporary_obstack, string, strlen (string));
10783 obstack_1grow (&temporary_obstack, '\0');
10784 candidates = obstack_finish (&temporary_obstack);
10786 /* Issue the error message */
10787 method = make_node (FUNCTION_TYPE);
10788 TYPE_ARG_TYPES (method) = atl;
10789 signature = build_java_argument_signature (method);
10790 dup = xstrdup (lang_printable_name (class, 0));
10791 parse_error_context (cl, "Can't find %s `%s(%s)' in type `%s'%s",
10792 (lc ? "constructor" : "method"),
10793 (lc ? dup : IDENTIFIER_POINTER (name)),
10794 IDENTIFIER_POINTER (signature), dup,
10795 (candidates ? candidates : ""));
10800 /* 15.11.2.1: Find Methods that are Applicable and Accessible. LC is 1
10801 when we're looking for a constructor. */
10804 find_applicable_accessible_methods_list (lc, class, name, arglist)
10806 tree class, name, arglist;
10808 static struct hash_table t, *searched_classes = NULL;
10809 static int search_not_done = 0;
10810 tree list = NULL_TREE, all_list = NULL_TREE;
10812 /* Check the hash table to determine if this class has been searched
10814 if (searched_classes)
10816 if (hash_lookup (searched_classes,
10817 (const hash_table_key) class, FALSE, NULL))
10822 hash_table_init (&t, hash_newfunc, java_hash_hash_tree_node,
10823 java_hash_compare_tree_node);
10824 searched_classes = &t;
10828 hash_lookup (searched_classes,
10829 (const hash_table_key) class, TRUE, NULL);
10831 if (!CLASS_LOADED_P (class) && !CLASS_FROM_SOURCE_P (class))
10833 load_class (class, 1);
10834 safe_layout_class (class);
10837 /* Search interfaces */
10838 if (TREE_CODE (TYPE_NAME (class)) == TYPE_DECL
10839 && CLASS_INTERFACE (TYPE_NAME (class)))
10842 tree basetype_vec = TYPE_BINFO_BASETYPES (class);
10843 search_applicable_methods_list (lc, TYPE_METHODS (class),
10844 name, arglist, &list, &all_list);
10845 n = TREE_VEC_LENGTH (basetype_vec);
10846 for (i = 1; i < n; i++)
10848 tree t = BINFO_TYPE (TREE_VEC_ELT (basetype_vec, i));
10851 rlist = find_applicable_accessible_methods_list (lc, t, name,
10853 list = chainon (rlist, list);
10856 /* Search classes */
10859 search_applicable_methods_list (lc, TYPE_METHODS (class),
10860 name, arglist, &list, &all_list);
10862 /* When looking finit$, class$ or instinit$, we turn LC to 1 so
10863 that we only search in class. Note that we should have found
10864 something at this point. */
10865 if (ID_FINIT_P (name) || ID_CLASSDOLLAR_P (name) || ID_INSTINIT_P (name))
10872 /* We must search all interfaces of this class */
10875 tree basetype_vec = TYPE_BINFO_BASETYPES (class);
10876 int n = TREE_VEC_LENGTH (basetype_vec), i;
10877 for (i = 1; i < n; i++)
10879 tree t = BINFO_TYPE (TREE_VEC_ELT (basetype_vec, i));
10880 if (t != object_type_node)
10883 = find_applicable_accessible_methods_list (lc, t,
10885 list = chainon (rlist, list);
10890 /* Search superclass */
10891 if (!lc && CLASSTYPE_SUPER (class) != NULL_TREE)
10894 class = CLASSTYPE_SUPER (class);
10895 rlist = find_applicable_accessible_methods_list (lc, class,
10897 list = chainon (rlist, list);
10903 /* We're done. Reset the searched classes list and finally search
10904 java.lang.Object if it wasn't searched already. */
10905 if (!search_not_done)
10908 && TYPE_METHODS (object_type_node)
10909 && !hash_lookup (searched_classes,
10910 (const hash_table_key) object_type_node,
10913 search_applicable_methods_list (lc,
10914 TYPE_METHODS (object_type_node),
10915 name, arglist, &list, &all_list);
10917 hash_table_free (searched_classes);
10918 searched_classes = NULL;
10921 /* Either return the list obtained or all selected (but
10922 inaccessible) methods for better error report. */
10923 return (!list ? all_list : list);
10926 /* Effectively search for the appropriate method in method */
10929 search_applicable_methods_list (lc, method, name, arglist, list, all_list)
10931 tree method, name, arglist;
10932 tree *list, *all_list;
10934 for (; method; method = TREE_CHAIN (method))
10936 /* When dealing with constructor, stop here, otherwise search
10938 if (lc && !DECL_CONSTRUCTOR_P (method))
10940 else if (!lc && (DECL_CONSTRUCTOR_P (method)
10941 || (DECL_NAME (method) != name)))
10944 if (argument_types_convertible (method, arglist))
10946 /* Retain accessible methods only */
10947 if (!not_accessible_p (DECL_CONTEXT (current_function_decl),
10948 method, NULL_TREE, 0))
10949 *list = tree_cons (NULL_TREE, method, *list);
10951 /* Also retain all selected method here */
10952 *all_list = tree_cons (NULL_TREE, method, *list);
10957 /* 15.11.2.2 Choose the Most Specific Method */
10960 find_most_specific_methods_list (list)
10964 int abstract, candidates;
10965 tree current, new_list = NULL_TREE;
10966 for (current = list; current; current = TREE_CHAIN (current))
10969 DECL_SPECIFIC_COUNT (TREE_VALUE (current)) = 0;
10971 for (method = list; method; method = TREE_CHAIN (method))
10973 tree method_v, current_v;
10974 /* Don't test a method against itself */
10975 if (method == current)
10978 method_v = TREE_VALUE (method);
10979 current_v = TREE_VALUE (current);
10981 /* Compare arguments and location where methods where declared */
10982 if (argument_types_convertible (method_v, current_v))
10984 if (valid_method_invocation_conversion_p
10985 (DECL_CONTEXT (method_v), DECL_CONTEXT (current_v))
10986 || (INNER_CLASS_TYPE_P (DECL_CONTEXT (current_v))
10987 && enclosing_context_p (DECL_CONTEXT (method_v),
10988 DECL_CONTEXT (current_v))))
10990 int v = (DECL_SPECIFIC_COUNT (current_v) +=
10991 (INNER_CLASS_TYPE_P (DECL_CONTEXT (current_v)) ? 2 : 1));
10992 max = (v > max ? v : max);
10998 /* Review the list and select the maximally specific methods */
10999 for (current = list, abstract = -1, candidates = -1;
11000 current; current = TREE_CHAIN (current))
11001 if (DECL_SPECIFIC_COUNT (TREE_VALUE (current)) == max)
11003 new_list = tree_cons (NULL_TREE, TREE_VALUE (current), new_list);
11004 abstract += (METHOD_ABSTRACT (TREE_VALUE (current)) ? 1 : 0);
11008 /* If we have several and they're all abstract, just pick the
11010 if (candidates > 0 && (candidates == abstract))
11012 new_list = nreverse (new_list);
11013 TREE_CHAIN (new_list) = NULL_TREE;
11016 /* We have several (we couldn't find a most specific), all but one
11017 are abstract, we pick the only non abstract one. */
11018 if (candidates > 0 && (candidates == abstract+1))
11020 for (current = new_list; current; current = TREE_CHAIN (current))
11021 if (!METHOD_ABSTRACT (TREE_VALUE (current)))
11023 TREE_CHAIN (current) = NULL_TREE;
11024 new_list = current;
11028 /* If we can't find one, lower expectations and try to gather multiple
11029 maximally specific methods */
11030 while (!new_list && max)
11034 if (DECL_SPECIFIC_COUNT (TREE_VALUE (current)) == max)
11035 new_list = tree_cons (NULL_TREE, TREE_VALUE (current), new_list);
11042 /* Make sure that the type of each M2_OR_ARGLIST arguments can be
11043 converted by method invocation conversion (5.3) to the type of the
11044 corresponding parameter of M1. Implementation expects M2_OR_ARGLIST
11045 to change less often than M1. */
11048 argument_types_convertible (m1, m2_or_arglist)
11049 tree m1, m2_or_arglist;
11051 static tree m2_arg_value = NULL_TREE;
11052 static tree m2_arg_cache = NULL_TREE;
11053 static int initialized_p;
11055 register tree m1_arg, m2_arg;
11057 /* Register M2_ARG_VALUE and M2_ARG_CACHE with the garbage
11059 if (!initialized_p)
11061 ggc_add_tree_root (&m2_arg_value, 1);
11062 ggc_add_tree_root (&m2_arg_cache, 1);
11066 SKIP_THIS_AND_ARTIFICIAL_PARMS (m1_arg, m1)
11068 if (m2_arg_value == m2_or_arglist)
11069 m2_arg = m2_arg_cache;
11072 /* M2_OR_ARGLIST can be a function DECL or a raw list of
11074 if (m2_or_arglist && TREE_CODE (m2_or_arglist) == FUNCTION_DECL)
11076 m2_arg = TYPE_ARG_TYPES (TREE_TYPE (m2_or_arglist));
11077 if (!METHOD_STATIC (m2_or_arglist))
11078 m2_arg = TREE_CHAIN (m2_arg);
11081 m2_arg = m2_or_arglist;
11083 m2_arg_value = m2_or_arglist;
11084 m2_arg_cache = m2_arg;
11087 while (m1_arg != end_params_node && m2_arg != end_params_node)
11089 resolve_and_layout (TREE_VALUE (m1_arg), NULL_TREE);
11090 if (!valid_method_invocation_conversion_p (TREE_VALUE (m1_arg),
11091 TREE_VALUE (m2_arg)))
11093 m1_arg = TREE_CHAIN (m1_arg);
11094 m2_arg = TREE_CHAIN (m2_arg);
11096 return m1_arg == end_params_node && m2_arg == end_params_node;
11099 /* Qualification routines */
11102 qualify_ambiguous_name (id)
11105 tree qual, qual_wfl, name = NULL_TREE, decl, ptr_type = NULL_TREE,
11106 saved_current_class;
11107 int again, super_found = 0, this_found = 0, new_array_found = 0;
11110 /* We first qualify the first element, then derive qualification of
11111 others based on the first one. If the first element is qualified
11112 by a resolution (field or type), this resolution is stored in the
11113 QUAL_RESOLUTION of the qual element being examined. We need to
11114 save the current_class since the use of SUPER might change the
11116 saved_current_class = current_class;
11117 qual = EXPR_WFL_QUALIFICATION (id);
11120 /* Simple qualified expression feature a qual_wfl that is a
11121 WFL. Expression derived from a primary feature more complicated
11122 things like a CALL_EXPR. Expression from primary need to be
11123 worked out to extract the part on which the qualification will
11125 qual_wfl = QUAL_WFL (qual);
11126 switch (TREE_CODE (qual_wfl))
11129 qual_wfl = TREE_OPERAND (qual_wfl, 0);
11130 if (TREE_CODE (qual_wfl) != EXPR_WITH_FILE_LOCATION)
11132 qual = EXPR_WFL_QUALIFICATION (qual_wfl);
11133 qual_wfl = QUAL_WFL (qual);
11136 case NEW_ARRAY_EXPR:
11137 case NEW_ANONYMOUS_ARRAY_EXPR:
11138 qual = TREE_CHAIN (qual);
11139 again = new_array_found = 1;
11143 case NEW_CLASS_EXPR:
11144 qual_wfl = TREE_OPERAND (qual_wfl, 0);
11147 while (TREE_CODE (qual_wfl) == ARRAY_REF)
11148 qual_wfl = TREE_OPERAND (qual_wfl, 0);
11151 qual = TREE_CHAIN (qual);
11152 qual_wfl = QUAL_WFL (qual);
11154 case CLASS_LITERAL:
11155 qual = TREE_CHAIN (qual);
11156 qual_wfl = QUAL_WFL (qual);
11159 /* Fix for -Wall. Just break doing nothing */
11163 ptr_type = current_class;
11165 code = TREE_CODE (qual_wfl);
11167 /* Pos evaluation: non WFL leading expression nodes */
11168 if (code == CONVERT_EXPR
11169 && TREE_CODE (TREE_TYPE (qual_wfl)) == EXPR_WITH_FILE_LOCATION)
11170 name = EXPR_WFL_NODE (TREE_TYPE (qual_wfl));
11172 else if (code == INTEGER_CST)
11175 else if (code == CONVERT_EXPR &&
11176 TREE_CODE (TREE_OPERAND (qual_wfl, 0)) == EXPR_WITH_FILE_LOCATION)
11177 name = TREE_OPERAND (qual_wfl, 0);
11179 else if ((code == ARRAY_REF || code == CALL_EXPR || code == MODIFY_EXPR) &&
11180 TREE_CODE (TREE_OPERAND (qual_wfl, 0)) == EXPR_WITH_FILE_LOCATION)
11181 name = EXPR_WFL_NODE (TREE_OPERAND (qual_wfl, 0));
11183 else if (code == TREE_LIST)
11184 name = EXPR_WFL_NODE (TREE_PURPOSE (qual_wfl));
11186 else if (code == STRING_CST || code == CONDITIONAL_EXPR
11187 || code == PLUS_EXPR)
11189 qual = TREE_CHAIN (qual);
11190 qual_wfl = QUAL_WFL (qual);
11195 name = EXPR_WFL_NODE (qual_wfl);
11198 qual = EXPR_WFL_QUALIFICATION (qual_wfl);
11203 /* If we have a THIS (from a primary), we set the context accordingly */
11204 if (name == this_identifier_node)
11206 /* This isn't really elegant. One more added irregularity
11207 before I start using COMPONENT_REF (hopefully very soon.) */
11208 if (TREE_CODE (TREE_PURPOSE (qual)) == ARRAY_REF
11209 && TREE_CODE (TREE_OPERAND (TREE_PURPOSE (qual), 0)) ==
11210 EXPR_WITH_FILE_LOCATION
11211 && EXPR_WFL_NODE (TREE_OPERAND (TREE_PURPOSE (qual), 0)) ==
11212 this_identifier_node)
11214 qual = TREE_OPERAND (TREE_PURPOSE (qual), 0);
11215 qual = EXPR_WFL_QUALIFICATION (qual);
11217 qual = TREE_CHAIN (qual);
11218 qual_wfl = QUAL_WFL (qual);
11219 if (TREE_CODE (qual_wfl) == CALL_EXPR)
11221 else if (TREE_CODE (qual_wfl) == EXPR_WITH_FILE_LOCATION)
11222 name = EXPR_WFL_NODE (qual_wfl);
11223 else if (TREE_CODE (qual_wfl) == NEW_CLASS_EXPR)
11224 name = TREE_OPERAND (qual_wfl, 0);
11227 /* If we have a SUPER, we set the context accordingly */
11228 if (name == super_identifier_node)
11230 current_class = CLASSTYPE_SUPER (ptr_type);
11231 /* Check that there is such a thing as a super class. If not,
11232 return. The error will be caught later on, during the
11234 if (!current_class)
11236 current_class = saved_current_class;
11239 qual = TREE_CHAIN (qual);
11240 /* Do one more interation to set things up */
11241 super_found = again = 1;
11245 /* If name appears within the scope of a local variable declaration
11246 or parameter declaration, then it is an expression name. We don't
11247 carry this test out if we're in the context of the use of SUPER
11249 if (!this_found && !super_found
11250 && TREE_CODE (name) != STRING_CST && TREE_CODE (name) != INTEGER_CST
11251 && (decl = IDENTIFIER_LOCAL_VALUE (name)))
11253 RESOLVE_EXPRESSION_NAME_P (qual_wfl) = 1;
11254 QUAL_RESOLUTION (qual) = decl;
11257 /* If within the class/interface NAME was found to be used there
11258 exists a (possibly inherited) field named NAME, then this is an
11259 expression name. If we saw a NEW_ARRAY_EXPR before and want to
11260 address length, it is OK. */
11261 else if ((decl = lookup_field_wrapper (ptr_type, name))
11262 || name == length_identifier_node)
11264 RESOLVE_EXPRESSION_NAME_P (qual_wfl) = 1;
11265 QUAL_RESOLUTION (qual) = (new_array_found ? NULL_TREE : decl);
11268 /* We reclassify NAME as yielding to a type name resolution if:
11269 - NAME is a class/interface declared within the compilation
11270 unit containing NAME,
11271 - NAME is imported via a single-type-import declaration,
11272 - NAME is declared in an another compilation unit of the package
11273 of the compilation unit containing NAME,
11274 - NAME is declared by exactly on type-import-on-demand declaration
11275 of the compilation unit containing NAME.
11276 - NAME is actually a STRING_CST.
11277 This can't happen if the expression was qualified by `this.' */
11278 else if (! this_found &&
11279 (TREE_CODE (name) == STRING_CST ||
11280 TREE_CODE (name) == INTEGER_CST ||
11281 (decl = resolve_and_layout (name, NULL_TREE))))
11283 RESOLVE_TYPE_NAME_P (qual_wfl) = 1;
11284 QUAL_RESOLUTION (qual) = decl;
11287 /* Method call, array references and cast are expression name */
11288 else if (TREE_CODE (QUAL_WFL (qual)) == CALL_EXPR
11289 || TREE_CODE (QUAL_WFL (qual)) == ARRAY_REF
11290 || TREE_CODE (QUAL_WFL (qual)) == CONVERT_EXPR
11291 || TREE_CODE (QUAL_WFL (qual)) == MODIFY_EXPR)
11292 RESOLVE_EXPRESSION_NAME_P (qual_wfl) = 1;
11294 /* Check here that NAME isn't declared by more than one
11295 type-import-on-demand declaration of the compilation unit
11296 containing NAME. FIXME */
11298 /* Otherwise, NAME is reclassified as a package name */
11300 RESOLVE_PACKAGE_NAME_P (qual_wfl) = 1;
11302 /* Propagate the qualification accross other components of the
11304 for (qual = TREE_CHAIN (qual); qual;
11305 qual_wfl = QUAL_WFL (qual), qual = TREE_CHAIN (qual))
11307 if (RESOLVE_PACKAGE_NAME_P (qual_wfl))
11308 RESOLVE_PACKAGE_NAME_P (QUAL_WFL (qual)) = 1;
11310 RESOLVE_EXPRESSION_NAME_P (QUAL_WFL (qual)) = 1;
11313 /* Store the global qualification for the ambiguous part of ID back
11315 if (RESOLVE_EXPRESSION_NAME_P (qual_wfl))
11316 RESOLVE_EXPRESSION_NAME_P (id) = 1;
11317 else if (RESOLVE_TYPE_NAME_P (qual_wfl))
11318 RESOLVE_TYPE_NAME_P (id) = 1;
11319 else if (RESOLVE_PACKAGE_NAME_P (qual_wfl))
11320 RESOLVE_PACKAGE_NAME_P (id) = 1;
11322 /* Restore the current class */
11323 current_class = saved_current_class;
11327 breakdown_qualified (left, right, source)
11328 tree *left, *right, source;
11331 int l = IDENTIFIER_LENGTH (source);
11333 base = alloca (l + 1);
11334 memcpy (base, IDENTIFIER_POINTER (source), l + 1);
11336 /* Breakdown NAME into REMAINDER . IDENTIFIER */
11338 while (*p != '.' && p != base)
11341 /* We didn't find a '.'. Return an error */
11347 *right = get_identifier (p+1);
11348 *left = get_identifier (base);
11353 /* Return TRUE if two classes are from the same package. */
11356 in_same_package (name1, name2)
11363 if (TREE_CODE (name1) == TYPE_DECL)
11364 name1 = DECL_NAME (name1);
11365 if (TREE_CODE (name2) == TYPE_DECL)
11366 name2 = DECL_NAME (name2);
11368 if (QUALIFIED_P (name1) != QUALIFIED_P (name2))
11369 /* One in empty package. */
11372 if (QUALIFIED_P (name1) == 0 && QUALIFIED_P (name2) == 0)
11373 /* Both in empty package. */
11376 breakdown_qualified (&pkg1, &tmp, name1);
11377 breakdown_qualified (&pkg2, &tmp, name2);
11379 return (pkg1 == pkg2);
11382 /* Patch tree nodes in a function body. When a BLOCK is found, push
11383 local variable decls if present.
11384 Same as java_complete_lhs, but does resolve static finals to values. */
11387 java_complete_tree (node)
11390 node = java_complete_lhs (node);
11391 if (JDECL_P (node) && CLASS_FINAL_VARIABLE_P (node)
11392 && DECL_INITIAL (node) != NULL_TREE
11393 && !flag_emit_xref)
11395 tree value = DECL_INITIAL (node);
11396 DECL_INITIAL (node) = NULL_TREE;
11397 value = fold_constant_for_init (value, node);
11398 DECL_INITIAL (node) = value;
11399 if (value != NULL_TREE)
11401 /* fold_constant_for_init sometimes widen the original type
11402 of the constant (i.e. byte to int.) It's not desirable,
11403 especially if NODE is a function argument. */
11404 if (TREE_CODE (value) == INTEGER_CST
11405 && TREE_TYPE (node) != TREE_TYPE (value))
11406 return convert (TREE_TYPE (node), value);
11411 DECL_FIELD_FINAL_IUD (node) = 0;
11417 java_stabilize_reference (node)
11420 if (TREE_CODE (node) == COMPOUND_EXPR)
11422 tree op0 = TREE_OPERAND (node, 0);
11423 tree op1 = TREE_OPERAND (node, 1);
11424 TREE_OPERAND (node, 0) = save_expr (op0);
11425 TREE_OPERAND (node, 1) = java_stabilize_reference (op1);
11428 return stabilize_reference (node);
11431 /* Patch tree nodes in a function body. When a BLOCK is found, push
11432 local variable decls if present.
11433 Same as java_complete_tree, but does not resolve static finals to values. */
11436 java_complete_lhs (node)
11439 tree nn, cn, wfl_op1, wfl_op2, wfl_op3;
11442 /* CONVERT_EXPR always has its type set, even though it needs to be
11444 if (TREE_TYPE (node) && TREE_CODE (node) != CONVERT_EXPR)
11447 /* The switch block implements cases processing container nodes
11448 first. Contained nodes are always written back. Leaves come
11449 next and return a value. */
11450 switch (TREE_CODE (node))
11454 /* 1- Block section.
11455 Set the local values on decl names so we can identify them
11456 faster when they're referenced. At that stage, identifiers
11457 are legal so we don't check for declaration errors. */
11458 for (cn = BLOCK_EXPR_DECLS (node); cn; cn = TREE_CHAIN (cn))
11460 DECL_CONTEXT (cn) = current_function_decl;
11461 IDENTIFIER_LOCAL_VALUE (DECL_NAME (cn)) = cn;
11463 if (BLOCK_EXPR_BODY (node) == NULL_TREE)
11464 CAN_COMPLETE_NORMALLY (node) = 1;
11467 tree stmt = BLOCK_EXPR_BODY (node);
11469 int error_seen = 0;
11470 if (TREE_CODE (stmt) == COMPOUND_EXPR)
11472 /* Re-order from (((A; B); C); ...; Z) to
11473 (A; (B; (C ; (...; Z)))).
11474 This makes it easier to scan the statements left-to-right
11475 without using recursion (which might overflow the stack
11476 if the block has many statements. */
11479 tree left = TREE_OPERAND (stmt, 0);
11480 if (TREE_CODE (left) != COMPOUND_EXPR)
11482 TREE_OPERAND (stmt, 0) = TREE_OPERAND (left, 1);
11483 TREE_OPERAND (left, 1) = stmt;
11486 BLOCK_EXPR_BODY (node) = stmt;
11489 /* Now do the actual complete, without deep recursion for
11491 ptr = &BLOCK_EXPR_BODY (node);
11492 while (TREE_CODE (*ptr) == COMPOUND_EXPR
11493 && TREE_OPERAND (*ptr, 1) != empty_stmt_node)
11495 tree cur = java_complete_tree (TREE_OPERAND (*ptr, 0));
11496 tree *next = &TREE_OPERAND (*ptr, 1);
11497 TREE_OPERAND (*ptr, 0) = cur;
11498 if (cur == empty_stmt_node)
11500 /* Optimization; makes it easier to detect empty bodies.
11501 Most useful for <clinit> with all-constant initializer. */
11505 if (TREE_CODE (cur) == ERROR_MARK)
11507 else if (! CAN_COMPLETE_NORMALLY (cur))
11512 if (TREE_CODE (wfl_op2) == BLOCK)
11513 wfl_op2 = BLOCK_EXPR_BODY (wfl_op2);
11514 else if (TREE_CODE (wfl_op2) == COMPOUND_EXPR)
11515 wfl_op2 = TREE_OPERAND (wfl_op2, 0);
11519 if (TREE_CODE (wfl_op2) != CASE_EXPR
11520 && TREE_CODE (wfl_op2) != DEFAULT_EXPR)
11521 unreachable_stmt_error (*ptr);
11525 *ptr = java_complete_tree (*ptr);
11527 if (TREE_CODE (*ptr) == ERROR_MARK || error_seen > 0)
11528 return error_mark_node;
11529 CAN_COMPLETE_NORMALLY (node) = CAN_COMPLETE_NORMALLY (*ptr);
11531 /* Turn local bindings to null */
11532 for (cn = BLOCK_EXPR_DECLS (node); cn; cn = TREE_CHAIN (cn))
11533 IDENTIFIER_LOCAL_VALUE (DECL_NAME (cn)) = NULL_TREE;
11535 TREE_TYPE (node) = void_type_node;
11538 /* 2- They are expressions but ultimately deal with statements */
11541 wfl_op1 = TREE_OPERAND (node, 0);
11542 COMPLETE_CHECK_OP_0 (node);
11543 /* 14.19 A throw statement cannot complete normally. */
11544 CAN_COMPLETE_NORMALLY (node) = 0;
11545 return patch_throw_statement (node, wfl_op1);
11547 case SYNCHRONIZED_EXPR:
11548 wfl_op1 = TREE_OPERAND (node, 0);
11549 return patch_synchronized_statement (node, wfl_op1);
11552 return patch_try_statement (node);
11554 case TRY_FINALLY_EXPR:
11555 COMPLETE_CHECK_OP_0 (node);
11556 COMPLETE_CHECK_OP_1 (node);
11557 if (TREE_OPERAND (node, 0) == empty_stmt_node)
11558 return TREE_OPERAND (node, 1);
11559 if (TREE_OPERAND (node, 1) == empty_stmt_node)
11560 return TREE_OPERAND (node, 0);
11561 CAN_COMPLETE_NORMALLY (node)
11562 = (CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 0))
11563 && CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1)));
11564 TREE_TYPE (node) = TREE_TYPE (TREE_OPERAND (node, 0));
11567 case CLEANUP_POINT_EXPR:
11568 COMPLETE_CHECK_OP_0 (node);
11569 TREE_TYPE (node) = void_type_node;
11570 CAN_COMPLETE_NORMALLY (node) =
11571 CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 0));
11574 case WITH_CLEANUP_EXPR:
11575 COMPLETE_CHECK_OP_0 (node);
11576 COMPLETE_CHECK_OP_1 (node);
11577 CAN_COMPLETE_NORMALLY (node) =
11578 CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 0));
11579 TREE_TYPE (node) = void_type_node;
11582 case LABELED_BLOCK_EXPR:
11583 PUSH_LABELED_BLOCK (node);
11584 if (LABELED_BLOCK_BODY (node))
11585 COMPLETE_CHECK_OP_1 (node);
11586 TREE_TYPE (node) = void_type_node;
11587 POP_LABELED_BLOCK ();
11589 if (LABELED_BLOCK_BODY (node) == empty_stmt_node)
11591 LABELED_BLOCK_BODY (node) = NULL_TREE;
11592 CAN_COMPLETE_NORMALLY (node) = 1;
11594 else if (CAN_COMPLETE_NORMALLY (LABELED_BLOCK_BODY (node)))
11595 CAN_COMPLETE_NORMALLY (node) = 1;
11598 case EXIT_BLOCK_EXPR:
11599 /* We don't complete operand 1, because it's the return value of
11600 the EXIT_BLOCK_EXPR which doesn't exist it Java */
11601 return patch_bc_statement (node);
11604 cn = java_complete_tree (TREE_OPERAND (node, 0));
11605 if (cn == error_mark_node)
11608 /* First, the case expression must be constant. Values of final
11609 fields are accepted. */
11611 if ((TREE_CODE (cn) == COMPOUND_EXPR || TREE_CODE (cn) == COMPONENT_REF)
11612 && JDECL_P (TREE_OPERAND (cn, 1))
11613 && FIELD_FINAL (TREE_OPERAND (cn, 1))
11614 && DECL_INITIAL (TREE_OPERAND (cn, 1)))
11616 cn = fold_constant_for_init (DECL_INITIAL (TREE_OPERAND (cn, 1)),
11617 TREE_OPERAND (cn, 1));
11620 if (!TREE_CONSTANT (cn) && !flag_emit_xref)
11622 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
11623 parse_error_context (node, "Constant expression required");
11624 return error_mark_node;
11627 nn = ctxp->current_loop;
11629 /* It must be assignable to the type of the switch expression. */
11630 if (!try_builtin_assignconv (NULL_TREE,
11631 TREE_TYPE (TREE_OPERAND (nn, 0)), cn))
11633 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
11634 parse_error_context
11636 "Incompatible type for case. Can't convert `%s' to `int'",
11637 lang_printable_name (TREE_TYPE (cn), 0));
11638 return error_mark_node;
11641 cn = fold (convert (int_type_node, cn));
11642 TREE_CONSTANT_OVERFLOW (cn) = 0;
11643 CAN_COMPLETE_NORMALLY (cn) = 1;
11645 /* Multiple instance of a case label bearing the same
11646 value is checked during code generation. The case
11647 expression is allright so far. */
11648 if (TREE_CODE (cn) == VAR_DECL)
11649 cn = DECL_INITIAL (cn);
11650 TREE_OPERAND (node, 0) = cn;
11651 TREE_TYPE (node) = void_type_node;
11652 CAN_COMPLETE_NORMALLY (node) = 1;
11653 TREE_SIDE_EFFECTS (node) = 1;
11657 nn = ctxp->current_loop;
11658 /* Only one default label is allowed per switch statement */
11659 if (SWITCH_HAS_DEFAULT (nn))
11661 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
11662 parse_error_context (wfl_operator,
11663 "Duplicate case label: `default'");
11664 return error_mark_node;
11667 SWITCH_HAS_DEFAULT (nn) = 1;
11668 TREE_TYPE (node) = void_type_node;
11669 TREE_SIDE_EFFECTS (node) = 1;
11670 CAN_COMPLETE_NORMALLY (node) = 1;
11676 /* Check whether the loop was enclosed in a labeled
11677 statement. If not, create one, insert the loop in it and
11679 nn = patch_loop_statement (node);
11681 /* Anyways, walk the body of the loop */
11682 if (TREE_CODE (node) == LOOP_EXPR)
11683 TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0));
11684 /* Switch statement: walk the switch expression and the cases */
11686 node = patch_switch_statement (node);
11688 if (node == error_mark_node || TREE_OPERAND (node, 0) == error_mark_node)
11689 nn = error_mark_node;
11692 TREE_TYPE (nn) = TREE_TYPE (node) = void_type_node;
11693 /* If we returned something different, that's because we
11694 inserted a label. Pop the label too. */
11697 if (CAN_COMPLETE_NORMALLY (node))
11698 CAN_COMPLETE_NORMALLY (nn) = 1;
11699 POP_LABELED_BLOCK ();
11706 TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0));
11707 return patch_exit_expr (node);
11711 TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0));
11712 if (TREE_OPERAND (node, 0) == error_mark_node)
11713 return error_mark_node;
11714 /* then-else branches */
11715 TREE_OPERAND (node, 1) = java_complete_tree (TREE_OPERAND (node, 1));
11716 if (TREE_OPERAND (node, 1) == error_mark_node)
11717 return error_mark_node;
11718 TREE_OPERAND (node, 2) = java_complete_tree (TREE_OPERAND (node, 2));
11719 if (TREE_OPERAND (node, 2) == error_mark_node)
11720 return error_mark_node;
11721 return patch_if_else_statement (node);
11724 case CONDITIONAL_EXPR:
11726 wfl_op1 = TREE_OPERAND (node, 0);
11727 COMPLETE_CHECK_OP_0 (node);
11728 wfl_op2 = TREE_OPERAND (node, 1);
11729 COMPLETE_CHECK_OP_1 (node);
11730 wfl_op3 = TREE_OPERAND (node, 2);
11731 COMPLETE_CHECK_OP_2 (node);
11732 return patch_conditional_expr (node, wfl_op1, wfl_op2);
11734 /* 3- Expression section */
11735 case COMPOUND_EXPR:
11736 wfl_op2 = TREE_OPERAND (node, 1);
11737 TREE_OPERAND (node, 0) = nn =
11738 java_complete_tree (TREE_OPERAND (node, 0));
11739 if (wfl_op2 == empty_stmt_node)
11740 CAN_COMPLETE_NORMALLY (node) = CAN_COMPLETE_NORMALLY (nn);
11743 if (! CAN_COMPLETE_NORMALLY (nn) && TREE_CODE (nn) != ERROR_MARK)
11745 /* An unreachable condition in a do-while statement
11746 is *not* (technically) an unreachable statement. */
11748 if (TREE_CODE (nn) == EXPR_WITH_FILE_LOCATION)
11749 nn = EXPR_WFL_NODE (nn);
11750 if (TREE_CODE (nn) != EXIT_EXPR)
11752 SET_WFL_OPERATOR (wfl_operator, node, wfl_op2);
11753 parse_error_context (wfl_operator, "Unreachable statement");
11756 TREE_OPERAND (node, 1) = java_complete_tree (TREE_OPERAND (node, 1));
11757 if (TREE_OPERAND (node, 1) == error_mark_node)
11758 return error_mark_node;
11759 CAN_COMPLETE_NORMALLY (node)
11760 = CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1));
11762 TREE_TYPE (node) = TREE_TYPE (TREE_OPERAND (node, 1));
11766 /* CAN_COMPLETE_NORMALLY (node) = 0; */
11767 return patch_return (node);
11769 case EXPR_WITH_FILE_LOCATION:
11770 if (!EXPR_WFL_NODE (node) /* Or a PRIMARY flag ? */
11771 || TREE_CODE (EXPR_WFL_NODE (node)) == IDENTIFIER_NODE)
11774 node = resolve_expression_name (node, NULL);
11775 if (node == error_mark_node)
11777 /* Keep line number information somewhere were it doesn't
11778 disrupt the completion process. */
11779 if (flag_emit_xref && TREE_CODE (node) != CALL_EXPR)
11781 EXPR_WFL_NODE (wfl) = TREE_OPERAND (node, 1);
11782 TREE_OPERAND (node, 1) = wfl;
11784 CAN_COMPLETE_NORMALLY (node) = 1;
11789 int save_lineno = lineno;
11790 lineno = EXPR_WFL_LINENO (node);
11791 body = java_complete_tree (EXPR_WFL_NODE (node));
11792 lineno = save_lineno;
11793 EXPR_WFL_NODE (node) = body;
11794 TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (body);
11795 CAN_COMPLETE_NORMALLY (node) = CAN_COMPLETE_NORMALLY (body);
11796 if (body == empty_stmt_node || TREE_CONSTANT (body))
11798 /* Makes it easier to constant fold, detect empty bodies. */
11801 if (body == error_mark_node)
11803 /* Its important for the evaluation of assignment that
11804 this mark on the TREE_TYPE is propagated. */
11805 TREE_TYPE (node) = error_mark_node;
11806 return error_mark_node;
11809 TREE_TYPE (node) = TREE_TYPE (EXPR_WFL_NODE (node));
11814 case NEW_ARRAY_EXPR:
11815 /* Patch all the dimensions */
11817 for (cn = TREE_OPERAND (node, 1); cn; cn = TREE_CHAIN (cn))
11819 int location = EXPR_WFL_LINECOL (TREE_VALUE (cn));
11820 tree dim = convert (int_type_node,
11821 java_complete_tree (TREE_VALUE (cn)));
11822 if (dim == error_mark_node)
11829 TREE_VALUE (cn) = dim;
11830 /* Setup the location of the current dimension, for
11831 later error report. */
11832 TREE_PURPOSE (cn) =
11833 build_expr_wfl (NULL_TREE, input_filename, 0, 0);
11834 EXPR_WFL_LINECOL (TREE_PURPOSE (cn)) = location;
11837 /* They complete the array creation expression, if no errors
11839 CAN_COMPLETE_NORMALLY (node) = 1;
11840 return (flag ? error_mark_node
11841 : force_evaluation_order (patch_newarray (node)));
11843 case NEW_ANONYMOUS_ARRAY_EXPR:
11844 /* Create the array type if necessary. */
11845 if (ANONYMOUS_ARRAY_DIMS_SIG (node))
11847 tree type = ANONYMOUS_ARRAY_BASE_TYPE (node);
11848 if (!(type = resolve_type_during_patch (type)))
11849 return error_mark_node;
11850 type = build_array_from_name (type, NULL_TREE,
11851 ANONYMOUS_ARRAY_DIMS_SIG (node), NULL);
11852 ANONYMOUS_ARRAY_BASE_TYPE (node) = build_pointer_type (type);
11854 node = patch_new_array_init (ANONYMOUS_ARRAY_BASE_TYPE (node),
11855 ANONYMOUS_ARRAY_INITIALIZER (node));
11856 if (node == error_mark_node)
11857 return error_mark_node;
11858 CAN_COMPLETE_NORMALLY (node) = 1;
11861 case NEW_CLASS_EXPR:
11863 /* Complete function's argument(s) first */
11864 if (complete_function_arguments (node))
11865 return error_mark_node;
11868 tree decl, wfl = TREE_OPERAND (node, 0);
11869 int in_this = CALL_THIS_CONSTRUCTOR_P (node);
11870 int from_super = (EXPR_WFL_NODE (TREE_OPERAND (node, 0)) ==
11871 super_identifier_node);
11873 node = patch_method_invocation (node, NULL_TREE, NULL_TREE,
11874 from_super, 0, &decl);
11875 if (node == error_mark_node)
11876 return error_mark_node;
11878 check_thrown_exceptions (EXPR_WFL_LINECOL (node), decl);
11879 /* If we call this(...), register signature and positions */
11881 DECL_CONSTRUCTOR_CALLS (current_function_decl) =
11882 tree_cons (wfl, decl,
11883 DECL_CONSTRUCTOR_CALLS (current_function_decl));
11884 CAN_COMPLETE_NORMALLY (node) = 1;
11885 return force_evaluation_order (node);
11889 /* Save potential wfls */
11890 wfl_op1 = TREE_OPERAND (node, 0);
11891 TREE_OPERAND (node, 0) = nn = java_complete_lhs (wfl_op1);
11893 if (MODIFY_EXPR_FROM_INITIALIZATION_P (node)
11894 && TREE_CODE (nn) == VAR_DECL && TREE_STATIC (nn)
11895 && DECL_INITIAL (nn) != NULL_TREE)
11899 value = fold_constant_for_init (nn, nn);
11901 if (value != NULL_TREE)
11903 tree type = TREE_TYPE (value);
11904 if (JPRIMITIVE_TYPE_P (type) ||
11905 (type == string_ptr_type_node && ! flag_emit_class_files))
11906 return empty_stmt_node;
11908 if (! flag_emit_class_files)
11909 DECL_INITIAL (nn) = NULL_TREE;
11910 if (CLASS_FINAL_VARIABLE_P (nn))
11911 DECL_FIELD_FINAL_IUD (nn) = 0;
11913 wfl_op2 = TREE_OPERAND (node, 1);
11915 if (TREE_OPERAND (node, 0) == error_mark_node)
11916 return error_mark_node;
11918 flag = COMPOUND_ASSIGN_P (wfl_op2);
11921 /* This might break when accessing outer field from inner
11922 class. TESTME, FIXME */
11923 tree lvalue = java_stabilize_reference (TREE_OPERAND (node, 0));
11925 /* Hand stabilize the lhs on both places */
11926 TREE_OPERAND (node, 0) = lvalue;
11927 TREE_OPERAND (TREE_OPERAND (node, 1), 0) =
11928 (flag_emit_class_files ? lvalue : save_expr (lvalue));
11930 /* 15.25.2.a: Left hand is not an array access. FIXME */
11931 /* Now complete the RHS. We write it back later on. */
11932 nn = java_complete_tree (TREE_OPERAND (node, 1));
11934 if ((cn = patch_string (nn)))
11937 /* The last part of the rewrite for E1 op= E2 is to have
11938 E1 = (T)(E1 op E2), with T being the type of E1. */
11939 nn = java_complete_tree (build_cast (EXPR_WFL_LINECOL (wfl_op2),
11940 TREE_TYPE (lvalue), nn));
11942 /* If the assignment is compound and has reference type,
11943 then ensure the LHS has type String and nothing else. */
11944 if (JREFERENCE_TYPE_P (TREE_TYPE (lvalue))
11945 && ! JSTRING_TYPE_P (TREE_TYPE (lvalue)))
11946 parse_error_context (wfl_op2,
11947 "Incompatible type for `+='. Can't convert `%s' to `java.lang.String'",
11948 lang_printable_name (TREE_TYPE (lvalue), 0));
11950 /* 15.25.2.b: Left hand is an array access. FIXME */
11953 /* If we're about to patch a NEW_ARRAY_INIT, we call a special
11954 function to complete this RHS. Note that a NEW_ARRAY_INIT
11955 might have been already fully expanded if created as a result
11956 of processing an anonymous array initializer. We avoid doing
11957 the operation twice by testing whether the node already bears
11959 else if (TREE_CODE (wfl_op2) == NEW_ARRAY_INIT && !TREE_TYPE (wfl_op2))
11960 nn = patch_new_array_init (TREE_TYPE (TREE_OPERAND (node, 0)),
11961 TREE_OPERAND (node, 1));
11962 /* Otherwise we simply complete the RHS */
11964 nn = java_complete_tree (TREE_OPERAND (node, 1));
11966 if (nn == error_mark_node)
11967 return error_mark_node;
11969 /* Write back the RHS as we evaluated it. */
11970 TREE_OPERAND (node, 1) = nn;
11972 /* In case we're handling = with a String as a RHS, we need to
11973 produce a String out of the RHS (it might still be a
11974 STRING_CST or a StringBuffer at this stage */
11975 if ((nn = patch_string (TREE_OPERAND (node, 1))))
11976 TREE_OPERAND (node, 1) = nn;
11978 if ((nn = outer_field_access_fix (wfl_op1, TREE_OPERAND (node, 0),
11979 TREE_OPERAND (node, 1))))
11981 /* We return error_mark_node if outer_field_access_fix
11982 detects we write into a final. */
11983 if (nn == error_mark_node)
11984 return error_mark_node;
11989 node = patch_assignment (node, wfl_op1, wfl_op2);
11990 /* Reorganize the tree if necessary. */
11991 if (flag && (!JREFERENCE_TYPE_P (TREE_TYPE (node))
11992 || JSTRING_P (TREE_TYPE (node))))
11993 node = java_refold (node);
11996 CAN_COMPLETE_NORMALLY (node) = 1;
12008 case TRUNC_MOD_EXPR:
12009 case TRUNC_DIV_EXPR:
12011 case TRUTH_ANDIF_EXPR:
12012 case TRUTH_ORIF_EXPR:
12019 /* Operands 0 and 1 are WFL in certain cases only. patch_binop
12020 knows how to handle those cases. */
12021 wfl_op1 = TREE_OPERAND (node, 0);
12022 wfl_op2 = TREE_OPERAND (node, 1);
12024 CAN_COMPLETE_NORMALLY (node) = 1;
12025 /* Don't complete string nodes if dealing with the PLUS operand. */
12026 if (TREE_CODE (node) != PLUS_EXPR || !JSTRING_P (wfl_op1))
12028 nn = java_complete_tree (wfl_op1);
12029 if (nn == error_mark_node)
12030 return error_mark_node;
12032 TREE_OPERAND (node, 0) = nn;
12034 if (TREE_CODE (node) != PLUS_EXPR || !JSTRING_P (wfl_op2))
12036 nn = java_complete_tree (wfl_op2);
12037 if (nn == error_mark_node)
12038 return error_mark_node;
12040 TREE_OPERAND (node, 1) = nn;
12042 return force_evaluation_order (patch_binop (node, wfl_op1, wfl_op2));
12044 case INSTANCEOF_EXPR:
12045 wfl_op1 = TREE_OPERAND (node, 0);
12046 COMPLETE_CHECK_OP_0 (node);
12047 if (flag_emit_xref)
12049 TREE_TYPE (node) = boolean_type_node;
12052 return patch_binop (node, wfl_op1, TREE_OPERAND (node, 1));
12054 case UNARY_PLUS_EXPR:
12056 case TRUTH_NOT_EXPR:
12058 case PREDECREMENT_EXPR:
12059 case PREINCREMENT_EXPR:
12060 case POSTDECREMENT_EXPR:
12061 case POSTINCREMENT_EXPR:
12063 /* There are cases were wfl_op1 is a WFL. patch_unaryop knows
12064 how to handle those cases. */
12065 wfl_op1 = TREE_OPERAND (node, 0);
12066 CAN_COMPLETE_NORMALLY (node) = 1;
12067 TREE_OPERAND (node, 0) = java_complete_tree (wfl_op1);
12068 if (TREE_OPERAND (node, 0) == error_mark_node)
12069 return error_mark_node;
12070 node = patch_unaryop (node, wfl_op1);
12071 CAN_COMPLETE_NORMALLY (node) = 1;
12075 /* There are cases were wfl_op1 is a WFL. patch_array_ref knows
12076 how to handle those cases. */
12077 wfl_op1 = TREE_OPERAND (node, 0);
12078 TREE_OPERAND (node, 0) = java_complete_tree (wfl_op1);
12079 if (TREE_OPERAND (node, 0) == error_mark_node)
12080 return error_mark_node;
12081 if (!flag_emit_class_files && !flag_emit_xref)
12082 TREE_OPERAND (node, 0) = save_expr (TREE_OPERAND (node, 0));
12083 /* The same applies to wfl_op2 */
12084 wfl_op2 = TREE_OPERAND (node, 1);
12085 TREE_OPERAND (node, 1) = java_complete_tree (wfl_op2);
12086 if (TREE_OPERAND (node, 1) == error_mark_node)
12087 return error_mark_node;
12088 if (!flag_emit_class_files && !flag_emit_xref)
12089 TREE_OPERAND (node, 1) = save_expr (TREE_OPERAND (node, 1));
12090 return patch_array_ref (node);
12095 case COMPONENT_REF:
12096 /* The first step in the re-write of qualified name handling. FIXME.
12097 So far, this is only to support PRIMTYPE.class -> PRIMCLASS.TYPE. */
12098 TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0));
12099 if (TREE_CODE (TREE_OPERAND (node, 0)) == RECORD_TYPE)
12101 tree name = TREE_OPERAND (node, 1);
12102 tree field = lookup_field_wrapper (TREE_OPERAND (node, 0), name);
12103 if (field == NULL_TREE)
12105 error ("missing static field `%s'", IDENTIFIER_POINTER (name));
12106 return error_mark_node;
12108 if (! FIELD_STATIC (field))
12110 error ("not a static field `%s'", IDENTIFIER_POINTER (name));
12111 return error_mark_node;
12120 /* Can't use THIS in a static environment */
12123 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
12124 parse_error_context (wfl_operator,
12125 "Keyword `this' used outside allowed context");
12126 TREE_TYPE (node) = error_mark_node;
12127 return error_mark_node;
12129 if (ctxp->explicit_constructor_p)
12131 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
12132 parse_error_context
12133 (wfl_operator, "Can't reference `this' or `super' before the superclass constructor has been called");
12134 TREE_TYPE (node) = error_mark_node;
12135 return error_mark_node;
12137 return current_this;
12139 case CLASS_LITERAL:
12140 CAN_COMPLETE_NORMALLY (node) = 1;
12141 node = patch_incomplete_class_ref (node);
12142 if (node == error_mark_node)
12143 return error_mark_node;
12147 CAN_COMPLETE_NORMALLY (node) = 1;
12148 /* Ok: may be we have a STRING_CST or a crafted `StringBuffer'
12149 and it's time to turn it into the appropriate String object */
12150 if ((nn = patch_string (node)))
12153 internal_error ("No case for %s", tree_code_name [TREE_CODE (node)]);
12158 /* Complete function call's argument. Return a non zero value is an
12159 error was found. */
12162 complete_function_arguments (node)
12168 ctxp->explicit_constructor_p += (CALL_EXPLICIT_CONSTRUCTOR_P (node) ? 1 : 0);
12169 for (cn = TREE_OPERAND (node, 1); cn; cn = TREE_CHAIN (cn))
12171 tree wfl = TREE_VALUE (cn), parm, temp;
12172 parm = java_complete_tree (wfl);
12174 if (parm == error_mark_node)
12179 /* If have a string literal that we haven't transformed yet or a
12180 crafted string buffer, as a result of use of the the String
12181 `+' operator. Build `parm.toString()' and expand it. */
12182 if ((temp = patch_string (parm)))
12184 /* Inline PRIMTYPE.TYPE read access */
12185 parm = maybe_build_primttype_type_ref (parm, wfl);
12187 TREE_VALUE (cn) = parm;
12189 ctxp->explicit_constructor_p -= (CALL_EXPLICIT_CONSTRUCTOR_P (node) ? 1 : 0);
12193 /* Sometimes (for loops and variable initialized during their
12194 declaration), we want to wrap a statement around a WFL and turn it
12198 build_debugable_stmt (location, stmt)
12202 if (TREE_CODE (stmt) != EXPR_WITH_FILE_LOCATION)
12204 stmt = build_expr_wfl (stmt, input_filename, 0, 0);
12205 EXPR_WFL_LINECOL (stmt) = location;
12207 JAVA_MAYBE_GENERATE_DEBUG_INFO (stmt);
12212 build_expr_block (body, decls)
12215 tree node = make_node (BLOCK);
12216 BLOCK_EXPR_DECLS (node) = decls;
12217 BLOCK_EXPR_BODY (node) = body;
12219 TREE_TYPE (node) = TREE_TYPE (body);
12220 TREE_SIDE_EFFECTS (node) = 1;
12224 /* Create a new function block and link it approriately to current
12225 function block chain */
12230 tree b = build_expr_block (NULL_TREE, NULL_TREE);
12232 /* Link block B supercontext to the previous block. The current
12233 function DECL is used as supercontext when enter_a_block is called
12234 for the first time for a given function. The current function body
12235 (DECL_FUNCTION_BODY) is set to be block B. */
12237 tree fndecl = current_function_decl;
12240 BLOCK_SUPERCONTEXT (b) = current_static_block;
12241 current_static_block = b;
12244 else if (!DECL_FUNCTION_BODY (fndecl))
12246 BLOCK_SUPERCONTEXT (b) = fndecl;
12247 DECL_FUNCTION_BODY (fndecl) = b;
12251 BLOCK_SUPERCONTEXT (b) = DECL_FUNCTION_BODY (fndecl);
12252 DECL_FUNCTION_BODY (fndecl) = b;
12257 /* Exit a block by changing the current function body
12258 (DECL_FUNCTION_BODY) to the current block super context, only if
12259 the block being exited isn't the method's top level one. */
12265 if (current_function_decl)
12267 b = DECL_FUNCTION_BODY (current_function_decl);
12268 if (BLOCK_SUPERCONTEXT (b) != current_function_decl)
12269 DECL_FUNCTION_BODY (current_function_decl) = BLOCK_SUPERCONTEXT (b);
12273 b = current_static_block;
12275 if (BLOCK_SUPERCONTEXT (b))
12276 current_static_block = BLOCK_SUPERCONTEXT (b);
12281 /* Lookup for NAME in the nested function's blocks, all the way up to
12282 the current toplevel one. It complies with Java's local variable
12286 lookup_name_in_blocks (name)
12289 tree b = GET_CURRENT_BLOCK (current_function_decl);
12291 while (b != current_function_decl)
12295 /* Paranoid sanity check. To be removed */
12296 if (TREE_CODE (b) != BLOCK)
12299 for (current = BLOCK_EXPR_DECLS (b); current;
12300 current = TREE_CHAIN (current))
12301 if (DECL_NAME (current) == name)
12303 b = BLOCK_SUPERCONTEXT (b);
12309 maybe_absorb_scoping_blocks ()
12311 while (BLOCK_IS_IMPLICIT (GET_CURRENT_BLOCK (current_function_decl)))
12313 tree b = exit_block ();
12314 java_method_add_stmt (current_function_decl, b);
12315 SOURCE_FRONTEND_DEBUG (("Absorbing scoping block at line %d", lineno));
12320 /* This section of the source is reserved to build_* functions that
12321 are building incomplete tree nodes and the patch_* functions that
12322 are completing them. */
12324 /* Wrap a non WFL node around a WFL. */
12327 build_wfl_wrap (node, location)
12331 tree wfl, node_to_insert = node;
12333 /* We want to process THIS . xxx symbolicaly, to keep it consistent
12334 with the way we're processing SUPER. A THIS from a primary as a
12335 different form than a SUPER. Turn THIS into something symbolic */
12336 if (TREE_CODE (node) == THIS_EXPR)
12337 node_to_insert = wfl = build_wfl_node (this_identifier_node);
12339 wfl = build_expr_wfl (NULL_TREE, ctxp->filename, 0, 0);
12341 EXPR_WFL_LINECOL (wfl) = location;
12342 EXPR_WFL_QUALIFICATION (wfl) = build_tree_list (node_to_insert, NULL_TREE);
12346 /* Build a super() constructor invocation. Returns empty_stmt_node if
12347 we're currently dealing with the class java.lang.Object. */
12350 build_super_invocation (mdecl)
12353 if (DECL_CONTEXT (mdecl) == object_type_node)
12354 return empty_stmt_node;
12357 tree super_wfl = build_wfl_node (super_identifier_node);
12358 tree a = NULL_TREE, t;
12359 /* If we're dealing with an anonymous class, pass the arguments
12360 of the crafted constructor along. */
12361 if (ANONYMOUS_CLASS_P (DECL_CONTEXT (mdecl)))
12363 SKIP_THIS_AND_ARTIFICIAL_PARMS (t, mdecl);
12364 for (; t != end_params_node; t = TREE_CHAIN (t))
12365 a = tree_cons (NULL_TREE, build_wfl_node (TREE_PURPOSE (t)), a);
12367 return build_method_invocation (super_wfl, a);
12371 /* Build a SUPER/THIS qualified method invocation. */
12374 build_this_super_qualified_invocation (use_this, name, args, lloc, rloc)
12381 build_wfl_node (use_this ? this_identifier_node : super_identifier_node);
12382 EXPR_WFL_LINECOL (wfl) = lloc;
12383 invok = build_method_invocation (name, args);
12384 return make_qualified_primary (wfl, invok, rloc);
12387 /* Build an incomplete CALL_EXPR node. */
12390 build_method_invocation (name, args)
12394 tree call = build (CALL_EXPR, NULL_TREE, name, args, NULL_TREE);
12395 TREE_SIDE_EFFECTS (call) = 1;
12396 EXPR_WFL_LINECOL (call) = EXPR_WFL_LINECOL (name);
12400 /* Build an incomplete new xxx(...) node. */
12403 build_new_invocation (name, args)
12406 tree call = build (NEW_CLASS_EXPR, NULL_TREE, name, args, NULL_TREE);
12407 TREE_SIDE_EFFECTS (call) = 1;
12408 EXPR_WFL_LINECOL (call) = EXPR_WFL_LINECOL (name);
12412 /* Build an incomplete assignment expression. */
12415 build_assignment (op, op_location, lhs, rhs)
12416 int op, op_location;
12420 /* Build the corresponding binop if we deal with a Compound
12421 Assignment operator. Mark the binop sub-tree as part of a
12422 Compound Assignment expression */
12423 if (op != ASSIGN_TK)
12425 rhs = build_binop (BINOP_LOOKUP (op), op_location, lhs, rhs);
12426 COMPOUND_ASSIGN_P (rhs) = 1;
12428 assignment = build (MODIFY_EXPR, NULL_TREE, lhs, rhs);
12429 TREE_SIDE_EFFECTS (assignment) = 1;
12430 EXPR_WFL_LINECOL (assignment) = op_location;
12434 /* Print an INTEGER_CST node in a static buffer, and return the buffer. */
12437 print_int_node (node)
12440 static char buffer [80];
12441 if (TREE_CONSTANT_OVERFLOW (node))
12442 sprintf (buffer, "<overflow>");
12444 if (TREE_INT_CST_HIGH (node) == 0)
12445 sprintf (buffer, HOST_WIDE_INT_PRINT_UNSIGNED,
12446 TREE_INT_CST_LOW (node));
12447 else if (TREE_INT_CST_HIGH (node) == -1
12448 && TREE_INT_CST_LOW (node) != 0)
12451 sprintf (&buffer [1], HOST_WIDE_INT_PRINT_UNSIGNED,
12452 -TREE_INT_CST_LOW (node));
12455 sprintf (buffer, HOST_WIDE_INT_PRINT_DOUBLE_HEX,
12456 TREE_INT_CST_HIGH (node), TREE_INT_CST_LOW (node));
12463 /* This section of the code handle assignment check with FINAL
12467 reset_static_final_variable_assignment_flag (class)
12471 for (field = TYPE_FIELDS (class); field; field = TREE_CHAIN (field))
12472 if (CLASS_FINAL_VARIABLE_P (field))
12473 DECL_FIELD_FINAL_LIIC (field) = 0;
12476 /* Figure whether all final static variable have been initialized. */
12479 check_static_final_variable_assignment_flag (class)
12484 for (field = TYPE_FIELDS (class); field; field = TREE_CHAIN (field))
12485 if (CLASS_FINAL_VARIABLE_P (field)
12486 && !DECL_FIELD_FINAL_IUD (field) && !DECL_FIELD_FINAL_LIIC (field))
12487 parse_error_context
12488 (DECL_FIELD_FINAL_WFL (field),
12489 "Blank static final variable `%s' may not have been initialized",
12490 IDENTIFIER_POINTER (DECL_NAME (field)));
12493 /* This function marks all final variable locally unassigned. */
12496 reset_final_variable_local_assignment_flag (class)
12500 for (field = TYPE_FIELDS (class); field; field = TREE_CHAIN (field))
12501 if (FINAL_VARIABLE_P (field))
12502 DECL_FIELD_FINAL_LIIC (field) = 0;
12505 /* Figure whether all final variables have beem initialized in MDECL
12506 and mark MDECL accordingly. */
12509 check_final_variable_local_assignment_flag (class, mdecl)
12514 int initialized = 0;
12515 int non_initialized = 0;
12517 if (DECL_FUNCTION_SYNTHETIC_CTOR (mdecl))
12520 /* First find out whether all final variables or no final variable
12521 are initialized in this ctor. We don't take into account final
12522 variable that have been initialized upon declaration. */
12523 for (field = TYPE_FIELDS (class); field; field = TREE_CHAIN (field))
12524 if (FINAL_VARIABLE_P (field) && !DECL_FIELD_FINAL_IUD (field))
12526 if (DECL_FIELD_FINAL_LIIC (field))
12532 /* There were no non initialized variable and no initialized variable.
12533 This ctor is fine. */
12534 if (!non_initialized && !initialized)
12535 DECL_FUNCTION_ALL_FINAL_INITIALIZED (mdecl) = 1;
12536 /* If no variables have been initialized, that fine. We'll check
12537 later whether this ctor calls a constructor which initializes
12538 them. We mark the ctor as not initializing all its finals. */
12539 else if (initialized == 0)
12540 DECL_FUNCTION_ALL_FINAL_INITIALIZED (mdecl) = 0;
12541 /* If we have a mixed bag, then we have a problem. We need to report
12542 all the variables we're not initializing. */
12543 else if (initialized && non_initialized)
12545 DECL_FUNCTION_ALL_FINAL_INITIALIZED (mdecl) = 0;
12546 for (field = TYPE_FIELDS (class); field; field = TREE_CHAIN (field))
12547 if (FIELD_FINAL (field)
12548 && !DECL_FIELD_FINAL_IUD (field) && !DECL_FIELD_FINAL_LIIC (field))
12550 parse_error_context
12551 (lookup_cl (mdecl),
12552 "Blank final variable `%s' may not have been initialized in this constructor",
12553 IDENTIFIER_POINTER (DECL_NAME (field)));
12554 DECL_FIELD_FINAL_IERR (field) = 1;
12557 /* Otherwise we know this ctor is initializing all its final
12558 variable. We mark it so. */
12560 DECL_FUNCTION_ALL_FINAL_INITIALIZED (mdecl) = 1;
12563 /* This function recurses in a simple what through STMT and stops when
12564 it finds a constructor call. It then verifies that the called
12565 constructor initialized its final properly. Return 1 upon success,
12566 0 or -1 otherwise. */
12569 check_final_variable_indirect_assignment (stmt)
12573 switch (TREE_CODE (stmt))
12575 case EXPR_WITH_FILE_LOCATION:
12576 return check_final_variable_indirect_assignment (EXPR_WFL_NODE (stmt));
12577 case COMPOUND_EXPR:
12578 res = check_final_variable_indirect_assignment (TREE_OPERAND (stmt, 0));
12581 return check_final_variable_indirect_assignment (TREE_OPERAND (stmt, 1));
12583 return check_final_variable_indirect_assignment (TREE_OPERAND (stmt, 0));
12586 tree decl = TREE_OPERAND (stmt, 0);
12589 if (TREE_CODE (decl) != FUNCTION_DECL)
12590 decl = TREE_OPERAND (TREE_OPERAND (decl, 0), 0);
12591 if (TREE_CODE (decl) != FUNCTION_DECL)
12593 if (DECL_FUNCTION_ALL_FINAL_INITIALIZED (decl))
12595 if (DECL_FINIT_P (decl) || DECL_CONTEXT (decl) != current_class)
12597 fbody = BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (decl));
12598 if (fbody == error_mark_node)
12600 fbody = BLOCK_EXPR_BODY (fbody);
12601 return check_final_variable_indirect_assignment (fbody);
12609 /* This is the last chance to catch a final variable initialization
12610 problem. This routine will report an error if a final variable was
12611 never (globally) initialized and never reported as not having been
12612 initialized properly. */
12615 check_final_variable_global_assignment_flag (class)
12621 /* We go through all natural ctors and see whether they're
12622 initializing all their final variables or not. */
12623 current_function_decl = NULL_TREE; /* For the error report. */
12624 for (mdecl = TYPE_METHODS (class); mdecl; mdecl = TREE_CHAIN (mdecl))
12625 if (DECL_CONSTRUCTOR_P (mdecl) && ! DECL_FUNCTION_SYNTHETIC_CTOR (mdecl))
12627 if (!DECL_FUNCTION_ALL_FINAL_INITIALIZED (mdecl))
12629 /* It doesn't. Maybe it calls a constructor that initializes
12631 tree fbody = BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (mdecl));
12632 if (fbody == error_mark_node)
12634 fbody = BLOCK_EXPR_BODY (fbody);
12635 if (check_final_variable_indirect_assignment (fbody) == 1)
12637 DECL_FUNCTION_ALL_FINAL_INITIALIZED (mdecl) = 1;
12641 parse_error_context
12642 (lookup_cl (mdecl),
12643 "Final variable initialization error in this constructor");
12649 /* Finally we catch final variables that never were initialized */
12650 for (field = TYPE_FIELDS (class); field; field = TREE_CHAIN (field))
12651 if (FINAL_VARIABLE_P (field)
12652 /* If the field wasn't initialized upon declaration */
12653 && !DECL_FIELD_FINAL_IUD (field)
12654 /* There wasn't natural ctor in which the field could have been
12657 /* If we never reported a problem with this field */
12658 && !DECL_FIELD_FINAL_IERR (field))
12660 current_function_decl = NULL;
12661 parse_error_context
12662 (DECL_FIELD_FINAL_WFL (field),
12663 "Final variable `%s' hasn't been initialized upon its declaration",
12664 IDENTIFIER_POINTER (DECL_NAME (field)));
12669 /* Return 1 if an assignment to a FINAL is attempted in a non suitable
12673 check_final_assignment (lvalue, wfl)
12676 if (TREE_CODE (lvalue) != COMPONENT_REF && !JDECL_P (lvalue))
12679 if (TREE_CODE (lvalue) == COMPONENT_REF
12680 && JDECL_P (TREE_OPERAND (lvalue, 1)))
12681 lvalue = TREE_OPERAND (lvalue, 1);
12683 if (!FIELD_FINAL (lvalue))
12686 /* Now the logic. We can modify a final VARIABLE:
12687 1) in finit$, (its declaration was followed by an initialization,)
12688 2) consistently in each natural ctor, if it wasn't initialized in
12689 finit$ or once in <clinit>. In any other cases, an error should be
12691 if (DECL_FINIT_P (current_function_decl))
12693 DECL_FIELD_FINAL_IUD (lvalue) = 1;
12697 if (!DECL_FUNCTION_SYNTHETIC_CTOR (current_function_decl)
12698 /* Only if it wasn't given a value upon initialization */
12699 && DECL_LANG_SPECIFIC (lvalue) && !DECL_FIELD_FINAL_IUD (lvalue)
12700 /* If it was never assigned a value in this constructor */
12701 && !DECL_FIELD_FINAL_LIIC (lvalue))
12703 /* Turn the locally assigned flag on, it will be checked later
12704 on to point out at discrepancies. */
12705 DECL_FIELD_FINAL_LIIC (lvalue) = 1;
12706 if (DECL_CLINIT_P (current_function_decl))
12707 DECL_FIELD_FINAL_IUD (lvalue) = 1;
12711 /* Other problems should be reported right away. */
12712 parse_error_context
12713 (wfl, "Can't %sassign a value to the final variable `%s'",
12714 (FIELD_STATIC (lvalue) ? "re" : ""),
12715 IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl)));
12717 /* Note that static field can be initialized once and only once. */
12718 if (FIELD_STATIC (lvalue))
12719 DECL_FIELD_FINAL_IERR (lvalue) = 1;
12724 /* Inline references to java.lang.PRIMTYPE.TYPE when accessed in
12725 read. This is needed to avoid circularities in the implementation
12726 of these fields in libjava. */
12729 maybe_build_primttype_type_ref (rhs, wfl)
12732 tree to_return = NULL_TREE;
12733 tree rhs_type = TREE_TYPE (rhs);
12734 if (TREE_CODE (rhs) == COMPOUND_EXPR)
12736 tree n = TREE_OPERAND (rhs, 1);
12737 if (TREE_CODE (n) == VAR_DECL
12738 && DECL_NAME (n) == TYPE_identifier_node
12739 && rhs_type == class_ptr_type
12740 && TREE_CODE (wfl) == EXPR_WITH_FILE_LOCATION
12741 && TREE_CODE (EXPR_WFL_NODE (wfl)) == IDENTIFIER_NODE)
12743 const char *self_name = IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl));
12744 if (!strncmp (self_name, "java.lang.", 10))
12745 to_return = build_primtype_type_ref (self_name);
12748 return (to_return ? to_return : rhs );
12751 /* 15.25 Assignment operators. */
12754 patch_assignment (node, wfl_op1, wfl_op2)
12759 tree rhs = TREE_OPERAND (node, 1);
12760 tree lvalue = TREE_OPERAND (node, 0), llvalue;
12761 tree lhs_type = NULL_TREE, rhs_type, new_rhs = NULL_TREE;
12762 int error_found = 0;
12763 int lvalue_from_array = 0;
12765 /* Can't assign to a (blank) final. */
12766 if (check_final_assignment (lvalue, wfl_op1))
12769 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
12771 /* Lhs can be a named variable */
12772 if (JDECL_P (lvalue))
12774 lhs_type = TREE_TYPE (lvalue);
12776 /* Or Lhs can be a array acccess. Should that be lvalue ? FIXME +
12777 comment on reason why */
12778 else if (TREE_CODE (wfl_op1) == ARRAY_REF)
12780 lhs_type = TREE_TYPE (lvalue);
12781 lvalue_from_array = 1;
12783 /* Or a field access */
12784 else if (TREE_CODE (lvalue) == COMPONENT_REF)
12785 lhs_type = TREE_TYPE (lvalue);
12786 /* Or a function return slot */
12787 else if (TREE_CODE (lvalue) == RESULT_DECL)
12788 lhs_type = TREE_TYPE (lvalue);
12789 /* Otherwise, we might want to try to write into an optimized static
12790 final, this is an of a different nature, reported further on. */
12791 else if (TREE_CODE (wfl_op1) == EXPR_WITH_FILE_LOCATION
12792 && resolve_expression_name (wfl_op1, &llvalue))
12794 if (!error_found && check_final_assignment (llvalue, wfl_op1))
12796 /* What we should do instead is resetting the all the flags
12797 previously set, exchange lvalue for llvalue and continue. */
12799 return error_mark_node;
12802 lhs_type = TREE_TYPE (lvalue);
12806 parse_error_context (wfl_op1, "Invalid left hand side of assignment");
12810 rhs_type = TREE_TYPE (rhs);
12811 /* 5.1 Try the assignment conversion for builtin type. */
12812 new_rhs = try_builtin_assignconv (wfl_op1, lhs_type, rhs);
12814 /* 5.2 If it failed, try a reference conversion */
12815 if (!new_rhs && (new_rhs = try_reference_assignconv (lhs_type, rhs)))
12816 lhs_type = promote_type (rhs_type);
12818 /* 15.25.2 If we have a compound assignment, convert RHS into the
12820 else if (COMPOUND_ASSIGN_P (TREE_OPERAND (node, 1)))
12821 new_rhs = convert (lhs_type, rhs);
12823 /* Explicit cast required. This is an error */
12826 char *t1 = xstrdup (lang_printable_name (TREE_TYPE (rhs), 0));
12827 char *t2 = xstrdup (lang_printable_name (lhs_type, 0));
12829 char operation [32]; /* Max size known */
12831 /* If the assignment is part of a declaration, we use the WFL of
12832 the declared variable to point out the error and call it a
12833 declaration problem. If the assignment is a genuine =
12834 operator, we call is a operator `=' problem, otherwise we
12835 call it an assignment problem. In both of these last cases,
12836 we use the WFL of the operator to indicate the error. */
12838 if (MODIFY_EXPR_FROM_INITIALIZATION_P (node))
12841 strcpy (operation, "declaration");
12845 wfl = wfl_operator;
12846 if (COMPOUND_ASSIGN_P (TREE_OPERAND (node, 1)))
12847 strcpy (operation, "assignment");
12848 else if (TREE_CODE (TREE_OPERAND (node, 0)) == RESULT_DECL)
12849 strcpy (operation, "`return'");
12851 strcpy (operation, "`='");
12854 if (!valid_cast_to_p (rhs_type, lhs_type))
12855 parse_error_context
12856 (wfl, "Incompatible type for %s. Can't convert `%s' to `%s'",
12857 operation, t1, t2);
12859 parse_error_context (wfl, "Incompatible type for %s. Explicit cast needed to convert `%s' to `%s'",
12860 operation, t1, t2);
12861 free (t1); free (t2);
12865 /* Inline read access to java.lang.PRIMTYPE.TYPE */
12867 new_rhs = maybe_build_primttype_type_ref (new_rhs, wfl_op2);
12870 return error_mark_node;
12872 /* 10.10: Array Store Exception runtime check */
12873 if (!flag_emit_class_files
12875 && lvalue_from_array
12876 && JREFERENCE_TYPE_P (TYPE_ARRAY_ELEMENT (lhs_type)))
12879 tree base = lvalue;
12881 /* We need to retrieve the right argument for
12882 _Jv_CheckArrayStore. This is somewhat complicated by bounds
12883 and null pointer checks, both of which wrap the operand in
12884 one layer of COMPOUND_EXPR. */
12885 if (TREE_CODE (lvalue) == COMPOUND_EXPR)
12886 base = TREE_OPERAND (lvalue, 0);
12889 tree op = TREE_OPERAND (base, 0);
12891 /* We can have a SAVE_EXPR here when doing String +=. */
12892 if (TREE_CODE (op) == SAVE_EXPR)
12893 op = TREE_OPERAND (op, 0);
12894 if (flag_bounds_check)
12895 base = TREE_OPERAND (TREE_OPERAND (op, 1), 0);
12897 base = TREE_OPERAND (op, 0);
12900 /* Build the invocation of _Jv_CheckArrayStore */
12901 new_rhs = save_expr (new_rhs);
12902 check = build (CALL_EXPR, void_type_node,
12903 build_address_of (soft_checkarraystore_node),
12904 tree_cons (NULL_TREE, base,
12905 build_tree_list (NULL_TREE, new_rhs)),
12907 TREE_SIDE_EFFECTS (check) = 1;
12909 /* We have to decide on an insertion point */
12910 if (TREE_CODE (lvalue) == COMPOUND_EXPR)
12913 if (flag_bounds_check)
12915 t = TREE_OPERAND (TREE_OPERAND (TREE_OPERAND (lvalue, 1), 0), 0);
12916 TREE_OPERAND (TREE_OPERAND (TREE_OPERAND (lvalue, 1), 0), 0) =
12917 build (COMPOUND_EXPR, void_type_node, t, check);
12920 TREE_OPERAND (lvalue, 1) = build (COMPOUND_EXPR, lhs_type,
12921 check, TREE_OPERAND (lvalue, 1));
12923 else if (flag_bounds_check)
12925 tree hook = lvalue;
12926 tree compound = TREE_OPERAND (lvalue, 0);
12927 tree bound_check, new_compound;
12929 if (TREE_CODE (compound) == SAVE_EXPR)
12931 compound = TREE_OPERAND (compound, 0);
12932 hook = TREE_OPERAND (hook, 0);
12935 /* Find the array bound check, hook the original array access. */
12936 bound_check = TREE_OPERAND (compound, 0);
12937 TREE_OPERAND (hook, 0) = TREE_OPERAND (compound, 1);
12939 /* Make sure the bound check will happen before the store check */
12941 build (COMPOUND_EXPR, void_type_node, bound_check, check);
12943 /* Re-assemble the augmented array access. */
12944 lvalue = build (COMPOUND_EXPR, lhs_type, new_compound, lvalue);
12947 lvalue = build (COMPOUND_EXPR, lhs_type, check, lvalue);
12950 /* Final locals can be used as case values in switch
12951 statement. Prepare them for this eventuality. */
12952 if (TREE_CODE (lvalue) == VAR_DECL
12953 && LOCAL_FINAL_P (lvalue)
12954 && TREE_CONSTANT (new_rhs)
12955 && IDENTIFIER_LOCAL_VALUE (DECL_NAME (lvalue))
12956 && JINTEGRAL_TYPE_P (TREE_TYPE (lvalue))
12959 TREE_CONSTANT (lvalue) = 1;
12960 DECL_INITIAL (lvalue) = new_rhs;
12963 TREE_OPERAND (node, 0) = lvalue;
12964 TREE_OPERAND (node, 1) = new_rhs;
12965 TREE_TYPE (node) = lhs_type;
12969 /* Check that type SOURCE can be cast into type DEST. If the cast
12970 can't occur at all, return 0 otherwise 1. This function is used to
12971 produce accurate error messages on the reasons why an assignment
12975 try_reference_assignconv (lhs_type, rhs)
12976 tree lhs_type, rhs;
12978 tree new_rhs = NULL_TREE;
12979 tree rhs_type = TREE_TYPE (rhs);
12981 if (!JPRIMITIVE_TYPE_P (rhs_type) && JREFERENCE_TYPE_P (lhs_type))
12983 /* `null' may be assigned to any reference type */
12984 if (rhs == null_pointer_node)
12985 new_rhs = null_pointer_node;
12986 /* Try the reference assignment conversion */
12987 else if (valid_ref_assignconv_cast_p (rhs_type, lhs_type, 0))
12989 /* This is a magic assignment that we process differently */
12990 else if (TREE_CODE (rhs) == JAVA_EXC_OBJ_EXPR)
12996 /* Check that RHS can be converted into LHS_TYPE by the assignment
12997 conversion (5.2), for the cases of RHS being a builtin type. Return
12998 NULL_TREE if the conversion fails or if because RHS isn't of a
12999 builtin type. Return a converted RHS if the conversion is possible. */
13002 try_builtin_assignconv (wfl_op1, lhs_type, rhs)
13003 tree wfl_op1, lhs_type, rhs;
13005 tree new_rhs = NULL_TREE;
13006 tree rhs_type = TREE_TYPE (rhs);
13008 /* Handle boolean specially. */
13009 if (TREE_CODE (rhs_type) == BOOLEAN_TYPE
13010 || TREE_CODE (lhs_type) == BOOLEAN_TYPE)
13012 if (TREE_CODE (rhs_type) == BOOLEAN_TYPE
13013 && TREE_CODE (lhs_type) == BOOLEAN_TYPE)
13017 /* Zero accepted everywhere */
13018 else if (TREE_CODE (rhs) == INTEGER_CST
13019 && TREE_INT_CST_HIGH (rhs) == 0 && TREE_INT_CST_LOW (rhs) == 0
13020 && JPRIMITIVE_TYPE_P (rhs_type))
13021 new_rhs = convert (lhs_type, rhs);
13023 /* 5.1.1 Try Identity Conversion,
13024 5.1.2 Try Widening Primitive Conversion */
13025 else if (valid_builtin_assignconv_identity_widening_p (lhs_type, rhs_type))
13026 new_rhs = convert (lhs_type, rhs);
13028 /* Try a narrowing primitive conversion (5.1.3):
13029 - expression is a constant expression of type int AND
13030 - variable is byte, short or char AND
13031 - The value of the expression is representable in the type of the
13033 else if (rhs_type == int_type_node && TREE_CONSTANT (rhs)
13034 && (lhs_type == byte_type_node || lhs_type == char_type_node
13035 || lhs_type == short_type_node))
13037 if (int_fits_type_p (rhs, lhs_type))
13038 new_rhs = convert (lhs_type, rhs);
13039 else if (wfl_op1) /* Might be called with a NULL */
13040 parse_warning_context
13041 (wfl_op1, "Constant expression `%s' too wide for narrowing primitive conversion to `%s'",
13042 print_int_node (rhs), lang_printable_name (lhs_type, 0));
13043 /* Reported a warning that will turn into an error further
13044 down, so we don't return */
13050 /* Return 1 if RHS_TYPE can be converted to LHS_TYPE by identity
13051 conversion (5.1.1) or widening primitive conversion (5.1.2). Return
13052 0 is the conversion test fails. This implements parts the method
13053 invocation convertion (5.3). */
13056 valid_builtin_assignconv_identity_widening_p (lhs_type, rhs_type)
13057 tree lhs_type, rhs_type;
13059 /* 5.1.1: This is the identity conversion part. */
13060 if (lhs_type == rhs_type)
13063 /* Reject non primitive types and boolean conversions. */
13064 if (!JNUMERIC_TYPE_P (lhs_type) || !JNUMERIC_TYPE_P (rhs_type))
13067 /* 5.1.2: widening primitive conversion. byte, even if it's smaller
13068 than a char can't be converted into a char. Short can't too, but
13069 the < test below takes care of that */
13070 if (lhs_type == char_type_node && rhs_type == byte_type_node)
13073 /* Accept all promoted type here. Note, we can't use <= in the test
13074 below, because we still need to bounce out assignments of short
13075 to char and the likes */
13076 if (lhs_type == int_type_node
13077 && (rhs_type == promoted_byte_type_node
13078 || rhs_type == promoted_short_type_node
13079 || rhs_type == promoted_char_type_node
13080 || rhs_type == promoted_boolean_type_node))
13083 /* From here, an integral is widened if its precision is smaller
13084 than the precision of the LHS or if the LHS is a floating point
13085 type, or the RHS is a float and the RHS a double. */
13086 if ((JINTEGRAL_TYPE_P (rhs_type) && JINTEGRAL_TYPE_P (lhs_type)
13087 && (TYPE_PRECISION (rhs_type) < TYPE_PRECISION (lhs_type)))
13088 || (JINTEGRAL_TYPE_P (rhs_type) && JFLOAT_TYPE_P (lhs_type))
13089 || (rhs_type == float_type_node && lhs_type == double_type_node))
13095 /* Check that something of SOURCE type can be assigned or cast to
13096 something of DEST type at runtime. Return 1 if the operation is
13097 valid, 0 otherwise. If CAST is set to 1, we're treating the case
13098 were SOURCE is cast into DEST, which borrows a lot of the
13099 assignment check. */
13102 valid_ref_assignconv_cast_p (source, dest, cast)
13107 /* SOURCE or DEST might be null if not from a declared entity. */
13108 if (!source || !dest)
13110 if (JNULLP_TYPE_P (source))
13112 if (TREE_CODE (source) == POINTER_TYPE)
13113 source = TREE_TYPE (source);
13114 if (TREE_CODE (dest) == POINTER_TYPE)
13115 dest = TREE_TYPE (dest);
13117 /* If source and dest are being compiled from bytecode, they may need to
13119 if (CLASS_P (source) && !CLASS_LOADED_P (source))
13121 load_class (source, 1);
13122 safe_layout_class (source);
13124 if (CLASS_P (dest) && !CLASS_LOADED_P (dest))
13126 load_class (dest, 1);
13127 safe_layout_class (dest);
13130 /* Case where SOURCE is a class type */
13131 if (TYPE_CLASS_P (source))
13133 if (TYPE_CLASS_P (dest))
13134 return (source == dest
13135 || inherits_from_p (source, dest)
13136 || (cast && inherits_from_p (dest, source)));
13137 if (TYPE_INTERFACE_P (dest))
13139 /* If doing a cast and SOURCE is final, the operation is
13140 always correct a compile time (because even if SOURCE
13141 does not implement DEST, a subclass of SOURCE might). */
13142 if (cast && !CLASS_FINAL (TYPE_NAME (source)))
13144 /* Otherwise, SOURCE must implement DEST */
13145 return interface_of_p (dest, source);
13147 /* DEST is an array, cast permited if SOURCE is of Object type */
13148 return (cast && source == object_type_node ? 1 : 0);
13150 if (TYPE_INTERFACE_P (source))
13152 if (TYPE_CLASS_P (dest))
13154 /* If not casting, DEST must be the Object type */
13156 return dest == object_type_node;
13157 /* We're doing a cast. The cast is always valid is class
13158 DEST is not final, otherwise, DEST must implement SOURCE */
13159 else if (!CLASS_FINAL (TYPE_NAME (dest)))
13162 return interface_of_p (source, dest);
13164 if (TYPE_INTERFACE_P (dest))
13166 /* If doing a cast, then if SOURCE and DEST contain method
13167 with the same signature but different return type, then
13168 this is a (compile time) error */
13171 tree method_source, method_dest;
13175 for (method_source = TYPE_METHODS (source); method_source;
13176 method_source = TREE_CHAIN (method_source))
13179 build_java_argument_signature (TREE_TYPE (method_source));
13180 source_type = TREE_TYPE (TREE_TYPE (method_source));
13181 source_name = DECL_NAME (method_source);
13182 for (method_dest = TYPE_METHODS (dest);
13183 method_dest; method_dest = TREE_CHAIN (method_dest))
13185 build_java_argument_signature (TREE_TYPE (method_dest))
13186 && source_name == DECL_NAME (method_dest)
13187 && source_type != TREE_TYPE (TREE_TYPE (method_dest)))
13193 return source == dest || interface_of_p (dest, source);
13199 && (DECL_NAME (TYPE_NAME (source)) == java_lang_cloneable
13200 || (DECL_NAME (TYPE_NAME (source))
13201 == java_io_serializable)));
13204 if (TYPE_ARRAY_P (source))
13206 if (TYPE_CLASS_P (dest))
13207 return dest == object_type_node;
13208 /* Can't cast an array to an interface unless the interface is
13209 java.lang.Cloneable or java.io.Serializable. */
13210 if (TYPE_INTERFACE_P (dest))
13211 return (DECL_NAME (TYPE_NAME (dest)) == java_lang_cloneable
13212 || DECL_NAME (TYPE_NAME (dest)) == java_io_serializable);
13215 tree source_element_type = TYPE_ARRAY_ELEMENT (source);
13216 tree dest_element_type = TYPE_ARRAY_ELEMENT (dest);
13218 /* In case of severe errors, they turn out null */
13219 if (!dest_element_type || !source_element_type)
13221 if (source_element_type == dest_element_type)
13223 return valid_ref_assignconv_cast_p (source_element_type,
13224 dest_element_type, cast);
13232 valid_cast_to_p (source, dest)
13236 if (TREE_CODE (source) == POINTER_TYPE)
13237 source = TREE_TYPE (source);
13238 if (TREE_CODE (dest) == POINTER_TYPE)
13239 dest = TREE_TYPE (dest);
13241 if (TREE_CODE (source) == RECORD_TYPE && TREE_CODE (dest) == RECORD_TYPE)
13242 return valid_ref_assignconv_cast_p (source, dest, 1);
13244 else if (JNUMERIC_TYPE_P (source) && JNUMERIC_TYPE_P (dest))
13247 else if (TREE_CODE (source) == BOOLEAN_TYPE
13248 && TREE_CODE (dest) == BOOLEAN_TYPE)
13255 do_unary_numeric_promotion (arg)
13258 tree type = TREE_TYPE (arg);
13259 if ((TREE_CODE (type) == INTEGER_TYPE && TYPE_PRECISION (type) < 32)
13260 || TREE_CODE (type) == CHAR_TYPE)
13261 arg = convert (int_type_node, arg);
13265 /* Return a non zero value if SOURCE can be converted into DEST using
13266 the method invocation conversion rule (5.3). */
13268 valid_method_invocation_conversion_p (dest, source)
13271 return ((JPRIMITIVE_TYPE_P (source) && JPRIMITIVE_TYPE_P (dest)
13272 && valid_builtin_assignconv_identity_widening_p (dest, source))
13273 || ((JREFERENCE_TYPE_P (source) || JNULLP_TYPE_P (source))
13274 && (JREFERENCE_TYPE_P (dest) || JNULLP_TYPE_P (dest))
13275 && valid_ref_assignconv_cast_p (source, dest, 0)));
13278 /* Build an incomplete binop expression. */
13281 build_binop (op, op_location, op1, op2)
13286 tree binop = build (op, NULL_TREE, op1, op2);
13287 TREE_SIDE_EFFECTS (binop) = 1;
13288 /* Store the location of the operator, for better error report. The
13289 string of the operator will be rebuild based on the OP value. */
13290 EXPR_WFL_LINECOL (binop) = op_location;
13294 /* Build the string of the operator retained by NODE. If NODE is part
13295 of a compound expression, add an '=' at the end of the string. This
13296 function is called when an error needs to be reported on an
13297 operator. The string is returned as a pointer to a static character
13301 operator_string (node)
13304 #define BUILD_OPERATOR_STRING(S) \
13306 sprintf (buffer, "%s%s", S, (COMPOUND_ASSIGN_P (node) ? "=" : "")); \
13310 static char buffer [10];
13311 switch (TREE_CODE (node))
13313 case MULT_EXPR: BUILD_OPERATOR_STRING ("*");
13314 case RDIV_EXPR: BUILD_OPERATOR_STRING ("/");
13315 case TRUNC_MOD_EXPR: BUILD_OPERATOR_STRING ("%");
13316 case PLUS_EXPR: BUILD_OPERATOR_STRING ("+");
13317 case MINUS_EXPR: BUILD_OPERATOR_STRING ("-");
13318 case LSHIFT_EXPR: BUILD_OPERATOR_STRING ("<<");
13319 case RSHIFT_EXPR: BUILD_OPERATOR_STRING (">>");
13320 case URSHIFT_EXPR: BUILD_OPERATOR_STRING (">>>");
13321 case BIT_AND_EXPR: BUILD_OPERATOR_STRING ("&");
13322 case BIT_XOR_EXPR: BUILD_OPERATOR_STRING ("^");
13323 case BIT_IOR_EXPR: BUILD_OPERATOR_STRING ("|");
13324 case TRUTH_ANDIF_EXPR: BUILD_OPERATOR_STRING ("&&");
13325 case TRUTH_ORIF_EXPR: BUILD_OPERATOR_STRING ("||");
13326 case EQ_EXPR: BUILD_OPERATOR_STRING ("==");
13327 case NE_EXPR: BUILD_OPERATOR_STRING ("!=");
13328 case GT_EXPR: BUILD_OPERATOR_STRING (">");
13329 case GE_EXPR: BUILD_OPERATOR_STRING (">=");
13330 case LT_EXPR: BUILD_OPERATOR_STRING ("<");
13331 case LE_EXPR: BUILD_OPERATOR_STRING ("<=");
13332 case UNARY_PLUS_EXPR: BUILD_OPERATOR_STRING ("+");
13333 case NEGATE_EXPR: BUILD_OPERATOR_STRING ("-");
13334 case TRUTH_NOT_EXPR: BUILD_OPERATOR_STRING ("!");
13335 case BIT_NOT_EXPR: BUILD_OPERATOR_STRING ("~");
13336 case PREINCREMENT_EXPR: /* Fall through */
13337 case POSTINCREMENT_EXPR: BUILD_OPERATOR_STRING ("++");
13338 case PREDECREMENT_EXPR: /* Fall through */
13339 case POSTDECREMENT_EXPR: BUILD_OPERATOR_STRING ("--");
13341 internal_error ("unregistered operator %s",
13342 tree_code_name [TREE_CODE (node)]);
13345 #undef BUILD_OPERATOR_STRING
13348 /* Return 1 if VAR_ACCESS1 is equivalent to VAR_ACCESS2. */
13351 java_decl_equiv (var_acc1, var_acc2)
13352 tree var_acc1, var_acc2;
13354 if (JDECL_P (var_acc1))
13355 return (var_acc1 == var_acc2);
13357 return (TREE_CODE (var_acc1) == COMPONENT_REF
13358 && TREE_CODE (var_acc2) == COMPONENT_REF
13359 && TREE_OPERAND (TREE_OPERAND (var_acc1, 0), 0)
13360 == TREE_OPERAND (TREE_OPERAND (var_acc2, 0), 0)
13361 && TREE_OPERAND (var_acc1, 1) == TREE_OPERAND (var_acc2, 1));
13364 /* Return a non zero value if CODE is one of the operators that can be
13365 used in conjunction with the `=' operator in a compound assignment. */
13368 binop_compound_p (code)
13369 enum tree_code code;
13372 for (i = 0; i < BINOP_COMPOUND_CANDIDATES; i++)
13373 if (binop_lookup [i] == code)
13376 return i < BINOP_COMPOUND_CANDIDATES;
13379 /* Reorganize after a fold to get SAVE_EXPR to generate what we want. */
13385 tree c, b, ns, decl;
13387 if (TREE_CODE (t) != MODIFY_EXPR)
13390 c = TREE_OPERAND (t, 1);
13391 if (! (c && TREE_CODE (c) == COMPOUND_EXPR
13392 && TREE_CODE (TREE_OPERAND (c, 0)) == MODIFY_EXPR
13393 && binop_compound_p (TREE_CODE (TREE_OPERAND (c, 1)))))
13396 /* Now the left branch of the binary operator. */
13397 b = TREE_OPERAND (TREE_OPERAND (c, 1), 0);
13398 if (! (b && TREE_CODE (b) == NOP_EXPR
13399 && TREE_CODE (TREE_OPERAND (b, 0)) == SAVE_EXPR))
13402 ns = TREE_OPERAND (TREE_OPERAND (b, 0), 0);
13403 if (! (ns && TREE_CODE (ns) == NOP_EXPR
13404 && TREE_CODE (TREE_OPERAND (ns, 0)) == SAVE_EXPR))
13407 decl = TREE_OPERAND (TREE_OPERAND (ns, 0), 0);
13408 if ((JDECL_P (decl) || TREE_CODE (decl) == COMPONENT_REF)
13409 /* It's got to be the an equivalent decl */
13410 && java_decl_equiv (decl, TREE_OPERAND (TREE_OPERAND (c, 0), 0)))
13412 /* Shorten the NOP_EXPR/SAVE_EXPR path. */
13413 TREE_OPERAND (TREE_OPERAND (c, 1), 0) = TREE_OPERAND (ns, 0);
13414 /* Substitute the COMPOUND_EXPR by the BINOP_EXPR */
13415 TREE_OPERAND (t, 1) = TREE_OPERAND (c, 1);
13416 /* Change the right part of the BINOP_EXPR */
13417 TREE_OPERAND (TREE_OPERAND (t, 1), 1) = TREE_OPERAND (c, 0);
13423 /* Binary operators (15.16 up to 15.18). We return error_mark_node on
13424 errors but we modify NODE so that it contains the type computed
13425 according to the expression, when it's fixed. Otherwise, we write
13426 error_mark_node as the type. It allows us to further the analysis
13427 of remaining nodes and detects more errors in certain cases. */
13430 patch_binop (node, wfl_op1, wfl_op2)
13435 tree op1 = TREE_OPERAND (node, 0);
13436 tree op2 = TREE_OPERAND (node, 1);
13437 tree op1_type = TREE_TYPE (op1);
13438 tree op2_type = TREE_TYPE (op2);
13439 tree prom_type = NULL_TREE, cn;
13440 enum tree_code code = TREE_CODE (node);
13442 /* If 1, tell the routine that we have to return error_mark_node
13443 after checking for the initialization of the RHS */
13444 int error_found = 0;
13446 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
13448 /* If either op<n>_type are NULL, this might be early signs of an
13449 error situation, unless it's too early to tell (in case we're
13450 handling a `+', `==', `!=' or `instanceof'.) We want to set op<n>_type
13451 correctly so the error can be later on reported accurately. */
13452 if (! (code == PLUS_EXPR || code == NE_EXPR
13453 || code == EQ_EXPR || code == INSTANCEOF_EXPR))
13458 n = java_complete_tree (op1);
13459 op1_type = TREE_TYPE (n);
13463 n = java_complete_tree (op2);
13464 op2_type = TREE_TYPE (n);
13470 /* 15.16 Multiplicative operators */
13471 case MULT_EXPR: /* 15.16.1 Multiplication Operator * */
13472 case RDIV_EXPR: /* 15.16.2 Division Operator / */
13473 case TRUNC_DIV_EXPR: /* 15.16.2 Integral type Division Operator / */
13474 case TRUNC_MOD_EXPR: /* 15.16.3 Remainder operator % */
13475 if (!JNUMERIC_TYPE_P (op1_type) || !JNUMERIC_TYPE_P (op2_type))
13477 if (!JNUMERIC_TYPE_P (op1_type))
13478 ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op1_type);
13479 if (!JNUMERIC_TYPE_P (op2_type) && (op1_type != op2_type))
13480 ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op2_type);
13481 TREE_TYPE (node) = error_mark_node;
13485 prom_type = binary_numeric_promotion (op1_type, op2_type, &op1, &op2);
13487 /* Detect integral division by zero */
13488 if ((code == RDIV_EXPR || code == TRUNC_MOD_EXPR)
13489 && TREE_CODE (prom_type) == INTEGER_TYPE
13490 && (op2 == integer_zero_node || op2 == long_zero_node ||
13491 (TREE_CODE (op2) == INTEGER_CST &&
13492 ! TREE_INT_CST_LOW (op2) && ! TREE_INT_CST_HIGH (op2))))
13494 parse_error_context (wfl_operator, "Arithmetic exception");
13498 /* Change the division operator if necessary */
13499 if (code == RDIV_EXPR && TREE_CODE (prom_type) == INTEGER_TYPE)
13500 TREE_SET_CODE (node, TRUNC_DIV_EXPR);
13502 /* Before divisions as is disapear, try to simplify and bail if
13503 applicable, otherwise we won't perform even simple simplifications
13505 if (code == RDIV_EXPR && TREE_CONSTANT (op1) && TREE_CONSTANT (op2))
13507 TREE_TYPE (node) = prom_type;
13508 node = fold (node);
13509 if (TREE_CODE (node) != code)
13513 if (TREE_CODE (prom_type) == INTEGER_TYPE
13514 && flag_use_divide_subroutine
13515 && ! flag_emit_class_files
13516 && (code == RDIV_EXPR || code == TRUNC_MOD_EXPR))
13517 return build_java_soft_divmod (TREE_CODE (node), prom_type, op1, op2);
13519 /* This one is more complicated. FLOATs are processed by a
13520 function call to soft_fmod. Duplicate the value of the
13521 COMPOUND_ASSIGN_P flag. */
13522 if (code == TRUNC_MOD_EXPR)
13524 tree mod = build_java_binop (TRUNC_MOD_EXPR, prom_type, op1, op2);
13525 COMPOUND_ASSIGN_P (mod) = COMPOUND_ASSIGN_P (node);
13526 TREE_SIDE_EFFECTS (mod)
13527 = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2);
13532 /* 15.17 Additive Operators */
13533 case PLUS_EXPR: /* 15.17.1 String Concatenation Operator + */
13535 /* Operation is valid if either one argument is a string
13536 constant, a String object or a StringBuffer crafted for the
13537 purpose of the a previous usage of the String concatenation
13540 if (TREE_CODE (op1) == STRING_CST
13541 || TREE_CODE (op2) == STRING_CST
13542 || JSTRING_TYPE_P (op1_type)
13543 || JSTRING_TYPE_P (op2_type)
13544 || IS_CRAFTED_STRING_BUFFER_P (op1)
13545 || IS_CRAFTED_STRING_BUFFER_P (op2))
13546 return build_string_concatenation (op1, op2);
13548 case MINUS_EXPR: /* 15.17.2 Additive Operators (+ and -) for
13550 if (!JNUMERIC_TYPE_P (op1_type) || !JNUMERIC_TYPE_P (op2_type))
13552 if (!JNUMERIC_TYPE_P (op1_type))
13553 ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op1_type);
13554 if (!JNUMERIC_TYPE_P (op2_type) && (op1_type != op2_type))
13555 ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op2_type);
13556 TREE_TYPE (node) = error_mark_node;
13560 prom_type = binary_numeric_promotion (op1_type, op2_type, &op1, &op2);
13563 /* 15.18 Shift Operators */
13567 if (!JINTEGRAL_TYPE_P (op1_type) || !JINTEGRAL_TYPE_P (op2_type))
13569 if (!JINTEGRAL_TYPE_P (op1_type))
13570 ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op1_type);
13573 if (JNUMERIC_TYPE_P (op2_type))
13574 parse_error_context (wfl_operator,
13575 "Incompatible type for `%s'. Explicit cast needed to convert shift distance from `%s' to integral",
13576 operator_string (node),
13577 lang_printable_name (op2_type, 0));
13579 parse_error_context (wfl_operator,
13580 "Incompatible type for `%s'. Can't convert shift distance from `%s' to integral",
13581 operator_string (node),
13582 lang_printable_name (op2_type, 0));
13584 TREE_TYPE (node) = error_mark_node;
13589 /* Unary numeric promotion (5.6.1) is performed on each operand
13591 op1 = do_unary_numeric_promotion (op1);
13592 op2 = do_unary_numeric_promotion (op2);
13594 /* The type of the shift expression is the type of the promoted
13595 type of the left-hand operand */
13596 prom_type = TREE_TYPE (op1);
13598 /* Shift int only up to 0x1f and long up to 0x3f */
13599 if (prom_type == int_type_node)
13600 op2 = fold (build (BIT_AND_EXPR, int_type_node, op2,
13601 build_int_2 (0x1f, 0)));
13603 op2 = fold (build (BIT_AND_EXPR, int_type_node, op2,
13604 build_int_2 (0x3f, 0)));
13606 /* The >>> operator is a >> operating on unsigned quantities */
13607 if (code == URSHIFT_EXPR && ! flag_emit_class_files)
13610 tree utype = unsigned_type (prom_type);
13611 op1 = convert (utype, op1);
13612 TREE_SET_CODE (node, RSHIFT_EXPR);
13613 TREE_OPERAND (node, 0) = op1;
13614 TREE_OPERAND (node, 1) = op2;
13615 TREE_TYPE (node) = utype;
13616 to_return = convert (prom_type, node);
13617 /* Copy the original value of the COMPOUND_ASSIGN_P flag */
13618 COMPOUND_ASSIGN_P (to_return) = COMPOUND_ASSIGN_P (node);
13619 TREE_SIDE_EFFECTS (to_return)
13620 = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2);
13625 /* 15.19.1 Type Comparison Operator instaceof */
13626 case INSTANCEOF_EXPR:
13628 TREE_TYPE (node) = boolean_type_node;
13630 if (!(op2_type = resolve_type_during_patch (op2)))
13631 return error_mark_node;
13633 /* The first operand must be a reference type or the null type */
13634 if (!JREFERENCE_TYPE_P (op1_type) && op1 != null_pointer_node)
13635 error_found = 1; /* Error reported further below */
13637 /* The second operand must be a reference type */
13638 if (!JREFERENCE_TYPE_P (op2_type))
13640 SET_WFL_OPERATOR (wfl_operator, node, wfl_op2);
13641 parse_error_context
13642 (wfl_operator, "Invalid argument `%s' for `instanceof'",
13643 lang_printable_name (op2_type, 0));
13647 if (!error_found && valid_ref_assignconv_cast_p (op1_type, op2_type, 1))
13649 /* If the first operand is null, the result is always false */
13650 if (op1 == null_pointer_node)
13651 return boolean_false_node;
13652 else if (flag_emit_class_files)
13654 TREE_OPERAND (node, 1) = op2_type;
13655 TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (op1);
13658 /* Otherwise we have to invoke instance of to figure it out */
13660 return build_instanceof (op1, op2_type);
13662 /* There is no way the expression operand can be an instance of
13663 the type operand. This is a compile time error. */
13666 char *t1 = xstrdup (lang_printable_name (op1_type, 0));
13667 SET_WFL_OPERATOR (wfl_operator, node, wfl_op1);
13668 parse_error_context
13669 (wfl_operator, "Impossible for `%s' to be instance of `%s'",
13670 t1, lang_printable_name (op2_type, 0));
13677 /* 15.21 Bitwise and Logical Operators */
13681 if (JINTEGRAL_TYPE_P (op1_type) && JINTEGRAL_TYPE_P (op2_type))
13682 /* Binary numeric promotion is performed on both operand and the
13683 expression retain that type */
13684 prom_type = binary_numeric_promotion (op1_type, op2_type, &op1, &op2);
13686 else if (TREE_CODE (op1_type) == BOOLEAN_TYPE
13687 && TREE_CODE (op1_type) == BOOLEAN_TYPE)
13688 /* The type of the bitwise operator expression is BOOLEAN */
13689 prom_type = boolean_type_node;
13692 if (!JINTEGRAL_TYPE_P (op1_type))
13693 ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op1_type);
13694 if (!JINTEGRAL_TYPE_P (op2_type) && (op1_type != op2_type))
13695 ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op2_type);
13696 TREE_TYPE (node) = error_mark_node;
13698 /* Insert a break here if adding thing before the switch's
13699 break for this case */
13703 /* 15.22 Conditional-And Operator */
13704 case TRUTH_ANDIF_EXPR:
13705 /* 15.23 Conditional-Or Operator */
13706 case TRUTH_ORIF_EXPR:
13707 /* Operands must be of BOOLEAN type */
13708 if (TREE_CODE (op1_type) != BOOLEAN_TYPE ||
13709 TREE_CODE (op2_type) != BOOLEAN_TYPE)
13711 if (TREE_CODE (op1_type) != BOOLEAN_TYPE)
13712 ERROR_CANT_CONVERT_TO_BOOLEAN (wfl_operator, node, op1_type);
13713 if (TREE_CODE (op2_type) != BOOLEAN_TYPE && (op1_type != op2_type))
13714 ERROR_CANT_CONVERT_TO_BOOLEAN (wfl_operator, node, op2_type);
13715 TREE_TYPE (node) = boolean_type_node;
13719 /* The type of the conditional operators is BOOLEAN */
13720 prom_type = boolean_type_node;
13723 /* 15.19.1 Numerical Comparison Operators <, <=, >, >= */
13728 /* The type of each of the operands must be a primitive numeric
13730 if (!JNUMERIC_TYPE_P (op1_type) || ! JNUMERIC_TYPE_P (op2_type))
13732 if (!JNUMERIC_TYPE_P (op1_type))
13733 ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op1_type);
13734 if (!JNUMERIC_TYPE_P (op2_type) && (op1_type != op2_type))
13735 ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op2_type);
13736 TREE_TYPE (node) = boolean_type_node;
13740 /* Binary numeric promotion is performed on the operands */
13741 binary_numeric_promotion (op1_type, op2_type, &op1, &op2);
13742 /* The type of the relation expression is always BOOLEAN */
13743 prom_type = boolean_type_node;
13746 /* 15.20 Equality Operator */
13749 /* It's time for us to patch the strings. */
13750 if ((cn = patch_string (op1)))
13753 op1_type = TREE_TYPE (op1);
13755 if ((cn = patch_string (op2)))
13758 op2_type = TREE_TYPE (op2);
13761 /* 15.20.1 Numerical Equality Operators == and != */
13762 /* Binary numeric promotion is performed on the operands */
13763 if (JNUMERIC_TYPE_P (op1_type) && JNUMERIC_TYPE_P (op2_type))
13764 binary_numeric_promotion (op1_type, op2_type, &op1, &op2);
13766 /* 15.20.2 Boolean Equality Operators == and != */
13767 else if (TREE_CODE (op1_type) == BOOLEAN_TYPE &&
13768 TREE_CODE (op2_type) == BOOLEAN_TYPE)
13769 ; /* Nothing to do here */
13771 /* 15.20.3 Reference Equality Operators == and != */
13772 /* Types have to be either references or the null type. If
13773 they're references, it must be possible to convert either
13774 type to the other by casting conversion. */
13775 else if (op1 == null_pointer_node || op2 == null_pointer_node
13776 || (JREFERENCE_TYPE_P (op1_type) && JREFERENCE_TYPE_P (op2_type)
13777 && (valid_ref_assignconv_cast_p (op1_type, op2_type, 1)
13778 || valid_ref_assignconv_cast_p (op2_type,
13780 ; /* Nothing to do here */
13782 /* Else we have an error figure what can't be converted into
13783 what and report the error */
13787 t1 = xstrdup (lang_printable_name (op1_type, 0));
13788 parse_error_context
13790 "Incompatible type for `%s'. Can't convert `%s' to `%s'",
13791 operator_string (node), t1,
13792 lang_printable_name (op2_type, 0));
13794 TREE_TYPE (node) = boolean_type_node;
13798 prom_type = boolean_type_node;
13805 return error_mark_node;
13807 TREE_OPERAND (node, 0) = op1;
13808 TREE_OPERAND (node, 1) = op2;
13809 TREE_TYPE (node) = prom_type;
13810 TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2);
13812 if (flag_emit_xref)
13815 /* fold does not respect side-effect order as required for Java but not C.
13816 * Also, it sometimes create SAVE_EXPRs which are bad when emitting
13819 if (flag_emit_class_files ? (TREE_CONSTANT (op1) && TREE_CONSTANT (op2))
13820 : ! TREE_SIDE_EFFECTS (node))
13821 node = fold (node);
13825 /* Concatenate the STRING_CST CSTE and STRING. When AFTER is a non
13826 zero value, the value of CSTE comes after the valude of STRING */
13829 do_merge_string_cste (cste, string, string_len, after)
13831 const char *string;
13832 int string_len, after;
13834 const char *old = TREE_STRING_POINTER (cste);
13835 int old_len = TREE_STRING_LENGTH (cste);
13836 int len = old_len + string_len;
13837 char *new = alloca (len+1);
13841 memcpy (new, string, string_len);
13842 memcpy (&new [string_len], old, old_len);
13846 memcpy (new, old, old_len);
13847 memcpy (&new [old_len], string, string_len);
13850 return build_string (len, new);
13853 /* Tries to merge OP1 (a STRING_CST) and OP2 (if suitable). Return a
13854 new STRING_CST on success, NULL_TREE on failure */
13857 merge_string_cste (op1, op2, after)
13861 /* Handle two string constants right away */
13862 if (TREE_CODE (op2) == STRING_CST)
13863 return do_merge_string_cste (op1, TREE_STRING_POINTER (op2),
13864 TREE_STRING_LENGTH (op2), after);
13866 /* Reasonable integer constant can be treated right away */
13867 if (TREE_CODE (op2) == INTEGER_CST && !TREE_CONSTANT_OVERFLOW (op2))
13869 static const char *boolean_true = "true";
13870 static const char *boolean_false = "false";
13871 static const char *null_pointer = "null";
13873 const char *string;
13875 if (op2 == boolean_true_node)
13876 string = boolean_true;
13877 else if (op2 == boolean_false_node)
13878 string = boolean_false;
13879 else if (op2 == null_pointer_node)
13880 string = null_pointer;
13881 else if (TREE_TYPE (op2) == char_type_node)
13883 ch[0] = (char )TREE_INT_CST_LOW (op2);
13888 string = print_int_node (op2);
13890 return do_merge_string_cste (op1, string, strlen (string), after);
13895 /* Tries to statically concatenate OP1 and OP2 if possible. Either one
13896 has to be a STRING_CST and the other part must be a STRING_CST or a
13897 INTEGRAL constant. Return a new STRING_CST if the operation
13898 succeed, NULL_TREE otherwise.
13900 If the case we want to optimize for space, we might want to return
13901 NULL_TREE for each invocation of this routine. FIXME */
13904 string_constant_concatenation (op1, op2)
13907 if (TREE_CODE (op1) == STRING_CST || (TREE_CODE (op2) == STRING_CST))
13912 string = (TREE_CODE (op1) == STRING_CST ? op1 : op2);
13913 rest = (string == op1 ? op2 : op1);
13914 invert = (string == op1 ? 0 : 1 );
13916 /* Walk REST, only if it looks reasonable */
13917 if (TREE_CODE (rest) != STRING_CST
13918 && !IS_CRAFTED_STRING_BUFFER_P (rest)
13919 && !JSTRING_TYPE_P (TREE_TYPE (rest))
13920 && TREE_CODE (rest) == EXPR_WITH_FILE_LOCATION)
13922 rest = java_complete_tree (rest);
13923 if (rest == error_mark_node)
13924 return error_mark_node;
13925 rest = fold (rest);
13927 return merge_string_cste (string, rest, invert);
13932 /* Implement the `+' operator. Does static optimization if possible,
13933 otherwise create (if necessary) and append elements to a
13934 StringBuffer. The StringBuffer will be carried around until it is
13935 used for a function call or an assignment. Then toString() will be
13936 called on it to turn it into a String object. */
13939 build_string_concatenation (op1, op2)
13943 int side_effects = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2);
13945 if (flag_emit_xref)
13946 return build (PLUS_EXPR, string_type_node, op1, op2);
13948 /* Try to do some static optimization */
13949 if ((result = string_constant_concatenation (op1, op2)))
13952 /* Discard empty strings on either side of the expression */
13953 if (TREE_CODE (op1) == STRING_CST && TREE_STRING_LENGTH (op1) == 0)
13958 else if (TREE_CODE (op2) == STRING_CST && TREE_STRING_LENGTH (op2) == 0)
13961 /* If operands are string constant, turn then into object references */
13962 if (TREE_CODE (op1) == STRING_CST)
13963 op1 = patch_string_cst (op1);
13964 if (op2 && TREE_CODE (op2) == STRING_CST)
13965 op2 = patch_string_cst (op2);
13967 /* If either one of the constant is null and the other non null
13968 operand is a String object, return it. */
13969 if (JSTRING_TYPE_P (TREE_TYPE (op1)) && !op2)
13972 /* If OP1 isn't already a StringBuffer, create and
13973 initialize a new one */
13974 if (!IS_CRAFTED_STRING_BUFFER_P (op1))
13976 /* Two solutions here:
13977 1) OP1 is a constant string reference, we call new StringBuffer(OP1)
13978 2) OP1 is something else, we call new StringBuffer().append(OP1). */
13979 if (TREE_CONSTANT (op1) && JSTRING_TYPE_P (TREE_TYPE (op1)))
13980 op1 = BUILD_STRING_BUFFER (op1);
13983 tree aNew = BUILD_STRING_BUFFER (NULL_TREE);
13984 op1 = make_qualified_primary (aNew, BUILD_APPEND (op1), 0);
13990 /* OP1 is no longer the last node holding a crafted StringBuffer */
13991 IS_CRAFTED_STRING_BUFFER_P (op1) = 0;
13992 /* Create a node for `{new...,xxx}.append (op2)' */
13994 op1 = make_qualified_primary (op1, BUILD_APPEND (op2), 0);
13997 /* Mark the last node holding a crafted StringBuffer */
13998 IS_CRAFTED_STRING_BUFFER_P (op1) = 1;
14000 TREE_SIDE_EFFECTS (op1) = side_effects;
14004 /* Patch the string node NODE. NODE can be a STRING_CST of a crafted
14005 StringBuffer. If no string were found to be patched, return
14009 patch_string (node)
14012 if (node == error_mark_node)
14013 return error_mark_node;
14014 if (TREE_CODE (node) == STRING_CST)
14015 return patch_string_cst (node);
14016 else if (IS_CRAFTED_STRING_BUFFER_P (node))
14018 int saved = ctxp->explicit_constructor_p;
14019 tree invoke = build_method_invocation (wfl_to_string, NULL_TREE);
14021 /* Temporary disable forbid the use of `this'. */
14022 ctxp->explicit_constructor_p = 0;
14023 ret = java_complete_tree (make_qualified_primary (node, invoke, 0));
14024 /* String concatenation arguments must be evaluated in order too. */
14025 ret = force_evaluation_order (ret);
14026 /* Restore it at its previous value */
14027 ctxp->explicit_constructor_p = saved;
14033 /* Build the internal representation of a string constant. */
14036 patch_string_cst (node)
14040 if (! flag_emit_class_files)
14042 node = get_identifier (TREE_STRING_POINTER (node));
14043 location = alloc_name_constant (CONSTANT_String, node);
14044 node = build_ref_from_constant_pool (location);
14046 TREE_TYPE (node) = string_ptr_type_node;
14047 TREE_CONSTANT (node) = 1;
14051 /* Build an incomplete unary operator expression. */
14054 build_unaryop (op_token, op_location, op1)
14055 int op_token, op_location;
14062 case PLUS_TK: op = UNARY_PLUS_EXPR; break;
14063 case MINUS_TK: op = NEGATE_EXPR; break;
14064 case NEG_TK: op = TRUTH_NOT_EXPR; break;
14065 case NOT_TK: op = BIT_NOT_EXPR; break;
14069 unaryop = build1 (op, NULL_TREE, op1);
14070 TREE_SIDE_EFFECTS (unaryop) = 1;
14071 /* Store the location of the operator, for better error report. The
14072 string of the operator will be rebuild based on the OP value. */
14073 EXPR_WFL_LINECOL (unaryop) = op_location;
14077 /* Special case for the ++/-- operators, since they require an extra
14078 argument to build, which is set to NULL and patched
14079 later. IS_POST_P is 1 if the operator, 0 otherwise. */
14082 build_incdec (op_token, op_location, op1, is_post_p)
14083 int op_token, op_location;
14087 static enum tree_code lookup [2][2] =
14089 { PREDECREMENT_EXPR, PREINCREMENT_EXPR, },
14090 { POSTDECREMENT_EXPR, POSTINCREMENT_EXPR, },
14092 tree node = build (lookup [is_post_p][(op_token - DECR_TK)],
14093 NULL_TREE, op1, NULL_TREE);
14094 TREE_SIDE_EFFECTS (node) = 1;
14095 /* Store the location of the operator, for better error report. The
14096 string of the operator will be rebuild based on the OP value. */
14097 EXPR_WFL_LINECOL (node) = op_location;
14101 /* Build an incomplete cast operator, based on the use of the
14102 CONVERT_EXPR. Note that TREE_TYPE of the constructed node is
14103 set. java_complete_tree is trained to walk a CONVERT_EXPR even
14104 though its type is already set. */
14107 build_cast (location, type, exp)
14111 tree node = build1 (CONVERT_EXPR, type, exp);
14112 EXPR_WFL_LINECOL (node) = location;
14116 /* Build an incomplete class reference operator. */
14118 build_incomplete_class_ref (location, class_name)
14122 tree node = build1 (CLASS_LITERAL, NULL_TREE, class_name);
14123 EXPR_WFL_LINECOL (node) = location;
14127 /* Complete an incomplete class reference operator. */
14129 patch_incomplete_class_ref (node)
14132 tree type = TREE_OPERAND (node, 0);
14135 if (!(ref_type = resolve_type_during_patch (type)))
14136 return error_mark_node;
14138 if (!flag_emit_class_files || JPRIMITIVE_TYPE_P (ref_type))
14140 tree dot = build_class_ref (ref_type);
14141 /* A class referenced by `foo.class' is initialized. */
14142 if (!flag_emit_class_files)
14143 dot = build_class_init (ref_type, dot);
14144 return java_complete_tree (dot);
14147 /* If we're emitting class files and we have to deal with non
14148 primitive types, we invoke (and consider generating) the
14149 synthetic static method `class$'. */
14150 if (!TYPE_DOT_CLASS (current_class))
14151 build_dot_class_method (current_class);
14152 ref_type = build_dot_class_method_invocation (ref_type);
14153 return java_complete_tree (ref_type);
14156 /* 15.14 Unary operators. We return error_mark_node in case of error,
14157 but preserve the type of NODE if the type is fixed. */
14160 patch_unaryop (node, wfl_op)
14164 tree op = TREE_OPERAND (node, 0);
14165 tree op_type = TREE_TYPE (op);
14166 tree prom_type = NULL_TREE, value, decl;
14167 int outer_field_flag = 0;
14168 int code = TREE_CODE (node);
14169 int error_found = 0;
14171 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
14175 /* 15.13.2 Postfix Increment Operator ++ */
14176 case POSTINCREMENT_EXPR:
14177 /* 15.13.3 Postfix Increment Operator -- */
14178 case POSTDECREMENT_EXPR:
14179 /* 15.14.1 Prefix Increment Operator ++ */
14180 case PREINCREMENT_EXPR:
14181 /* 15.14.2 Prefix Decrement Operator -- */
14182 case PREDECREMENT_EXPR:
14183 op = decl = strip_out_static_field_access_decl (op);
14184 outer_field_flag = outer_field_expanded_access_p (op, NULL, NULL, NULL);
14185 /* We might be trying to change an outer field accessed using
14187 if (outer_field_flag)
14189 /* Retrieve the decl of the field we're trying to access. We
14190 do that by first retrieving the function we would call to
14191 access the field. It has been already verified that this
14192 field isn't final */
14193 if (flag_emit_class_files)
14194 decl = TREE_OPERAND (op, 0);
14196 decl = TREE_OPERAND (TREE_OPERAND (TREE_OPERAND (op, 0), 0), 0);
14197 decl = DECL_FUNCTION_ACCESS_DECL (decl);
14199 /* We really should have a JAVA_ARRAY_EXPR to avoid this */
14200 else if (!JDECL_P (decl)
14201 && TREE_CODE (decl) != COMPONENT_REF
14202 && !(flag_emit_class_files && TREE_CODE (decl) == ARRAY_REF)
14203 && TREE_CODE (decl) != INDIRECT_REF
14204 && !(TREE_CODE (decl) == COMPOUND_EXPR
14205 && TREE_OPERAND (decl, 1)
14206 && (TREE_CODE (TREE_OPERAND (decl, 1)) == INDIRECT_REF)))
14209 /* Before screaming, check that we're not in fact trying to
14210 increment a optimized static final access, in which case
14211 we issue an different error message. */
14212 if (!(TREE_CODE (wfl_op) == EXPR_WITH_FILE_LOCATION
14213 && resolve_expression_name (wfl_op, &lvalue)
14214 && check_final_assignment (lvalue, wfl_op)))
14215 parse_error_context (wfl_operator, "Invalid argument to `%s'",
14216 operator_string (node));
14217 TREE_TYPE (node) = error_mark_node;
14221 if (check_final_assignment (op, wfl_op))
14224 /* From now on, we know that op if a variable and that it has a
14225 valid wfl. We use wfl_op to locate errors related to the
14227 else if (!JNUMERIC_TYPE_P (op_type))
14229 parse_error_context
14230 (wfl_op, "Invalid argument type `%s' to `%s'",
14231 lang_printable_name (op_type, 0), operator_string (node));
14232 TREE_TYPE (node) = error_mark_node;
14237 /* Before the addition, binary numeric promotion is performed on
14238 both operands, if really necessary */
14239 if (JINTEGRAL_TYPE_P (op_type))
14241 value = build_int_2 (1, 0);
14242 TREE_TYPE (value) = TREE_TYPE (node) = op_type;
14246 value = build_int_2 (1, 0);
14248 binary_numeric_promotion (op_type,
14249 TREE_TYPE (value), &op, &value);
14252 /* We remember we might be accessing an outer field */
14253 if (outer_field_flag)
14255 /* We re-generate an access to the field */
14256 value = build (PLUS_EXPR, TREE_TYPE (op),
14257 build_outer_field_access (wfl_op, decl), value);
14259 /* And we patch the original access$() into a write
14260 with plus_op as a rhs */
14261 return outer_field_access_fix (node, op, value);
14264 /* And write back into the node. */
14265 TREE_OPERAND (node, 0) = op;
14266 TREE_OPERAND (node, 1) = value;
14267 /* Convert the overall back into its original type, if
14268 necessary, and return */
14269 if (JINTEGRAL_TYPE_P (op_type))
14270 return fold (node);
14272 return fold (convert (op_type, node));
14276 /* 15.14.3 Unary Plus Operator + */
14277 case UNARY_PLUS_EXPR:
14278 /* 15.14.4 Unary Minus Operator - */
14280 if (!JNUMERIC_TYPE_P (op_type))
14282 ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op_type);
14283 TREE_TYPE (node) = error_mark_node;
14286 /* Unary numeric promotion is performed on operand */
14289 op = do_unary_numeric_promotion (op);
14290 prom_type = TREE_TYPE (op);
14291 if (code == UNARY_PLUS_EXPR)
14296 /* 15.14.5 Bitwise Complement Operator ~ */
14298 if (!JINTEGRAL_TYPE_P (op_type))
14300 ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op_type);
14301 TREE_TYPE (node) = error_mark_node;
14306 op = do_unary_numeric_promotion (op);
14307 prom_type = TREE_TYPE (op);
14311 /* 15.14.6 Logical Complement Operator ! */
14312 case TRUTH_NOT_EXPR:
14313 if (TREE_CODE (op_type) != BOOLEAN_TYPE)
14315 ERROR_CANT_CONVERT_TO_BOOLEAN (wfl_operator, node, op_type);
14316 /* But the type is known. We will report an error if further
14317 attempt of a assignment is made with this rhs */
14318 TREE_TYPE (node) = boolean_type_node;
14322 prom_type = boolean_type_node;
14325 /* 15.15 Cast Expression */
14327 value = patch_cast (node, wfl_operator);
14328 if (value == error_mark_node)
14330 /* If this cast is part of an assignment, we tell the code
14331 that deals with it not to complain about a mismatch,
14332 because things have been cast, anyways */
14333 TREE_TYPE (node) = error_mark_node;
14338 value = fold (value);
14339 TREE_SIDE_EFFECTS (value) = TREE_SIDE_EFFECTS (op);
14346 return error_mark_node;
14348 /* There are cases where node has been replaced by something else
14349 and we don't end up returning here: UNARY_PLUS_EXPR,
14350 CONVERT_EXPR, {POST,PRE}{INCR,DECR}EMENT_EXPR. */
14351 TREE_OPERAND (node, 0) = fold (op);
14352 TREE_TYPE (node) = prom_type;
14353 TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (op);
14354 return fold (node);
14357 /* Generic type resolution that sometimes takes place during node
14358 patching. Returned the resolved type or generate an error
14359 message. Return the resolved type or NULL_TREE. */
14362 resolve_type_during_patch (type)
14365 if (unresolved_type_p (type, NULL))
14367 tree type_decl = resolve_and_layout (EXPR_WFL_NODE (type), type);
14370 parse_error_context (type,
14371 "Class `%s' not found in type declaration",
14372 IDENTIFIER_POINTER (EXPR_WFL_NODE (type)));
14375 return TREE_TYPE (type_decl);
14379 /* 5.5 Casting Conversion. error_mark_node is returned if an error is
14380 found. Otherwise NODE or something meant to replace it is returned. */
14383 patch_cast (node, wfl_op)
14387 tree op = TREE_OPERAND (node, 0);
14388 tree op_type = TREE_TYPE (op);
14389 tree cast_type = TREE_TYPE (node);
14392 /* First resolve OP_TYPE if unresolved */
14393 if (!(cast_type = resolve_type_during_patch (cast_type)))
14394 return error_mark_node;
14396 /* Check on cast that are proven correct at compile time */
14397 if (JNUMERIC_TYPE_P (cast_type) && JNUMERIC_TYPE_P (op_type))
14400 if (cast_type == op_type)
14403 /* float and double type are converted to the original type main
14404 variant and then to the target type. */
14405 if (JFLOAT_TYPE_P (op_type) && TREE_CODE (cast_type) == CHAR_TYPE)
14406 op = convert (integer_type_node, op);
14408 /* Try widening/narowwing convertion. Potentially, things need
14409 to be worked out in gcc so we implement the extreme cases
14410 correctly. fold_convert() needs to be fixed. */
14411 return convert (cast_type, op);
14414 /* It's also valid to cast a boolean into a boolean */
14415 if (op_type == boolean_type_node && cast_type == boolean_type_node)
14418 /* null can be casted to references */
14419 if (op == null_pointer_node && JREFERENCE_TYPE_P (cast_type))
14420 return build_null_of_type (cast_type);
14422 /* The remaining legal casts involve conversion between reference
14423 types. Check for their compile time correctness. */
14424 if (JREFERENCE_TYPE_P (op_type) && JREFERENCE_TYPE_P (cast_type)
14425 && valid_ref_assignconv_cast_p (op_type, cast_type, 1))
14427 TREE_TYPE (node) = promote_type (cast_type);
14428 /* Now, the case can be determined correct at compile time if
14429 OP_TYPE can be converted into CAST_TYPE by assignment
14430 conversion (5.2) */
14432 if (valid_ref_assignconv_cast_p (op_type, cast_type, 0))
14434 TREE_SET_CODE (node, NOP_EXPR);
14438 if (flag_emit_class_files)
14440 TREE_SET_CODE (node, CONVERT_EXPR);
14444 /* The cast requires a run-time check */
14445 return build (CALL_EXPR, promote_type (cast_type),
14446 build_address_of (soft_checkcast_node),
14447 tree_cons (NULL_TREE, build_class_ref (cast_type),
14448 build_tree_list (NULL_TREE, op)),
14452 /* Any other casts are proven incorrect at compile time */
14453 t1 = xstrdup (lang_printable_name (op_type, 0));
14454 parse_error_context (wfl_op, "Invalid cast from `%s' to `%s'",
14455 t1, lang_printable_name (cast_type, 0));
14457 return error_mark_node;
14460 /* Build a null constant and give it the type TYPE. */
14463 build_null_of_type (type)
14466 tree node = build_int_2 (0, 0);
14467 TREE_TYPE (node) = promote_type (type);
14471 /* Build an ARRAY_REF incomplete tree node. Note that operand 1 isn't
14472 a list of indices. */
14474 build_array_ref (location, array, index)
14478 tree node = build (ARRAY_REF, NULL_TREE, array, index);
14479 EXPR_WFL_LINECOL (node) = location;
14483 /* 15.12 Array Access Expression */
14486 patch_array_ref (node)
14489 tree array = TREE_OPERAND (node, 0);
14490 tree array_type = TREE_TYPE (array);
14491 tree index = TREE_OPERAND (node, 1);
14492 tree index_type = TREE_TYPE (index);
14493 int error_found = 0;
14495 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
14497 if (TREE_CODE (array_type) == POINTER_TYPE)
14498 array_type = TREE_TYPE (array_type);
14500 /* The array reference must be an array */
14501 if (!TYPE_ARRAY_P (array_type))
14503 parse_error_context
14505 "`[]' can only be applied to arrays. It can't be applied to `%s'",
14506 lang_printable_name (array_type, 0));
14507 TREE_TYPE (node) = error_mark_node;
14511 /* The array index undergoes unary numeric promotion. The promoted
14512 type must be int */
14513 index = do_unary_numeric_promotion (index);
14514 if (TREE_TYPE (index) != int_type_node)
14516 if (valid_cast_to_p (index_type, int_type_node))
14517 parse_error_context (wfl_operator,
14518 "Incompatible type for `[]'. Explicit cast needed to convert `%s' to `int'",
14519 lang_printable_name (index_type, 0));
14521 parse_error_context (wfl_operator,
14522 "Incompatible type for `[]'. Can't convert `%s' to `int'",
14523 lang_printable_name (index_type, 0));
14524 TREE_TYPE (node) = error_mark_node;
14529 return error_mark_node;
14531 array_type = TYPE_ARRAY_ELEMENT (array_type);
14533 if (flag_emit_class_files || flag_emit_xref)
14535 TREE_OPERAND (node, 0) = array;
14536 TREE_OPERAND (node, 1) = index;
14540 /* The save_expr is for correct evaluation order. It would be cleaner
14541 to use force_evaluation_order (see comment there), but that is
14542 difficult when we also have to deal with bounds checking. */
14543 if (TREE_SIDE_EFFECTS (index))
14544 array = save_expr (array);
14545 node = build_java_arrayaccess (array, array_type, index);
14546 if (TREE_SIDE_EFFECTS (index))
14547 node = build (COMPOUND_EXPR, array_type, array, node);
14549 TREE_TYPE (node) = array_type;
14553 /* 15.9 Array Creation Expressions */
14556 build_newarray_node (type, dims, extra_dims)
14562 build (NEW_ARRAY_EXPR, NULL_TREE, type, nreverse (dims),
14563 build_int_2 (extra_dims, 0));
14568 patch_newarray (node)
14571 tree type = TREE_OPERAND (node, 0);
14572 tree dims = TREE_OPERAND (node, 1);
14573 tree cdim, array_type;
14574 int error_found = 0;
14576 int xdims = TREE_INT_CST_LOW (TREE_OPERAND (node, 2));
14578 /* Dimension types are verified. It's better for the types to be
14579 verified in order. */
14580 for (cdim = dims, ndims = 0; cdim; cdim = TREE_CHAIN (cdim), ndims++ )
14583 tree dim = TREE_VALUE (cdim);
14585 /* Dim might have been saved during its evaluation */
14586 dim = (TREE_CODE (dim) == SAVE_EXPR ? TREE_OPERAND (dim, 0) : dim);
14588 /* The type of each specified dimension must be an integral type. */
14589 if (!JINTEGRAL_TYPE_P (TREE_TYPE (dim)))
14592 /* Each expression undergoes an unary numeric promotion (5.6.1) and the
14593 promoted type must be int. */
14596 dim = do_unary_numeric_promotion (dim);
14597 if (TREE_TYPE (dim) != int_type_node)
14601 /* Report errors on types here */
14604 parse_error_context
14605 (TREE_PURPOSE (cdim),
14606 "Incompatible type for dimension in array creation expression. %s convert `%s' to `int'",
14607 (valid_cast_to_p (TREE_TYPE (dim), int_type_node) ?
14608 "Explicit cast needed to" : "Can't"),
14609 lang_printable_name (TREE_TYPE (dim), 0));
14613 TREE_PURPOSE (cdim) = NULL_TREE;
14616 /* Resolve array base type if unresolved */
14617 if (!(type = resolve_type_during_patch (type)))
14622 /* We don't want further evaluation of this bogus array creation
14624 TREE_TYPE (node) = error_mark_node;
14625 return error_mark_node;
14628 /* Set array_type to the actual (promoted) array type of the result. */
14629 if (TREE_CODE (type) == RECORD_TYPE)
14630 type = build_pointer_type (type);
14631 while (--xdims >= 0)
14633 type = promote_type (build_java_array_type (type, -1));
14635 dims = nreverse (dims);
14637 for (cdim = dims; cdim; cdim = TREE_CHAIN (cdim))
14641 = build_java_array_type (type,
14642 TREE_CODE (cdim) == INTEGER_CST
14643 ? (HOST_WIDE_INT) TREE_INT_CST_LOW (cdim)
14645 array_type = promote_type (array_type);
14647 dims = nreverse (dims);
14649 /* The node is transformed into a function call. Things are done
14650 differently according to the number of dimensions. If the number
14651 of dimension is equal to 1, then the nature of the base type
14652 (primitive or not) matters. */
14654 return build_new_array (type, TREE_VALUE (dims));
14656 /* Can't reuse what's already written in expr.c because it uses the
14657 JVM stack representation. Provide a build_multianewarray. FIXME */
14658 return build (CALL_EXPR, array_type,
14659 build_address_of (soft_multianewarray_node),
14660 tree_cons (NULL_TREE, build_class_ref (TREE_TYPE (array_type)),
14661 tree_cons (NULL_TREE,
14662 build_int_2 (ndims, 0), dims )),
14666 /* 10.6 Array initializer. */
14668 /* Build a wfl for array element that don't have one, so we can
14669 pin-point errors. */
14672 maybe_build_array_element_wfl (node)
14675 if (TREE_CODE (node) != EXPR_WITH_FILE_LOCATION)
14676 return build_expr_wfl (NULL_TREE, ctxp->filename,
14677 ctxp->elc.line, ctxp->elc.prev_col);
14682 /* Build a NEW_ARRAY_INIT that features a CONSTRUCTOR node. This makes
14683 identification of initialized arrays easier to detect during walk
14687 build_new_array_init (location, values)
14691 tree constructor = build (CONSTRUCTOR, NULL_TREE, NULL_TREE, values);
14692 tree to_return = build1 (NEW_ARRAY_INIT, NULL_TREE, constructor);
14693 EXPR_WFL_LINECOL (to_return) = location;
14697 /* Expand a NEW_ARRAY_INIT node. Return error_mark_node if an error
14698 occurred. Otherwise return NODE after having set its type
14702 patch_new_array_init (type, node)
14705 int error_seen = 0;
14706 tree current, element_type;
14707 HOST_WIDE_INT length;
14708 int all_constant = 1;
14709 tree init = TREE_OPERAND (node, 0);
14711 if (TREE_CODE (type) != POINTER_TYPE || ! TYPE_ARRAY_P (TREE_TYPE (type)))
14713 parse_error_context (node,
14714 "Invalid array initializer for non-array type `%s'",
14715 lang_printable_name (type, 1));
14716 return error_mark_node;
14718 type = TREE_TYPE (type);
14719 element_type = TYPE_ARRAY_ELEMENT (type);
14721 CONSTRUCTOR_ELTS (init) = nreverse (CONSTRUCTOR_ELTS (init));
14723 for (length = 0, current = CONSTRUCTOR_ELTS (init);
14724 current; length++, current = TREE_CHAIN (current))
14726 tree elt = TREE_VALUE (current);
14727 if (elt == NULL_TREE || TREE_CODE (elt) != NEW_ARRAY_INIT)
14729 error_seen |= array_constructor_check_entry (element_type, current);
14730 elt = TREE_VALUE (current);
14731 /* When compiling to native code, STRING_CST is converted to
14732 INDIRECT_REF, but still with a TREE_CONSTANT flag. */
14733 if (! TREE_CONSTANT (elt) || TREE_CODE (elt) == INDIRECT_REF)
14738 TREE_VALUE (current) = patch_new_array_init (element_type, elt);
14739 TREE_PURPOSE (current) = NULL_TREE;
14742 if (elt && TREE_CODE (elt) == TREE_LIST
14743 && TREE_VALUE (elt) == error_mark_node)
14748 return error_mark_node;
14750 /* Create a new type. We can't reuse the one we have here by
14751 patching its dimension because it originally is of dimension -1
14752 hence reused by gcc. This would prevent triangular arrays. */
14753 type = build_java_array_type (element_type, length);
14754 TREE_TYPE (init) = TREE_TYPE (TREE_CHAIN (TREE_CHAIN (TYPE_FIELDS (type))));
14755 TREE_TYPE (node) = promote_type (type);
14756 TREE_CONSTANT (init) = all_constant;
14757 TREE_CONSTANT (node) = all_constant;
14761 /* Verify that one entry of the initializer element list can be
14762 assigned to the array base type. Report 1 if an error occurred, 0
14766 array_constructor_check_entry (type, entry)
14769 char *array_type_string = NULL; /* For error reports */
14770 tree value, type_value, new_value, wfl_value, patched;
14771 int error_seen = 0;
14773 new_value = NULL_TREE;
14774 wfl_value = TREE_VALUE (entry);
14776 value = java_complete_tree (TREE_VALUE (entry));
14777 /* patch_string return error_mark_node if arg is error_mark_node */
14778 if ((patched = patch_string (value)))
14780 if (value == error_mark_node)
14783 type_value = TREE_TYPE (value);
14785 /* At anytime, try_builtin_assignconv can report a warning on
14786 constant overflow during narrowing. */
14787 SET_WFL_OPERATOR (wfl_operator, TREE_PURPOSE (entry), wfl_value);
14788 new_value = try_builtin_assignconv (wfl_operator, type, value);
14789 if (!new_value && (new_value = try_reference_assignconv (type, value)))
14790 type_value = promote_type (type);
14792 /* Check and report errors */
14795 const char *msg = (!valid_cast_to_p (type_value, type) ?
14796 "Can't" : "Explicit cast needed to");
14797 if (!array_type_string)
14798 array_type_string = xstrdup (lang_printable_name (type, 1));
14799 parse_error_context
14800 (wfl_operator, "Incompatible type for array. %s convert `%s' to `%s'",
14801 msg, lang_printable_name (type_value, 1), array_type_string);
14807 new_value = maybe_build_primttype_type_ref (new_value, wfl_value);
14808 TREE_VALUE (entry) = new_value;
14811 if (array_type_string)
14812 free (array_type_string);
14814 TREE_PURPOSE (entry) = NULL_TREE;
14819 build_this (location)
14822 tree node = build_wfl_node (this_identifier_node);
14823 TREE_SET_CODE (node, THIS_EXPR);
14824 EXPR_WFL_LINECOL (node) = location;
14828 /* 14.15 The return statement. It builds a modify expression that
14829 assigns the returned value to the RESULT_DECL that hold the value
14833 build_return (location, op)
14837 tree node = build1 (RETURN_EXPR, NULL_TREE, op);
14838 EXPR_WFL_LINECOL (node) = location;
14839 node = build_debugable_stmt (location, node);
14844 patch_return (node)
14847 tree return_exp = TREE_OPERAND (node, 0);
14848 tree meth = current_function_decl;
14849 tree mtype = TREE_TYPE (TREE_TYPE (current_function_decl));
14850 int error_found = 0;
14852 TREE_TYPE (node) = error_mark_node;
14853 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
14855 /* It's invalid to have a return value within a function that is
14856 declared with the keyword void or that is a constructor */
14857 if (return_exp && (mtype == void_type_node || DECL_CONSTRUCTOR_P (meth)))
14860 /* It's invalid to use a return statement in a static block */
14861 if (DECL_CLINIT_P (current_function_decl))
14864 /* It's invalid to have a no return value within a function that
14865 isn't declared with the keyword `void' */
14866 if (!return_exp && (mtype != void_type_node && !DECL_CONSTRUCTOR_P (meth)))
14869 if (DECL_INSTINIT_P (current_function_decl))
14874 if (DECL_INSTINIT_P (current_function_decl))
14875 parse_error_context (wfl_operator,
14876 "`return' inside instance initializer");
14878 else if (DECL_CLINIT_P (current_function_decl))
14879 parse_error_context (wfl_operator,
14880 "`return' inside static initializer");
14882 else if (!DECL_CONSTRUCTOR_P (meth))
14884 char *t = xstrdup (lang_printable_name (mtype, 0));
14885 parse_error_context (wfl_operator,
14886 "`return' with%s value from `%s %s'",
14887 (error_found == 1 ? "" : "out"),
14888 t, lang_printable_name (meth, 0));
14892 parse_error_context (wfl_operator,
14893 "`return' with value from constructor `%s'",
14894 lang_printable_name (meth, 0));
14895 return error_mark_node;
14898 /* If we have a return_exp, build a modify expression and expand
14899 it. Note: at that point, the assignment is declared valid, but we
14900 may want to carry some more hacks */
14903 tree exp = java_complete_tree (return_exp);
14904 tree modify, patched;
14906 /* If the function returned value and EXP are booleans, EXP has
14907 to be converted into the type of DECL_RESULT, which is integer
14908 (see complete_start_java_method) */
14909 if (TREE_TYPE (exp) == boolean_type_node &&
14910 TREE_TYPE (TREE_TYPE (meth)) == boolean_type_node)
14911 exp = convert_to_integer (TREE_TYPE (DECL_RESULT (meth)), exp);
14913 /* `null' can be assigned to a function returning a reference */
14914 if (JREFERENCE_TYPE_P (TREE_TYPE (TREE_TYPE (meth))) &&
14915 exp == null_pointer_node)
14916 exp = build_null_of_type (TREE_TYPE (TREE_TYPE (meth)));
14918 if ((patched = patch_string (exp)))
14921 modify = build (MODIFY_EXPR, NULL_TREE, DECL_RESULT (meth), exp);
14922 EXPR_WFL_LINECOL (modify) = EXPR_WFL_LINECOL (node);
14923 modify = java_complete_tree (modify);
14925 if (modify != error_mark_node)
14927 TREE_SIDE_EFFECTS (modify) = 1;
14928 TREE_OPERAND (node, 0) = modify;
14931 return error_mark_node;
14933 TREE_TYPE (node) = void_type_node;
14934 TREE_SIDE_EFFECTS (node) = 1;
14938 /* 14.8 The if Statement */
14941 build_if_else_statement (location, expression, if_body, else_body)
14943 tree expression, if_body, else_body;
14947 else_body = empty_stmt_node;
14948 node = build (COND_EXPR, NULL_TREE, expression, if_body, else_body);
14949 EXPR_WFL_LINECOL (node) = location;
14950 node = build_debugable_stmt (location, node);
14955 patch_if_else_statement (node)
14958 tree expression = TREE_OPERAND (node, 0);
14960 TREE_TYPE (node) = error_mark_node;
14961 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
14963 /* The type of expression must be boolean */
14964 if (TREE_TYPE (expression) != boolean_type_node
14965 && TREE_TYPE (expression) != promoted_boolean_type_node)
14967 parse_error_context
14969 "Incompatible type for `if'. Can't convert `%s' to `boolean'",
14970 lang_printable_name (TREE_TYPE (expression), 0));
14971 return error_mark_node;
14974 TREE_TYPE (node) = void_type_node;
14975 TREE_SIDE_EFFECTS (node) = 1;
14976 CAN_COMPLETE_NORMALLY (node)
14977 = CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1))
14978 | CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 2));
14982 /* 14.6 Labeled Statements */
14984 /* Action taken when a lableled statement is parsed. a new
14985 LABELED_BLOCK_EXPR is created. No statement is attached to the
14986 label, yet. LABEL can be NULL_TREE for artificially-generated blocks. */
14989 build_labeled_block (location, label)
14994 tree label_decl, node;
14995 if (label == NULL_TREE || label == continue_identifier_node)
14996 label_name = label;
14999 label_name = merge_qualified_name (label_id, label);
15000 /* Issue an error if we try to reuse a label that was previously
15002 if (IDENTIFIER_LOCAL_VALUE (label_name))
15004 EXPR_WFL_LINECOL (wfl_operator) = location;
15005 parse_error_context (wfl_operator,
15006 "Declaration of `%s' shadows a previous label declaration",
15007 IDENTIFIER_POINTER (label));
15008 EXPR_WFL_LINECOL (wfl_operator) =
15009 EXPR_WFL_LINECOL (IDENTIFIER_LOCAL_VALUE (label_name));
15010 parse_error_context (wfl_operator,
15011 "This is the location of the previous declaration of label `%s'",
15012 IDENTIFIER_POINTER (label));
15013 java_error_count--;
15017 label_decl = create_label_decl (label_name);
15018 node = build (LABELED_BLOCK_EXPR, NULL_TREE, label_decl, NULL_TREE);
15019 EXPR_WFL_LINECOL (node) = location;
15020 TREE_SIDE_EFFECTS (node) = 1;
15024 /* A labeled statement LBE is attached a statement. */
15027 finish_labeled_statement (lbe, statement)
15028 tree lbe; /* Labeled block expr */
15031 /* In anyways, tie the loop to its statement */
15032 LABELED_BLOCK_BODY (lbe) = statement;
15033 pop_labeled_block ();
15034 POP_LABELED_BLOCK ();
15038 /* 14.10, 14.11, 14.12 Loop Statements */
15040 /* Create an empty LOOP_EXPR and make it the last in the nested loop
15044 build_new_loop (loop_body)
15047 tree loop = build (LOOP_EXPR, NULL_TREE, loop_body);
15048 TREE_SIDE_EFFECTS (loop) = 1;
15053 /* Create a loop body according to the following structure:
15055 COMPOUND_EXPR (loop main body)
15056 EXIT_EXPR (this order is for while/for loops.
15057 LABELED_BLOCK_EXPR the order is reversed for do loops)
15058 LABEL_DECL (a continue occuring here branches at the
15059 BODY end of this labeled block)
15062 REVERSED, if non zero, tells that the loop condition expr comes
15063 after the body, like in the do-while loop.
15065 To obtain a loop, the loop body structure described above is
15066 encapsulated within a LOOP_EXPR surrounded by a LABELED_BLOCK_EXPR:
15069 LABEL_DECL (use this label to exit the loop)
15071 <structure described above> */
15074 build_loop_body (location, condition, reversed)
15079 tree first, second, body;
15081 condition = build (EXIT_EXPR, NULL_TREE, condition); /* Force walk */
15082 EXPR_WFL_LINECOL (condition) = location; /* For accurate error report */
15083 condition = build_debugable_stmt (location, condition);
15084 TREE_SIDE_EFFECTS (condition) = 1;
15086 body = build_labeled_block (0, continue_identifier_node);
15087 first = (reversed ? body : condition);
15088 second = (reversed ? condition : body);
15090 build (COMPOUND_EXPR, NULL_TREE,
15091 build (COMPOUND_EXPR, NULL_TREE, first, second), empty_stmt_node);
15094 /* Install CONDITION (if any) and loop BODY (using REVERSED to tell
15095 their order) on the current loop. Unlink the current loop from the
15099 finish_loop_body (location, condition, body, reversed)
15101 tree condition, body;
15104 tree to_return = ctxp->current_loop;
15105 tree loop_body = LOOP_EXPR_BODY (to_return);
15108 tree cnode = LOOP_EXPR_BODY_CONDITION_EXPR (loop_body, reversed);
15109 /* We wrapped the EXIT_EXPR around a WFL so we can debug it.
15110 The real EXIT_EXPR is one operand further. */
15111 EXPR_WFL_LINECOL (cnode) = location;
15112 /* This one is for accurate error reports */
15113 EXPR_WFL_LINECOL (TREE_OPERAND (cnode, 0)) = location;
15114 TREE_OPERAND (TREE_OPERAND (cnode, 0), 0) = condition;
15116 LOOP_EXPR_BODY_BODY_EXPR (loop_body, reversed) = body;
15121 /* Tailored version of finish_loop_body for FOR loops, when FOR
15122 loops feature the condition part */
15125 finish_for_loop (location, condition, update, body)
15127 tree condition, update, body;
15129 /* Put the condition and the loop body in place */
15130 tree loop = finish_loop_body (location, condition, body, 0);
15131 /* LOOP is the current loop which has been now popped of the loop
15132 stack. Install the update block */
15133 LOOP_EXPR_BODY_UPDATE_BLOCK (LOOP_EXPR_BODY (loop)) = update;
15137 /* Try to find the loop a block might be related to. This comprises
15138 the case where the LOOP_EXPR is found as the second operand of a
15139 COMPOUND_EXPR, because the loop happens to have an initialization
15140 part, then expressed as the first operand of the COMPOUND_EXPR. If
15141 the search finds something, 1 is returned. Otherwise, 0 is
15142 returned. The search is assumed to start from a
15143 LABELED_BLOCK_EXPR's block. */
15146 search_loop (statement)
15149 if (TREE_CODE (statement) == LOOP_EXPR)
15152 if (TREE_CODE (statement) == BLOCK)
15153 statement = BLOCK_SUBBLOCKS (statement);
15157 if (statement && TREE_CODE (statement) == COMPOUND_EXPR)
15158 while (statement && TREE_CODE (statement) == COMPOUND_EXPR)
15159 statement = TREE_OPERAND (statement, 1);
15161 return (TREE_CODE (statement) == LOOP_EXPR
15162 && FOR_LOOP_P (statement) ? statement : NULL_TREE);
15165 /* Return 1 if LOOP can be found in the labeled block BLOCK. 0 is
15166 returned otherwise. */
15169 labeled_block_contains_loop_p (block, loop)
15175 if (LABELED_BLOCK_BODY (block) == loop)
15178 if (FOR_LOOP_P (loop) && search_loop (LABELED_BLOCK_BODY (block)) == loop)
15184 /* If the loop isn't surrounded by a labeled statement, create one and
15185 insert LOOP as its body. */
15188 patch_loop_statement (loop)
15193 TREE_TYPE (loop) = void_type_node;
15194 if (labeled_block_contains_loop_p (ctxp->current_labeled_block, loop))
15197 loop_label = build_labeled_block (0, NULL_TREE);
15198 /* LOOP is an EXPR node, so it should have a valid EXPR_WFL_LINECOL
15199 that LOOP_LABEL could enquire about, for a better accuracy. FIXME */
15200 LABELED_BLOCK_BODY (loop_label) = loop;
15201 PUSH_LABELED_BLOCK (loop_label);
15205 /* 14.13, 14.14: break and continue Statements */
15207 /* Build a break or a continue statement. a null NAME indicates an
15208 unlabeled break/continue statement. */
15211 build_bc_statement (location, is_break, name)
15212 int location, is_break;
15215 tree break_continue, label_block_expr = NULL_TREE;
15219 if (!(label_block_expr = IDENTIFIER_LOCAL_VALUE
15220 (merge_qualified_name (label_id, EXPR_WFL_NODE (name)))))
15221 /* Null means that we don't have a target for this named
15222 break/continue. In this case, we make the target to be the
15223 label name, so that the error can be reported accuratly in
15224 patch_bc_statement. */
15225 label_block_expr = EXPR_WFL_NODE (name);
15227 /* Unlabeled break/continue will be handled during the
15228 break/continue patch operation */
15230 = build (EXIT_BLOCK_EXPR, NULL_TREE, label_block_expr, NULL_TREE);
15232 IS_BREAK_STMT_P (break_continue) = is_break;
15233 TREE_SIDE_EFFECTS (break_continue) = 1;
15234 EXPR_WFL_LINECOL (break_continue) = location;
15235 break_continue = build_debugable_stmt (location, break_continue);
15236 return break_continue;
15239 /* Verification of a break/continue statement. */
15242 patch_bc_statement (node)
15245 tree bc_label = EXIT_BLOCK_LABELED_BLOCK (node), target_stmt;
15246 tree labeled_block = ctxp->current_labeled_block;
15247 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
15249 /* Having an identifier here means that the target is unknown. */
15250 if (bc_label != NULL_TREE && TREE_CODE (bc_label) == IDENTIFIER_NODE)
15252 parse_error_context (wfl_operator, "No label definition found for `%s'",
15253 IDENTIFIER_POINTER (bc_label));
15254 return error_mark_node;
15256 if (! IS_BREAK_STMT_P (node))
15258 /* It's a continue statement. */
15259 for (;; labeled_block = TREE_CHAIN (labeled_block))
15261 if (labeled_block == NULL_TREE)
15263 if (bc_label == NULL_TREE)
15264 parse_error_context (wfl_operator,
15265 "`continue' must be in loop");
15267 parse_error_context
15268 (wfl_operator, "continue label `%s' does not name a loop",
15269 IDENTIFIER_POINTER (bc_label));
15270 return error_mark_node;
15272 if ((DECL_NAME (LABELED_BLOCK_LABEL (labeled_block))
15273 == continue_identifier_node)
15274 && (bc_label == NULL_TREE
15275 || TREE_CHAIN (labeled_block) == bc_label))
15277 bc_label = labeled_block;
15282 else if (!bc_label)
15284 for (;; labeled_block = TREE_CHAIN (labeled_block))
15286 if (labeled_block == NULL_TREE)
15288 parse_error_context (wfl_operator,
15289 "`break' must be in loop or switch");
15290 return error_mark_node;
15292 target_stmt = LABELED_BLOCK_BODY (labeled_block);
15293 if (TREE_CODE (target_stmt) == SWITCH_EXPR
15294 || search_loop (target_stmt))
15296 bc_label = labeled_block;
15302 EXIT_BLOCK_LABELED_BLOCK (node) = bc_label;
15303 CAN_COMPLETE_NORMALLY (bc_label) = 1;
15305 /* Our break/continue don't return values. */
15306 TREE_TYPE (node) = void_type_node;
15307 /* Encapsulate the break within a compound statement so that it's
15308 expanded all the times by expand_expr (and not clobbered
15309 sometimes, like after a if statement) */
15310 node = add_stmt_to_compound (NULL_TREE, void_type_node, node);
15311 TREE_SIDE_EFFECTS (node) = 1;
15315 /* Process the exit expression belonging to a loop. Its type must be
15319 patch_exit_expr (node)
15322 tree expression = TREE_OPERAND (node, 0);
15323 TREE_TYPE (node) = error_mark_node;
15324 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
15326 /* The type of expression must be boolean */
15327 if (TREE_TYPE (expression) != boolean_type_node)
15329 parse_error_context
15331 "Incompatible type for loop conditional. Can't convert `%s' to `boolean'",
15332 lang_printable_name (TREE_TYPE (expression), 0));
15333 return error_mark_node;
15335 /* Now we know things are allright, invert the condition, fold and
15337 TREE_OPERAND (node, 0) =
15338 fold (build1 (TRUTH_NOT_EXPR, boolean_type_node, expression));
15340 if (! integer_zerop (TREE_OPERAND (node, 0))
15341 && ctxp->current_loop != NULL_TREE
15342 && TREE_CODE (ctxp->current_loop) == LOOP_EXPR)
15343 CAN_COMPLETE_NORMALLY (ctxp->current_loop) = 1;
15344 if (! integer_onep (TREE_OPERAND (node, 0)))
15345 CAN_COMPLETE_NORMALLY (node) = 1;
15348 TREE_TYPE (node) = void_type_node;
15352 /* 14.9 Switch statement */
15355 patch_switch_statement (node)
15358 tree se = TREE_OPERAND (node, 0), se_type;
15360 /* Complete the switch expression */
15361 se = TREE_OPERAND (node, 0) = java_complete_tree (se);
15362 se_type = TREE_TYPE (se);
15363 /* The type of the switch expression must be char, byte, short or
15365 if (! JINTEGRAL_TYPE_P (se_type) || se_type == long_type_node)
15367 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node);
15368 parse_error_context (wfl_operator,
15369 "Incompatible type for `switch'. Can't convert `%s' to `int'",
15370 lang_printable_name (se_type, 0));
15371 /* This is what java_complete_tree will check */
15372 TREE_OPERAND (node, 0) = error_mark_node;
15373 return error_mark_node;
15376 TREE_OPERAND (node, 1) = java_complete_tree (TREE_OPERAND (node, 1));
15378 /* Ready to return */
15379 if (TREE_CODE (TREE_OPERAND (node, 1)) == ERROR_MARK)
15381 TREE_TYPE (node) = error_mark_node;
15382 return error_mark_node;
15384 TREE_TYPE (node) = void_type_node;
15385 TREE_SIDE_EFFECTS (node) = 1;
15386 CAN_COMPLETE_NORMALLY (node)
15387 = CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1))
15388 || ! SWITCH_HAS_DEFAULT (node);
15392 /* 14.18 The try/catch statements */
15394 /* Encapsulate TRY_STMTS' in a try catch sequence. The catch clause
15395 catches TYPE and executes CATCH_STMTS. */
15398 encapsulate_with_try_catch (location, type, try_stmts, catch_stmts)
15400 tree type, try_stmts, catch_stmts;
15402 tree try_block, catch_clause_param, catch_block, catch;
15404 /* First build a try block */
15405 try_block = build_expr_block (try_stmts, NULL_TREE);
15407 /* Build a catch block: we need a catch clause parameter */
15408 catch_clause_param = build_decl (VAR_DECL,
15409 wpv_id, build_pointer_type (type));
15411 catch_block = build_expr_block (NULL_TREE, catch_clause_param);
15413 /* Initialize the variable and store in the block */
15414 catch = build (MODIFY_EXPR, NULL_TREE, catch_clause_param,
15415 build (JAVA_EXC_OBJ_EXPR, ptr_type_node));
15416 add_stmt_to_block (catch_block, NULL_TREE, catch);
15418 /* Add the catch statements */
15419 add_stmt_to_block (catch_block, NULL_TREE, catch_stmts);
15421 /* Now we can build a CATCH_EXPR */
15422 catch_block = build1 (CATCH_EXPR, NULL_TREE, catch_block);
15424 return build_try_statement (location, try_block, catch_block);
15428 build_try_statement (location, try_block, catches)
15430 tree try_block, catches;
15432 tree node = build (TRY_EXPR, NULL_TREE, try_block, catches);
15433 EXPR_WFL_LINECOL (node) = location;
15438 build_try_finally_statement (location, try_block, finally)
15440 tree try_block, finally;
15442 tree node = build (TRY_FINALLY_EXPR, NULL_TREE, try_block, finally);
15443 EXPR_WFL_LINECOL (node) = location;
15448 patch_try_statement (node)
15451 int error_found = 0;
15452 tree try = TREE_OPERAND (node, 0);
15453 /* Exception handlers are considered in left to right order */
15454 tree catch = nreverse (TREE_OPERAND (node, 1));
15455 tree current, caught_type_list = NULL_TREE;
15457 /* Check catch clauses, if any. Every time we find an error, we try
15458 to process the next catch clause. We process the catch clause before
15459 the try block so that when processing the try block we can check thrown
15460 exceptions againts the caught type list. */
15461 for (current = catch; current; current = TREE_CHAIN (current))
15463 tree carg_decl, carg_type;
15464 tree sub_current, catch_block, catch_clause;
15467 /* At this point, the structure of the catch clause is
15468 CATCH_EXPR (catch node)
15469 BLOCK (with the decl of the parameter)
15471 MODIFY_EXPR (assignment of the catch parameter)
15472 BLOCK (catch clause block)
15474 catch_clause = TREE_OPERAND (current, 0);
15475 carg_decl = BLOCK_EXPR_DECLS (catch_clause);
15476 carg_type = TREE_TYPE (TREE_TYPE (carg_decl));
15478 /* Catch clauses can't have more than one parameter declared,
15479 but it's already enforced by the grammar. Make sure that the
15480 only parameter of the clause statement in of class Throwable
15481 or a subclass of Throwable, but that was done earlier. The
15482 catch clause parameter type has also been resolved. */
15484 /* Just make sure that the catch clause parameter type inherits
15485 from java.lang.Throwable */
15486 if (!inherits_from_p (carg_type, throwable_type_node))
15488 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (current);
15489 parse_error_context (wfl_operator,
15490 "Can't catch class `%s'. Catch clause parameter type must be a subclass of class `java.lang.Throwable'",
15491 lang_printable_name (carg_type, 0));
15496 /* Partial check for unreachable catch statement: The catch
15497 clause is reachable iff is no earlier catch block A in
15498 the try statement such that the type of the catch
15499 clause's parameter is the same as or a subclass of the
15500 type of A's parameter */
15502 for (sub_current = catch;
15503 sub_current != current; sub_current = TREE_CHAIN (sub_current))
15505 tree sub_catch_clause, decl;
15506 sub_catch_clause = TREE_OPERAND (sub_current, 0);
15507 decl = BLOCK_EXPR_DECLS (sub_catch_clause);
15509 if (inherits_from_p (carg_type, TREE_TYPE (TREE_TYPE (decl))))
15511 EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (current);
15512 parse_error_context
15514 "`catch' not reached because of the catch clause at line %d",
15515 EXPR_WFL_LINENO (sub_current));
15516 unreachable = error_found = 1;
15520 /* Complete the catch clause block */
15521 catch_block = java_complete_tree (TREE_OPERAND (current, 0));
15522 if (catch_block == error_mark_node)
15527 if (CAN_COMPLETE_NORMALLY (catch_block))
15528 CAN_COMPLETE_NORMALLY (node) = 1;
15529 TREE_OPERAND (current, 0) = catch_block;
15534 /* Things to do here: the exception must be thrown */
15536 /* Link this type to the caught type list */
15537 caught_type_list = tree_cons (NULL_TREE, carg_type, caught_type_list);
15540 PUSH_EXCEPTIONS (caught_type_list);
15541 if ((try = java_complete_tree (try)) == error_mark_node)
15543 if (CAN_COMPLETE_NORMALLY (try))
15544 CAN_COMPLETE_NORMALLY (node) = 1;
15547 /* Verification ends here */
15549 return error_mark_node;
15551 TREE_OPERAND (node, 0) = try;
15552 TREE_OPERAND (node, 1) = catch;
15553 TREE_TYPE (node) = void_type_node;
15557 /* 14.17 The synchronized Statement */
15560 patch_synchronized_statement (node, wfl_op1)
15561 tree node, wfl_op1;
15563 tree expr = java_complete_tree (TREE_OPERAND (node, 0));
15564 tree block = TREE_OPERAND (node, 1);
15566 tree tmp, enter, exit, expr_decl, assignment;
15568 if (expr == error_mark_node)
15570 block = java_complete_tree (block);
15574 /* We might be trying to synchronize on a STRING_CST */
15575 if ((tmp = patch_string (expr)))
15578 /* The TYPE of expr must be a reference type */
15579 if (!JREFERENCE_TYPE_P (TREE_TYPE (expr)))
15581 SET_WFL_OPERATOR (wfl_operator, node, wfl_op1);
15582 parse_error_context (wfl_operator, "Incompatible type for `synchronized'. Can't convert `%s' to `java.lang.Object'",
15583 lang_printable_name (TREE_TYPE (expr), 0));
15584 return error_mark_node;
15587 if (flag_emit_xref)
15589 TREE_OPERAND (node, 0) = expr;
15590 TREE_OPERAND (node, 1) = java_complete_tree (block);
15591 CAN_COMPLETE_NORMALLY (node) = 1;
15595 /* Generate a try-finally for the synchronized statement, except
15596 that the handler that catches all throw exception calls
15597 _Jv_MonitorExit and then rethrow the exception.
15598 The synchronized statement is then implemented as:
15601 _Jv_MonitorEnter (expression)
15603 _Jv_MonitorExit (expression)
15607 e = _Jv_exception_info ();
15608 _Jv_MonitorExit (expression)
15612 expr_decl = build_decl (VAR_DECL, generate_name (), TREE_TYPE (expr));
15613 BUILD_MONITOR_ENTER (enter, expr_decl);
15614 BUILD_MONITOR_EXIT (exit, expr_decl);
15615 CAN_COMPLETE_NORMALLY (enter) = 1;
15616 CAN_COMPLETE_NORMALLY (exit) = 1;
15617 assignment = build (MODIFY_EXPR, NULL_TREE, expr_decl, expr);
15618 TREE_SIDE_EFFECTS (assignment) = 1;
15619 node = build1 (CLEANUP_POINT_EXPR, NULL_TREE,
15620 build (COMPOUND_EXPR, NULL_TREE,
15621 build (WITH_CLEANUP_EXPR, NULL_TREE,
15622 build (COMPOUND_EXPR, NULL_TREE,
15623 assignment, enter),
15626 node = build_expr_block (node, expr_decl);
15628 return java_complete_tree (node);
15631 /* 14.16 The throw Statement */
15634 patch_throw_statement (node, wfl_op1)
15635 tree node, wfl_op1;
15637 tree expr = TREE_OPERAND (node, 0);
15638 tree type = TREE_TYPE (expr);
15639 int unchecked_ok = 0, tryblock_throws_ok = 0;
15641 /* Thrown expression must be assignable to java.lang.Throwable */
15642 if (!try_reference_assignconv (throwable_type_node, expr))
15644 SET_WFL_OPERATOR (wfl_operator, node, wfl_op1);
15645 parse_error_context (wfl_operator,
15646 "Can't throw `%s'; it must be a subclass of class `java.lang.Throwable'",
15647 lang_printable_name (type, 0));
15648 /* If the thrown expression was a reference, we further the
15649 compile-time check. */
15650 if (!JREFERENCE_TYPE_P (type))
15651 return error_mark_node;
15654 /* At least one of the following must be true */
15656 /* The type of the throw expression is a not checked exception,
15657 i.e. is a unchecked expression. */
15658 unchecked_ok = IS_UNCHECKED_EXCEPTION_P (TREE_TYPE (type));
15660 SET_WFL_OPERATOR (wfl_operator, node, wfl_op1);
15661 /* An instance can't throw a checked exception unless that exception
15662 is explicitely declared in the `throws' clause of each
15663 constructor. This doesn't apply to anonymous classes, since they
15664 don't have declared constructors. */
15666 && DECL_INSTINIT_P (current_function_decl)
15667 && !ANONYMOUS_CLASS_P (current_class))
15670 for (current = TYPE_METHODS (current_class); current;
15671 current = TREE_CHAIN (current))
15672 if (DECL_CONSTRUCTOR_P (current)
15673 && !check_thrown_exceptions_do (TREE_TYPE (expr)))
15675 parse_error_context (wfl_operator, "Checked exception `%s' can't be thrown in instance initializer (not all declared constructor are declaring it in their `throws' clause)",
15676 lang_printable_name (TREE_TYPE (expr), 0));
15677 return error_mark_node;
15681 /* Throw is contained in a try statement and at least one catch
15682 clause can receive the thrown expression or the current method is
15683 declared to throw such an exception. Or, the throw statement is
15684 contained in a method or constructor declaration and the type of
15685 the Expression is assignable to at least one type listed in the
15686 throws clause the declaration. */
15688 tryblock_throws_ok = check_thrown_exceptions_do (TREE_TYPE (expr));
15689 if (!(unchecked_ok || tryblock_throws_ok))
15691 /* If there is a surrounding try block that has no matching
15692 clatch clause, report it first. A surrounding try block exits
15693 only if there is something after the list of checked
15694 exception thrown by the current function (if any). */
15695 if (IN_TRY_BLOCK_P ())
15696 parse_error_context (wfl_operator, "Checked exception `%s' can't be caught by any of the catch clause(s) of the surrounding `try' block",
15697 lang_printable_name (type, 0));
15698 /* If we have no surrounding try statement and the method doesn't have
15699 any throws, report it now. FIXME */
15701 /* We report that the exception can't be throw from a try block
15702 in all circumstances but when the `throw' is inside a static
15704 else if (!EXCEPTIONS_P (currently_caught_type_list)
15705 && !tryblock_throws_ok)
15707 if (DECL_CLINIT_P (current_function_decl))
15708 parse_error_context (wfl_operator,
15709 "Checked exception `%s' can't be thrown in initializer",
15710 lang_printable_name (type, 0));
15712 parse_error_context (wfl_operator,
15713 "Checked exception `%s' isn't thrown from a `try' block",
15714 lang_printable_name (type, 0));
15716 /* Otherwise, the current method doesn't have the appropriate
15717 throws declaration */
15719 parse_error_context (wfl_operator, "Checked exception `%s' doesn't match any of current method's `throws' declaration(s)",
15720 lang_printable_name (type, 0));
15721 return error_mark_node;
15724 if (! flag_emit_class_files && ! flag_emit_xref)
15725 BUILD_THROW (node, expr);
15727 /* If doing xrefs, keep the location where the `throw' was seen. */
15728 if (flag_emit_xref)
15729 EXPR_WFL_LINECOL (node) = EXPR_WFL_LINECOL (wfl_op1);
15733 /* Check that exception said to be thrown by method DECL can be
15734 effectively caught from where DECL is invoked. */
15737 check_thrown_exceptions (location, decl)
15742 /* For all the unchecked exceptions thrown by DECL */
15743 for (throws = DECL_FUNCTION_THROWS (decl); throws;
15744 throws = TREE_CHAIN (throws))
15745 if (!check_thrown_exceptions_do (TREE_VALUE (throws)))
15748 /* Temporary hack to suppresses errors about cloning arrays. FIXME */
15749 if (DECL_NAME (decl) == get_identifier ("clone"))
15752 EXPR_WFL_LINECOL (wfl_operator) = location;
15753 if (DECL_FINIT_P (current_function_decl))
15754 parse_error_context
15755 (wfl_operator, "Exception `%s' can't be thrown in initializer",
15756 lang_printable_name (TREE_VALUE (throws), 0));
15759 parse_error_context
15760 (wfl_operator, "Exception `%s' must be caught, or it must be declared in the `throws' clause of `%s'",
15761 lang_printable_name (TREE_VALUE (throws), 0),
15762 (DECL_INIT_P (current_function_decl) ?
15763 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class))) :
15764 IDENTIFIER_POINTER (DECL_NAME (current_function_decl))));
15769 /* Return 1 if checked EXCEPTION is caught at the current nesting level of
15770 try-catch blocks, OR is listed in the `throws' clause of the
15774 check_thrown_exceptions_do (exception)
15777 tree list = currently_caught_type_list;
15778 resolve_and_layout (exception, NULL_TREE);
15779 /* First, all the nested try-catch-finally at that stage. The
15780 last element contains `throws' clause exceptions, if any. */
15781 if (IS_UNCHECKED_EXCEPTION_P (exception))
15786 for (caught = TREE_VALUE (list); caught; caught = TREE_CHAIN (caught))
15787 if (valid_ref_assignconv_cast_p (exception, TREE_VALUE (caught), 0))
15789 list = TREE_CHAIN (list);
15795 purge_unchecked_exceptions (mdecl)
15798 tree throws = DECL_FUNCTION_THROWS (mdecl);
15799 tree new = NULL_TREE;
15803 tree next = TREE_CHAIN (throws);
15804 if (!IS_UNCHECKED_EXCEPTION_P (TREE_VALUE (throws)))
15806 TREE_CHAIN (throws) = new;
15811 /* List is inverted here, but it doesn't matter */
15812 DECL_FUNCTION_THROWS (mdecl) = new;
15815 /* This function goes over all of CLASS_TYPE ctors and checks whether
15816 each of them features at least one unchecked exception in its
15817 `throws' clause. If it's the case, it returns `true', `false'
15821 ctors_unchecked_throws_clause_p (class_type)
15826 for (current = TYPE_METHODS (class_type); current;
15827 current = TREE_CHAIN (current))
15829 bool ctu = false; /* Ctor Throws Unchecked */
15830 if (DECL_CONSTRUCTOR_P (current))
15833 for (throws = DECL_FUNCTION_THROWS (current); throws && !ctu;
15834 throws = TREE_CHAIN (throws))
15835 if (inherits_from_p (TREE_VALUE (throws), exception_type_node))
15838 /* We return false as we found one ctor that is unfit. */
15839 if (!ctu && DECL_CONSTRUCTOR_P (current))
15842 /* All ctors feature at least one unchecked exception in their
15843 `throws' clause. */
15847 /* 15.24 Conditional Operator ?: */
15850 patch_conditional_expr (node, wfl_cond, wfl_op1)
15851 tree node, wfl_cond, wfl_op1;
15853 tree cond = TREE_OPERAND (node, 0);
15854 tree op1 = TREE_OPERAND (node, 1);
15855 tree op2 = TREE_OPERAND (node, 2);
15856 tree resulting_type = NULL_TREE;
15857 tree t1, t2, patched;
15858 int error_found = 0;
15860 /* Operands of ?: might be StringBuffers crafted as a result of a
15861 string concatenation. Obtain a descent operand here. */
15862 if ((patched = patch_string (op1)))
15863 TREE_OPERAND (node, 1) = op1 = patched;
15864 if ((patched = patch_string (op2)))
15865 TREE_OPERAND (node, 2) = op2 = patched;
15867 t1 = TREE_TYPE (op1);
15868 t2 = TREE_TYPE (op2);
15870 /* The first expression must be a boolean */
15871 if (TREE_TYPE (cond) != boolean_type_node)
15873 SET_WFL_OPERATOR (wfl_operator, node, wfl_cond);
15874 parse_error_context (wfl_operator,
15875 "Incompatible type for `?:'. Can't convert `%s' to `boolean'",
15876 lang_printable_name (TREE_TYPE (cond), 0));
15880 /* Second and third can be numeric, boolean (i.e. primitive),
15881 references or null. Anything else results in an error */
15882 if (!((JNUMERIC_TYPE_P (t1) && JNUMERIC_TYPE_P (t2))
15883 || ((JREFERENCE_TYPE_P (t1) || op1 == null_pointer_node)
15884 && (JREFERENCE_TYPE_P (t2) || op2 == null_pointer_node))
15885 || (t1 == boolean_type_node && t2 == boolean_type_node)))
15888 /* Determine the type of the conditional expression. Same types are
15889 easy to deal with */
15891 resulting_type = t1;
15893 /* There are different rules for numeric types */
15894 else if (JNUMERIC_TYPE_P (t1))
15896 /* if byte/short found, the resulting type is short */
15897 if ((t1 == byte_type_node && t2 == short_type_node)
15898 || (t1 == short_type_node && t2 == byte_type_node))
15899 resulting_type = short_type_node;
15901 /* If t1 is a constant int and t2 is of type byte, short or char
15902 and t1's value fits in t2, then the resulting type is t2 */
15903 else if ((t1 == int_type_node && TREE_CONSTANT (TREE_OPERAND (node, 1)))
15904 && JBSC_TYPE_P (t2) && int_fits_type_p (TREE_OPERAND (node, 1), t2))
15905 resulting_type = t2;
15907 /* If t2 is a constant int and t1 is of type byte, short or char
15908 and t2's value fits in t1, then the resulting type is t1 */
15909 else if ((t2 == int_type_node && TREE_CONSTANT (TREE_OPERAND (node, 2)))
15910 && JBSC_TYPE_P (t1) && int_fits_type_p (TREE_OPERAND (node, 2), t1))
15911 resulting_type = t1;
15913 /* Otherwise, binary numeric promotion is applied and the
15914 resulting type is the promoted type of operand 1 and 2 */
15916 resulting_type = binary_numeric_promotion (t1, t2,
15917 &TREE_OPERAND (node, 1),
15918 &TREE_OPERAND (node, 2));
15921 /* Cases of a reference and a null type */
15922 else if (JREFERENCE_TYPE_P (t1) && op2 == null_pointer_node)
15923 resulting_type = t1;
15925 else if (JREFERENCE_TYPE_P (t2) && op1 == null_pointer_node)
15926 resulting_type = t2;
15928 /* Last case: different reference types. If a type can be converted
15929 into the other one by assignment conversion, the latter
15930 determines the type of the expression */
15931 else if ((resulting_type = try_reference_assignconv (t1, op2)))
15932 resulting_type = promote_type (t1);
15934 else if ((resulting_type = try_reference_assignconv (t2, op1)))
15935 resulting_type = promote_type (t2);
15937 /* If we don't have any resulting type, we're in trouble */
15938 if (!resulting_type)
15940 char *t = xstrdup (lang_printable_name (t1, 0));
15941 SET_WFL_OPERATOR (wfl_operator, node, wfl_op1);
15942 parse_error_context (wfl_operator,
15943 "Incompatible type for `?:'. Can't convert `%s' to `%s'",
15944 t, lang_printable_name (t2, 0));
15951 TREE_TYPE (node) = error_mark_node;
15952 return error_mark_node;
15955 TREE_TYPE (node) = resulting_type;
15956 TREE_SET_CODE (node, COND_EXPR);
15957 CAN_COMPLETE_NORMALLY (node) = 1;
15961 /* Wrap EXPR with code to initialize DECL's class, if appropriate. */
15964 maybe_build_class_init_for_field (decl, expr)
15967 tree clas = DECL_CONTEXT (decl);
15968 if (flag_emit_class_files || flag_emit_xref)
15971 if (TREE_CODE (decl) == VAR_DECL && FIELD_STATIC (decl)
15972 && FIELD_FINAL (decl))
15974 tree init = DECL_INITIAL (decl);
15975 if (init != NULL_TREE)
15976 init = fold_constant_for_init (init, decl);
15977 if (init != NULL_TREE && CONSTANT_VALUE_P (init))
15981 return build_class_init (clas, expr);
15984 /* Try to constant fold NODE.
15985 If NODE is not a constant expression, return NULL_EXPR.
15986 CONTEXT is a static final VAR_DECL whose initializer we are folding. */
15989 fold_constant_for_init (node, context)
15993 tree op0, op1, val;
15994 enum tree_code code = TREE_CODE (node);
16006 case TRUNC_MOD_EXPR:
16014 case TRUTH_ANDIF_EXPR:
16015 case TRUTH_ORIF_EXPR:
16022 op0 = TREE_OPERAND (node, 0);
16023 op1 = TREE_OPERAND (node, 1);
16024 val = fold_constant_for_init (op0, context);
16025 if (val == NULL_TREE || ! TREE_CONSTANT (val))
16027 TREE_OPERAND (node, 0) = val;
16028 val = fold_constant_for_init (op1, context);
16029 if (val == NULL_TREE || ! TREE_CONSTANT (val))
16031 TREE_OPERAND (node, 1) = val;
16032 return patch_binop (node, op0, op1);
16034 case UNARY_PLUS_EXPR:
16036 case TRUTH_NOT_EXPR:
16039 op0 = TREE_OPERAND (node, 0);
16040 val = fold_constant_for_init (op0, context);
16041 if (val == NULL_TREE || ! TREE_CONSTANT (val))
16043 TREE_OPERAND (node, 0) = val;
16044 return patch_unaryop (node, op0);
16048 val = fold_constant_for_init (TREE_OPERAND (node, 0), context);
16049 if (val == NULL_TREE || ! TREE_CONSTANT (val))
16051 TREE_OPERAND (node, 0) = val;
16052 val = fold_constant_for_init (TREE_OPERAND (node, 1), context);
16053 if (val == NULL_TREE || ! TREE_CONSTANT (val))
16055 TREE_OPERAND (node, 1) = val;
16056 val = fold_constant_for_init (TREE_OPERAND (node, 2), context);
16057 if (val == NULL_TREE || ! TREE_CONSTANT (val))
16059 TREE_OPERAND (node, 2) = val;
16060 return integer_zerop (TREE_OPERAND (node, 0)) ? TREE_OPERAND (node, 1)
16061 : TREE_OPERAND (node, 2);
16065 if (! FIELD_FINAL (node)
16066 || DECL_INITIAL (node) == NULL_TREE)
16068 val = DECL_INITIAL (node);
16069 /* Guard against infinite recursion. */
16070 DECL_INITIAL (node) = NULL_TREE;
16071 val = fold_constant_for_init (val, node);
16072 DECL_INITIAL (node) = val;
16073 if (!val && CLASS_FINAL_VARIABLE_P (node))
16074 DECL_FIELD_FINAL_IUD (node) = 0;
16077 case EXPR_WITH_FILE_LOCATION:
16078 /* Compare java_complete_tree and resolve_expression_name. */
16079 if (!EXPR_WFL_NODE (node) /* Or a PRIMARY flag ? */
16080 || TREE_CODE (EXPR_WFL_NODE (node)) == IDENTIFIER_NODE)
16082 tree name = EXPR_WFL_NODE (node);
16084 if (PRIMARY_P (node))
16086 else if (! QUALIFIED_P (name))
16088 decl = lookup_field_wrapper (DECL_CONTEXT (context), name);
16089 if (decl == NULL_TREE
16090 || (! FIELD_STATIC (decl) && ! FIELD_FINAL (decl)))
16092 return fold_constant_for_init (decl, decl);
16096 /* Wait until the USE_COMPONENT_REF re-write. FIXME. */
16097 qualify_ambiguous_name (node);
16098 if (resolve_field_access (node, &decl, NULL)
16099 && decl != NULL_TREE)
16100 return fold_constant_for_init (decl, decl);
16106 op0 = TREE_OPERAND (node, 0);
16107 val = fold_constant_for_init (op0, context);
16108 if (val == NULL_TREE || ! TREE_CONSTANT (val))
16110 TREE_OPERAND (node, 0) = val;
16114 #ifdef USE_COMPONENT_REF
16116 case COMPONENT_REF:
16125 #ifdef USE_COMPONENT_REF
16126 /* Context is 'T' for TypeName, 'P' for PackageName,
16127 'M' for MethodName, 'E' for ExpressionName, and 'A' for AmbiguousName. */
16130 resolve_simple_name (name, context)
16137 resolve_qualified_name (name, context)
16144 /* Mark P, which is really a `struct parser_ctxt **' for GC. */
16147 mark_parser_ctxt (p)
16150 struct parser_ctxt *pc = *((struct parser_ctxt **) p);
16157 for (i = 0; i < 11; ++i)
16158 ggc_mark_tree (pc->modifier_ctx[i]);
16159 ggc_mark_tree (pc->class_type);
16160 ggc_mark_tree (pc->function_decl);
16161 ggc_mark_tree (pc->package);
16162 ggc_mark_tree (pc->class_list);
16163 ggc_mark_tree (pc->current_parsed_class);
16164 ggc_mark_tree (pc->current_parsed_class_un);
16165 ggc_mark_tree (pc->non_static_initialized);
16166 ggc_mark_tree (pc->static_initialized);
16167 ggc_mark_tree (pc->instance_initializers);
16168 ggc_mark_tree (pc->import_list);
16169 ggc_mark_tree (pc->import_demand_list);
16170 ggc_mark_tree (pc->current_loop);
16171 ggc_mark_tree (pc->current_labeled_block);
16172 #endif /* JC1_LITE */
16175 mark_parser_ctxt (&pc->next);
16181 /* Register roots with the garbage collector. */
16182 ggc_add_tree_root (src_parse_roots, sizeof (src_parse_roots) / sizeof(tree));
16187 /* This section deals with the functions that are called when tables
16188 recording class initialization information are traversed. */
16190 /* Attach to PTR (a block) the declaration found in ENTRY. */
16193 attach_init_test_initialization_flags (entry, ptr)
16194 struct hash_entry *entry;
16197 tree block = (tree)ptr;
16198 struct init_test_hash_entry *ite = (struct init_test_hash_entry *) entry;
16200 TREE_CHAIN (ite->init_test_decl) = BLOCK_EXPR_DECLS (block);
16201 BLOCK_EXPR_DECLS (block) = ite->init_test_decl;
16205 /* This function is called for each statement calling a static
16206 function. ENTRY is a TREE_LIST whose PURPOSE is the called
16207 function and VALUE is a compound whose second operand can be
16208 patched with static class initialization flag assignments. */
16211 adjust_init_test_initialization (entry, info)
16212 struct hash_entry *entry;
16213 PTR info ATTRIBUTE_UNUSED;
16215 tree list = (tree)(entry->key);
16216 tree called_method = TREE_PURPOSE (list);
16217 tree compound = TREE_VALUE (list);
16218 tree assignment_compound_list = build_tree_list (called_method, NULL);
16220 /* For each class definitely initialized in CALLED_METHOD, fill
16221 ASSIGNMENT_COMPOUND with assignment to the class initialization flag. */
16222 hash_traverse (&DECL_FUNCTION_INITIALIZED_CLASS_TABLE (called_method),
16223 emit_test_initialization, assignment_compound_list);
16225 if (TREE_VALUE (assignment_compound_list))
16226 TREE_OPERAND (compound, 1) = TREE_VALUE (assignment_compound_list);
16231 /* This function is called for each classes that is known definitely
16232 assigned when a given static method was called. This function
16233 augments a compound expression (INFO) storing all assignment to
16234 initialized static class flags if a flag already existed, otherwise
16235 a new one is created. */
16238 emit_test_initialization (entry, info)
16239 struct hash_entry *entry;
16242 tree l = (tree) info;
16245 struct init_test_hash_entry *ite = (struct init_test_hash_entry *)
16246 hash_lookup (&DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl),
16247 entry->key, FALSE, NULL);
16249 /* If we haven't found a flag and we're dealing with self registered
16250 with current_function_decl, then don't do anything. Self is
16251 always added as definitely initialized but this information is
16252 valid only if used outside the current function. */
16255 if (current_function_decl != TREE_PURPOSE (l))
16256 ite = (struct init_test_hash_entry *)
16257 hash_lookup (&DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl),
16258 entry->key, TRUE, NULL);
16263 /* If we don't have a variable, create one and install it. */
16264 if (! ite->init_test_decl)
16268 decl = build_decl (VAR_DECL, NULL_TREE, boolean_type_node);
16269 MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (decl);
16270 LOCAL_CLASS_INITIALIZATION_FLAG (decl) = 1;
16271 DECL_CONTEXT (decl) = current_function_decl;
16272 DECL_INITIAL (decl) = boolean_true_node;
16274 /* The trick is to find the right context for it. */
16275 block = BLOCK_SUBBLOCKS (GET_CURRENT_BLOCK (current_function_decl));
16276 TREE_CHAIN (decl) = BLOCK_EXPR_DECLS (block);
16277 BLOCK_EXPR_DECLS (block) = decl;
16278 ite->init_test_decl = decl;
16281 decl = ite->init_test_decl;
16283 /* Now simply augment the compound that holds all the assignments
16284 pertaining to this method invocation. */
16285 init = build (MODIFY_EXPR, boolean_type_node, decl, boolean_true_node);
16286 TREE_SIDE_EFFECTS (init) = 1;
16287 TREE_VALUE (l) = add_stmt_to_compound (TREE_VALUE (l), void_type_node, init);
16288 TREE_SIDE_EFFECTS (TREE_VALUE (l)) = 1;