1 /* Call-backs for C++ error reporting.
2 This code is non-reentrant.
3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
4 2003, 2004 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
24 #include "coretypes.h"
31 #include "diagnostic.h"
32 #include "langhooks-def.h"
33 #include "cxx-pretty-print.h"
35 #define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
37 /* The global buffer where we dump everything. It is there only for
38 transitional purpose. It is expected, in the near future, to be
39 completely removed. */
40 static cxx_pretty_printer scratch_pretty_printer;
41 #define cxx_pp (&scratch_pretty_printer)
43 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
45 static const char *args_to_string (tree, int);
46 static const char *assop_to_string (enum tree_code);
47 static const char *code_to_string (enum tree_code);
48 static const char *cv_to_string (tree, int);
49 static const char *decl_to_string (tree, int);
50 static const char *expr_to_string (tree);
51 static const char *fndecl_to_string (tree, int);
52 static const char *op_to_string (enum tree_code);
53 static const char *parm_to_string (int);
54 static const char *type_to_string (tree, int);
56 static void dump_type (tree, int);
57 static void dump_typename (tree, int);
58 static void dump_simple_decl (tree, tree, int);
59 static void dump_decl (tree, int);
60 static void dump_template_decl (tree, int);
61 static void dump_function_decl (tree, int);
62 static void dump_expr (tree, int);
63 static void dump_unary_op (const char *, tree, int);
64 static void dump_binary_op (const char *, tree, int);
65 static void dump_aggr_type (tree, int);
66 static void dump_type_prefix (tree, int);
67 static void dump_type_suffix (tree, int);
68 static void dump_function_name (tree, int);
69 static void dump_expr_list (tree, int);
70 static void dump_global_iord (tree);
71 static void dump_parameters (tree, int);
72 static void dump_exception_spec (tree, int);
73 static const char *class_key_or_enum (tree);
74 static void dump_template_argument (tree, int);
75 static void dump_template_argument_list (tree, int);
76 static void dump_template_parameter (tree, int);
77 static void dump_template_bindings (tree, tree);
78 static void dump_scope (tree, int);
79 static void dump_template_parms (tree, int, int);
81 static const char *function_category (tree);
82 static void maybe_print_instantiation_context (diagnostic_context *);
83 static void print_instantiation_full_context (diagnostic_context *);
84 static void print_instantiation_partial_context (diagnostic_context *,
86 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
87 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
88 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
90 static bool cp_printer (pretty_printer *, text_info *);
91 static tree locate_error (const char *, va_list);
92 static location_t location_of (tree);
97 diagnostic_starter (global_dc) = cp_diagnostic_starter;
98 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
99 diagnostic_format_decoder (global_dc) = cp_printer;
101 pp_construct (pp_base (cxx_pp), NULL, 0);
102 pp_cxx_pretty_printer_init (cxx_pp);
105 /* Dump a scope, if deemed necessary. */
108 dump_scope (tree scope, int flags)
110 int f = ~TFF_RETURN_TYPE & (flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF));
112 if (scope == NULL_TREE)
115 if (TREE_CODE (scope) == NAMESPACE_DECL)
117 if (scope != global_namespace)
119 dump_decl (scope, f);
120 pp_cxx_colon_colon (cxx_pp);
123 else if (AGGREGATE_TYPE_P (scope))
125 dump_type (scope, f);
126 pp_cxx_colon_colon (cxx_pp);
128 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
130 dump_function_decl (scope, f);
131 pp_cxx_colon_colon (cxx_pp);
135 /* Dump the template ARGument under control of FLAGS. */
138 dump_template_argument (tree arg, int flags)
140 if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
141 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
143 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
146 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
150 dump_template_argument_list (tree args, int flags)
152 int n = TREE_VEC_LENGTH (args);
156 for (i = 0; i< n; ++i)
159 pp_separate_with_comma (cxx_pp);
160 dump_template_argument (TREE_VEC_ELT (args, i), flags);
165 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
168 dump_template_parameter (tree parm, int flags)
170 tree p = TREE_VALUE (parm);
171 tree a = TREE_PURPOSE (parm);
173 if (TREE_CODE (p) == TYPE_DECL)
175 if (flags & TFF_DECL_SPECIFIERS)
177 pp_cxx_identifier (cxx_pp, "class");
179 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
181 else if (DECL_NAME (p))
182 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
184 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
187 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
189 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
191 pp_cxx_whitespace (cxx_pp);
193 pp_cxx_whitespace (cxx_pp);
194 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
195 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
197 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
201 /* Dump, under control of FLAGS, a template-parameter-list binding.
202 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
206 dump_template_bindings (tree parms, tree args)
212 tree p = TREE_VALUE (parms);
213 int lvl = TMPL_PARMS_DEPTH (parms);
217 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
219 tree arg = NULL_TREE;
221 /* Don't crash if we had an invalid argument list. */
222 if (TMPL_ARGS_DEPTH (args) >= lvl)
224 tree lvl_args = TMPL_ARGS_LEVEL (args, lvl);
225 if (NUM_TMPL_ARGS (lvl_args) > arg_idx)
226 arg = TREE_VEC_ELT (lvl_args, arg_idx);
230 pp_separate_with_comma (cxx_pp);
231 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
232 pp_cxx_whitespace (cxx_pp);
234 pp_cxx_whitespace (cxx_pp);
236 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
238 pp_identifier (cxx_pp, "<missing>");
244 parms = TREE_CHAIN (parms);
248 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
252 dump_type (tree t, int flags)
257 if (TYPE_PTRMEMFUNC_P (t))
260 switch (TREE_CODE (t))
263 pp_identifier (cxx_pp, "<unknown type>");
267 /* A list of function parms. */
268 dump_parameters (t, flags);
271 case IDENTIFIER_NODE:
272 pp_cxx_tree_identifier (cxx_pp, t);
276 dump_type (BINFO_TYPE (t), flags);
282 dump_aggr_type (t, flags);
286 if (flags & TFF_CHASE_TYPEDEF)
288 dump_type (DECL_ORIGINAL_TYPE (t)
289 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
292 /* Else fall through. */
296 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
305 pp_type_specifier_seq (cxx_pp, t);
308 case TEMPLATE_TEMPLATE_PARM:
309 /* For parameters inside template signature. */
310 if (TYPE_IDENTIFIER (t))
311 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
313 pp_cxx_canonical_template_parameter (cxx_pp, t);
316 case BOUND_TEMPLATE_TEMPLATE_PARM:
318 tree args = TYPE_TI_ARGS (t);
319 pp_cxx_cv_qualifier_seq (cxx_pp, t);
320 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
321 pp_cxx_begin_template_argument_list (cxx_pp);
322 dump_template_argument_list (args, flags);
323 pp_cxx_end_template_argument_list (cxx_pp);
327 case TEMPLATE_TYPE_PARM:
328 pp_cxx_cv_qualifier_seq (cxx_pp, t);
329 if (TYPE_IDENTIFIER (t))
330 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
332 pp_cxx_canonical_template_parameter
333 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
336 /* This is not always necessary for pointers and such, but doing this
337 reduces code size. */
346 dump_type_prefix (t, flags);
347 dump_type_suffix (t, flags);
351 pp_cxx_cv_qualifier_seq (cxx_pp, t);
352 pp_cxx_identifier (cxx_pp, "typename");
353 dump_typename (t, flags);
356 case UNBOUND_CLASS_TEMPLATE:
357 dump_type (TYPE_CONTEXT (t), flags);
358 pp_cxx_colon_colon (cxx_pp);
359 pp_cxx_identifier (cxx_pp, "template");
360 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
364 pp_cxx_identifier (cxx_pp, "__typeof__");
365 pp_cxx_whitespace (cxx_pp);
366 pp_cxx_left_paren (cxx_pp);
367 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
368 pp_cxx_right_paren (cxx_pp);
372 pp_unsupported_tree (cxx_pp, t);
373 /* Fall through to error. */
376 pp_identifier (cxx_pp, "<type error>");
381 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
385 dump_typename (tree t, int flags)
387 tree ctx = TYPE_CONTEXT (t);
389 if (TREE_CODE (ctx) == TYPENAME_TYPE)
390 dump_typename (ctx, flags);
392 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
393 pp_cxx_colon_colon (cxx_pp);
394 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
397 /* Return the name of the supplied aggregate, or enumeral type. */
400 class_key_or_enum (tree t)
402 if (TREE_CODE (t) == ENUMERAL_TYPE)
404 else if (TREE_CODE (t) == UNION_TYPE)
406 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
412 /* Print out a class declaration T under the control of FLAGS,
413 in the form `class foo'. */
416 dump_aggr_type (tree t, int flags)
419 const char *variety = class_key_or_enum (t);
423 pp_cxx_cv_qualifier_seq (cxx_pp, t);
425 if (flags & TFF_CLASS_KEY_OR_ENUM)
426 pp_cxx_identifier (cxx_pp, variety);
428 if (flags & TFF_CHASE_TYPEDEF)
429 t = TYPE_MAIN_VARIANT (t);
431 name = TYPE_NAME (t);
435 typdef = !DECL_ARTIFICIAL (name);
436 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
437 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
438 && (CLASSTYPE_TEMPLATE_SPECIALIZATION (t)
439 || TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
440 || DECL_TEMPLATE_SPECIALIZATION (CLASSTYPE_TI_TEMPLATE (t))
441 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
442 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
445 /* Because the template names are mangled, we have to locate
446 the most general template, and use that name. */
447 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
449 while (DECL_TEMPLATE_INFO (tpl))
450 tpl = DECL_TI_TEMPLATE (tpl);
453 name = DECL_NAME (name);
456 if (name == 0 || ANON_AGGRNAME_P (name))
458 if (flags & TFF_CLASS_KEY_OR_ENUM)
459 pp_identifier (cxx_pp, "<anonymous>");
461 pp_printf (pp_base (cxx_pp), "<anonymous %s>", variety);
464 pp_cxx_tree_identifier (cxx_pp, name);
466 dump_template_parms (TYPE_TEMPLATE_INFO (t),
467 !CLASSTYPE_USE_TEMPLATE (t),
468 flags & ~TFF_TEMPLATE_HEADER);
471 /* Dump into the obstack the initial part of the output for a given type.
472 This is necessary when dealing with things like functions returning
475 return type of `int (* fee ())()': pointer -> function -> int. Both
476 pointer (and reference and offset) and function (and member) types must
477 deal with prefix and suffix.
479 Arrays must also do this for DECL nodes, like int a[], and for things like
483 dump_type_prefix (tree t, int flags)
485 if (TYPE_PTRMEMFUNC_P (t))
487 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
491 switch (TREE_CODE (t))
496 tree sub = TREE_TYPE (t);
498 dump_type_prefix (sub, flags);
499 if (TREE_CODE (sub) == ARRAY_TYPE)
501 pp_cxx_whitespace (cxx_pp);
502 pp_cxx_left_paren (cxx_pp);
504 pp_character (cxx_pp, "&*"[TREE_CODE (t) == POINTER_TYPE]);
505 pp_base (cxx_pp)->padding = pp_before;
506 pp_cxx_cv_qualifier_seq (cxx_pp, t);
512 dump_type_prefix (TREE_TYPE (t), flags);
513 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
515 pp_maybe_space (cxx_pp);
516 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
517 pp_cxx_left_paren (cxx_pp);
518 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
519 pp_cxx_colon_colon (cxx_pp);
521 pp_cxx_star (cxx_pp);
522 pp_cxx_cv_qualifier_seq (cxx_pp, t);
523 pp_base (cxx_pp)->padding = pp_before;
526 /* Can only be reached through function pointer -- this would not be
527 correct if FUNCTION_DECLs used it. */
529 dump_type_prefix (TREE_TYPE (t), flags);
530 pp_maybe_space (cxx_pp);
531 pp_cxx_left_paren (cxx_pp);
535 dump_type_prefix (TREE_TYPE (t), flags);
536 pp_maybe_space (cxx_pp);
537 pp_cxx_left_paren (cxx_pp);
538 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
539 pp_cxx_colon_colon (cxx_pp);
543 dump_type_prefix (TREE_TYPE (t), flags);
547 case IDENTIFIER_NODE:
552 case TEMPLATE_TYPE_PARM:
553 case TEMPLATE_TEMPLATE_PARM:
554 case BOUND_TEMPLATE_TEMPLATE_PARM:
565 dump_type (t, flags);
566 pp_base (cxx_pp)->padding = pp_before;
570 pp_unsupported_tree (cxx_pp, t);
573 pp_identifier (cxx_pp, "<typeprefixerror>");
578 /* Dump the suffix of type T, under control of FLAGS. This is the part
579 which appears after the identifier (or function parms). */
582 dump_type_suffix (tree t, int flags)
584 if (TYPE_PTRMEMFUNC_P (t))
585 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
587 switch (TREE_CODE (t))
592 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
593 pp_cxx_right_paren (cxx_pp);
594 dump_type_suffix (TREE_TYPE (t), flags);
597 /* Can only be reached through function pointer. */
602 pp_cxx_right_paren (cxx_pp);
603 arg = TYPE_ARG_TYPES (t);
604 if (TREE_CODE (t) == METHOD_TYPE)
605 arg = TREE_CHAIN (arg);
607 /* Function pointers don't have default args. Not in standard C++,
608 anyway; they may in g++, but we'll just pretend otherwise. */
609 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
611 if (TREE_CODE (t) == METHOD_TYPE)
612 pp_cxx_cv_qualifier_seq
613 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
614 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
615 dump_type_suffix (TREE_TYPE (t), flags);
620 pp_maybe_space (cxx_pp);
621 pp_cxx_left_bracket (cxx_pp);
624 if (host_integerp (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0))
626 (cxx_pp, tree_low_cst (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0) + 1);
627 else if (TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (t))) == MINUS_EXPR)
628 dump_expr (TREE_OPERAND (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0),
629 flags & ~TFF_EXPR_IN_PARENS);
631 dump_expr (fold (cp_build_binary_op
632 (PLUS_EXPR, TYPE_MAX_VALUE (TYPE_DOMAIN (t)),
634 flags & ~TFF_EXPR_IN_PARENS);
636 pp_cxx_right_bracket (cxx_pp);
637 dump_type_suffix (TREE_TYPE (t), flags);
641 case IDENTIFIER_NODE:
646 case TEMPLATE_TYPE_PARM:
647 case TEMPLATE_TEMPLATE_PARM:
648 case BOUND_TEMPLATE_TEMPLATE_PARM:
662 pp_unsupported_tree (cxx_pp, t);
664 /* Don't mark it here, we should have already done in
671 dump_global_iord (tree t)
673 const char *p = NULL;
675 if (DECL_GLOBAL_CTOR_P (t))
677 else if (DECL_GLOBAL_DTOR_P (t))
682 pp_printf (pp_base (cxx_pp), "(static %s for %s)", p, input_filename);
686 dump_simple_decl (tree t, tree type, int flags)
688 if (flags & TFF_DECL_SPECIFIERS)
690 dump_type_prefix (type, flags);
691 pp_maybe_space (cxx_pp);
693 if (!DECL_INITIAL (t) || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX)
694 dump_scope (CP_DECL_CONTEXT (t), flags);
696 dump_decl (DECL_NAME (t), flags);
698 pp_identifier (cxx_pp, "<anonymous>");
699 if (flags & TFF_DECL_SPECIFIERS)
700 dump_type_suffix (type, flags);
703 /* Dump a human readable string for the decl T under control of FLAGS. */
706 dump_decl (tree t, int flags)
711 switch (TREE_CODE (t))
715 /* Don't say 'typedef class A' */
716 if (DECL_ARTIFICIAL (t))
718 if ((flags & TFF_DECL_SPECIFIERS)
719 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
720 /* Say `class T' not just `T'. */
721 pp_cxx_identifier (cxx_pp, "class");
723 dump_type (TREE_TYPE (t), flags);
727 if (flags & TFF_DECL_SPECIFIERS)
728 pp_cxx_identifier (cxx_pp, "typedef");
729 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
730 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
735 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
737 pp_string (cxx_pp, "vtable for ");
738 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
739 dump_type (DECL_CONTEXT (t), flags);
742 /* Else fall through. */
746 dump_simple_decl (t, TREE_TYPE (t), flags);
750 pp_string (cxx_pp, "<return value> ");
751 dump_simple_decl (t, TREE_TYPE (t), flags);
755 if (flags & TFF_DECL_SPECIFIERS)
756 pp_cxx_declaration (cxx_pp, t);
759 dump_scope (CP_DECL_CONTEXT (t), flags);
760 if (DECL_NAME (t) == NULL_TREE)
761 pp_identifier (cxx_pp, "<unnamed>");
763 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
768 pp_expression (cxx_pp, t);
772 dump_decl (TREE_OPERAND (t, 0), flags);
773 pp_cxx_left_bracket (cxx_pp);
774 dump_decl (TREE_OPERAND (t, 1), flags);
775 pp_cxx_right_bracket (cxx_pp);
778 /* So that we can do dump_decl on an aggr type. */
782 dump_type (t, flags);
786 /* This is a pseudo destructor call which has not been folded into
787 a PSEUDO_DTOR_EXPR yet. */
788 pp_cxx_complement (cxx_pp);
789 dump_type (TREE_OPERAND (t, 0), flags);
796 /* These special cases are duplicated here so that other functions
797 can feed identifiers to error and get them demangled properly. */
798 case IDENTIFIER_NODE:
799 if (IDENTIFIER_TYPENAME_P (t))
801 pp_cxx_identifier (cxx_pp, "operator");
802 /* Not exactly IDENTIFIER_TYPE_VALUE. */
803 dump_type (TREE_TYPE (t), flags);
807 pp_cxx_tree_identifier (cxx_pp, t);
814 if (DECL_CLASS_SCOPE_P (t))
816 dump_type (DECL_CONTEXT (t), flags);
817 pp_cxx_colon_colon (cxx_pp);
819 else if (DECL_CONTEXT (t))
821 dump_decl (DECL_CONTEXT (t), flags);
822 pp_cxx_colon_colon (cxx_pp);
824 dump_decl (DECL_NAME (t), flags);
828 /* If there's only one function, just treat it like an ordinary
834 if (! DECL_LANG_SPECIFIC (t))
835 pp_identifier (cxx_pp, "<built-in>");
836 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
837 dump_global_iord (t);
839 dump_function_decl (t, flags);
843 dump_template_decl (t, flags);
846 case TEMPLATE_ID_EXPR:
848 tree name = TREE_OPERAND (t, 0);
850 if (is_overloaded_fn (name))
851 name = DECL_NAME (get_first_fn (name));
852 dump_decl (name, flags);
853 pp_cxx_begin_template_argument_list (cxx_pp);
854 if (TREE_OPERAND (t, 1))
855 dump_template_argument_list (TREE_OPERAND (t, 1), flags);
856 pp_cxx_end_template_argument_list (cxx_pp);
861 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
865 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
866 || (DECL_INITIAL (t) &&
867 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
868 dump_simple_decl (t, TREE_TYPE (t), flags);
869 else if (DECL_NAME (t))
870 dump_decl (DECL_NAME (t), flags);
871 else if (DECL_INITIAL (t))
872 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
874 pp_identifier (cxx_pp, "<enumerator>");
878 pp_cxx_identifier (cxx_pp, "using");
879 dump_type (DECL_INITIAL (t), flags);
880 pp_cxx_colon_colon (cxx_pp);
881 dump_decl (DECL_NAME (t), flags);
885 dump_decl (BASELINK_FUNCTIONS (t), flags);
888 case NON_DEPENDENT_EXPR:
889 dump_expr (t, flags);
892 case TEMPLATE_TYPE_PARM:
893 if (flags & TFF_DECL_SPECIFIERS)
894 pp_cxx_declaration (cxx_pp, t);
896 pp_type_id (cxx_pp, t);
900 pp_unsupported_tree (cxx_pp, t);
901 /* Fall through to error. */
904 pp_identifier (cxx_pp, "<declaration error>");
909 /* Dump a template declaration T under control of FLAGS. This means the
910 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
913 dump_template_decl (tree t, int flags)
915 tree orig_parms = DECL_TEMPLATE_PARMS (t);
919 if (flags & TFF_TEMPLATE_HEADER)
921 for (parms = orig_parms = nreverse (orig_parms);
923 parms = TREE_CHAIN (parms))
925 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
926 int len = TREE_VEC_LENGTH (inner_parms);
928 pp_cxx_identifier (cxx_pp, "template");
929 pp_cxx_begin_template_argument_list (cxx_pp);
931 /* If we've shown the template prefix, we'd better show the
932 parameters' and decl's type too. */
933 flags |= TFF_DECL_SPECIFIERS;
935 for (i = 0; i < len; i++)
938 pp_separate_with_comma (cxx_pp);
939 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
941 pp_cxx_end_template_argument_list (cxx_pp);
942 pp_cxx_whitespace (cxx_pp);
944 nreverse(orig_parms);
946 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
947 /* Say `template<arg> class TT' not just `template<arg> TT'. */
948 pp_cxx_identifier (cxx_pp, "class");
951 if (TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
952 dump_type (TREE_TYPE (t),
953 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
954 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
955 else if (TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
956 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
959 gcc_assert (TREE_TYPE (t));
960 switch (NEXT_CODE (t))
964 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
967 /* This case can occur with some invalid code. */
968 dump_type (TREE_TYPE (t),
969 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
970 | (flags & TFF_DECL_SPECIFIERS
971 ? TFF_CLASS_KEY_OR_ENUM : 0));
976 /* Pretty print a function decl. There are several ways we want to print a
977 function declaration. The TFF_ bits in FLAGS tells us how to behave.
978 As error can only apply the '#' flag once to give 0 and 1 for V, there
979 is %D which doesn't print the throw specs, and %F which does. */
982 dump_function_decl (tree t, int flags)
986 tree cname = NULL_TREE;
987 tree template_args = NULL_TREE;
988 tree template_parms = NULL_TREE;
989 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
991 if (TREE_CODE (t) == TEMPLATE_DECL)
992 t = DECL_TEMPLATE_RESULT (t);
994 /* Pretty print template instantiations only. */
995 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t))
999 template_args = DECL_TI_ARGS (t);
1000 tmpl = most_general_template (t);
1001 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1003 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1008 fntype = TREE_TYPE (t);
1009 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1011 if (DECL_CLASS_SCOPE_P (t))
1012 cname = DECL_CONTEXT (t);
1013 /* This is for partially instantiated template methods. */
1014 else if (TREE_CODE (fntype) == METHOD_TYPE)
1015 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1017 if (!(flags & TFF_DECL_SPECIFIERS))
1019 else if (DECL_STATIC_FUNCTION_P (t))
1020 pp_cxx_identifier (cxx_pp, "static");
1021 else if (DECL_VIRTUAL_P (t))
1022 pp_cxx_identifier (cxx_pp, "virtual");
1024 /* Print the return type? */
1026 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1027 && !DECL_DESTRUCTOR_P (t);
1029 dump_type_prefix (TREE_TYPE (fntype), flags);
1031 /* Print the function name. */
1034 dump_type (cname, flags);
1035 pp_cxx_colon_colon (cxx_pp);
1038 dump_scope (CP_DECL_CONTEXT (t), flags);
1040 dump_function_name (t, flags);
1042 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1044 dump_parameters (parmtypes, flags);
1046 if (TREE_CODE (fntype) == METHOD_TYPE)
1048 pp_base (cxx_pp)->padding = pp_before;
1049 pp_cxx_cv_qualifier_seq
1050 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1053 if (flags & TFF_EXCEPTION_SPECIFICATION)
1055 pp_base (cxx_pp)->padding = pp_before;
1056 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (fntype), flags);
1060 dump_type_suffix (TREE_TYPE (fntype), flags);
1063 /* If T is a template instantiation, dump the parameter binding. */
1064 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1066 pp_cxx_whitespace (cxx_pp);
1067 pp_cxx_left_bracket (cxx_pp);
1068 pp_cxx_identifier (cxx_pp, "with");
1069 pp_cxx_whitespace (cxx_pp);
1070 dump_template_bindings (template_parms, template_args);
1071 pp_cxx_right_bracket (cxx_pp);
1075 /* Print a parameter list. If this is for a member function, the
1076 member object ptr (and any other hidden args) should have
1077 already been removed. */
1080 dump_parameters (tree parmtypes, int flags)
1084 pp_cxx_left_paren (cxx_pp);
1086 for (first = 1; parmtypes != void_list_node;
1087 parmtypes = TREE_CHAIN (parmtypes))
1090 pp_separate_with_comma (cxx_pp);
1094 pp_cxx_identifier (cxx_pp, "...");
1097 dump_type (TREE_VALUE (parmtypes), flags);
1099 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1101 pp_cxx_whitespace (cxx_pp);
1103 pp_cxx_whitespace (cxx_pp);
1104 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1108 pp_cxx_right_paren (cxx_pp);
1111 /* Print an exception specification. T is the exception specification. */
1114 dump_exception_spec (tree t, int flags)
1118 pp_cxx_identifier (cxx_pp, "throw");
1119 pp_cxx_whitespace (cxx_pp);
1120 pp_cxx_left_paren (cxx_pp);
1121 if (TREE_VALUE (t) != NULL_TREE)
1124 dump_type (TREE_VALUE (t), flags);
1128 pp_separate_with_comma (cxx_pp);
1130 pp_cxx_right_paren (cxx_pp);
1134 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1135 and destructors properly. */
1138 dump_function_name (tree t, int flags)
1140 tree name = DECL_NAME (t);
1142 /* We can get here with a decl that was synthesized by language-
1143 independent machinery (e.g. coverage.c) in which case it won't
1144 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1145 will crash. In this case it is safe just to print out the
1147 if (!DECL_LANG_SPECIFIC (t))
1149 pp_cxx_tree_identifier (cxx_pp, name);
1153 if (TREE_CODE (t) == TEMPLATE_DECL)
1154 t = DECL_TEMPLATE_RESULT (t);
1156 /* Don't let the user see __comp_ctor et al. */
1157 if (DECL_CONSTRUCTOR_P (t)
1158 || DECL_DESTRUCTOR_P (t))
1159 name = constructor_name (DECL_CONTEXT (t));
1161 if (DECL_DESTRUCTOR_P (t))
1163 pp_cxx_complement (cxx_pp);
1164 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1166 else if (DECL_CONV_FN_P (t))
1168 /* This cannot use the hack that the operator's return
1169 type is stashed off of its name because it may be
1170 used for error reporting. In the case of conflicting
1171 declarations, both will have the same name, yet
1172 the types will be different, hence the TREE_TYPE field
1173 of the first name will be clobbered by the second. */
1174 pp_cxx_identifier (cxx_pp, "operator");
1175 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1177 else if (IDENTIFIER_OPNAME_P (name))
1178 pp_cxx_tree_identifier (cxx_pp, name);
1180 dump_decl (name, flags);
1182 if (DECL_TEMPLATE_INFO (t)
1183 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1184 && (DECL_TEMPLATE_SPECIALIZATION (t)
1185 || TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1186 || DECL_TEMPLATE_SPECIALIZATION (DECL_TI_TEMPLATE (t))
1187 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1188 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1191 /* Dump the template parameters from the template info INFO under control of
1192 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1193 specialization (partial or complete). For partial specializations we show
1194 the specialized parameter values. For a primary template we show no
1198 dump_template_parms (tree info, int primary, int flags)
1200 tree args = info ? TI_ARGS (info) : NULL_TREE;
1202 if (primary && flags & TFF_TEMPLATE_NAME)
1204 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1205 pp_cxx_begin_template_argument_list (cxx_pp);
1207 /* Be careful only to print things when we have them, so as not
1208 to crash producing error messages. */
1209 if (args && !primary)
1213 if (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (args))
1214 args = TREE_VEC_ELT (args, TREE_VEC_LENGTH (args) - 1);
1216 len = TREE_VEC_LENGTH (args);
1218 for (ix = 0; ix != len; ix++)
1220 tree arg = TREE_VEC_ELT (args, ix);
1223 pp_separate_with_comma (cxx_pp);
1226 pp_identifier (cxx_pp, "<template parameter error>");
1228 dump_template_argument (arg, flags);
1233 tree tpl = TI_TEMPLATE (info);
1234 tree parms = DECL_TEMPLATE_PARMS (tpl);
1237 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1238 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1240 for (ix = 0; ix != len; ix++)
1242 tree parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1245 pp_separate_with_comma (cxx_pp);
1247 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1250 pp_cxx_end_template_argument_list (cxx_pp);
1253 /* Print out a list of initializers (subr of dump_expr). */
1256 dump_expr_list (tree l, int flags)
1260 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1263 pp_separate_with_comma (cxx_pp);
1267 /* Print out an expression E under control of FLAGS. */
1270 dump_expr (tree t, int flags)
1275 switch (TREE_CODE (t))
1283 case NAMESPACE_DECL:
1285 case IDENTIFIER_NODE:
1286 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1292 pp_c_constant (pp_c_base (cxx_pp), t);
1296 pp_cxx_identifier (cxx_pp, "throw");
1297 dump_expr (TREE_OPERAND (t, 0), flags);
1301 pp_ampersand (cxx_pp);
1302 dump_type (PTRMEM_CST_CLASS (t), flags);
1303 pp_cxx_colon_colon (cxx_pp);
1304 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1308 pp_cxx_left_paren (cxx_pp);
1309 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1310 pp_separate_with_comma (cxx_pp);
1311 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1312 pp_cxx_right_paren (cxx_pp);
1316 pp_cxx_left_paren (cxx_pp);
1317 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1318 pp_string (cxx_pp, " ? ");
1319 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1320 pp_string (cxx_pp, " : ");
1321 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1322 pp_cxx_right_paren (cxx_pp);
1326 if (TREE_HAS_CONSTRUCTOR (t))
1328 pp_cxx_identifier (cxx_pp, "new");
1329 pp_cxx_whitespace (cxx_pp);
1330 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1333 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1336 case AGGR_INIT_EXPR:
1338 tree fn = NULL_TREE;
1340 if (TREE_CODE (TREE_OPERAND (t, 0)) == ADDR_EXPR)
1341 fn = TREE_OPERAND (TREE_OPERAND (t, 0), 0);
1343 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1345 if (DECL_CONSTRUCTOR_P (fn))
1346 dump_type (DECL_CONTEXT (fn), flags);
1351 dump_expr (TREE_OPERAND (t, 0), 0);
1353 pp_cxx_left_paren (cxx_pp);
1354 if (TREE_OPERAND (t, 1))
1355 dump_expr_list (TREE_CHAIN (TREE_OPERAND (t, 1)), flags);
1356 pp_cxx_right_paren (cxx_pp);
1361 tree fn = TREE_OPERAND (t, 0);
1362 tree args = TREE_OPERAND (t, 1);
1364 if (TREE_CODE (fn) == ADDR_EXPR)
1365 fn = TREE_OPERAND (fn, 0);
1367 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1369 tree ob = TREE_VALUE (args);
1370 if (TREE_CODE (ob) == ADDR_EXPR)
1372 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1375 else if (TREE_CODE (ob) != PARM_DECL
1376 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1378 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1381 args = TREE_CHAIN (args);
1383 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1384 pp_cxx_left_paren (cxx_pp);
1385 dump_expr_list (args, flags);
1386 pp_cxx_right_paren (cxx_pp);
1392 tree type = TREE_OPERAND (t, 1);
1393 tree init = TREE_OPERAND (t, 2);
1394 if (NEW_EXPR_USE_GLOBAL (t))
1395 pp_cxx_colon_colon (cxx_pp);
1396 pp_cxx_identifier (cxx_pp, "new");
1397 if (TREE_OPERAND (t, 0))
1399 pp_cxx_left_paren (cxx_pp);
1400 dump_expr_list (TREE_OPERAND (t, 0), flags);
1401 pp_cxx_right_paren (cxx_pp);
1402 pp_cxx_whitespace (cxx_pp);
1404 if (TREE_CODE (type) == ARRAY_REF)
1405 type = build_cplus_array_type
1406 (TREE_OPERAND (type, 0),
1407 build_index_type (fold (build2 (MINUS_EXPR, integer_type_node,
1408 TREE_OPERAND (type, 1),
1409 integer_one_node))));
1410 dump_type (type, flags);
1413 pp_cxx_left_paren (cxx_pp);
1414 if (TREE_CODE (init) == TREE_LIST)
1415 dump_expr_list (init, flags);
1416 else if (init == void_zero_node)
1417 /* This representation indicates an empty initializer,
1418 e.g.: "new int()". */
1421 dump_expr (init, flags);
1422 pp_cxx_right_paren (cxx_pp);
1428 /* Note that this only works for G++ target exprs. If somebody
1429 builds a general TARGET_EXPR, there's no way to represent that
1430 it initializes anything other that the parameter slot for the
1431 default argument. Note we may have cleared out the first
1432 operand in expand_expr, so don't go killing ourselves. */
1433 if (TREE_OPERAND (t, 1))
1434 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1442 case TRUNC_DIV_EXPR:
1443 case TRUNC_MOD_EXPR:
1451 case TRUTH_ANDIF_EXPR:
1452 case TRUTH_ORIF_EXPR:
1459 case EXACT_DIV_EXPR:
1460 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1464 case FLOOR_DIV_EXPR:
1465 case ROUND_DIV_EXPR:
1467 dump_binary_op ("/", t, flags);
1471 case FLOOR_MOD_EXPR:
1472 case ROUND_MOD_EXPR:
1473 dump_binary_op ("%", t, flags);
1478 tree ob = TREE_OPERAND (t, 0);
1479 if (TREE_CODE (ob) == INDIRECT_REF)
1481 ob = TREE_OPERAND (ob, 0);
1482 if (TREE_CODE (ob) != PARM_DECL
1483 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1485 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1486 pp_cxx_arrow (cxx_pp);
1491 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1492 pp_cxx_dot (cxx_pp);
1494 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1499 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1500 pp_cxx_left_bracket (cxx_pp);
1501 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1502 pp_cxx_right_bracket (cxx_pp);
1506 if (TREE_TYPE (t) && VOID_TYPE_P (TREE_TYPE (t)))
1508 pp_cxx_left_paren (cxx_pp);
1509 dump_type (TREE_TYPE (t), flags);
1510 pp_cxx_right_paren (cxx_pp);
1511 dump_expr (TREE_OPERAND (t, 0), flags);
1514 dump_unary_op ("+", t, flags);
1518 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1519 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1520 /* An ADDR_EXPR can have reference type. In that case, we
1521 shouldn't print the `&' doing so indicates to the user
1522 that the expression has pointer type. */
1524 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1525 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1527 dump_unary_op ("&", t, flags);
1531 if (TREE_HAS_CONSTRUCTOR (t))
1533 t = TREE_OPERAND (t, 0);
1534 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1535 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1536 pp_cxx_left_paren (cxx_pp);
1537 dump_expr_list (TREE_CHAIN (TREE_OPERAND (t, 1)), flags);
1538 pp_cxx_right_paren (cxx_pp);
1542 if (TREE_OPERAND (t,0) != NULL_TREE
1543 && TREE_TYPE (TREE_OPERAND (t, 0))
1544 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1545 dump_expr (TREE_OPERAND (t, 0), flags);
1547 dump_unary_op ("*", t, flags);
1553 case TRUTH_NOT_EXPR:
1554 case PREDECREMENT_EXPR:
1555 case PREINCREMENT_EXPR:
1556 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1559 case POSTDECREMENT_EXPR:
1560 case POSTINCREMENT_EXPR:
1561 pp_cxx_left_paren (cxx_pp);
1562 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1563 pp_cxx_identifier (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1564 pp_cxx_right_paren (cxx_pp);
1567 case NON_LVALUE_EXPR:
1568 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1569 should be another level of INDIRECT_REF so that I don't have to do
1571 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1573 tree next = TREE_TYPE (TREE_TYPE (t));
1575 while (TREE_CODE (next) == POINTER_TYPE)
1576 next = TREE_TYPE (next);
1578 if (TREE_CODE (next) == FUNCTION_TYPE)
1580 if (flags & TFF_EXPR_IN_PARENS)
1581 pp_cxx_left_paren (cxx_pp);
1582 pp_cxx_star (cxx_pp);
1583 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1584 if (flags & TFF_EXPR_IN_PARENS)
1585 pp_cxx_right_paren (cxx_pp);
1588 /* Else fall through. */
1590 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1595 tree op = TREE_OPERAND (t, 0);
1597 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1599 /* It is a cast, but we cannot tell whether it is a
1600 reinterpret or static cast. Use the C style notation. */
1601 if (flags & TFF_EXPR_IN_PARENS)
1602 pp_cxx_left_paren (cxx_pp);
1603 pp_cxx_left_paren (cxx_pp);
1604 dump_type (TREE_TYPE (t), flags);
1605 pp_cxx_right_paren (cxx_pp);
1606 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1607 if (flags & TFF_EXPR_IN_PARENS)
1608 pp_cxx_right_paren (cxx_pp);
1611 dump_expr (op, flags);
1616 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1618 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1620 if (integer_zerop (idx))
1622 /* A NULL pointer-to-member constant. */
1623 pp_cxx_left_paren (cxx_pp);
1624 pp_cxx_left_paren (cxx_pp);
1625 dump_type (TREE_TYPE (t), flags);
1626 pp_cxx_right_paren (cxx_pp);
1627 pp_character (cxx_pp, '0');
1628 pp_cxx_right_paren (cxx_pp);
1631 else if (host_integerp (idx, 0))
1634 unsigned HOST_WIDE_INT n;
1636 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1637 t = TYPE_METHOD_BASETYPE (t);
1638 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1640 n = tree_low_cst (idx, 0);
1642 /* Map vtable index back one, to allow for the null pointer to
1646 while (n > 0 && virtuals)
1649 virtuals = TREE_CHAIN (virtuals);
1653 dump_expr (BV_FN (virtuals),
1654 flags | TFF_EXPR_IN_PARENS);
1659 if (TREE_TYPE (t) && !CONSTRUCTOR_ELTS (t))
1661 dump_type (TREE_TYPE (t), 0);
1662 pp_cxx_left_paren (cxx_pp);
1663 pp_cxx_right_paren (cxx_pp);
1667 pp_cxx_left_brace (cxx_pp);
1668 dump_expr_list (CONSTRUCTOR_ELTS (t), flags);
1669 pp_cxx_right_brace (cxx_pp);
1676 tree ob = TREE_OPERAND (t, 0);
1677 if (is_dummy_object (ob))
1679 t = TREE_OPERAND (t, 1);
1680 if (TREE_CODE (t) == FUNCTION_DECL)
1682 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
1683 else if (BASELINK_P (t))
1684 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
1685 flags | TFF_EXPR_IN_PARENS);
1687 dump_decl (t, flags);
1691 if (TREE_CODE (ob) == INDIRECT_REF)
1693 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1694 pp_cxx_arrow (cxx_pp);
1695 pp_cxx_star (cxx_pp);
1699 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1700 pp_cxx_dot (cxx_pp);
1701 pp_cxx_star (cxx_pp);
1703 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1708 case TEMPLATE_PARM_INDEX:
1709 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
1713 pp_expression (cxx_pp, t);
1717 if (TREE_OPERAND (t, 0) == NULL_TREE
1718 || TREE_CHAIN (TREE_OPERAND (t, 0)))
1720 dump_type (TREE_TYPE (t), flags);
1721 pp_cxx_left_paren (cxx_pp);
1722 dump_expr_list (TREE_OPERAND (t, 0), flags);
1723 pp_cxx_right_paren (cxx_pp);
1727 pp_cxx_left_paren (cxx_pp);
1728 dump_type (TREE_TYPE (t), flags);
1729 pp_cxx_right_paren (cxx_pp);
1730 pp_cxx_left_paren (cxx_pp);
1731 dump_expr_list (TREE_OPERAND (t, 0), flags);
1732 pp_cxx_right_paren (cxx_pp);
1736 case STATIC_CAST_EXPR:
1737 pp_cxx_identifier (cxx_pp, "static_cast");
1739 case REINTERPRET_CAST_EXPR:
1740 pp_cxx_identifier (cxx_pp, "reinterpret_cast");
1742 case CONST_CAST_EXPR:
1743 pp_cxx_identifier (cxx_pp, "const_cast");
1745 case DYNAMIC_CAST_EXPR:
1746 pp_cxx_identifier (cxx_pp, "dynamic_cast");
1748 pp_cxx_begin_template_argument_list (cxx_pp);
1749 dump_type (TREE_TYPE (t), flags);
1750 pp_cxx_end_template_argument_list (cxx_pp);
1751 pp_cxx_left_paren (cxx_pp);
1752 dump_expr (TREE_OPERAND (t, 0), flags);
1753 pp_cxx_right_paren (cxx_pp);
1757 dump_expr (TREE_OPERAND (t, 0), flags);
1758 pp_cxx_arrow (cxx_pp);
1763 if (TREE_CODE (t) == SIZEOF_EXPR)
1764 pp_cxx_identifier (cxx_pp, "sizeof");
1767 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
1768 pp_cxx_identifier (cxx_pp, "__alignof__");
1770 pp_cxx_whitespace (cxx_pp);
1771 pp_cxx_left_paren (cxx_pp);
1772 if (TYPE_P (TREE_OPERAND (t, 0)))
1773 dump_type (TREE_OPERAND (t, 0), flags);
1775 dump_expr (TREE_OPERAND (t, 0), flags);
1776 pp_cxx_right_paren (cxx_pp);
1781 pp_cxx_identifier (cxx_pp, operator_name_info[TREE_CODE (t)].name);
1782 pp_cxx_whitespace (cxx_pp);
1783 dump_expr (TREE_OPERAND (t, 0), flags);
1787 pp_identifier (cxx_pp, "<unparsed>");
1790 case TRY_CATCH_EXPR:
1791 case WITH_CLEANUP_EXPR:
1792 case CLEANUP_POINT_EXPR:
1793 dump_expr (TREE_OPERAND (t, 0), flags);
1796 case PSEUDO_DTOR_EXPR:
1797 dump_expr (TREE_OPERAND (t, 2), flags);
1798 pp_cxx_dot (cxx_pp);
1799 dump_type (TREE_OPERAND (t, 0), flags);
1800 pp_cxx_colon_colon (cxx_pp);
1801 pp_cxx_complement (cxx_pp);
1802 dump_type (TREE_OPERAND (t, 1), flags);
1805 case TEMPLATE_ID_EXPR:
1806 dump_decl (t, flags);
1810 /* We don't yet have a way of dumping statements in a
1811 human-readable format. */
1812 pp_string (cxx_pp, "({...})");
1816 pp_cxx_left_brace (cxx_pp);
1817 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1818 pp_cxx_right_brace (cxx_pp);
1822 pp_string (cxx_pp, "while (1) { ");
1823 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1824 pp_cxx_right_brace (cxx_pp);
1828 pp_string (cxx_pp, "if (");
1829 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1830 pp_string (cxx_pp, ") break; ");
1834 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
1837 case EMPTY_CLASS_EXPR:
1838 dump_type (TREE_TYPE (t), flags);
1839 pp_cxx_left_paren (cxx_pp);
1840 pp_cxx_right_paren (cxx_pp);
1843 case NON_DEPENDENT_EXPR:
1844 dump_expr (TREE_OPERAND (t, 0), flags);
1847 /* This list is incomplete, but should suffice for now.
1848 It is very important that `sorry' does not call
1849 `report_error_function'. That could cause an infinite loop. */
1851 pp_unsupported_tree (cxx_pp, t);
1852 /* fall through to ERROR_MARK... */
1854 pp_identifier (cxx_pp, "<expression error>");
1860 dump_binary_op (const char *opstring, tree t, int flags)
1862 pp_cxx_left_paren (cxx_pp);
1863 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1864 pp_cxx_whitespace (cxx_pp);
1866 pp_cxx_identifier (cxx_pp, opstring);
1868 pp_identifier (cxx_pp, "<unknown operator>");
1869 pp_cxx_whitespace (cxx_pp);
1870 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1871 pp_cxx_right_paren (cxx_pp);
1875 dump_unary_op (const char *opstring, tree t, int flags)
1877 if (flags & TFF_EXPR_IN_PARENS)
1878 pp_cxx_left_paren (cxx_pp);
1879 pp_cxx_identifier (cxx_pp, opstring);
1880 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1881 if (flags & TFF_EXPR_IN_PARENS)
1882 pp_cxx_right_paren (cxx_pp);
1886 reinit_cxx_pp (void)
1888 pp_clear_output_area (cxx_pp);
1889 pp_base (cxx_pp)->padding = pp_none;
1890 pp_indentation (cxx_pp) = 0;
1891 pp_needs_newline (cxx_pp) = false;
1892 cxx_pp->enclosing_scope = 0;
1896 /* Exported interface to stringifying types, exprs and decls under TFF_*
1900 type_as_string (tree typ, int flags)
1903 dump_type (typ, flags);
1904 return pp_formatted_text (cxx_pp);
1908 expr_as_string (tree decl, int flags)
1911 dump_expr (decl, flags);
1912 return pp_formatted_text (cxx_pp);
1916 decl_as_string (tree decl, int flags)
1919 dump_decl (decl, flags);
1920 return pp_formatted_text (cxx_pp);
1924 context_as_string (tree context, int flags)
1927 dump_scope (context, flags);
1928 return pp_formatted_text (cxx_pp);
1931 /* Generate the three forms of printable names for cxx_printable_name. */
1934 lang_decl_name (tree decl, int v)
1937 return decl_as_string (decl, TFF_DECL_SPECIFIERS);
1940 if (v == 1 && DECL_CLASS_SCOPE_P (decl))
1942 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
1943 pp_cxx_colon_colon (cxx_pp);
1946 if (TREE_CODE (decl) == FUNCTION_DECL)
1947 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
1949 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
1951 return pp_formatted_text (cxx_pp);
1955 location_of (tree t)
1957 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
1958 t = DECL_CONTEXT (t);
1959 else if (TYPE_P (t))
1960 t = TYPE_MAIN_DECL (t);
1961 else if (TREE_CODE (t) == OVERLOAD)
1962 t = OVL_FUNCTION (t);
1964 return DECL_SOURCE_LOCATION (t);
1967 /* Now the interfaces from error et al to dump_type et al. Each takes an
1968 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
1972 decl_to_string (tree decl, int verbose)
1976 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
1977 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
1978 flags = TFF_CLASS_KEY_OR_ENUM;
1980 flags |= TFF_DECL_SPECIFIERS;
1981 else if (TREE_CODE (decl) == FUNCTION_DECL)
1982 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
1983 flags |= TFF_TEMPLATE_HEADER;
1986 dump_decl (decl, flags);
1987 return pp_formatted_text (cxx_pp);
1991 expr_to_string (tree decl)
1994 dump_expr (decl, 0);
1995 return pp_formatted_text (cxx_pp);
1999 fndecl_to_string (tree fndecl, int verbose)
2003 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS;
2005 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2007 dump_decl (fndecl, flags);
2008 return pp_formatted_text (cxx_pp);
2013 code_to_string (enum tree_code c)
2015 return tree_code_name [c];
2019 language_to_string (enum languages c)
2026 case lang_cplusplus:
2038 /* Return the proper printed version of a parameter to a C++ function. */
2041 parm_to_string (int p)
2045 pp_string (cxx_pp, "'this'");
2047 pp_decimal_int (cxx_pp, p + 1);
2048 return pp_formatted_text (cxx_pp);
2052 op_to_string (enum tree_code p)
2054 tree id = operator_name_info[(int) p].identifier;
2055 return id ? IDENTIFIER_POINTER (id) : "<unknown>";
2059 type_to_string (tree typ, int verbose)
2063 flags |= TFF_CLASS_KEY_OR_ENUM;
2064 flags |= TFF_TEMPLATE_HEADER;
2067 dump_type (typ, flags);
2068 return pp_formatted_text (cxx_pp);
2072 assop_to_string (enum tree_code p)
2074 tree id = assignment_operator_name_info[(int) p].identifier;
2075 return id ? IDENTIFIER_POINTER (id) : "{unknown}";
2079 args_to_string (tree p, int verbose)
2083 flags |= TFF_CLASS_KEY_OR_ENUM;
2088 if (TYPE_P (TREE_VALUE (p)))
2089 return type_as_string (p, flags);
2092 for (; p; p = TREE_CHAIN (p))
2094 if (TREE_VALUE (p) == null_node)
2095 pp_cxx_identifier (cxx_pp, "NULL");
2097 dump_type (error_type (TREE_VALUE (p)), flags);
2099 pp_separate_with_comma (cxx_pp);
2101 return pp_formatted_text (cxx_pp);
2105 cv_to_string (tree p, int v)
2108 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2109 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2110 return pp_formatted_text (cxx_pp);
2113 /* Langhook for print_error_function. */
2115 cxx_print_error_function (diagnostic_context *context, const char *file)
2117 lhd_print_error_function (context, file);
2118 pp_base_set_prefix (context->printer, file);
2119 maybe_print_instantiation_context (context);
2123 cp_diagnostic_starter (diagnostic_context *context,
2124 diagnostic_info *diagnostic)
2126 diagnostic_report_current_module (context);
2127 cp_print_error_function (context, diagnostic);
2128 maybe_print_instantiation_context (context);
2129 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2133 cp_diagnostic_finalizer (diagnostic_context *context,
2134 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2136 pp_base_destroy_prefix (context->printer);
2139 /* Print current function onto BUFFER, in the process of reporting
2140 a diagnostic message. Called from cp_diagnostic_starter. */
2142 cp_print_error_function (diagnostic_context *context,
2143 diagnostic_info *diagnostic)
2145 if (diagnostic_last_function_changed (context))
2147 const char *old_prefix = context->printer->prefix;
2148 const char *file = LOCATION_FILE (diagnostic->location);
2149 char *new_prefix = file ? file_name_as_prefix (file) : NULL;
2151 pp_base_set_prefix (context->printer, new_prefix);
2153 if (current_function_decl == NULL)
2154 pp_base_string (context->printer, "At global scope:");
2156 pp_printf (context->printer, "In %s `%s':",
2157 function_category (current_function_decl),
2158 cxx_printable_name (current_function_decl, 2));
2159 pp_base_newline (context->printer);
2161 diagnostic_set_last_function (context);
2162 pp_base_destroy_prefix (context->printer);
2163 context->printer->prefix = old_prefix;
2167 /* Returns a description of FUNCTION using standard terminology. */
2169 function_category (tree fn)
2171 if (DECL_FUNCTION_MEMBER_P (fn))
2173 if (DECL_STATIC_FUNCTION_P (fn))
2174 return "static member function";
2175 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2176 return "copy constructor";
2177 else if (DECL_CONSTRUCTOR_P (fn))
2178 return "constructor";
2179 else if (DECL_DESTRUCTOR_P (fn))
2180 return "destructor";
2182 return "member function";
2188 /* Report the full context of a current template instantiation,
2191 print_instantiation_full_context (diagnostic_context *context)
2193 tree p = current_instantiation ();
2194 location_t location = input_location;
2198 if (current_function_decl != TINST_DECL (p)
2199 && current_function_decl != NULL_TREE)
2200 /* We can get here during the processing of some synthesized
2201 method. Then, TINST_DECL (p) will be the function that's causing
2206 if (current_function_decl == TINST_DECL (p))
2207 /* Avoid redundancy with the the "In function" line. */;
2209 pp_verbatim (context->printer,
2210 "%s: In instantiation of `%s':\n",
2211 LOCATION_FILE (location),
2212 decl_as_string (TINST_DECL (p),
2213 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2215 location = TINST_LOCATION (p);
2220 print_instantiation_partial_context (context, p, location);
2223 /* Same as above but less verbose. */
2225 print_instantiation_partial_context (diagnostic_context *context,
2226 tree t, location_t loc)
2228 expanded_location xloc;
2229 for (; ; t = TREE_CHAIN (t))
2231 xloc = expand_location (loc);
2234 pp_verbatim (context->printer, "%s:%d: instantiated from `%s'\n",
2235 xloc.file, xloc.line,
2236 decl_as_string (TINST_DECL (t),
2237 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2238 loc = TINST_LOCATION (t);
2240 pp_verbatim (context->printer, "%s:%d: instantiated from here\n",
2241 xloc.file, xloc.line);
2244 /* Called from cp_thing to print the template context for an error. */
2246 maybe_print_instantiation_context (diagnostic_context *context)
2248 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2251 record_last_problematic_instantiation ();
2252 print_instantiation_full_context (context);
2255 /* Report the bare minimum context of a template instantiation. */
2257 print_instantiation_context (void)
2259 print_instantiation_partial_context
2260 (global_dc, current_instantiation (), input_location);
2261 diagnostic_flush_buffer (global_dc);
2264 /* Called from output_format -- during diagnostic message processing --
2265 to handle C++ specific format specifier with the following meanings:
2266 %A function argument-list.
2270 %F function declaration.
2271 %L language as used in extern "lang".
2273 %P function parameter whose position is indicated by an integer.
2274 %Q assignment operator.
2278 cp_printer (pretty_printer *pp, text_info *text)
2282 #define next_tree va_arg (*text->args_ptr, tree)
2283 #define next_tcode va_arg (*text->args_ptr, enum tree_code)
2284 #define next_lang va_arg (*text->args_ptr, enum languages)
2285 #define next_int va_arg (*text->args_ptr, int)
2287 if (*text->format_spec == '+')
2288 ++text->format_spec;
2289 if (*text->format_spec == '#')
2292 ++text->format_spec;
2295 switch (*text->format_spec)
2297 case 'A': result = args_to_string (next_tree, verbose); break;
2298 case 'C': result = code_to_string (next_tcode); break;
2299 case 'D': result = decl_to_string (next_tree, verbose); break;
2300 case 'E': result = expr_to_string (next_tree); break;
2301 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2302 case 'L': result = language_to_string (next_lang); break;
2303 case 'O': result = op_to_string (next_tcode); break;
2304 case 'P': result = parm_to_string (next_int); break;
2305 case 'Q': result = assop_to_string (next_tcode); break;
2306 case 'T': result = type_to_string (next_tree, verbose); break;
2307 case 'V': result = cv_to_string (next_tree, verbose); break;
2313 pp_base_string (pp, result);
2321 /* These are temporary wrapper functions which handle the historic
2322 behavior of cp_*_at. */
2325 locate_error (const char *msgid, va_list ap)
2331 for (f = msgid; *f; f++)
2337 ++f; /* ignore quoting flag. */
2349 /* Just ignore these possibilities. */
2352 case 'd': (void) va_arg (ap, int); break;
2353 case 's': (void) va_arg (ap, char *); break;
2354 case 'L': (void) va_arg (ap, enum languages); break;
2357 case 'Q': (void) va_arg (ap, enum tree_code); break;
2359 /* These take a tree, which may be where the error is
2367 t = va_arg (ap, tree);
2373 errorcount = 0; /* damn ICE suppression */
2374 internal_error ("unexpected letter `%c' in locate_error\n", *f);
2380 here = va_arg (ap, tree);
2387 cp_error_at (const char *msgid, ...)
2390 diagnostic_info diagnostic;
2393 va_start (ap, msgid);
2394 here = locate_error (msgid, ap);
2397 va_start (ap, msgid);
2398 diagnostic_set_info (&diagnostic, msgid, &ap,
2399 location_of (here), DK_ERROR);
2400 report_diagnostic (&diagnostic);
2405 cp_warning_at (const char *msgid, ...)
2408 diagnostic_info diagnostic;
2411 va_start (ap, msgid);
2412 here = locate_error (msgid, ap);
2415 va_start (ap, msgid);
2416 diagnostic_set_info (&diagnostic, msgid, &ap,
2417 location_of (here), DK_WARNING);
2418 report_diagnostic (&diagnostic);
2423 cp_pedwarn_at (const char *msgid, ...)
2426 diagnostic_info diagnostic;
2429 va_start (ap, msgid);
2430 here = locate_error (msgid, ap);
2433 va_start (ap, msgid);
2434 diagnostic_set_info (&diagnostic, msgid, &ap,
2435 location_of (here), pedantic_error_kind());
2436 report_diagnostic (&diagnostic);