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 void dump_template_argument (tree, int);
74 static void dump_template_argument_list (tree, int);
75 static void dump_template_parameter (tree, int);
76 static void dump_template_bindings (tree, tree);
77 static void dump_scope (tree, int);
78 static void dump_template_parms (tree, int, int);
80 static const char *function_category (tree);
81 static void maybe_print_instantiation_context (diagnostic_context *);
82 static void print_instantiation_full_context (diagnostic_context *);
83 static void print_instantiation_partial_context (diagnostic_context *,
85 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
86 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
87 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
89 static bool cp_printer (pretty_printer *, text_info *);
90 static tree locate_error (const char *, va_list);
91 static location_t location_of (tree);
96 diagnostic_starter (global_dc) = cp_diagnostic_starter;
97 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
98 diagnostic_format_decoder (global_dc) = cp_printer;
100 pp_construct (pp_base (cxx_pp), NULL, 0);
101 pp_cxx_pretty_printer_init (cxx_pp);
104 /* Dump a scope, if deemed necessary. */
107 dump_scope (tree scope, int flags)
109 int f = ~TFF_RETURN_TYPE & (flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF));
111 if (scope == NULL_TREE)
114 if (TREE_CODE (scope) == NAMESPACE_DECL)
116 if (scope != global_namespace)
118 dump_decl (scope, f);
119 pp_cxx_colon_colon (cxx_pp);
122 else if (AGGREGATE_TYPE_P (scope))
124 dump_type (scope, f);
125 pp_cxx_colon_colon (cxx_pp);
127 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
129 dump_function_decl (scope, f);
130 pp_cxx_colon_colon (cxx_pp);
134 /* Dump the template ARGument under control of FLAGS. */
137 dump_template_argument (tree arg, int flags)
139 if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
140 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
142 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
145 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
149 dump_template_argument_list (tree args, int flags)
151 int n = TREE_VEC_LENGTH (args);
155 for (i = 0; i< n; ++i)
158 pp_separate_with_comma (cxx_pp);
159 dump_template_argument (TREE_VEC_ELT (args, i), flags);
164 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
167 dump_template_parameter (tree parm, int flags)
169 tree p = TREE_VALUE (parm);
170 tree a = TREE_PURPOSE (parm);
172 if (TREE_CODE (p) == TYPE_DECL)
174 if (flags & TFF_DECL_SPECIFIERS)
176 pp_cxx_identifier (cxx_pp, "class");
178 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
180 else if (DECL_NAME (p))
181 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
183 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
186 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
188 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
190 pp_cxx_whitespace (cxx_pp);
192 pp_cxx_whitespace (cxx_pp);
193 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
194 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
196 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
200 /* Dump, under control of FLAGS, a template-parameter-list binding.
201 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
205 dump_template_bindings (tree parms, tree args)
211 tree p = TREE_VALUE (parms);
212 int lvl = TMPL_PARMS_DEPTH (parms);
216 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
218 tree arg = NULL_TREE;
220 /* Don't crash if we had an invalid argument list. */
221 if (TMPL_ARGS_DEPTH (args) >= lvl)
223 tree lvl_args = TMPL_ARGS_LEVEL (args, lvl);
224 if (NUM_TMPL_ARGS (lvl_args) > arg_idx)
225 arg = TREE_VEC_ELT (lvl_args, arg_idx);
229 pp_separate_with_comma (cxx_pp);
230 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
231 pp_cxx_whitespace (cxx_pp);
233 pp_cxx_whitespace (cxx_pp);
235 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
237 pp_identifier (cxx_pp, "<missing>");
243 parms = TREE_CHAIN (parms);
247 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
251 dump_type (tree t, int flags)
256 if (TYPE_PTRMEMFUNC_P (t))
259 switch (TREE_CODE (t))
262 pp_identifier (cxx_pp, "<unknown type>");
266 /* A list of function parms. */
267 dump_parameters (t, flags);
270 case IDENTIFIER_NODE:
271 pp_cxx_tree_identifier (cxx_pp, t);
275 dump_type (BINFO_TYPE (t), flags);
281 dump_aggr_type (t, flags);
285 if (flags & TFF_CHASE_TYPEDEF)
287 dump_type (DECL_ORIGINAL_TYPE (t)
288 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
291 /* Else fall through. */
295 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
304 pp_type_specifier_seq (cxx_pp, t);
307 case TEMPLATE_TEMPLATE_PARM:
308 /* For parameters inside template signature. */
309 if (TYPE_IDENTIFIER (t))
310 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
312 pp_cxx_canonical_template_parameter (cxx_pp, t);
315 case BOUND_TEMPLATE_TEMPLATE_PARM:
317 tree args = TYPE_TI_ARGS (t);
318 pp_cxx_cv_qualifier_seq (cxx_pp, t);
319 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
320 pp_cxx_begin_template_argument_list (cxx_pp);
321 dump_template_argument_list (args, flags);
322 pp_cxx_end_template_argument_list (cxx_pp);
326 case TEMPLATE_TYPE_PARM:
327 pp_cxx_cv_qualifier_seq (cxx_pp, t);
328 if (TYPE_IDENTIFIER (t))
329 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
331 pp_cxx_canonical_template_parameter
332 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
335 /* This is not always necessary for pointers and such, but doing this
336 reduces code size. */
345 dump_type_prefix (t, flags);
346 dump_type_suffix (t, flags);
350 pp_cxx_cv_qualifier_seq (cxx_pp, t);
351 pp_cxx_identifier (cxx_pp, "typename");
352 dump_typename (t, flags);
355 case UNBOUND_CLASS_TEMPLATE:
356 dump_type (TYPE_CONTEXT (t), flags);
357 pp_cxx_colon_colon (cxx_pp);
358 pp_cxx_identifier (cxx_pp, "template");
359 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
363 pp_cxx_identifier (cxx_pp, "__typeof__");
364 pp_cxx_whitespace (cxx_pp);
365 pp_cxx_left_paren (cxx_pp);
366 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
367 pp_cxx_right_paren (cxx_pp);
371 pp_unsupported_tree (cxx_pp, t);
372 /* Fall through to error. */
375 pp_identifier (cxx_pp, "<type error>");
380 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
384 dump_typename (tree t, int flags)
386 tree ctx = TYPE_CONTEXT (t);
388 if (TREE_CODE (ctx) == TYPENAME_TYPE)
389 dump_typename (ctx, flags);
391 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
392 pp_cxx_colon_colon (cxx_pp);
393 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
396 /* Return the name of the supplied aggregate, or enumeral type. */
399 class_key_or_enum_as_string (tree t)
401 if (TREE_CODE (t) == ENUMERAL_TYPE)
403 else if (TREE_CODE (t) == UNION_TYPE)
405 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
411 /* Print out a class declaration T under the control of FLAGS,
412 in the form `class foo'. */
415 dump_aggr_type (tree t, int flags)
418 const char *variety = class_key_or_enum_as_string (t);
422 pp_cxx_cv_qualifier_seq (cxx_pp, t);
424 if (flags & TFF_CLASS_KEY_OR_ENUM)
425 pp_cxx_identifier (cxx_pp, variety);
427 if (flags & TFF_CHASE_TYPEDEF)
428 t = TYPE_MAIN_VARIANT (t);
430 name = TYPE_NAME (t);
434 typdef = !DECL_ARTIFICIAL (name);
435 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
436 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
437 && (CLASSTYPE_TEMPLATE_SPECIALIZATION (t)
438 || TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
439 || DECL_TEMPLATE_SPECIALIZATION (CLASSTYPE_TI_TEMPLATE (t))
440 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
441 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
444 /* Because the template names are mangled, we have to locate
445 the most general template, and use that name. */
446 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
448 while (DECL_TEMPLATE_INFO (tpl))
449 tpl = DECL_TI_TEMPLATE (tpl);
452 name = DECL_NAME (name);
455 if (name == 0 || ANON_AGGRNAME_P (name))
457 if (flags & TFF_CLASS_KEY_OR_ENUM)
458 pp_identifier (cxx_pp, "<anonymous>");
460 pp_printf (pp_base (cxx_pp), "<anonymous %s>", variety);
463 pp_cxx_tree_identifier (cxx_pp, name);
465 dump_template_parms (TYPE_TEMPLATE_INFO (t),
466 !CLASSTYPE_USE_TEMPLATE (t),
467 flags & ~TFF_TEMPLATE_HEADER);
470 /* Dump into the obstack the initial part of the output for a given type.
471 This is necessary when dealing with things like functions returning
474 return type of `int (* fee ())()': pointer -> function -> int. Both
475 pointer (and reference and offset) and function (and member) types must
476 deal with prefix and suffix.
478 Arrays must also do this for DECL nodes, like int a[], and for things like
482 dump_type_prefix (tree t, int flags)
484 if (TYPE_PTRMEMFUNC_P (t))
486 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
490 switch (TREE_CODE (t))
495 tree sub = TREE_TYPE (t);
497 dump_type_prefix (sub, flags);
498 if (TREE_CODE (sub) == ARRAY_TYPE)
500 pp_cxx_whitespace (cxx_pp);
501 pp_cxx_left_paren (cxx_pp);
503 pp_character (cxx_pp, "&*"[TREE_CODE (t) == POINTER_TYPE]);
504 pp_base (cxx_pp)->padding = pp_before;
505 pp_cxx_cv_qualifier_seq (cxx_pp, t);
511 dump_type_prefix (TREE_TYPE (t), flags);
512 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
514 pp_maybe_space (cxx_pp);
515 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
516 pp_cxx_left_paren (cxx_pp);
517 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
518 pp_cxx_colon_colon (cxx_pp);
520 pp_cxx_star (cxx_pp);
521 pp_cxx_cv_qualifier_seq (cxx_pp, t);
522 pp_base (cxx_pp)->padding = pp_before;
525 /* Can only be reached through function pointer -- this would not be
526 correct if FUNCTION_DECLs used it. */
528 dump_type_prefix (TREE_TYPE (t), flags);
529 pp_maybe_space (cxx_pp);
530 pp_cxx_left_paren (cxx_pp);
534 dump_type_prefix (TREE_TYPE (t), flags);
535 pp_maybe_space (cxx_pp);
536 pp_cxx_left_paren (cxx_pp);
537 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
538 pp_cxx_colon_colon (cxx_pp);
542 dump_type_prefix (TREE_TYPE (t), flags);
546 case IDENTIFIER_NODE:
551 case TEMPLATE_TYPE_PARM:
552 case TEMPLATE_TEMPLATE_PARM:
553 case BOUND_TEMPLATE_TEMPLATE_PARM:
564 dump_type (t, flags);
565 pp_base (cxx_pp)->padding = pp_before;
569 pp_unsupported_tree (cxx_pp, t);
572 pp_identifier (cxx_pp, "<typeprefixerror>");
577 /* Dump the suffix of type T, under control of FLAGS. This is the part
578 which appears after the identifier (or function parms). */
581 dump_type_suffix (tree t, int flags)
583 if (TYPE_PTRMEMFUNC_P (t))
584 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
586 switch (TREE_CODE (t))
591 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
592 pp_cxx_right_paren (cxx_pp);
593 dump_type_suffix (TREE_TYPE (t), flags);
596 /* Can only be reached through function pointer. */
601 pp_cxx_right_paren (cxx_pp);
602 arg = TYPE_ARG_TYPES (t);
603 if (TREE_CODE (t) == METHOD_TYPE)
604 arg = TREE_CHAIN (arg);
606 /* Function pointers don't have default args. Not in standard C++,
607 anyway; they may in g++, but we'll just pretend otherwise. */
608 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
610 if (TREE_CODE (t) == METHOD_TYPE)
611 pp_cxx_cv_qualifier_seq
612 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
613 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
614 dump_type_suffix (TREE_TYPE (t), flags);
619 pp_maybe_space (cxx_pp);
620 pp_cxx_left_bracket (cxx_pp);
623 if (host_integerp (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0))
625 (cxx_pp, tree_low_cst (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0) + 1);
626 else if (TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (t))) == MINUS_EXPR)
627 dump_expr (TREE_OPERAND (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0),
628 flags & ~TFF_EXPR_IN_PARENS);
630 dump_expr (fold (cp_build_binary_op
631 (PLUS_EXPR, TYPE_MAX_VALUE (TYPE_DOMAIN (t)),
633 flags & ~TFF_EXPR_IN_PARENS);
635 pp_cxx_right_bracket (cxx_pp);
636 dump_type_suffix (TREE_TYPE (t), flags);
640 case IDENTIFIER_NODE:
645 case TEMPLATE_TYPE_PARM:
646 case TEMPLATE_TEMPLATE_PARM:
647 case BOUND_TEMPLATE_TEMPLATE_PARM:
661 pp_unsupported_tree (cxx_pp, t);
663 /* Don't mark it here, we should have already done in
670 dump_global_iord (tree t)
672 const char *p = NULL;
674 if (DECL_GLOBAL_CTOR_P (t))
676 else if (DECL_GLOBAL_DTOR_P (t))
681 pp_printf (pp_base (cxx_pp), "(static %s for %s)", p, input_filename);
685 dump_simple_decl (tree t, tree type, int flags)
687 if (flags & TFF_DECL_SPECIFIERS)
689 dump_type_prefix (type, flags);
690 pp_maybe_space (cxx_pp);
692 if (!DECL_INITIAL (t) || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX)
693 dump_scope (CP_DECL_CONTEXT (t), flags);
695 dump_decl (DECL_NAME (t), flags);
697 pp_identifier (cxx_pp, "<anonymous>");
698 if (flags & TFF_DECL_SPECIFIERS)
699 dump_type_suffix (type, flags);
702 /* Dump a human readable string for the decl T under control of FLAGS. */
705 dump_decl (tree t, int flags)
710 switch (TREE_CODE (t))
714 /* Don't say 'typedef class A' */
715 if (DECL_ARTIFICIAL (t))
717 if ((flags & TFF_DECL_SPECIFIERS)
718 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
719 /* Say `class T' not just `T'. */
720 pp_cxx_identifier (cxx_pp, "class");
722 dump_type (TREE_TYPE (t), flags);
726 if (flags & TFF_DECL_SPECIFIERS)
727 pp_cxx_identifier (cxx_pp, "typedef");
728 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
729 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
734 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
736 pp_string (cxx_pp, "vtable for ");
737 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
738 dump_type (DECL_CONTEXT (t), flags);
741 /* Else fall through. */
745 dump_simple_decl (t, TREE_TYPE (t), flags);
749 pp_string (cxx_pp, "<return value> ");
750 dump_simple_decl (t, TREE_TYPE (t), flags);
754 if (flags & TFF_DECL_SPECIFIERS)
755 pp_cxx_declaration (cxx_pp, t);
758 dump_scope (CP_DECL_CONTEXT (t), flags);
759 if (DECL_NAME (t) == NULL_TREE)
760 pp_identifier (cxx_pp, "<unnamed>");
762 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
767 pp_expression (cxx_pp, t);
771 dump_decl (TREE_OPERAND (t, 0), flags);
772 pp_cxx_left_bracket (cxx_pp);
773 dump_decl (TREE_OPERAND (t, 1), flags);
774 pp_cxx_right_bracket (cxx_pp);
777 /* So that we can do dump_decl on an aggr type. */
781 dump_type (t, flags);
785 /* This is a pseudo destructor call which has not been folded into
786 a PSEUDO_DTOR_EXPR yet. */
787 pp_cxx_complement (cxx_pp);
788 dump_type (TREE_OPERAND (t, 0), flags);
795 /* These special cases are duplicated here so that other functions
796 can feed identifiers to error and get them demangled properly. */
797 case IDENTIFIER_NODE:
798 if (IDENTIFIER_TYPENAME_P (t))
800 pp_cxx_identifier (cxx_pp, "operator");
801 /* Not exactly IDENTIFIER_TYPE_VALUE. */
802 dump_type (TREE_TYPE (t), flags);
806 pp_cxx_tree_identifier (cxx_pp, t);
813 if (DECL_CLASS_SCOPE_P (t))
815 dump_type (DECL_CONTEXT (t), flags);
816 pp_cxx_colon_colon (cxx_pp);
818 else if (DECL_CONTEXT (t))
820 dump_decl (DECL_CONTEXT (t), flags);
821 pp_cxx_colon_colon (cxx_pp);
823 dump_decl (DECL_NAME (t), flags);
827 /* If there's only one function, just treat it like an ordinary
833 if (! DECL_LANG_SPECIFIC (t))
834 pp_identifier (cxx_pp, "<built-in>");
835 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
836 dump_global_iord (t);
838 dump_function_decl (t, flags);
842 dump_template_decl (t, flags);
845 case TEMPLATE_ID_EXPR:
847 tree name = TREE_OPERAND (t, 0);
849 if (is_overloaded_fn (name))
850 name = DECL_NAME (get_first_fn (name));
851 dump_decl (name, flags);
852 pp_cxx_begin_template_argument_list (cxx_pp);
853 if (TREE_OPERAND (t, 1))
854 dump_template_argument_list (TREE_OPERAND (t, 1), flags);
855 pp_cxx_end_template_argument_list (cxx_pp);
860 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
864 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
865 || (DECL_INITIAL (t) &&
866 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
867 dump_simple_decl (t, TREE_TYPE (t), flags);
868 else if (DECL_NAME (t))
869 dump_decl (DECL_NAME (t), flags);
870 else if (DECL_INITIAL (t))
871 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
873 pp_identifier (cxx_pp, "<enumerator>");
877 pp_cxx_identifier (cxx_pp, "using");
878 dump_type (DECL_INITIAL (t), flags);
879 pp_cxx_colon_colon (cxx_pp);
880 dump_decl (DECL_NAME (t), flags);
884 dump_decl (BASELINK_FUNCTIONS (t), flags);
887 case NON_DEPENDENT_EXPR:
888 dump_expr (t, flags);
891 case TEMPLATE_TYPE_PARM:
892 if (flags & TFF_DECL_SPECIFIERS)
893 pp_cxx_declaration (cxx_pp, t);
895 pp_type_id (cxx_pp, t);
899 pp_unsupported_tree (cxx_pp, t);
900 /* Fall through to error. */
903 pp_identifier (cxx_pp, "<declaration error>");
908 /* Dump a template declaration T under control of FLAGS. This means the
909 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
912 dump_template_decl (tree t, int flags)
914 tree orig_parms = DECL_TEMPLATE_PARMS (t);
918 if (flags & TFF_TEMPLATE_HEADER)
920 for (parms = orig_parms = nreverse (orig_parms);
922 parms = TREE_CHAIN (parms))
924 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
925 int len = TREE_VEC_LENGTH (inner_parms);
927 pp_cxx_identifier (cxx_pp, "template");
928 pp_cxx_begin_template_argument_list (cxx_pp);
930 /* If we've shown the template prefix, we'd better show the
931 parameters' and decl's type too. */
932 flags |= TFF_DECL_SPECIFIERS;
934 for (i = 0; i < len; i++)
937 pp_separate_with_comma (cxx_pp);
938 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
940 pp_cxx_end_template_argument_list (cxx_pp);
941 pp_cxx_whitespace (cxx_pp);
943 nreverse(orig_parms);
945 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
946 /* Say `template<arg> class TT' not just `template<arg> TT'. */
947 pp_cxx_identifier (cxx_pp, "class");
950 if (TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
951 dump_type (TREE_TYPE (t),
952 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
953 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
954 else if (TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
955 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
958 gcc_assert (TREE_TYPE (t));
959 switch (NEXT_CODE (t))
963 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
966 /* This case can occur with some invalid code. */
967 dump_type (TREE_TYPE (t),
968 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
969 | (flags & TFF_DECL_SPECIFIERS
970 ? TFF_CLASS_KEY_OR_ENUM : 0));
975 /* Pretty print a function decl. There are several ways we want to print a
976 function declaration. The TFF_ bits in FLAGS tells us how to behave.
977 As error can only apply the '#' flag once to give 0 and 1 for V, there
978 is %D which doesn't print the throw specs, and %F which does. */
981 dump_function_decl (tree t, int flags)
985 tree cname = NULL_TREE;
986 tree template_args = NULL_TREE;
987 tree template_parms = NULL_TREE;
988 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
990 if (TREE_CODE (t) == TEMPLATE_DECL)
991 t = DECL_TEMPLATE_RESULT (t);
993 /* Pretty print template instantiations only. */
994 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t))
998 template_args = DECL_TI_ARGS (t);
999 tmpl = most_general_template (t);
1000 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1002 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1007 fntype = TREE_TYPE (t);
1008 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1010 if (DECL_CLASS_SCOPE_P (t))
1011 cname = DECL_CONTEXT (t);
1012 /* This is for partially instantiated template methods. */
1013 else if (TREE_CODE (fntype) == METHOD_TYPE)
1014 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1016 if (!(flags & TFF_DECL_SPECIFIERS))
1018 else if (DECL_STATIC_FUNCTION_P (t))
1019 pp_cxx_identifier (cxx_pp, "static");
1020 else if (DECL_VIRTUAL_P (t))
1021 pp_cxx_identifier (cxx_pp, "virtual");
1023 /* Print the return type? */
1025 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1026 && !DECL_DESTRUCTOR_P (t);
1028 dump_type_prefix (TREE_TYPE (fntype), flags);
1030 /* Print the function name. */
1033 dump_type (cname, flags);
1034 pp_cxx_colon_colon (cxx_pp);
1037 dump_scope (CP_DECL_CONTEXT (t), flags);
1039 dump_function_name (t, flags);
1041 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1043 dump_parameters (parmtypes, flags);
1045 if (TREE_CODE (fntype) == METHOD_TYPE)
1047 pp_base (cxx_pp)->padding = pp_before;
1048 pp_cxx_cv_qualifier_seq
1049 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1052 if (flags & TFF_EXCEPTION_SPECIFICATION)
1054 pp_base (cxx_pp)->padding = pp_before;
1055 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (fntype), flags);
1059 dump_type_suffix (TREE_TYPE (fntype), flags);
1062 /* If T is a template instantiation, dump the parameter binding. */
1063 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1065 pp_cxx_whitespace (cxx_pp);
1066 pp_cxx_left_bracket (cxx_pp);
1067 pp_cxx_identifier (cxx_pp, "with");
1068 pp_cxx_whitespace (cxx_pp);
1069 dump_template_bindings (template_parms, template_args);
1070 pp_cxx_right_bracket (cxx_pp);
1074 /* Print a parameter list. If this is for a member function, the
1075 member object ptr (and any other hidden args) should have
1076 already been removed. */
1079 dump_parameters (tree parmtypes, int flags)
1083 pp_cxx_left_paren (cxx_pp);
1085 for (first = 1; parmtypes != void_list_node;
1086 parmtypes = TREE_CHAIN (parmtypes))
1089 pp_separate_with_comma (cxx_pp);
1093 pp_cxx_identifier (cxx_pp, "...");
1096 dump_type (TREE_VALUE (parmtypes), flags);
1098 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1100 pp_cxx_whitespace (cxx_pp);
1102 pp_cxx_whitespace (cxx_pp);
1103 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1107 pp_cxx_right_paren (cxx_pp);
1110 /* Print an exception specification. T is the exception specification. */
1113 dump_exception_spec (tree t, int flags)
1117 pp_cxx_identifier (cxx_pp, "throw");
1118 pp_cxx_whitespace (cxx_pp);
1119 pp_cxx_left_paren (cxx_pp);
1120 if (TREE_VALUE (t) != NULL_TREE)
1123 dump_type (TREE_VALUE (t), flags);
1127 pp_separate_with_comma (cxx_pp);
1129 pp_cxx_right_paren (cxx_pp);
1133 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1134 and destructors properly. */
1137 dump_function_name (tree t, int flags)
1139 tree name = DECL_NAME (t);
1141 /* We can get here with a decl that was synthesized by language-
1142 independent machinery (e.g. coverage.c) in which case it won't
1143 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1144 will crash. In this case it is safe just to print out the
1146 if (!DECL_LANG_SPECIFIC (t))
1148 pp_cxx_tree_identifier (cxx_pp, name);
1152 if (TREE_CODE (t) == TEMPLATE_DECL)
1153 t = DECL_TEMPLATE_RESULT (t);
1155 /* Don't let the user see __comp_ctor et al. */
1156 if (DECL_CONSTRUCTOR_P (t)
1157 || DECL_DESTRUCTOR_P (t))
1158 name = constructor_name (DECL_CONTEXT (t));
1160 if (DECL_DESTRUCTOR_P (t))
1162 pp_cxx_complement (cxx_pp);
1163 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1165 else if (DECL_CONV_FN_P (t))
1167 /* This cannot use the hack that the operator's return
1168 type is stashed off of its name because it may be
1169 used for error reporting. In the case of conflicting
1170 declarations, both will have the same name, yet
1171 the types will be different, hence the TREE_TYPE field
1172 of the first name will be clobbered by the second. */
1173 pp_cxx_identifier (cxx_pp, "operator");
1174 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1176 else if (IDENTIFIER_OPNAME_P (name))
1177 pp_cxx_tree_identifier (cxx_pp, name);
1179 dump_decl (name, flags);
1181 if (DECL_TEMPLATE_INFO (t)
1182 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1183 && (DECL_TEMPLATE_SPECIALIZATION (t)
1184 || TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1185 || DECL_TEMPLATE_SPECIALIZATION (DECL_TI_TEMPLATE (t))
1186 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1187 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1190 /* Dump the template parameters from the template info INFO under control of
1191 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1192 specialization (partial or complete). For partial specializations we show
1193 the specialized parameter values. For a primary template we show no
1197 dump_template_parms (tree info, int primary, int flags)
1199 tree args = info ? TI_ARGS (info) : NULL_TREE;
1201 if (primary && flags & TFF_TEMPLATE_NAME)
1203 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1204 pp_cxx_begin_template_argument_list (cxx_pp);
1206 /* Be careful only to print things when we have them, so as not
1207 to crash producing error messages. */
1208 if (args && !primary)
1212 if (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (args))
1213 args = TREE_VEC_ELT (args, TREE_VEC_LENGTH (args) - 1);
1215 len = TREE_VEC_LENGTH (args);
1217 for (ix = 0; ix != len; ix++)
1219 tree arg = TREE_VEC_ELT (args, ix);
1222 pp_separate_with_comma (cxx_pp);
1225 pp_identifier (cxx_pp, "<template parameter error>");
1227 dump_template_argument (arg, flags);
1232 tree tpl = TI_TEMPLATE (info);
1233 tree parms = DECL_TEMPLATE_PARMS (tpl);
1236 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1237 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1239 for (ix = 0; ix != len; ix++)
1241 tree parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1244 pp_separate_with_comma (cxx_pp);
1246 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1249 pp_cxx_end_template_argument_list (cxx_pp);
1252 /* Print out a list of initializers (subr of dump_expr). */
1255 dump_expr_list (tree l, int flags)
1259 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1262 pp_separate_with_comma (cxx_pp);
1266 /* Print out an expression E under control of FLAGS. */
1269 dump_expr (tree t, int flags)
1274 switch (TREE_CODE (t))
1282 case NAMESPACE_DECL:
1284 case IDENTIFIER_NODE:
1285 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1291 pp_c_constant (pp_c_base (cxx_pp), t);
1295 pp_cxx_identifier (cxx_pp, "throw");
1296 dump_expr (TREE_OPERAND (t, 0), flags);
1300 pp_ampersand (cxx_pp);
1301 dump_type (PTRMEM_CST_CLASS (t), flags);
1302 pp_cxx_colon_colon (cxx_pp);
1303 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1307 pp_cxx_left_paren (cxx_pp);
1308 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1309 pp_separate_with_comma (cxx_pp);
1310 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1311 pp_cxx_right_paren (cxx_pp);
1315 pp_cxx_left_paren (cxx_pp);
1316 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1317 pp_string (cxx_pp, " ? ");
1318 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1319 pp_string (cxx_pp, " : ");
1320 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1321 pp_cxx_right_paren (cxx_pp);
1325 if (TREE_HAS_CONSTRUCTOR (t))
1327 pp_cxx_identifier (cxx_pp, "new");
1328 pp_cxx_whitespace (cxx_pp);
1329 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1332 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1335 case AGGR_INIT_EXPR:
1337 tree fn = NULL_TREE;
1339 if (TREE_CODE (TREE_OPERAND (t, 0)) == ADDR_EXPR)
1340 fn = TREE_OPERAND (TREE_OPERAND (t, 0), 0);
1342 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1344 if (DECL_CONSTRUCTOR_P (fn))
1345 dump_type (DECL_CONTEXT (fn), flags);
1350 dump_expr (TREE_OPERAND (t, 0), 0);
1352 pp_cxx_left_paren (cxx_pp);
1353 if (TREE_OPERAND (t, 1))
1354 dump_expr_list (TREE_CHAIN (TREE_OPERAND (t, 1)), flags);
1355 pp_cxx_right_paren (cxx_pp);
1360 tree fn = TREE_OPERAND (t, 0);
1361 tree args = TREE_OPERAND (t, 1);
1363 if (TREE_CODE (fn) == ADDR_EXPR)
1364 fn = TREE_OPERAND (fn, 0);
1366 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1368 tree ob = TREE_VALUE (args);
1369 if (TREE_CODE (ob) == ADDR_EXPR)
1371 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1374 else if (TREE_CODE (ob) != PARM_DECL
1375 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1377 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1380 args = TREE_CHAIN (args);
1382 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1383 pp_cxx_left_paren (cxx_pp);
1384 dump_expr_list (args, flags);
1385 pp_cxx_right_paren (cxx_pp);
1391 tree type = TREE_OPERAND (t, 1);
1392 tree init = TREE_OPERAND (t, 2);
1393 if (NEW_EXPR_USE_GLOBAL (t))
1394 pp_cxx_colon_colon (cxx_pp);
1395 pp_cxx_identifier (cxx_pp, "new");
1396 if (TREE_OPERAND (t, 0))
1398 pp_cxx_left_paren (cxx_pp);
1399 dump_expr_list (TREE_OPERAND (t, 0), flags);
1400 pp_cxx_right_paren (cxx_pp);
1401 pp_cxx_whitespace (cxx_pp);
1403 if (TREE_CODE (type) == ARRAY_REF)
1404 type = build_cplus_array_type
1405 (TREE_OPERAND (type, 0),
1406 build_index_type (fold (build2 (MINUS_EXPR, integer_type_node,
1407 TREE_OPERAND (type, 1),
1408 integer_one_node))));
1409 dump_type (type, flags);
1412 pp_cxx_left_paren (cxx_pp);
1413 if (TREE_CODE (init) == TREE_LIST)
1414 dump_expr_list (init, flags);
1415 else if (init == void_zero_node)
1416 /* This representation indicates an empty initializer,
1417 e.g.: "new int()". */
1420 dump_expr (init, flags);
1421 pp_cxx_right_paren (cxx_pp);
1427 /* Note that this only works for G++ target exprs. If somebody
1428 builds a general TARGET_EXPR, there's no way to represent that
1429 it initializes anything other that the parameter slot for the
1430 default argument. Note we may have cleared out the first
1431 operand in expand_expr, so don't go killing ourselves. */
1432 if (TREE_OPERAND (t, 1))
1433 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1441 case TRUNC_DIV_EXPR:
1442 case TRUNC_MOD_EXPR:
1450 case TRUTH_ANDIF_EXPR:
1451 case TRUTH_ORIF_EXPR:
1458 case EXACT_DIV_EXPR:
1459 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1463 case FLOOR_DIV_EXPR:
1464 case ROUND_DIV_EXPR:
1466 dump_binary_op ("/", t, flags);
1470 case FLOOR_MOD_EXPR:
1471 case ROUND_MOD_EXPR:
1472 dump_binary_op ("%", t, flags);
1477 tree ob = TREE_OPERAND (t, 0);
1478 if (TREE_CODE (ob) == INDIRECT_REF)
1480 ob = TREE_OPERAND (ob, 0);
1481 if (TREE_CODE (ob) != PARM_DECL
1482 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1484 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1485 pp_cxx_arrow (cxx_pp);
1490 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1491 pp_cxx_dot (cxx_pp);
1493 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1498 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1499 pp_cxx_left_bracket (cxx_pp);
1500 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1501 pp_cxx_right_bracket (cxx_pp);
1505 if (TREE_TYPE (t) && VOID_TYPE_P (TREE_TYPE (t)))
1507 pp_cxx_left_paren (cxx_pp);
1508 dump_type (TREE_TYPE (t), flags);
1509 pp_cxx_right_paren (cxx_pp);
1510 dump_expr (TREE_OPERAND (t, 0), flags);
1513 dump_unary_op ("+", t, flags);
1517 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1518 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1519 /* An ADDR_EXPR can have reference type. In that case, we
1520 shouldn't print the `&' doing so indicates to the user
1521 that the expression has pointer type. */
1523 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1524 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1526 dump_unary_op ("&", t, flags);
1530 if (TREE_HAS_CONSTRUCTOR (t))
1532 t = TREE_OPERAND (t, 0);
1533 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1534 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1535 pp_cxx_left_paren (cxx_pp);
1536 dump_expr_list (TREE_CHAIN (TREE_OPERAND (t, 1)), flags);
1537 pp_cxx_right_paren (cxx_pp);
1541 if (TREE_OPERAND (t,0) != NULL_TREE
1542 && TREE_TYPE (TREE_OPERAND (t, 0))
1543 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1544 dump_expr (TREE_OPERAND (t, 0), flags);
1546 dump_unary_op ("*", t, flags);
1552 case TRUTH_NOT_EXPR:
1553 case PREDECREMENT_EXPR:
1554 case PREINCREMENT_EXPR:
1555 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1558 case POSTDECREMENT_EXPR:
1559 case POSTINCREMENT_EXPR:
1560 pp_cxx_left_paren (cxx_pp);
1561 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1562 pp_cxx_identifier (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1563 pp_cxx_right_paren (cxx_pp);
1566 case NON_LVALUE_EXPR:
1567 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1568 should be another level of INDIRECT_REF so that I don't have to do
1570 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1572 tree next = TREE_TYPE (TREE_TYPE (t));
1574 while (TREE_CODE (next) == POINTER_TYPE)
1575 next = TREE_TYPE (next);
1577 if (TREE_CODE (next) == FUNCTION_TYPE)
1579 if (flags & TFF_EXPR_IN_PARENS)
1580 pp_cxx_left_paren (cxx_pp);
1581 pp_cxx_star (cxx_pp);
1582 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1583 if (flags & TFF_EXPR_IN_PARENS)
1584 pp_cxx_right_paren (cxx_pp);
1587 /* Else fall through. */
1589 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1594 tree op = TREE_OPERAND (t, 0);
1596 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1598 /* It is a cast, but we cannot tell whether it is a
1599 reinterpret or static cast. Use the C style notation. */
1600 if (flags & TFF_EXPR_IN_PARENS)
1601 pp_cxx_left_paren (cxx_pp);
1602 pp_cxx_left_paren (cxx_pp);
1603 dump_type (TREE_TYPE (t), flags);
1604 pp_cxx_right_paren (cxx_pp);
1605 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1606 if (flags & TFF_EXPR_IN_PARENS)
1607 pp_cxx_right_paren (cxx_pp);
1610 dump_expr (op, flags);
1615 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1617 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1619 if (integer_zerop (idx))
1621 /* A NULL pointer-to-member constant. */
1622 pp_cxx_left_paren (cxx_pp);
1623 pp_cxx_left_paren (cxx_pp);
1624 dump_type (TREE_TYPE (t), flags);
1625 pp_cxx_right_paren (cxx_pp);
1626 pp_character (cxx_pp, '0');
1627 pp_cxx_right_paren (cxx_pp);
1630 else if (host_integerp (idx, 0))
1633 unsigned HOST_WIDE_INT n;
1635 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1636 t = TYPE_METHOD_BASETYPE (t);
1637 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1639 n = tree_low_cst (idx, 0);
1641 /* Map vtable index back one, to allow for the null pointer to
1645 while (n > 0 && virtuals)
1648 virtuals = TREE_CHAIN (virtuals);
1652 dump_expr (BV_FN (virtuals),
1653 flags | TFF_EXPR_IN_PARENS);
1658 if (TREE_TYPE (t) && !CONSTRUCTOR_ELTS (t))
1660 dump_type (TREE_TYPE (t), 0);
1661 pp_cxx_left_paren (cxx_pp);
1662 pp_cxx_right_paren (cxx_pp);
1666 pp_cxx_left_brace (cxx_pp);
1667 dump_expr_list (CONSTRUCTOR_ELTS (t), flags);
1668 pp_cxx_right_brace (cxx_pp);
1675 tree ob = TREE_OPERAND (t, 0);
1676 if (is_dummy_object (ob))
1678 t = TREE_OPERAND (t, 1);
1679 if (TREE_CODE (t) == FUNCTION_DECL)
1681 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
1682 else if (BASELINK_P (t))
1683 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
1684 flags | TFF_EXPR_IN_PARENS);
1686 dump_decl (t, flags);
1690 if (TREE_CODE (ob) == INDIRECT_REF)
1692 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1693 pp_cxx_arrow (cxx_pp);
1694 pp_cxx_star (cxx_pp);
1698 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1699 pp_cxx_dot (cxx_pp);
1700 pp_cxx_star (cxx_pp);
1702 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1707 case TEMPLATE_PARM_INDEX:
1708 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
1712 pp_expression (cxx_pp, t);
1716 if (TREE_OPERAND (t, 0) == NULL_TREE
1717 || TREE_CHAIN (TREE_OPERAND (t, 0)))
1719 dump_type (TREE_TYPE (t), flags);
1720 pp_cxx_left_paren (cxx_pp);
1721 dump_expr_list (TREE_OPERAND (t, 0), flags);
1722 pp_cxx_right_paren (cxx_pp);
1726 pp_cxx_left_paren (cxx_pp);
1727 dump_type (TREE_TYPE (t), flags);
1728 pp_cxx_right_paren (cxx_pp);
1729 pp_cxx_left_paren (cxx_pp);
1730 dump_expr_list (TREE_OPERAND (t, 0), flags);
1731 pp_cxx_right_paren (cxx_pp);
1735 case STATIC_CAST_EXPR:
1736 pp_cxx_identifier (cxx_pp, "static_cast");
1738 case REINTERPRET_CAST_EXPR:
1739 pp_cxx_identifier (cxx_pp, "reinterpret_cast");
1741 case CONST_CAST_EXPR:
1742 pp_cxx_identifier (cxx_pp, "const_cast");
1744 case DYNAMIC_CAST_EXPR:
1745 pp_cxx_identifier (cxx_pp, "dynamic_cast");
1747 pp_cxx_begin_template_argument_list (cxx_pp);
1748 dump_type (TREE_TYPE (t), flags);
1749 pp_cxx_end_template_argument_list (cxx_pp);
1750 pp_cxx_left_paren (cxx_pp);
1751 dump_expr (TREE_OPERAND (t, 0), flags);
1752 pp_cxx_right_paren (cxx_pp);
1756 dump_expr (TREE_OPERAND (t, 0), flags);
1757 pp_cxx_arrow (cxx_pp);
1762 if (TREE_CODE (t) == SIZEOF_EXPR)
1763 pp_cxx_identifier (cxx_pp, "sizeof");
1766 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
1767 pp_cxx_identifier (cxx_pp, "__alignof__");
1769 pp_cxx_whitespace (cxx_pp);
1770 pp_cxx_left_paren (cxx_pp);
1771 if (TYPE_P (TREE_OPERAND (t, 0)))
1772 dump_type (TREE_OPERAND (t, 0), flags);
1774 dump_expr (TREE_OPERAND (t, 0), flags);
1775 pp_cxx_right_paren (cxx_pp);
1780 pp_cxx_identifier (cxx_pp, operator_name_info[TREE_CODE (t)].name);
1781 pp_cxx_whitespace (cxx_pp);
1782 dump_expr (TREE_OPERAND (t, 0), flags);
1786 pp_identifier (cxx_pp, "<unparsed>");
1789 case TRY_CATCH_EXPR:
1790 case WITH_CLEANUP_EXPR:
1791 case CLEANUP_POINT_EXPR:
1792 dump_expr (TREE_OPERAND (t, 0), flags);
1795 case PSEUDO_DTOR_EXPR:
1796 dump_expr (TREE_OPERAND (t, 2), flags);
1797 pp_cxx_dot (cxx_pp);
1798 dump_type (TREE_OPERAND (t, 0), flags);
1799 pp_cxx_colon_colon (cxx_pp);
1800 pp_cxx_complement (cxx_pp);
1801 dump_type (TREE_OPERAND (t, 1), flags);
1804 case TEMPLATE_ID_EXPR:
1805 dump_decl (t, flags);
1809 /* We don't yet have a way of dumping statements in a
1810 human-readable format. */
1811 pp_string (cxx_pp, "({...})");
1815 pp_cxx_left_brace (cxx_pp);
1816 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1817 pp_cxx_right_brace (cxx_pp);
1821 pp_string (cxx_pp, "while (1) { ");
1822 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1823 pp_cxx_right_brace (cxx_pp);
1827 pp_string (cxx_pp, "if (");
1828 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1829 pp_string (cxx_pp, ") break; ");
1833 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
1836 case EMPTY_CLASS_EXPR:
1837 dump_type (TREE_TYPE (t), flags);
1838 pp_cxx_left_paren (cxx_pp);
1839 pp_cxx_right_paren (cxx_pp);
1842 case NON_DEPENDENT_EXPR:
1843 dump_expr (TREE_OPERAND (t, 0), flags);
1846 /* This list is incomplete, but should suffice for now.
1847 It is very important that `sorry' does not call
1848 `report_error_function'. That could cause an infinite loop. */
1850 pp_unsupported_tree (cxx_pp, t);
1851 /* fall through to ERROR_MARK... */
1853 pp_identifier (cxx_pp, "<expression error>");
1859 dump_binary_op (const char *opstring, tree t, int flags)
1861 pp_cxx_left_paren (cxx_pp);
1862 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1863 pp_cxx_whitespace (cxx_pp);
1865 pp_cxx_identifier (cxx_pp, opstring);
1867 pp_identifier (cxx_pp, "<unknown operator>");
1868 pp_cxx_whitespace (cxx_pp);
1869 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1870 pp_cxx_right_paren (cxx_pp);
1874 dump_unary_op (const char *opstring, tree t, int flags)
1876 if (flags & TFF_EXPR_IN_PARENS)
1877 pp_cxx_left_paren (cxx_pp);
1878 pp_cxx_identifier (cxx_pp, opstring);
1879 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1880 if (flags & TFF_EXPR_IN_PARENS)
1881 pp_cxx_right_paren (cxx_pp);
1885 reinit_cxx_pp (void)
1887 pp_clear_output_area (cxx_pp);
1888 pp_base (cxx_pp)->padding = pp_none;
1889 pp_indentation (cxx_pp) = 0;
1890 pp_needs_newline (cxx_pp) = false;
1891 cxx_pp->enclosing_scope = 0;
1895 /* Exported interface to stringifying types, exprs and decls under TFF_*
1899 type_as_string (tree typ, int flags)
1902 dump_type (typ, flags);
1903 return pp_formatted_text (cxx_pp);
1907 expr_as_string (tree decl, int flags)
1910 dump_expr (decl, flags);
1911 return pp_formatted_text (cxx_pp);
1915 decl_as_string (tree decl, int flags)
1918 dump_decl (decl, flags);
1919 return pp_formatted_text (cxx_pp);
1923 context_as_string (tree context, int flags)
1926 dump_scope (context, flags);
1927 return pp_formatted_text (cxx_pp);
1930 /* Generate the three forms of printable names for cxx_printable_name. */
1933 lang_decl_name (tree decl, int v)
1936 return decl_as_string (decl, TFF_DECL_SPECIFIERS);
1939 if (v == 1 && DECL_CLASS_SCOPE_P (decl))
1941 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
1942 pp_cxx_colon_colon (cxx_pp);
1945 if (TREE_CODE (decl) == FUNCTION_DECL)
1946 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
1948 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
1950 return pp_formatted_text (cxx_pp);
1954 location_of (tree t)
1956 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
1957 t = DECL_CONTEXT (t);
1958 else if (TYPE_P (t))
1959 t = TYPE_MAIN_DECL (t);
1960 else if (TREE_CODE (t) == OVERLOAD)
1961 t = OVL_FUNCTION (t);
1963 return DECL_SOURCE_LOCATION (t);
1966 /* Now the interfaces from error et al to dump_type et al. Each takes an
1967 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
1971 decl_to_string (tree decl, int verbose)
1975 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
1976 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
1977 flags = TFF_CLASS_KEY_OR_ENUM;
1979 flags |= TFF_DECL_SPECIFIERS;
1980 else if (TREE_CODE (decl) == FUNCTION_DECL)
1981 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
1982 flags |= TFF_TEMPLATE_HEADER;
1985 dump_decl (decl, flags);
1986 return pp_formatted_text (cxx_pp);
1990 expr_to_string (tree decl)
1993 dump_expr (decl, 0);
1994 return pp_formatted_text (cxx_pp);
1998 fndecl_to_string (tree fndecl, int verbose)
2002 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS;
2004 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2006 dump_decl (fndecl, flags);
2007 return pp_formatted_text (cxx_pp);
2012 code_to_string (enum tree_code c)
2014 return tree_code_name [c];
2018 language_to_string (enum languages c)
2025 case lang_cplusplus:
2037 /* Return the proper printed version of a parameter to a C++ function. */
2040 parm_to_string (int p)
2044 pp_string (cxx_pp, "'this'");
2046 pp_decimal_int (cxx_pp, p + 1);
2047 return pp_formatted_text (cxx_pp);
2051 op_to_string (enum tree_code p)
2053 tree id = operator_name_info[(int) p].identifier;
2054 return id ? IDENTIFIER_POINTER (id) : "<unknown>";
2058 type_to_string (tree typ, int verbose)
2062 flags |= TFF_CLASS_KEY_OR_ENUM;
2063 flags |= TFF_TEMPLATE_HEADER;
2066 dump_type (typ, flags);
2067 return pp_formatted_text (cxx_pp);
2071 assop_to_string (enum tree_code p)
2073 tree id = assignment_operator_name_info[(int) p].identifier;
2074 return id ? IDENTIFIER_POINTER (id) : "{unknown}";
2078 args_to_string (tree p, int verbose)
2082 flags |= TFF_CLASS_KEY_OR_ENUM;
2087 if (TYPE_P (TREE_VALUE (p)))
2088 return type_as_string (p, flags);
2091 for (; p; p = TREE_CHAIN (p))
2093 if (TREE_VALUE (p) == null_node)
2094 pp_cxx_identifier (cxx_pp, "NULL");
2096 dump_type (error_type (TREE_VALUE (p)), flags);
2098 pp_separate_with_comma (cxx_pp);
2100 return pp_formatted_text (cxx_pp);
2104 cv_to_string (tree p, int v)
2107 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2108 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2109 return pp_formatted_text (cxx_pp);
2112 /* Langhook for print_error_function. */
2114 cxx_print_error_function (diagnostic_context *context, const char *file)
2116 lhd_print_error_function (context, file);
2117 pp_base_set_prefix (context->printer, file);
2118 maybe_print_instantiation_context (context);
2122 cp_diagnostic_starter (diagnostic_context *context,
2123 diagnostic_info *diagnostic)
2125 diagnostic_report_current_module (context);
2126 cp_print_error_function (context, diagnostic);
2127 maybe_print_instantiation_context (context);
2128 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2132 cp_diagnostic_finalizer (diagnostic_context *context,
2133 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2135 pp_base_destroy_prefix (context->printer);
2138 /* Print current function onto BUFFER, in the process of reporting
2139 a diagnostic message. Called from cp_diagnostic_starter. */
2141 cp_print_error_function (diagnostic_context *context,
2142 diagnostic_info *diagnostic)
2144 if (diagnostic_last_function_changed (context))
2146 const char *old_prefix = context->printer->prefix;
2147 const char *file = LOCATION_FILE (diagnostic->location);
2148 char *new_prefix = file ? file_name_as_prefix (file) : NULL;
2150 pp_base_set_prefix (context->printer, new_prefix);
2152 if (current_function_decl == NULL)
2153 pp_base_string (context->printer, "At global scope:");
2155 pp_printf (context->printer, "In %s %qs:",
2156 function_category (current_function_decl),
2157 cxx_printable_name (current_function_decl, 2));
2158 pp_base_newline (context->printer);
2160 diagnostic_set_last_function (context);
2161 pp_base_destroy_prefix (context->printer);
2162 context->printer->prefix = old_prefix;
2166 /* Returns a description of FUNCTION using standard terminology. */
2168 function_category (tree fn)
2170 if (DECL_FUNCTION_MEMBER_P (fn))
2172 if (DECL_STATIC_FUNCTION_P (fn))
2173 return "static member function";
2174 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2175 return "copy constructor";
2176 else if (DECL_CONSTRUCTOR_P (fn))
2177 return "constructor";
2178 else if (DECL_DESTRUCTOR_P (fn))
2179 return "destructor";
2181 return "member function";
2187 /* Report the full context of a current template instantiation,
2190 print_instantiation_full_context (diagnostic_context *context)
2192 tree p = current_instantiation ();
2193 location_t location = input_location;
2197 if (current_function_decl != TINST_DECL (p)
2198 && current_function_decl != NULL_TREE)
2199 /* We can get here during the processing of some synthesized
2200 method. Then, TINST_DECL (p) will be the function that's causing
2205 if (current_function_decl == TINST_DECL (p))
2206 /* Avoid redundancy with the the "In function" line. */;
2208 pp_verbatim (context->printer,
2209 "%s: In instantiation of %qs:\n",
2210 LOCATION_FILE (location),
2211 decl_as_string (TINST_DECL (p),
2212 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2214 location = TINST_LOCATION (p);
2219 print_instantiation_partial_context (context, p, location);
2222 /* Same as above but less verbose. */
2224 print_instantiation_partial_context (diagnostic_context *context,
2225 tree t, location_t loc)
2227 expanded_location xloc;
2228 for (; ; t = TREE_CHAIN (t))
2230 xloc = expand_location (loc);
2233 pp_verbatim (context->printer, "%s:%d: instantiated from %qs\n",
2234 xloc.file, xloc.line,
2235 decl_as_string (TINST_DECL (t),
2236 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2237 loc = TINST_LOCATION (t);
2239 pp_verbatim (context->printer, "%s:%d: instantiated from here\n",
2240 xloc.file, xloc.line);
2243 /* Called from cp_thing to print the template context for an error. */
2245 maybe_print_instantiation_context (diagnostic_context *context)
2247 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2250 record_last_problematic_instantiation ();
2251 print_instantiation_full_context (context);
2254 /* Report the bare minimum context of a template instantiation. */
2256 print_instantiation_context (void)
2258 print_instantiation_partial_context
2259 (global_dc, current_instantiation (), input_location);
2260 diagnostic_flush_buffer (global_dc);
2263 /* Called from output_format -- during diagnostic message processing --
2264 to handle C++ specific format specifier with the following meanings:
2265 %A function argument-list.
2269 %F function declaration.
2270 %L language as used in extern "lang".
2272 %P function parameter whose position is indicated by an integer.
2273 %Q assignment operator.
2277 cp_printer (pretty_printer *pp, text_info *text)
2281 #define next_tree va_arg (*text->args_ptr, tree)
2282 #define next_tcode va_arg (*text->args_ptr, enum tree_code)
2283 #define next_lang va_arg (*text->args_ptr, enum languages)
2284 #define next_int va_arg (*text->args_ptr, int)
2286 if (*text->format_spec == '+')
2287 ++text->format_spec;
2288 if (*text->format_spec == '#')
2291 ++text->format_spec;
2294 switch (*text->format_spec)
2296 case 'A': result = args_to_string (next_tree, verbose); break;
2297 case 'C': result = code_to_string (next_tcode); break;
2298 case 'D': result = decl_to_string (next_tree, verbose); break;
2299 case 'E': result = expr_to_string (next_tree); break;
2300 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2301 case 'L': result = language_to_string (next_lang); break;
2302 case 'O': result = op_to_string (next_tcode); break;
2303 case 'P': result = parm_to_string (next_int); break;
2304 case 'Q': result = assop_to_string (next_tcode); break;
2305 case 'T': result = type_to_string (next_tree, verbose); break;
2306 case 'V': result = cv_to_string (next_tree, verbose); break;
2312 pp_base_string (pp, result);
2320 /* These are temporary wrapper functions which handle the historic
2321 behavior of cp_*_at. */
2324 locate_error (const char *msgid, va_list ap)
2330 for (f = msgid; *f; f++)
2336 ++f; /* ignore quoting flag. */
2348 /* Just ignore these possibilities. */
2351 case 'd': (void) va_arg (ap, int); break;
2352 case 's': (void) va_arg (ap, char *); break;
2353 case 'L': (void) va_arg (ap, enum languages); break;
2356 case 'Q': (void) va_arg (ap, enum tree_code); break;
2358 /* These take a tree, which may be where the error is
2366 t = va_arg (ap, tree);
2372 errorcount = 0; /* damn ICE suppression */
2373 internal_error ("unexpected letter %qc in locate_error\n", *f);
2379 here = va_arg (ap, tree);
2386 cp_error_at (const char *msgid, ...)
2389 diagnostic_info diagnostic;
2392 va_start (ap, msgid);
2393 here = locate_error (msgid, ap);
2396 va_start (ap, msgid);
2397 diagnostic_set_info (&diagnostic, msgid, &ap,
2398 input_location, DK_ERROR);
2399 cp_diagnostic_starter (global_dc, &diagnostic);
2400 diagnostic_set_info (&diagnostic, msgid, &ap,
2401 location_of (here), DK_ERROR);
2402 report_diagnostic (&diagnostic);
2407 cp_warning_at (const char *msgid, ...)
2410 diagnostic_info diagnostic;
2413 va_start (ap, msgid);
2414 here = locate_error (msgid, ap);
2417 va_start (ap, msgid);
2418 diagnostic_set_info (&diagnostic, msgid, &ap,
2419 location_of (here), DK_WARNING);
2420 report_diagnostic (&diagnostic);
2425 cp_pedwarn_at (const char *msgid, ...)
2428 diagnostic_info diagnostic;
2431 va_start (ap, msgid);
2432 here = locate_error (msgid, ap);
2435 va_start (ap, msgid);
2436 diagnostic_set_info (&diagnostic, msgid, &ap,
2437 location_of (here), pedantic_error_kind());
2438 report_diagnostic (&diagnostic);