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, 2003,
4 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
5 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
24 #include "coretypes.h"
29 #include "diagnostic.h"
30 #include "tree-diagnostic.h"
31 #include "langhooks-def.h"
33 #include "cxx-pretty-print.h"
34 #include "tree-pretty-print.h"
35 #include "pointer-set.h"
36 #include "c-family/c-objc.h"
38 #define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
40 /* The global buffer where we dump everything. It is there only for
41 transitional purpose. It is expected, in the near future, to be
42 completely removed. */
43 static cxx_pretty_printer scratch_pretty_printer;
44 #define cxx_pp (&scratch_pretty_printer)
46 /* Translate if being used for diagnostics, but not for dump files or
48 #define M_(msgid) (pp_translate_identifiers (cxx_pp) ? _(msgid) : (msgid))
50 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
52 static const char *args_to_string (tree, int);
53 static const char *assop_to_string (enum tree_code);
54 static const char *code_to_string (enum tree_code);
55 static const char *cv_to_string (tree, int);
56 static const char *decl_to_string (tree, int);
57 static const char *expr_to_string (tree);
58 static const char *fndecl_to_string (tree, int);
59 static const char *op_to_string (enum tree_code);
60 static const char *parm_to_string (int);
61 static const char *type_to_string (tree, int);
63 static void dump_type (tree, int);
64 static void dump_typename (tree, int);
65 static void dump_simple_decl (tree, tree, int);
66 static void dump_decl (tree, int);
67 static void dump_template_decl (tree, int);
68 static void dump_function_decl (tree, int);
69 static void dump_expr (tree, int);
70 static void dump_unary_op (const char *, tree, int);
71 static void dump_binary_op (const char *, tree, int);
72 static void dump_aggr_type (tree, int);
73 static void dump_type_prefix (tree, int);
74 static void dump_type_suffix (tree, int);
75 static void dump_function_name (tree, int);
76 static void dump_call_expr_args (tree, int, bool);
77 static void dump_aggr_init_expr_args (tree, int, bool);
78 static void dump_expr_list (tree, int);
79 static void dump_global_iord (tree);
80 static void dump_parameters (tree, int);
81 static void dump_exception_spec (tree, int);
82 static void dump_template_argument (tree, int);
83 static void dump_template_argument_list (tree, int);
84 static void dump_template_parameter (tree, int);
85 static void dump_template_bindings (tree, tree, VEC(tree,gc) *);
86 static void dump_scope (tree, int);
87 static void dump_template_parms (tree, int, int);
88 static int get_non_default_template_args_count (tree, int);
89 static const char *function_category (tree);
90 static void maybe_print_constexpr_context (diagnostic_context *);
91 static void maybe_print_instantiation_context (diagnostic_context *);
92 static void print_instantiation_full_context (diagnostic_context *);
93 static void print_instantiation_partial_context (diagnostic_context *,
96 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
97 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
98 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
100 static bool cp_printer (pretty_printer *, text_info *, const char *,
101 int, bool, bool, bool);
106 diagnostic_starter (global_dc) = cp_diagnostic_starter;
107 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
108 diagnostic_format_decoder (global_dc) = cp_printer;
110 pp_construct (pp_base (cxx_pp), NULL, 0);
111 pp_cxx_pretty_printer_init (cxx_pp);
114 /* Dump a scope, if deemed necessary. */
117 dump_scope (tree scope, int flags)
119 int f = flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF);
121 if (scope == NULL_TREE)
124 if (TREE_CODE (scope) == NAMESPACE_DECL)
126 if (scope != global_namespace)
128 dump_decl (scope, f);
129 pp_cxx_colon_colon (cxx_pp);
132 else if (AGGREGATE_TYPE_P (scope))
134 dump_type (scope, f);
135 pp_cxx_colon_colon (cxx_pp);
137 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
139 dump_function_decl (scope, f);
140 pp_cxx_colon_colon (cxx_pp);
144 /* Dump the template ARGument under control of FLAGS. */
147 dump_template_argument (tree arg, int flags)
149 if (ARGUMENT_PACK_P (arg))
150 dump_template_argument_list (ARGUMENT_PACK_ARGS (arg), flags);
151 else if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
152 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
155 if (TREE_CODE (arg) == TREE_LIST)
156 arg = TREE_VALUE (arg);
158 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
162 /* Count the number of template arguments ARGS whose value does not
163 match the (optional) default template parameter in PARAMS */
166 get_non_default_template_args_count (tree args, int flags)
168 int n = TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (args));
170 if (/* We use this flag when generating debug information. We don't
171 want to expand templates at this point, for this may generate
172 new decls, which gets decl counts out of sync, which may in
173 turn cause codegen differences between compilations with and
175 (flags & TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS) != 0
176 || !flag_pretty_templates)
179 return GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT (INNERMOST_TEMPLATE_ARGS (args));
182 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
186 dump_template_argument_list (tree args, int flags)
188 int n = get_non_default_template_args_count (args, flags);
192 for (i = 0; i < n; ++i)
194 tree arg = TREE_VEC_ELT (args, i);
196 /* Only print a comma if we know there is an argument coming. In
197 the case of an empty template argument pack, no actual
198 argument will be printed. */
200 && (!ARGUMENT_PACK_P (arg)
201 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
202 pp_separate_with_comma (cxx_pp);
204 dump_template_argument (arg, flags);
209 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
212 dump_template_parameter (tree parm, int flags)
217 if (parm == error_mark_node)
220 p = TREE_VALUE (parm);
221 a = TREE_PURPOSE (parm);
223 if (TREE_CODE (p) == TYPE_DECL)
225 if (flags & TFF_DECL_SPECIFIERS)
227 pp_cxx_ws_string (cxx_pp, "class");
228 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
229 pp_cxx_ws_string (cxx_pp, "...");
231 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
233 else if (DECL_NAME (p))
234 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
236 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
239 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
241 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
243 pp_cxx_whitespace (cxx_pp);
245 pp_cxx_whitespace (cxx_pp);
246 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
247 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
249 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
253 /* Dump, under control of FLAGS, a template-parameter-list binding.
254 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
258 dump_template_bindings (tree parms, tree args, VEC(tree,gc)* typenames)
266 tree p = TREE_VALUE (parms);
267 int lvl = TMPL_PARMS_DEPTH (parms);
270 tree lvl_args = NULL_TREE;
272 /* Don't crash if we had an invalid argument list. */
273 if (TMPL_ARGS_DEPTH (args) >= lvl)
274 lvl_args = TMPL_ARGS_LEVEL (args, lvl);
276 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
278 tree arg = NULL_TREE;
280 /* Don't crash if we had an invalid argument list. */
281 if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
282 arg = TREE_VEC_ELT (lvl_args, arg_idx);
285 pp_separate_with_comma (cxx_pp);
286 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
287 pp_cxx_whitespace (cxx_pp);
289 pp_cxx_whitespace (cxx_pp);
292 if (ARGUMENT_PACK_P (arg))
293 pp_cxx_left_brace (cxx_pp);
294 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
295 if (ARGUMENT_PACK_P (arg))
296 pp_cxx_right_brace (cxx_pp);
299 pp_string (cxx_pp, M_("<missing>"));
305 parms = TREE_CHAIN (parms);
308 FOR_EACH_VEC_ELT (tree, typenames, i, t)
310 bool dependent = uses_template_parms (args);
312 pp_separate_with_comma (cxx_pp);
313 dump_type (t, TFF_PLAIN_IDENTIFIER);
314 pp_cxx_whitespace (cxx_pp);
316 pp_cxx_whitespace (cxx_pp);
317 push_deferring_access_checks (dk_no_check);
319 ++processing_template_decl;
320 t = tsubst (t, args, tf_none, NULL_TREE);
322 --processing_template_decl;
323 pop_deferring_access_checks ();
324 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
325 pp_simple_type_specifier doesn't know about it. */
326 t = strip_typedefs (t);
327 dump_type (t, TFF_PLAIN_IDENTIFIER);
331 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
335 dump_type (tree t, int flags)
340 /* Don't print e.g. "struct mytypedef". */
341 if (TYPE_P (t) && typedef_variant_p (t))
343 tree decl = TYPE_NAME (t);
344 if ((flags & TFF_CHASE_TYPEDEF)
345 || DECL_SELF_REFERENCE_P (decl)
346 || (!flag_pretty_templates
347 && DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl)))
348 t = strip_typedefs (t);
349 else if (same_type_p (t, TREE_TYPE (decl)))
353 pp_cxx_cv_qualifier_seq (cxx_pp, t);
354 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
359 if (TYPE_PTRMEMFUNC_P (t))
362 switch (TREE_CODE (t))
365 if (t == init_list_type_node)
366 pp_string (cxx_pp, M_("<brace-enclosed initializer list>"));
367 else if (t == unknown_type_node)
368 pp_string (cxx_pp, M_("<unresolved overloaded function type>"));
371 pp_cxx_cv_qualifier_seq (cxx_pp, t);
372 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
377 /* A list of function parms. */
378 dump_parameters (t, flags);
381 case IDENTIFIER_NODE:
382 pp_cxx_tree_identifier (cxx_pp, t);
386 dump_type (BINFO_TYPE (t), flags);
392 dump_aggr_type (t, flags);
396 if (flags & TFF_CHASE_TYPEDEF)
398 dump_type (DECL_ORIGINAL_TYPE (t)
399 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
402 /* Else fall through. */
406 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
415 case FIXED_POINT_TYPE:
416 pp_type_specifier_seq (cxx_pp, t);
419 case TEMPLATE_TEMPLATE_PARM:
420 /* For parameters inside template signature. */
421 if (TYPE_IDENTIFIER (t))
422 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
424 pp_cxx_canonical_template_parameter (cxx_pp, t);
427 case BOUND_TEMPLATE_TEMPLATE_PARM:
429 tree args = TYPE_TI_ARGS (t);
430 pp_cxx_cv_qualifier_seq (cxx_pp, t);
431 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
432 pp_cxx_begin_template_argument_list (cxx_pp);
433 dump_template_argument_list (args, flags);
434 pp_cxx_end_template_argument_list (cxx_pp);
438 case TEMPLATE_TYPE_PARM:
439 pp_cxx_cv_qualifier_seq (cxx_pp, t);
440 if (TYPE_IDENTIFIER (t))
441 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
443 pp_cxx_canonical_template_parameter
444 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
447 /* This is not always necessary for pointers and such, but doing this
448 reduces code size. */
457 dump_type_prefix (t, flags);
458 dump_type_suffix (t, flags);
462 if (! (flags & TFF_CHASE_TYPEDEF)
463 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
465 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
468 pp_cxx_cv_qualifier_seq (cxx_pp, t);
469 pp_cxx_ws_string (cxx_pp,
470 TYPENAME_IS_ENUM_P (t) ? "enum"
471 : TYPENAME_IS_CLASS_P (t) ? "class"
473 dump_typename (t, flags);
476 case UNBOUND_CLASS_TEMPLATE:
477 if (! (flags & TFF_UNQUALIFIED_NAME))
479 dump_type (TYPE_CONTEXT (t), flags);
480 pp_cxx_colon_colon (cxx_pp);
482 pp_cxx_ws_string (cxx_pp, "template");
483 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
487 pp_cxx_ws_string (cxx_pp, "__typeof__");
488 pp_cxx_whitespace (cxx_pp);
489 pp_cxx_left_paren (cxx_pp);
490 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
491 pp_cxx_right_paren (cxx_pp);
494 case UNDERLYING_TYPE:
495 pp_cxx_ws_string (cxx_pp, "__underlying_type");
496 pp_cxx_whitespace (cxx_pp);
497 pp_cxx_left_paren (cxx_pp);
498 dump_expr (UNDERLYING_TYPE_TYPE (t), flags & ~TFF_EXPR_IN_PARENS);
499 pp_cxx_right_paren (cxx_pp);
502 case TYPE_PACK_EXPANSION:
503 dump_type (PACK_EXPANSION_PATTERN (t), flags);
504 pp_cxx_ws_string (cxx_pp, "...");
507 case TYPE_ARGUMENT_PACK:
508 dump_template_argument (t, flags);
512 pp_cxx_ws_string (cxx_pp, "decltype");
513 pp_cxx_whitespace (cxx_pp);
514 pp_cxx_left_paren (cxx_pp);
515 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
516 pp_cxx_right_paren (cxx_pp);
520 pp_string (cxx_pp, "std::nullptr_t");
524 pp_unsupported_tree (cxx_pp, t);
525 /* Fall through to error. */
528 pp_string (cxx_pp, M_("<type error>"));
533 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
537 dump_typename (tree t, int flags)
539 tree ctx = TYPE_CONTEXT (t);
541 if (TREE_CODE (ctx) == TYPENAME_TYPE)
542 dump_typename (ctx, flags);
544 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
545 pp_cxx_colon_colon (cxx_pp);
546 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
549 /* Return the name of the supplied aggregate, or enumeral type. */
552 class_key_or_enum_as_string (tree t)
554 if (TREE_CODE (t) == ENUMERAL_TYPE)
556 if (SCOPED_ENUM_P (t))
561 else if (TREE_CODE (t) == UNION_TYPE)
563 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
569 /* Print out a class declaration T under the control of FLAGS,
570 in the form `class foo'. */
573 dump_aggr_type (tree t, int flags)
576 const char *variety = class_key_or_enum_as_string (t);
580 pp_cxx_cv_qualifier_seq (cxx_pp, t);
582 if (flags & TFF_CLASS_KEY_OR_ENUM)
583 pp_cxx_ws_string (cxx_pp, variety);
585 name = TYPE_NAME (t);
589 typdef = !DECL_ARTIFICIAL (name);
592 && ((flags & TFF_CHASE_TYPEDEF)
593 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
594 && DECL_TEMPLATE_INFO (name))))
595 || DECL_SELF_REFERENCE_P (name))
597 t = TYPE_MAIN_VARIANT (t);
598 name = TYPE_NAME (t);
602 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
603 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
604 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
605 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
607 if (! (flags & TFF_UNQUALIFIED_NAME))
608 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
609 flags &= ~TFF_UNQUALIFIED_NAME;
612 /* Because the template names are mangled, we have to locate
613 the most general template, and use that name. */
614 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
616 while (DECL_TEMPLATE_INFO (tpl))
617 tpl = DECL_TI_TEMPLATE (tpl);
620 name = DECL_NAME (name);
623 if (name == 0 || ANON_AGGRNAME_P (name))
625 if (flags & TFF_CLASS_KEY_OR_ENUM)
626 pp_string (cxx_pp, M_("<anonymous>"));
628 pp_printf (pp_base (cxx_pp), M_("<anonymous %s>"), variety);
630 else if (LAMBDANAME_P (name))
632 /* A lambda's "type" is essentially its signature. */
633 pp_string (cxx_pp, M_("<lambda"));
634 if (lambda_function (t))
635 dump_parameters (FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t)),
637 pp_character(cxx_pp, '>');
640 pp_cxx_tree_identifier (cxx_pp, name);
642 dump_template_parms (TYPE_TEMPLATE_INFO (t),
643 !CLASSTYPE_USE_TEMPLATE (t),
644 flags & ~TFF_TEMPLATE_HEADER);
647 /* Dump into the obstack the initial part of the output for a given type.
648 This is necessary when dealing with things like functions returning
651 return type of `int (* fee ())()': pointer -> function -> int. Both
652 pointer (and reference and offset) and function (and member) types must
653 deal with prefix and suffix.
655 Arrays must also do this for DECL nodes, like int a[], and for things like
659 dump_type_prefix (tree t, int flags)
661 if (TYPE_PTRMEMFUNC_P (t))
663 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
667 switch (TREE_CODE (t))
672 tree sub = TREE_TYPE (t);
674 dump_type_prefix (sub, flags);
675 if (TREE_CODE (sub) == ARRAY_TYPE
676 || TREE_CODE (sub) == FUNCTION_TYPE)
678 pp_cxx_whitespace (cxx_pp);
679 pp_cxx_left_paren (cxx_pp);
680 pp_c_attributes_display (pp_c_base (cxx_pp),
681 TYPE_ATTRIBUTES (sub));
683 if (TREE_CODE (t) == POINTER_TYPE)
684 pp_character(cxx_pp, '*');
685 else if (TREE_CODE (t) == REFERENCE_TYPE)
687 if (TYPE_REF_IS_RVALUE (t))
688 pp_string (cxx_pp, "&&");
690 pp_character (cxx_pp, '&');
692 pp_base (cxx_pp)->padding = pp_before;
693 pp_cxx_cv_qualifier_seq (cxx_pp, t);
699 dump_type_prefix (TREE_TYPE (t), flags);
700 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
702 pp_maybe_space (cxx_pp);
703 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
704 pp_cxx_left_paren (cxx_pp);
705 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
706 pp_cxx_colon_colon (cxx_pp);
708 pp_cxx_star (cxx_pp);
709 pp_cxx_cv_qualifier_seq (cxx_pp, t);
710 pp_base (cxx_pp)->padding = pp_before;
713 /* This can be reached without a pointer when dealing with
714 templates, e.g. std::is_function. */
716 dump_type_prefix (TREE_TYPE (t), flags);
720 dump_type_prefix (TREE_TYPE (t), flags);
721 pp_maybe_space (cxx_pp);
722 pp_cxx_left_paren (cxx_pp);
723 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
724 pp_cxx_colon_colon (cxx_pp);
728 dump_type_prefix (TREE_TYPE (t), flags);
732 case IDENTIFIER_NODE:
737 case TEMPLATE_TYPE_PARM:
738 case TEMPLATE_TEMPLATE_PARM:
739 case BOUND_TEMPLATE_TEMPLATE_PARM:
750 case UNDERLYING_TYPE:
752 case TYPE_PACK_EXPANSION:
753 case FIXED_POINT_TYPE:
755 dump_type (t, flags);
756 pp_base (cxx_pp)->padding = pp_before;
760 pp_unsupported_tree (cxx_pp, t);
763 pp_string (cxx_pp, M_("<typeprefixerror>"));
768 /* Dump the suffix of type T, under control of FLAGS. This is the part
769 which appears after the identifier (or function parms). */
772 dump_type_suffix (tree t, int flags)
774 if (TYPE_PTRMEMFUNC_P (t))
775 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
777 switch (TREE_CODE (t))
782 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
783 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
784 pp_cxx_right_paren (cxx_pp);
785 dump_type_suffix (TREE_TYPE (t), flags);
792 if (TREE_CODE (t) == METHOD_TYPE)
793 /* Can only be reached through a pointer. */
794 pp_cxx_right_paren (cxx_pp);
795 arg = TYPE_ARG_TYPES (t);
796 if (TREE_CODE (t) == METHOD_TYPE)
797 arg = TREE_CHAIN (arg);
799 /* Function pointers don't have default args. Not in standard C++,
800 anyway; they may in g++, but we'll just pretend otherwise. */
801 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
803 if (TREE_CODE (t) == METHOD_TYPE)
804 pp_cxx_cv_qualifier_seq (cxx_pp, class_of_this_parm (t));
806 pp_cxx_cv_qualifier_seq (cxx_pp, t);
807 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
808 dump_type_suffix (TREE_TYPE (t), flags);
813 pp_maybe_space (cxx_pp);
814 pp_cxx_left_bracket (cxx_pp);
817 tree dtype = TYPE_DOMAIN (t);
818 tree max = TYPE_MAX_VALUE (dtype);
819 if (host_integerp (max, 0))
820 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
821 else if (TREE_CODE (max) == MINUS_EXPR)
822 dump_expr (TREE_OPERAND (max, 0),
823 flags & ~TFF_EXPR_IN_PARENS);
825 dump_expr (fold_build2_loc (input_location,
826 PLUS_EXPR, dtype, max,
827 build_int_cst (dtype, 1)),
828 flags & ~TFF_EXPR_IN_PARENS);
830 pp_cxx_right_bracket (cxx_pp);
831 dump_type_suffix (TREE_TYPE (t), flags);
835 case IDENTIFIER_NODE:
840 case TEMPLATE_TYPE_PARM:
841 case TEMPLATE_TEMPLATE_PARM:
842 case BOUND_TEMPLATE_TEMPLATE_PARM:
853 case UNDERLYING_TYPE:
855 case TYPE_PACK_EXPANSION:
856 case FIXED_POINT_TYPE:
861 pp_unsupported_tree (cxx_pp, t);
863 /* Don't mark it here, we should have already done in
870 dump_global_iord (tree t)
872 const char *p = NULL;
874 if (DECL_GLOBAL_CTOR_P (t))
875 p = M_("(static initializers for %s)");
876 else if (DECL_GLOBAL_DTOR_P (t))
877 p = M_("(static destructors for %s)");
881 pp_printf (pp_base (cxx_pp), p, input_filename);
885 dump_simple_decl (tree t, tree type, int flags)
887 if (flags & TFF_DECL_SPECIFIERS)
889 if (TREE_CODE (t) == VAR_DECL
890 && DECL_DECLARED_CONSTEXPR_P (t))
891 pp_cxx_ws_string (cxx_pp, "constexpr");
892 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
893 pp_maybe_space (cxx_pp);
895 if (! (flags & TFF_UNQUALIFIED_NAME)
896 && TREE_CODE (t) != PARM_DECL
897 && (!DECL_INITIAL (t)
898 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
899 dump_scope (CP_DECL_CONTEXT (t), flags);
900 flags &= ~TFF_UNQUALIFIED_NAME;
901 if ((flags & TFF_DECL_SPECIFIERS)
902 && DECL_TEMPLATE_PARM_P (t)
903 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
904 pp_string (cxx_pp, "...");
906 dump_decl (DECL_NAME (t), flags);
908 pp_string (cxx_pp, M_("<anonymous>"));
909 if (flags & TFF_DECL_SPECIFIERS)
910 dump_type_suffix (type, flags);
913 /* Dump a human readable string for the decl T under control of FLAGS. */
916 dump_decl (tree t, int flags)
921 /* If doing Objective-C++, give Objective-C a chance to demangle
922 Objective-C method names. */
923 if (c_dialect_objc ())
925 const char *demangled = objc_maybe_printable_name (t, flags);
928 pp_string (cxx_pp, demangled);
933 switch (TREE_CODE (t))
936 /* Don't say 'typedef class A' */
937 if (DECL_ARTIFICIAL (t) && !DECL_SELF_REFERENCE_P (t))
939 if ((flags & TFF_DECL_SPECIFIERS)
940 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
942 /* Say `class T' not just `T'. */
943 pp_cxx_ws_string (cxx_pp, "class");
945 /* Emit the `...' for a parameter pack. */
946 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
947 pp_cxx_ws_string (cxx_pp, "...");
950 dump_type (TREE_TYPE (t), flags);
953 if ((flags & TFF_DECL_SPECIFIERS)
954 && !DECL_SELF_REFERENCE_P (t))
955 pp_cxx_ws_string (cxx_pp, "typedef");
956 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
957 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
962 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
964 pp_string (cxx_pp, M_("vtable for "));
965 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
966 dump_type (DECL_CONTEXT (t), flags);
969 /* Else fall through. */
972 dump_simple_decl (t, TREE_TYPE (t), flags);
976 pp_string (cxx_pp, M_("<return value> "));
977 dump_simple_decl (t, TREE_TYPE (t), flags);
981 if (flags & TFF_DECL_SPECIFIERS)
982 pp_cxx_declaration (cxx_pp, t);
985 if (! (flags & TFF_UNQUALIFIED_NAME))
986 dump_scope (CP_DECL_CONTEXT (t), flags);
987 flags &= ~TFF_UNQUALIFIED_NAME;
988 if (DECL_NAME (t) == NULL_TREE)
989 pp_cxx_ws_string (cxx_pp, M_("{anonymous}"));
991 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
996 dump_type (TREE_OPERAND (t, 0), flags);
997 pp_string (cxx_pp, "::");
998 dump_decl (TREE_OPERAND (t, 1), flags|TFF_UNQUALIFIED_NAME);
1002 dump_decl (TREE_OPERAND (t, 0), flags);
1003 pp_cxx_left_bracket (cxx_pp);
1004 dump_decl (TREE_OPERAND (t, 1), flags);
1005 pp_cxx_right_bracket (cxx_pp);
1008 /* So that we can do dump_decl on an aggr type. */
1012 dump_type (t, flags);
1016 /* This is a pseudo destructor call which has not been folded into
1017 a PSEUDO_DTOR_EXPR yet. */
1018 pp_cxx_complement (cxx_pp);
1019 dump_type (TREE_OPERAND (t, 0), flags);
1026 /* These special cases are duplicated here so that other functions
1027 can feed identifiers to error and get them demangled properly. */
1028 case IDENTIFIER_NODE:
1029 if (IDENTIFIER_TYPENAME_P (t))
1031 pp_cxx_ws_string (cxx_pp, "operator");
1032 /* Not exactly IDENTIFIER_TYPE_VALUE. */
1033 dump_type (TREE_TYPE (t), flags);
1037 pp_cxx_tree_identifier (cxx_pp, t);
1043 t = OVL_CURRENT (t);
1044 if (DECL_CLASS_SCOPE_P (t))
1046 dump_type (DECL_CONTEXT (t), flags);
1047 pp_cxx_colon_colon (cxx_pp);
1049 else if (!DECL_FILE_SCOPE_P (t))
1051 dump_decl (DECL_CONTEXT (t), flags);
1052 pp_cxx_colon_colon (cxx_pp);
1054 dump_decl (DECL_NAME (t), flags);
1058 /* If there's only one function, just treat it like an ordinary
1060 t = OVL_CURRENT (t);
1064 if (! DECL_LANG_SPECIFIC (t))
1065 pp_string (cxx_pp, M_("<built-in>"));
1066 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
1067 dump_global_iord (t);
1069 dump_function_decl (t, flags);
1073 dump_template_decl (t, flags);
1076 case TEMPLATE_ID_EXPR:
1078 tree name = TREE_OPERAND (t, 0);
1080 if (is_overloaded_fn (name))
1081 name = DECL_NAME (get_first_fn (name));
1082 dump_decl (name, flags);
1083 pp_cxx_begin_template_argument_list (cxx_pp);
1084 if (TREE_OPERAND (t, 1))
1085 dump_template_argument_list (TREE_OPERAND (t, 1), flags);
1086 pp_cxx_end_template_argument_list (cxx_pp);
1091 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1095 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1096 || (DECL_INITIAL (t) &&
1097 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1098 dump_simple_decl (t, TREE_TYPE (t), flags);
1099 else if (DECL_NAME (t))
1100 dump_decl (DECL_NAME (t), flags);
1101 else if (DECL_INITIAL (t))
1102 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1104 pp_string (cxx_pp, M_("<enumerator>"));
1108 pp_cxx_ws_string (cxx_pp, "using");
1109 dump_type (USING_DECL_SCOPE (t), flags);
1110 pp_cxx_colon_colon (cxx_pp);
1111 dump_decl (DECL_NAME (t), flags);
1115 pp_cxx_declaration (cxx_pp, t);
1119 dump_decl (BASELINK_FUNCTIONS (t), flags);
1122 case NON_DEPENDENT_EXPR:
1123 dump_expr (t, flags);
1126 case TEMPLATE_TYPE_PARM:
1127 if (flags & TFF_DECL_SPECIFIERS)
1128 pp_cxx_declaration (cxx_pp, t);
1130 pp_type_id (cxx_pp, t);
1133 case UNBOUND_CLASS_TEMPLATE:
1134 case TYPE_PACK_EXPANSION:
1136 dump_type (t, flags);
1140 pp_unsupported_tree (cxx_pp, t);
1141 /* Fall through to error. */
1144 pp_string (cxx_pp, M_("<declaration error>"));
1149 /* Dump a template declaration T under control of FLAGS. This means the
1150 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1153 dump_template_decl (tree t, int flags)
1155 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1159 if (flags & TFF_TEMPLATE_HEADER)
1161 for (parms = orig_parms = nreverse (orig_parms);
1163 parms = TREE_CHAIN (parms))
1165 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1166 int len = TREE_VEC_LENGTH (inner_parms);
1168 pp_cxx_ws_string (cxx_pp, "template");
1169 pp_cxx_begin_template_argument_list (cxx_pp);
1171 /* If we've shown the template prefix, we'd better show the
1172 parameters' and decl's type too. */
1173 flags |= TFF_DECL_SPECIFIERS;
1175 for (i = 0; i < len; i++)
1178 pp_separate_with_comma (cxx_pp);
1179 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1181 pp_cxx_end_template_argument_list (cxx_pp);
1182 pp_cxx_whitespace (cxx_pp);
1184 nreverse(orig_parms);
1186 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1188 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1189 pp_cxx_ws_string (cxx_pp, "class");
1191 /* If this is a parameter pack, print the ellipsis. */
1192 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1193 pp_cxx_ws_string (cxx_pp, "...");
1197 if (DECL_TEMPLATE_RESULT (t)
1198 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1199 dump_type (TREE_TYPE (t),
1200 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1201 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1202 else if (DECL_TEMPLATE_RESULT (t)
1203 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1204 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1207 gcc_assert (TREE_TYPE (t));
1208 switch (NEXT_CODE (t))
1212 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1215 /* This case can occur with some invalid code. */
1216 dump_type (TREE_TYPE (t),
1217 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1218 | (flags & TFF_DECL_SPECIFIERS
1219 ? TFF_CLASS_KEY_OR_ENUM : 0));
1224 /* find_typenames looks through the type of the function template T
1225 and returns a VEC containing any typedefs, decltypes or TYPENAME_TYPEs
1228 struct find_typenames_t
1230 struct pointer_set_t *p_set;
1231 VEC (tree,gc) *typenames;
1235 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1237 struct find_typenames_t *d = (struct find_typenames_t *)data;
1238 tree mv = NULL_TREE;
1240 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1241 /* Add the type of the typedef without any additional cv-quals. */
1242 mv = TREE_TYPE (TYPE_NAME (*tp));
1243 else if (TREE_CODE (*tp) == TYPENAME_TYPE
1244 || TREE_CODE (*tp) == DECLTYPE_TYPE)
1245 /* Add the typename without any cv-qualifiers. */
1246 mv = TYPE_MAIN_VARIANT (*tp);
1248 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1249 VEC_safe_push (tree, gc, d->typenames, mv);
1251 /* Search into class template arguments, which cp_walk_subtrees
1253 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1254 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1260 static VEC(tree,gc) *
1261 find_typenames (tree t)
1263 struct find_typenames_t ft;
1264 ft.p_set = pointer_set_create ();
1265 ft.typenames = NULL;
1266 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1267 find_typenames_r, &ft, ft.p_set);
1268 pointer_set_destroy (ft.p_set);
1269 return ft.typenames;
1272 /* Pretty print a function decl. There are several ways we want to print a
1273 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1274 As error can only apply the '#' flag once to give 0 and 1 for V, there
1275 is %D which doesn't print the throw specs, and %F which does. */
1278 dump_function_decl (tree t, int flags)
1282 tree cname = NULL_TREE;
1283 tree template_args = NULL_TREE;
1284 tree template_parms = NULL_TREE;
1285 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1286 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1288 VEC(tree,gc) *typenames = NULL;
1290 if (DECL_NAME (t) && LAMBDA_FUNCTION_P (t))
1292 /* A lambda's signature is essentially its "type", so defer. */
1293 gcc_assert (LAMBDA_TYPE_P (DECL_CONTEXT (t)));
1294 dump_type (DECL_CONTEXT (t), flags);
1298 flags &= ~TFF_UNQUALIFIED_NAME;
1299 if (TREE_CODE (t) == TEMPLATE_DECL)
1300 t = DECL_TEMPLATE_RESULT (t);
1302 /* Save the exceptions, in case t is a specialization and we are
1303 emitting an error about incompatible specifications. */
1304 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1306 /* Pretty print template instantiations only. */
1307 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1308 && flag_pretty_templates)
1312 template_args = DECL_TI_ARGS (t);
1313 tmpl = most_general_template (t);
1314 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1316 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1318 typenames = find_typenames (t);
1322 fntype = TREE_TYPE (t);
1323 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1325 if (DECL_CLASS_SCOPE_P (t))
1326 cname = DECL_CONTEXT (t);
1327 /* This is for partially instantiated template methods. */
1328 else if (TREE_CODE (fntype) == METHOD_TYPE)
1329 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1331 if (flags & TFF_DECL_SPECIFIERS)
1333 if (DECL_STATIC_FUNCTION_P (t))
1334 pp_cxx_ws_string (cxx_pp, "static");
1335 else if (DECL_VIRTUAL_P (t))
1336 pp_cxx_ws_string (cxx_pp, "virtual");
1338 if (DECL_DECLARED_CONSTEXPR_P (STRIP_TEMPLATE (t)))
1339 pp_cxx_ws_string (cxx_pp, "constexpr");
1342 /* Print the return type? */
1344 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1345 && !DECL_DESTRUCTOR_P (t);
1347 dump_type_prefix (TREE_TYPE (fntype), flags);
1349 /* Print the function name. */
1350 if (!do_outer_scope)
1354 dump_type (cname, flags);
1355 pp_cxx_colon_colon (cxx_pp);
1358 dump_scope (CP_DECL_CONTEXT (t), flags);
1360 dump_function_name (t, flags);
1362 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1364 dump_parameters (parmtypes, flags);
1366 if (TREE_CODE (fntype) == METHOD_TYPE)
1368 pp_base (cxx_pp)->padding = pp_before;
1369 pp_cxx_cv_qualifier_seq (cxx_pp, class_of_this_parm (fntype));
1372 if (flags & TFF_EXCEPTION_SPECIFICATION)
1374 pp_base (cxx_pp)->padding = pp_before;
1375 dump_exception_spec (exceptions, flags);
1379 dump_type_suffix (TREE_TYPE (fntype), flags);
1382 /* If T is a template instantiation, dump the parameter binding. */
1383 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1385 pp_cxx_whitespace (cxx_pp);
1386 pp_cxx_left_bracket (cxx_pp);
1387 pp_cxx_ws_string (cxx_pp, M_("with"));
1388 pp_cxx_whitespace (cxx_pp);
1389 dump_template_bindings (template_parms, template_args, typenames);
1390 pp_cxx_right_bracket (cxx_pp);
1394 /* Print a parameter list. If this is for a member function, the
1395 member object ptr (and any other hidden args) should have
1396 already been removed. */
1399 dump_parameters (tree parmtypes, int flags)
1402 flags &= ~TFF_SCOPE;
1403 pp_cxx_left_paren (cxx_pp);
1405 for (first = 1; parmtypes != void_list_node;
1406 parmtypes = TREE_CHAIN (parmtypes))
1409 pp_separate_with_comma (cxx_pp);
1413 pp_cxx_ws_string (cxx_pp, "...");
1417 dump_type (TREE_VALUE (parmtypes), flags);
1419 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1421 pp_cxx_whitespace (cxx_pp);
1423 pp_cxx_whitespace (cxx_pp);
1424 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1428 pp_cxx_right_paren (cxx_pp);
1431 /* Print an exception specification. T is the exception specification. */
1434 dump_exception_spec (tree t, int flags)
1436 if (t && TREE_PURPOSE (t))
1438 pp_cxx_ws_string (cxx_pp, "noexcept");
1439 pp_cxx_whitespace (cxx_pp);
1440 pp_cxx_left_paren (cxx_pp);
1441 dump_expr (TREE_PURPOSE (t), flags);
1442 pp_cxx_right_paren (cxx_pp);
1446 pp_cxx_ws_string (cxx_pp, "throw");
1447 pp_cxx_whitespace (cxx_pp);
1448 pp_cxx_left_paren (cxx_pp);
1449 if (TREE_VALUE (t) != NULL_TREE)
1452 dump_type (TREE_VALUE (t), flags);
1456 pp_separate_with_comma (cxx_pp);
1458 pp_cxx_right_paren (cxx_pp);
1462 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1463 and destructors properly. */
1466 dump_function_name (tree t, int flags)
1468 tree name = DECL_NAME (t);
1470 /* We can get here with a decl that was synthesized by language-
1471 independent machinery (e.g. coverage.c) in which case it won't
1472 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1473 will crash. In this case it is safe just to print out the
1475 if (!DECL_LANG_SPECIFIC (t))
1477 pp_cxx_tree_identifier (cxx_pp, name);
1481 if (TREE_CODE (t) == TEMPLATE_DECL)
1482 t = DECL_TEMPLATE_RESULT (t);
1484 /* Don't let the user see __comp_ctor et al. */
1485 if (DECL_CONSTRUCTOR_P (t)
1486 || DECL_DESTRUCTOR_P (t))
1488 if (LAMBDA_TYPE_P (DECL_CONTEXT (t)))
1489 name = get_identifier ("<lambda>");
1491 name = constructor_name (DECL_CONTEXT (t));
1494 if (DECL_DESTRUCTOR_P (t))
1496 pp_cxx_complement (cxx_pp);
1497 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1499 else if (DECL_CONV_FN_P (t))
1501 /* This cannot use the hack that the operator's return
1502 type is stashed off of its name because it may be
1503 used for error reporting. In the case of conflicting
1504 declarations, both will have the same name, yet
1505 the types will be different, hence the TREE_TYPE field
1506 of the first name will be clobbered by the second. */
1507 pp_cxx_ws_string (cxx_pp, "operator");
1508 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1510 else if (name && IDENTIFIER_OPNAME_P (name))
1511 pp_cxx_tree_identifier (cxx_pp, name);
1513 dump_decl (name, flags);
1515 if (DECL_TEMPLATE_INFO (t)
1516 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1517 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1518 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1519 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1522 /* Dump the template parameters from the template info INFO under control of
1523 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1524 specialization (partial or complete). For partial specializations we show
1525 the specialized parameter values. For a primary template we show no
1529 dump_template_parms (tree info, int primary, int flags)
1531 tree args = info ? TI_ARGS (info) : NULL_TREE;
1533 if (primary && flags & TFF_TEMPLATE_NAME)
1535 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1536 pp_cxx_begin_template_argument_list (cxx_pp);
1538 /* Be careful only to print things when we have them, so as not
1539 to crash producing error messages. */
1540 if (args && !primary)
1543 len = get_non_default_template_args_count (args, flags);
1545 args = INNERMOST_TEMPLATE_ARGS (args);
1546 for (ix = 0; ix != len; ix++)
1548 tree arg = TREE_VEC_ELT (args, ix);
1550 /* Only print a comma if we know there is an argument coming. In
1551 the case of an empty template argument pack, no actual
1552 argument will be printed. */
1554 && (!ARGUMENT_PACK_P (arg)
1555 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1556 pp_separate_with_comma (cxx_pp);
1559 pp_string (cxx_pp, M_("<template parameter error>"));
1561 dump_template_argument (arg, flags);
1566 tree tpl = TI_TEMPLATE (info);
1567 tree parms = DECL_TEMPLATE_PARMS (tpl);
1570 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1571 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1573 for (ix = 0; ix != len; ix++)
1577 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1579 pp_string (cxx_pp, M_("<template parameter error>"));
1583 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1586 pp_separate_with_comma (cxx_pp);
1588 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1591 pp_cxx_end_template_argument_list (cxx_pp);
1594 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1595 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1598 dump_call_expr_args (tree t, int flags, bool skipfirst)
1601 call_expr_arg_iterator iter;
1603 pp_cxx_left_paren (cxx_pp);
1604 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1610 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1611 if (more_call_expr_args_p (&iter))
1612 pp_separate_with_comma (cxx_pp);
1615 pp_cxx_right_paren (cxx_pp);
1618 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1619 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1623 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1626 aggr_init_expr_arg_iterator iter;
1628 pp_cxx_left_paren (cxx_pp);
1629 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1635 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1636 if (more_aggr_init_expr_args_p (&iter))
1637 pp_separate_with_comma (cxx_pp);
1640 pp_cxx_right_paren (cxx_pp);
1643 /* Print out a list of initializers (subr of dump_expr). */
1646 dump_expr_list (tree l, int flags)
1650 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1653 pp_separate_with_comma (cxx_pp);
1657 /* Print out a vector of initializers (subr of dump_expr). */
1660 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1662 unsigned HOST_WIDE_INT idx;
1665 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1667 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1668 if (idx != VEC_length (constructor_elt, v) - 1)
1669 pp_separate_with_comma (cxx_pp);
1674 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1675 function. Resolve it to a close relative -- in the sense of static
1676 type -- variant being overridden. That is close to what was written in
1677 the source code. Subroutine of dump_expr. */
1680 resolve_virtual_fun_from_obj_type_ref (tree ref)
1682 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1683 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1684 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1687 fun = TREE_CHAIN (fun);
1688 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1689 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1695 /* Print out an expression E under control of FLAGS. */
1698 dump_expr (tree t, int flags)
1703 if (STATEMENT_CLASS_P (t))
1705 pp_cxx_ws_string (cxx_pp, M_("<statement>"));
1709 switch (TREE_CODE (t))
1717 case NAMESPACE_DECL:
1721 case IDENTIFIER_NODE:
1722 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1729 pp_constant (cxx_pp, t);
1733 /* While waiting for caret diagnostics, avoid printing
1734 __cxa_allocate_exception, __cxa_throw, and the like. */
1735 pp_cxx_ws_string (cxx_pp, M_("<throw-expression>"));
1739 pp_ampersand (cxx_pp);
1740 dump_type (PTRMEM_CST_CLASS (t), flags);
1741 pp_cxx_colon_colon (cxx_pp);
1742 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1746 pp_cxx_left_paren (cxx_pp);
1747 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1748 pp_separate_with_comma (cxx_pp);
1749 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1750 pp_cxx_right_paren (cxx_pp);
1754 pp_cxx_left_paren (cxx_pp);
1755 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1756 pp_string (cxx_pp, " ? ");
1757 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1758 pp_string (cxx_pp, " : ");
1759 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1760 pp_cxx_right_paren (cxx_pp);
1764 if (TREE_HAS_CONSTRUCTOR (t))
1766 pp_cxx_ws_string (cxx_pp, "new");
1767 pp_cxx_whitespace (cxx_pp);
1768 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1771 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1774 case AGGR_INIT_EXPR:
1776 tree fn = NULL_TREE;
1778 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1779 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1781 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1783 if (DECL_CONSTRUCTOR_P (fn))
1784 dump_type (DECL_CONTEXT (fn), flags);
1789 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1791 dump_aggr_init_expr_args (t, flags, true);
1796 tree fn = CALL_EXPR_FN (t);
1797 bool skipfirst = false;
1799 if (TREE_CODE (fn) == ADDR_EXPR)
1800 fn = TREE_OPERAND (fn, 0);
1802 /* Nobody is interested in seeing the guts of vcalls. */
1803 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1804 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1806 if (TREE_TYPE (fn) != NULL_TREE
1807 && NEXT_CODE (fn) == METHOD_TYPE
1808 && call_expr_nargs (t))
1810 tree ob = CALL_EXPR_ARG (t, 0);
1811 if (TREE_CODE (ob) == ADDR_EXPR)
1813 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1814 pp_cxx_dot (cxx_pp);
1816 else if (TREE_CODE (ob) != PARM_DECL
1817 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1819 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1820 pp_cxx_arrow (cxx_pp);
1824 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1825 dump_call_expr_args (t, flags, skipfirst);
1830 /* Note that this only works for G++ target exprs. If somebody
1831 builds a general TARGET_EXPR, there's no way to represent that
1832 it initializes anything other that the parameter slot for the
1833 default argument. Note we may have cleared out the first
1834 operand in expand_expr, so don't go killing ourselves. */
1835 if (TREE_OPERAND (t, 1))
1836 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1839 case POINTER_PLUS_EXPR:
1840 dump_binary_op ("+", t, flags);
1848 case TRUNC_DIV_EXPR:
1849 case TRUNC_MOD_EXPR:
1857 case TRUTH_ANDIF_EXPR:
1858 case TRUTH_ORIF_EXPR:
1865 case EXACT_DIV_EXPR:
1866 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1870 case FLOOR_DIV_EXPR:
1871 case ROUND_DIV_EXPR:
1873 dump_binary_op ("/", t, flags);
1877 case FLOOR_MOD_EXPR:
1878 case ROUND_MOD_EXPR:
1879 dump_binary_op ("%", t, flags);
1884 tree ob = TREE_OPERAND (t, 0);
1885 if (TREE_CODE (ob) == INDIRECT_REF)
1887 ob = TREE_OPERAND (ob, 0);
1888 if (TREE_CODE (ob) != PARM_DECL
1890 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1892 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1893 pp_cxx_arrow (cxx_pp);
1898 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1899 pp_cxx_dot (cxx_pp);
1901 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1906 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1907 pp_cxx_left_bracket (cxx_pp);
1908 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1909 pp_cxx_right_bracket (cxx_pp);
1912 case UNARY_PLUS_EXPR:
1913 dump_unary_op ("+", t, flags);
1917 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1918 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1919 /* An ADDR_EXPR can have reference type. In that case, we
1920 shouldn't print the `&' doing so indicates to the user
1921 that the expression has pointer type. */
1923 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1924 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1925 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1926 dump_unary_op ("&&", t, flags);
1928 dump_unary_op ("&", t, flags);
1932 if (TREE_HAS_CONSTRUCTOR (t))
1934 t = TREE_OPERAND (t, 0);
1935 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1936 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1937 dump_call_expr_args (t, flags, true);
1941 if (TREE_OPERAND (t,0) != NULL_TREE
1942 && TREE_TYPE (TREE_OPERAND (t, 0))
1943 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1944 dump_expr (TREE_OPERAND (t, 0), flags);
1946 dump_unary_op ("*", t, flags);
1951 if (TREE_CODE (TREE_OPERAND (t, 0)) == ADDR_EXPR
1952 && integer_zerop (TREE_OPERAND (t, 1)))
1953 dump_expr (TREE_OPERAND (TREE_OPERAND (t, 0), 0), flags);
1956 pp_cxx_star (cxx_pp);
1957 if (!integer_zerop (TREE_OPERAND (t, 1)))
1959 pp_cxx_left_paren (cxx_pp);
1960 if (!integer_onep (TYPE_SIZE_UNIT
1961 (TREE_TYPE (TREE_TYPE (TREE_OPERAND (t, 0))))))
1963 pp_cxx_left_paren (cxx_pp);
1964 dump_type (ptr_type_node, flags);
1965 pp_cxx_right_paren (cxx_pp);
1968 dump_expr (TREE_OPERAND (t, 0), flags);
1969 if (!integer_zerop (TREE_OPERAND (t, 1)))
1971 pp_cxx_ws_string (cxx_pp, "+");
1972 dump_expr (fold_convert (ssizetype, TREE_OPERAND (t, 1)), flags);
1973 pp_cxx_right_paren (cxx_pp);
1980 case TRUTH_NOT_EXPR:
1981 case PREDECREMENT_EXPR:
1982 case PREINCREMENT_EXPR:
1983 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1986 case POSTDECREMENT_EXPR:
1987 case POSTINCREMENT_EXPR:
1988 pp_cxx_left_paren (cxx_pp);
1989 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1990 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1991 pp_cxx_right_paren (cxx_pp);
1994 case NON_LVALUE_EXPR:
1995 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1996 should be another level of INDIRECT_REF so that I don't have to do
1998 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
2000 tree next = TREE_TYPE (TREE_TYPE (t));
2002 while (TREE_CODE (next) == POINTER_TYPE)
2003 next = TREE_TYPE (next);
2005 if (TREE_CODE (next) == FUNCTION_TYPE)
2007 if (flags & TFF_EXPR_IN_PARENS)
2008 pp_cxx_left_paren (cxx_pp);
2009 pp_cxx_star (cxx_pp);
2010 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2011 if (flags & TFF_EXPR_IN_PARENS)
2012 pp_cxx_right_paren (cxx_pp);
2015 /* Else fall through. */
2017 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2021 case VIEW_CONVERT_EXPR:
2023 tree op = TREE_OPERAND (t, 0);
2024 tree ttype = TREE_TYPE (t);
2025 tree optype = TREE_TYPE (op);
2027 if (TREE_CODE (ttype) != TREE_CODE (optype)
2028 && POINTER_TYPE_P (ttype)
2029 && POINTER_TYPE_P (optype)
2030 && same_type_p (TREE_TYPE (optype),
2033 if (TREE_CODE (ttype) == REFERENCE_TYPE)
2034 dump_unary_op ("*", t, flags);
2036 dump_unary_op ("&", t, flags);
2038 else if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
2040 /* It is a cast, but we cannot tell whether it is a
2041 reinterpret or static cast. Use the C style notation. */
2042 if (flags & TFF_EXPR_IN_PARENS)
2043 pp_cxx_left_paren (cxx_pp);
2044 pp_cxx_left_paren (cxx_pp);
2045 dump_type (TREE_TYPE (t), flags);
2046 pp_cxx_right_paren (cxx_pp);
2047 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
2048 if (flags & TFF_EXPR_IN_PARENS)
2049 pp_cxx_right_paren (cxx_pp);
2052 dump_expr (op, flags);
2057 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
2059 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
2061 if (integer_zerop (idx))
2063 /* A NULL pointer-to-member constant. */
2064 pp_cxx_left_paren (cxx_pp);
2065 pp_cxx_left_paren (cxx_pp);
2066 dump_type (TREE_TYPE (t), flags);
2067 pp_cxx_right_paren (cxx_pp);
2068 pp_character (cxx_pp, '0');
2069 pp_cxx_right_paren (cxx_pp);
2072 else if (host_integerp (idx, 0))
2075 unsigned HOST_WIDE_INT n;
2077 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
2078 t = TYPE_METHOD_BASETYPE (t);
2079 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
2081 n = tree_low_cst (idx, 0);
2083 /* Map vtable index back one, to allow for the null pointer to
2087 while (n > 0 && virtuals)
2090 virtuals = TREE_CHAIN (virtuals);
2094 dump_expr (BV_FN (virtuals),
2095 flags | TFF_EXPR_IN_PARENS);
2100 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
2102 dump_type (TREE_TYPE (t), 0);
2103 pp_cxx_left_paren (cxx_pp);
2104 pp_cxx_right_paren (cxx_pp);
2108 pp_cxx_left_brace (cxx_pp);
2109 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
2110 pp_cxx_right_brace (cxx_pp);
2117 tree ob = TREE_OPERAND (t, 0);
2118 if (is_dummy_object (ob))
2120 t = TREE_OPERAND (t, 1);
2121 if (TREE_CODE (t) == FUNCTION_DECL)
2123 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
2124 else if (BASELINK_P (t))
2125 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
2126 flags | TFF_EXPR_IN_PARENS);
2128 dump_decl (t, flags);
2132 if (TREE_CODE (ob) == INDIRECT_REF)
2134 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
2135 pp_cxx_arrow (cxx_pp);
2136 pp_cxx_star (cxx_pp);
2140 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2141 pp_cxx_dot (cxx_pp);
2142 pp_cxx_star (cxx_pp);
2144 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2149 case TEMPLATE_PARM_INDEX:
2150 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2154 if (TREE_OPERAND (t, 0) == NULL_TREE
2155 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2157 dump_type (TREE_TYPE (t), flags);
2158 pp_cxx_left_paren (cxx_pp);
2159 dump_expr_list (TREE_OPERAND (t, 0), flags);
2160 pp_cxx_right_paren (cxx_pp);
2164 pp_cxx_left_paren (cxx_pp);
2165 dump_type (TREE_TYPE (t), flags);
2166 pp_cxx_right_paren (cxx_pp);
2167 pp_cxx_left_paren (cxx_pp);
2168 dump_expr_list (TREE_OPERAND (t, 0), flags);
2169 pp_cxx_right_paren (cxx_pp);
2173 case STATIC_CAST_EXPR:
2174 pp_cxx_ws_string (cxx_pp, "static_cast");
2176 case REINTERPRET_CAST_EXPR:
2177 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2179 case CONST_CAST_EXPR:
2180 pp_cxx_ws_string (cxx_pp, "const_cast");
2182 case DYNAMIC_CAST_EXPR:
2183 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2185 pp_cxx_begin_template_argument_list (cxx_pp);
2186 dump_type (TREE_TYPE (t), flags);
2187 pp_cxx_end_template_argument_list (cxx_pp);
2188 pp_cxx_left_paren (cxx_pp);
2189 dump_expr (TREE_OPERAND (t, 0), flags);
2190 pp_cxx_right_paren (cxx_pp);
2194 dump_expr (TREE_OPERAND (t, 0), flags);
2195 pp_cxx_arrow (cxx_pp);
2200 if (TREE_CODE (t) == SIZEOF_EXPR)
2201 pp_cxx_ws_string (cxx_pp, "sizeof");
2204 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2205 pp_cxx_ws_string (cxx_pp, "__alignof__");
2207 pp_cxx_whitespace (cxx_pp);
2208 pp_cxx_left_paren (cxx_pp);
2209 if (TYPE_P (TREE_OPERAND (t, 0)))
2210 dump_type (TREE_OPERAND (t, 0), flags);
2212 dump_expr (TREE_OPERAND (t, 0), flags);
2213 pp_cxx_right_paren (cxx_pp);
2216 case AT_ENCODE_EXPR:
2217 pp_cxx_ws_string (cxx_pp, "@encode");
2218 pp_cxx_whitespace (cxx_pp);
2219 pp_cxx_left_paren (cxx_pp);
2220 dump_type (TREE_OPERAND (t, 0), flags);
2221 pp_cxx_right_paren (cxx_pp);
2225 pp_cxx_ws_string (cxx_pp, "noexcept");
2226 pp_cxx_whitespace (cxx_pp);
2227 pp_cxx_left_paren (cxx_pp);
2228 dump_expr (TREE_OPERAND (t, 0), flags);
2229 pp_cxx_right_paren (cxx_pp);
2234 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2235 pp_cxx_whitespace (cxx_pp);
2236 dump_expr (TREE_OPERAND (t, 0), flags);
2240 pp_string (cxx_pp, M_("<unparsed>"));
2243 case TRY_CATCH_EXPR:
2244 case WITH_CLEANUP_EXPR:
2245 case CLEANUP_POINT_EXPR:
2246 dump_expr (TREE_OPERAND (t, 0), flags);
2249 case PSEUDO_DTOR_EXPR:
2250 dump_expr (TREE_OPERAND (t, 2), flags);
2251 pp_cxx_dot (cxx_pp);
2252 dump_type (TREE_OPERAND (t, 0), flags);
2253 pp_cxx_colon_colon (cxx_pp);
2254 pp_cxx_complement (cxx_pp);
2255 dump_type (TREE_OPERAND (t, 1), flags);
2258 case TEMPLATE_ID_EXPR:
2259 dump_decl (t, flags);
2265 case STATEMENT_LIST:
2266 /* We don't yet have a way of dumping statements in a
2267 human-readable format. */
2268 pp_string (cxx_pp, "({...})");
2272 pp_string (cxx_pp, "while (1) { ");
2273 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2274 pp_cxx_right_brace (cxx_pp);
2278 pp_string (cxx_pp, "if (");
2279 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2280 pp_string (cxx_pp, ") break; ");
2284 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2287 case EMPTY_CLASS_EXPR:
2288 dump_type (TREE_TYPE (t), flags);
2289 pp_cxx_left_paren (cxx_pp);
2290 pp_cxx_right_paren (cxx_pp);
2293 case NON_DEPENDENT_EXPR:
2294 dump_expr (TREE_OPERAND (t, 0), flags);
2297 case ARGUMENT_PACK_SELECT:
2298 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2310 pp_type_specifier_seq (cxx_pp, t);
2314 /* We get here when we want to print a dependent type as an
2315 id-expression, without any disambiguator decoration. */
2316 pp_id_expression (cxx_pp, t);
2319 case TEMPLATE_TYPE_PARM:
2320 case BOUND_TEMPLATE_TEMPLATE_PARM:
2321 dump_type (t, flags);
2325 pp_cxx_trait_expression (cxx_pp, t);
2329 pp_cxx_va_arg_expression (cxx_pp, t);
2333 pp_cxx_offsetof_expression (cxx_pp, t);
2337 dump_decl (t, flags);
2340 case EXPR_PACK_EXPANSION:
2347 case VEC_DELETE_EXPR:
2353 case UNORDERED_EXPR:
2363 case FIX_TRUNC_EXPR:
2365 pp_expression (cxx_pp, t);
2368 case TRUTH_AND_EXPR:
2370 case TRUTH_XOR_EXPR:
2371 if (flags & TFF_EXPR_IN_PARENS)
2372 pp_cxx_left_paren (cxx_pp);
2373 pp_expression (cxx_pp, t);
2374 if (flags & TFF_EXPR_IN_PARENS)
2375 pp_cxx_right_paren (cxx_pp);
2379 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2382 /* This list is incomplete, but should suffice for now.
2383 It is very important that `sorry' does not call
2384 `report_error_function'. That could cause an infinite loop. */
2386 pp_unsupported_tree (cxx_pp, t);
2387 /* fall through to ERROR_MARK... */
2389 pp_string (cxx_pp, M_("<expression error>"));
2395 dump_binary_op (const char *opstring, tree t, int flags)
2397 pp_cxx_left_paren (cxx_pp);
2398 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2399 pp_cxx_whitespace (cxx_pp);
2401 pp_cxx_ws_string (cxx_pp, opstring);
2403 pp_string (cxx_pp, M_("<unknown operator>"));
2404 pp_cxx_whitespace (cxx_pp);
2405 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2406 pp_cxx_right_paren (cxx_pp);
2410 dump_unary_op (const char *opstring, tree t, int flags)
2412 if (flags & TFF_EXPR_IN_PARENS)
2413 pp_cxx_left_paren (cxx_pp);
2414 pp_cxx_ws_string (cxx_pp, opstring);
2415 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2416 if (flags & TFF_EXPR_IN_PARENS)
2417 pp_cxx_right_paren (cxx_pp);
2421 reinit_cxx_pp (void)
2423 pp_clear_output_area (cxx_pp);
2424 pp_base (cxx_pp)->padding = pp_none;
2425 pp_indentation (cxx_pp) = 0;
2426 pp_needs_newline (cxx_pp) = false;
2427 cxx_pp->enclosing_scope = current_function_decl;
2431 /* Exported interface to stringifying types, exprs and decls under TFF_*
2435 type_as_string (tree typ, int flags)
2438 pp_translate_identifiers (cxx_pp) = false;
2439 dump_type (typ, flags);
2440 return pp_formatted_text (cxx_pp);
2444 type_as_string_translate (tree typ, int flags)
2447 dump_type (typ, flags);
2448 return pp_formatted_text (cxx_pp);
2452 expr_as_string (tree decl, int flags)
2455 pp_translate_identifiers (cxx_pp) = false;
2456 dump_expr (decl, flags);
2457 return pp_formatted_text (cxx_pp);
2461 decl_as_string (tree decl, int flags)
2464 pp_translate_identifiers (cxx_pp) = false;
2465 dump_decl (decl, flags);
2466 return pp_formatted_text (cxx_pp);
2470 decl_as_string_translate (tree decl, int flags)
2473 dump_decl (decl, flags);
2474 return pp_formatted_text (cxx_pp);
2477 /* Generate the three forms of printable names for cxx_printable_name. */
2480 lang_decl_name (tree decl, int v, bool translate)
2484 ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
2485 : decl_as_string (decl, TFF_DECL_SPECIFIERS));
2488 pp_translate_identifiers (cxx_pp) = translate;
2490 && (DECL_CLASS_SCOPE_P (decl)
2491 || (DECL_NAMESPACE_SCOPE_P (decl)
2492 && CP_DECL_CONTEXT (decl) != global_namespace)))
2494 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2495 pp_cxx_colon_colon (cxx_pp);
2498 if (TREE_CODE (decl) == FUNCTION_DECL)
2499 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2501 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2503 return pp_formatted_text (cxx_pp);
2506 /* Return the location of a tree passed to %+ formats. */
2509 location_of (tree t)
2511 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2512 t = DECL_CONTEXT (t);
2513 else if (TYPE_P (t))
2515 t = TYPE_MAIN_DECL (t);
2517 return input_location;
2519 else if (TREE_CODE (t) == OVERLOAD)
2520 t = OVL_FUNCTION (t);
2523 return DECL_SOURCE_LOCATION (t);
2524 return EXPR_LOC_OR_HERE (t);
2527 /* Now the interfaces from error et al to dump_type et al. Each takes an
2528 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2532 decl_to_string (tree decl, int verbose)
2536 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2537 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2538 flags = TFF_CLASS_KEY_OR_ENUM;
2540 flags |= TFF_DECL_SPECIFIERS;
2541 else if (TREE_CODE (decl) == FUNCTION_DECL)
2542 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2543 flags |= TFF_TEMPLATE_HEADER;
2546 dump_decl (decl, flags);
2547 return pp_formatted_text (cxx_pp);
2551 expr_to_string (tree decl)
2554 dump_expr (decl, 0);
2555 return pp_formatted_text (cxx_pp);
2559 fndecl_to_string (tree fndecl, int verbose)
2563 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2564 | TFF_TEMPLATE_HEADER;
2566 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2568 dump_decl (fndecl, flags);
2569 return pp_formatted_text (cxx_pp);
2574 code_to_string (enum tree_code c)
2576 return tree_code_name [c];
2580 language_to_string (enum languages c)
2587 case lang_cplusplus:
2599 /* Return the proper printed version of a parameter to a C++ function. */
2602 parm_to_string (int p)
2606 pp_string (cxx_pp, "'this'");
2608 pp_decimal_int (cxx_pp, p + 1);
2609 return pp_formatted_text (cxx_pp);
2613 op_to_string (enum tree_code p)
2615 tree id = operator_name_info[(int) p].identifier;
2616 return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
2620 type_to_string (tree typ, int verbose)
2624 flags |= TFF_CLASS_KEY_OR_ENUM;
2625 flags |= TFF_TEMPLATE_HEADER;
2628 dump_type (typ, flags);
2629 return pp_formatted_text (cxx_pp);
2633 assop_to_string (enum tree_code p)
2635 tree id = assignment_operator_name_info[(int) p].identifier;
2636 return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
2640 args_to_string (tree p, int verbose)
2644 flags |= TFF_CLASS_KEY_OR_ENUM;
2649 if (TYPE_P (TREE_VALUE (p)))
2650 return type_as_string_translate (p, flags);
2653 for (; p; p = TREE_CHAIN (p))
2655 if (TREE_VALUE (p) == null_node)
2656 pp_cxx_ws_string (cxx_pp, "NULL");
2658 dump_type (error_type (TREE_VALUE (p)), flags);
2660 pp_separate_with_comma (cxx_pp);
2662 return pp_formatted_text (cxx_pp);
2666 cv_to_string (tree p, int v)
2669 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2670 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2671 return pp_formatted_text (cxx_pp);
2674 /* Langhook for print_error_function. */
2676 cxx_print_error_function (diagnostic_context *context, const char *file,
2677 diagnostic_info *diagnostic)
2679 lhd_print_error_function (context, file, diagnostic);
2680 pp_base_set_prefix (context->printer, file);
2681 maybe_print_instantiation_context (context);
2685 cp_diagnostic_starter (diagnostic_context *context,
2686 diagnostic_info *diagnostic)
2688 diagnostic_report_current_module (context);
2689 cp_print_error_function (context, diagnostic);
2690 maybe_print_instantiation_context (context);
2691 maybe_print_constexpr_context (context);
2692 pp_base_set_prefix (context->printer, diagnostic_build_prefix (context,
2697 cp_diagnostic_finalizer (diagnostic_context *context,
2698 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2700 pp_base_destroy_prefix (context->printer);
2703 /* Print current function onto BUFFER, in the process of reporting
2704 a diagnostic message. Called from cp_diagnostic_starter. */
2706 cp_print_error_function (diagnostic_context *context,
2707 diagnostic_info *diagnostic)
2709 if (diagnostic_last_function_changed (context, diagnostic))
2711 const char *old_prefix = context->printer->prefix;
2712 const char *file = LOCATION_FILE (diagnostic->location);
2713 tree abstract_origin = diagnostic_abstract_origin (diagnostic);
2714 char *new_prefix = (file && abstract_origin == NULL)
2715 ? file_name_as_prefix (file) : NULL;
2717 pp_base_set_prefix (context->printer, new_prefix);
2719 if (current_function_decl == NULL)
2720 pp_base_string (context->printer, _("At global scope:"));
2725 if (abstract_origin)
2727 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2728 while (TREE_CODE (ao) == BLOCK
2729 && BLOCK_ABSTRACT_ORIGIN (ao)
2730 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2731 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2732 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2736 fndecl = current_function_decl;
2738 pp_printf (context->printer, function_category (fndecl),
2739 cxx_printable_name_translate (fndecl, 2));
2741 while (abstract_origin)
2744 tree block = abstract_origin;
2746 locus = &BLOCK_SOURCE_LOCATION (block);
2748 block = BLOCK_SUPERCONTEXT (block);
2749 while (block && TREE_CODE (block) == BLOCK
2750 && BLOCK_ABSTRACT_ORIGIN (block))
2752 ao = BLOCK_ABSTRACT_ORIGIN (block);
2754 while (TREE_CODE (ao) == BLOCK
2755 && BLOCK_ABSTRACT_ORIGIN (ao)
2756 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2757 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2759 if (TREE_CODE (ao) == FUNCTION_DECL)
2764 else if (TREE_CODE (ao) != BLOCK)
2767 block = BLOCK_SUPERCONTEXT (block);
2770 abstract_origin = block;
2773 while (block && TREE_CODE (block) == BLOCK)
2774 block = BLOCK_SUPERCONTEXT (block);
2776 if (block && TREE_CODE (block) == FUNCTION_DECL)
2778 abstract_origin = NULL;
2782 expanded_location s = expand_location (*locus);
2783 pp_base_character (context->printer, ',');
2784 pp_base_newline (context->printer);
2787 if (context->show_column && s.column != 0)
2788 pp_printf (context->printer,
2789 _(" inlined from %qs at %s:%d:%d"),
2790 cxx_printable_name_translate (fndecl, 2),
2791 s.file, s.line, s.column);
2793 pp_printf (context->printer,
2794 _(" inlined from %qs at %s:%d"),
2795 cxx_printable_name_translate (fndecl, 2),
2800 pp_printf (context->printer, _(" inlined from %qs"),
2801 cxx_printable_name_translate (fndecl, 2));
2804 pp_base_character (context->printer, ':');
2806 pp_base_newline (context->printer);
2808 diagnostic_set_last_function (context, diagnostic);
2809 pp_base_destroy_prefix (context->printer);
2810 context->printer->prefix = old_prefix;
2814 /* Returns a description of FUNCTION using standard terminology. The
2815 result is a format string of the form "In CATEGORY %qs". */
2817 function_category (tree fn)
2819 /* We can get called from the middle-end for diagnostics of function
2820 clones. Make sure we have language specific information before
2821 dereferencing it. */
2822 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn))
2823 && DECL_FUNCTION_MEMBER_P (fn))
2825 if (DECL_STATIC_FUNCTION_P (fn))
2826 return _("In static member function %qs");
2827 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2828 return _("In copy constructor %qs");
2829 else if (DECL_CONSTRUCTOR_P (fn))
2830 return _("In constructor %qs");
2831 else if (DECL_DESTRUCTOR_P (fn))
2832 return _("In destructor %qs");
2833 else if (LAMBDA_FUNCTION_P (fn))
2834 return _("In lambda function");
2836 return _("In member function %qs");
2839 return _("In function %qs");
2842 /* Report the full context of a current template instantiation,
2845 print_instantiation_full_context (diagnostic_context *context)
2847 struct tinst_level *p = current_instantiation ();
2848 location_t location = input_location;
2852 if (current_function_decl != p->decl
2853 && current_function_decl != NULL_TREE)
2854 /* We can get here during the processing of some synthesized
2855 method. Then, P->DECL will be the function that's causing
2860 if (current_function_decl == p->decl)
2861 /* Avoid redundancy with the "In function" line. */;
2863 pp_verbatim (context->printer,
2864 _("%s: In instantiation of %qs:\n"),
2865 LOCATION_FILE (location),
2866 decl_as_string_translate (p->decl,
2867 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2869 location = p->locus;
2874 print_instantiation_partial_context (context, p, location);
2877 /* Helper function of print_instantiation_partial_context() that
2878 prints a single line of instantiation context. */
2881 print_instantiation_partial_context_line (diagnostic_context *context,
2882 const struct tinst_level *t,
2883 location_t loc, bool recursive_p)
2885 expanded_location xloc;
2886 xloc = expand_location (loc);
2891 str = decl_as_string_translate (t->decl,
2892 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE);
2893 if (context->show_column)
2894 pp_verbatim (context->printer,
2896 ? _("%s:%d:%d: recursively instantiated from %qs\n")
2897 : _("%s:%d:%d: instantiated from %qs\n"),
2898 xloc.file, xloc.line, xloc.column, str);
2900 pp_verbatim (context->printer,
2902 ? _("%s:%d: recursively instantiated from %qs\n")
2903 : _("%s:%d: recursively instantiated from %qs\n"),
2904 xloc.file, xloc.line, str);
2908 if (context->show_column)
2909 pp_verbatim (context->printer,
2911 ? _("%s:%d:%d: recursively instantiated from here")
2912 : _("%s:%d:%d: instantiated from here"),
2913 xloc.file, xloc.line, xloc.column);
2915 pp_verbatim (context->printer,
2917 ? _("%s:%d: recursively instantiated from here")
2918 : _("%s:%d: instantiated from here"),
2919 xloc.file, xloc.line);
2923 /* Same as print_instantiation_full_context but less verbose. */
2926 print_instantiation_partial_context (diagnostic_context *context,
2927 struct tinst_level *t0, location_t loc)
2929 struct tinst_level *t;
2932 location_t prev_loc = loc;
2934 for (t = t0; t != NULL; t = t->next)
2935 if (prev_loc != t->locus)
2937 prev_loc = t->locus;
2945 int skip = n_total - 10;
2946 for (n = 0; n < 5; n++)
2948 gcc_assert (t != NULL);
2949 if (loc != t->locus)
2950 print_instantiation_partial_context_line (context, t, loc,
2951 /*recursive_p=*/false);
2955 if (t != NULL && skip > 1)
2957 expanded_location xloc;
2958 xloc = expand_location (loc);
2959 if (context->show_column)
2960 pp_verbatim (context->printer,
2961 _("%s:%d:%d: [ skipping %d instantiation contexts ]\n"),
2962 xloc.file, xloc.line, xloc.column, skip);
2964 pp_verbatim (context->printer,
2965 _("%s:%d: [ skipping %d instantiation contexts ]\n"),
2966 xloc.file, xloc.line, skip);
2971 } while (t != NULL && --skip > 0);
2977 while (t->next != NULL && t->locus == t->next->locus)
2982 print_instantiation_partial_context_line (context, t, loc,
2987 print_instantiation_partial_context_line (context, NULL, loc,
2988 /*recursive_p=*/false);
2989 pp_base_newline (context->printer);
2992 /* Called from cp_thing to print the template context for an error. */
2994 maybe_print_instantiation_context (diagnostic_context *context)
2996 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2999 record_last_problematic_instantiation ();
3000 print_instantiation_full_context (context);
3003 /* Report the bare minimum context of a template instantiation. */
3005 print_instantiation_context (void)
3007 print_instantiation_partial_context
3008 (global_dc, current_instantiation (), input_location);
3009 diagnostic_flush_buffer (global_dc);
3012 /* Report what constexpr call(s) we're trying to expand, if any. */
3015 maybe_print_constexpr_context (diagnostic_context *context)
3017 VEC(tree,heap) *call_stack = cx_error_context ();
3021 FOR_EACH_VEC_ELT (tree, call_stack, ix, t)
3023 expanded_location xloc = expand_location (EXPR_LOCATION (t));
3024 const char *s = expr_as_string (t, 0);
3025 if (context->show_column)
3026 pp_verbatim (context->printer,
3027 _("%s:%d:%d: in constexpr expansion of %qs"),
3028 xloc.file, xloc.line, xloc.column, s);
3030 pp_verbatim (context->printer,
3031 _("%s:%d: in constexpr expansion of %qs"),
3032 xloc.file, xloc.line, s);
3033 pp_base_newline (context->printer);
3037 /* Called from output_format -- during diagnostic message processing --
3038 to handle C++ specific format specifier with the following meanings:
3039 %A function argument-list.
3043 %F function declaration.
3044 %L language as used in extern "lang".
3046 %P function parameter whose position is indicated by an integer.
3047 %Q assignment operator.
3051 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
3052 int precision, bool wide, bool set_locus, bool verbose)
3056 #define next_tree (t = va_arg (*text->args_ptr, tree))
3057 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
3058 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
3059 #define next_int va_arg (*text->args_ptr, int)
3061 if (precision != 0 || wide)
3064 if (text->locus == NULL)
3069 case 'A': result = args_to_string (next_tree, verbose); break;
3070 case 'C': result = code_to_string (next_tcode); break;
3073 tree temp = next_tree;
3075 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
3077 temp = DECL_DEBUG_EXPR (temp);
3080 result = expr_to_string (temp);
3084 result = decl_to_string (temp, verbose);
3087 case 'E': result = expr_to_string (next_tree); break;
3088 case 'F': result = fndecl_to_string (next_tree, verbose); break;
3089 case 'L': result = language_to_string (next_lang); break;
3090 case 'O': result = op_to_string (next_tcode); break;
3091 case 'P': result = parm_to_string (next_int); break;
3092 case 'Q': result = assop_to_string (next_tcode); break;
3093 case 'T': result = type_to_string (next_tree, verbose); break;
3094 case 'V': result = cv_to_string (next_tree, verbose); break;
3097 percent_K_format (text);
3104 pp_base_string (pp, result);
3105 if (set_locus && t != NULL)
3106 *text->locus = location_of (t);
3114 /* Warn about the use of C++0x features when appropriate. */
3116 maybe_warn_cpp0x (cpp0x_warn_str str)
3118 if ((cxx_dialect == cxx98) && !in_system_header)
3119 /* We really want to suppress this warning in system headers,
3120 because libstdc++ uses variadic templates even when we aren't
3124 case CPP0X_INITIALIZER_LISTS:
3125 pedwarn (input_location, 0,
3126 "extended initializer lists "
3127 "only available with -std=c++0x or -std=gnu++0x");
3129 case CPP0X_EXPLICIT_CONVERSION:
3130 pedwarn (input_location, 0,
3131 "explicit conversion operators "
3132 "only available with -std=c++0x or -std=gnu++0x");
3134 case CPP0X_VARIADIC_TEMPLATES:
3135 pedwarn (input_location, 0,
3136 "variadic templates "
3137 "only available with -std=c++0x or -std=gnu++0x");
3139 case CPP0X_LAMBDA_EXPR:
3140 pedwarn (input_location, 0,
3141 "lambda expressions "
3142 "only available with -std=c++0x or -std=gnu++0x");
3145 pedwarn (input_location, 0,
3146 "C++0x auto only available with -std=c++0x or -std=gnu++0x");
3148 case CPP0X_SCOPED_ENUMS:
3149 pedwarn (input_location, 0,
3150 "scoped enums only available with -std=c++0x or -std=gnu++0x");
3152 case CPP0X_DEFAULTED_DELETED:
3153 pedwarn (input_location, 0,
3154 "defaulted and deleted functions "
3155 "only available with -std=c++0x or -std=gnu++0x");
3157 case CPP0X_INLINE_NAMESPACES:
3158 pedwarn (input_location, OPT_pedantic,
3159 "inline namespaces "
3160 "only available with -std=c++0x or -std=gnu++0x");
3167 /* Warn about the use of variadic templates when appropriate. */
3169 maybe_warn_variadic_templates (void)
3171 maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES);
3175 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
3176 option OPT with text GMSGID. Use this function to report
3177 diagnostics for constructs that are invalid C++98, but valid
3180 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
3182 diagnostic_info diagnostic;
3185 va_start (ap, gmsgid);
3186 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
3187 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
3188 diagnostic.option_index = opt;
3190 return report_diagnostic (&diagnostic);
3193 /* Issue a diagnostic that NAME cannot be found in SCOPE. DECL is what
3194 we found when we tried to do the lookup. LOCATION is the location of
3195 the NAME identifier. */
3198 qualified_name_lookup_error (tree scope, tree name,
3199 tree decl, location_t location)
3201 if (scope == error_mark_node)
3202 ; /* We already complained. */
3203 else if (TYPE_P (scope))
3205 if (!COMPLETE_TYPE_P (scope))
3206 error_at (location, "incomplete type %qT used in nested name specifier",
3208 else if (TREE_CODE (decl) == TREE_LIST)
3210 error_at (location, "reference to %<%T::%D%> is ambiguous",
3212 print_candidates (decl);
3215 error_at (location, "%qD is not a member of %qT", name, scope);
3217 else if (scope != global_namespace)
3219 error_at (location, "%qD is not a member of %qD", name, scope);
3220 suggest_alternatives_for (location, name);
3224 error_at (location, "%<::%D%> has not been declared", name);
3225 suggest_alternatives_for (location, name);