1 /* Call-backs for C++ error reporting.
2 This code is non-reentrant.
3 Copyright (C) 1993-2013 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
22 #include "coretypes.h"
27 #include "diagnostic.h"
28 #include "tree-diagnostic.h"
29 #include "langhooks-def.h"
31 #include "cxx-pretty-print.h"
32 #include "tree-pretty-print.h"
33 #include "pointer-set.h"
34 #include "c-family/c-objc.h"
36 #define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
37 #define pp_separate_with_semicolon(PP) pp_cxx_separate_with (PP, ';')
39 /* The global buffer where we dump everything. It is there only for
40 transitional purpose. It is expected, in the near future, to be
41 completely removed. */
42 static cxx_pretty_printer scratch_pretty_printer;
43 #define cxx_pp (&scratch_pretty_printer)
45 /* Translate if being used for diagnostics, but not for dump files or
47 #define M_(msgid) (pp_translate_identifiers (cxx_pp) ? _(msgid) : (msgid))
49 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
51 static const char *args_to_string (tree, int);
52 static const char *assop_to_string (enum tree_code);
53 static const char *code_to_string (enum tree_code);
54 static const char *cv_to_string (tree, int);
55 static const char *decl_to_string (tree, int);
56 static const char *expr_to_string (tree);
57 static const char *fndecl_to_string (tree, int);
58 static const char *op_to_string (enum tree_code);
59 static const char *parm_to_string (int);
60 static const char *type_to_string (tree, int);
62 static void dump_alias_template_specialization (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_ref_qualifier (tree, int);
82 static void dump_exception_spec (tree, int);
83 static void dump_template_argument (tree, int);
84 static void dump_template_argument_list (tree, int);
85 static void dump_template_parameter (tree, int);
86 static void dump_template_bindings (tree, tree, vec<tree, va_gc> *);
87 static void dump_scope (tree, int);
88 static void dump_template_parms (tree, int, int);
89 static int get_non_default_template_args_count (tree, int);
90 static const char *function_category (tree);
91 static void maybe_print_constexpr_context (diagnostic_context *);
92 static void maybe_print_instantiation_context (diagnostic_context *);
93 static void print_instantiation_full_context (diagnostic_context *);
94 static void print_instantiation_partial_context (diagnostic_context *,
97 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
98 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
99 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
101 static bool cp_printer (pretty_printer *, text_info *, const char *,
102 int, bool, bool, bool);
107 diagnostic_starter (global_dc) = cp_diagnostic_starter;
108 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
109 diagnostic_format_decoder (global_dc) = cp_printer;
111 pp_construct (pp_base (cxx_pp), NULL, 0);
112 pp_cxx_pretty_printer_init (cxx_pp);
115 /* Dump a scope, if deemed necessary. */
118 dump_scope (tree scope, int flags)
120 int f = flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF);
122 if (scope == NULL_TREE)
125 if (TREE_CODE (scope) == NAMESPACE_DECL)
127 if (scope != global_namespace)
129 dump_decl (scope, f);
130 pp_cxx_colon_colon (cxx_pp);
133 else if (AGGREGATE_TYPE_P (scope))
135 dump_type (scope, f);
136 pp_cxx_colon_colon (cxx_pp);
138 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
140 dump_function_decl (scope, f);
141 pp_cxx_colon_colon (cxx_pp);
145 /* Dump the template ARGument under control of FLAGS. */
148 dump_template_argument (tree arg, int flags)
150 if (ARGUMENT_PACK_P (arg))
151 dump_template_argument_list (ARGUMENT_PACK_ARGS (arg),
152 /* No default args in argument packs. */
153 flags|TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS);
154 else if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
155 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
158 if (TREE_CODE (arg) == TREE_LIST)
159 arg = TREE_VALUE (arg);
161 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
165 /* Count the number of template arguments ARGS whose value does not
166 match the (optional) default template parameter in PARAMS */
169 get_non_default_template_args_count (tree args, int flags)
171 int n = TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (args));
173 if (/* We use this flag when generating debug information. We don't
174 want to expand templates at this point, for this may generate
175 new decls, which gets decl counts out of sync, which may in
176 turn cause codegen differences between compilations with and
178 (flags & TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS) != 0
179 || !flag_pretty_templates)
182 return GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT (INNERMOST_TEMPLATE_ARGS (args));
185 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
189 dump_template_argument_list (tree args, int flags)
191 int n = get_non_default_template_args_count (args, flags);
195 for (i = 0; i < n; ++i)
197 tree arg = TREE_VEC_ELT (args, i);
199 /* Only print a comma if we know there is an argument coming. In
200 the case of an empty template argument pack, no actual
201 argument will be printed. */
203 && (!ARGUMENT_PACK_P (arg)
204 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
205 pp_separate_with_comma (cxx_pp);
207 dump_template_argument (arg, flags);
212 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
215 dump_template_parameter (tree parm, int flags)
220 if (parm == error_mark_node)
223 p = TREE_VALUE (parm);
224 a = TREE_PURPOSE (parm);
226 if (TREE_CODE (p) == TYPE_DECL)
228 if (flags & TFF_DECL_SPECIFIERS)
230 pp_cxx_ws_string (cxx_pp, "class");
231 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
232 pp_cxx_ws_string (cxx_pp, "...");
234 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
236 else if (DECL_NAME (p))
237 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
239 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
242 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
244 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
246 pp_cxx_whitespace (cxx_pp);
248 pp_cxx_whitespace (cxx_pp);
249 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
250 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
252 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
256 /* Dump, under control of FLAGS, a template-parameter-list binding.
257 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
261 dump_template_bindings (tree parms, tree args, vec<tree, va_gc> *typenames)
263 bool need_semicolon = false;
269 tree p = TREE_VALUE (parms);
270 int lvl = TMPL_PARMS_DEPTH (parms);
273 tree lvl_args = NULL_TREE;
275 /* Don't crash if we had an invalid argument list. */
276 if (TMPL_ARGS_DEPTH (args) >= lvl)
277 lvl_args = TMPL_ARGS_LEVEL (args, lvl);
279 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
281 tree arg = NULL_TREE;
283 /* Don't crash if we had an invalid argument list. */
284 if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
285 arg = TREE_VEC_ELT (lvl_args, arg_idx);
288 pp_separate_with_semicolon (cxx_pp);
289 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
290 pp_cxx_whitespace (cxx_pp);
292 pp_cxx_whitespace (cxx_pp);
295 if (ARGUMENT_PACK_P (arg))
296 pp_cxx_left_brace (cxx_pp);
297 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
298 if (ARGUMENT_PACK_P (arg))
299 pp_cxx_right_brace (cxx_pp);
302 pp_string (cxx_pp, M_("<missing>"));
305 need_semicolon = true;
308 parms = TREE_CHAIN (parms);
311 /* Don't bother with typenames for a partial instantiation. */
312 if (vec_safe_is_empty (typenames) || uses_template_parms (args))
315 FOR_EACH_VEC_SAFE_ELT (typenames, i, t)
318 pp_separate_with_semicolon (cxx_pp);
319 dump_type (t, TFF_PLAIN_IDENTIFIER);
320 pp_cxx_whitespace (cxx_pp);
322 pp_cxx_whitespace (cxx_pp);
323 push_deferring_access_checks (dk_no_check);
324 t = tsubst (t, args, tf_none, NULL_TREE);
325 pop_deferring_access_checks ();
326 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
327 pp_simple_type_specifier doesn't know about it. */
328 t = strip_typedefs (t);
329 dump_type (t, TFF_PLAIN_IDENTIFIER);
333 /* Dump a human-readable equivalent of the alias template
334 specialization of T. */
337 dump_alias_template_specialization (tree t, int flags)
341 gcc_assert (alias_template_specialization_p (t));
343 if (!(flags & TFF_UNQUALIFIED_NAME))
344 dump_scope (CP_DECL_CONTEXT (TYPE_NAME (t)), flags);
345 name = TYPE_IDENTIFIER (t);
346 pp_cxx_tree_identifier (cxx_pp, name);
347 dump_template_parms (TYPE_TEMPLATE_INFO (t),
349 flags & ~TFF_TEMPLATE_HEADER);
352 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
356 dump_type (tree t, int flags)
361 /* Don't print e.g. "struct mytypedef". */
362 if (TYPE_P (t) && typedef_variant_p (t))
364 tree decl = TYPE_NAME (t);
365 if ((flags & TFF_CHASE_TYPEDEF)
366 || DECL_SELF_REFERENCE_P (decl)
367 || (!flag_pretty_templates
368 && DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl)))
369 t = strip_typedefs (t);
370 else if (alias_template_specialization_p (t))
372 dump_alias_template_specialization (t, flags);
375 else if (same_type_p (t, TREE_TYPE (decl)))
379 pp_cxx_cv_qualifier_seq (cxx_pp, t);
380 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
385 if (TYPE_PTRMEMFUNC_P (t))
388 switch (TREE_CODE (t))
391 if (t == init_list_type_node)
392 pp_string (cxx_pp, M_("<brace-enclosed initializer list>"));
393 else if (t == unknown_type_node)
394 pp_string (cxx_pp, M_("<unresolved overloaded function type>"));
397 pp_cxx_cv_qualifier_seq (cxx_pp, t);
398 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
403 /* A list of function parms. */
404 dump_parameters (t, flags);
407 case IDENTIFIER_NODE:
408 pp_cxx_tree_identifier (cxx_pp, t);
412 dump_type (BINFO_TYPE (t), flags);
418 dump_aggr_type (t, flags);
422 if (flags & TFF_CHASE_TYPEDEF)
424 dump_type (DECL_ORIGINAL_TYPE (t)
425 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
428 /* Else fall through. */
432 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
441 case FIXED_POINT_TYPE:
442 pp_type_specifier_seq (cxx_pp, t);
445 case TEMPLATE_TEMPLATE_PARM:
446 /* For parameters inside template signature. */
447 if (TYPE_IDENTIFIER (t))
448 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
450 pp_cxx_canonical_template_parameter (cxx_pp, t);
453 case BOUND_TEMPLATE_TEMPLATE_PARM:
455 tree args = TYPE_TI_ARGS (t);
456 pp_cxx_cv_qualifier_seq (cxx_pp, t);
457 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
458 pp_cxx_begin_template_argument_list (cxx_pp);
459 dump_template_argument_list (args, flags);
460 pp_cxx_end_template_argument_list (cxx_pp);
464 case TEMPLATE_TYPE_PARM:
465 pp_cxx_cv_qualifier_seq (cxx_pp, t);
466 if (TYPE_IDENTIFIER (t))
467 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
469 pp_cxx_canonical_template_parameter
470 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
473 /* This is not always necessary for pointers and such, but doing this
474 reduces code size. */
483 dump_type_prefix (t, flags);
484 dump_type_suffix (t, flags);
488 if (! (flags & TFF_CHASE_TYPEDEF)
489 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
491 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
494 pp_cxx_cv_qualifier_seq (cxx_pp, t);
495 pp_cxx_ws_string (cxx_pp,
496 TYPENAME_IS_ENUM_P (t) ? "enum"
497 : TYPENAME_IS_CLASS_P (t) ? "class"
499 dump_typename (t, flags);
502 case UNBOUND_CLASS_TEMPLATE:
503 if (! (flags & TFF_UNQUALIFIED_NAME))
505 dump_type (TYPE_CONTEXT (t), flags);
506 pp_cxx_colon_colon (cxx_pp);
508 pp_cxx_ws_string (cxx_pp, "template");
509 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
513 pp_cxx_ws_string (cxx_pp, "__typeof__");
514 pp_cxx_whitespace (cxx_pp);
515 pp_cxx_left_paren (cxx_pp);
516 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
517 pp_cxx_right_paren (cxx_pp);
520 case UNDERLYING_TYPE:
521 pp_cxx_ws_string (cxx_pp, "__underlying_type");
522 pp_cxx_whitespace (cxx_pp);
523 pp_cxx_left_paren (cxx_pp);
524 dump_expr (UNDERLYING_TYPE_TYPE (t), flags & ~TFF_EXPR_IN_PARENS);
525 pp_cxx_right_paren (cxx_pp);
528 case TYPE_PACK_EXPANSION:
529 dump_type (PACK_EXPANSION_PATTERN (t), flags);
530 pp_cxx_ws_string (cxx_pp, "...");
533 case TYPE_ARGUMENT_PACK:
534 dump_template_argument (t, flags);
538 pp_cxx_ws_string (cxx_pp, "decltype");
539 pp_cxx_whitespace (cxx_pp);
540 pp_cxx_left_paren (cxx_pp);
541 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
542 pp_cxx_right_paren (cxx_pp);
546 pp_string (cxx_pp, "std::nullptr_t");
550 pp_unsupported_tree (cxx_pp, t);
551 /* Fall through to error. */
554 pp_string (cxx_pp, M_("<type error>"));
559 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
563 dump_typename (tree t, int flags)
565 tree ctx = TYPE_CONTEXT (t);
567 if (TREE_CODE (ctx) == TYPENAME_TYPE)
568 dump_typename (ctx, flags);
570 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
571 pp_cxx_colon_colon (cxx_pp);
572 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
575 /* Return the name of the supplied aggregate, or enumeral type. */
578 class_key_or_enum_as_string (tree t)
580 if (TREE_CODE (t) == ENUMERAL_TYPE)
582 if (SCOPED_ENUM_P (t))
587 else if (TREE_CODE (t) == UNION_TYPE)
589 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
595 /* Print out a class declaration T under the control of FLAGS,
596 in the form `class foo'. */
599 dump_aggr_type (tree t, int flags)
602 const char *variety = class_key_or_enum_as_string (t);
606 pp_cxx_cv_qualifier_seq (cxx_pp, t);
608 if (flags & TFF_CLASS_KEY_OR_ENUM)
609 pp_cxx_ws_string (cxx_pp, variety);
611 name = TYPE_NAME (t);
615 typdef = (!DECL_ARTIFICIAL (name)
616 /* An alias specialization is not considered to be a
618 && !alias_template_specialization_p (t));
621 && ((flags & TFF_CHASE_TYPEDEF)
622 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
623 && DECL_TEMPLATE_INFO (name))))
624 || DECL_SELF_REFERENCE_P (name))
626 t = TYPE_MAIN_VARIANT (t);
627 name = TYPE_NAME (t);
631 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
632 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
633 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
634 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
636 if (! (flags & TFF_UNQUALIFIED_NAME))
637 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
638 flags &= ~TFF_UNQUALIFIED_NAME;
641 /* Because the template names are mangled, we have to locate
642 the most general template, and use that name. */
643 tree tpl = TYPE_TI_TEMPLATE (t);
645 while (DECL_TEMPLATE_INFO (tpl))
646 tpl = DECL_TI_TEMPLATE (tpl);
649 name = DECL_NAME (name);
652 if (name == 0 || ANON_AGGRNAME_P (name))
654 if (flags & TFF_CLASS_KEY_OR_ENUM)
655 pp_string (cxx_pp, M_("<anonymous>"));
657 pp_printf (pp_base (cxx_pp), M_("<anonymous %s>"), variety);
659 else if (LAMBDA_TYPE_P (name))
661 /* A lambda's "type" is essentially its signature. */
662 pp_string (cxx_pp, M_("<lambda"));
663 if (lambda_function (t))
664 dump_parameters (FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t)),
666 pp_character(cxx_pp, '>');
669 pp_cxx_tree_identifier (cxx_pp, name);
671 dump_template_parms (TYPE_TEMPLATE_INFO (t),
672 !CLASSTYPE_USE_TEMPLATE (t),
673 flags & ~TFF_TEMPLATE_HEADER);
676 /* Dump into the obstack the initial part of the output for a given type.
677 This is necessary when dealing with things like functions returning
680 return type of `int (* fee ())()': pointer -> function -> int. Both
681 pointer (and reference and offset) and function (and member) types must
682 deal with prefix and suffix.
684 Arrays must also do this for DECL nodes, like int a[], and for things like
688 dump_type_prefix (tree t, int flags)
690 if (TYPE_PTRMEMFUNC_P (t))
692 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
696 switch (TREE_CODE (t))
701 tree sub = TREE_TYPE (t);
703 dump_type_prefix (sub, flags);
704 if (TREE_CODE (sub) == ARRAY_TYPE
705 || TREE_CODE (sub) == FUNCTION_TYPE)
707 pp_cxx_whitespace (cxx_pp);
708 pp_cxx_left_paren (cxx_pp);
709 pp_c_attributes_display (pp_c_base (cxx_pp),
710 TYPE_ATTRIBUTES (sub));
712 if (TREE_CODE (t) == POINTER_TYPE)
713 pp_character(cxx_pp, '*');
714 else if (TREE_CODE (t) == REFERENCE_TYPE)
716 if (TYPE_REF_IS_RVALUE (t))
717 pp_string (cxx_pp, "&&");
719 pp_character (cxx_pp, '&');
721 pp_base (cxx_pp)->padding = pp_before;
722 pp_cxx_cv_qualifier_seq (cxx_pp, t);
728 dump_type_prefix (TREE_TYPE (t), flags);
729 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
731 pp_maybe_space (cxx_pp);
732 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
733 pp_cxx_left_paren (cxx_pp);
734 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
735 pp_cxx_colon_colon (cxx_pp);
737 pp_cxx_star (cxx_pp);
738 pp_cxx_cv_qualifier_seq (cxx_pp, t);
739 pp_base (cxx_pp)->padding = pp_before;
742 /* This can be reached without a pointer when dealing with
743 templates, e.g. std::is_function. */
745 dump_type_prefix (TREE_TYPE (t), flags);
749 dump_type_prefix (TREE_TYPE (t), flags);
750 pp_maybe_space (cxx_pp);
751 pp_cxx_left_paren (cxx_pp);
752 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
753 pp_cxx_colon_colon (cxx_pp);
757 dump_type_prefix (TREE_TYPE (t), flags);
761 case IDENTIFIER_NODE:
766 case TEMPLATE_TYPE_PARM:
767 case TEMPLATE_TEMPLATE_PARM:
768 case BOUND_TEMPLATE_TEMPLATE_PARM:
779 case UNDERLYING_TYPE:
781 case TYPE_PACK_EXPANSION:
782 case FIXED_POINT_TYPE:
784 dump_type (t, flags);
785 pp_base (cxx_pp)->padding = pp_before;
789 pp_unsupported_tree (cxx_pp, t);
792 pp_string (cxx_pp, M_("<typeprefixerror>"));
797 /* Dump the suffix of type T, under control of FLAGS. This is the part
798 which appears after the identifier (or function parms). */
801 dump_type_suffix (tree t, int flags)
803 if (TYPE_PTRMEMFUNC_P (t))
804 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
806 switch (TREE_CODE (t))
811 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
812 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
813 pp_cxx_right_paren (cxx_pp);
814 dump_type_suffix (TREE_TYPE (t), flags);
821 if (TREE_CODE (t) == METHOD_TYPE)
822 /* Can only be reached through a pointer. */
823 pp_cxx_right_paren (cxx_pp);
824 arg = TYPE_ARG_TYPES (t);
825 if (TREE_CODE (t) == METHOD_TYPE)
826 arg = TREE_CHAIN (arg);
828 /* Function pointers don't have default args. Not in standard C++,
829 anyway; they may in g++, but we'll just pretend otherwise. */
830 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
832 if (TREE_CODE (t) == METHOD_TYPE)
833 pp_cxx_cv_qualifier_seq (cxx_pp, class_of_this_parm (t));
835 pp_cxx_cv_qualifier_seq (cxx_pp, t);
836 dump_ref_qualifier (t, flags);
837 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
838 dump_type_suffix (TREE_TYPE (t), flags);
843 pp_maybe_space (cxx_pp);
844 pp_cxx_left_bracket (cxx_pp);
847 tree dtype = TYPE_DOMAIN (t);
848 tree max = TYPE_MAX_VALUE (dtype);
849 if (integer_all_onesp (max))
850 pp_character (cxx_pp, '0');
851 else if (host_integerp (max, 0))
852 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
853 else if (TREE_CODE (max) == MINUS_EXPR)
854 dump_expr (TREE_OPERAND (max, 0),
855 flags & ~TFF_EXPR_IN_PARENS);
857 dump_expr (fold_build2_loc (input_location,
858 PLUS_EXPR, dtype, max,
859 build_int_cst (dtype, 1)),
860 flags & ~TFF_EXPR_IN_PARENS);
862 pp_cxx_right_bracket (cxx_pp);
863 dump_type_suffix (TREE_TYPE (t), flags);
867 case IDENTIFIER_NODE:
872 case TEMPLATE_TYPE_PARM:
873 case TEMPLATE_TEMPLATE_PARM:
874 case BOUND_TEMPLATE_TEMPLATE_PARM:
885 case UNDERLYING_TYPE:
887 case TYPE_PACK_EXPANSION:
888 case FIXED_POINT_TYPE:
893 pp_unsupported_tree (cxx_pp, t);
895 /* Don't mark it here, we should have already done in
902 dump_global_iord (tree t)
904 const char *p = NULL;
906 if (DECL_GLOBAL_CTOR_P (t))
907 p = M_("(static initializers for %s)");
908 else if (DECL_GLOBAL_DTOR_P (t))
909 p = M_("(static destructors for %s)");
913 pp_printf (pp_base (cxx_pp), p, input_filename);
917 dump_simple_decl (tree t, tree type, int flags)
919 if (flags & TFF_DECL_SPECIFIERS)
921 if (TREE_CODE (t) == VAR_DECL
922 && DECL_DECLARED_CONSTEXPR_P (t))
923 pp_cxx_ws_string (cxx_pp, "constexpr");
924 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
925 pp_maybe_space (cxx_pp);
927 if (! (flags & TFF_UNQUALIFIED_NAME)
928 && TREE_CODE (t) != PARM_DECL
929 && (!DECL_INITIAL (t)
930 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
931 dump_scope (CP_DECL_CONTEXT (t), flags);
932 flags &= ~TFF_UNQUALIFIED_NAME;
933 if ((flags & TFF_DECL_SPECIFIERS)
934 && DECL_TEMPLATE_PARM_P (t)
935 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
936 pp_string (cxx_pp, "...");
938 dump_decl (DECL_NAME (t), flags);
940 pp_string (cxx_pp, M_("<anonymous>"));
941 if (flags & TFF_DECL_SPECIFIERS)
942 dump_type_suffix (type, flags);
945 /* Dump a human readable string for the decl T under control of FLAGS. */
948 dump_decl (tree t, int flags)
953 /* If doing Objective-C++, give Objective-C a chance to demangle
954 Objective-C method names. */
955 if (c_dialect_objc ())
957 const char *demangled = objc_maybe_printable_name (t, flags);
960 pp_string (cxx_pp, demangled);
965 switch (TREE_CODE (t))
968 /* Don't say 'typedef class A' */
969 if (DECL_ARTIFICIAL (t) && !DECL_SELF_REFERENCE_P (t))
971 if ((flags & TFF_DECL_SPECIFIERS)
972 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
974 /* Say `class T' not just `T'. */
975 pp_cxx_ws_string (cxx_pp, "class");
977 /* Emit the `...' for a parameter pack. */
978 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
979 pp_cxx_ws_string (cxx_pp, "...");
982 dump_type (TREE_TYPE (t), flags);
985 if (TYPE_DECL_ALIAS_P (t)
986 && (flags & TFF_DECL_SPECIFIERS
987 || flags & TFF_CLASS_KEY_OR_ENUM))
989 pp_cxx_ws_string (cxx_pp, "using");
990 dump_decl (DECL_NAME (t), flags);
991 pp_cxx_whitespace (cxx_pp);
992 pp_cxx_ws_string (cxx_pp, "=");
993 pp_cxx_whitespace (cxx_pp);
994 dump_type (DECL_ORIGINAL_TYPE (t), flags);
997 if ((flags & TFF_DECL_SPECIFIERS)
998 && !DECL_SELF_REFERENCE_P (t))
999 pp_cxx_ws_string (cxx_pp, "typedef");
1000 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
1001 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
1006 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
1008 pp_string (cxx_pp, M_("vtable for "));
1009 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
1010 dump_type (DECL_CONTEXT (t), flags);
1013 /* Else fall through. */
1016 dump_simple_decl (t, TREE_TYPE (t), flags);
1020 pp_string (cxx_pp, M_("<return value> "));
1021 dump_simple_decl (t, TREE_TYPE (t), flags);
1024 case NAMESPACE_DECL:
1025 if (flags & TFF_DECL_SPECIFIERS)
1026 pp_cxx_declaration (cxx_pp, t);
1029 if (! (flags & TFF_UNQUALIFIED_NAME))
1030 dump_scope (CP_DECL_CONTEXT (t), flags);
1031 flags &= ~TFF_UNQUALIFIED_NAME;
1032 if (DECL_NAME (t) == NULL_TREE)
1034 if (!(pp_c_base (cxx_pp)->flags & pp_c_flag_gnu_v3))
1035 pp_cxx_ws_string (cxx_pp, M_("{anonymous}"));
1037 pp_cxx_ws_string (cxx_pp, M_("(anonymous namespace)"));
1040 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1045 dump_type (TREE_OPERAND (t, 0), flags);
1046 pp_string (cxx_pp, "::");
1047 dump_decl (TREE_OPERAND (t, 1), TFF_UNQUALIFIED_NAME);
1051 dump_decl (TREE_OPERAND (t, 0), flags);
1052 pp_cxx_left_bracket (cxx_pp);
1053 dump_decl (TREE_OPERAND (t, 1), flags);
1054 pp_cxx_right_bracket (cxx_pp);
1057 /* So that we can do dump_decl on an aggr type. */
1061 dump_type (t, flags);
1065 /* This is a pseudo destructor call which has not been folded into
1066 a PSEUDO_DTOR_EXPR yet. */
1067 pp_cxx_complement (cxx_pp);
1068 dump_type (TREE_OPERAND (t, 0), flags);
1075 /* These special cases are duplicated here so that other functions
1076 can feed identifiers to error and get them demangled properly. */
1077 case IDENTIFIER_NODE:
1078 if (IDENTIFIER_TYPENAME_P (t))
1080 pp_cxx_ws_string (cxx_pp, "operator");
1081 /* Not exactly IDENTIFIER_TYPE_VALUE. */
1082 dump_type (TREE_TYPE (t), flags);
1086 pp_cxx_tree_identifier (cxx_pp, t);
1092 t = OVL_CURRENT (t);
1093 if (DECL_CLASS_SCOPE_P (t))
1095 dump_type (DECL_CONTEXT (t), flags);
1096 pp_cxx_colon_colon (cxx_pp);
1098 else if (!DECL_FILE_SCOPE_P (t))
1100 dump_decl (DECL_CONTEXT (t), flags);
1101 pp_cxx_colon_colon (cxx_pp);
1103 dump_decl (DECL_NAME (t), flags);
1107 /* If there's only one function, just treat it like an ordinary
1109 t = OVL_CURRENT (t);
1113 if (! DECL_LANG_SPECIFIC (t))
1114 pp_string (cxx_pp, M_("<built-in>"));
1115 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
1116 dump_global_iord (t);
1118 dump_function_decl (t, flags);
1122 dump_template_decl (t, flags);
1125 case TEMPLATE_ID_EXPR:
1127 tree name = TREE_OPERAND (t, 0);
1128 tree args = TREE_OPERAND (t, 1);
1130 if (is_overloaded_fn (name))
1131 name = DECL_NAME (get_first_fn (name));
1132 dump_decl (name, flags);
1133 pp_cxx_begin_template_argument_list (cxx_pp);
1134 if (args == error_mark_node)
1135 pp_string (cxx_pp, M_("<template arguments error>"));
1137 dump_template_argument_list (args, flags);
1138 pp_cxx_end_template_argument_list (cxx_pp);
1143 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1147 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1148 || (DECL_INITIAL (t) &&
1149 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1150 dump_simple_decl (t, TREE_TYPE (t), flags);
1151 else if (DECL_NAME (t))
1152 dump_decl (DECL_NAME (t), flags);
1153 else if (DECL_INITIAL (t))
1154 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1156 pp_string (cxx_pp, M_("<enumerator>"));
1160 pp_cxx_ws_string (cxx_pp, "using");
1161 dump_type (USING_DECL_SCOPE (t), flags);
1162 pp_cxx_colon_colon (cxx_pp);
1163 dump_decl (DECL_NAME (t), flags);
1167 pp_cxx_declaration (cxx_pp, t);
1171 dump_decl (BASELINK_FUNCTIONS (t), flags);
1174 case NON_DEPENDENT_EXPR:
1175 dump_expr (t, flags);
1178 case TEMPLATE_TYPE_PARM:
1179 if (flags & TFF_DECL_SPECIFIERS)
1180 pp_cxx_declaration (cxx_pp, t);
1182 pp_type_id (cxx_pp, t);
1185 case UNBOUND_CLASS_TEMPLATE:
1186 case TYPE_PACK_EXPANSION:
1188 dump_type (t, flags);
1192 pp_unsupported_tree (cxx_pp, t);
1193 /* Fall through to error. */
1196 pp_string (cxx_pp, M_("<declaration error>"));
1201 /* Dump a template declaration T under control of FLAGS. This means the
1202 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1205 dump_template_decl (tree t, int flags)
1207 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1211 if (flags & TFF_TEMPLATE_HEADER)
1213 for (parms = orig_parms = nreverse (orig_parms);
1215 parms = TREE_CHAIN (parms))
1217 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1218 int len = TREE_VEC_LENGTH (inner_parms);
1220 pp_cxx_ws_string (cxx_pp, "template");
1221 pp_cxx_begin_template_argument_list (cxx_pp);
1223 /* If we've shown the template prefix, we'd better show the
1224 parameters' and decl's type too. */
1225 flags |= TFF_DECL_SPECIFIERS;
1227 for (i = 0; i < len; i++)
1230 pp_separate_with_comma (cxx_pp);
1231 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1233 pp_cxx_end_template_argument_list (cxx_pp);
1234 pp_cxx_whitespace (cxx_pp);
1236 nreverse(orig_parms);
1238 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1240 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1241 pp_cxx_ws_string (cxx_pp, "class");
1243 /* If this is a parameter pack, print the ellipsis. */
1244 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1245 pp_cxx_ws_string (cxx_pp, "...");
1249 if (DECL_CLASS_TEMPLATE_P (t))
1250 dump_type (TREE_TYPE (t),
1251 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1252 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1253 else if (DECL_TEMPLATE_RESULT (t)
1254 && (TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL
1255 /* Alias template. */
1256 || DECL_TYPE_TEMPLATE_P (t)))
1257 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1260 gcc_assert (TREE_TYPE (t));
1261 switch (NEXT_CODE (t))
1265 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1268 /* This case can occur with some invalid code. */
1269 dump_type (TREE_TYPE (t),
1270 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1271 | (flags & TFF_DECL_SPECIFIERS
1272 ? TFF_CLASS_KEY_OR_ENUM : 0));
1277 /* find_typenames looks through the type of the function template T
1278 and returns a vec containing any typedefs, decltypes or TYPENAME_TYPEs
1281 struct find_typenames_t
1283 struct pointer_set_t *p_set;
1284 vec<tree, va_gc> *typenames;
1288 find_typenames_r (tree *tp, int *walk_subtrees, void *data)
1290 struct find_typenames_t *d = (struct find_typenames_t *)data;
1291 tree mv = NULL_TREE;
1293 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1294 /* Add the type of the typedef without any additional cv-quals. */
1295 mv = TREE_TYPE (TYPE_NAME (*tp));
1296 else if (TREE_CODE (*tp) == TYPENAME_TYPE
1297 || TREE_CODE (*tp) == DECLTYPE_TYPE)
1298 /* Add the typename without any cv-qualifiers. */
1299 mv = TYPE_MAIN_VARIANT (*tp);
1301 if (TREE_CODE (*tp) == TYPE_PACK_EXPANSION)
1303 /* Don't mess with parameter packs since we don't remember
1304 the pack expansion context for a particular typename. */
1305 *walk_subtrees = false;
1309 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1310 vec_safe_push (d->typenames, mv);
1312 /* Search into class template arguments, which cp_walk_subtrees
1314 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1315 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1321 static vec<tree, va_gc> *
1322 find_typenames (tree t)
1324 struct find_typenames_t ft;
1325 ft.p_set = pointer_set_create ();
1326 ft.typenames = NULL;
1327 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1328 find_typenames_r, &ft, ft.p_set);
1329 pointer_set_destroy (ft.p_set);
1330 return ft.typenames;
1333 /* Pretty print a function decl. There are several ways we want to print a
1334 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1335 As error can only apply the '#' flag once to give 0 and 1 for V, there
1336 is %D which doesn't print the throw specs, and %F which does. */
1339 dump_function_decl (tree t, int flags)
1343 tree cname = NULL_TREE;
1344 tree template_args = NULL_TREE;
1345 tree template_parms = NULL_TREE;
1346 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1347 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1349 vec<tree, va_gc> *typenames = NULL;
1351 if (DECL_NAME (t) && LAMBDA_FUNCTION_P (t))
1353 /* A lambda's signature is essentially its "type", so defer. */
1354 gcc_assert (LAMBDA_TYPE_P (DECL_CONTEXT (t)));
1355 dump_type (DECL_CONTEXT (t), flags);
1359 flags &= ~(TFF_UNQUALIFIED_NAME | TFF_TEMPLATE_NAME);
1360 if (TREE_CODE (t) == TEMPLATE_DECL)
1361 t = DECL_TEMPLATE_RESULT (t);
1363 /* Save the exceptions, in case t is a specialization and we are
1364 emitting an error about incompatible specifications. */
1365 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1367 /* Pretty print template instantiations only. */
1368 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1369 && flag_pretty_templates)
1373 template_args = DECL_TI_ARGS (t);
1374 tmpl = most_general_template (t);
1375 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1377 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1379 typenames = find_typenames (t);
1383 fntype = TREE_TYPE (t);
1384 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1386 if (DECL_CLASS_SCOPE_P (t))
1387 cname = DECL_CONTEXT (t);
1388 /* This is for partially instantiated template methods. */
1389 else if (TREE_CODE (fntype) == METHOD_TYPE)
1390 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1392 if (flags & TFF_DECL_SPECIFIERS)
1394 if (DECL_STATIC_FUNCTION_P (t))
1395 pp_cxx_ws_string (cxx_pp, "static");
1396 else if (DECL_VIRTUAL_P (t))
1397 pp_cxx_ws_string (cxx_pp, "virtual");
1399 if (DECL_DECLARED_CONSTEXPR_P (STRIP_TEMPLATE (t)))
1400 pp_cxx_ws_string (cxx_pp, "constexpr");
1403 /* Print the return type? */
1405 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1406 && !DECL_DESTRUCTOR_P (t);
1408 dump_type_prefix (TREE_TYPE (fntype), flags);
1410 /* Print the function name. */
1411 if (!do_outer_scope)
1415 dump_type (cname, flags);
1416 pp_cxx_colon_colon (cxx_pp);
1419 dump_scope (CP_DECL_CONTEXT (t), flags);
1421 dump_function_name (t, flags);
1423 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1425 dump_parameters (parmtypes, flags);
1427 if (TREE_CODE (fntype) == METHOD_TYPE)
1429 pp_base (cxx_pp)->padding = pp_before;
1430 pp_cxx_cv_qualifier_seq (cxx_pp, class_of_this_parm (fntype));
1431 dump_ref_qualifier (fntype, flags);
1434 if (flags & TFF_EXCEPTION_SPECIFICATION)
1436 pp_base (cxx_pp)->padding = pp_before;
1437 dump_exception_spec (exceptions, flags);
1441 dump_type_suffix (TREE_TYPE (fntype), flags);
1443 /* If T is a template instantiation, dump the parameter binding. */
1444 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1446 pp_cxx_whitespace (cxx_pp);
1447 pp_cxx_left_bracket (cxx_pp);
1448 pp_cxx_ws_string (cxx_pp, M_("with"));
1449 pp_cxx_whitespace (cxx_pp);
1450 dump_template_bindings (template_parms, template_args, typenames);
1451 pp_cxx_right_bracket (cxx_pp);
1454 else if (template_args)
1456 bool need_comma = false;
1458 pp_cxx_begin_template_argument_list (cxx_pp);
1459 template_args = INNERMOST_TEMPLATE_ARGS (template_args);
1460 for (i = 0; i < TREE_VEC_LENGTH (template_args); ++i)
1462 tree arg = TREE_VEC_ELT (template_args, i);
1464 pp_separate_with_comma (cxx_pp);
1465 if (ARGUMENT_PACK_P (arg))
1466 pp_cxx_left_brace (cxx_pp);
1467 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
1468 if (ARGUMENT_PACK_P (arg))
1469 pp_cxx_right_brace (cxx_pp);
1472 pp_cxx_end_template_argument_list (cxx_pp);
1476 /* Print a parameter list. If this is for a member function, the
1477 member object ptr (and any other hidden args) should have
1478 already been removed. */
1481 dump_parameters (tree parmtypes, int flags)
1484 flags &= ~TFF_SCOPE;
1485 pp_cxx_left_paren (cxx_pp);
1487 for (first = 1; parmtypes != void_list_node;
1488 parmtypes = TREE_CHAIN (parmtypes))
1491 pp_separate_with_comma (cxx_pp);
1495 pp_cxx_ws_string (cxx_pp, "...");
1499 dump_type (TREE_VALUE (parmtypes), flags);
1501 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1503 pp_cxx_whitespace (cxx_pp);
1505 pp_cxx_whitespace (cxx_pp);
1506 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1510 pp_cxx_right_paren (cxx_pp);
1513 /* Print ref-qualifier of a FUNCTION_TYPE or METHOD_TYPE. FLAGS are ignored. */
1516 dump_ref_qualifier (tree t, int flags ATTRIBUTE_UNUSED)
1518 if (FUNCTION_REF_QUALIFIED (t))
1520 pp_base (cxx_pp)->padding = pp_before;
1521 if (FUNCTION_RVALUE_QUALIFIED (t))
1522 pp_cxx_ws_string (cxx_pp, "&&");
1524 pp_cxx_ws_string (cxx_pp, "&");
1528 /* Print an exception specification. T is the exception specification. */
1531 dump_exception_spec (tree t, int flags)
1533 if (t && TREE_PURPOSE (t))
1535 pp_cxx_ws_string (cxx_pp, "noexcept");
1536 pp_cxx_whitespace (cxx_pp);
1537 pp_cxx_left_paren (cxx_pp);
1538 if (DEFERRED_NOEXCEPT_SPEC_P (t))
1539 pp_cxx_ws_string (cxx_pp, "<uninstantiated>");
1541 dump_expr (TREE_PURPOSE (t), flags);
1542 pp_cxx_right_paren (cxx_pp);
1546 pp_cxx_ws_string (cxx_pp, "throw");
1547 pp_cxx_whitespace (cxx_pp);
1548 pp_cxx_left_paren (cxx_pp);
1549 if (TREE_VALUE (t) != NULL_TREE)
1552 dump_type (TREE_VALUE (t), flags);
1556 pp_separate_with_comma (cxx_pp);
1558 pp_cxx_right_paren (cxx_pp);
1562 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1563 and destructors properly. */
1566 dump_function_name (tree t, int flags)
1568 tree name = DECL_NAME (t);
1570 /* We can get here with a decl that was synthesized by language-
1571 independent machinery (e.g. coverage.c) in which case it won't
1572 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1573 will crash. In this case it is safe just to print out the
1575 if (!DECL_LANG_SPECIFIC (t))
1577 pp_cxx_tree_identifier (cxx_pp, name);
1581 if (TREE_CODE (t) == TEMPLATE_DECL)
1582 t = DECL_TEMPLATE_RESULT (t);
1584 /* Don't let the user see __comp_ctor et al. */
1585 if (DECL_CONSTRUCTOR_P (t)
1586 || DECL_DESTRUCTOR_P (t))
1588 if (LAMBDA_TYPE_P (DECL_CONTEXT (t)))
1589 name = get_identifier ("<lambda>");
1590 else if (TYPE_ANONYMOUS_P (DECL_CONTEXT (t)))
1591 name = get_identifier ("<constructor>");
1593 name = constructor_name (DECL_CONTEXT (t));
1596 if (DECL_DESTRUCTOR_P (t))
1598 pp_cxx_complement (cxx_pp);
1599 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1601 else if (DECL_CONV_FN_P (t))
1603 /* This cannot use the hack that the operator's return
1604 type is stashed off of its name because it may be
1605 used for error reporting. In the case of conflicting
1606 declarations, both will have the same name, yet
1607 the types will be different, hence the TREE_TYPE field
1608 of the first name will be clobbered by the second. */
1609 pp_cxx_ws_string (cxx_pp, "operator");
1610 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1612 else if (name && IDENTIFIER_OPNAME_P (name))
1613 pp_cxx_tree_identifier (cxx_pp, name);
1614 else if (name && UDLIT_OPER_P (name))
1615 pp_cxx_tree_identifier (cxx_pp, name);
1617 dump_decl (name, flags);
1619 if (DECL_TEMPLATE_INFO (t)
1620 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1621 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1622 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1623 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1626 /* Dump the template parameters from the template info INFO under control of
1627 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1628 specialization (partial or complete). For partial specializations we show
1629 the specialized parameter values. For a primary template we show no
1633 dump_template_parms (tree info, int primary, int flags)
1635 tree args = info ? TI_ARGS (info) : NULL_TREE;
1637 if (primary && flags & TFF_TEMPLATE_NAME)
1639 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1640 pp_cxx_begin_template_argument_list (cxx_pp);
1642 /* Be careful only to print things when we have them, so as not
1643 to crash producing error messages. */
1644 if (args && !primary)
1647 len = get_non_default_template_args_count (args, flags);
1649 args = INNERMOST_TEMPLATE_ARGS (args);
1650 for (ix = 0; ix != len; ix++)
1652 tree arg = TREE_VEC_ELT (args, ix);
1654 /* Only print a comma if we know there is an argument coming. In
1655 the case of an empty template argument pack, no actual
1656 argument will be printed. */
1658 && (!ARGUMENT_PACK_P (arg)
1659 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1660 pp_separate_with_comma (cxx_pp);
1663 pp_string (cxx_pp, M_("<template parameter error>"));
1665 dump_template_argument (arg, flags);
1670 tree tpl = TI_TEMPLATE (info);
1671 tree parms = DECL_TEMPLATE_PARMS (tpl);
1674 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1675 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1677 for (ix = 0; ix != len; ix++)
1681 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1683 pp_string (cxx_pp, M_("<template parameter error>"));
1687 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1690 pp_separate_with_comma (cxx_pp);
1692 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1695 pp_cxx_end_template_argument_list (cxx_pp);
1698 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1699 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1702 dump_call_expr_args (tree t, int flags, bool skipfirst)
1705 call_expr_arg_iterator iter;
1707 pp_cxx_left_paren (cxx_pp);
1708 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1714 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1715 if (more_call_expr_args_p (&iter))
1716 pp_separate_with_comma (cxx_pp);
1719 pp_cxx_right_paren (cxx_pp);
1722 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1723 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1727 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1730 aggr_init_expr_arg_iterator iter;
1732 pp_cxx_left_paren (cxx_pp);
1733 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1739 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1740 if (more_aggr_init_expr_args_p (&iter))
1741 pp_separate_with_comma (cxx_pp);
1744 pp_cxx_right_paren (cxx_pp);
1747 /* Print out a list of initializers (subr of dump_expr). */
1750 dump_expr_list (tree l, int flags)
1754 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1757 pp_separate_with_comma (cxx_pp);
1761 /* Print out a vector of initializers (subr of dump_expr). */
1764 dump_expr_init_vec (vec<constructor_elt, va_gc> *v, int flags)
1766 unsigned HOST_WIDE_INT idx;
1769 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1771 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1772 if (idx != v->length () - 1)
1773 pp_separate_with_comma (cxx_pp);
1778 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1779 function. Resolve it to a close relative -- in the sense of static
1780 type -- variant being overridden. That is close to what was written in
1781 the source code. Subroutine of dump_expr. */
1784 resolve_virtual_fun_from_obj_type_ref (tree ref)
1786 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1787 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1788 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1791 fun = TREE_CHAIN (fun);
1792 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1793 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1799 /* Print out an expression E under control of FLAGS. */
1802 dump_expr (tree t, int flags)
1807 if (STATEMENT_CLASS_P (t))
1809 pp_cxx_ws_string (cxx_pp, M_("<statement>"));
1813 switch (TREE_CODE (t))
1821 case NAMESPACE_DECL:
1825 case IDENTIFIER_NODE:
1826 dump_decl (t, ((flags & ~(TFF_DECL_SPECIFIERS|TFF_RETURN_TYPE
1827 |TFF_TEMPLATE_HEADER))
1828 | TFF_NO_FUNCTION_ARGUMENTS));
1832 if (SSA_NAME_VAR (t)
1833 && !DECL_ARTIFICIAL (SSA_NAME_VAR (t)))
1834 dump_expr (SSA_NAME_VAR (t), flags);
1836 pp_cxx_ws_string (cxx_pp, M_("<unknown>"));
1843 pp_constant (cxx_pp, t);
1846 case USERDEF_LITERAL:
1847 pp_cxx_userdef_literal (cxx_pp, t);
1851 /* While waiting for caret diagnostics, avoid printing
1852 __cxa_allocate_exception, __cxa_throw, and the like. */
1853 pp_cxx_ws_string (cxx_pp, M_("<throw-expression>"));
1857 pp_ampersand (cxx_pp);
1858 dump_type (PTRMEM_CST_CLASS (t), flags);
1859 pp_cxx_colon_colon (cxx_pp);
1860 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1864 pp_cxx_left_paren (cxx_pp);
1865 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1866 pp_separate_with_comma (cxx_pp);
1867 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1868 pp_cxx_right_paren (cxx_pp);
1872 pp_cxx_left_paren (cxx_pp);
1873 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1874 pp_string (cxx_pp, " ? ");
1875 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1876 pp_string (cxx_pp, " : ");
1877 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1878 pp_cxx_right_paren (cxx_pp);
1882 if (TREE_HAS_CONSTRUCTOR (t))
1884 pp_cxx_ws_string (cxx_pp, "new");
1885 pp_cxx_whitespace (cxx_pp);
1886 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1889 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1892 case AGGR_INIT_EXPR:
1894 tree fn = NULL_TREE;
1896 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1897 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1899 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1901 if (DECL_CONSTRUCTOR_P (fn))
1902 dump_type (DECL_CONTEXT (fn), flags);
1907 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1909 dump_aggr_init_expr_args (t, flags, true);
1914 tree fn = CALL_EXPR_FN (t);
1915 bool skipfirst = false;
1917 if (TREE_CODE (fn) == ADDR_EXPR)
1918 fn = TREE_OPERAND (fn, 0);
1920 /* Nobody is interested in seeing the guts of vcalls. */
1921 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1922 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1924 if (TREE_TYPE (fn) != NULL_TREE
1925 && NEXT_CODE (fn) == METHOD_TYPE
1926 && call_expr_nargs (t))
1928 tree ob = CALL_EXPR_ARG (t, 0);
1929 if (TREE_CODE (ob) == ADDR_EXPR)
1931 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1932 pp_cxx_dot (cxx_pp);
1934 else if (TREE_CODE (ob) != PARM_DECL
1935 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1937 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1938 pp_cxx_arrow (cxx_pp);
1942 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1943 dump_call_expr_args (t, flags, skipfirst);
1948 /* Note that this only works for G++ target exprs. If somebody
1949 builds a general TARGET_EXPR, there's no way to represent that
1950 it initializes anything other that the parameter slot for the
1951 default argument. Note we may have cleared out the first
1952 operand in expand_expr, so don't go killing ourselves. */
1953 if (TREE_OPERAND (t, 1))
1954 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1957 case POINTER_PLUS_EXPR:
1958 dump_binary_op ("+", t, flags);
1963 dump_binary_op (assignment_operator_name_info[(int)NOP_EXPR].name,
1970 case TRUNC_DIV_EXPR:
1971 case TRUNC_MOD_EXPR:
1979 case TRUTH_ANDIF_EXPR:
1980 case TRUTH_ORIF_EXPR:
1987 case EXACT_DIV_EXPR:
1988 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1992 case FLOOR_DIV_EXPR:
1993 case ROUND_DIV_EXPR:
1995 dump_binary_op ("/", t, flags);
1999 case FLOOR_MOD_EXPR:
2000 case ROUND_MOD_EXPR:
2001 dump_binary_op ("%", t, flags);
2006 tree ob = TREE_OPERAND (t, 0);
2007 if (TREE_CODE (ob) == INDIRECT_REF)
2009 ob = TREE_OPERAND (ob, 0);
2010 if (TREE_CODE (ob) != PARM_DECL
2012 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
2014 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2015 if (TREE_CODE (TREE_TYPE (ob)) == REFERENCE_TYPE)
2016 pp_cxx_dot (cxx_pp);
2018 pp_cxx_arrow (cxx_pp);
2023 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2024 pp_cxx_dot (cxx_pp);
2026 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
2031 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2032 pp_cxx_left_bracket (cxx_pp);
2033 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2034 pp_cxx_right_bracket (cxx_pp);
2037 case UNARY_PLUS_EXPR:
2038 dump_unary_op ("+", t, flags);
2042 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
2043 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
2044 /* An ADDR_EXPR can have reference type. In that case, we
2045 shouldn't print the `&' doing so indicates to the user
2046 that the expression has pointer type. */
2048 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
2049 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2050 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
2051 dump_unary_op ("&&", t, flags);
2053 dump_unary_op ("&", t, flags);
2057 if (TREE_HAS_CONSTRUCTOR (t))
2059 t = TREE_OPERAND (t, 0);
2060 gcc_assert (TREE_CODE (t) == CALL_EXPR);
2061 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
2062 dump_call_expr_args (t, flags, true);
2066 if (TREE_OPERAND (t,0) != NULL_TREE
2067 && TREE_TYPE (TREE_OPERAND (t, 0))
2068 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
2069 dump_expr (TREE_OPERAND (t, 0), flags);
2071 dump_unary_op ("*", t, flags);
2076 if (TREE_CODE (TREE_OPERAND (t, 0)) == ADDR_EXPR
2077 && integer_zerop (TREE_OPERAND (t, 1)))
2078 dump_expr (TREE_OPERAND (TREE_OPERAND (t, 0), 0), flags);
2081 pp_cxx_star (cxx_pp);
2082 if (!integer_zerop (TREE_OPERAND (t, 1)))
2084 pp_cxx_left_paren (cxx_pp);
2085 if (!integer_onep (TYPE_SIZE_UNIT
2086 (TREE_TYPE (TREE_TYPE (TREE_OPERAND (t, 0))))))
2088 pp_cxx_left_paren (cxx_pp);
2089 dump_type (ptr_type_node, flags);
2090 pp_cxx_right_paren (cxx_pp);
2093 dump_expr (TREE_OPERAND (t, 0), flags);
2094 if (!integer_zerop (TREE_OPERAND (t, 1)))
2096 pp_cxx_ws_string (cxx_pp, "+");
2097 dump_expr (fold_convert (ssizetype, TREE_OPERAND (t, 1)), flags);
2098 pp_cxx_right_paren (cxx_pp);
2105 case TRUTH_NOT_EXPR:
2106 case PREDECREMENT_EXPR:
2107 case PREINCREMENT_EXPR:
2108 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
2111 case POSTDECREMENT_EXPR:
2112 case POSTINCREMENT_EXPR:
2113 pp_cxx_left_paren (cxx_pp);
2114 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2115 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
2116 pp_cxx_right_paren (cxx_pp);
2119 case NON_LVALUE_EXPR:
2120 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
2121 should be another level of INDIRECT_REF so that I don't have to do
2123 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
2125 tree next = TREE_TYPE (TREE_TYPE (t));
2127 while (TREE_CODE (next) == POINTER_TYPE)
2128 next = TREE_TYPE (next);
2130 if (TREE_CODE (next) == FUNCTION_TYPE)
2132 if (flags & TFF_EXPR_IN_PARENS)
2133 pp_cxx_left_paren (cxx_pp);
2134 pp_cxx_star (cxx_pp);
2135 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2136 if (flags & TFF_EXPR_IN_PARENS)
2137 pp_cxx_right_paren (cxx_pp);
2140 /* Else fall through. */
2142 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2146 case IMPLICIT_CONV_EXPR:
2147 case VIEW_CONVERT_EXPR:
2149 tree op = TREE_OPERAND (t, 0);
2150 tree ttype = TREE_TYPE (t);
2151 tree optype = TREE_TYPE (op);
2153 if (TREE_CODE (ttype) != TREE_CODE (optype)
2154 && POINTER_TYPE_P (ttype)
2155 && POINTER_TYPE_P (optype)
2156 && same_type_p (TREE_TYPE (optype),
2159 if (TREE_CODE (ttype) == REFERENCE_TYPE)
2160 dump_unary_op ("*", t, flags);
2162 dump_unary_op ("&", t, flags);
2164 else if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
2166 /* It is a cast, but we cannot tell whether it is a
2167 reinterpret or static cast. Use the C style notation. */
2168 if (flags & TFF_EXPR_IN_PARENS)
2169 pp_cxx_left_paren (cxx_pp);
2170 pp_cxx_left_paren (cxx_pp);
2171 dump_type (TREE_TYPE (t), flags);
2172 pp_cxx_right_paren (cxx_pp);
2173 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
2174 if (flags & TFF_EXPR_IN_PARENS)
2175 pp_cxx_right_paren (cxx_pp);
2178 dump_expr (op, flags);
2183 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
2185 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
2187 if (integer_zerop (idx))
2189 /* A NULL pointer-to-member constant. */
2190 pp_cxx_left_paren (cxx_pp);
2191 pp_cxx_left_paren (cxx_pp);
2192 dump_type (TREE_TYPE (t), flags);
2193 pp_cxx_right_paren (cxx_pp);
2194 pp_character (cxx_pp, '0');
2195 pp_cxx_right_paren (cxx_pp);
2198 else if (host_integerp (idx, 0))
2201 unsigned HOST_WIDE_INT n;
2203 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
2204 t = TYPE_METHOD_BASETYPE (t);
2205 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
2207 n = tree_low_cst (idx, 0);
2209 /* Map vtable index back one, to allow for the null pointer to
2213 while (n > 0 && virtuals)
2216 virtuals = TREE_CHAIN (virtuals);
2220 dump_expr (BV_FN (virtuals),
2221 flags | TFF_EXPR_IN_PARENS);
2226 if (TREE_TYPE (t) && LAMBDA_TYPE_P (TREE_TYPE (t)))
2227 pp_string (cxx_pp, "<lambda closure object>");
2228 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
2230 dump_type (TREE_TYPE (t), 0);
2231 pp_cxx_left_paren (cxx_pp);
2232 pp_cxx_right_paren (cxx_pp);
2236 if (!BRACE_ENCLOSED_INITIALIZER_P (t))
2237 dump_type (TREE_TYPE (t), 0);
2238 pp_cxx_left_brace (cxx_pp);
2239 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
2240 pp_cxx_right_brace (cxx_pp);
2247 tree ob = TREE_OPERAND (t, 0);
2248 if (is_dummy_object (ob))
2250 t = TREE_OPERAND (t, 1);
2251 if (TREE_CODE (t) == FUNCTION_DECL)
2253 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
2254 else if (BASELINK_P (t))
2255 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
2256 flags | TFF_EXPR_IN_PARENS);
2258 dump_decl (t, flags);
2262 if (TREE_CODE (ob) == INDIRECT_REF)
2264 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
2265 pp_cxx_arrow (cxx_pp);
2266 pp_cxx_star (cxx_pp);
2270 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2271 pp_cxx_dot (cxx_pp);
2272 pp_cxx_star (cxx_pp);
2274 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2279 case TEMPLATE_PARM_INDEX:
2280 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2284 if (TREE_OPERAND (t, 0) == NULL_TREE
2285 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2287 dump_type (TREE_TYPE (t), flags);
2288 pp_cxx_left_paren (cxx_pp);
2289 dump_expr_list (TREE_OPERAND (t, 0), flags);
2290 pp_cxx_right_paren (cxx_pp);
2294 pp_cxx_left_paren (cxx_pp);
2295 dump_type (TREE_TYPE (t), flags);
2296 pp_cxx_right_paren (cxx_pp);
2297 pp_cxx_left_paren (cxx_pp);
2298 dump_expr_list (TREE_OPERAND (t, 0), flags);
2299 pp_cxx_right_paren (cxx_pp);
2303 case STATIC_CAST_EXPR:
2304 pp_cxx_ws_string (cxx_pp, "static_cast");
2306 case REINTERPRET_CAST_EXPR:
2307 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2309 case CONST_CAST_EXPR:
2310 pp_cxx_ws_string (cxx_pp, "const_cast");
2312 case DYNAMIC_CAST_EXPR:
2313 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2315 pp_cxx_begin_template_argument_list (cxx_pp);
2316 dump_type (TREE_TYPE (t), flags);
2317 pp_cxx_end_template_argument_list (cxx_pp);
2318 pp_cxx_left_paren (cxx_pp);
2319 dump_expr (TREE_OPERAND (t, 0), flags);
2320 pp_cxx_right_paren (cxx_pp);
2324 dump_expr (TREE_OPERAND (t, 0), flags);
2325 pp_cxx_arrow (cxx_pp);
2330 if (TREE_CODE (t) == SIZEOF_EXPR)
2331 pp_cxx_ws_string (cxx_pp, "sizeof");
2334 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2335 pp_cxx_ws_string (cxx_pp, "__alignof__");
2337 pp_cxx_whitespace (cxx_pp);
2338 pp_cxx_left_paren (cxx_pp);
2339 if (TREE_CODE (t) == SIZEOF_EXPR && SIZEOF_EXPR_TYPE_P (t))
2340 dump_type (TREE_TYPE (TREE_OPERAND (t, 0)), flags);
2341 else if (TYPE_P (TREE_OPERAND (t, 0)))
2342 dump_type (TREE_OPERAND (t, 0), flags);
2344 dump_expr (TREE_OPERAND (t, 0), flags);
2345 pp_cxx_right_paren (cxx_pp);
2348 case AT_ENCODE_EXPR:
2349 pp_cxx_ws_string (cxx_pp, "@encode");
2350 pp_cxx_whitespace (cxx_pp);
2351 pp_cxx_left_paren (cxx_pp);
2352 dump_type (TREE_OPERAND (t, 0), flags);
2353 pp_cxx_right_paren (cxx_pp);
2357 pp_cxx_ws_string (cxx_pp, "noexcept");
2358 pp_cxx_whitespace (cxx_pp);
2359 pp_cxx_left_paren (cxx_pp);
2360 dump_expr (TREE_OPERAND (t, 0), flags);
2361 pp_cxx_right_paren (cxx_pp);
2366 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2367 pp_cxx_whitespace (cxx_pp);
2368 dump_expr (TREE_OPERAND (t, 0), flags);
2372 pp_string (cxx_pp, M_("<unparsed>"));
2375 case TRY_CATCH_EXPR:
2376 case WITH_CLEANUP_EXPR:
2377 case CLEANUP_POINT_EXPR:
2378 dump_expr (TREE_OPERAND (t, 0), flags);
2381 case PSEUDO_DTOR_EXPR:
2382 dump_expr (TREE_OPERAND (t, 2), flags);
2383 pp_cxx_dot (cxx_pp);
2384 dump_type (TREE_OPERAND (t, 0), flags);
2385 pp_cxx_colon_colon (cxx_pp);
2386 pp_cxx_complement (cxx_pp);
2387 dump_type (TREE_OPERAND (t, 1), flags);
2390 case TEMPLATE_ID_EXPR:
2391 dump_decl (t, flags);
2397 case STATEMENT_LIST:
2398 /* We don't yet have a way of dumping statements in a
2399 human-readable format. */
2400 pp_string (cxx_pp, "({...})");
2404 pp_string (cxx_pp, "while (1) { ");
2405 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2406 pp_cxx_right_brace (cxx_pp);
2410 pp_string (cxx_pp, "if (");
2411 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2412 pp_string (cxx_pp, ") break; ");
2416 dump_expr (BASELINK_FUNCTIONS (t), flags & ~TFF_EXPR_IN_PARENS);
2419 case EMPTY_CLASS_EXPR:
2420 dump_type (TREE_TYPE (t), flags);
2421 pp_cxx_left_paren (cxx_pp);
2422 pp_cxx_right_paren (cxx_pp);
2425 case NON_DEPENDENT_EXPR:
2426 dump_expr (TREE_OPERAND (t, 0), flags);
2429 case ARGUMENT_PACK_SELECT:
2430 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2442 pp_type_specifier_seq (cxx_pp, t);
2446 /* We get here when we want to print a dependent type as an
2447 id-expression, without any disambiguator decoration. */
2448 pp_id_expression (cxx_pp, t);
2451 case TEMPLATE_TYPE_PARM:
2452 case TEMPLATE_TEMPLATE_PARM:
2453 case BOUND_TEMPLATE_TEMPLATE_PARM:
2454 dump_type (t, flags);
2458 pp_cxx_trait_expression (cxx_pp, t);
2462 pp_cxx_va_arg_expression (cxx_pp, t);
2466 pp_cxx_offsetof_expression (cxx_pp, t);
2470 dump_decl (t, flags);
2473 case EXPR_PACK_EXPANSION:
2480 case VEC_DELETE_EXPR:
2486 case UNORDERED_EXPR:
2496 case FIX_TRUNC_EXPR:
2498 pp_expression (cxx_pp, t);
2501 case TRUTH_AND_EXPR:
2503 case TRUTH_XOR_EXPR:
2504 if (flags & TFF_EXPR_IN_PARENS)
2505 pp_cxx_left_paren (cxx_pp);
2506 pp_expression (cxx_pp, t);
2507 if (flags & TFF_EXPR_IN_PARENS)
2508 pp_cxx_right_paren (cxx_pp);
2512 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2516 pp_string (cxx_pp, M_("<lambda>"));
2519 /* This list is incomplete, but should suffice for now.
2520 It is very important that `sorry' does not call
2521 `report_error_function'. That could cause an infinite loop. */
2523 pp_unsupported_tree (cxx_pp, t);
2524 /* fall through to ERROR_MARK... */
2526 pp_string (cxx_pp, M_("<expression error>"));
2532 dump_binary_op (const char *opstring, tree t, int flags)
2534 pp_cxx_left_paren (cxx_pp);
2535 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2536 pp_cxx_whitespace (cxx_pp);
2538 pp_cxx_ws_string (cxx_pp, opstring);
2540 pp_string (cxx_pp, M_("<unknown operator>"));
2541 pp_cxx_whitespace (cxx_pp);
2542 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2543 pp_cxx_right_paren (cxx_pp);
2547 dump_unary_op (const char *opstring, tree t, int flags)
2549 if (flags & TFF_EXPR_IN_PARENS)
2550 pp_cxx_left_paren (cxx_pp);
2551 pp_cxx_ws_string (cxx_pp, opstring);
2552 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2553 if (flags & TFF_EXPR_IN_PARENS)
2554 pp_cxx_right_paren (cxx_pp);
2558 reinit_cxx_pp (void)
2560 pp_clear_output_area (cxx_pp);
2561 pp_base (cxx_pp)->padding = pp_none;
2562 pp_indentation (cxx_pp) = 0;
2563 pp_needs_newline (cxx_pp) = false;
2564 cxx_pp->enclosing_scope = current_function_decl;
2568 /* Exported interface to stringifying types, exprs and decls under TFF_*
2572 type_as_string (tree typ, int flags)
2575 pp_translate_identifiers (cxx_pp) = false;
2576 dump_type (typ, flags);
2577 return pp_formatted_text (cxx_pp);
2581 type_as_string_translate (tree typ, int flags)
2584 dump_type (typ, flags);
2585 return pp_formatted_text (cxx_pp);
2589 expr_as_string (tree decl, int flags)
2592 pp_translate_identifiers (cxx_pp) = false;
2593 dump_expr (decl, flags);
2594 return pp_formatted_text (cxx_pp);
2597 /* Wrap decl_as_string with options appropriate for dwarf. */
2600 decl_as_dwarf_string (tree decl, int flags)
2603 /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
2604 here will be adequate to get the desired behaviour. */
2605 pp_c_base (cxx_pp)->flags |= pp_c_flag_gnu_v3;
2606 name = decl_as_string (decl, flags);
2607 /* Subsequent calls to the pretty printer shouldn't use this style. */
2608 pp_c_base (cxx_pp)->flags &= ~pp_c_flag_gnu_v3;
2613 decl_as_string (tree decl, int flags)
2616 pp_translate_identifiers (cxx_pp) = false;
2617 dump_decl (decl, flags);
2618 return pp_formatted_text (cxx_pp);
2622 decl_as_string_translate (tree decl, int flags)
2625 dump_decl (decl, flags);
2626 return pp_formatted_text (cxx_pp);
2629 /* Wrap lang_decl_name with options appropriate for dwarf. */
2632 lang_decl_dwarf_name (tree decl, int v, bool translate)
2635 /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
2636 here will be adequate to get the desired behaviour. */
2637 pp_c_base (cxx_pp)->flags |= pp_c_flag_gnu_v3;
2638 name = lang_decl_name (decl, v, translate);
2639 /* Subsequent calls to the pretty printer shouldn't use this style. */
2640 pp_c_base (cxx_pp)->flags &= ~pp_c_flag_gnu_v3;
2644 /* Generate the three forms of printable names for cxx_printable_name. */
2647 lang_decl_name (tree decl, int v, bool translate)
2651 ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
2652 : decl_as_string (decl, TFF_DECL_SPECIFIERS));
2655 pp_translate_identifiers (cxx_pp) = translate;
2657 && (DECL_CLASS_SCOPE_P (decl)
2658 || (DECL_NAMESPACE_SCOPE_P (decl)
2659 && CP_DECL_CONTEXT (decl) != global_namespace)))
2661 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2662 pp_cxx_colon_colon (cxx_pp);
2665 if (TREE_CODE (decl) == FUNCTION_DECL)
2666 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2667 else if ((DECL_NAME (decl) == NULL_TREE)
2668 && TREE_CODE (decl) == NAMESPACE_DECL)
2669 dump_decl (decl, TFF_PLAIN_IDENTIFIER | TFF_UNQUALIFIED_NAME);
2671 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2673 return pp_formatted_text (cxx_pp);
2676 /* Return the location of a tree passed to %+ formats. */
2679 location_of (tree t)
2681 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2682 t = DECL_CONTEXT (t);
2683 else if (TYPE_P (t))
2685 t = TYPE_MAIN_DECL (t);
2687 return input_location;
2689 else if (TREE_CODE (t) == OVERLOAD)
2690 t = OVL_FUNCTION (t);
2693 return DECL_SOURCE_LOCATION (t);
2694 return EXPR_LOC_OR_HERE (t);
2697 /* Now the interfaces from error et al to dump_type et al. Each takes an
2698 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2702 decl_to_string (tree decl, int verbose)
2706 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2707 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2708 flags = TFF_CLASS_KEY_OR_ENUM;
2710 flags |= TFF_DECL_SPECIFIERS;
2711 else if (TREE_CODE (decl) == FUNCTION_DECL)
2712 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2713 flags |= TFF_TEMPLATE_HEADER;
2716 dump_decl (decl, flags);
2717 return pp_formatted_text (cxx_pp);
2721 expr_to_string (tree decl)
2724 dump_expr (decl, 0);
2725 return pp_formatted_text (cxx_pp);
2729 fndecl_to_string (tree fndecl, int verbose)
2733 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2734 | TFF_TEMPLATE_HEADER;
2736 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2738 dump_decl (fndecl, flags);
2739 return pp_formatted_text (cxx_pp);
2744 code_to_string (enum tree_code c)
2746 return tree_code_name [c];
2750 language_to_string (enum languages c)
2757 case lang_cplusplus:
2769 /* Return the proper printed version of a parameter to a C++ function. */
2772 parm_to_string (int p)
2776 pp_string (cxx_pp, "'this'");
2778 pp_decimal_int (cxx_pp, p + 1);
2779 return pp_formatted_text (cxx_pp);
2783 op_to_string (enum tree_code p)
2785 tree id = operator_name_info[(int) p].identifier;
2786 return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
2790 type_to_string (tree typ, int verbose)
2794 flags |= TFF_CLASS_KEY_OR_ENUM;
2795 flags |= TFF_TEMPLATE_HEADER;
2798 dump_type (typ, flags);
2799 /* If we're printing a type that involves typedefs, also print the
2800 stripped version. But sometimes the stripped version looks
2801 exactly the same, so we don't want it after all. To avoid printing
2802 it in that case, we play ugly obstack games. */
2803 if (typ && TYPE_P (typ) && typ != TYPE_CANONICAL (typ)
2804 && !uses_template_parms (typ))
2806 int aka_start; char *p;
2807 struct obstack *ob = pp_base (cxx_pp)->buffer->obstack;
2808 /* Remember the end of the initial dump. */
2809 int len = obstack_object_size (ob);
2810 tree aka = strip_typedefs (typ);
2811 pp_string (cxx_pp, " {aka");
2812 pp_cxx_whitespace (cxx_pp);
2813 /* And remember the start of the aka dump. */
2814 aka_start = obstack_object_size (ob);
2815 dump_type (aka, flags);
2816 pp_character (cxx_pp, '}');
2817 p = (char*)obstack_base (ob);
2818 /* If they are identical, cut off the aka with a NUL. */
2819 if (memcmp (p, p+aka_start, len) == 0)
2822 return pp_formatted_text (cxx_pp);
2826 assop_to_string (enum tree_code p)
2828 tree id = assignment_operator_name_info[(int) p].identifier;
2829 return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
2833 args_to_string (tree p, int verbose)
2837 flags |= TFF_CLASS_KEY_OR_ENUM;
2842 if (TYPE_P (TREE_VALUE (p)))
2843 return type_as_string_translate (p, flags);
2846 for (; p; p = TREE_CHAIN (p))
2848 if (TREE_VALUE (p) == null_node)
2849 pp_cxx_ws_string (cxx_pp, "NULL");
2851 dump_type (error_type (TREE_VALUE (p)), flags);
2853 pp_separate_with_comma (cxx_pp);
2855 return pp_formatted_text (cxx_pp);
2858 /* Pretty-print a deduction substitution (from deduction_tsubst_fntype). P
2859 is a TREE_LIST with purpose the TEMPLATE_DECL, value the template
2863 subst_to_string (tree p)
2865 tree decl = TREE_PURPOSE (p);
2866 tree targs = TREE_VALUE (p);
2867 tree tparms = DECL_TEMPLATE_PARMS (decl);
2868 int flags = TFF_DECL_SPECIFIERS|TFF_TEMPLATE_HEADER;
2874 dump_template_decl (TREE_PURPOSE (p), flags);
2875 pp_cxx_whitespace (cxx_pp);
2876 pp_cxx_left_bracket (cxx_pp);
2877 pp_cxx_ws_string (cxx_pp, M_("with"));
2878 pp_cxx_whitespace (cxx_pp);
2879 dump_template_bindings (tparms, targs, NULL);
2880 pp_cxx_right_bracket (cxx_pp);
2881 return pp_formatted_text (cxx_pp);
2885 cv_to_string (tree p, int v)
2888 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2889 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2890 return pp_formatted_text (cxx_pp);
2893 /* Langhook for print_error_function. */
2895 cxx_print_error_function (diagnostic_context *context, const char *file,
2896 diagnostic_info *diagnostic)
2898 lhd_print_error_function (context, file, diagnostic);
2899 pp_base_set_prefix (context->printer, file);
2900 maybe_print_instantiation_context (context);
2904 cp_diagnostic_starter (diagnostic_context *context,
2905 diagnostic_info *diagnostic)
2907 diagnostic_report_current_module (context, diagnostic->location);
2908 cp_print_error_function (context, diagnostic);
2909 maybe_print_instantiation_context (context);
2910 maybe_print_constexpr_context (context);
2911 pp_base_set_prefix (context->printer, diagnostic_build_prefix (context,
2916 cp_diagnostic_finalizer (diagnostic_context *context,
2917 diagnostic_info *diagnostic)
2919 virt_loc_aware_diagnostic_finalizer (context, diagnostic);
2920 pp_base_destroy_prefix (context->printer);
2923 /* Print current function onto BUFFER, in the process of reporting
2924 a diagnostic message. Called from cp_diagnostic_starter. */
2926 cp_print_error_function (diagnostic_context *context,
2927 diagnostic_info *diagnostic)
2929 /* If we are in an instantiation context, current_function_decl is likely
2930 to be wrong, so just rely on print_instantiation_full_context. */
2931 if (current_instantiation ())
2933 if (diagnostic_last_function_changed (context, diagnostic))
2935 const char *old_prefix = context->printer->prefix;
2936 const char *file = LOCATION_FILE (diagnostic->location);
2937 tree abstract_origin = diagnostic_abstract_origin (diagnostic);
2938 char *new_prefix = (file && abstract_origin == NULL)
2939 ? file_name_as_prefix (file) : NULL;
2941 pp_base_set_prefix (context->printer, new_prefix);
2943 if (current_function_decl == NULL)
2944 pp_base_string (context->printer, _("At global scope:"));
2949 if (abstract_origin)
2951 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2952 while (TREE_CODE (ao) == BLOCK
2953 && BLOCK_ABSTRACT_ORIGIN (ao)
2954 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2955 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2956 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2960 fndecl = current_function_decl;
2962 pp_printf (context->printer, function_category (fndecl),
2963 cxx_printable_name_translate (fndecl, 2));
2965 while (abstract_origin)
2968 tree block = abstract_origin;
2970 locus = &BLOCK_SOURCE_LOCATION (block);
2972 block = BLOCK_SUPERCONTEXT (block);
2973 while (block && TREE_CODE (block) == BLOCK
2974 && BLOCK_ABSTRACT_ORIGIN (block))
2976 ao = BLOCK_ABSTRACT_ORIGIN (block);
2978 while (TREE_CODE (ao) == BLOCK
2979 && BLOCK_ABSTRACT_ORIGIN (ao)
2980 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2981 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2983 if (TREE_CODE (ao) == FUNCTION_DECL)
2988 else if (TREE_CODE (ao) != BLOCK)
2991 block = BLOCK_SUPERCONTEXT (block);
2994 abstract_origin = block;
2997 while (block && TREE_CODE (block) == BLOCK)
2998 block = BLOCK_SUPERCONTEXT (block);
3000 if (block && TREE_CODE (block) == FUNCTION_DECL)
3002 abstract_origin = NULL;
3006 expanded_location s = expand_location (*locus);
3007 pp_base_character (context->printer, ',');
3008 pp_base_newline (context->printer);
3011 if (context->show_column && s.column != 0)
3012 pp_printf (context->printer,
3013 _(" inlined from %qs at %s:%d:%d"),
3014 cxx_printable_name_translate (fndecl, 2),
3015 s.file, s.line, s.column);
3017 pp_printf (context->printer,
3018 _(" inlined from %qs at %s:%d"),
3019 cxx_printable_name_translate (fndecl, 2),
3024 pp_printf (context->printer, _(" inlined from %qs"),
3025 cxx_printable_name_translate (fndecl, 2));
3028 pp_base_character (context->printer, ':');
3030 pp_base_newline (context->printer);
3032 diagnostic_set_last_function (context, diagnostic);
3033 pp_base_destroy_prefix (context->printer);
3034 context->printer->prefix = old_prefix;
3038 /* Returns a description of FUNCTION using standard terminology. The
3039 result is a format string of the form "In CATEGORY %qs". */
3041 function_category (tree fn)
3043 /* We can get called from the middle-end for diagnostics of function
3044 clones. Make sure we have language specific information before
3045 dereferencing it. */
3046 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn))
3047 && DECL_FUNCTION_MEMBER_P (fn))
3049 if (DECL_STATIC_FUNCTION_P (fn))
3050 return _("In static member function %qs");
3051 else if (DECL_COPY_CONSTRUCTOR_P (fn))
3052 return _("In copy constructor %qs");
3053 else if (DECL_CONSTRUCTOR_P (fn))
3054 return _("In constructor %qs");
3055 else if (DECL_DESTRUCTOR_P (fn))
3056 return _("In destructor %qs");
3057 else if (LAMBDA_FUNCTION_P (fn))
3058 return _("In lambda function");
3060 return _("In member function %qs");
3063 return _("In function %qs");
3066 /* Report the full context of a current template instantiation,
3069 print_instantiation_full_context (diagnostic_context *context)
3071 struct tinst_level *p = current_instantiation ();
3072 location_t location = input_location;
3076 pp_verbatim (context->printer,
3077 TREE_CODE (p->decl) == TREE_LIST
3078 ? _("%s: In substitution of %qS:\n")
3079 : _("%s: In instantiation of %q#D:\n"),
3080 LOCATION_FILE (location),
3083 location = p->locus;
3087 print_instantiation_partial_context (context, p, location);
3090 /* Helper function of print_instantiation_partial_context() that
3091 prints a single line of instantiation context. */
3094 print_instantiation_partial_context_line (diagnostic_context *context,
3095 const struct tinst_level *t,
3096 location_t loc, bool recursive_p)
3098 expanded_location xloc;
3099 xloc = expand_location (loc);
3101 if (context->show_column)
3102 pp_verbatim (context->printer, _("%s:%d:%d: "),
3103 xloc.file, xloc.line, xloc.column);
3105 pp_verbatim (context->printer, _("%s:%d: "),
3106 xloc.file, xloc.line);
3110 if (TREE_CODE (t->decl) == TREE_LIST)
3111 pp_verbatim (context->printer,
3113 ? _("recursively required by substitution of %qS\n")
3114 : _("required by substitution of %qS\n"),
3117 pp_verbatim (context->printer,
3119 ? _("recursively required from %q#D\n")
3120 : _("required from %q#D\n"),
3125 pp_verbatim (context->printer,
3127 ? _("recursively required from here")
3128 : _("required from here"));
3132 /* Same as print_instantiation_full_context but less verbose. */
3135 print_instantiation_partial_context (diagnostic_context *context,
3136 struct tinst_level *t0, location_t loc)
3138 struct tinst_level *t;
3141 location_t prev_loc = loc;
3143 for (t = t0; t != NULL; t = t->next)
3144 if (prev_loc != t->locus)
3146 prev_loc = t->locus;
3152 if (template_backtrace_limit
3153 && n_total > template_backtrace_limit)
3155 int skip = n_total - template_backtrace_limit;
3156 int head = template_backtrace_limit / 2;
3158 /* Avoid skipping just 1. If so, skip 2. */
3162 head = (template_backtrace_limit - 1) / 2;
3165 for (n = 0; n < head; n++)
3167 gcc_assert (t != NULL);
3168 if (loc != t->locus)
3169 print_instantiation_partial_context_line (context, t, loc,
3170 /*recursive_p=*/false);
3174 if (t != NULL && skip > 0)
3176 expanded_location xloc;
3177 xloc = expand_location (loc);
3178 if (context->show_column)
3179 pp_verbatim (context->printer,
3180 _("%s:%d:%d: [ skipping %d instantiation contexts, "
3181 "use -ftemplate-backtrace-limit=0 to disable ]\n"),
3182 xloc.file, xloc.line, xloc.column, skip);
3184 pp_verbatim (context->printer,
3185 _("%s:%d: [ skipping %d instantiation contexts, "
3186 "use -ftemplate-backtrace-limit=0 to disable ]\n"),
3187 xloc.file, xloc.line, skip);
3192 } while (t != NULL && --skip > 0);
3198 while (t->next != NULL && t->locus == t->next->locus)
3203 print_instantiation_partial_context_line (context, t, loc,
3208 print_instantiation_partial_context_line (context, NULL, loc,
3209 /*recursive_p=*/false);
3210 pp_base_newline (context->printer);
3213 /* Called from cp_thing to print the template context for an error. */
3215 maybe_print_instantiation_context (diagnostic_context *context)
3217 if (!problematic_instantiation_changed () || current_instantiation () == 0)
3220 record_last_problematic_instantiation ();
3221 print_instantiation_full_context (context);
3224 /* Report the bare minimum context of a template instantiation. */
3226 print_instantiation_context (void)
3228 print_instantiation_partial_context
3229 (global_dc, current_instantiation (), input_location);
3230 pp_base_newline (global_dc->printer);
3231 diagnostic_flush_buffer (global_dc);
3234 /* Report what constexpr call(s) we're trying to expand, if any. */
3237 maybe_print_constexpr_context (diagnostic_context *context)
3239 vec<tree> call_stack = cx_error_context ();
3243 FOR_EACH_VEC_ELT (call_stack, ix, t)
3245 expanded_location xloc = expand_location (EXPR_LOCATION (t));
3246 const char *s = expr_as_string (t, 0);
3247 if (context->show_column)
3248 pp_verbatim (context->printer,
3249 _("%s:%d:%d: in constexpr expansion of %qs"),
3250 xloc.file, xloc.line, xloc.column, s);
3252 pp_verbatim (context->printer,
3253 _("%s:%d: in constexpr expansion of %qs"),
3254 xloc.file, xloc.line, s);
3255 pp_base_newline (context->printer);
3259 /* Called from output_format -- during diagnostic message processing --
3260 to handle C++ specific format specifier with the following meanings:
3261 %A function argument-list.
3265 %F function declaration.
3266 %L language as used in extern "lang".
3268 %P function parameter whose position is indicated by an integer.
3269 %Q assignment operator.
3273 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
3274 int precision, bool wide, bool set_locus, bool verbose)
3278 #define next_tree (t = va_arg (*text->args_ptr, tree))
3279 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
3280 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
3281 #define next_int va_arg (*text->args_ptr, int)
3283 if (precision != 0 || wide)
3286 if (text->locus == NULL)
3291 case 'A': result = args_to_string (next_tree, verbose); break;
3292 case 'C': result = code_to_string (next_tcode); break;
3295 tree temp = next_tree;
3297 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
3299 temp = DECL_DEBUG_EXPR (temp);
3302 result = expr_to_string (temp);
3306 result = decl_to_string (temp, verbose);
3309 case 'E': result = expr_to_string (next_tree); break;
3310 case 'F': result = fndecl_to_string (next_tree, verbose); break;
3311 case 'L': result = language_to_string (next_lang); break;
3312 case 'O': result = op_to_string (next_tcode); break;
3313 case 'P': result = parm_to_string (next_int); break;
3314 case 'Q': result = assop_to_string (next_tcode); break;
3315 case 'S': result = subst_to_string (next_tree); break;
3316 case 'T': result = type_to_string (next_tree, verbose); break;
3317 case 'V': result = cv_to_string (next_tree, verbose); break;
3320 percent_K_format (text);
3327 pp_base_string (pp, result);
3328 if (set_locus && t != NULL)
3329 *text->locus = location_of (t);
3337 /* Warn about the use of C++0x features when appropriate. */
3339 maybe_warn_cpp0x (cpp0x_warn_str str)
3341 if ((cxx_dialect == cxx98) && !in_system_header)
3342 /* We really want to suppress this warning in system headers,
3343 because libstdc++ uses variadic templates even when we aren't
3347 case CPP0X_INITIALIZER_LISTS:
3348 pedwarn (input_location, 0,
3349 "extended initializer lists "
3350 "only available with -std=c++11 or -std=gnu++11");
3352 case CPP0X_EXPLICIT_CONVERSION:
3353 pedwarn (input_location, 0,
3354 "explicit conversion operators "
3355 "only available with -std=c++11 or -std=gnu++11");
3357 case CPP0X_VARIADIC_TEMPLATES:
3358 pedwarn (input_location, 0,
3359 "variadic templates "
3360 "only available with -std=c++11 or -std=gnu++11");
3362 case CPP0X_LAMBDA_EXPR:
3363 pedwarn (input_location, 0,
3364 "lambda expressions "
3365 "only available with -std=c++11 or -std=gnu++11");
3368 pedwarn (input_location, 0,
3369 "C++11 auto only available with -std=c++11 or -std=gnu++11");
3371 case CPP0X_SCOPED_ENUMS:
3372 pedwarn (input_location, 0,
3373 "scoped enums only available with -std=c++11 or -std=gnu++11");
3375 case CPP0X_DEFAULTED_DELETED:
3376 pedwarn (input_location, 0,
3377 "defaulted and deleted functions "
3378 "only available with -std=c++11 or -std=gnu++11");
3380 case CPP0X_INLINE_NAMESPACES:
3381 pedwarn (input_location, OPT_Wpedantic,
3382 "inline namespaces "
3383 "only available with -std=c++11 or -std=gnu++11");
3385 case CPP0X_OVERRIDE_CONTROLS:
3386 pedwarn (input_location, 0,
3387 "override controls (override/final) "
3388 "only available with -std=c++11 or -std=gnu++11");
3391 pedwarn (input_location, 0,
3392 "non-static data member initializers "
3393 "only available with -std=c++11 or -std=gnu++11");
3395 case CPP0X_USER_DEFINED_LITERALS:
3396 pedwarn (input_location, 0,
3397 "user-defined literals "
3398 "only available with -std=c++11 or -std=gnu++11");
3400 case CPP0X_DELEGATING_CTORS:
3401 pedwarn (input_location, 0,
3402 "delegating constructors "
3403 "only available with -std=c++11 or -std=gnu++11");
3405 case CPP0X_INHERITING_CTORS:
3406 pedwarn (input_location, 0,
3407 "inheriting constructors "
3408 "only available with -std=c++11 or -std=gnu++11");
3410 case CPP0X_ATTRIBUTES:
3411 pedwarn (input_location, 0,
3413 "only available with -std=c++11 or -std=gnu++11");
3415 case CPP0X_REF_QUALIFIER:
3416 pedwarn (input_location, 0,
3418 "only available with -std=c++11 or -std=gnu++11");
3425 /* Warn about the use of variadic templates when appropriate. */
3427 maybe_warn_variadic_templates (void)
3429 maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES);
3433 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
3434 option OPT with text GMSGID. Use this function to report
3435 diagnostics for constructs that are invalid C++98, but valid
3438 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
3440 diagnostic_info diagnostic;
3444 va_start (ap, gmsgid);
3445 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
3446 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
3447 diagnostic.option_index = opt;
3448 ret = report_diagnostic (&diagnostic);
3453 /* Issue a diagnostic that NAME cannot be found in SCOPE. DECL is what
3454 we found when we tried to do the lookup. LOCATION is the location of
3455 the NAME identifier. */
3458 qualified_name_lookup_error (tree scope, tree name,
3459 tree decl, location_t location)
3461 if (scope == error_mark_node)
3462 ; /* We already complained. */
3463 else if (TYPE_P (scope))
3465 if (!COMPLETE_TYPE_P (scope))
3466 error_at (location, "incomplete type %qT used in nested name specifier",
3468 else if (TREE_CODE (decl) == TREE_LIST)
3470 error_at (location, "reference to %<%T::%D%> is ambiguous",
3472 print_candidates (decl);
3475 error_at (location, "%qD is not a member of %qT", name, scope);
3477 else if (scope != global_namespace)
3479 error_at (location, "%qD is not a member of %qD", name, scope);
3480 suggest_alternatives_for (location, name);
3484 error_at (location, "%<::%D%> has not been declared", name);
3485 suggest_alternatives_for (location, name);