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 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
23 #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"
37 #define pp_separate_with_comma(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_type (tree, int);
63 static void dump_typename (tree, int);
64 static void dump_simple_decl (tree, tree, int);
65 static void dump_decl (tree, int);
66 static void dump_template_decl (tree, int);
67 static void dump_function_decl (tree, int);
68 static void dump_expr (tree, int);
69 static void dump_unary_op (const char *, tree, int);
70 static void dump_binary_op (const char *, tree, int);
71 static void dump_aggr_type (tree, int);
72 static void dump_type_prefix (tree, int);
73 static void dump_type_suffix (tree, int);
74 static void dump_function_name (tree, int);
75 static void dump_call_expr_args (tree, int, bool);
76 static void dump_aggr_init_expr_args (tree, int, bool);
77 static void dump_expr_list (tree, int);
78 static void dump_global_iord (tree);
79 static void dump_parameters (tree, int);
80 static void dump_exception_spec (tree, int);
81 static void dump_template_argument (tree, int);
82 static void dump_template_argument_list (tree, int);
83 static void dump_template_parameter (tree, int);
84 static void dump_template_bindings (tree, tree, VEC(tree,gc) *);
85 static void dump_scope (tree, int);
86 static void dump_template_parms (tree, int, int);
87 static int get_non_default_template_args_count (tree, int);
88 static const char *function_category (tree);
89 static void maybe_print_constexpr_context (diagnostic_context *);
90 static void maybe_print_instantiation_context (diagnostic_context *);
91 static void print_instantiation_full_context (diagnostic_context *);
92 static void print_instantiation_partial_context (diagnostic_context *,
95 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
96 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
97 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
99 static bool cp_printer (pretty_printer *, text_info *, const char *,
100 int, bool, bool, bool);
101 static location_t location_of (tree);
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)
311 pp_separate_with_comma (cxx_pp);
312 dump_type (t, TFF_PLAIN_IDENTIFIER);
313 pp_cxx_whitespace (cxx_pp);
315 pp_cxx_whitespace (cxx_pp);
316 t = tsubst (t, args, tf_none, NULL_TREE);
317 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
318 pp_simple_type_specifier doesn't know about it. */
319 t = strip_typedefs (t);
320 dump_type (t, TFF_PLAIN_IDENTIFIER);
324 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
328 dump_type (tree t, int flags)
333 /* Don't print e.g. "struct mytypedef". */
334 if (TYPE_P (t) && typedef_variant_p (t))
336 tree decl = TYPE_NAME (t);
337 if ((flags & TFF_CHASE_TYPEDEF)
338 || DECL_SELF_REFERENCE_P (decl)
339 || (!flag_pretty_templates
340 && DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl)))
341 t = strip_typedefs (t);
342 else if (same_type_p (t, TREE_TYPE (decl)))
346 pp_cxx_cv_qualifier_seq (cxx_pp, t);
347 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
352 if (TYPE_PTRMEMFUNC_P (t))
355 switch (TREE_CODE (t))
358 if (t == init_list_type_node)
359 pp_string (cxx_pp, M_("<brace-enclosed initializer list>"));
360 else if (t == unknown_type_node)
361 pp_string (cxx_pp, M_("<unresolved overloaded function type>"));
364 pp_cxx_cv_qualifier_seq (cxx_pp, t);
365 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
370 /* A list of function parms. */
371 dump_parameters (t, flags);
374 case IDENTIFIER_NODE:
375 pp_cxx_tree_identifier (cxx_pp, t);
379 dump_type (BINFO_TYPE (t), flags);
385 dump_aggr_type (t, flags);
389 if (flags & TFF_CHASE_TYPEDEF)
391 dump_type (DECL_ORIGINAL_TYPE (t)
392 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
395 /* Else fall through. */
399 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
408 case FIXED_POINT_TYPE:
409 pp_type_specifier_seq (cxx_pp, t);
412 case TEMPLATE_TEMPLATE_PARM:
413 /* For parameters inside template signature. */
414 if (TYPE_IDENTIFIER (t))
415 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
417 pp_cxx_canonical_template_parameter (cxx_pp, t);
420 case BOUND_TEMPLATE_TEMPLATE_PARM:
422 tree args = TYPE_TI_ARGS (t);
423 pp_cxx_cv_qualifier_seq (cxx_pp, t);
424 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
425 pp_cxx_begin_template_argument_list (cxx_pp);
426 dump_template_argument_list (args, flags);
427 pp_cxx_end_template_argument_list (cxx_pp);
431 case TEMPLATE_TYPE_PARM:
432 pp_cxx_cv_qualifier_seq (cxx_pp, t);
433 if (TYPE_IDENTIFIER (t))
434 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
436 pp_cxx_canonical_template_parameter
437 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
440 /* This is not always necessary for pointers and such, but doing this
441 reduces code size. */
450 dump_type_prefix (t, flags);
451 dump_type_suffix (t, flags);
455 if (! (flags & TFF_CHASE_TYPEDEF)
456 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
458 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
461 pp_cxx_cv_qualifier_seq (cxx_pp, t);
462 pp_cxx_ws_string (cxx_pp,
463 TYPENAME_IS_ENUM_P (t) ? "enum"
464 : TYPENAME_IS_CLASS_P (t) ? "class"
466 dump_typename (t, flags);
469 case UNBOUND_CLASS_TEMPLATE:
470 if (! (flags & TFF_UNQUALIFIED_NAME))
472 dump_type (TYPE_CONTEXT (t), flags);
473 pp_cxx_colon_colon (cxx_pp);
475 pp_cxx_ws_string (cxx_pp, "template");
476 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
480 pp_cxx_ws_string (cxx_pp, "__typeof__");
481 pp_cxx_whitespace (cxx_pp);
482 pp_cxx_left_paren (cxx_pp);
483 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
484 pp_cxx_right_paren (cxx_pp);
487 case TYPE_PACK_EXPANSION:
488 dump_type (PACK_EXPANSION_PATTERN (t), flags);
489 pp_cxx_ws_string (cxx_pp, "...");
492 case TYPE_ARGUMENT_PACK:
493 dump_template_argument (t, flags);
497 pp_cxx_ws_string (cxx_pp, "decltype");
498 pp_cxx_whitespace (cxx_pp);
499 pp_cxx_left_paren (cxx_pp);
500 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
501 pp_cxx_right_paren (cxx_pp);
505 pp_string (cxx_pp, "std::nullptr_t");
509 pp_unsupported_tree (cxx_pp, t);
510 /* Fall through to error. */
513 pp_string (cxx_pp, M_("<type error>"));
518 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
522 dump_typename (tree t, int flags)
524 tree ctx = TYPE_CONTEXT (t);
526 if (TREE_CODE (ctx) == TYPENAME_TYPE)
527 dump_typename (ctx, flags);
529 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
530 pp_cxx_colon_colon (cxx_pp);
531 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
534 /* Return the name of the supplied aggregate, or enumeral type. */
537 class_key_or_enum_as_string (tree t)
539 if (TREE_CODE (t) == ENUMERAL_TYPE)
541 if (SCOPED_ENUM_P (t))
546 else if (TREE_CODE (t) == UNION_TYPE)
548 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
554 /* Print out a class declaration T under the control of FLAGS,
555 in the form `class foo'. */
558 dump_aggr_type (tree t, int flags)
561 const char *variety = class_key_or_enum_as_string (t);
565 pp_cxx_cv_qualifier_seq (cxx_pp, t);
567 if (flags & TFF_CLASS_KEY_OR_ENUM)
568 pp_cxx_ws_string (cxx_pp, variety);
570 name = TYPE_NAME (t);
574 typdef = !DECL_ARTIFICIAL (name);
577 && ((flags & TFF_CHASE_TYPEDEF)
578 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
579 && DECL_TEMPLATE_INFO (name))))
580 || DECL_SELF_REFERENCE_P (name))
582 t = TYPE_MAIN_VARIANT (t);
583 name = TYPE_NAME (t);
587 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
588 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
589 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
590 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
592 if (! (flags & TFF_UNQUALIFIED_NAME))
593 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
594 flags &= ~TFF_UNQUALIFIED_NAME;
597 /* Because the template names are mangled, we have to locate
598 the most general template, and use that name. */
599 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
601 while (DECL_TEMPLATE_INFO (tpl))
602 tpl = DECL_TI_TEMPLATE (tpl);
605 name = DECL_NAME (name);
608 if (name == 0 || ANON_AGGRNAME_P (name))
610 if (flags & TFF_CLASS_KEY_OR_ENUM)
611 pp_string (cxx_pp, M_("<anonymous>"));
613 pp_printf (pp_base (cxx_pp), M_("<anonymous %s>"), variety);
615 else if (LAMBDANAME_P (name))
617 /* A lambda's "type" is essentially its signature. */
618 pp_string (cxx_pp, M_("<lambda"));
619 if (lambda_function (t))
620 dump_parameters (FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t)),
622 pp_character(cxx_pp, '>');
625 pp_cxx_tree_identifier (cxx_pp, name);
627 dump_template_parms (TYPE_TEMPLATE_INFO (t),
628 !CLASSTYPE_USE_TEMPLATE (t),
629 flags & ~TFF_TEMPLATE_HEADER);
632 /* Dump into the obstack the initial part of the output for a given type.
633 This is necessary when dealing with things like functions returning
636 return type of `int (* fee ())()': pointer -> function -> int. Both
637 pointer (and reference and offset) and function (and member) types must
638 deal with prefix and suffix.
640 Arrays must also do this for DECL nodes, like int a[], and for things like
644 dump_type_prefix (tree t, int flags)
646 if (TYPE_PTRMEMFUNC_P (t))
648 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
652 switch (TREE_CODE (t))
657 tree sub = TREE_TYPE (t);
659 dump_type_prefix (sub, flags);
660 if (TREE_CODE (sub) == ARRAY_TYPE
661 || TREE_CODE (sub) == FUNCTION_TYPE)
663 pp_cxx_whitespace (cxx_pp);
664 pp_cxx_left_paren (cxx_pp);
666 if (TREE_CODE (t) == POINTER_TYPE)
667 pp_character(cxx_pp, '*');
668 else if (TREE_CODE (t) == REFERENCE_TYPE)
670 if (TYPE_REF_IS_RVALUE (t))
671 pp_string (cxx_pp, "&&");
673 pp_character (cxx_pp, '&');
675 pp_base (cxx_pp)->padding = pp_before;
676 pp_cxx_cv_qualifier_seq (cxx_pp, t);
682 dump_type_prefix (TREE_TYPE (t), flags);
683 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
685 pp_maybe_space (cxx_pp);
686 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
687 pp_cxx_left_paren (cxx_pp);
688 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
689 pp_cxx_colon_colon (cxx_pp);
691 pp_cxx_star (cxx_pp);
692 pp_cxx_cv_qualifier_seq (cxx_pp, t);
693 pp_base (cxx_pp)->padding = pp_before;
696 /* This can be reached without a pointer when dealing with
697 templates, e.g. std::is_function. */
699 dump_type_prefix (TREE_TYPE (t), flags);
703 dump_type_prefix (TREE_TYPE (t), flags);
704 pp_maybe_space (cxx_pp);
705 pp_cxx_left_paren (cxx_pp);
706 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
707 pp_cxx_colon_colon (cxx_pp);
711 dump_type_prefix (TREE_TYPE (t), flags);
715 case IDENTIFIER_NODE:
720 case TEMPLATE_TYPE_PARM:
721 case TEMPLATE_TEMPLATE_PARM:
722 case BOUND_TEMPLATE_TEMPLATE_PARM:
734 case TYPE_PACK_EXPANSION:
735 case FIXED_POINT_TYPE:
737 dump_type (t, flags);
738 pp_base (cxx_pp)->padding = pp_before;
742 pp_unsupported_tree (cxx_pp, t);
745 pp_string (cxx_pp, M_("<typeprefixerror>"));
750 /* Dump the suffix of type T, under control of FLAGS. This is the part
751 which appears after the identifier (or function parms). */
754 dump_type_suffix (tree t, int flags)
756 if (TYPE_PTRMEMFUNC_P (t))
757 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
759 switch (TREE_CODE (t))
764 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
765 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
766 pp_cxx_right_paren (cxx_pp);
767 dump_type_suffix (TREE_TYPE (t), flags);
774 if (TREE_CODE (t) == METHOD_TYPE)
775 /* Can only be reached through a pointer. */
776 pp_cxx_right_paren (cxx_pp);
777 arg = TYPE_ARG_TYPES (t);
778 if (TREE_CODE (t) == METHOD_TYPE)
779 arg = TREE_CHAIN (arg);
781 /* Function pointers don't have default args. Not in standard C++,
782 anyway; they may in g++, but we'll just pretend otherwise. */
783 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
785 if (TREE_CODE (t) == METHOD_TYPE)
786 pp_cxx_cv_qualifier_seq
787 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
789 pp_cxx_cv_qualifier_seq (cxx_pp, t);
790 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
791 dump_type_suffix (TREE_TYPE (t), flags);
796 pp_maybe_space (cxx_pp);
797 pp_cxx_left_bracket (cxx_pp);
800 tree dtype = TYPE_DOMAIN (t);
801 tree max = TYPE_MAX_VALUE (dtype);
802 if (host_integerp (max, 0))
803 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
804 else if (TREE_CODE (max) == MINUS_EXPR)
805 dump_expr (TREE_OPERAND (max, 0),
806 flags & ~TFF_EXPR_IN_PARENS);
808 dump_expr (fold_build2_loc (input_location,
809 PLUS_EXPR, dtype, max,
810 build_int_cst (dtype, 1)),
811 flags & ~TFF_EXPR_IN_PARENS);
813 pp_cxx_right_bracket (cxx_pp);
814 dump_type_suffix (TREE_TYPE (t), flags);
818 case IDENTIFIER_NODE:
823 case TEMPLATE_TYPE_PARM:
824 case TEMPLATE_TEMPLATE_PARM:
825 case BOUND_TEMPLATE_TEMPLATE_PARM:
837 case TYPE_PACK_EXPANSION:
838 case FIXED_POINT_TYPE:
843 pp_unsupported_tree (cxx_pp, t);
845 /* Don't mark it here, we should have already done in
852 dump_global_iord (tree t)
854 const char *p = NULL;
856 if (DECL_GLOBAL_CTOR_P (t))
857 p = M_("(static initializers for %s)");
858 else if (DECL_GLOBAL_DTOR_P (t))
859 p = M_("(static destructors for %s)");
863 pp_printf (pp_base (cxx_pp), p, input_filename);
867 dump_simple_decl (tree t, tree type, int flags)
869 if (flags & TFF_DECL_SPECIFIERS)
871 if (TREE_CODE (t) == VAR_DECL
872 && DECL_DECLARED_CONSTEXPR_P (t))
873 pp_cxx_ws_string (cxx_pp, "constexpr");
874 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
875 pp_maybe_space (cxx_pp);
877 if (! (flags & TFF_UNQUALIFIED_NAME)
878 && TREE_CODE (t) != PARM_DECL
879 && (!DECL_INITIAL (t)
880 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
881 dump_scope (CP_DECL_CONTEXT (t), flags);
882 flags &= ~TFF_UNQUALIFIED_NAME;
883 if ((flags & TFF_DECL_SPECIFIERS)
884 && DECL_TEMPLATE_PARM_P (t)
885 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
886 pp_string (cxx_pp, "...");
888 dump_decl (DECL_NAME (t), flags);
890 pp_string (cxx_pp, M_("<anonymous>"));
891 if (flags & TFF_DECL_SPECIFIERS)
892 dump_type_suffix (type, flags);
895 /* Dump a human readable string for the decl T under control of FLAGS. */
898 dump_decl (tree t, int flags)
903 /* If doing Objective-C++, give Objective-C a chance to demangle
904 Objective-C method names. */
905 if (c_dialect_objc ())
907 const char *demangled = objc_maybe_printable_name (t, flags);
910 pp_string (cxx_pp, demangled);
915 switch (TREE_CODE (t))
918 /* Don't say 'typedef class A' */
919 if (DECL_ARTIFICIAL (t) && !DECL_SELF_REFERENCE_P (t))
921 if ((flags & TFF_DECL_SPECIFIERS)
922 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
924 /* Say `class T' not just `T'. */
925 pp_cxx_ws_string (cxx_pp, "class");
927 /* Emit the `...' for a parameter pack. */
928 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
929 pp_cxx_ws_string (cxx_pp, "...");
932 dump_type (TREE_TYPE (t), flags);
935 if ((flags & TFF_DECL_SPECIFIERS)
936 && !DECL_SELF_REFERENCE_P (t))
937 pp_cxx_ws_string (cxx_pp, "typedef");
938 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
939 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
944 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
946 pp_string (cxx_pp, M_("vtable for "));
947 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
948 dump_type (DECL_CONTEXT (t), flags);
951 /* Else fall through. */
954 dump_simple_decl (t, TREE_TYPE (t), flags);
958 pp_string (cxx_pp, M_("<return value> "));
959 dump_simple_decl (t, TREE_TYPE (t), flags);
963 if (flags & TFF_DECL_SPECIFIERS)
964 pp_cxx_declaration (cxx_pp, t);
967 if (! (flags & TFF_UNQUALIFIED_NAME))
968 dump_scope (CP_DECL_CONTEXT (t), flags);
969 flags &= ~TFF_UNQUALIFIED_NAME;
970 if (DECL_NAME (t) == NULL_TREE)
971 pp_cxx_ws_string (cxx_pp, M_("{anonymous}"));
973 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
978 dump_type (TREE_OPERAND (t, 0), flags);
979 pp_string (cxx_pp, "::");
980 dump_decl (TREE_OPERAND (t, 1), flags|TFF_UNQUALIFIED_NAME);
984 dump_decl (TREE_OPERAND (t, 0), flags);
985 pp_cxx_left_bracket (cxx_pp);
986 dump_decl (TREE_OPERAND (t, 1), flags);
987 pp_cxx_right_bracket (cxx_pp);
990 /* So that we can do dump_decl on an aggr type. */
994 dump_type (t, flags);
998 /* This is a pseudo destructor call which has not been folded into
999 a PSEUDO_DTOR_EXPR yet. */
1000 pp_cxx_complement (cxx_pp);
1001 dump_type (TREE_OPERAND (t, 0), flags);
1008 /* These special cases are duplicated here so that other functions
1009 can feed identifiers to error and get them demangled properly. */
1010 case IDENTIFIER_NODE:
1011 if (IDENTIFIER_TYPENAME_P (t))
1013 pp_cxx_ws_string (cxx_pp, "operator");
1014 /* Not exactly IDENTIFIER_TYPE_VALUE. */
1015 dump_type (TREE_TYPE (t), flags);
1019 pp_cxx_tree_identifier (cxx_pp, t);
1025 t = OVL_CURRENT (t);
1026 if (DECL_CLASS_SCOPE_P (t))
1028 dump_type (DECL_CONTEXT (t), flags);
1029 pp_cxx_colon_colon (cxx_pp);
1031 else if (DECL_CONTEXT (t))
1033 dump_decl (DECL_CONTEXT (t), flags);
1034 pp_cxx_colon_colon (cxx_pp);
1036 dump_decl (DECL_NAME (t), flags);
1040 /* If there's only one function, just treat it like an ordinary
1042 t = OVL_CURRENT (t);
1046 if (! DECL_LANG_SPECIFIC (t))
1047 pp_string (cxx_pp, M_("<built-in>"));
1048 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
1049 dump_global_iord (t);
1051 dump_function_decl (t, flags);
1055 dump_template_decl (t, flags);
1058 case TEMPLATE_ID_EXPR:
1060 tree name = TREE_OPERAND (t, 0);
1062 if (is_overloaded_fn (name))
1063 name = DECL_NAME (get_first_fn (name));
1064 dump_decl (name, flags);
1065 pp_cxx_begin_template_argument_list (cxx_pp);
1066 if (TREE_OPERAND (t, 1))
1067 dump_template_argument_list (TREE_OPERAND (t, 1), flags);
1068 pp_cxx_end_template_argument_list (cxx_pp);
1073 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1077 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1078 || (DECL_INITIAL (t) &&
1079 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1080 dump_simple_decl (t, TREE_TYPE (t), flags);
1081 else if (DECL_NAME (t))
1082 dump_decl (DECL_NAME (t), flags);
1083 else if (DECL_INITIAL (t))
1084 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1086 pp_string (cxx_pp, M_("<enumerator>"));
1090 pp_cxx_ws_string (cxx_pp, "using");
1091 dump_type (USING_DECL_SCOPE (t), flags);
1092 pp_cxx_colon_colon (cxx_pp);
1093 dump_decl (DECL_NAME (t), flags);
1097 pp_cxx_declaration (cxx_pp, t);
1101 dump_decl (BASELINK_FUNCTIONS (t), flags);
1104 case NON_DEPENDENT_EXPR:
1105 dump_expr (t, flags);
1108 case TEMPLATE_TYPE_PARM:
1109 if (flags & TFF_DECL_SPECIFIERS)
1110 pp_cxx_declaration (cxx_pp, t);
1112 pp_type_id (cxx_pp, t);
1115 case UNBOUND_CLASS_TEMPLATE:
1116 case TYPE_PACK_EXPANSION:
1118 dump_type (t, flags);
1122 pp_unsupported_tree (cxx_pp, t);
1123 /* Fall through to error. */
1126 pp_string (cxx_pp, M_("<declaration error>"));
1131 /* Dump a template declaration T under control of FLAGS. This means the
1132 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1135 dump_template_decl (tree t, int flags)
1137 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1141 if (flags & TFF_TEMPLATE_HEADER)
1143 for (parms = orig_parms = nreverse (orig_parms);
1145 parms = TREE_CHAIN (parms))
1147 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1148 int len = TREE_VEC_LENGTH (inner_parms);
1150 pp_cxx_ws_string (cxx_pp, "template");
1151 pp_cxx_begin_template_argument_list (cxx_pp);
1153 /* If we've shown the template prefix, we'd better show the
1154 parameters' and decl's type too. */
1155 flags |= TFF_DECL_SPECIFIERS;
1157 for (i = 0; i < len; i++)
1160 pp_separate_with_comma (cxx_pp);
1161 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1163 pp_cxx_end_template_argument_list (cxx_pp);
1164 pp_cxx_whitespace (cxx_pp);
1166 nreverse(orig_parms);
1168 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1170 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1171 pp_cxx_ws_string (cxx_pp, "class");
1173 /* If this is a parameter pack, print the ellipsis. */
1174 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1175 pp_cxx_ws_string (cxx_pp, "...");
1179 if (DECL_TEMPLATE_RESULT (t)
1180 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1181 dump_type (TREE_TYPE (t),
1182 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1183 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1184 else if (DECL_TEMPLATE_RESULT (t)
1185 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1186 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1189 gcc_assert (TREE_TYPE (t));
1190 switch (NEXT_CODE (t))
1194 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1197 /* This case can occur with some invalid code. */
1198 dump_type (TREE_TYPE (t),
1199 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1200 | (flags & TFF_DECL_SPECIFIERS
1201 ? TFF_CLASS_KEY_OR_ENUM : 0));
1206 /* find_typenames looks through the type of the function template T
1207 and returns a VEC containing any typedefs, decltypes or TYPENAME_TYPEs
1210 struct find_typenames_t
1212 struct pointer_set_t *p_set;
1213 VEC (tree,gc) *typenames;
1217 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1219 struct find_typenames_t *d = (struct find_typenames_t *)data;
1220 tree mv = NULL_TREE;
1222 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1223 /* Add the type of the typedef without any additional cv-quals. */
1224 mv = TREE_TYPE (TYPE_NAME (*tp));
1225 else if (TREE_CODE (*tp) == TYPENAME_TYPE
1226 || TREE_CODE (*tp) == DECLTYPE_TYPE)
1227 /* Add the typename without any cv-qualifiers. */
1228 mv = TYPE_MAIN_VARIANT (*tp);
1230 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1231 VEC_safe_push (tree, gc, d->typenames, mv);
1233 /* Search into class template arguments, which cp_walk_subtrees
1235 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1236 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1242 static VEC(tree,gc) *
1243 find_typenames (tree t)
1245 struct find_typenames_t ft;
1246 ft.p_set = pointer_set_create ();
1247 ft.typenames = NULL;
1248 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1249 find_typenames_r, &ft, ft.p_set);
1250 pointer_set_destroy (ft.p_set);
1251 return ft.typenames;
1254 /* Pretty print a function decl. There are several ways we want to print a
1255 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1256 As error can only apply the '#' flag once to give 0 and 1 for V, there
1257 is %D which doesn't print the throw specs, and %F which does. */
1260 dump_function_decl (tree t, int flags)
1264 tree cname = NULL_TREE;
1265 tree template_args = NULL_TREE;
1266 tree template_parms = NULL_TREE;
1267 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1268 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1270 VEC(tree,gc) *typenames = NULL;
1272 if (DECL_NAME (t) && LAMBDA_FUNCTION_P (t))
1274 /* A lambda's signature is essentially its "type", so defer. */
1275 gcc_assert (LAMBDA_TYPE_P (DECL_CONTEXT (t)));
1276 dump_type (DECL_CONTEXT (t), flags);
1280 flags &= ~TFF_UNQUALIFIED_NAME;
1281 if (TREE_CODE (t) == TEMPLATE_DECL)
1282 t = DECL_TEMPLATE_RESULT (t);
1284 /* Save the exceptions, in case t is a specialization and we are
1285 emitting an error about incompatible specifications. */
1286 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1288 /* Pretty print template instantiations only. */
1289 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1290 && flag_pretty_templates)
1294 template_args = DECL_TI_ARGS (t);
1295 tmpl = most_general_template (t);
1296 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1298 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1300 typenames = find_typenames (t);
1304 fntype = TREE_TYPE (t);
1305 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1307 if (DECL_CLASS_SCOPE_P (t))
1308 cname = DECL_CONTEXT (t);
1309 /* This is for partially instantiated template methods. */
1310 else if (TREE_CODE (fntype) == METHOD_TYPE)
1311 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1313 if (flags & TFF_DECL_SPECIFIERS)
1315 if (DECL_STATIC_FUNCTION_P (t))
1316 pp_cxx_ws_string (cxx_pp, "static");
1317 else if (DECL_VIRTUAL_P (t))
1318 pp_cxx_ws_string (cxx_pp, "virtual");
1320 if (DECL_DECLARED_CONSTEXPR_P (STRIP_TEMPLATE (t)))
1321 pp_cxx_ws_string (cxx_pp, "constexpr");
1324 /* Print the return type? */
1326 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1327 && !DECL_DESTRUCTOR_P (t);
1329 dump_type_prefix (TREE_TYPE (fntype), flags);
1331 /* Print the function name. */
1332 if (!do_outer_scope)
1336 dump_type (cname, flags);
1337 pp_cxx_colon_colon (cxx_pp);
1340 dump_scope (CP_DECL_CONTEXT (t), flags);
1342 dump_function_name (t, flags);
1344 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1346 dump_parameters (parmtypes, flags);
1348 if (TREE_CODE (fntype) == METHOD_TYPE)
1350 pp_base (cxx_pp)->padding = pp_before;
1351 pp_cxx_cv_qualifier_seq
1352 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1355 if (flags & TFF_EXCEPTION_SPECIFICATION)
1357 pp_base (cxx_pp)->padding = pp_before;
1358 dump_exception_spec (exceptions, flags);
1362 dump_type_suffix (TREE_TYPE (fntype), flags);
1365 /* If T is a template instantiation, dump the parameter binding. */
1366 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1368 pp_cxx_whitespace (cxx_pp);
1369 pp_cxx_left_bracket (cxx_pp);
1370 pp_cxx_ws_string (cxx_pp, M_("with"));
1371 pp_cxx_whitespace (cxx_pp);
1372 dump_template_bindings (template_parms, template_args, typenames);
1373 pp_cxx_right_bracket (cxx_pp);
1377 /* Print a parameter list. If this is for a member function, the
1378 member object ptr (and any other hidden args) should have
1379 already been removed. */
1382 dump_parameters (tree parmtypes, int flags)
1385 flags &= ~TFF_SCOPE;
1386 pp_cxx_left_paren (cxx_pp);
1388 for (first = 1; parmtypes != void_list_node;
1389 parmtypes = TREE_CHAIN (parmtypes))
1392 pp_separate_with_comma (cxx_pp);
1396 pp_cxx_ws_string (cxx_pp, "...");
1400 dump_type (TREE_VALUE (parmtypes), flags);
1402 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1404 pp_cxx_whitespace (cxx_pp);
1406 pp_cxx_whitespace (cxx_pp);
1407 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1411 pp_cxx_right_paren (cxx_pp);
1414 /* Print an exception specification. T is the exception specification. */
1417 dump_exception_spec (tree t, int flags)
1419 if (t && TREE_PURPOSE (t))
1421 pp_cxx_ws_string (cxx_pp, "noexcept");
1422 pp_cxx_whitespace (cxx_pp);
1423 pp_cxx_left_paren (cxx_pp);
1424 dump_expr (TREE_PURPOSE (t), flags);
1425 pp_cxx_right_paren (cxx_pp);
1429 pp_cxx_ws_string (cxx_pp, "throw");
1430 pp_cxx_whitespace (cxx_pp);
1431 pp_cxx_left_paren (cxx_pp);
1432 if (TREE_VALUE (t) != NULL_TREE)
1435 dump_type (TREE_VALUE (t), flags);
1439 pp_separate_with_comma (cxx_pp);
1441 pp_cxx_right_paren (cxx_pp);
1445 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1446 and destructors properly. */
1449 dump_function_name (tree t, int flags)
1451 tree name = DECL_NAME (t);
1453 /* We can get here with a decl that was synthesized by language-
1454 independent machinery (e.g. coverage.c) in which case it won't
1455 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1456 will crash. In this case it is safe just to print out the
1458 if (!DECL_LANG_SPECIFIC (t))
1460 pp_cxx_tree_identifier (cxx_pp, name);
1464 if (TREE_CODE (t) == TEMPLATE_DECL)
1465 t = DECL_TEMPLATE_RESULT (t);
1467 /* Don't let the user see __comp_ctor et al. */
1468 if (DECL_CONSTRUCTOR_P (t)
1469 || DECL_DESTRUCTOR_P (t))
1471 if (LAMBDA_TYPE_P (DECL_CONTEXT (t)))
1472 name = get_identifier ("<lambda>");
1474 name = constructor_name (DECL_CONTEXT (t));
1477 if (DECL_DESTRUCTOR_P (t))
1479 pp_cxx_complement (cxx_pp);
1480 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1482 else if (DECL_CONV_FN_P (t))
1484 /* This cannot use the hack that the operator's return
1485 type is stashed off of its name because it may be
1486 used for error reporting. In the case of conflicting
1487 declarations, both will have the same name, yet
1488 the types will be different, hence the TREE_TYPE field
1489 of the first name will be clobbered by the second. */
1490 pp_cxx_ws_string (cxx_pp, "operator");
1491 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1493 else if (name && IDENTIFIER_OPNAME_P (name))
1494 pp_cxx_tree_identifier (cxx_pp, name);
1496 dump_decl (name, flags);
1498 if (DECL_TEMPLATE_INFO (t)
1499 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1500 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1501 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1502 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1505 /* Dump the template parameters from the template info INFO under control of
1506 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1507 specialization (partial or complete). For partial specializations we show
1508 the specialized parameter values. For a primary template we show no
1512 dump_template_parms (tree info, int primary, int flags)
1514 tree args = info ? TI_ARGS (info) : NULL_TREE;
1516 if (primary && flags & TFF_TEMPLATE_NAME)
1518 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1519 pp_cxx_begin_template_argument_list (cxx_pp);
1521 /* Be careful only to print things when we have them, so as not
1522 to crash producing error messages. */
1523 if (args && !primary)
1526 len = get_non_default_template_args_count (args, flags);
1528 args = INNERMOST_TEMPLATE_ARGS (args);
1529 for (ix = 0; ix != len; ix++)
1531 tree arg = TREE_VEC_ELT (args, ix);
1533 /* Only print a comma if we know there is an argument coming. In
1534 the case of an empty template argument pack, no actual
1535 argument will be printed. */
1537 && (!ARGUMENT_PACK_P (arg)
1538 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1539 pp_separate_with_comma (cxx_pp);
1542 pp_string (cxx_pp, M_("<template parameter error>"));
1544 dump_template_argument (arg, flags);
1549 tree tpl = TI_TEMPLATE (info);
1550 tree parms = DECL_TEMPLATE_PARMS (tpl);
1553 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1554 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1556 for (ix = 0; ix != len; ix++)
1560 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1562 pp_string (cxx_pp, M_("<template parameter error>"));
1566 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1569 pp_separate_with_comma (cxx_pp);
1571 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1574 pp_cxx_end_template_argument_list (cxx_pp);
1577 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1578 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1581 dump_call_expr_args (tree t, int flags, bool skipfirst)
1584 call_expr_arg_iterator iter;
1586 pp_cxx_left_paren (cxx_pp);
1587 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1593 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1594 if (more_call_expr_args_p (&iter))
1595 pp_separate_with_comma (cxx_pp);
1598 pp_cxx_right_paren (cxx_pp);
1601 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1602 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1606 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1609 aggr_init_expr_arg_iterator iter;
1611 pp_cxx_left_paren (cxx_pp);
1612 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1618 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1619 if (more_aggr_init_expr_args_p (&iter))
1620 pp_separate_with_comma (cxx_pp);
1623 pp_cxx_right_paren (cxx_pp);
1626 /* Print out a list of initializers (subr of dump_expr). */
1629 dump_expr_list (tree l, int flags)
1633 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1636 pp_separate_with_comma (cxx_pp);
1640 /* Print out a vector of initializers (subr of dump_expr). */
1643 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1645 unsigned HOST_WIDE_INT idx;
1648 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1650 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1651 if (idx != VEC_length (constructor_elt, v) - 1)
1652 pp_separate_with_comma (cxx_pp);
1657 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1658 function. Resolve it to a close relative -- in the sense of static
1659 type -- variant being overridden. That is close to what was written in
1660 the source code. Subroutine of dump_expr. */
1663 resolve_virtual_fun_from_obj_type_ref (tree ref)
1665 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1666 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1667 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1670 fun = TREE_CHAIN (fun);
1671 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1672 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1678 /* Print out an expression E under control of FLAGS. */
1681 dump_expr (tree t, int flags)
1686 if (STATEMENT_CLASS_P (t))
1688 pp_cxx_ws_string (cxx_pp, M_("<statement>"));
1692 switch (TREE_CODE (t))
1700 case NAMESPACE_DECL:
1704 case IDENTIFIER_NODE:
1705 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1712 pp_constant (cxx_pp, t);
1716 /* While waiting for caret diagnostics, avoid printing
1717 __cxa_allocate_exception, __cxa_throw, and the like. */
1718 pp_cxx_ws_string (cxx_pp, M_("<throw-expression>"));
1722 pp_ampersand (cxx_pp);
1723 dump_type (PTRMEM_CST_CLASS (t), flags);
1724 pp_cxx_colon_colon (cxx_pp);
1725 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1729 pp_cxx_left_paren (cxx_pp);
1730 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1731 pp_separate_with_comma (cxx_pp);
1732 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1733 pp_cxx_right_paren (cxx_pp);
1737 pp_cxx_left_paren (cxx_pp);
1738 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1739 pp_string (cxx_pp, " ? ");
1740 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1741 pp_string (cxx_pp, " : ");
1742 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1743 pp_cxx_right_paren (cxx_pp);
1747 if (TREE_HAS_CONSTRUCTOR (t))
1749 pp_cxx_ws_string (cxx_pp, "new");
1750 pp_cxx_whitespace (cxx_pp);
1751 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1754 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1757 case AGGR_INIT_EXPR:
1759 tree fn = NULL_TREE;
1761 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1762 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1764 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1766 if (DECL_CONSTRUCTOR_P (fn))
1767 dump_type (DECL_CONTEXT (fn), flags);
1772 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1774 dump_aggr_init_expr_args (t, flags, true);
1779 tree fn = CALL_EXPR_FN (t);
1780 bool skipfirst = false;
1782 if (TREE_CODE (fn) == ADDR_EXPR)
1783 fn = TREE_OPERAND (fn, 0);
1785 /* Nobody is interested in seeing the guts of vcalls. */
1786 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1787 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1789 if (TREE_TYPE (fn) != NULL_TREE
1790 && NEXT_CODE (fn) == METHOD_TYPE
1791 && call_expr_nargs (t))
1793 tree ob = CALL_EXPR_ARG (t, 0);
1794 if (TREE_CODE (ob) == ADDR_EXPR)
1796 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1797 pp_cxx_dot (cxx_pp);
1799 else if (TREE_CODE (ob) != PARM_DECL
1800 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1802 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1803 pp_cxx_arrow (cxx_pp);
1807 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1808 dump_call_expr_args (t, flags, skipfirst);
1813 /* Note that this only works for G++ target exprs. If somebody
1814 builds a general TARGET_EXPR, there's no way to represent that
1815 it initializes anything other that the parameter slot for the
1816 default argument. Note we may have cleared out the first
1817 operand in expand_expr, so don't go killing ourselves. */
1818 if (TREE_OPERAND (t, 1))
1819 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1822 case POINTER_PLUS_EXPR:
1823 dump_binary_op ("+", t, flags);
1831 case TRUNC_DIV_EXPR:
1832 case TRUNC_MOD_EXPR:
1840 case TRUTH_ANDIF_EXPR:
1841 case TRUTH_ORIF_EXPR:
1848 case EXACT_DIV_EXPR:
1849 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1853 case FLOOR_DIV_EXPR:
1854 case ROUND_DIV_EXPR:
1856 dump_binary_op ("/", t, flags);
1860 case FLOOR_MOD_EXPR:
1861 case ROUND_MOD_EXPR:
1862 dump_binary_op ("%", t, flags);
1867 tree ob = TREE_OPERAND (t, 0);
1868 if (TREE_CODE (ob) == INDIRECT_REF)
1870 ob = TREE_OPERAND (ob, 0);
1871 if (TREE_CODE (ob) != PARM_DECL
1873 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1875 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1876 pp_cxx_arrow (cxx_pp);
1881 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1882 pp_cxx_dot (cxx_pp);
1884 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1889 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1890 pp_cxx_left_bracket (cxx_pp);
1891 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1892 pp_cxx_right_bracket (cxx_pp);
1895 case UNARY_PLUS_EXPR:
1896 dump_unary_op ("+", t, flags);
1900 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1901 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1902 /* An ADDR_EXPR can have reference type. In that case, we
1903 shouldn't print the `&' doing so indicates to the user
1904 that the expression has pointer type. */
1906 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1907 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1908 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1909 dump_unary_op ("&&", t, flags);
1911 dump_unary_op ("&", t, flags);
1915 if (TREE_HAS_CONSTRUCTOR (t))
1917 t = TREE_OPERAND (t, 0);
1918 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1919 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1920 dump_call_expr_args (t, flags, true);
1924 if (TREE_OPERAND (t,0) != NULL_TREE
1925 && TREE_TYPE (TREE_OPERAND (t, 0))
1926 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1927 dump_expr (TREE_OPERAND (t, 0), flags);
1929 dump_unary_op ("*", t, flags);
1935 case TRUTH_NOT_EXPR:
1936 case PREDECREMENT_EXPR:
1937 case PREINCREMENT_EXPR:
1938 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1941 case POSTDECREMENT_EXPR:
1942 case POSTINCREMENT_EXPR:
1943 pp_cxx_left_paren (cxx_pp);
1944 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1945 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1946 pp_cxx_right_paren (cxx_pp);
1949 case NON_LVALUE_EXPR:
1950 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1951 should be another level of INDIRECT_REF so that I don't have to do
1953 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1955 tree next = TREE_TYPE (TREE_TYPE (t));
1957 while (TREE_CODE (next) == POINTER_TYPE)
1958 next = TREE_TYPE (next);
1960 if (TREE_CODE (next) == FUNCTION_TYPE)
1962 if (flags & TFF_EXPR_IN_PARENS)
1963 pp_cxx_left_paren (cxx_pp);
1964 pp_cxx_star (cxx_pp);
1965 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1966 if (flags & TFF_EXPR_IN_PARENS)
1967 pp_cxx_right_paren (cxx_pp);
1970 /* Else fall through. */
1972 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1976 case VIEW_CONVERT_EXPR:
1978 tree op = TREE_OPERAND (t, 0);
1979 tree ttype = TREE_TYPE (t);
1980 tree optype = TREE_TYPE (op);
1982 if (TREE_CODE (ttype) != TREE_CODE (optype)
1983 && POINTER_TYPE_P (ttype)
1984 && POINTER_TYPE_P (optype)
1985 && same_type_p (TREE_TYPE (optype),
1988 if (TREE_CODE (ttype) == REFERENCE_TYPE)
1989 dump_unary_op ("*", t, flags);
1991 dump_unary_op ("&", t, flags);
1993 else if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1995 /* It is a cast, but we cannot tell whether it is a
1996 reinterpret or static cast. Use the C style notation. */
1997 if (flags & TFF_EXPR_IN_PARENS)
1998 pp_cxx_left_paren (cxx_pp);
1999 pp_cxx_left_paren (cxx_pp);
2000 dump_type (TREE_TYPE (t), flags);
2001 pp_cxx_right_paren (cxx_pp);
2002 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
2003 if (flags & TFF_EXPR_IN_PARENS)
2004 pp_cxx_right_paren (cxx_pp);
2007 dump_expr (op, flags);
2012 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
2014 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
2016 if (integer_zerop (idx))
2018 /* A NULL pointer-to-member constant. */
2019 pp_cxx_left_paren (cxx_pp);
2020 pp_cxx_left_paren (cxx_pp);
2021 dump_type (TREE_TYPE (t), flags);
2022 pp_cxx_right_paren (cxx_pp);
2023 pp_character (cxx_pp, '0');
2024 pp_cxx_right_paren (cxx_pp);
2027 else if (host_integerp (idx, 0))
2030 unsigned HOST_WIDE_INT n;
2032 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
2033 t = TYPE_METHOD_BASETYPE (t);
2034 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
2036 n = tree_low_cst (idx, 0);
2038 /* Map vtable index back one, to allow for the null pointer to
2042 while (n > 0 && virtuals)
2045 virtuals = TREE_CHAIN (virtuals);
2049 dump_expr (BV_FN (virtuals),
2050 flags | TFF_EXPR_IN_PARENS);
2055 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
2057 dump_type (TREE_TYPE (t), 0);
2058 pp_cxx_left_paren (cxx_pp);
2059 pp_cxx_right_paren (cxx_pp);
2063 pp_cxx_left_brace (cxx_pp);
2064 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
2065 pp_cxx_right_brace (cxx_pp);
2072 tree ob = TREE_OPERAND (t, 0);
2073 if (is_dummy_object (ob))
2075 t = TREE_OPERAND (t, 1);
2076 if (TREE_CODE (t) == FUNCTION_DECL)
2078 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
2079 else if (BASELINK_P (t))
2080 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
2081 flags | TFF_EXPR_IN_PARENS);
2083 dump_decl (t, flags);
2087 if (TREE_CODE (ob) == INDIRECT_REF)
2089 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
2090 pp_cxx_arrow (cxx_pp);
2091 pp_cxx_star (cxx_pp);
2095 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2096 pp_cxx_dot (cxx_pp);
2097 pp_cxx_star (cxx_pp);
2099 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2104 case TEMPLATE_PARM_INDEX:
2105 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2109 if (TREE_OPERAND (t, 0) == NULL_TREE
2110 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2112 dump_type (TREE_TYPE (t), flags);
2113 pp_cxx_left_paren (cxx_pp);
2114 dump_expr_list (TREE_OPERAND (t, 0), flags);
2115 pp_cxx_right_paren (cxx_pp);
2119 pp_cxx_left_paren (cxx_pp);
2120 dump_type (TREE_TYPE (t), flags);
2121 pp_cxx_right_paren (cxx_pp);
2122 pp_cxx_left_paren (cxx_pp);
2123 dump_expr_list (TREE_OPERAND (t, 0), flags);
2124 pp_cxx_right_paren (cxx_pp);
2128 case STATIC_CAST_EXPR:
2129 pp_cxx_ws_string (cxx_pp, "static_cast");
2131 case REINTERPRET_CAST_EXPR:
2132 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2134 case CONST_CAST_EXPR:
2135 pp_cxx_ws_string (cxx_pp, "const_cast");
2137 case DYNAMIC_CAST_EXPR:
2138 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2140 pp_cxx_begin_template_argument_list (cxx_pp);
2141 dump_type (TREE_TYPE (t), flags);
2142 pp_cxx_end_template_argument_list (cxx_pp);
2143 pp_cxx_left_paren (cxx_pp);
2144 dump_expr (TREE_OPERAND (t, 0), flags);
2145 pp_cxx_right_paren (cxx_pp);
2149 dump_expr (TREE_OPERAND (t, 0), flags);
2150 pp_cxx_arrow (cxx_pp);
2155 if (TREE_CODE (t) == SIZEOF_EXPR)
2156 pp_cxx_ws_string (cxx_pp, "sizeof");
2159 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2160 pp_cxx_ws_string (cxx_pp, "__alignof__");
2162 pp_cxx_whitespace (cxx_pp);
2163 pp_cxx_left_paren (cxx_pp);
2164 if (TYPE_P (TREE_OPERAND (t, 0)))
2165 dump_type (TREE_OPERAND (t, 0), flags);
2167 dump_expr (TREE_OPERAND (t, 0), flags);
2168 pp_cxx_right_paren (cxx_pp);
2171 case AT_ENCODE_EXPR:
2172 pp_cxx_ws_string (cxx_pp, "@encode");
2173 pp_cxx_whitespace (cxx_pp);
2174 pp_cxx_left_paren (cxx_pp);
2175 dump_type (TREE_OPERAND (t, 0), flags);
2176 pp_cxx_right_paren (cxx_pp);
2180 pp_cxx_ws_string (cxx_pp, "noexcept");
2181 pp_cxx_whitespace (cxx_pp);
2182 pp_cxx_left_paren (cxx_pp);
2183 dump_expr (TREE_OPERAND (t, 0), flags);
2184 pp_cxx_right_paren (cxx_pp);
2189 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2190 pp_cxx_whitespace (cxx_pp);
2191 dump_expr (TREE_OPERAND (t, 0), flags);
2195 pp_string (cxx_pp, M_("<unparsed>"));
2198 case TRY_CATCH_EXPR:
2199 case WITH_CLEANUP_EXPR:
2200 case CLEANUP_POINT_EXPR:
2201 dump_expr (TREE_OPERAND (t, 0), flags);
2204 case PSEUDO_DTOR_EXPR:
2205 dump_expr (TREE_OPERAND (t, 2), flags);
2206 pp_cxx_dot (cxx_pp);
2207 dump_type (TREE_OPERAND (t, 0), flags);
2208 pp_cxx_colon_colon (cxx_pp);
2209 pp_cxx_complement (cxx_pp);
2210 dump_type (TREE_OPERAND (t, 1), flags);
2213 case TEMPLATE_ID_EXPR:
2214 dump_decl (t, flags);
2220 case STATEMENT_LIST:
2221 /* We don't yet have a way of dumping statements in a
2222 human-readable format. */
2223 pp_string (cxx_pp, "({...})");
2227 pp_string (cxx_pp, "while (1) { ");
2228 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2229 pp_cxx_right_brace (cxx_pp);
2233 pp_string (cxx_pp, "if (");
2234 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2235 pp_string (cxx_pp, ") break; ");
2239 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2242 case EMPTY_CLASS_EXPR:
2243 dump_type (TREE_TYPE (t), flags);
2244 pp_cxx_left_paren (cxx_pp);
2245 pp_cxx_right_paren (cxx_pp);
2248 case NON_DEPENDENT_EXPR:
2249 dump_expr (TREE_OPERAND (t, 0), flags);
2252 case ARGUMENT_PACK_SELECT:
2253 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2265 pp_type_specifier_seq (cxx_pp, t);
2269 /* We get here when we want to print a dependent type as an
2270 id-expression, without any disambiguator decoration. */
2271 pp_id_expression (cxx_pp, t);
2274 case TEMPLATE_TYPE_PARM:
2275 case BOUND_TEMPLATE_TEMPLATE_PARM:
2276 dump_type (t, flags);
2280 pp_cxx_trait_expression (cxx_pp, t);
2284 pp_cxx_va_arg_expression (cxx_pp, t);
2288 pp_cxx_offsetof_expression (cxx_pp, t);
2292 dump_decl (t, flags);
2295 case EXPR_PACK_EXPANSION:
2302 case VEC_DELETE_EXPR:
2308 case UNORDERED_EXPR:
2318 case FIX_TRUNC_EXPR:
2320 pp_expression (cxx_pp, t);
2323 case TRUTH_AND_EXPR:
2325 case TRUTH_XOR_EXPR:
2326 if (flags & TFF_EXPR_IN_PARENS)
2327 pp_cxx_left_paren (cxx_pp);
2328 pp_expression (cxx_pp, t);
2329 if (flags & TFF_EXPR_IN_PARENS)
2330 pp_cxx_right_paren (cxx_pp);
2334 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2337 /* This list is incomplete, but should suffice for now.
2338 It is very important that `sorry' does not call
2339 `report_error_function'. That could cause an infinite loop. */
2341 pp_unsupported_tree (cxx_pp, t);
2342 /* fall through to ERROR_MARK... */
2344 pp_string (cxx_pp, M_("<expression error>"));
2350 dump_binary_op (const char *opstring, tree t, int flags)
2352 pp_cxx_left_paren (cxx_pp);
2353 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2354 pp_cxx_whitespace (cxx_pp);
2356 pp_cxx_ws_string (cxx_pp, opstring);
2358 pp_string (cxx_pp, M_("<unknown operator>"));
2359 pp_cxx_whitespace (cxx_pp);
2360 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2361 pp_cxx_right_paren (cxx_pp);
2365 dump_unary_op (const char *opstring, tree t, int flags)
2367 if (flags & TFF_EXPR_IN_PARENS)
2368 pp_cxx_left_paren (cxx_pp);
2369 pp_cxx_ws_string (cxx_pp, opstring);
2370 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2371 if (flags & TFF_EXPR_IN_PARENS)
2372 pp_cxx_right_paren (cxx_pp);
2376 reinit_cxx_pp (void)
2378 pp_clear_output_area (cxx_pp);
2379 pp_base (cxx_pp)->padding = pp_none;
2380 pp_indentation (cxx_pp) = 0;
2381 pp_needs_newline (cxx_pp) = false;
2382 cxx_pp->enclosing_scope = current_function_decl;
2386 /* Exported interface to stringifying types, exprs and decls under TFF_*
2390 type_as_string (tree typ, int flags)
2393 pp_translate_identifiers (cxx_pp) = false;
2394 dump_type (typ, flags);
2395 return pp_formatted_text (cxx_pp);
2399 type_as_string_translate (tree typ, int flags)
2402 dump_type (typ, flags);
2403 return pp_formatted_text (cxx_pp);
2407 expr_as_string (tree decl, int flags)
2410 pp_translate_identifiers (cxx_pp) = false;
2411 dump_expr (decl, flags);
2412 return pp_formatted_text (cxx_pp);
2416 decl_as_string (tree decl, int flags)
2419 pp_translate_identifiers (cxx_pp) = false;
2420 dump_decl (decl, flags);
2421 return pp_formatted_text (cxx_pp);
2425 decl_as_string_translate (tree decl, int flags)
2428 dump_decl (decl, flags);
2429 return pp_formatted_text (cxx_pp);
2432 /* Generate the three forms of printable names for cxx_printable_name. */
2435 lang_decl_name (tree decl, int v, bool translate)
2439 ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
2440 : decl_as_string (decl, TFF_DECL_SPECIFIERS));
2443 pp_translate_identifiers (cxx_pp) = translate;
2445 && (DECL_CLASS_SCOPE_P (decl)
2446 || (DECL_NAMESPACE_SCOPE_P (decl)
2447 && CP_DECL_CONTEXT (decl) != global_namespace)))
2449 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2450 pp_cxx_colon_colon (cxx_pp);
2453 if (TREE_CODE (decl) == FUNCTION_DECL)
2454 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2456 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2458 return pp_formatted_text (cxx_pp);
2461 /* Return the location of a tree passed to %+ formats. */
2464 location_of (tree t)
2466 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2467 t = DECL_CONTEXT (t);
2468 else if (TYPE_P (t))
2469 t = TYPE_MAIN_DECL (t);
2470 else if (TREE_CODE (t) == OVERLOAD)
2471 t = OVL_FUNCTION (t);
2474 return DECL_SOURCE_LOCATION (t);
2475 return EXPR_LOC_OR_HERE (t);
2478 /* Now the interfaces from error et al to dump_type et al. Each takes an
2479 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2483 decl_to_string (tree decl, int verbose)
2487 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2488 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2489 flags = TFF_CLASS_KEY_OR_ENUM;
2491 flags |= TFF_DECL_SPECIFIERS;
2492 else if (TREE_CODE (decl) == FUNCTION_DECL)
2493 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2494 flags |= TFF_TEMPLATE_HEADER;
2497 dump_decl (decl, flags);
2498 return pp_formatted_text (cxx_pp);
2502 expr_to_string (tree decl)
2505 dump_expr (decl, 0);
2506 return pp_formatted_text (cxx_pp);
2510 fndecl_to_string (tree fndecl, int verbose)
2514 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2515 | TFF_TEMPLATE_HEADER;
2517 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2519 dump_decl (fndecl, flags);
2520 return pp_formatted_text (cxx_pp);
2525 code_to_string (enum tree_code c)
2527 return tree_code_name [c];
2531 language_to_string (enum languages c)
2538 case lang_cplusplus:
2550 /* Return the proper printed version of a parameter to a C++ function. */
2553 parm_to_string (int p)
2557 pp_string (cxx_pp, "'this'");
2559 pp_decimal_int (cxx_pp, p + 1);
2560 return pp_formatted_text (cxx_pp);
2564 op_to_string (enum tree_code p)
2566 tree id = operator_name_info[(int) p].identifier;
2567 return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
2571 type_to_string (tree typ, int verbose)
2575 flags |= TFF_CLASS_KEY_OR_ENUM;
2576 flags |= TFF_TEMPLATE_HEADER;
2579 dump_type (typ, flags);
2580 return pp_formatted_text (cxx_pp);
2584 assop_to_string (enum tree_code p)
2586 tree id = assignment_operator_name_info[(int) p].identifier;
2587 return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
2591 args_to_string (tree p, int verbose)
2595 flags |= TFF_CLASS_KEY_OR_ENUM;
2600 if (TYPE_P (TREE_VALUE (p)))
2601 return type_as_string_translate (p, flags);
2604 for (; p; p = TREE_CHAIN (p))
2606 if (TREE_VALUE (p) == null_node)
2607 pp_cxx_ws_string (cxx_pp, "NULL");
2609 dump_type (error_type (TREE_VALUE (p)), flags);
2611 pp_separate_with_comma (cxx_pp);
2613 return pp_formatted_text (cxx_pp);
2617 cv_to_string (tree p, int v)
2620 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2621 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2622 return pp_formatted_text (cxx_pp);
2625 /* Langhook for print_error_function. */
2627 cxx_print_error_function (diagnostic_context *context, const char *file,
2628 diagnostic_info *diagnostic)
2630 lhd_print_error_function (context, file, diagnostic);
2631 pp_base_set_prefix (context->printer, file);
2632 maybe_print_instantiation_context (context);
2636 cp_diagnostic_starter (diagnostic_context *context,
2637 diagnostic_info *diagnostic)
2639 diagnostic_report_current_module (context);
2640 cp_print_error_function (context, diagnostic);
2641 maybe_print_instantiation_context (context);
2642 maybe_print_constexpr_context (context);
2643 pp_base_set_prefix (context->printer, diagnostic_build_prefix (context,
2648 cp_diagnostic_finalizer (diagnostic_context *context,
2649 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2651 pp_base_destroy_prefix (context->printer);
2654 /* Print current function onto BUFFER, in the process of reporting
2655 a diagnostic message. Called from cp_diagnostic_starter. */
2657 cp_print_error_function (diagnostic_context *context,
2658 diagnostic_info *diagnostic)
2660 if (diagnostic_last_function_changed (context, diagnostic))
2662 const char *old_prefix = context->printer->prefix;
2663 const char *file = LOCATION_FILE (diagnostic->location);
2664 tree abstract_origin = diagnostic_abstract_origin (diagnostic);
2665 char *new_prefix = (file && abstract_origin == NULL)
2666 ? file_name_as_prefix (file) : NULL;
2668 pp_base_set_prefix (context->printer, new_prefix);
2670 if (current_function_decl == NULL)
2671 pp_base_string (context->printer, _("At global scope:"));
2676 if (abstract_origin)
2678 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2679 while (TREE_CODE (ao) == BLOCK
2680 && BLOCK_ABSTRACT_ORIGIN (ao)
2681 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2682 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2683 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2687 fndecl = current_function_decl;
2689 pp_printf (context->printer, function_category (fndecl),
2690 cxx_printable_name_translate (fndecl, 2));
2692 while (abstract_origin)
2695 tree block = abstract_origin;
2697 locus = &BLOCK_SOURCE_LOCATION (block);
2699 block = BLOCK_SUPERCONTEXT (block);
2700 while (block && TREE_CODE (block) == BLOCK
2701 && BLOCK_ABSTRACT_ORIGIN (block))
2703 ao = BLOCK_ABSTRACT_ORIGIN (block);
2705 while (TREE_CODE (ao) == BLOCK
2706 && BLOCK_ABSTRACT_ORIGIN (ao)
2707 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2708 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2710 if (TREE_CODE (ao) == FUNCTION_DECL)
2715 else if (TREE_CODE (ao) != BLOCK)
2718 block = BLOCK_SUPERCONTEXT (block);
2721 abstract_origin = block;
2724 while (block && TREE_CODE (block) == BLOCK)
2725 block = BLOCK_SUPERCONTEXT (block);
2727 if (block && TREE_CODE (block) == FUNCTION_DECL)
2729 abstract_origin = NULL;
2733 expanded_location s = expand_location (*locus);
2734 pp_base_character (context->printer, ',');
2735 pp_base_newline (context->printer);
2738 if (context->show_column && s.column != 0)
2739 pp_printf (context->printer,
2740 _(" inlined from %qs at %s:%d:%d"),
2741 cxx_printable_name_translate (fndecl, 2),
2742 s.file, s.line, s.column);
2744 pp_printf (context->printer,
2745 _(" inlined from %qs at %s:%d"),
2746 cxx_printable_name_translate (fndecl, 2),
2751 pp_printf (context->printer, _(" inlined from %qs"),
2752 cxx_printable_name_translate (fndecl, 2));
2755 pp_base_character (context->printer, ':');
2757 pp_base_newline (context->printer);
2759 diagnostic_set_last_function (context, diagnostic);
2760 pp_base_destroy_prefix (context->printer);
2761 context->printer->prefix = old_prefix;
2765 /* Returns a description of FUNCTION using standard terminology. The
2766 result is a format string of the form "In CATEGORY %qs". */
2768 function_category (tree fn)
2770 /* We can get called from the middle-end for diagnostics of function
2771 clones. Make sure we have language specific information before
2772 dereferencing it. */
2773 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn))
2774 && DECL_FUNCTION_MEMBER_P (fn))
2776 if (DECL_STATIC_FUNCTION_P (fn))
2777 return _("In static member function %qs");
2778 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2779 return _("In copy constructor %qs");
2780 else if (DECL_CONSTRUCTOR_P (fn))
2781 return _("In constructor %qs");
2782 else if (DECL_DESTRUCTOR_P (fn))
2783 return _("In destructor %qs");
2784 else if (LAMBDA_FUNCTION_P (fn))
2785 return _("In lambda function");
2787 return _("In member function %qs");
2790 return _("In function %qs");
2793 /* Report the full context of a current template instantiation,
2796 print_instantiation_full_context (diagnostic_context *context)
2798 struct tinst_level *p = current_instantiation ();
2799 location_t location = input_location;
2803 if (current_function_decl != p->decl
2804 && current_function_decl != NULL_TREE)
2805 /* We can get here during the processing of some synthesized
2806 method. Then, P->DECL will be the function that's causing
2811 if (current_function_decl == p->decl)
2812 /* Avoid redundancy with the "In function" line. */;
2814 pp_verbatim (context->printer,
2815 _("%s: In instantiation of %qs:\n"),
2816 LOCATION_FILE (location),
2817 decl_as_string_translate (p->decl,
2818 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2820 location = p->locus;
2825 print_instantiation_partial_context (context, p, location);
2828 /* Helper function of print_instantiation_partial_context() that
2829 prints a single line of instantiation context. */
2832 print_instantiation_partial_context_line (diagnostic_context *context,
2833 const struct tinst_level *t,
2834 location_t loc, bool recursive_p)
2836 expanded_location xloc;
2837 xloc = expand_location (loc);
2842 str = decl_as_string_translate (t->decl,
2843 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE);
2844 if (context->show_column)
2845 pp_verbatim (context->printer,
2847 ? _("%s:%d:%d: recursively instantiated from %qs\n")
2848 : _("%s:%d:%d: instantiated from %qs\n"),
2849 xloc.file, xloc.line, xloc.column, str);
2851 pp_verbatim (context->printer,
2853 ? _("%s:%d: recursively instantiated from %qs\n")
2854 : _("%s:%d: recursively instantiated from %qs\n"),
2855 xloc.file, xloc.line, str);
2859 if (context->show_column)
2860 pp_verbatim (context->printer,
2862 ? _("%s:%d:%d: recursively instantiated from here")
2863 : _("%s:%d:%d: instantiated from here"),
2864 xloc.file, xloc.line, xloc.column);
2866 pp_verbatim (context->printer,
2868 ? _("%s:%d: recursively instantiated from here")
2869 : _("%s:%d: instantiated from here"),
2870 xloc.file, xloc.line);
2874 /* Same as print_instantiation_full_context but less verbose. */
2877 print_instantiation_partial_context (diagnostic_context *context,
2878 struct tinst_level *t0, location_t loc)
2880 struct tinst_level *t;
2883 location_t prev_loc = loc;
2885 for (t = t0; t != NULL; t = t->next)
2886 if (prev_loc != t->locus)
2888 prev_loc = t->locus;
2896 int skip = n_total - 10;
2897 for (n = 0; n < 5; n++)
2899 gcc_assert (t != NULL);
2900 if (loc != t->locus)
2901 print_instantiation_partial_context_line (context, t, loc,
2902 /*recursive_p=*/false);
2906 if (t != NULL && skip > 1)
2908 expanded_location xloc;
2909 xloc = expand_location (loc);
2910 if (context->show_column)
2911 pp_verbatim (context->printer,
2912 _("%s:%d:%d: [ skipping %d instantiation contexts ]\n"),
2913 xloc.file, xloc.line, xloc.column, skip);
2915 pp_verbatim (context->printer,
2916 _("%s:%d: [ skipping %d instantiation contexts ]\n"),
2917 xloc.file, xloc.line, skip);
2922 } while (t != NULL && --skip > 0);
2928 while (t->next != NULL && t->locus == t->next->locus)
2933 print_instantiation_partial_context_line (context, t, loc,
2938 print_instantiation_partial_context_line (context, NULL, loc,
2939 /*recursive_p=*/false);
2940 pp_base_newline (context->printer);
2943 /* Called from cp_thing to print the template context for an error. */
2945 maybe_print_instantiation_context (diagnostic_context *context)
2947 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2950 record_last_problematic_instantiation ();
2951 print_instantiation_full_context (context);
2954 /* Report the bare minimum context of a template instantiation. */
2956 print_instantiation_context (void)
2958 print_instantiation_partial_context
2959 (global_dc, current_instantiation (), input_location);
2960 diagnostic_flush_buffer (global_dc);
2963 /* Report what constexpr call(s) we're trying to expand, if any. */
2966 maybe_print_constexpr_context (diagnostic_context *context)
2968 VEC(tree,heap) *call_stack = cx_error_context ();
2972 FOR_EACH_VEC_ELT (tree, call_stack, ix, t)
2974 expanded_location xloc = expand_location (EXPR_LOCATION (t));
2975 const char *s = expr_as_string (t, 0);
2976 if (context->show_column)
2977 pp_verbatim (context->printer,
2978 _("%s:%d:%d: in constexpr expansion of %qs"),
2979 xloc.file, xloc.line, xloc.column, s);
2981 pp_verbatim (context->printer,
2982 _("%s:%d: in constexpr expansion of %qs"),
2983 xloc.file, xloc.line, s);
2984 pp_base_newline (context->printer);
2988 /* Called from output_format -- during diagnostic message processing --
2989 to handle C++ specific format specifier with the following meanings:
2990 %A function argument-list.
2994 %F function declaration.
2995 %L language as used in extern "lang".
2997 %P function parameter whose position is indicated by an integer.
2998 %Q assignment operator.
3002 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
3003 int precision, bool wide, bool set_locus, bool verbose)
3007 #define next_tree (t = va_arg (*text->args_ptr, tree))
3008 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
3009 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
3010 #define next_int va_arg (*text->args_ptr, int)
3012 if (precision != 0 || wide)
3015 if (text->locus == NULL)
3020 case 'A': result = args_to_string (next_tree, verbose); break;
3021 case 'C': result = code_to_string (next_tcode); break;
3024 tree temp = next_tree;
3026 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
3028 temp = DECL_DEBUG_EXPR (temp);
3031 result = expr_to_string (temp);
3035 result = decl_to_string (temp, verbose);
3038 case 'E': result = expr_to_string (next_tree); break;
3039 case 'F': result = fndecl_to_string (next_tree, verbose); break;
3040 case 'L': result = language_to_string (next_lang); break;
3041 case 'O': result = op_to_string (next_tcode); break;
3042 case 'P': result = parm_to_string (next_int); break;
3043 case 'Q': result = assop_to_string (next_tcode); break;
3044 case 'T': result = type_to_string (next_tree, verbose); break;
3045 case 'V': result = cv_to_string (next_tree, verbose); break;
3048 percent_K_format (text);
3055 pp_base_string (pp, result);
3056 if (set_locus && t != NULL)
3057 *text->locus = location_of (t);
3065 /* Warn about the use of C++0x features when appropriate. */
3067 maybe_warn_cpp0x (cpp0x_warn_str str)
3069 if ((cxx_dialect == cxx98) && !in_system_header)
3070 /* We really want to suppress this warning in system headers,
3071 because libstdc++ uses variadic templates even when we aren't
3075 case CPP0X_INITIALIZER_LISTS:
3076 pedwarn (input_location, 0,
3077 "extended initializer lists "
3078 "only available with -std=c++0x or -std=gnu++0x");
3080 case CPP0X_EXPLICIT_CONVERSION:
3081 pedwarn (input_location, 0,
3082 "explicit conversion operators "
3083 "only available with -std=c++0x or -std=gnu++0x");
3085 case CPP0X_VARIADIC_TEMPLATES:
3086 pedwarn (input_location, 0,
3087 "variadic templates "
3088 "only available with -std=c++0x or -std=gnu++0x");
3090 case CPP0X_LAMBDA_EXPR:
3091 pedwarn (input_location, 0,
3092 "lambda expressions "
3093 "only available with -std=c++0x or -std=gnu++0x");
3096 pedwarn (input_location, 0,
3097 "C++0x auto only available with -std=c++0x or -std=gnu++0x");
3099 case CPP0X_SCOPED_ENUMS:
3100 pedwarn (input_location, 0,
3101 "scoped enums only available with -std=c++0x or -std=gnu++0x");
3103 case CPP0X_DEFAULTED_DELETED:
3104 pedwarn (input_location, 0,
3105 "defaulted and deleted functions "
3106 "only available with -std=c++0x or -std=gnu++0x");
3108 case CPP0X_INLINE_NAMESPACES:
3109 pedwarn (input_location, OPT_pedantic,
3110 "inline namespaces "
3111 "only available with -std=c++0x or -std=gnu++0x");
3118 /* Warn about the use of variadic templates when appropriate. */
3120 maybe_warn_variadic_templates (void)
3122 maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES);
3126 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
3127 option OPT with text GMSGID. Use this function to report
3128 diagnostics for constructs that are invalid C++98, but valid
3131 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
3133 diagnostic_info diagnostic;
3136 va_start (ap, gmsgid);
3137 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
3138 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
3139 diagnostic.option_index = opt;
3141 return report_diagnostic (&diagnostic);