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_instantiation_context (diagnostic_context *);
90 static void print_instantiation_full_context (diagnostic_context *);
91 static void print_instantiation_partial_context (diagnostic_context *,
94 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
95 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
96 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
98 static bool cp_printer (pretty_printer *, text_info *, const char *,
99 int, bool, bool, bool);
100 static location_t location_of (tree);
105 diagnostic_starter (global_dc) = cp_diagnostic_starter;
106 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
107 diagnostic_format_decoder (global_dc) = cp_printer;
109 pp_construct (pp_base (cxx_pp), NULL, 0);
110 pp_cxx_pretty_printer_init (cxx_pp);
113 /* Dump a scope, if deemed necessary. */
116 dump_scope (tree scope, int flags)
118 int f = ~TFF_RETURN_TYPE & (flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF));
120 if (scope == NULL_TREE)
123 if (TREE_CODE (scope) == NAMESPACE_DECL)
125 if (scope != global_namespace)
127 dump_decl (scope, f);
128 pp_cxx_colon_colon (cxx_pp);
131 else if (AGGREGATE_TYPE_P (scope))
133 dump_type (scope, f);
134 pp_cxx_colon_colon (cxx_pp);
136 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
138 dump_function_decl (scope, f);
139 pp_cxx_colon_colon (cxx_pp);
143 /* Dump the template ARGument under control of FLAGS. */
146 dump_template_argument (tree arg, int flags)
148 if (ARGUMENT_PACK_P (arg))
149 dump_template_argument_list (ARGUMENT_PACK_ARGS (arg), flags);
150 else if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
151 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
154 if (TREE_CODE (arg) == TREE_LIST)
155 arg = TREE_VALUE (arg);
157 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
161 /* Count the number of template arguments ARGS whose value does not
162 match the (optional) default template parameter in PARAMS */
165 get_non_default_template_args_count (tree args, int flags)
167 int n = TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (args));
169 if (/* We use this flag when generating debug information. We don't
170 want to expand templates at this point, for this may generate
171 new decls, which gets decl counts out of sync, which may in
172 turn cause codegen differences between compilations with and
174 (flags & TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS) != 0
175 || !flag_pretty_templates)
178 return GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT (INNERMOST_TEMPLATE_ARGS (args));
181 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
185 dump_template_argument_list (tree args, int flags)
187 int n = get_non_default_template_args_count (args, flags);
191 for (i = 0; i < n; ++i)
193 tree arg = TREE_VEC_ELT (args, i);
195 /* Only print a comma if we know there is an argument coming. In
196 the case of an empty template argument pack, no actual
197 argument will be printed. */
199 && (!ARGUMENT_PACK_P (arg)
200 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
201 pp_separate_with_comma (cxx_pp);
203 dump_template_argument (arg, flags);
208 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
211 dump_template_parameter (tree parm, int flags)
216 if (parm == error_mark_node)
219 p = TREE_VALUE (parm);
220 a = TREE_PURPOSE (parm);
222 if (TREE_CODE (p) == TYPE_DECL)
224 if (flags & TFF_DECL_SPECIFIERS)
226 pp_cxx_ws_string (cxx_pp, "class");
227 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
228 pp_cxx_ws_string (cxx_pp, "...");
230 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
232 else if (DECL_NAME (p))
233 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
235 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
238 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
240 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
242 pp_cxx_whitespace (cxx_pp);
244 pp_cxx_whitespace (cxx_pp);
245 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
246 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
248 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
252 /* Dump, under control of FLAGS, a template-parameter-list binding.
253 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
257 dump_template_bindings (tree parms, tree args, VEC(tree,gc)* typenames)
265 tree p = TREE_VALUE (parms);
266 int lvl = TMPL_PARMS_DEPTH (parms);
269 tree lvl_args = NULL_TREE;
271 /* Don't crash if we had an invalid argument list. */
272 if (TMPL_ARGS_DEPTH (args) >= lvl)
273 lvl_args = TMPL_ARGS_LEVEL (args, lvl);
275 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
277 tree arg = NULL_TREE;
279 /* Don't crash if we had an invalid argument list. */
280 if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
281 arg = TREE_VEC_ELT (lvl_args, arg_idx);
284 pp_separate_with_comma (cxx_pp);
285 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
286 pp_cxx_whitespace (cxx_pp);
288 pp_cxx_whitespace (cxx_pp);
291 if (ARGUMENT_PACK_P (arg))
292 pp_cxx_left_brace (cxx_pp);
293 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
294 if (ARGUMENT_PACK_P (arg))
295 pp_cxx_right_brace (cxx_pp);
298 pp_string (cxx_pp, M_("<missing>"));
304 parms = TREE_CHAIN (parms);
307 for (i = 0; VEC_iterate (tree, typenames, i, t); ++i)
310 pp_separate_with_comma (cxx_pp);
311 dump_type (t, TFF_PLAIN_IDENTIFIER);
312 pp_cxx_whitespace (cxx_pp);
314 pp_cxx_whitespace (cxx_pp);
315 t = tsubst (t, args, tf_none, NULL_TREE);
316 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
317 pp_simple_type_specifier doesn't know about it. */
318 t = strip_typedefs (t);
319 dump_type (t, TFF_PLAIN_IDENTIFIER);
323 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
327 dump_type (tree t, int flags)
332 if (TYPE_PTRMEMFUNC_P (t))
335 switch (TREE_CODE (t))
338 if (t == init_list_type_node)
339 pp_string (cxx_pp, M_("<brace-enclosed initializer list>"));
340 else if (t == unknown_type_node)
341 pp_string (cxx_pp, M_("<unresolved overloaded function type>"));
344 pp_cxx_cv_qualifier_seq (cxx_pp, t);
345 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
350 /* A list of function parms. */
351 dump_parameters (t, flags);
354 case IDENTIFIER_NODE:
355 pp_cxx_tree_identifier (cxx_pp, t);
359 dump_type (BINFO_TYPE (t), flags);
365 dump_aggr_type (t, flags);
369 if (flags & TFF_CHASE_TYPEDEF)
371 dump_type (DECL_ORIGINAL_TYPE (t)
372 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
375 /* Else fall through. */
379 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
388 case FIXED_POINT_TYPE:
389 pp_type_specifier_seq (cxx_pp, t);
392 case TEMPLATE_TEMPLATE_PARM:
393 /* For parameters inside template signature. */
394 if (TYPE_IDENTIFIER (t))
395 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
397 pp_cxx_canonical_template_parameter (cxx_pp, t);
400 case BOUND_TEMPLATE_TEMPLATE_PARM:
402 tree args = TYPE_TI_ARGS (t);
403 pp_cxx_cv_qualifier_seq (cxx_pp, t);
404 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
405 pp_cxx_begin_template_argument_list (cxx_pp);
406 dump_template_argument_list (args, flags);
407 pp_cxx_end_template_argument_list (cxx_pp);
411 case TEMPLATE_TYPE_PARM:
412 pp_cxx_cv_qualifier_seq (cxx_pp, t);
413 if (TYPE_IDENTIFIER (t))
414 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
416 pp_cxx_canonical_template_parameter
417 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
420 /* This is not always necessary for pointers and such, but doing this
421 reduces code size. */
430 dump_type_prefix (t, flags);
431 dump_type_suffix (t, flags);
435 if (! (flags & TFF_CHASE_TYPEDEF)
436 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
438 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
441 pp_cxx_cv_qualifier_seq (cxx_pp, t);
442 pp_cxx_ws_string (cxx_pp,
443 TYPENAME_IS_ENUM_P (t) ? "enum"
444 : TYPENAME_IS_CLASS_P (t) ? "class"
446 dump_typename (t, flags);
449 case UNBOUND_CLASS_TEMPLATE:
450 if (! (flags & TFF_UNQUALIFIED_NAME))
452 dump_type (TYPE_CONTEXT (t), flags);
453 pp_cxx_colon_colon (cxx_pp);
455 pp_cxx_ws_string (cxx_pp, "template");
456 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
460 pp_cxx_ws_string (cxx_pp, "__typeof__");
461 pp_cxx_whitespace (cxx_pp);
462 pp_cxx_left_paren (cxx_pp);
463 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
464 pp_cxx_right_paren (cxx_pp);
467 case TYPE_PACK_EXPANSION:
468 dump_type (PACK_EXPANSION_PATTERN (t), flags);
469 pp_cxx_ws_string (cxx_pp, "...");
472 case TYPE_ARGUMENT_PACK:
473 dump_template_argument (t, flags);
477 pp_cxx_ws_string (cxx_pp, "decltype");
478 pp_cxx_whitespace (cxx_pp);
479 pp_cxx_left_paren (cxx_pp);
480 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
481 pp_cxx_right_paren (cxx_pp);
485 pp_string (cxx_pp, "std::nullptr_t");
489 pp_unsupported_tree (cxx_pp, t);
490 /* Fall through to error. */
493 pp_string (cxx_pp, M_("<type error>"));
498 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
502 dump_typename (tree t, int flags)
504 tree ctx = TYPE_CONTEXT (t);
506 if (TREE_CODE (ctx) == TYPENAME_TYPE)
507 dump_typename (ctx, flags);
509 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
510 pp_cxx_colon_colon (cxx_pp);
511 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
514 /* Return the name of the supplied aggregate, or enumeral type. */
517 class_key_or_enum_as_string (tree t)
519 if (TREE_CODE (t) == ENUMERAL_TYPE)
521 if (SCOPED_ENUM_P (t))
526 else if (TREE_CODE (t) == UNION_TYPE)
528 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
534 /* Print out a class declaration T under the control of FLAGS,
535 in the form `class foo'. */
538 dump_aggr_type (tree t, int flags)
541 const char *variety = class_key_or_enum_as_string (t);
545 pp_cxx_cv_qualifier_seq (cxx_pp, t);
547 if (flags & TFF_CLASS_KEY_OR_ENUM)
548 pp_cxx_ws_string (cxx_pp, variety);
550 name = TYPE_NAME (t);
554 typdef = !DECL_ARTIFICIAL (name);
557 && ((flags & TFF_CHASE_TYPEDEF)
558 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
559 && DECL_TEMPLATE_INFO (name))))
560 || DECL_SELF_REFERENCE_P (name))
562 t = TYPE_MAIN_VARIANT (t);
563 name = TYPE_NAME (t);
567 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
568 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
569 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
570 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
572 if (! (flags & TFF_UNQUALIFIED_NAME))
573 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
574 flags &= ~TFF_UNQUALIFIED_NAME;
577 /* Because the template names are mangled, we have to locate
578 the most general template, and use that name. */
579 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
581 while (DECL_TEMPLATE_INFO (tpl))
582 tpl = DECL_TI_TEMPLATE (tpl);
585 name = DECL_NAME (name);
588 if (name == 0 || ANON_AGGRNAME_P (name))
590 if (flags & TFF_CLASS_KEY_OR_ENUM)
591 pp_string (cxx_pp, M_("<anonymous>"));
593 pp_printf (pp_base (cxx_pp), M_("<anonymous %s>"), variety);
595 else if (LAMBDANAME_P (name))
597 /* A lambda's "type" is essentially its signature. */
598 pp_string (cxx_pp, M_("<lambda"));
599 if (lambda_function (t))
600 dump_parameters (FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t)),
602 pp_character(cxx_pp, '>');
605 pp_cxx_tree_identifier (cxx_pp, name);
607 dump_template_parms (TYPE_TEMPLATE_INFO (t),
608 !CLASSTYPE_USE_TEMPLATE (t),
609 flags & ~TFF_TEMPLATE_HEADER);
612 /* Dump into the obstack the initial part of the output for a given type.
613 This is necessary when dealing with things like functions returning
616 return type of `int (* fee ())()': pointer -> function -> int. Both
617 pointer (and reference and offset) and function (and member) types must
618 deal with prefix and suffix.
620 Arrays must also do this for DECL nodes, like int a[], and for things like
624 dump_type_prefix (tree t, int flags)
626 if (TYPE_PTRMEMFUNC_P (t))
628 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
632 switch (TREE_CODE (t))
637 tree sub = TREE_TYPE (t);
639 dump_type_prefix (sub, flags);
640 if (TREE_CODE (sub) == ARRAY_TYPE
641 || TREE_CODE (sub) == FUNCTION_TYPE)
643 pp_cxx_whitespace (cxx_pp);
644 pp_cxx_left_paren (cxx_pp);
646 if (TREE_CODE (t) == POINTER_TYPE)
647 pp_character(cxx_pp, '*');
648 else if (TREE_CODE (t) == REFERENCE_TYPE)
650 if (TYPE_REF_IS_RVALUE (t))
651 pp_string (cxx_pp, "&&");
653 pp_character (cxx_pp, '&');
655 pp_base (cxx_pp)->padding = pp_before;
656 pp_cxx_cv_qualifier_seq (cxx_pp, t);
662 dump_type_prefix (TREE_TYPE (t), flags);
663 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
665 pp_maybe_space (cxx_pp);
666 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
667 pp_cxx_left_paren (cxx_pp);
668 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
669 pp_cxx_colon_colon (cxx_pp);
671 pp_cxx_star (cxx_pp);
672 pp_cxx_cv_qualifier_seq (cxx_pp, t);
673 pp_base (cxx_pp)->padding = pp_before;
676 /* This can be reached without a pointer when dealing with
677 templates, e.g. std::is_function. */
679 dump_type_prefix (TREE_TYPE (t), flags);
683 dump_type_prefix (TREE_TYPE (t), flags);
684 pp_maybe_space (cxx_pp);
685 pp_cxx_left_paren (cxx_pp);
686 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
687 pp_cxx_colon_colon (cxx_pp);
691 dump_type_prefix (TREE_TYPE (t), flags);
695 case IDENTIFIER_NODE:
700 case TEMPLATE_TYPE_PARM:
701 case TEMPLATE_TEMPLATE_PARM:
702 case BOUND_TEMPLATE_TEMPLATE_PARM:
714 case TYPE_PACK_EXPANSION:
715 case FIXED_POINT_TYPE:
717 dump_type (t, flags);
718 pp_base (cxx_pp)->padding = pp_before;
722 pp_unsupported_tree (cxx_pp, t);
725 pp_string (cxx_pp, M_("<typeprefixerror>"));
730 /* Dump the suffix of type T, under control of FLAGS. This is the part
731 which appears after the identifier (or function parms). */
734 dump_type_suffix (tree t, int flags)
736 if (TYPE_PTRMEMFUNC_P (t))
737 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
739 switch (TREE_CODE (t))
744 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
745 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
746 pp_cxx_right_paren (cxx_pp);
747 dump_type_suffix (TREE_TYPE (t), flags);
754 if (TREE_CODE (t) == METHOD_TYPE)
755 /* Can only be reached through a pointer. */
756 pp_cxx_right_paren (cxx_pp);
757 arg = TYPE_ARG_TYPES (t);
758 if (TREE_CODE (t) == METHOD_TYPE)
759 arg = TREE_CHAIN (arg);
761 /* Function pointers don't have default args. Not in standard C++,
762 anyway; they may in g++, but we'll just pretend otherwise. */
763 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
765 if (TREE_CODE (t) == METHOD_TYPE)
766 pp_cxx_cv_qualifier_seq
767 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
769 pp_cxx_cv_qualifier_seq (cxx_pp, t);
770 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
771 dump_type_suffix (TREE_TYPE (t), flags);
776 pp_maybe_space (cxx_pp);
777 pp_cxx_left_bracket (cxx_pp);
780 tree dtype = TYPE_DOMAIN (t);
781 tree max = TYPE_MAX_VALUE (dtype);
782 if (host_integerp (max, 0))
783 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
784 else if (TREE_CODE (max) == MINUS_EXPR)
785 dump_expr (TREE_OPERAND (max, 0),
786 flags & ~TFF_EXPR_IN_PARENS);
788 dump_expr (fold_build2_loc (input_location,
789 PLUS_EXPR, dtype, max,
790 build_int_cst (dtype, 1)),
791 flags & ~TFF_EXPR_IN_PARENS);
793 pp_cxx_right_bracket (cxx_pp);
794 dump_type_suffix (TREE_TYPE (t), flags);
798 case IDENTIFIER_NODE:
803 case TEMPLATE_TYPE_PARM:
804 case TEMPLATE_TEMPLATE_PARM:
805 case BOUND_TEMPLATE_TEMPLATE_PARM:
817 case TYPE_PACK_EXPANSION:
818 case FIXED_POINT_TYPE:
823 pp_unsupported_tree (cxx_pp, t);
825 /* Don't mark it here, we should have already done in
832 dump_global_iord (tree t)
834 const char *p = NULL;
836 if (DECL_GLOBAL_CTOR_P (t))
837 p = M_("(static initializers for %s)");
838 else if (DECL_GLOBAL_DTOR_P (t))
839 p = M_("(static destructors for %s)");
843 pp_printf (pp_base (cxx_pp), p, input_filename);
847 dump_simple_decl (tree t, tree type, int flags)
849 if (flags & TFF_DECL_SPECIFIERS)
851 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
852 pp_maybe_space (cxx_pp);
854 if (! (flags & TFF_UNQUALIFIED_NAME)
855 && (!DECL_INITIAL (t)
856 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
857 dump_scope (CP_DECL_CONTEXT (t), flags);
858 flags &= ~TFF_UNQUALIFIED_NAME;
859 if ((flags & TFF_DECL_SPECIFIERS)
860 && DECL_TEMPLATE_PARM_P (t)
861 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
862 pp_string (cxx_pp, "...");
864 dump_decl (DECL_NAME (t), flags);
866 pp_string (cxx_pp, M_("<anonymous>"));
867 if (flags & TFF_DECL_SPECIFIERS)
868 dump_type_suffix (type, flags);
871 /* Dump a human readable string for the decl T under control of FLAGS. */
874 dump_decl (tree t, int flags)
879 switch (TREE_CODE (t))
882 /* Don't say 'typedef class A' */
883 if (DECL_ARTIFICIAL (t) && !DECL_SELF_REFERENCE_P (t))
885 if ((flags & TFF_DECL_SPECIFIERS)
886 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
888 /* Say `class T' not just `T'. */
889 pp_cxx_ws_string (cxx_pp, "class");
891 /* Emit the `...' for a parameter pack. */
892 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
893 pp_cxx_ws_string (cxx_pp, "...");
896 dump_type (TREE_TYPE (t), flags);
899 if ((flags & TFF_DECL_SPECIFIERS)
900 && !DECL_SELF_REFERENCE_P (t))
901 pp_cxx_ws_string (cxx_pp, "typedef");
902 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
903 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
908 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
910 pp_string (cxx_pp, M_("vtable for "));
911 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
912 dump_type (DECL_CONTEXT (t), flags);
915 /* Else fall through. */
918 dump_simple_decl (t, TREE_TYPE (t), flags);
922 pp_string (cxx_pp, M_("<return value> "));
923 dump_simple_decl (t, TREE_TYPE (t), flags);
927 if (flags & TFF_DECL_SPECIFIERS)
928 pp_cxx_declaration (cxx_pp, t);
931 if (! (flags & TFF_UNQUALIFIED_NAME))
932 dump_scope (CP_DECL_CONTEXT (t), flags);
933 flags &= ~TFF_UNQUALIFIED_NAME;
934 if (DECL_NAME (t) == NULL_TREE)
935 pp_string (cxx_pp, M_("<unnamed>"));
937 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
942 dump_type (TREE_OPERAND (t, 0), flags);
943 pp_string (cxx_pp, "::");
944 dump_decl (TREE_OPERAND (t, 1), flags|TFF_UNQUALIFIED_NAME);
948 dump_decl (TREE_OPERAND (t, 0), flags);
949 pp_cxx_left_bracket (cxx_pp);
950 dump_decl (TREE_OPERAND (t, 1), flags);
951 pp_cxx_right_bracket (cxx_pp);
954 /* So that we can do dump_decl on an aggr type. */
958 dump_type (t, flags);
962 /* This is a pseudo destructor call which has not been folded into
963 a PSEUDO_DTOR_EXPR yet. */
964 pp_cxx_complement (cxx_pp);
965 dump_type (TREE_OPERAND (t, 0), flags);
972 /* These special cases are duplicated here so that other functions
973 can feed identifiers to error and get them demangled properly. */
974 case IDENTIFIER_NODE:
975 if (IDENTIFIER_TYPENAME_P (t))
977 pp_cxx_ws_string (cxx_pp, "operator");
978 /* Not exactly IDENTIFIER_TYPE_VALUE. */
979 dump_type (TREE_TYPE (t), flags);
983 pp_cxx_tree_identifier (cxx_pp, t);
990 if (DECL_CLASS_SCOPE_P (t))
992 dump_type (DECL_CONTEXT (t), flags);
993 pp_cxx_colon_colon (cxx_pp);
995 else if (DECL_CONTEXT (t))
997 dump_decl (DECL_CONTEXT (t), flags);
998 pp_cxx_colon_colon (cxx_pp);
1000 dump_decl (DECL_NAME (t), flags);
1004 /* If there's only one function, just treat it like an ordinary
1006 t = OVL_CURRENT (t);
1010 if (! DECL_LANG_SPECIFIC (t))
1011 pp_string (cxx_pp, M_("<built-in>"));
1012 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
1013 dump_global_iord (t);
1015 dump_function_decl (t, flags);
1019 dump_template_decl (t, flags);
1022 case TEMPLATE_ID_EXPR:
1024 tree name = TREE_OPERAND (t, 0);
1026 if (is_overloaded_fn (name))
1027 name = DECL_NAME (get_first_fn (name));
1028 dump_decl (name, flags);
1029 pp_cxx_begin_template_argument_list (cxx_pp);
1030 if (TREE_OPERAND (t, 1))
1031 dump_template_argument_list (TREE_OPERAND (t, 1), flags);
1032 pp_cxx_end_template_argument_list (cxx_pp);
1037 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1041 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1042 || (DECL_INITIAL (t) &&
1043 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1044 dump_simple_decl (t, TREE_TYPE (t), flags);
1045 else if (DECL_NAME (t))
1046 dump_decl (DECL_NAME (t), flags);
1047 else if (DECL_INITIAL (t))
1048 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1050 pp_string (cxx_pp, M_("<enumerator>"));
1054 pp_cxx_ws_string (cxx_pp, "using");
1055 dump_type (USING_DECL_SCOPE (t), flags);
1056 pp_cxx_colon_colon (cxx_pp);
1057 dump_decl (DECL_NAME (t), flags);
1061 pp_cxx_declaration (cxx_pp, t);
1065 dump_decl (BASELINK_FUNCTIONS (t), flags);
1068 case NON_DEPENDENT_EXPR:
1069 dump_expr (t, flags);
1072 case TEMPLATE_TYPE_PARM:
1073 if (flags & TFF_DECL_SPECIFIERS)
1074 pp_cxx_declaration (cxx_pp, t);
1076 pp_type_id (cxx_pp, t);
1079 case UNBOUND_CLASS_TEMPLATE:
1080 case TYPE_PACK_EXPANSION:
1082 dump_type (t, flags);
1086 pp_unsupported_tree (cxx_pp, t);
1087 /* Fall through to error. */
1090 pp_string (cxx_pp, M_("<declaration error>"));
1095 /* Dump a template declaration T under control of FLAGS. This means the
1096 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1099 dump_template_decl (tree t, int flags)
1101 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1105 if (flags & TFF_TEMPLATE_HEADER)
1107 for (parms = orig_parms = nreverse (orig_parms);
1109 parms = TREE_CHAIN (parms))
1111 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1112 int len = TREE_VEC_LENGTH (inner_parms);
1114 pp_cxx_ws_string (cxx_pp, "template");
1115 pp_cxx_begin_template_argument_list (cxx_pp);
1117 /* If we've shown the template prefix, we'd better show the
1118 parameters' and decl's type too. */
1119 flags |= TFF_DECL_SPECIFIERS;
1121 for (i = 0; i < len; i++)
1124 pp_separate_with_comma (cxx_pp);
1125 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1127 pp_cxx_end_template_argument_list (cxx_pp);
1128 pp_cxx_whitespace (cxx_pp);
1130 nreverse(orig_parms);
1132 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1134 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1135 pp_cxx_ws_string (cxx_pp, "class");
1137 /* If this is a parameter pack, print the ellipsis. */
1138 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1139 pp_cxx_ws_string (cxx_pp, "...");
1143 if (DECL_TEMPLATE_RESULT (t)
1144 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1145 dump_type (TREE_TYPE (t),
1146 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1147 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1148 else if (DECL_TEMPLATE_RESULT (t)
1149 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1150 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1153 gcc_assert (TREE_TYPE (t));
1154 switch (NEXT_CODE (t))
1158 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1161 /* This case can occur with some invalid code. */
1162 dump_type (TREE_TYPE (t),
1163 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1164 | (flags & TFF_DECL_SPECIFIERS
1165 ? TFF_CLASS_KEY_OR_ENUM : 0));
1170 /* find_typenames looks through the type of the function template T
1171 and returns a VEC containing any typedefs, decltypes or TYPENAME_TYPEs
1174 struct find_typenames_t
1176 struct pointer_set_t *p_set;
1177 VEC (tree,gc) *typenames;
1181 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1183 struct find_typenames_t *d = (struct find_typenames_t *)data;
1184 tree mv = NULL_TREE;
1186 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1187 /* Add the type of the typedef without any additional cv-quals. */
1188 mv = TREE_TYPE (TYPE_NAME (*tp));
1189 else if (TREE_CODE (*tp) == TYPENAME_TYPE
1190 || TREE_CODE (*tp) == DECLTYPE_TYPE)
1191 /* Add the typename without any cv-qualifiers. */
1192 mv = TYPE_MAIN_VARIANT (*tp);
1194 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1195 VEC_safe_push (tree, gc, d->typenames, mv);
1197 /* Search into class template arguments, which cp_walk_subtrees
1199 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1200 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1206 static VEC(tree,gc) *
1207 find_typenames (tree t)
1209 struct find_typenames_t ft;
1210 ft.p_set = pointer_set_create ();
1211 ft.typenames = NULL;
1212 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1213 find_typenames_r, &ft, ft.p_set);
1214 pointer_set_destroy (ft.p_set);
1215 return ft.typenames;
1218 /* Pretty print a function decl. There are several ways we want to print a
1219 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1220 As error can only apply the '#' flag once to give 0 and 1 for V, there
1221 is %D which doesn't print the throw specs, and %F which does. */
1224 dump_function_decl (tree t, int flags)
1228 tree cname = NULL_TREE;
1229 tree template_args = NULL_TREE;
1230 tree template_parms = NULL_TREE;
1231 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1232 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1234 VEC(tree,gc) *typenames = NULL;
1236 if (LAMBDA_FUNCTION_P (t))
1238 /* A lambda's signature is essentially its "type", so defer. */
1239 gcc_assert (LAMBDA_TYPE_P (DECL_CONTEXT (t)));
1240 dump_type (DECL_CONTEXT (t), flags);
1244 flags &= ~TFF_UNQUALIFIED_NAME;
1245 if (TREE_CODE (t) == TEMPLATE_DECL)
1246 t = DECL_TEMPLATE_RESULT (t);
1248 /* Save the exceptions, in case t is a specialization and we are
1249 emitting an error about incompatible specifications. */
1250 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1252 /* Pretty print template instantiations only. */
1253 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1254 && flag_pretty_templates)
1258 template_args = DECL_TI_ARGS (t);
1259 tmpl = most_general_template (t);
1260 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1262 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1264 typenames = find_typenames (t);
1268 fntype = TREE_TYPE (t);
1269 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1271 if (DECL_CLASS_SCOPE_P (t))
1272 cname = DECL_CONTEXT (t);
1273 /* This is for partially instantiated template methods. */
1274 else if (TREE_CODE (fntype) == METHOD_TYPE)
1275 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1277 if (!(flags & TFF_DECL_SPECIFIERS))
1279 else if (DECL_STATIC_FUNCTION_P (t))
1280 pp_cxx_ws_string (cxx_pp, "static");
1281 else if (DECL_VIRTUAL_P (t))
1282 pp_cxx_ws_string (cxx_pp, "virtual");
1284 /* Print the return type? */
1286 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1287 && !DECL_DESTRUCTOR_P (t);
1289 dump_type_prefix (TREE_TYPE (fntype), flags);
1291 /* Print the function name. */
1292 if (!do_outer_scope)
1296 dump_type (cname, flags);
1297 pp_cxx_colon_colon (cxx_pp);
1300 dump_scope (CP_DECL_CONTEXT (t), flags);
1302 dump_function_name (t, flags);
1304 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1306 dump_parameters (parmtypes, flags);
1308 if (TREE_CODE (fntype) == METHOD_TYPE)
1310 pp_base (cxx_pp)->padding = pp_before;
1311 pp_cxx_cv_qualifier_seq
1312 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1315 if (flags & TFF_EXCEPTION_SPECIFICATION)
1317 pp_base (cxx_pp)->padding = pp_before;
1318 dump_exception_spec (exceptions, flags);
1322 dump_type_suffix (TREE_TYPE (fntype), flags);
1325 /* If T is a template instantiation, dump the parameter binding. */
1326 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1328 pp_cxx_whitespace (cxx_pp);
1329 pp_cxx_left_bracket (cxx_pp);
1330 pp_cxx_ws_string (cxx_pp, M_("with"));
1331 pp_cxx_whitespace (cxx_pp);
1332 dump_template_bindings (template_parms, template_args, typenames);
1333 pp_cxx_right_bracket (cxx_pp);
1337 /* Print a parameter list. If this is for a member function, the
1338 member object ptr (and any other hidden args) should have
1339 already been removed. */
1342 dump_parameters (tree parmtypes, int flags)
1345 pp_cxx_left_paren (cxx_pp);
1347 for (first = 1; parmtypes != void_list_node;
1348 parmtypes = TREE_CHAIN (parmtypes))
1351 pp_separate_with_comma (cxx_pp);
1355 pp_cxx_ws_string (cxx_pp, "...");
1359 dump_type (TREE_VALUE (parmtypes), flags);
1361 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1363 pp_cxx_whitespace (cxx_pp);
1365 pp_cxx_whitespace (cxx_pp);
1366 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1370 pp_cxx_right_paren (cxx_pp);
1373 /* Print an exception specification. T is the exception specification. */
1376 dump_exception_spec (tree t, int flags)
1380 pp_cxx_ws_string (cxx_pp, "throw");
1381 pp_cxx_whitespace (cxx_pp);
1382 pp_cxx_left_paren (cxx_pp);
1383 if (TREE_VALUE (t) != NULL_TREE)
1386 dump_type (TREE_VALUE (t), flags);
1390 pp_separate_with_comma (cxx_pp);
1392 pp_cxx_right_paren (cxx_pp);
1396 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1397 and destructors properly. */
1400 dump_function_name (tree t, int flags)
1402 tree name = DECL_NAME (t);
1404 /* We can get here with a decl that was synthesized by language-
1405 independent machinery (e.g. coverage.c) in which case it won't
1406 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1407 will crash. In this case it is safe just to print out the
1409 if (!DECL_LANG_SPECIFIC (t))
1411 pp_cxx_tree_identifier (cxx_pp, name);
1415 if (TREE_CODE (t) == TEMPLATE_DECL)
1416 t = DECL_TEMPLATE_RESULT (t);
1418 /* Don't let the user see __comp_ctor et al. */
1419 if (DECL_CONSTRUCTOR_P (t)
1420 || DECL_DESTRUCTOR_P (t))
1422 if (LAMBDA_TYPE_P (DECL_CONTEXT (t)))
1423 name = get_identifier ("<lambda>");
1425 name = constructor_name (DECL_CONTEXT (t));
1428 if (DECL_DESTRUCTOR_P (t))
1430 pp_cxx_complement (cxx_pp);
1431 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1433 else if (DECL_CONV_FN_P (t))
1435 /* This cannot use the hack that the operator's return
1436 type is stashed off of its name because it may be
1437 used for error reporting. In the case of conflicting
1438 declarations, both will have the same name, yet
1439 the types will be different, hence the TREE_TYPE field
1440 of the first name will be clobbered by the second. */
1441 pp_cxx_ws_string (cxx_pp, "operator");
1442 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1444 else if (name && IDENTIFIER_OPNAME_P (name))
1445 pp_cxx_tree_identifier (cxx_pp, name);
1447 dump_decl (name, flags);
1449 if (DECL_TEMPLATE_INFO (t)
1450 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1451 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1452 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1453 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1456 /* Dump the template parameters from the template info INFO under control of
1457 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1458 specialization (partial or complete). For partial specializations we show
1459 the specialized parameter values. For a primary template we show no
1463 dump_template_parms (tree info, int primary, int flags)
1465 tree args = info ? TI_ARGS (info) : NULL_TREE;
1467 if (primary && flags & TFF_TEMPLATE_NAME)
1469 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1470 pp_cxx_begin_template_argument_list (cxx_pp);
1472 /* Be careful only to print things when we have them, so as not
1473 to crash producing error messages. */
1474 if (args && !primary)
1477 len = get_non_default_template_args_count (args, flags);
1479 args = INNERMOST_TEMPLATE_ARGS (args);
1480 for (ix = 0; ix != len; ix++)
1482 tree arg = TREE_VEC_ELT (args, ix);
1484 /* Only print a comma if we know there is an argument coming. In
1485 the case of an empty template argument pack, no actual
1486 argument will be printed. */
1488 && (!ARGUMENT_PACK_P (arg)
1489 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1490 pp_separate_with_comma (cxx_pp);
1493 pp_string (cxx_pp, M_("<template parameter error>"));
1495 dump_template_argument (arg, flags);
1500 tree tpl = TI_TEMPLATE (info);
1501 tree parms = DECL_TEMPLATE_PARMS (tpl);
1504 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1505 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1507 for (ix = 0; ix != len; ix++)
1511 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1513 pp_string (cxx_pp, M_("<template parameter error>"));
1517 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1520 pp_separate_with_comma (cxx_pp);
1522 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1525 pp_cxx_end_template_argument_list (cxx_pp);
1528 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1529 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1532 dump_call_expr_args (tree t, int flags, bool skipfirst)
1535 call_expr_arg_iterator iter;
1537 pp_cxx_left_paren (cxx_pp);
1538 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1544 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1545 if (more_call_expr_args_p (&iter))
1546 pp_separate_with_comma (cxx_pp);
1549 pp_cxx_right_paren (cxx_pp);
1552 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1553 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1557 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1560 aggr_init_expr_arg_iterator iter;
1562 pp_cxx_left_paren (cxx_pp);
1563 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1569 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1570 if (more_aggr_init_expr_args_p (&iter))
1571 pp_separate_with_comma (cxx_pp);
1574 pp_cxx_right_paren (cxx_pp);
1577 /* Print out a list of initializers (subr of dump_expr). */
1580 dump_expr_list (tree l, int flags)
1584 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1587 pp_separate_with_comma (cxx_pp);
1591 /* Print out a vector of initializers (subr of dump_expr). */
1594 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1596 unsigned HOST_WIDE_INT idx;
1599 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1601 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1602 if (idx != VEC_length (constructor_elt, v) - 1)
1603 pp_separate_with_comma (cxx_pp);
1608 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1609 function. Resolve it to a close relative -- in the sense of static
1610 type -- variant being overridden. That is close to what was written in
1611 the source code. Subroutine of dump_expr. */
1614 resolve_virtual_fun_from_obj_type_ref (tree ref)
1616 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1617 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1618 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1621 fun = TREE_CHAIN (fun);
1622 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1623 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1629 /* Print out an expression E under control of FLAGS. */
1632 dump_expr (tree t, int flags)
1637 if (STATEMENT_CLASS_P (t))
1639 pp_cxx_ws_string (cxx_pp, M_("<statement>"));
1643 switch (TREE_CODE (t))
1651 case NAMESPACE_DECL:
1654 case IDENTIFIER_NODE:
1655 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1662 pp_constant (cxx_pp, t);
1666 /* While waiting for caret diagnostics, avoid printing
1667 __cxa_allocate_exception, __cxa_throw, and the like. */
1668 pp_cxx_ws_string (cxx_pp, M_("<throw-expression>"));
1672 pp_ampersand (cxx_pp);
1673 dump_type (PTRMEM_CST_CLASS (t), flags);
1674 pp_cxx_colon_colon (cxx_pp);
1675 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1679 pp_cxx_left_paren (cxx_pp);
1680 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1681 pp_separate_with_comma (cxx_pp);
1682 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1683 pp_cxx_right_paren (cxx_pp);
1687 pp_cxx_left_paren (cxx_pp);
1688 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1689 pp_string (cxx_pp, " ? ");
1690 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1691 pp_string (cxx_pp, " : ");
1692 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1693 pp_cxx_right_paren (cxx_pp);
1697 if (TREE_HAS_CONSTRUCTOR (t))
1699 pp_cxx_ws_string (cxx_pp, "new");
1700 pp_cxx_whitespace (cxx_pp);
1701 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1704 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1707 case AGGR_INIT_EXPR:
1709 tree fn = NULL_TREE;
1711 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1712 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1714 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1716 if (DECL_CONSTRUCTOR_P (fn))
1717 dump_type (DECL_CONTEXT (fn), flags);
1722 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1724 dump_aggr_init_expr_args (t, flags, true);
1729 tree fn = CALL_EXPR_FN (t);
1730 bool skipfirst = false;
1732 if (TREE_CODE (fn) == ADDR_EXPR)
1733 fn = TREE_OPERAND (fn, 0);
1735 /* Nobody is interested in seeing the guts of vcalls. */
1736 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1737 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1739 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1741 tree ob = CALL_EXPR_ARG (t, 0);
1742 if (TREE_CODE (ob) == ADDR_EXPR)
1744 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1745 pp_cxx_dot (cxx_pp);
1747 else if (TREE_CODE (ob) != PARM_DECL
1748 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1750 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1751 pp_cxx_arrow (cxx_pp);
1755 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1756 dump_call_expr_args (t, flags, skipfirst);
1761 /* Note that this only works for G++ target exprs. If somebody
1762 builds a general TARGET_EXPR, there's no way to represent that
1763 it initializes anything other that the parameter slot for the
1764 default argument. Note we may have cleared out the first
1765 operand in expand_expr, so don't go killing ourselves. */
1766 if (TREE_OPERAND (t, 1))
1767 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1770 case POINTER_PLUS_EXPR:
1771 dump_binary_op ("+", t, flags);
1779 case TRUNC_DIV_EXPR:
1780 case TRUNC_MOD_EXPR:
1788 case TRUTH_ANDIF_EXPR:
1789 case TRUTH_ORIF_EXPR:
1796 case EXACT_DIV_EXPR:
1797 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1801 case FLOOR_DIV_EXPR:
1802 case ROUND_DIV_EXPR:
1804 dump_binary_op ("/", t, flags);
1808 case FLOOR_MOD_EXPR:
1809 case ROUND_MOD_EXPR:
1810 dump_binary_op ("%", t, flags);
1815 tree ob = TREE_OPERAND (t, 0);
1816 if (TREE_CODE (ob) == INDIRECT_REF)
1818 ob = TREE_OPERAND (ob, 0);
1819 if (TREE_CODE (ob) != PARM_DECL
1821 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1823 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1824 pp_cxx_arrow (cxx_pp);
1829 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1830 pp_cxx_dot (cxx_pp);
1832 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1837 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1838 pp_cxx_left_bracket (cxx_pp);
1839 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1840 pp_cxx_right_bracket (cxx_pp);
1843 case UNARY_PLUS_EXPR:
1844 dump_unary_op ("+", t, flags);
1848 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1849 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1850 /* An ADDR_EXPR can have reference type. In that case, we
1851 shouldn't print the `&' doing so indicates to the user
1852 that the expression has pointer type. */
1854 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1855 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1856 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1857 dump_unary_op ("&&", t, flags);
1859 dump_unary_op ("&", t, flags);
1863 if (TREE_HAS_CONSTRUCTOR (t))
1865 t = TREE_OPERAND (t, 0);
1866 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1867 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1868 dump_call_expr_args (t, flags, true);
1872 if (TREE_OPERAND (t,0) != NULL_TREE
1873 && TREE_TYPE (TREE_OPERAND (t, 0))
1874 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1875 dump_expr (TREE_OPERAND (t, 0), flags);
1877 dump_unary_op ("*", t, flags);
1883 case TRUTH_NOT_EXPR:
1884 case PREDECREMENT_EXPR:
1885 case PREINCREMENT_EXPR:
1886 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1889 case POSTDECREMENT_EXPR:
1890 case POSTINCREMENT_EXPR:
1891 pp_cxx_left_paren (cxx_pp);
1892 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1893 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1894 pp_cxx_right_paren (cxx_pp);
1897 case NON_LVALUE_EXPR:
1898 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1899 should be another level of INDIRECT_REF so that I don't have to do
1901 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1903 tree next = TREE_TYPE (TREE_TYPE (t));
1905 while (TREE_CODE (next) == POINTER_TYPE)
1906 next = TREE_TYPE (next);
1908 if (TREE_CODE (next) == FUNCTION_TYPE)
1910 if (flags & TFF_EXPR_IN_PARENS)
1911 pp_cxx_left_paren (cxx_pp);
1912 pp_cxx_star (cxx_pp);
1913 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1914 if (flags & TFF_EXPR_IN_PARENS)
1915 pp_cxx_right_paren (cxx_pp);
1918 /* Else fall through. */
1920 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1924 case VIEW_CONVERT_EXPR:
1926 tree op = TREE_OPERAND (t, 0);
1928 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1930 /* It is a cast, but we cannot tell whether it is a
1931 reinterpret or static cast. Use the C style notation. */
1932 if (flags & TFF_EXPR_IN_PARENS)
1933 pp_cxx_left_paren (cxx_pp);
1934 pp_cxx_left_paren (cxx_pp);
1935 dump_type (TREE_TYPE (t), flags);
1936 pp_cxx_right_paren (cxx_pp);
1937 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1938 if (flags & TFF_EXPR_IN_PARENS)
1939 pp_cxx_right_paren (cxx_pp);
1942 dump_expr (op, flags);
1947 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1949 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1951 if (integer_zerop (idx))
1953 /* A NULL pointer-to-member constant. */
1954 pp_cxx_left_paren (cxx_pp);
1955 pp_cxx_left_paren (cxx_pp);
1956 dump_type (TREE_TYPE (t), flags);
1957 pp_cxx_right_paren (cxx_pp);
1958 pp_character (cxx_pp, '0');
1959 pp_cxx_right_paren (cxx_pp);
1962 else if (host_integerp (idx, 0))
1965 unsigned HOST_WIDE_INT n;
1967 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1968 t = TYPE_METHOD_BASETYPE (t);
1969 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1971 n = tree_low_cst (idx, 0);
1973 /* Map vtable index back one, to allow for the null pointer to
1977 while (n > 0 && virtuals)
1980 virtuals = TREE_CHAIN (virtuals);
1984 dump_expr (BV_FN (virtuals),
1985 flags | TFF_EXPR_IN_PARENS);
1990 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
1992 dump_type (TREE_TYPE (t), 0);
1993 pp_cxx_left_paren (cxx_pp);
1994 pp_cxx_right_paren (cxx_pp);
1998 pp_cxx_left_brace (cxx_pp);
1999 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
2000 pp_cxx_right_brace (cxx_pp);
2007 tree ob = TREE_OPERAND (t, 0);
2008 if (is_dummy_object (ob))
2010 t = TREE_OPERAND (t, 1);
2011 if (TREE_CODE (t) == FUNCTION_DECL)
2013 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
2014 else if (BASELINK_P (t))
2015 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
2016 flags | TFF_EXPR_IN_PARENS);
2018 dump_decl (t, flags);
2022 if (TREE_CODE (ob) == INDIRECT_REF)
2024 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
2025 pp_cxx_arrow (cxx_pp);
2026 pp_cxx_star (cxx_pp);
2030 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2031 pp_cxx_dot (cxx_pp);
2032 pp_cxx_star (cxx_pp);
2034 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2039 case TEMPLATE_PARM_INDEX:
2040 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2044 if (TREE_OPERAND (t, 0) == NULL_TREE
2045 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2047 dump_type (TREE_TYPE (t), flags);
2048 pp_cxx_left_paren (cxx_pp);
2049 dump_expr_list (TREE_OPERAND (t, 0), flags);
2050 pp_cxx_right_paren (cxx_pp);
2054 pp_cxx_left_paren (cxx_pp);
2055 dump_type (TREE_TYPE (t), flags);
2056 pp_cxx_right_paren (cxx_pp);
2057 pp_cxx_left_paren (cxx_pp);
2058 dump_expr_list (TREE_OPERAND (t, 0), flags);
2059 pp_cxx_right_paren (cxx_pp);
2063 case STATIC_CAST_EXPR:
2064 pp_cxx_ws_string (cxx_pp, "static_cast");
2066 case REINTERPRET_CAST_EXPR:
2067 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2069 case CONST_CAST_EXPR:
2070 pp_cxx_ws_string (cxx_pp, "const_cast");
2072 case DYNAMIC_CAST_EXPR:
2073 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2075 pp_cxx_begin_template_argument_list (cxx_pp);
2076 dump_type (TREE_TYPE (t), flags);
2077 pp_cxx_end_template_argument_list (cxx_pp);
2078 pp_cxx_left_paren (cxx_pp);
2079 dump_expr (TREE_OPERAND (t, 0), flags);
2080 pp_cxx_right_paren (cxx_pp);
2084 dump_expr (TREE_OPERAND (t, 0), flags);
2085 pp_cxx_arrow (cxx_pp);
2090 if (TREE_CODE (t) == SIZEOF_EXPR)
2091 pp_cxx_ws_string (cxx_pp, "sizeof");
2094 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2095 pp_cxx_ws_string (cxx_pp, "__alignof__");
2097 pp_cxx_whitespace (cxx_pp);
2098 pp_cxx_left_paren (cxx_pp);
2099 if (TYPE_P (TREE_OPERAND (t, 0)))
2100 dump_type (TREE_OPERAND (t, 0), flags);
2102 dump_expr (TREE_OPERAND (t, 0), flags);
2103 pp_cxx_right_paren (cxx_pp);
2108 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2109 pp_cxx_whitespace (cxx_pp);
2110 dump_expr (TREE_OPERAND (t, 0), flags);
2114 pp_string (cxx_pp, M_("<unparsed>"));
2117 case TRY_CATCH_EXPR:
2118 case WITH_CLEANUP_EXPR:
2119 case CLEANUP_POINT_EXPR:
2120 dump_expr (TREE_OPERAND (t, 0), flags);
2123 case PSEUDO_DTOR_EXPR:
2124 dump_expr (TREE_OPERAND (t, 2), flags);
2125 pp_cxx_dot (cxx_pp);
2126 dump_type (TREE_OPERAND (t, 0), flags);
2127 pp_cxx_colon_colon (cxx_pp);
2128 pp_cxx_complement (cxx_pp);
2129 dump_type (TREE_OPERAND (t, 1), flags);
2132 case TEMPLATE_ID_EXPR:
2133 dump_decl (t, flags);
2139 case STATEMENT_LIST:
2140 /* We don't yet have a way of dumping statements in a
2141 human-readable format. */
2142 pp_string (cxx_pp, "({...})");
2146 pp_string (cxx_pp, "while (1) { ");
2147 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2148 pp_cxx_right_brace (cxx_pp);
2152 pp_string (cxx_pp, "if (");
2153 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2154 pp_string (cxx_pp, ") break; ");
2158 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2161 case EMPTY_CLASS_EXPR:
2162 dump_type (TREE_TYPE (t), flags);
2163 pp_cxx_left_paren (cxx_pp);
2164 pp_cxx_right_paren (cxx_pp);
2167 case NON_DEPENDENT_EXPR:
2168 dump_expr (TREE_OPERAND (t, 0), flags);
2171 case ARGUMENT_PACK_SELECT:
2172 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2184 pp_type_specifier_seq (cxx_pp, t);
2188 /* We get here when we want to print a dependent type as an
2189 id-expression, without any disambiguator decoration. */
2190 pp_id_expression (cxx_pp, t);
2193 case TEMPLATE_TYPE_PARM:
2194 case BOUND_TEMPLATE_TEMPLATE_PARM:
2195 dump_type (t, flags);
2199 pp_cxx_trait_expression (cxx_pp, t);
2203 pp_cxx_va_arg_expression (cxx_pp, t);
2207 pp_cxx_offsetof_expression (cxx_pp, t);
2211 dump_decl (t, flags);
2214 case EXPR_PACK_EXPANSION:
2221 case VEC_DELETE_EXPR:
2227 case UNORDERED_EXPR:
2237 case FIX_TRUNC_EXPR:
2239 pp_expression (cxx_pp, t);
2242 case TRUTH_AND_EXPR:
2244 case TRUTH_XOR_EXPR:
2245 if (flags & TFF_EXPR_IN_PARENS)
2246 pp_cxx_left_paren (cxx_pp);
2247 pp_expression (cxx_pp, t);
2248 if (flags & TFF_EXPR_IN_PARENS)
2249 pp_cxx_right_paren (cxx_pp);
2253 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2256 /* This list is incomplete, but should suffice for now.
2257 It is very important that `sorry' does not call
2258 `report_error_function'. That could cause an infinite loop. */
2260 pp_unsupported_tree (cxx_pp, t);
2261 /* fall through to ERROR_MARK... */
2263 pp_string (cxx_pp, M_("<expression error>"));
2269 dump_binary_op (const char *opstring, tree t, int flags)
2271 pp_cxx_left_paren (cxx_pp);
2272 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2273 pp_cxx_whitespace (cxx_pp);
2275 pp_cxx_ws_string (cxx_pp, opstring);
2277 pp_string (cxx_pp, M_("<unknown operator>"));
2278 pp_cxx_whitespace (cxx_pp);
2279 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2280 pp_cxx_right_paren (cxx_pp);
2284 dump_unary_op (const char *opstring, tree t, int flags)
2286 if (flags & TFF_EXPR_IN_PARENS)
2287 pp_cxx_left_paren (cxx_pp);
2288 pp_cxx_ws_string (cxx_pp, opstring);
2289 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2290 if (flags & TFF_EXPR_IN_PARENS)
2291 pp_cxx_right_paren (cxx_pp);
2295 reinit_cxx_pp (void)
2297 pp_clear_output_area (cxx_pp);
2298 pp_base (cxx_pp)->padding = pp_none;
2299 pp_indentation (cxx_pp) = 0;
2300 pp_needs_newline (cxx_pp) = false;
2301 cxx_pp->enclosing_scope = current_function_decl;
2305 /* Exported interface to stringifying types, exprs and decls under TFF_*
2309 type_as_string (tree typ, int flags)
2312 pp_translate_identifiers (cxx_pp) = false;
2313 dump_type (typ, flags);
2314 return pp_formatted_text (cxx_pp);
2318 type_as_string_translate (tree typ, int flags)
2321 dump_type (typ, flags);
2322 return pp_formatted_text (cxx_pp);
2326 expr_as_string (tree decl, int flags)
2329 pp_translate_identifiers (cxx_pp) = false;
2330 dump_expr (decl, flags);
2331 return pp_formatted_text (cxx_pp);
2335 decl_as_string (tree decl, int flags)
2338 pp_translate_identifiers (cxx_pp) = false;
2339 dump_decl (decl, flags);
2340 return pp_formatted_text (cxx_pp);
2344 decl_as_string_translate (tree decl, int flags)
2347 dump_decl (decl, flags);
2348 return pp_formatted_text (cxx_pp);
2351 /* Generate the three forms of printable names for cxx_printable_name. */
2354 lang_decl_name (tree decl, int v, bool translate)
2358 ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
2359 : decl_as_string (decl, TFF_DECL_SPECIFIERS));
2362 pp_translate_identifiers (cxx_pp) = translate;
2364 && (DECL_CLASS_SCOPE_P (decl)
2365 || (DECL_NAMESPACE_SCOPE_P (decl)
2366 && CP_DECL_CONTEXT (decl) != global_namespace)))
2368 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2369 pp_cxx_colon_colon (cxx_pp);
2372 if (TREE_CODE (decl) == FUNCTION_DECL)
2373 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2375 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2377 return pp_formatted_text (cxx_pp);
2380 /* Return the location of a tree passed to %+ formats. */
2383 location_of (tree t)
2385 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2386 t = DECL_CONTEXT (t);
2387 else if (TYPE_P (t))
2388 t = TYPE_MAIN_DECL (t);
2389 else if (TREE_CODE (t) == OVERLOAD)
2390 t = OVL_FUNCTION (t);
2392 return DECL_SOURCE_LOCATION (t);
2395 /* Now the interfaces from error et al to dump_type et al. Each takes an
2396 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2400 decl_to_string (tree decl, int verbose)
2404 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2405 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2406 flags = TFF_CLASS_KEY_OR_ENUM;
2408 flags |= TFF_DECL_SPECIFIERS;
2409 else if (TREE_CODE (decl) == FUNCTION_DECL)
2410 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2411 flags |= TFF_TEMPLATE_HEADER;
2414 dump_decl (decl, flags);
2415 return pp_formatted_text (cxx_pp);
2419 expr_to_string (tree decl)
2422 dump_expr (decl, 0);
2423 return pp_formatted_text (cxx_pp);
2427 fndecl_to_string (tree fndecl, int verbose)
2431 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2432 | TFF_TEMPLATE_HEADER;
2434 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2436 dump_decl (fndecl, flags);
2437 return pp_formatted_text (cxx_pp);
2442 code_to_string (enum tree_code c)
2444 return tree_code_name [c];
2448 language_to_string (enum languages c)
2455 case lang_cplusplus:
2467 /* Return the proper printed version of a parameter to a C++ function. */
2470 parm_to_string (int p)
2474 pp_string (cxx_pp, "'this'");
2476 pp_decimal_int (cxx_pp, p + 1);
2477 return pp_formatted_text (cxx_pp);
2481 op_to_string (enum tree_code p)
2483 tree id = operator_name_info[(int) p].identifier;
2484 return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
2488 type_to_string (tree typ, int verbose)
2492 flags |= TFF_CLASS_KEY_OR_ENUM;
2493 flags |= TFF_TEMPLATE_HEADER;
2496 dump_type (typ, flags);
2497 return pp_formatted_text (cxx_pp);
2501 assop_to_string (enum tree_code p)
2503 tree id = assignment_operator_name_info[(int) p].identifier;
2504 return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
2508 args_to_string (tree p, int verbose)
2512 flags |= TFF_CLASS_KEY_OR_ENUM;
2517 if (TYPE_P (TREE_VALUE (p)))
2518 return type_as_string_translate (p, flags);
2521 for (; p; p = TREE_CHAIN (p))
2523 if (TREE_VALUE (p) == null_node)
2524 pp_cxx_ws_string (cxx_pp, "NULL");
2526 dump_type (error_type (TREE_VALUE (p)), flags);
2528 pp_separate_with_comma (cxx_pp);
2530 return pp_formatted_text (cxx_pp);
2534 cv_to_string (tree p, int v)
2537 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2538 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2539 return pp_formatted_text (cxx_pp);
2542 /* Langhook for print_error_function. */
2544 cxx_print_error_function (diagnostic_context *context, const char *file,
2545 diagnostic_info *diagnostic)
2547 lhd_print_error_function (context, file, diagnostic);
2548 pp_base_set_prefix (context->printer, file);
2549 maybe_print_instantiation_context (context);
2553 cp_diagnostic_starter (diagnostic_context *context,
2554 diagnostic_info *diagnostic)
2556 diagnostic_report_current_module (context);
2557 cp_print_error_function (context, diagnostic);
2558 maybe_print_instantiation_context (context);
2559 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2563 cp_diagnostic_finalizer (diagnostic_context *context,
2564 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2566 pp_base_destroy_prefix (context->printer);
2569 /* Print current function onto BUFFER, in the process of reporting
2570 a diagnostic message. Called from cp_diagnostic_starter. */
2572 cp_print_error_function (diagnostic_context *context,
2573 diagnostic_info *diagnostic)
2575 if (diagnostic_last_function_changed (context, diagnostic))
2577 const char *old_prefix = context->printer->prefix;
2578 const char *file = LOCATION_FILE (diagnostic->location);
2579 tree abstract_origin = diagnostic_abstract_origin (diagnostic);
2580 char *new_prefix = (file && abstract_origin == NULL)
2581 ? file_name_as_prefix (file) : NULL;
2583 pp_base_set_prefix (context->printer, new_prefix);
2585 if (current_function_decl == NULL)
2586 pp_base_string (context->printer, _("At global scope:"));
2591 if (abstract_origin)
2593 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2594 while (TREE_CODE (ao) == BLOCK
2595 && BLOCK_ABSTRACT_ORIGIN (ao)
2596 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2597 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2598 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2602 fndecl = current_function_decl;
2604 pp_printf (context->printer, function_category (fndecl),
2605 cxx_printable_name_translate (fndecl, 2));
2607 while (abstract_origin)
2610 tree block = abstract_origin;
2612 locus = &BLOCK_SOURCE_LOCATION (block);
2614 block = BLOCK_SUPERCONTEXT (block);
2615 while (block && TREE_CODE (block) == BLOCK
2616 && BLOCK_ABSTRACT_ORIGIN (block))
2618 ao = BLOCK_ABSTRACT_ORIGIN (block);
2620 while (TREE_CODE (ao) == BLOCK
2621 && BLOCK_ABSTRACT_ORIGIN (ao)
2622 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2623 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2625 if (TREE_CODE (ao) == FUNCTION_DECL)
2630 else if (TREE_CODE (ao) != BLOCK)
2633 block = BLOCK_SUPERCONTEXT (block);
2636 abstract_origin = block;
2639 while (block && TREE_CODE (block) == BLOCK)
2640 block = BLOCK_SUPERCONTEXT (block);
2642 if (block && TREE_CODE (block) == FUNCTION_DECL)
2644 abstract_origin = NULL;
2648 expanded_location s = expand_location (*locus);
2649 pp_base_character (context->printer, ',');
2650 pp_base_newline (context->printer);
2653 if (flag_show_column && s.column != 0)
2654 pp_printf (context->printer,
2655 _(" inlined from %qs at %s:%d:%d"),
2656 cxx_printable_name_translate (fndecl, 2),
2657 s.file, s.line, s.column);
2659 pp_printf (context->printer,
2660 _(" inlined from %qs at %s:%d"),
2661 cxx_printable_name_translate (fndecl, 2),
2666 pp_printf (context->printer, _(" inlined from %qs"),
2667 cxx_printable_name_translate (fndecl, 2));
2670 pp_base_character (context->printer, ':');
2672 pp_base_newline (context->printer);
2674 diagnostic_set_last_function (context, diagnostic);
2675 pp_base_destroy_prefix (context->printer);
2676 context->printer->prefix = old_prefix;
2680 /* Returns a description of FUNCTION using standard terminology. The
2681 result is a format string of the form "In CATEGORY %qs". */
2683 function_category (tree fn)
2685 /* We can get called from the middle-end for diagnostics of function
2686 clones. Make sure we have language specific information before
2687 dereferencing it. */
2688 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn))
2689 && DECL_FUNCTION_MEMBER_P (fn))
2691 if (DECL_STATIC_FUNCTION_P (fn))
2692 return _("In static member function %qs");
2693 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2694 return _("In copy constructor %qs");
2695 else if (DECL_CONSTRUCTOR_P (fn))
2696 return _("In constructor %qs");
2697 else if (DECL_DESTRUCTOR_P (fn))
2698 return _("In destructor %qs");
2699 else if (LAMBDA_FUNCTION_P (fn))
2700 return _("In lambda function");
2702 return _("In member function %qs");
2705 return _("In function %qs");
2708 /* Report the full context of a current template instantiation,
2711 print_instantiation_full_context (diagnostic_context *context)
2713 struct tinst_level *p = current_instantiation ();
2714 location_t location = input_location;
2718 if (current_function_decl != p->decl
2719 && current_function_decl != NULL_TREE)
2720 /* We can get here during the processing of some synthesized
2721 method. Then, P->DECL will be the function that's causing
2726 if (current_function_decl == p->decl)
2727 /* Avoid redundancy with the "In function" line. */;
2729 pp_verbatim (context->printer,
2730 _("%s: In instantiation of %qs:\n"),
2731 LOCATION_FILE (location),
2732 decl_as_string_translate (p->decl,
2733 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2735 location = p->locus;
2740 print_instantiation_partial_context (context, p, location);
2743 /* Helper function of print_instantiation_partial_context() that
2744 prints a single line of instantiation context. */
2747 print_instantiation_partial_context_line (diagnostic_context *context,
2748 const struct tinst_level *t,
2749 location_t loc, bool recursive_p)
2751 expanded_location xloc;
2752 xloc = expand_location (loc);
2757 str = decl_as_string_translate (t->decl,
2758 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE);
2759 if (flag_show_column)
2760 pp_verbatim (context->printer,
2762 ? _("%s:%d:%d: recursively instantiated from %qs\n")
2763 : _("%s:%d:%d: instantiated from %qs\n"),
2764 xloc.file, xloc.line, xloc.column, str);
2766 pp_verbatim (context->printer,
2768 ? _("%s:%d: recursively instantiated from %qs\n")
2769 : _("%s:%d: recursively instantiated from %qs\n"),
2770 xloc.file, xloc.line, str);
2774 if (flag_show_column)
2775 pp_verbatim (context->printer,
2777 ? _("%s:%d:%d: recursively instantiated from here")
2778 : _("%s:%d:%d: instantiated from here"),
2779 xloc.file, xloc.line, xloc.column);
2781 pp_verbatim (context->printer,
2783 ? _("%s:%d: recursively instantiated from here")
2784 : _("%s:%d: instantiated from here"),
2785 xloc.file, xloc.line);
2789 /* Same as print_instantiation_full_context but less verbose. */
2792 print_instantiation_partial_context (diagnostic_context *context,
2793 struct tinst_level *t0, location_t loc)
2795 struct tinst_level *t;
2798 location_t prev_loc = loc;
2800 for (t = t0; t != NULL; t = t->next)
2801 if (prev_loc != t->locus)
2803 prev_loc = t->locus;
2811 int skip = n_total - 10;
2812 for (n = 0; n < 5; n++)
2814 gcc_assert (t != NULL);
2815 if (loc != t->locus)
2816 print_instantiation_partial_context_line (context, t, loc,
2817 /*recursive_p=*/false);
2821 if (t != NULL && skip > 1)
2823 expanded_location xloc;
2824 xloc = expand_location (loc);
2825 if (flag_show_column)
2826 pp_verbatim (context->printer,
2827 _("%s:%d:%d: [ skipping %d instantiation contexts ]\n"),
2828 xloc.file, xloc.line, xloc.column, skip);
2830 pp_verbatim (context->printer,
2831 _("%s:%d: [ skipping %d instantiation contexts ]\n"),
2832 xloc.file, xloc.line, skip);
2837 } while (t != NULL && --skip > 0);
2843 while (t->next != NULL && t->locus == t->next->locus)
2848 print_instantiation_partial_context_line (context, t, loc,
2853 print_instantiation_partial_context_line (context, NULL, loc,
2854 /*recursive_p=*/false);
2855 pp_base_newline (context->printer);
2858 /* Called from cp_thing to print the template context for an error. */
2860 maybe_print_instantiation_context (diagnostic_context *context)
2862 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2865 record_last_problematic_instantiation ();
2866 print_instantiation_full_context (context);
2869 /* Report the bare minimum context of a template instantiation. */
2871 print_instantiation_context (void)
2873 print_instantiation_partial_context
2874 (global_dc, current_instantiation (), input_location);
2875 diagnostic_flush_buffer (global_dc);
2878 /* Called from output_format -- during diagnostic message processing --
2879 to handle C++ specific format specifier with the following meanings:
2880 %A function argument-list.
2884 %F function declaration.
2885 %L language as used in extern "lang".
2887 %P function parameter whose position is indicated by an integer.
2888 %Q assignment operator.
2892 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
2893 int precision, bool wide, bool set_locus, bool verbose)
2897 #define next_tree (t = va_arg (*text->args_ptr, tree))
2898 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
2899 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
2900 #define next_int va_arg (*text->args_ptr, int)
2902 if (precision != 0 || wide)
2905 if (text->locus == NULL)
2910 case 'A': result = args_to_string (next_tree, verbose); break;
2911 case 'C': result = code_to_string (next_tcode); break;
2914 tree temp = next_tree;
2916 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
2918 temp = DECL_DEBUG_EXPR (temp);
2921 result = expr_to_string (temp);
2925 result = decl_to_string (temp, verbose);
2928 case 'E': result = expr_to_string (next_tree); break;
2929 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2930 case 'L': result = language_to_string (next_lang); break;
2931 case 'O': result = op_to_string (next_tcode); break;
2932 case 'P': result = parm_to_string (next_int); break;
2933 case 'Q': result = assop_to_string (next_tcode); break;
2934 case 'T': result = type_to_string (next_tree, verbose); break;
2935 case 'V': result = cv_to_string (next_tree, verbose); break;
2938 percent_K_format (text);
2945 pp_base_string (pp, result);
2946 if (set_locus && t != NULL)
2947 *text->locus = location_of (t);
2955 /* Warn about the use of C++0x features when appropriate. */
2957 maybe_warn_cpp0x (cpp0x_warn_str str)
2959 if ((cxx_dialect == cxx98) && !in_system_header)
2960 /* We really want to suppress this warning in system headers,
2961 because libstdc++ uses variadic templates even when we aren't
2965 case CPP0X_INITIALIZER_LISTS:
2966 pedwarn (input_location, 0,
2967 "extended initializer lists "
2968 "only available with -std=c++0x or -std=gnu++0x");
2970 case CPP0X_EXPLICIT_CONVERSION:
2971 pedwarn (input_location, 0,
2972 "explicit conversion operators "
2973 "only available with -std=c++0x or -std=gnu++0x");
2975 case CPP0X_VARIADIC_TEMPLATES:
2976 pedwarn (input_location, 0,
2977 "variadic templates "
2978 "only available with -std=c++0x or -std=gnu++0x");
2980 case CPP0X_LAMBDA_EXPR:
2981 pedwarn (input_location, 0,
2982 "lambda expressions "
2983 "only available with -std=c++0x or -std=gnu++0x");
2986 pedwarn (input_location, 0,
2987 "C++0x auto only available with -std=c++0x or -std=gnu++0x");
2989 case CPP0X_SCOPED_ENUMS:
2990 pedwarn (input_location, 0,
2991 "scoped enums only available with -std=c++0x or -std=gnu++0x");
2993 case CPP0X_DEFAULTED_DELETED:
2994 pedwarn (input_location, 0,
2995 "defaulted and deleted functions "
2996 "only available with -std=c++0x or -std=gnu++0x");
3003 /* Warn about the use of variadic templates when appropriate. */
3005 maybe_warn_variadic_templates (void)
3007 maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES);
3011 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
3012 option OPT with text GMSGID. Use this function to report
3013 diagnostics for constructs that are invalid C++98, but valid
3016 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
3018 diagnostic_info diagnostic;
3021 va_start (ap, gmsgid);
3022 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
3023 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
3024 diagnostic.option_index = opt;
3026 return report_diagnostic (&diagnostic);