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 = 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_EACH_VEC_ELT (tree, typenames, i, t)
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 /* Don't print e.g. "struct mytypedef". */
333 if (TYPE_P (t) && typedef_variant_p (t))
335 tree decl = TYPE_NAME (t);
336 if ((flags & TFF_CHASE_TYPEDEF)
337 || DECL_SELF_REFERENCE_P (decl)
338 || (!flag_pretty_templates
339 && DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl)))
340 t = strip_typedefs (t);
341 else if (same_type_p (t, TREE_TYPE (decl)))
345 pp_cxx_cv_qualifier_seq (cxx_pp, t);
346 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
351 if (TYPE_PTRMEMFUNC_P (t))
354 switch (TREE_CODE (t))
357 if (t == init_list_type_node)
358 pp_string (cxx_pp, M_("<brace-enclosed initializer list>"));
359 else if (t == unknown_type_node)
360 pp_string (cxx_pp, M_("<unresolved overloaded function type>"));
363 pp_cxx_cv_qualifier_seq (cxx_pp, t);
364 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
369 /* A list of function parms. */
370 dump_parameters (t, flags);
373 case IDENTIFIER_NODE:
374 pp_cxx_tree_identifier (cxx_pp, t);
378 dump_type (BINFO_TYPE (t), flags);
384 dump_aggr_type (t, flags);
388 if (flags & TFF_CHASE_TYPEDEF)
390 dump_type (DECL_ORIGINAL_TYPE (t)
391 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
394 /* Else fall through. */
398 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
407 case FIXED_POINT_TYPE:
408 pp_type_specifier_seq (cxx_pp, t);
411 case TEMPLATE_TEMPLATE_PARM:
412 /* For parameters inside template signature. */
413 if (TYPE_IDENTIFIER (t))
414 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
416 pp_cxx_canonical_template_parameter (cxx_pp, t);
419 case BOUND_TEMPLATE_TEMPLATE_PARM:
421 tree args = TYPE_TI_ARGS (t);
422 pp_cxx_cv_qualifier_seq (cxx_pp, t);
423 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
424 pp_cxx_begin_template_argument_list (cxx_pp);
425 dump_template_argument_list (args, flags);
426 pp_cxx_end_template_argument_list (cxx_pp);
430 case TEMPLATE_TYPE_PARM:
431 pp_cxx_cv_qualifier_seq (cxx_pp, t);
432 if (TYPE_IDENTIFIER (t))
433 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
435 pp_cxx_canonical_template_parameter
436 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
439 /* This is not always necessary for pointers and such, but doing this
440 reduces code size. */
449 dump_type_prefix (t, flags);
450 dump_type_suffix (t, flags);
454 if (! (flags & TFF_CHASE_TYPEDEF)
455 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
457 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
460 pp_cxx_cv_qualifier_seq (cxx_pp, t);
461 pp_cxx_ws_string (cxx_pp,
462 TYPENAME_IS_ENUM_P (t) ? "enum"
463 : TYPENAME_IS_CLASS_P (t) ? "class"
465 dump_typename (t, flags);
468 case UNBOUND_CLASS_TEMPLATE:
469 if (! (flags & TFF_UNQUALIFIED_NAME))
471 dump_type (TYPE_CONTEXT (t), flags);
472 pp_cxx_colon_colon (cxx_pp);
474 pp_cxx_ws_string (cxx_pp, "template");
475 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
479 pp_cxx_ws_string (cxx_pp, "__typeof__");
480 pp_cxx_whitespace (cxx_pp);
481 pp_cxx_left_paren (cxx_pp);
482 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
483 pp_cxx_right_paren (cxx_pp);
486 case TYPE_PACK_EXPANSION:
487 dump_type (PACK_EXPANSION_PATTERN (t), flags);
488 pp_cxx_ws_string (cxx_pp, "...");
491 case TYPE_ARGUMENT_PACK:
492 dump_template_argument (t, flags);
496 pp_cxx_ws_string (cxx_pp, "decltype");
497 pp_cxx_whitespace (cxx_pp);
498 pp_cxx_left_paren (cxx_pp);
499 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
500 pp_cxx_right_paren (cxx_pp);
504 pp_string (cxx_pp, "std::nullptr_t");
508 pp_unsupported_tree (cxx_pp, t);
509 /* Fall through to error. */
512 pp_string (cxx_pp, M_("<type error>"));
517 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
521 dump_typename (tree t, int flags)
523 tree ctx = TYPE_CONTEXT (t);
525 if (TREE_CODE (ctx) == TYPENAME_TYPE)
526 dump_typename (ctx, flags);
528 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
529 pp_cxx_colon_colon (cxx_pp);
530 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
533 /* Return the name of the supplied aggregate, or enumeral type. */
536 class_key_or_enum_as_string (tree t)
538 if (TREE_CODE (t) == ENUMERAL_TYPE)
540 if (SCOPED_ENUM_P (t))
545 else if (TREE_CODE (t) == UNION_TYPE)
547 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
553 /* Print out a class declaration T under the control of FLAGS,
554 in the form `class foo'. */
557 dump_aggr_type (tree t, int flags)
560 const char *variety = class_key_or_enum_as_string (t);
564 pp_cxx_cv_qualifier_seq (cxx_pp, t);
566 if (flags & TFF_CLASS_KEY_OR_ENUM)
567 pp_cxx_ws_string (cxx_pp, variety);
569 name = TYPE_NAME (t);
573 typdef = !DECL_ARTIFICIAL (name);
576 && ((flags & TFF_CHASE_TYPEDEF)
577 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
578 && DECL_TEMPLATE_INFO (name))))
579 || DECL_SELF_REFERENCE_P (name))
581 t = TYPE_MAIN_VARIANT (t);
582 name = TYPE_NAME (t);
586 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
587 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
588 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
589 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
591 if (! (flags & TFF_UNQUALIFIED_NAME))
592 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
593 flags &= ~TFF_UNQUALIFIED_NAME;
596 /* Because the template names are mangled, we have to locate
597 the most general template, and use that name. */
598 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
600 while (DECL_TEMPLATE_INFO (tpl))
601 tpl = DECL_TI_TEMPLATE (tpl);
604 name = DECL_NAME (name);
607 if (name == 0 || ANON_AGGRNAME_P (name))
609 if (flags & TFF_CLASS_KEY_OR_ENUM)
610 pp_string (cxx_pp, M_("<anonymous>"));
612 pp_printf (pp_base (cxx_pp), M_("<anonymous %s>"), variety);
614 else if (LAMBDANAME_P (name))
616 /* A lambda's "type" is essentially its signature. */
617 pp_string (cxx_pp, M_("<lambda"));
618 if (lambda_function (t))
619 dump_parameters (FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t)),
621 pp_character(cxx_pp, '>');
624 pp_cxx_tree_identifier (cxx_pp, name);
626 dump_template_parms (TYPE_TEMPLATE_INFO (t),
627 !CLASSTYPE_USE_TEMPLATE (t),
628 flags & ~TFF_TEMPLATE_HEADER);
631 /* Dump into the obstack the initial part of the output for a given type.
632 This is necessary when dealing with things like functions returning
635 return type of `int (* fee ())()': pointer -> function -> int. Both
636 pointer (and reference and offset) and function (and member) types must
637 deal with prefix and suffix.
639 Arrays must also do this for DECL nodes, like int a[], and for things like
643 dump_type_prefix (tree t, int flags)
645 if (TYPE_PTRMEMFUNC_P (t))
647 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
651 switch (TREE_CODE (t))
656 tree sub = TREE_TYPE (t);
658 dump_type_prefix (sub, flags);
659 if (TREE_CODE (sub) == ARRAY_TYPE
660 || TREE_CODE (sub) == FUNCTION_TYPE)
662 pp_cxx_whitespace (cxx_pp);
663 pp_cxx_left_paren (cxx_pp);
665 if (TREE_CODE (t) == POINTER_TYPE)
666 pp_character(cxx_pp, '*');
667 else if (TREE_CODE (t) == REFERENCE_TYPE)
669 if (TYPE_REF_IS_RVALUE (t))
670 pp_string (cxx_pp, "&&");
672 pp_character (cxx_pp, '&');
674 pp_base (cxx_pp)->padding = pp_before;
675 pp_cxx_cv_qualifier_seq (cxx_pp, t);
681 dump_type_prefix (TREE_TYPE (t), flags);
682 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
684 pp_maybe_space (cxx_pp);
685 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
686 pp_cxx_left_paren (cxx_pp);
687 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
688 pp_cxx_colon_colon (cxx_pp);
690 pp_cxx_star (cxx_pp);
691 pp_cxx_cv_qualifier_seq (cxx_pp, t);
692 pp_base (cxx_pp)->padding = pp_before;
695 /* This can be reached without a pointer when dealing with
696 templates, e.g. std::is_function. */
698 dump_type_prefix (TREE_TYPE (t), flags);
702 dump_type_prefix (TREE_TYPE (t), flags);
703 pp_maybe_space (cxx_pp);
704 pp_cxx_left_paren (cxx_pp);
705 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
706 pp_cxx_colon_colon (cxx_pp);
710 dump_type_prefix (TREE_TYPE (t), flags);
714 case IDENTIFIER_NODE:
719 case TEMPLATE_TYPE_PARM:
720 case TEMPLATE_TEMPLATE_PARM:
721 case BOUND_TEMPLATE_TEMPLATE_PARM:
733 case TYPE_PACK_EXPANSION:
734 case FIXED_POINT_TYPE:
736 dump_type (t, flags);
737 pp_base (cxx_pp)->padding = pp_before;
741 pp_unsupported_tree (cxx_pp, t);
744 pp_string (cxx_pp, M_("<typeprefixerror>"));
749 /* Dump the suffix of type T, under control of FLAGS. This is the part
750 which appears after the identifier (or function parms). */
753 dump_type_suffix (tree t, int flags)
755 if (TYPE_PTRMEMFUNC_P (t))
756 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
758 switch (TREE_CODE (t))
763 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
764 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
765 pp_cxx_right_paren (cxx_pp);
766 dump_type_suffix (TREE_TYPE (t), flags);
773 if (TREE_CODE (t) == METHOD_TYPE)
774 /* Can only be reached through a pointer. */
775 pp_cxx_right_paren (cxx_pp);
776 arg = TYPE_ARG_TYPES (t);
777 if (TREE_CODE (t) == METHOD_TYPE)
778 arg = TREE_CHAIN (arg);
780 /* Function pointers don't have default args. Not in standard C++,
781 anyway; they may in g++, but we'll just pretend otherwise. */
782 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
784 if (TREE_CODE (t) == METHOD_TYPE)
785 pp_cxx_cv_qualifier_seq
786 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
788 pp_cxx_cv_qualifier_seq (cxx_pp, t);
789 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
790 dump_type_suffix (TREE_TYPE (t), flags);
795 pp_maybe_space (cxx_pp);
796 pp_cxx_left_bracket (cxx_pp);
799 tree dtype = TYPE_DOMAIN (t);
800 tree max = TYPE_MAX_VALUE (dtype);
801 if (host_integerp (max, 0))
802 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
803 else if (TREE_CODE (max) == MINUS_EXPR)
804 dump_expr (TREE_OPERAND (max, 0),
805 flags & ~TFF_EXPR_IN_PARENS);
807 dump_expr (fold_build2_loc (input_location,
808 PLUS_EXPR, dtype, max,
809 build_int_cst (dtype, 1)),
810 flags & ~TFF_EXPR_IN_PARENS);
812 pp_cxx_right_bracket (cxx_pp);
813 dump_type_suffix (TREE_TYPE (t), flags);
817 case IDENTIFIER_NODE:
822 case TEMPLATE_TYPE_PARM:
823 case TEMPLATE_TEMPLATE_PARM:
824 case BOUND_TEMPLATE_TEMPLATE_PARM:
836 case TYPE_PACK_EXPANSION:
837 case FIXED_POINT_TYPE:
842 pp_unsupported_tree (cxx_pp, t);
844 /* Don't mark it here, we should have already done in
851 dump_global_iord (tree t)
853 const char *p = NULL;
855 if (DECL_GLOBAL_CTOR_P (t))
856 p = M_("(static initializers for %s)");
857 else if (DECL_GLOBAL_DTOR_P (t))
858 p = M_("(static destructors for %s)");
862 pp_printf (pp_base (cxx_pp), p, input_filename);
866 dump_simple_decl (tree t, tree type, int flags)
868 if (flags & TFF_DECL_SPECIFIERS)
870 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
871 pp_maybe_space (cxx_pp);
873 if (! (flags & TFF_UNQUALIFIED_NAME)
874 && TREE_CODE (t) != PARM_DECL
875 && (!DECL_INITIAL (t)
876 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
877 dump_scope (CP_DECL_CONTEXT (t), flags);
878 flags &= ~TFF_UNQUALIFIED_NAME;
879 if ((flags & TFF_DECL_SPECIFIERS)
880 && DECL_TEMPLATE_PARM_P (t)
881 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
882 pp_string (cxx_pp, "...");
884 dump_decl (DECL_NAME (t), flags);
886 pp_string (cxx_pp, M_("<anonymous>"));
887 if (flags & TFF_DECL_SPECIFIERS)
888 dump_type_suffix (type, flags);
891 /* Dump a human readable string for the decl T under control of FLAGS. */
894 dump_decl (tree t, int flags)
899 /* If doing Objective-C++, give Objective-C a chance to demangle
900 Objective-C method names. */
901 if (c_dialect_objc ())
903 const char *demangled = objc_maybe_printable_name (t, flags);
906 pp_string (cxx_pp, demangled);
911 switch (TREE_CODE (t))
914 /* Don't say 'typedef class A' */
915 if (DECL_ARTIFICIAL (t) && !DECL_SELF_REFERENCE_P (t))
917 if ((flags & TFF_DECL_SPECIFIERS)
918 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
920 /* Say `class T' not just `T'. */
921 pp_cxx_ws_string (cxx_pp, "class");
923 /* Emit the `...' for a parameter pack. */
924 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
925 pp_cxx_ws_string (cxx_pp, "...");
928 dump_type (TREE_TYPE (t), flags);
931 if ((flags & TFF_DECL_SPECIFIERS)
932 && !DECL_SELF_REFERENCE_P (t))
933 pp_cxx_ws_string (cxx_pp, "typedef");
934 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
935 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
940 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
942 pp_string (cxx_pp, M_("vtable for "));
943 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
944 dump_type (DECL_CONTEXT (t), flags);
947 /* Else fall through. */
950 dump_simple_decl (t, TREE_TYPE (t), flags);
954 pp_string (cxx_pp, M_("<return value> "));
955 dump_simple_decl (t, TREE_TYPE (t), flags);
959 if (flags & TFF_DECL_SPECIFIERS)
960 pp_cxx_declaration (cxx_pp, t);
963 if (! (flags & TFF_UNQUALIFIED_NAME))
964 dump_scope (CP_DECL_CONTEXT (t), flags);
965 flags &= ~TFF_UNQUALIFIED_NAME;
966 if (DECL_NAME (t) == NULL_TREE)
967 pp_cxx_ws_string (cxx_pp, M_("{anonymous}"));
969 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
974 dump_type (TREE_OPERAND (t, 0), flags);
975 pp_string (cxx_pp, "::");
976 dump_decl (TREE_OPERAND (t, 1), flags|TFF_UNQUALIFIED_NAME);
980 dump_decl (TREE_OPERAND (t, 0), flags);
981 pp_cxx_left_bracket (cxx_pp);
982 dump_decl (TREE_OPERAND (t, 1), flags);
983 pp_cxx_right_bracket (cxx_pp);
986 /* So that we can do dump_decl on an aggr type. */
990 dump_type (t, flags);
994 /* This is a pseudo destructor call which has not been folded into
995 a PSEUDO_DTOR_EXPR yet. */
996 pp_cxx_complement (cxx_pp);
997 dump_type (TREE_OPERAND (t, 0), flags);
1004 /* These special cases are duplicated here so that other functions
1005 can feed identifiers to error and get them demangled properly. */
1006 case IDENTIFIER_NODE:
1007 if (IDENTIFIER_TYPENAME_P (t))
1009 pp_cxx_ws_string (cxx_pp, "operator");
1010 /* Not exactly IDENTIFIER_TYPE_VALUE. */
1011 dump_type (TREE_TYPE (t), flags);
1015 pp_cxx_tree_identifier (cxx_pp, t);
1021 t = OVL_CURRENT (t);
1022 if (DECL_CLASS_SCOPE_P (t))
1024 dump_type (DECL_CONTEXT (t), flags);
1025 pp_cxx_colon_colon (cxx_pp);
1027 else if (DECL_CONTEXT (t))
1029 dump_decl (DECL_CONTEXT (t), flags);
1030 pp_cxx_colon_colon (cxx_pp);
1032 dump_decl (DECL_NAME (t), flags);
1036 /* If there's only one function, just treat it like an ordinary
1038 t = OVL_CURRENT (t);
1042 if (! DECL_LANG_SPECIFIC (t))
1043 pp_string (cxx_pp, M_("<built-in>"));
1044 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
1045 dump_global_iord (t);
1047 dump_function_decl (t, flags);
1051 dump_template_decl (t, flags);
1054 case TEMPLATE_ID_EXPR:
1056 tree name = TREE_OPERAND (t, 0);
1058 if (is_overloaded_fn (name))
1059 name = DECL_NAME (get_first_fn (name));
1060 dump_decl (name, flags);
1061 pp_cxx_begin_template_argument_list (cxx_pp);
1062 if (TREE_OPERAND (t, 1))
1063 dump_template_argument_list (TREE_OPERAND (t, 1), flags);
1064 pp_cxx_end_template_argument_list (cxx_pp);
1069 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1073 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1074 || (DECL_INITIAL (t) &&
1075 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1076 dump_simple_decl (t, TREE_TYPE (t), flags);
1077 else if (DECL_NAME (t))
1078 dump_decl (DECL_NAME (t), flags);
1079 else if (DECL_INITIAL (t))
1080 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1082 pp_string (cxx_pp, M_("<enumerator>"));
1086 pp_cxx_ws_string (cxx_pp, "using");
1087 dump_type (USING_DECL_SCOPE (t), flags);
1088 pp_cxx_colon_colon (cxx_pp);
1089 dump_decl (DECL_NAME (t), flags);
1093 pp_cxx_declaration (cxx_pp, t);
1097 dump_decl (BASELINK_FUNCTIONS (t), flags);
1100 case NON_DEPENDENT_EXPR:
1101 dump_expr (t, flags);
1104 case TEMPLATE_TYPE_PARM:
1105 if (flags & TFF_DECL_SPECIFIERS)
1106 pp_cxx_declaration (cxx_pp, t);
1108 pp_type_id (cxx_pp, t);
1111 case UNBOUND_CLASS_TEMPLATE:
1112 case TYPE_PACK_EXPANSION:
1114 dump_type (t, flags);
1118 pp_unsupported_tree (cxx_pp, t);
1119 /* Fall through to error. */
1122 pp_string (cxx_pp, M_("<declaration error>"));
1127 /* Dump a template declaration T under control of FLAGS. This means the
1128 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1131 dump_template_decl (tree t, int flags)
1133 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1137 if (flags & TFF_TEMPLATE_HEADER)
1139 for (parms = orig_parms = nreverse (orig_parms);
1141 parms = TREE_CHAIN (parms))
1143 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1144 int len = TREE_VEC_LENGTH (inner_parms);
1146 pp_cxx_ws_string (cxx_pp, "template");
1147 pp_cxx_begin_template_argument_list (cxx_pp);
1149 /* If we've shown the template prefix, we'd better show the
1150 parameters' and decl's type too. */
1151 flags |= TFF_DECL_SPECIFIERS;
1153 for (i = 0; i < len; i++)
1156 pp_separate_with_comma (cxx_pp);
1157 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1159 pp_cxx_end_template_argument_list (cxx_pp);
1160 pp_cxx_whitespace (cxx_pp);
1162 nreverse(orig_parms);
1164 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1166 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1167 pp_cxx_ws_string (cxx_pp, "class");
1169 /* If this is a parameter pack, print the ellipsis. */
1170 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1171 pp_cxx_ws_string (cxx_pp, "...");
1175 if (DECL_TEMPLATE_RESULT (t)
1176 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1177 dump_type (TREE_TYPE (t),
1178 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1179 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1180 else if (DECL_TEMPLATE_RESULT (t)
1181 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1182 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1185 gcc_assert (TREE_TYPE (t));
1186 switch (NEXT_CODE (t))
1190 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1193 /* This case can occur with some invalid code. */
1194 dump_type (TREE_TYPE (t),
1195 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1196 | (flags & TFF_DECL_SPECIFIERS
1197 ? TFF_CLASS_KEY_OR_ENUM : 0));
1202 /* find_typenames looks through the type of the function template T
1203 and returns a VEC containing any typedefs, decltypes or TYPENAME_TYPEs
1206 struct find_typenames_t
1208 struct pointer_set_t *p_set;
1209 VEC (tree,gc) *typenames;
1213 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1215 struct find_typenames_t *d = (struct find_typenames_t *)data;
1216 tree mv = NULL_TREE;
1218 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1219 /* Add the type of the typedef without any additional cv-quals. */
1220 mv = TREE_TYPE (TYPE_NAME (*tp));
1221 else if (TREE_CODE (*tp) == TYPENAME_TYPE
1222 || TREE_CODE (*tp) == DECLTYPE_TYPE)
1223 /* Add the typename without any cv-qualifiers. */
1224 mv = TYPE_MAIN_VARIANT (*tp);
1226 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1227 VEC_safe_push (tree, gc, d->typenames, mv);
1229 /* Search into class template arguments, which cp_walk_subtrees
1231 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1232 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1238 static VEC(tree,gc) *
1239 find_typenames (tree t)
1241 struct find_typenames_t ft;
1242 ft.p_set = pointer_set_create ();
1243 ft.typenames = NULL;
1244 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1245 find_typenames_r, &ft, ft.p_set);
1246 pointer_set_destroy (ft.p_set);
1247 return ft.typenames;
1250 /* Pretty print a function decl. There are several ways we want to print a
1251 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1252 As error can only apply the '#' flag once to give 0 and 1 for V, there
1253 is %D which doesn't print the throw specs, and %F which does. */
1256 dump_function_decl (tree t, int flags)
1260 tree cname = NULL_TREE;
1261 tree template_args = NULL_TREE;
1262 tree template_parms = NULL_TREE;
1263 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1264 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1266 VEC(tree,gc) *typenames = NULL;
1268 if (DECL_NAME (t) && LAMBDA_FUNCTION_P (t))
1270 /* A lambda's signature is essentially its "type", so defer. */
1271 gcc_assert (LAMBDA_TYPE_P (DECL_CONTEXT (t)));
1272 dump_type (DECL_CONTEXT (t), flags);
1276 flags &= ~TFF_UNQUALIFIED_NAME;
1277 if (TREE_CODE (t) == TEMPLATE_DECL)
1278 t = DECL_TEMPLATE_RESULT (t);
1280 /* Save the exceptions, in case t is a specialization and we are
1281 emitting an error about incompatible specifications. */
1282 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1284 /* Pretty print template instantiations only. */
1285 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1286 && flag_pretty_templates)
1290 template_args = DECL_TI_ARGS (t);
1291 tmpl = most_general_template (t);
1292 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1294 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1296 typenames = find_typenames (t);
1300 fntype = TREE_TYPE (t);
1301 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1303 if (DECL_CLASS_SCOPE_P (t))
1304 cname = DECL_CONTEXT (t);
1305 /* This is for partially instantiated template methods. */
1306 else if (TREE_CODE (fntype) == METHOD_TYPE)
1307 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1309 if (!(flags & TFF_DECL_SPECIFIERS))
1311 else if (DECL_STATIC_FUNCTION_P (t))
1312 pp_cxx_ws_string (cxx_pp, "static");
1313 else if (DECL_VIRTUAL_P (t))
1314 pp_cxx_ws_string (cxx_pp, "virtual");
1316 /* Print the return type? */
1318 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1319 && !DECL_DESTRUCTOR_P (t);
1321 dump_type_prefix (TREE_TYPE (fntype), flags);
1323 /* Print the function name. */
1324 if (!do_outer_scope)
1328 dump_type (cname, flags);
1329 pp_cxx_colon_colon (cxx_pp);
1332 dump_scope (CP_DECL_CONTEXT (t), flags);
1334 dump_function_name (t, flags);
1336 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1338 dump_parameters (parmtypes, flags);
1340 if (TREE_CODE (fntype) == METHOD_TYPE)
1342 pp_base (cxx_pp)->padding = pp_before;
1343 pp_cxx_cv_qualifier_seq
1344 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1347 if (flags & TFF_EXCEPTION_SPECIFICATION)
1349 pp_base (cxx_pp)->padding = pp_before;
1350 dump_exception_spec (exceptions, flags);
1354 dump_type_suffix (TREE_TYPE (fntype), flags);
1357 /* If T is a template instantiation, dump the parameter binding. */
1358 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1360 pp_cxx_whitespace (cxx_pp);
1361 pp_cxx_left_bracket (cxx_pp);
1362 pp_cxx_ws_string (cxx_pp, M_("with"));
1363 pp_cxx_whitespace (cxx_pp);
1364 dump_template_bindings (template_parms, template_args, typenames);
1365 pp_cxx_right_bracket (cxx_pp);
1369 /* Print a parameter list. If this is for a member function, the
1370 member object ptr (and any other hidden args) should have
1371 already been removed. */
1374 dump_parameters (tree parmtypes, int flags)
1377 flags &= ~TFF_SCOPE;
1378 pp_cxx_left_paren (cxx_pp);
1380 for (first = 1; parmtypes != void_list_node;
1381 parmtypes = TREE_CHAIN (parmtypes))
1384 pp_separate_with_comma (cxx_pp);
1388 pp_cxx_ws_string (cxx_pp, "...");
1392 dump_type (TREE_VALUE (parmtypes), flags);
1394 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1396 pp_cxx_whitespace (cxx_pp);
1398 pp_cxx_whitespace (cxx_pp);
1399 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1403 pp_cxx_right_paren (cxx_pp);
1406 /* Print an exception specification. T is the exception specification. */
1409 dump_exception_spec (tree t, int flags)
1411 if (t && TREE_PURPOSE (t))
1413 pp_cxx_ws_string (cxx_pp, "noexcept");
1414 pp_cxx_whitespace (cxx_pp);
1415 pp_cxx_left_paren (cxx_pp);
1416 dump_expr (TREE_PURPOSE (t), flags);
1417 pp_cxx_right_paren (cxx_pp);
1421 pp_cxx_ws_string (cxx_pp, "throw");
1422 pp_cxx_whitespace (cxx_pp);
1423 pp_cxx_left_paren (cxx_pp);
1424 if (TREE_VALUE (t) != NULL_TREE)
1427 dump_type (TREE_VALUE (t), flags);
1431 pp_separate_with_comma (cxx_pp);
1433 pp_cxx_right_paren (cxx_pp);
1437 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1438 and destructors properly. */
1441 dump_function_name (tree t, int flags)
1443 tree name = DECL_NAME (t);
1445 /* We can get here with a decl that was synthesized by language-
1446 independent machinery (e.g. coverage.c) in which case it won't
1447 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1448 will crash. In this case it is safe just to print out the
1450 if (!DECL_LANG_SPECIFIC (t))
1452 pp_cxx_tree_identifier (cxx_pp, name);
1456 if (TREE_CODE (t) == TEMPLATE_DECL)
1457 t = DECL_TEMPLATE_RESULT (t);
1459 /* Don't let the user see __comp_ctor et al. */
1460 if (DECL_CONSTRUCTOR_P (t)
1461 || DECL_DESTRUCTOR_P (t))
1463 if (LAMBDA_TYPE_P (DECL_CONTEXT (t)))
1464 name = get_identifier ("<lambda>");
1466 name = constructor_name (DECL_CONTEXT (t));
1469 if (DECL_DESTRUCTOR_P (t))
1471 pp_cxx_complement (cxx_pp);
1472 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1474 else if (DECL_CONV_FN_P (t))
1476 /* This cannot use the hack that the operator's return
1477 type is stashed off of its name because it may be
1478 used for error reporting. In the case of conflicting
1479 declarations, both will have the same name, yet
1480 the types will be different, hence the TREE_TYPE field
1481 of the first name will be clobbered by the second. */
1482 pp_cxx_ws_string (cxx_pp, "operator");
1483 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1485 else if (name && IDENTIFIER_OPNAME_P (name))
1486 pp_cxx_tree_identifier (cxx_pp, name);
1488 dump_decl (name, flags);
1490 if (DECL_TEMPLATE_INFO (t)
1491 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1492 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1493 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1494 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1497 /* Dump the template parameters from the template info INFO under control of
1498 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1499 specialization (partial or complete). For partial specializations we show
1500 the specialized parameter values. For a primary template we show no
1504 dump_template_parms (tree info, int primary, int flags)
1506 tree args = info ? TI_ARGS (info) : NULL_TREE;
1508 if (primary && flags & TFF_TEMPLATE_NAME)
1510 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1511 pp_cxx_begin_template_argument_list (cxx_pp);
1513 /* Be careful only to print things when we have them, so as not
1514 to crash producing error messages. */
1515 if (args && !primary)
1518 len = get_non_default_template_args_count (args, flags);
1520 args = INNERMOST_TEMPLATE_ARGS (args);
1521 for (ix = 0; ix != len; ix++)
1523 tree arg = TREE_VEC_ELT (args, ix);
1525 /* Only print a comma if we know there is an argument coming. In
1526 the case of an empty template argument pack, no actual
1527 argument will be printed. */
1529 && (!ARGUMENT_PACK_P (arg)
1530 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1531 pp_separate_with_comma (cxx_pp);
1534 pp_string (cxx_pp, M_("<template parameter error>"));
1536 dump_template_argument (arg, flags);
1541 tree tpl = TI_TEMPLATE (info);
1542 tree parms = DECL_TEMPLATE_PARMS (tpl);
1545 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1546 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1548 for (ix = 0; ix != len; ix++)
1552 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1554 pp_string (cxx_pp, M_("<template parameter error>"));
1558 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1561 pp_separate_with_comma (cxx_pp);
1563 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1566 pp_cxx_end_template_argument_list (cxx_pp);
1569 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1570 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1573 dump_call_expr_args (tree t, int flags, bool skipfirst)
1576 call_expr_arg_iterator iter;
1578 pp_cxx_left_paren (cxx_pp);
1579 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1585 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1586 if (more_call_expr_args_p (&iter))
1587 pp_separate_with_comma (cxx_pp);
1590 pp_cxx_right_paren (cxx_pp);
1593 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1594 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1598 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1601 aggr_init_expr_arg_iterator iter;
1603 pp_cxx_left_paren (cxx_pp);
1604 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1610 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1611 if (more_aggr_init_expr_args_p (&iter))
1612 pp_separate_with_comma (cxx_pp);
1615 pp_cxx_right_paren (cxx_pp);
1618 /* Print out a list of initializers (subr of dump_expr). */
1621 dump_expr_list (tree l, int flags)
1625 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1628 pp_separate_with_comma (cxx_pp);
1632 /* Print out a vector of initializers (subr of dump_expr). */
1635 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1637 unsigned HOST_WIDE_INT idx;
1640 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1642 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1643 if (idx != VEC_length (constructor_elt, v) - 1)
1644 pp_separate_with_comma (cxx_pp);
1649 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1650 function. Resolve it to a close relative -- in the sense of static
1651 type -- variant being overridden. That is close to what was written in
1652 the source code. Subroutine of dump_expr. */
1655 resolve_virtual_fun_from_obj_type_ref (tree ref)
1657 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1658 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1659 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1662 fun = TREE_CHAIN (fun);
1663 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1664 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1670 /* Print out an expression E under control of FLAGS. */
1673 dump_expr (tree t, int flags)
1678 if (STATEMENT_CLASS_P (t))
1680 pp_cxx_ws_string (cxx_pp, M_("<statement>"));
1684 switch (TREE_CODE (t))
1692 case NAMESPACE_DECL:
1695 case IDENTIFIER_NODE:
1696 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1703 pp_constant (cxx_pp, t);
1707 /* While waiting for caret diagnostics, avoid printing
1708 __cxa_allocate_exception, __cxa_throw, and the like. */
1709 pp_cxx_ws_string (cxx_pp, M_("<throw-expression>"));
1713 pp_ampersand (cxx_pp);
1714 dump_type (PTRMEM_CST_CLASS (t), flags);
1715 pp_cxx_colon_colon (cxx_pp);
1716 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1720 pp_cxx_left_paren (cxx_pp);
1721 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1722 pp_separate_with_comma (cxx_pp);
1723 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1724 pp_cxx_right_paren (cxx_pp);
1728 pp_cxx_left_paren (cxx_pp);
1729 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1730 pp_string (cxx_pp, " ? ");
1731 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1732 pp_string (cxx_pp, " : ");
1733 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1734 pp_cxx_right_paren (cxx_pp);
1738 if (TREE_HAS_CONSTRUCTOR (t))
1740 pp_cxx_ws_string (cxx_pp, "new");
1741 pp_cxx_whitespace (cxx_pp);
1742 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1745 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1748 case AGGR_INIT_EXPR:
1750 tree fn = NULL_TREE;
1752 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1753 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1755 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1757 if (DECL_CONSTRUCTOR_P (fn))
1758 dump_type (DECL_CONTEXT (fn), flags);
1763 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1765 dump_aggr_init_expr_args (t, flags, true);
1770 tree fn = CALL_EXPR_FN (t);
1771 bool skipfirst = false;
1773 if (TREE_CODE (fn) == ADDR_EXPR)
1774 fn = TREE_OPERAND (fn, 0);
1776 /* Nobody is interested in seeing the guts of vcalls. */
1777 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1778 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1780 if (TREE_TYPE (fn) != NULL_TREE
1781 && NEXT_CODE (fn) == METHOD_TYPE
1782 && call_expr_nargs (t))
1784 tree ob = CALL_EXPR_ARG (t, 0);
1785 if (TREE_CODE (ob) == ADDR_EXPR)
1787 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1788 pp_cxx_dot (cxx_pp);
1790 else if (TREE_CODE (ob) != PARM_DECL
1791 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1793 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1794 pp_cxx_arrow (cxx_pp);
1798 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1799 dump_call_expr_args (t, flags, skipfirst);
1804 /* Note that this only works for G++ target exprs. If somebody
1805 builds a general TARGET_EXPR, there's no way to represent that
1806 it initializes anything other that the parameter slot for the
1807 default argument. Note we may have cleared out the first
1808 operand in expand_expr, so don't go killing ourselves. */
1809 if (TREE_OPERAND (t, 1))
1810 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1813 case POINTER_PLUS_EXPR:
1814 dump_binary_op ("+", t, flags);
1822 case TRUNC_DIV_EXPR:
1823 case TRUNC_MOD_EXPR:
1831 case TRUTH_ANDIF_EXPR:
1832 case TRUTH_ORIF_EXPR:
1839 case EXACT_DIV_EXPR:
1840 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1844 case FLOOR_DIV_EXPR:
1845 case ROUND_DIV_EXPR:
1847 dump_binary_op ("/", t, flags);
1851 case FLOOR_MOD_EXPR:
1852 case ROUND_MOD_EXPR:
1853 dump_binary_op ("%", t, flags);
1858 tree ob = TREE_OPERAND (t, 0);
1859 if (TREE_CODE (ob) == INDIRECT_REF)
1861 ob = TREE_OPERAND (ob, 0);
1862 if (TREE_CODE (ob) != PARM_DECL
1864 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1866 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1867 pp_cxx_arrow (cxx_pp);
1872 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1873 pp_cxx_dot (cxx_pp);
1875 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1880 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1881 pp_cxx_left_bracket (cxx_pp);
1882 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1883 pp_cxx_right_bracket (cxx_pp);
1886 case UNARY_PLUS_EXPR:
1887 dump_unary_op ("+", t, flags);
1891 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1892 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1893 /* An ADDR_EXPR can have reference type. In that case, we
1894 shouldn't print the `&' doing so indicates to the user
1895 that the expression has pointer type. */
1897 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1898 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1899 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1900 dump_unary_op ("&&", t, flags);
1902 dump_unary_op ("&", t, flags);
1906 if (TREE_HAS_CONSTRUCTOR (t))
1908 t = TREE_OPERAND (t, 0);
1909 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1910 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1911 dump_call_expr_args (t, flags, true);
1915 if (TREE_OPERAND (t,0) != NULL_TREE
1916 && TREE_TYPE (TREE_OPERAND (t, 0))
1917 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1918 dump_expr (TREE_OPERAND (t, 0), flags);
1920 dump_unary_op ("*", t, flags);
1926 case TRUTH_NOT_EXPR:
1927 case PREDECREMENT_EXPR:
1928 case PREINCREMENT_EXPR:
1929 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1932 case POSTDECREMENT_EXPR:
1933 case POSTINCREMENT_EXPR:
1934 pp_cxx_left_paren (cxx_pp);
1935 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1936 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1937 pp_cxx_right_paren (cxx_pp);
1940 case NON_LVALUE_EXPR:
1941 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1942 should be another level of INDIRECT_REF so that I don't have to do
1944 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1946 tree next = TREE_TYPE (TREE_TYPE (t));
1948 while (TREE_CODE (next) == POINTER_TYPE)
1949 next = TREE_TYPE (next);
1951 if (TREE_CODE (next) == FUNCTION_TYPE)
1953 if (flags & TFF_EXPR_IN_PARENS)
1954 pp_cxx_left_paren (cxx_pp);
1955 pp_cxx_star (cxx_pp);
1956 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1957 if (flags & TFF_EXPR_IN_PARENS)
1958 pp_cxx_right_paren (cxx_pp);
1961 /* Else fall through. */
1963 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1967 case VIEW_CONVERT_EXPR:
1969 tree op = TREE_OPERAND (t, 0);
1970 tree ttype = TREE_TYPE (t);
1971 tree optype = TREE_TYPE (op);
1973 if (TREE_CODE (ttype) != TREE_CODE (optype)
1974 && POINTER_TYPE_P (ttype)
1975 && POINTER_TYPE_P (optype)
1976 && same_type_p (TREE_TYPE (optype),
1979 if (TREE_CODE (ttype) == REFERENCE_TYPE)
1980 dump_unary_op ("*", t, flags);
1982 dump_unary_op ("&", t, flags);
1984 else if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1986 /* It is a cast, but we cannot tell whether it is a
1987 reinterpret or static cast. Use the C style notation. */
1988 if (flags & TFF_EXPR_IN_PARENS)
1989 pp_cxx_left_paren (cxx_pp);
1990 pp_cxx_left_paren (cxx_pp);
1991 dump_type (TREE_TYPE (t), flags);
1992 pp_cxx_right_paren (cxx_pp);
1993 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1994 if (flags & TFF_EXPR_IN_PARENS)
1995 pp_cxx_right_paren (cxx_pp);
1998 dump_expr (op, flags);
2003 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
2005 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
2007 if (integer_zerop (idx))
2009 /* A NULL pointer-to-member constant. */
2010 pp_cxx_left_paren (cxx_pp);
2011 pp_cxx_left_paren (cxx_pp);
2012 dump_type (TREE_TYPE (t), flags);
2013 pp_cxx_right_paren (cxx_pp);
2014 pp_character (cxx_pp, '0');
2015 pp_cxx_right_paren (cxx_pp);
2018 else if (host_integerp (idx, 0))
2021 unsigned HOST_WIDE_INT n;
2023 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
2024 t = TYPE_METHOD_BASETYPE (t);
2025 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
2027 n = tree_low_cst (idx, 0);
2029 /* Map vtable index back one, to allow for the null pointer to
2033 while (n > 0 && virtuals)
2036 virtuals = TREE_CHAIN (virtuals);
2040 dump_expr (BV_FN (virtuals),
2041 flags | TFF_EXPR_IN_PARENS);
2046 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
2048 dump_type (TREE_TYPE (t), 0);
2049 pp_cxx_left_paren (cxx_pp);
2050 pp_cxx_right_paren (cxx_pp);
2054 pp_cxx_left_brace (cxx_pp);
2055 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
2056 pp_cxx_right_brace (cxx_pp);
2063 tree ob = TREE_OPERAND (t, 0);
2064 if (is_dummy_object (ob))
2066 t = TREE_OPERAND (t, 1);
2067 if (TREE_CODE (t) == FUNCTION_DECL)
2069 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
2070 else if (BASELINK_P (t))
2071 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
2072 flags | TFF_EXPR_IN_PARENS);
2074 dump_decl (t, flags);
2078 if (TREE_CODE (ob) == INDIRECT_REF)
2080 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
2081 pp_cxx_arrow (cxx_pp);
2082 pp_cxx_star (cxx_pp);
2086 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2087 pp_cxx_dot (cxx_pp);
2088 pp_cxx_star (cxx_pp);
2090 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2095 case TEMPLATE_PARM_INDEX:
2096 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2100 if (TREE_OPERAND (t, 0) == NULL_TREE
2101 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2103 dump_type (TREE_TYPE (t), flags);
2104 pp_cxx_left_paren (cxx_pp);
2105 dump_expr_list (TREE_OPERAND (t, 0), flags);
2106 pp_cxx_right_paren (cxx_pp);
2110 pp_cxx_left_paren (cxx_pp);
2111 dump_type (TREE_TYPE (t), flags);
2112 pp_cxx_right_paren (cxx_pp);
2113 pp_cxx_left_paren (cxx_pp);
2114 dump_expr_list (TREE_OPERAND (t, 0), flags);
2115 pp_cxx_right_paren (cxx_pp);
2119 case STATIC_CAST_EXPR:
2120 pp_cxx_ws_string (cxx_pp, "static_cast");
2122 case REINTERPRET_CAST_EXPR:
2123 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2125 case CONST_CAST_EXPR:
2126 pp_cxx_ws_string (cxx_pp, "const_cast");
2128 case DYNAMIC_CAST_EXPR:
2129 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2131 pp_cxx_begin_template_argument_list (cxx_pp);
2132 dump_type (TREE_TYPE (t), flags);
2133 pp_cxx_end_template_argument_list (cxx_pp);
2134 pp_cxx_left_paren (cxx_pp);
2135 dump_expr (TREE_OPERAND (t, 0), flags);
2136 pp_cxx_right_paren (cxx_pp);
2140 dump_expr (TREE_OPERAND (t, 0), flags);
2141 pp_cxx_arrow (cxx_pp);
2146 if (TREE_CODE (t) == SIZEOF_EXPR)
2147 pp_cxx_ws_string (cxx_pp, "sizeof");
2150 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2151 pp_cxx_ws_string (cxx_pp, "__alignof__");
2153 pp_cxx_whitespace (cxx_pp);
2154 pp_cxx_left_paren (cxx_pp);
2155 if (TYPE_P (TREE_OPERAND (t, 0)))
2156 dump_type (TREE_OPERAND (t, 0), flags);
2158 dump_expr (TREE_OPERAND (t, 0), flags);
2159 pp_cxx_right_paren (cxx_pp);
2162 case AT_ENCODE_EXPR:
2163 pp_cxx_ws_string (cxx_pp, "@encode");
2164 pp_cxx_whitespace (cxx_pp);
2165 pp_cxx_left_paren (cxx_pp);
2166 dump_type (TREE_OPERAND (t, 0), flags);
2167 pp_cxx_right_paren (cxx_pp);
2171 pp_cxx_ws_string (cxx_pp, "noexcept");
2172 pp_cxx_whitespace (cxx_pp);
2173 pp_cxx_left_paren (cxx_pp);
2174 dump_expr (TREE_OPERAND (t, 0), flags);
2175 pp_cxx_right_paren (cxx_pp);
2180 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2181 pp_cxx_whitespace (cxx_pp);
2182 dump_expr (TREE_OPERAND (t, 0), flags);
2186 pp_string (cxx_pp, M_("<unparsed>"));
2189 case TRY_CATCH_EXPR:
2190 case WITH_CLEANUP_EXPR:
2191 case CLEANUP_POINT_EXPR:
2192 dump_expr (TREE_OPERAND (t, 0), flags);
2195 case PSEUDO_DTOR_EXPR:
2196 dump_expr (TREE_OPERAND (t, 2), flags);
2197 pp_cxx_dot (cxx_pp);
2198 dump_type (TREE_OPERAND (t, 0), flags);
2199 pp_cxx_colon_colon (cxx_pp);
2200 pp_cxx_complement (cxx_pp);
2201 dump_type (TREE_OPERAND (t, 1), flags);
2204 case TEMPLATE_ID_EXPR:
2205 dump_decl (t, flags);
2211 case STATEMENT_LIST:
2212 /* We don't yet have a way of dumping statements in a
2213 human-readable format. */
2214 pp_string (cxx_pp, "({...})");
2218 pp_string (cxx_pp, "while (1) { ");
2219 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2220 pp_cxx_right_brace (cxx_pp);
2224 pp_string (cxx_pp, "if (");
2225 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2226 pp_string (cxx_pp, ") break; ");
2230 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2233 case EMPTY_CLASS_EXPR:
2234 dump_type (TREE_TYPE (t), flags);
2235 pp_cxx_left_paren (cxx_pp);
2236 pp_cxx_right_paren (cxx_pp);
2239 case NON_DEPENDENT_EXPR:
2240 dump_expr (TREE_OPERAND (t, 0), flags);
2243 case ARGUMENT_PACK_SELECT:
2244 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2256 pp_type_specifier_seq (cxx_pp, t);
2260 /* We get here when we want to print a dependent type as an
2261 id-expression, without any disambiguator decoration. */
2262 pp_id_expression (cxx_pp, t);
2265 case TEMPLATE_TYPE_PARM:
2266 case BOUND_TEMPLATE_TEMPLATE_PARM:
2267 dump_type (t, flags);
2271 pp_cxx_trait_expression (cxx_pp, t);
2275 pp_cxx_va_arg_expression (cxx_pp, t);
2279 pp_cxx_offsetof_expression (cxx_pp, t);
2283 dump_decl (t, flags);
2286 case EXPR_PACK_EXPANSION:
2293 case VEC_DELETE_EXPR:
2299 case UNORDERED_EXPR:
2309 case FIX_TRUNC_EXPR:
2311 pp_expression (cxx_pp, t);
2314 case TRUTH_AND_EXPR:
2316 case TRUTH_XOR_EXPR:
2317 if (flags & TFF_EXPR_IN_PARENS)
2318 pp_cxx_left_paren (cxx_pp);
2319 pp_expression (cxx_pp, t);
2320 if (flags & TFF_EXPR_IN_PARENS)
2321 pp_cxx_right_paren (cxx_pp);
2325 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2328 /* This list is incomplete, but should suffice for now.
2329 It is very important that `sorry' does not call
2330 `report_error_function'. That could cause an infinite loop. */
2332 pp_unsupported_tree (cxx_pp, t);
2333 /* fall through to ERROR_MARK... */
2335 pp_string (cxx_pp, M_("<expression error>"));
2341 dump_binary_op (const char *opstring, tree t, int flags)
2343 pp_cxx_left_paren (cxx_pp);
2344 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2345 pp_cxx_whitespace (cxx_pp);
2347 pp_cxx_ws_string (cxx_pp, opstring);
2349 pp_string (cxx_pp, M_("<unknown operator>"));
2350 pp_cxx_whitespace (cxx_pp);
2351 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2352 pp_cxx_right_paren (cxx_pp);
2356 dump_unary_op (const char *opstring, tree t, int flags)
2358 if (flags & TFF_EXPR_IN_PARENS)
2359 pp_cxx_left_paren (cxx_pp);
2360 pp_cxx_ws_string (cxx_pp, opstring);
2361 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2362 if (flags & TFF_EXPR_IN_PARENS)
2363 pp_cxx_right_paren (cxx_pp);
2367 reinit_cxx_pp (void)
2369 pp_clear_output_area (cxx_pp);
2370 pp_base (cxx_pp)->padding = pp_none;
2371 pp_indentation (cxx_pp) = 0;
2372 pp_needs_newline (cxx_pp) = false;
2373 cxx_pp->enclosing_scope = current_function_decl;
2377 /* Exported interface to stringifying types, exprs and decls under TFF_*
2381 type_as_string (tree typ, int flags)
2384 pp_translate_identifiers (cxx_pp) = false;
2385 dump_type (typ, flags);
2386 return pp_formatted_text (cxx_pp);
2390 type_as_string_translate (tree typ, int flags)
2393 dump_type (typ, flags);
2394 return pp_formatted_text (cxx_pp);
2398 expr_as_string (tree decl, int flags)
2401 pp_translate_identifiers (cxx_pp) = false;
2402 dump_expr (decl, flags);
2403 return pp_formatted_text (cxx_pp);
2407 decl_as_string (tree decl, int flags)
2410 pp_translate_identifiers (cxx_pp) = false;
2411 dump_decl (decl, flags);
2412 return pp_formatted_text (cxx_pp);
2416 decl_as_string_translate (tree decl, int flags)
2419 dump_decl (decl, flags);
2420 return pp_formatted_text (cxx_pp);
2423 /* Generate the three forms of printable names for cxx_printable_name. */
2426 lang_decl_name (tree decl, int v, bool translate)
2430 ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
2431 : decl_as_string (decl, TFF_DECL_SPECIFIERS));
2434 pp_translate_identifiers (cxx_pp) = translate;
2436 && (DECL_CLASS_SCOPE_P (decl)
2437 || (DECL_NAMESPACE_SCOPE_P (decl)
2438 && CP_DECL_CONTEXT (decl) != global_namespace)))
2440 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2441 pp_cxx_colon_colon (cxx_pp);
2444 if (TREE_CODE (decl) == FUNCTION_DECL)
2445 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2447 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2449 return pp_formatted_text (cxx_pp);
2452 /* Return the location of a tree passed to %+ formats. */
2455 location_of (tree t)
2457 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2458 t = DECL_CONTEXT (t);
2459 else if (TYPE_P (t))
2460 t = TYPE_MAIN_DECL (t);
2461 else if (TREE_CODE (t) == OVERLOAD)
2462 t = OVL_FUNCTION (t);
2464 return DECL_SOURCE_LOCATION (t);
2467 /* Now the interfaces from error et al to dump_type et al. Each takes an
2468 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2472 decl_to_string (tree decl, int verbose)
2476 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2477 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2478 flags = TFF_CLASS_KEY_OR_ENUM;
2480 flags |= TFF_DECL_SPECIFIERS;
2481 else if (TREE_CODE (decl) == FUNCTION_DECL)
2482 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2483 flags |= TFF_TEMPLATE_HEADER;
2486 dump_decl (decl, flags);
2487 return pp_formatted_text (cxx_pp);
2491 expr_to_string (tree decl)
2494 dump_expr (decl, 0);
2495 return pp_formatted_text (cxx_pp);
2499 fndecl_to_string (tree fndecl, int verbose)
2503 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2504 | TFF_TEMPLATE_HEADER;
2506 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2508 dump_decl (fndecl, flags);
2509 return pp_formatted_text (cxx_pp);
2514 code_to_string (enum tree_code c)
2516 return tree_code_name [c];
2520 language_to_string (enum languages c)
2527 case lang_cplusplus:
2539 /* Return the proper printed version of a parameter to a C++ function. */
2542 parm_to_string (int p)
2546 pp_string (cxx_pp, "'this'");
2548 pp_decimal_int (cxx_pp, p + 1);
2549 return pp_formatted_text (cxx_pp);
2553 op_to_string (enum tree_code p)
2555 tree id = operator_name_info[(int) p].identifier;
2556 return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
2560 type_to_string (tree typ, int verbose)
2564 flags |= TFF_CLASS_KEY_OR_ENUM;
2565 flags |= TFF_TEMPLATE_HEADER;
2568 dump_type (typ, flags);
2569 return pp_formatted_text (cxx_pp);
2573 assop_to_string (enum tree_code p)
2575 tree id = assignment_operator_name_info[(int) p].identifier;
2576 return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
2580 args_to_string (tree p, int verbose)
2584 flags |= TFF_CLASS_KEY_OR_ENUM;
2589 if (TYPE_P (TREE_VALUE (p)))
2590 return type_as_string_translate (p, flags);
2593 for (; p; p = TREE_CHAIN (p))
2595 if (TREE_VALUE (p) == null_node)
2596 pp_cxx_ws_string (cxx_pp, "NULL");
2598 dump_type (error_type (TREE_VALUE (p)), flags);
2600 pp_separate_with_comma (cxx_pp);
2602 return pp_formatted_text (cxx_pp);
2606 cv_to_string (tree p, int v)
2609 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2610 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2611 return pp_formatted_text (cxx_pp);
2614 /* Langhook for print_error_function. */
2616 cxx_print_error_function (diagnostic_context *context, const char *file,
2617 diagnostic_info *diagnostic)
2619 lhd_print_error_function (context, file, diagnostic);
2620 pp_base_set_prefix (context->printer, file);
2621 maybe_print_instantiation_context (context);
2625 cp_diagnostic_starter (diagnostic_context *context,
2626 diagnostic_info *diagnostic)
2628 diagnostic_report_current_module (context);
2629 cp_print_error_function (context, diagnostic);
2630 maybe_print_instantiation_context (context);
2631 pp_base_set_prefix (context->printer, diagnostic_build_prefix (context,
2636 cp_diagnostic_finalizer (diagnostic_context *context,
2637 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2639 pp_base_destroy_prefix (context->printer);
2642 /* Print current function onto BUFFER, in the process of reporting
2643 a diagnostic message. Called from cp_diagnostic_starter. */
2645 cp_print_error_function (diagnostic_context *context,
2646 diagnostic_info *diagnostic)
2648 if (diagnostic_last_function_changed (context, diagnostic))
2650 const char *old_prefix = context->printer->prefix;
2651 const char *file = LOCATION_FILE (diagnostic->location);
2652 tree abstract_origin = diagnostic_abstract_origin (diagnostic);
2653 char *new_prefix = (file && abstract_origin == NULL)
2654 ? file_name_as_prefix (file) : NULL;
2656 pp_base_set_prefix (context->printer, new_prefix);
2658 if (current_function_decl == NULL)
2659 pp_base_string (context->printer, _("At global scope:"));
2664 if (abstract_origin)
2666 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2667 while (TREE_CODE (ao) == BLOCK
2668 && BLOCK_ABSTRACT_ORIGIN (ao)
2669 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2670 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2671 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2675 fndecl = current_function_decl;
2677 pp_printf (context->printer, function_category (fndecl),
2678 cxx_printable_name_translate (fndecl, 2));
2680 while (abstract_origin)
2683 tree block = abstract_origin;
2685 locus = &BLOCK_SOURCE_LOCATION (block);
2687 block = BLOCK_SUPERCONTEXT (block);
2688 while (block && TREE_CODE (block) == BLOCK
2689 && BLOCK_ABSTRACT_ORIGIN (block))
2691 ao = BLOCK_ABSTRACT_ORIGIN (block);
2693 while (TREE_CODE (ao) == BLOCK
2694 && BLOCK_ABSTRACT_ORIGIN (ao)
2695 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2696 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2698 if (TREE_CODE (ao) == FUNCTION_DECL)
2703 else if (TREE_CODE (ao) != BLOCK)
2706 block = BLOCK_SUPERCONTEXT (block);
2709 abstract_origin = block;
2712 while (block && TREE_CODE (block) == BLOCK)
2713 block = BLOCK_SUPERCONTEXT (block);
2715 if (block && TREE_CODE (block) == FUNCTION_DECL)
2717 abstract_origin = NULL;
2721 expanded_location s = expand_location (*locus);
2722 pp_base_character (context->printer, ',');
2723 pp_base_newline (context->printer);
2726 if (context->show_column && s.column != 0)
2727 pp_printf (context->printer,
2728 _(" inlined from %qs at %s:%d:%d"),
2729 cxx_printable_name_translate (fndecl, 2),
2730 s.file, s.line, s.column);
2732 pp_printf (context->printer,
2733 _(" inlined from %qs at %s:%d"),
2734 cxx_printable_name_translate (fndecl, 2),
2739 pp_printf (context->printer, _(" inlined from %qs"),
2740 cxx_printable_name_translate (fndecl, 2));
2743 pp_base_character (context->printer, ':');
2745 pp_base_newline (context->printer);
2747 diagnostic_set_last_function (context, diagnostic);
2748 pp_base_destroy_prefix (context->printer);
2749 context->printer->prefix = old_prefix;
2753 /* Returns a description of FUNCTION using standard terminology. The
2754 result is a format string of the form "In CATEGORY %qs". */
2756 function_category (tree fn)
2758 /* We can get called from the middle-end for diagnostics of function
2759 clones. Make sure we have language specific information before
2760 dereferencing it. */
2761 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn))
2762 && DECL_FUNCTION_MEMBER_P (fn))
2764 if (DECL_STATIC_FUNCTION_P (fn))
2765 return _("In static member function %qs");
2766 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2767 return _("In copy constructor %qs");
2768 else if (DECL_CONSTRUCTOR_P (fn))
2769 return _("In constructor %qs");
2770 else if (DECL_DESTRUCTOR_P (fn))
2771 return _("In destructor %qs");
2772 else if (LAMBDA_FUNCTION_P (fn))
2773 return _("In lambda function");
2775 return _("In member function %qs");
2778 return _("In function %qs");
2781 /* Report the full context of a current template instantiation,
2784 print_instantiation_full_context (diagnostic_context *context)
2786 struct tinst_level *p = current_instantiation ();
2787 location_t location = input_location;
2791 if (current_function_decl != p->decl
2792 && current_function_decl != NULL_TREE)
2793 /* We can get here during the processing of some synthesized
2794 method. Then, P->DECL will be the function that's causing
2799 if (current_function_decl == p->decl)
2800 /* Avoid redundancy with the "In function" line. */;
2802 pp_verbatim (context->printer,
2803 _("%s: In instantiation of %qs:\n"),
2804 LOCATION_FILE (location),
2805 decl_as_string_translate (p->decl,
2806 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2808 location = p->locus;
2813 print_instantiation_partial_context (context, p, location);
2816 /* Helper function of print_instantiation_partial_context() that
2817 prints a single line of instantiation context. */
2820 print_instantiation_partial_context_line (diagnostic_context *context,
2821 const struct tinst_level *t,
2822 location_t loc, bool recursive_p)
2824 expanded_location xloc;
2825 xloc = expand_location (loc);
2830 str = decl_as_string_translate (t->decl,
2831 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE);
2832 if (context->show_column)
2833 pp_verbatim (context->printer,
2835 ? _("%s:%d:%d: recursively instantiated from %qs\n")
2836 : _("%s:%d:%d: instantiated from %qs\n"),
2837 xloc.file, xloc.line, xloc.column, str);
2839 pp_verbatim (context->printer,
2841 ? _("%s:%d: recursively instantiated from %qs\n")
2842 : _("%s:%d: recursively instantiated from %qs\n"),
2843 xloc.file, xloc.line, str);
2847 if (context->show_column)
2848 pp_verbatim (context->printer,
2850 ? _("%s:%d:%d: recursively instantiated from here")
2851 : _("%s:%d:%d: instantiated from here"),
2852 xloc.file, xloc.line, xloc.column);
2854 pp_verbatim (context->printer,
2856 ? _("%s:%d: recursively instantiated from here")
2857 : _("%s:%d: instantiated from here"),
2858 xloc.file, xloc.line);
2862 /* Same as print_instantiation_full_context but less verbose. */
2865 print_instantiation_partial_context (diagnostic_context *context,
2866 struct tinst_level *t0, location_t loc)
2868 struct tinst_level *t;
2871 location_t prev_loc = loc;
2873 for (t = t0; t != NULL; t = t->next)
2874 if (prev_loc != t->locus)
2876 prev_loc = t->locus;
2884 int skip = n_total - 10;
2885 for (n = 0; n < 5; n++)
2887 gcc_assert (t != NULL);
2888 if (loc != t->locus)
2889 print_instantiation_partial_context_line (context, t, loc,
2890 /*recursive_p=*/false);
2894 if (t != NULL && skip > 1)
2896 expanded_location xloc;
2897 xloc = expand_location (loc);
2898 if (context->show_column)
2899 pp_verbatim (context->printer,
2900 _("%s:%d:%d: [ skipping %d instantiation contexts ]\n"),
2901 xloc.file, xloc.line, xloc.column, skip);
2903 pp_verbatim (context->printer,
2904 _("%s:%d: [ skipping %d instantiation contexts ]\n"),
2905 xloc.file, xloc.line, skip);
2910 } while (t != NULL && --skip > 0);
2916 while (t->next != NULL && t->locus == t->next->locus)
2921 print_instantiation_partial_context_line (context, t, loc,
2926 print_instantiation_partial_context_line (context, NULL, loc,
2927 /*recursive_p=*/false);
2928 pp_base_newline (context->printer);
2931 /* Called from cp_thing to print the template context for an error. */
2933 maybe_print_instantiation_context (diagnostic_context *context)
2935 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2938 record_last_problematic_instantiation ();
2939 print_instantiation_full_context (context);
2942 /* Report the bare minimum context of a template instantiation. */
2944 print_instantiation_context (void)
2946 print_instantiation_partial_context
2947 (global_dc, current_instantiation (), input_location);
2948 diagnostic_flush_buffer (global_dc);
2951 /* Called from output_format -- during diagnostic message processing --
2952 to handle C++ specific format specifier with the following meanings:
2953 %A function argument-list.
2957 %F function declaration.
2958 %L language as used in extern "lang".
2960 %P function parameter whose position is indicated by an integer.
2961 %Q assignment operator.
2965 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
2966 int precision, bool wide, bool set_locus, bool verbose)
2970 #define next_tree (t = va_arg (*text->args_ptr, tree))
2971 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
2972 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
2973 #define next_int va_arg (*text->args_ptr, int)
2975 if (precision != 0 || wide)
2978 if (text->locus == NULL)
2983 case 'A': result = args_to_string (next_tree, verbose); break;
2984 case 'C': result = code_to_string (next_tcode); break;
2987 tree temp = next_tree;
2989 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
2991 temp = DECL_DEBUG_EXPR (temp);
2994 result = expr_to_string (temp);
2998 result = decl_to_string (temp, verbose);
3001 case 'E': result = expr_to_string (next_tree); break;
3002 case 'F': result = fndecl_to_string (next_tree, verbose); break;
3003 case 'L': result = language_to_string (next_lang); break;
3004 case 'O': result = op_to_string (next_tcode); break;
3005 case 'P': result = parm_to_string (next_int); break;
3006 case 'Q': result = assop_to_string (next_tcode); break;
3007 case 'T': result = type_to_string (next_tree, verbose); break;
3008 case 'V': result = cv_to_string (next_tree, verbose); break;
3011 percent_K_format (text);
3018 pp_base_string (pp, result);
3019 if (set_locus && t != NULL)
3020 *text->locus = location_of (t);
3028 /* Warn about the use of C++0x features when appropriate. */
3030 maybe_warn_cpp0x (cpp0x_warn_str str)
3032 if ((cxx_dialect == cxx98) && !in_system_header)
3033 /* We really want to suppress this warning in system headers,
3034 because libstdc++ uses variadic templates even when we aren't
3038 case CPP0X_INITIALIZER_LISTS:
3039 pedwarn (input_location, 0,
3040 "extended initializer lists "
3041 "only available with -std=c++0x or -std=gnu++0x");
3043 case CPP0X_EXPLICIT_CONVERSION:
3044 pedwarn (input_location, 0,
3045 "explicit conversion operators "
3046 "only available with -std=c++0x or -std=gnu++0x");
3048 case CPP0X_VARIADIC_TEMPLATES:
3049 pedwarn (input_location, 0,
3050 "variadic templates "
3051 "only available with -std=c++0x or -std=gnu++0x");
3053 case CPP0X_LAMBDA_EXPR:
3054 pedwarn (input_location, 0,
3055 "lambda expressions "
3056 "only available with -std=c++0x or -std=gnu++0x");
3059 pedwarn (input_location, 0,
3060 "C++0x auto only available with -std=c++0x or -std=gnu++0x");
3062 case CPP0X_SCOPED_ENUMS:
3063 pedwarn (input_location, 0,
3064 "scoped enums only available with -std=c++0x or -std=gnu++0x");
3066 case CPP0X_DEFAULTED_DELETED:
3067 pedwarn (input_location, 0,
3068 "defaulted and deleted functions "
3069 "only available with -std=c++0x or -std=gnu++0x");
3071 case CPP0X_INLINE_NAMESPACES:
3072 pedwarn (input_location, OPT_pedantic,
3073 "inline namespaces "
3074 "only available with -std=c++0x or -std=gnu++0x");
3081 /* Warn about the use of variadic templates when appropriate. */
3083 maybe_warn_variadic_templates (void)
3085 maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES);
3089 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
3090 option OPT with text GMSGID. Use this function to report
3091 diagnostics for constructs that are invalid C++98, but valid
3094 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
3096 diagnostic_info diagnostic;
3099 va_start (ap, gmsgid);
3100 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
3101 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
3102 diagnostic.option_index = opt;
3104 return report_diagnostic (&diagnostic);