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,
4 2003, 2004, 2005, 2006, 2007, 2008, 2009 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"
30 #include "diagnostic.h"
31 #include "langhooks-def.h"
33 #include "cxx-pretty-print.h"
34 #include "pointer-set.h"
36 #define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
38 /* The global buffer where we dump everything. It is there only for
39 transitional purpose. It is expected, in the near future, to be
40 completely removed. */
41 static cxx_pretty_printer scratch_pretty_printer;
42 #define cxx_pp (&scratch_pretty_printer)
44 /* Translate if being used for diagnostics, but not for dump files or
46 #define M_(msgid) (pp_translate_identifiers (cxx_pp) ? _(msgid) : (msgid))
48 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
50 static const char *args_to_string (tree, int);
51 static const char *assop_to_string (enum tree_code);
52 static const char *code_to_string (enum tree_code);
53 static const char *cv_to_string (tree, int);
54 static const char *decl_to_string (tree, int);
55 static const char *expr_to_string (tree);
56 static const char *fndecl_to_string (tree, int);
57 static const char *op_to_string (enum tree_code);
58 static const char *parm_to_string (int);
59 static const char *type_to_string (tree, int);
61 static void dump_type (tree, int);
62 static void dump_typename (tree, int);
63 static void dump_simple_decl (tree, tree, int);
64 static void dump_decl (tree, int);
65 static void dump_template_decl (tree, int);
66 static void dump_function_decl (tree, int);
67 static void dump_expr (tree, int);
68 static void dump_unary_op (const char *, tree, int);
69 static void dump_binary_op (const char *, tree, int);
70 static void dump_aggr_type (tree, int);
71 static void dump_type_prefix (tree, int);
72 static void dump_type_suffix (tree, int);
73 static void dump_function_name (tree, int);
74 static void dump_call_expr_args (tree, int, bool);
75 static void dump_aggr_init_expr_args (tree, int, bool);
76 static void dump_expr_list (tree, int);
77 static void dump_global_iord (tree);
78 static void dump_parameters (tree, int);
79 static void dump_exception_spec (tree, int);
80 static void dump_template_argument (tree, int);
81 static void dump_template_argument_list (tree, tree, int);
82 static void dump_template_parameter (tree, int);
83 static void dump_template_bindings (tree, tree, VEC(tree,gc) *);
84 static void dump_scope (tree, int);
85 static void dump_template_parms (tree, int, int);
87 static int count_non_default_template_args (tree, tree);
89 static const char *function_category (tree);
90 static void maybe_print_instantiation_context (diagnostic_context *);
91 static void print_instantiation_full_context (diagnostic_context *);
92 static void print_instantiation_partial_context (diagnostic_context *,
95 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
96 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
97 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
99 static bool cp_printer (pretty_printer *, text_info *, const char *,
100 int, bool, bool, bool);
101 static location_t location_of (tree);
106 diagnostic_starter (global_dc) = cp_diagnostic_starter;
107 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
108 diagnostic_format_decoder (global_dc) = cp_printer;
110 pp_construct (pp_base (cxx_pp), NULL, 0);
111 pp_cxx_pretty_printer_init (cxx_pp);
114 /* Dump a scope, if deemed necessary. */
117 dump_scope (tree scope, int flags)
119 int f = ~TFF_RETURN_TYPE & (flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF));
121 if (scope == NULL_TREE)
124 if (TREE_CODE (scope) == NAMESPACE_DECL)
126 if (scope != global_namespace)
128 dump_decl (scope, f);
129 pp_cxx_colon_colon (cxx_pp);
132 else if (AGGREGATE_TYPE_P (scope))
134 dump_type (scope, f);
135 pp_cxx_colon_colon (cxx_pp);
137 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
139 dump_function_decl (scope, f);
140 pp_cxx_colon_colon (cxx_pp);
144 /* Dump the template ARGument under control of FLAGS. */
147 dump_template_argument (tree arg, int flags)
149 if (ARGUMENT_PACK_P (arg))
150 dump_template_argument_list (ARGUMENT_PACK_ARGS (arg), NULL_TREE, flags);
151 else if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
152 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
155 if (TREE_CODE (arg) == TREE_LIST)
156 arg = TREE_VALUE (arg);
158 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
162 /* Count the number of template arguments ARGS whose value does not
163 match the (optional) default template parameter in PARAMS */
166 count_non_default_template_args (tree args, tree params)
168 int n = TREE_VEC_LENGTH (args);
171 if (params == NULL_TREE || !flag_pretty_templates)
174 for (last = n - 1; last >= 0; --last)
176 tree param = TREE_VEC_ELT (params, last);
177 tree def = TREE_PURPOSE (param);
181 if (uses_template_parms (def))
183 ++processing_template_decl;
184 def = tsubst_copy_and_build (def, args, tf_none, NULL_TREE, false, true);
185 --processing_template_decl;
187 if (!cp_tree_equal (TREE_VEC_ELT (args, last), def))
194 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
198 dump_template_argument_list (tree args, tree parms, int flags)
200 int n = count_non_default_template_args (args, parms);
204 for (i = 0; i < n; ++i)
206 tree arg = TREE_VEC_ELT (args, i);
208 /* Only print a comma if we know there is an argument coming. In
209 the case of an empty template argument pack, no actual
210 argument will be printed. */
212 && (!ARGUMENT_PACK_P (arg)
213 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
214 pp_separate_with_comma (cxx_pp);
216 dump_template_argument (arg, flags);
221 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
224 dump_template_parameter (tree parm, int flags)
229 if (parm == error_mark_node)
232 p = TREE_VALUE (parm);
233 a = TREE_PURPOSE (parm);
235 if (TREE_CODE (p) == TYPE_DECL)
237 if (flags & TFF_DECL_SPECIFIERS)
239 pp_cxx_ws_string (cxx_pp, "class");
240 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
241 pp_cxx_ws_string (cxx_pp, "...");
243 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
245 else if (DECL_NAME (p))
246 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
248 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
251 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
253 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
255 pp_cxx_whitespace (cxx_pp);
257 pp_cxx_whitespace (cxx_pp);
258 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
259 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
261 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
265 /* Dump, under control of FLAGS, a template-parameter-list binding.
266 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
270 dump_template_bindings (tree parms, tree args, VEC(tree,gc)* typenames)
278 tree p = TREE_VALUE (parms);
279 int lvl = TMPL_PARMS_DEPTH (parms);
282 tree lvl_args = NULL_TREE;
284 /* Don't crash if we had an invalid argument list. */
285 if (TMPL_ARGS_DEPTH (args) >= lvl)
286 lvl_args = TMPL_ARGS_LEVEL (args, lvl);
288 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
290 tree arg = NULL_TREE;
292 /* Don't crash if we had an invalid argument list. */
293 if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
294 arg = TREE_VEC_ELT (lvl_args, arg_idx);
297 pp_separate_with_comma (cxx_pp);
298 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
299 pp_cxx_whitespace (cxx_pp);
301 pp_cxx_whitespace (cxx_pp);
303 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
305 pp_string (cxx_pp, M_("<missing>"));
311 parms = TREE_CHAIN (parms);
314 for (i = 0; VEC_iterate (tree, typenames, i, t); ++i)
317 pp_separate_with_comma (cxx_pp);
318 dump_type (t, TFF_PLAIN_IDENTIFIER);
319 pp_cxx_whitespace (cxx_pp);
321 pp_cxx_whitespace (cxx_pp);
322 t = tsubst (t, args, tf_none, NULL_TREE);
323 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
324 pp_simple_type_specifier doesn't know about it. */
325 t = strip_typedefs (t);
326 dump_type (t, TFF_PLAIN_IDENTIFIER);
330 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
334 dump_type (tree t, int flags)
339 if (TYPE_PTRMEMFUNC_P (t))
342 switch (TREE_CODE (t))
345 if (t == init_list_type_node)
346 pp_string (cxx_pp, M_("<brace-enclosed initializer list>"));
348 pp_string (cxx_pp, M_("<unresolved overloaded function type>"));
352 /* A list of function parms. */
353 dump_parameters (t, flags);
356 case IDENTIFIER_NODE:
357 pp_cxx_tree_identifier (cxx_pp, t);
361 dump_type (BINFO_TYPE (t), flags);
367 dump_aggr_type (t, flags);
371 if (flags & TFF_CHASE_TYPEDEF)
373 dump_type (DECL_ORIGINAL_TYPE (t)
374 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
377 /* Else fall through. */
381 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
390 case FIXED_POINT_TYPE:
391 pp_type_specifier_seq (cxx_pp, t);
394 case TEMPLATE_TEMPLATE_PARM:
395 /* For parameters inside template signature. */
396 if (TYPE_IDENTIFIER (t))
397 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
399 pp_cxx_canonical_template_parameter (cxx_pp, t);
402 case BOUND_TEMPLATE_TEMPLATE_PARM:
404 tree args = TYPE_TI_ARGS (t);
405 pp_cxx_cv_qualifier_seq (cxx_pp, t);
406 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
407 pp_cxx_begin_template_argument_list (cxx_pp);
408 dump_template_argument_list (args, NULL_TREE, flags);
409 pp_cxx_end_template_argument_list (cxx_pp);
413 case TEMPLATE_TYPE_PARM:
414 pp_cxx_cv_qualifier_seq (cxx_pp, t);
415 if (TYPE_IDENTIFIER (t))
416 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
418 pp_cxx_canonical_template_parameter
419 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
422 /* This is not always necessary for pointers and such, but doing this
423 reduces code size. */
432 dump_type_prefix (t, flags);
433 dump_type_suffix (t, flags);
437 if (! (flags & TFF_CHASE_TYPEDEF)
438 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
440 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
443 pp_cxx_cv_qualifier_seq (cxx_pp, t);
444 pp_cxx_ws_string (cxx_pp,
445 TYPENAME_IS_ENUM_P (t) ? "enum"
446 : TYPENAME_IS_CLASS_P (t) ? "class"
448 dump_typename (t, flags);
451 case UNBOUND_CLASS_TEMPLATE:
452 dump_type (TYPE_CONTEXT (t), flags);
453 pp_cxx_colon_colon (cxx_pp);
454 pp_cxx_ws_string (cxx_pp, "template");
455 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
459 pp_cxx_ws_string (cxx_pp, "__typeof__");
460 pp_cxx_whitespace (cxx_pp);
461 pp_cxx_left_paren (cxx_pp);
462 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
463 pp_cxx_right_paren (cxx_pp);
466 case TYPE_PACK_EXPANSION:
467 dump_type (PACK_EXPANSION_PATTERN (t), flags);
468 pp_cxx_ws_string (cxx_pp, "...");
471 case TYPE_ARGUMENT_PACK:
472 dump_template_argument (t, flags);
476 pp_cxx_ws_string (cxx_pp, "decltype");
477 pp_cxx_whitespace (cxx_pp);
478 pp_cxx_left_paren (cxx_pp);
479 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
480 pp_cxx_right_paren (cxx_pp);
484 pp_unsupported_tree (cxx_pp, t);
485 /* Fall through to error. */
488 pp_string (cxx_pp, M_("<type error>"));
493 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
497 dump_typename (tree t, int flags)
499 tree ctx = TYPE_CONTEXT (t);
501 if (TREE_CODE (ctx) == TYPENAME_TYPE)
502 dump_typename (ctx, flags);
504 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
505 pp_cxx_colon_colon (cxx_pp);
506 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
509 /* Return the name of the supplied aggregate, or enumeral type. */
512 class_key_or_enum_as_string (tree t)
514 if (TREE_CODE (t) == ENUMERAL_TYPE)
516 if (SCOPED_ENUM_P (t))
521 else if (TREE_CODE (t) == UNION_TYPE)
523 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
529 /* Print out a class declaration T under the control of FLAGS,
530 in the form `class foo'. */
533 dump_aggr_type (tree t, int flags)
536 const char *variety = class_key_or_enum_as_string (t);
540 pp_cxx_cv_qualifier_seq (cxx_pp, t);
542 if (flags & TFF_CLASS_KEY_OR_ENUM)
543 pp_cxx_ws_string (cxx_pp, variety);
545 name = TYPE_NAME (t);
549 typdef = !DECL_ARTIFICIAL (name);
552 && ((flags & TFF_CHASE_TYPEDEF)
553 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
554 && DECL_TEMPLATE_INFO (name))))
556 t = TYPE_MAIN_VARIANT (t);
557 name = TYPE_NAME (t);
561 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
562 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
563 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
564 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
566 if (! (flags & TFF_UNQUALIFIED_NAME))
567 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
568 flags &= ~TFF_UNQUALIFIED_NAME;
571 /* Because the template names are mangled, we have to locate
572 the most general template, and use that name. */
573 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
575 while (DECL_TEMPLATE_INFO (tpl))
576 tpl = DECL_TI_TEMPLATE (tpl);
579 name = DECL_NAME (name);
582 if (name == 0 || ANON_AGGRNAME_P (name))
584 if (flags & TFF_CLASS_KEY_OR_ENUM)
585 pp_string (cxx_pp, M_("<anonymous>"));
587 pp_printf (pp_base (cxx_pp), M_("<anonymous %s>"), variety);
590 pp_cxx_tree_identifier (cxx_pp, name);
592 dump_template_parms (TYPE_TEMPLATE_INFO (t),
593 !CLASSTYPE_USE_TEMPLATE (t),
594 flags & ~TFF_TEMPLATE_HEADER);
597 /* Dump into the obstack the initial part of the output for a given type.
598 This is necessary when dealing with things like functions returning
601 return type of `int (* fee ())()': pointer -> function -> int. Both
602 pointer (and reference and offset) and function (and member) types must
603 deal with prefix and suffix.
605 Arrays must also do this for DECL nodes, like int a[], and for things like
609 dump_type_prefix (tree t, int flags)
611 if (TYPE_PTRMEMFUNC_P (t))
613 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
617 switch (TREE_CODE (t))
622 tree sub = TREE_TYPE (t);
624 dump_type_prefix (sub, flags);
625 if (TREE_CODE (sub) == ARRAY_TYPE
626 || TREE_CODE (sub) == FUNCTION_TYPE)
628 pp_cxx_whitespace (cxx_pp);
629 pp_cxx_left_paren (cxx_pp);
631 if (TREE_CODE (t) == POINTER_TYPE)
632 pp_character(cxx_pp, '*');
633 else if (TREE_CODE (t) == REFERENCE_TYPE)
635 if (TYPE_REF_IS_RVALUE (t))
636 pp_string (cxx_pp, "&&");
638 pp_character (cxx_pp, '&');
640 pp_base (cxx_pp)->padding = pp_before;
641 pp_cxx_cv_qualifier_seq (cxx_pp, t);
647 dump_type_prefix (TREE_TYPE (t), flags);
648 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
650 pp_maybe_space (cxx_pp);
651 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
652 pp_cxx_left_paren (cxx_pp);
653 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
654 pp_cxx_colon_colon (cxx_pp);
656 pp_cxx_star (cxx_pp);
657 pp_cxx_cv_qualifier_seq (cxx_pp, t);
658 pp_base (cxx_pp)->padding = pp_before;
661 /* This can be reached without a pointer when dealing with
662 templates, e.g. std::is_function. */
664 dump_type_prefix (TREE_TYPE (t), flags);
668 dump_type_prefix (TREE_TYPE (t), flags);
669 pp_maybe_space (cxx_pp);
670 pp_cxx_left_paren (cxx_pp);
671 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
672 pp_cxx_colon_colon (cxx_pp);
676 dump_type_prefix (TREE_TYPE (t), flags);
680 case IDENTIFIER_NODE:
685 case TEMPLATE_TYPE_PARM:
686 case TEMPLATE_TEMPLATE_PARM:
687 case BOUND_TEMPLATE_TEMPLATE_PARM:
699 case TYPE_PACK_EXPANSION:
700 case FIXED_POINT_TYPE:
701 dump_type (t, flags);
702 pp_base (cxx_pp)->padding = pp_before;
706 pp_unsupported_tree (cxx_pp, t);
709 pp_string (cxx_pp, M_("<typeprefixerror>"));
714 /* Dump the suffix of type T, under control of FLAGS. This is the part
715 which appears after the identifier (or function parms). */
718 dump_type_suffix (tree t, int flags)
720 if (TYPE_PTRMEMFUNC_P (t))
721 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
723 switch (TREE_CODE (t))
728 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
729 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
730 pp_cxx_right_paren (cxx_pp);
731 dump_type_suffix (TREE_TYPE (t), flags);
738 if (TREE_CODE (t) == METHOD_TYPE)
739 /* Can only be reached through a pointer. */
740 pp_cxx_right_paren (cxx_pp);
741 arg = TYPE_ARG_TYPES (t);
742 if (TREE_CODE (t) == METHOD_TYPE)
743 arg = TREE_CHAIN (arg);
745 /* Function pointers don't have default args. Not in standard C++,
746 anyway; they may in g++, but we'll just pretend otherwise. */
747 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
749 if (TREE_CODE (t) == METHOD_TYPE)
750 pp_cxx_cv_qualifier_seq
751 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
753 pp_cxx_cv_qualifier_seq (cxx_pp, t);
754 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
755 dump_type_suffix (TREE_TYPE (t), flags);
760 pp_maybe_space (cxx_pp);
761 pp_cxx_left_bracket (cxx_pp);
764 tree dtype = TYPE_DOMAIN (t);
765 tree max = TYPE_MAX_VALUE (dtype);
766 if (host_integerp (max, 0))
767 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
768 else if (TREE_CODE (max) == MINUS_EXPR)
769 dump_expr (TREE_OPERAND (max, 0),
770 flags & ~TFF_EXPR_IN_PARENS);
772 dump_expr (fold_build2 (PLUS_EXPR, dtype, max,
773 build_int_cst (dtype, 1)),
774 flags & ~TFF_EXPR_IN_PARENS);
776 pp_cxx_right_bracket (cxx_pp);
777 dump_type_suffix (TREE_TYPE (t), flags);
781 case IDENTIFIER_NODE:
786 case TEMPLATE_TYPE_PARM:
787 case TEMPLATE_TEMPLATE_PARM:
788 case BOUND_TEMPLATE_TEMPLATE_PARM:
800 case TYPE_PACK_EXPANSION:
801 case FIXED_POINT_TYPE:
805 pp_unsupported_tree (cxx_pp, t);
807 /* Don't mark it here, we should have already done in
814 dump_global_iord (tree t)
816 const char *p = NULL;
818 if (DECL_GLOBAL_CTOR_P (t))
819 p = M_("(static initializers for %s)");
820 else if (DECL_GLOBAL_DTOR_P (t))
821 p = M_("(static destructors for %s)");
825 pp_printf (pp_base (cxx_pp), p, input_filename);
829 dump_simple_decl (tree t, tree type, int flags)
831 if (flags & TFF_DECL_SPECIFIERS)
833 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
834 pp_maybe_space (cxx_pp);
836 if (! (flags & TFF_UNQUALIFIED_NAME)
837 && (!DECL_INITIAL (t)
838 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
839 dump_scope (CP_DECL_CONTEXT (t), flags);
840 flags &= ~TFF_UNQUALIFIED_NAME;
841 if ((flags & TFF_DECL_SPECIFIERS)
842 && DECL_TEMPLATE_PARM_P (t)
843 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
844 pp_string (cxx_pp, "...");
846 dump_decl (DECL_NAME (t), flags);
848 pp_string (cxx_pp, M_("<anonymous>"));
849 if (flags & TFF_DECL_SPECIFIERS)
850 dump_type_suffix (type, flags);
853 /* Dump a human readable string for the decl T under control of FLAGS. */
856 dump_decl (tree t, int flags)
861 switch (TREE_CODE (t))
864 /* Don't say 'typedef class A' */
865 if (DECL_ARTIFICIAL (t))
867 if ((flags & TFF_DECL_SPECIFIERS)
868 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
870 /* Say `class T' not just `T'. */
871 pp_cxx_ws_string (cxx_pp, "class");
873 /* Emit the `...' for a parameter pack. */
874 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
875 pp_cxx_ws_string (cxx_pp, "...");
878 dump_type (TREE_TYPE (t), flags);
881 if (flags & TFF_DECL_SPECIFIERS)
882 pp_cxx_ws_string (cxx_pp, "typedef");
883 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
884 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
889 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
891 pp_string (cxx_pp, M_("vtable for "));
892 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
893 dump_type (DECL_CONTEXT (t), flags);
896 /* Else fall through. */
899 dump_simple_decl (t, TREE_TYPE (t), flags);
903 pp_string (cxx_pp, M_("<return value> "));
904 dump_simple_decl (t, TREE_TYPE (t), flags);
908 if (flags & TFF_DECL_SPECIFIERS)
909 pp_cxx_declaration (cxx_pp, t);
912 if (! (flags & TFF_UNQUALIFIED_NAME))
913 dump_scope (CP_DECL_CONTEXT (t), flags);
914 flags &= ~TFF_UNQUALIFIED_NAME;
915 if (DECL_NAME (t) == NULL_TREE)
916 pp_string (cxx_pp, M_("<unnamed>"));
918 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
923 pp_expression (cxx_pp, t);
927 dump_decl (TREE_OPERAND (t, 0), flags);
928 pp_cxx_left_bracket (cxx_pp);
929 dump_decl (TREE_OPERAND (t, 1), flags);
930 pp_cxx_right_bracket (cxx_pp);
933 /* So that we can do dump_decl on an aggr type. */
937 dump_type (t, flags);
941 /* This is a pseudo destructor call which has not been folded into
942 a PSEUDO_DTOR_EXPR yet. */
943 pp_cxx_complement (cxx_pp);
944 dump_type (TREE_OPERAND (t, 0), flags);
951 /* These special cases are duplicated here so that other functions
952 can feed identifiers to error and get them demangled properly. */
953 case IDENTIFIER_NODE:
954 if (IDENTIFIER_TYPENAME_P (t))
956 pp_cxx_ws_string (cxx_pp, "operator");
957 /* Not exactly IDENTIFIER_TYPE_VALUE. */
958 dump_type (TREE_TYPE (t), flags);
962 pp_cxx_tree_identifier (cxx_pp, t);
969 if (DECL_CLASS_SCOPE_P (t))
971 dump_type (DECL_CONTEXT (t), flags);
972 pp_cxx_colon_colon (cxx_pp);
974 else if (DECL_CONTEXT (t))
976 dump_decl (DECL_CONTEXT (t), flags);
977 pp_cxx_colon_colon (cxx_pp);
979 dump_decl (DECL_NAME (t), flags);
983 /* If there's only one function, just treat it like an ordinary
989 if (! DECL_LANG_SPECIFIC (t))
990 pp_string (cxx_pp, M_("<built-in>"));
991 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
992 dump_global_iord (t);
994 dump_function_decl (t, flags);
998 dump_template_decl (t, flags);
1001 case TEMPLATE_ID_EXPR:
1003 tree name = TREE_OPERAND (t, 0);
1005 if (is_overloaded_fn (name))
1006 name = DECL_NAME (get_first_fn (name));
1007 dump_decl (name, flags);
1008 pp_cxx_begin_template_argument_list (cxx_pp);
1009 if (TREE_OPERAND (t, 1))
1010 dump_template_argument_list (TREE_OPERAND (t, 1), NULL_TREE, flags);
1011 pp_cxx_end_template_argument_list (cxx_pp);
1016 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1020 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1021 || (DECL_INITIAL (t) &&
1022 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1023 dump_simple_decl (t, TREE_TYPE (t), flags);
1024 else if (DECL_NAME (t))
1025 dump_decl (DECL_NAME (t), flags);
1026 else if (DECL_INITIAL (t))
1027 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1029 pp_string (cxx_pp, M_("<enumerator>"));
1033 pp_cxx_ws_string (cxx_pp, "using");
1034 dump_type (USING_DECL_SCOPE (t), flags);
1035 pp_cxx_colon_colon (cxx_pp);
1036 dump_decl (DECL_NAME (t), flags);
1040 pp_cxx_declaration (cxx_pp, t);
1044 dump_decl (BASELINK_FUNCTIONS (t), flags);
1047 case NON_DEPENDENT_EXPR:
1048 dump_expr (t, flags);
1051 case TEMPLATE_TYPE_PARM:
1052 if (flags & TFF_DECL_SPECIFIERS)
1053 pp_cxx_declaration (cxx_pp, t);
1055 pp_type_id (cxx_pp, t);
1058 case UNBOUND_CLASS_TEMPLATE:
1059 case TYPE_PACK_EXPANSION:
1061 dump_type (t, flags);
1065 pp_unsupported_tree (cxx_pp, t);
1066 /* Fall through to error. */
1069 pp_string (cxx_pp, M_("<declaration error>"));
1074 /* Dump a template declaration T under control of FLAGS. This means the
1075 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1078 dump_template_decl (tree t, int flags)
1080 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1084 if (flags & TFF_TEMPLATE_HEADER)
1086 for (parms = orig_parms = nreverse (orig_parms);
1088 parms = TREE_CHAIN (parms))
1090 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1091 int len = TREE_VEC_LENGTH (inner_parms);
1093 pp_cxx_ws_string (cxx_pp, "template");
1094 pp_cxx_begin_template_argument_list (cxx_pp);
1096 /* If we've shown the template prefix, we'd better show the
1097 parameters' and decl's type too. */
1098 flags |= TFF_DECL_SPECIFIERS;
1100 for (i = 0; i < len; i++)
1103 pp_separate_with_comma (cxx_pp);
1104 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1106 pp_cxx_end_template_argument_list (cxx_pp);
1107 pp_cxx_whitespace (cxx_pp);
1109 nreverse(orig_parms);
1111 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1113 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1114 pp_cxx_ws_string (cxx_pp, "class");
1116 /* If this is a parameter pack, print the ellipsis. */
1117 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1118 pp_cxx_ws_string (cxx_pp, "...");
1122 if (DECL_TEMPLATE_RESULT (t)
1123 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1124 dump_type (TREE_TYPE (t),
1125 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1126 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1127 else if (DECL_TEMPLATE_RESULT (t)
1128 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1129 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1132 gcc_assert (TREE_TYPE (t));
1133 switch (NEXT_CODE (t))
1137 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1140 /* This case can occur with some invalid code. */
1141 dump_type (TREE_TYPE (t),
1142 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1143 | (flags & TFF_DECL_SPECIFIERS
1144 ? TFF_CLASS_KEY_OR_ENUM : 0));
1149 /* find_typenames looks through the type of the function template T
1150 and returns a VEC containing any typedefs or TYPENAME_TYPEs it finds. */
1152 struct find_typenames_t
1154 struct pointer_set_t *p_set;
1155 VEC (tree,gc) *typenames;
1159 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1161 struct find_typenames_t *d = (struct find_typenames_t *)data;
1162 tree mv = NULL_TREE;
1164 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1165 /* Add the type of the typedef without any additional cv-quals. */
1166 mv = TREE_TYPE (TYPE_NAME (*tp));
1167 else if (TREE_CODE (*tp) == TYPENAME_TYPE)
1168 /* Add the typename without any cv-qualifiers. */
1169 mv = TYPE_MAIN_VARIANT (*tp);
1171 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1172 VEC_safe_push (tree, gc, d->typenames, mv);
1174 /* Search into class template arguments, which cp_walk_subtrees
1176 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1177 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1183 static VEC(tree,gc) *
1184 find_typenames (tree t)
1186 struct find_typenames_t ft;
1187 ft.p_set = pointer_set_create ();
1188 ft.typenames = NULL;
1189 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1190 find_typenames_r, &ft, ft.p_set);
1191 pointer_set_destroy (ft.p_set);
1192 return ft.typenames;
1195 /* Pretty print a function decl. There are several ways we want to print a
1196 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1197 As error can only apply the '#' flag once to give 0 and 1 for V, there
1198 is %D which doesn't print the throw specs, and %F which does. */
1201 dump_function_decl (tree t, int flags)
1205 tree cname = NULL_TREE;
1206 tree template_args = NULL_TREE;
1207 tree template_parms = NULL_TREE;
1208 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1209 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1211 VEC(tree,gc) *typenames = NULL;
1213 flags &= ~TFF_UNQUALIFIED_NAME;
1214 if (TREE_CODE (t) == TEMPLATE_DECL)
1215 t = DECL_TEMPLATE_RESULT (t);
1217 /* Save the exceptions, in case t is a specialization and we are
1218 emitting an error about incompatible specifications. */
1219 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1221 /* Pretty print template instantiations only. */
1222 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1223 && flag_pretty_templates)
1227 template_args = DECL_TI_ARGS (t);
1228 tmpl = most_general_template (t);
1229 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1231 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1233 typenames = find_typenames (t);
1237 fntype = TREE_TYPE (t);
1238 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1240 if (DECL_CLASS_SCOPE_P (t))
1241 cname = DECL_CONTEXT (t);
1242 /* This is for partially instantiated template methods. */
1243 else if (TREE_CODE (fntype) == METHOD_TYPE)
1244 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1246 if (!(flags & TFF_DECL_SPECIFIERS))
1248 else if (DECL_STATIC_FUNCTION_P (t))
1249 pp_cxx_ws_string (cxx_pp, "static");
1250 else if (DECL_VIRTUAL_P (t))
1251 pp_cxx_ws_string (cxx_pp, "virtual");
1253 /* Print the return type? */
1255 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1256 && !DECL_DESTRUCTOR_P (t);
1258 dump_type_prefix (TREE_TYPE (fntype), flags);
1260 /* Print the function name. */
1261 if (!do_outer_scope)
1265 dump_type (cname, flags);
1266 pp_cxx_colon_colon (cxx_pp);
1269 dump_scope (CP_DECL_CONTEXT (t), flags);
1271 dump_function_name (t, flags);
1273 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1275 dump_parameters (parmtypes, flags);
1277 if (TREE_CODE (fntype) == METHOD_TYPE)
1279 pp_base (cxx_pp)->padding = pp_before;
1280 pp_cxx_cv_qualifier_seq
1281 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1284 if (flags & TFF_EXCEPTION_SPECIFICATION)
1286 pp_base (cxx_pp)->padding = pp_before;
1287 dump_exception_spec (exceptions, flags);
1291 dump_type_suffix (TREE_TYPE (fntype), flags);
1294 /* If T is a template instantiation, dump the parameter binding. */
1295 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1297 pp_cxx_whitespace (cxx_pp);
1298 pp_cxx_left_bracket (cxx_pp);
1299 pp_cxx_ws_string (cxx_pp, M_("with"));
1300 pp_cxx_whitespace (cxx_pp);
1301 dump_template_bindings (template_parms, template_args, typenames);
1302 pp_cxx_right_bracket (cxx_pp);
1306 /* Print a parameter list. If this is for a member function, the
1307 member object ptr (and any other hidden args) should have
1308 already been removed. */
1311 dump_parameters (tree parmtypes, int flags)
1314 pp_cxx_left_paren (cxx_pp);
1316 for (first = 1; parmtypes != void_list_node;
1317 parmtypes = TREE_CHAIN (parmtypes))
1320 pp_separate_with_comma (cxx_pp);
1324 pp_cxx_ws_string (cxx_pp, "...");
1328 dump_type (TREE_VALUE (parmtypes), flags);
1330 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1332 pp_cxx_whitespace (cxx_pp);
1334 pp_cxx_whitespace (cxx_pp);
1335 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1339 pp_cxx_right_paren (cxx_pp);
1342 /* Print an exception specification. T is the exception specification. */
1345 dump_exception_spec (tree t, int flags)
1349 pp_cxx_ws_string (cxx_pp, "throw");
1350 pp_cxx_whitespace (cxx_pp);
1351 pp_cxx_left_paren (cxx_pp);
1352 if (TREE_VALUE (t) != NULL_TREE)
1355 dump_type (TREE_VALUE (t), flags);
1359 pp_separate_with_comma (cxx_pp);
1361 pp_cxx_right_paren (cxx_pp);
1365 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1366 and destructors properly. */
1369 dump_function_name (tree t, int flags)
1371 tree name = DECL_NAME (t);
1373 /* We can get here with a decl that was synthesized by language-
1374 independent machinery (e.g. coverage.c) in which case it won't
1375 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1376 will crash. In this case it is safe just to print out the
1378 if (!DECL_LANG_SPECIFIC (t))
1380 pp_cxx_tree_identifier (cxx_pp, name);
1384 if (TREE_CODE (t) == TEMPLATE_DECL)
1385 t = DECL_TEMPLATE_RESULT (t);
1387 /* Don't let the user see __comp_ctor et al. */
1388 if (DECL_CONSTRUCTOR_P (t)
1389 || DECL_DESTRUCTOR_P (t))
1390 name = constructor_name (DECL_CONTEXT (t));
1392 if (DECL_DESTRUCTOR_P (t))
1394 pp_cxx_complement (cxx_pp);
1395 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1397 else if (DECL_CONV_FN_P (t))
1399 /* This cannot use the hack that the operator's return
1400 type is stashed off of its name because it may be
1401 used for error reporting. In the case of conflicting
1402 declarations, both will have the same name, yet
1403 the types will be different, hence the TREE_TYPE field
1404 of the first name will be clobbered by the second. */
1405 pp_cxx_ws_string (cxx_pp, "operator");
1406 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1408 else if (IDENTIFIER_OPNAME_P (name))
1409 pp_cxx_tree_identifier (cxx_pp, name);
1411 dump_decl (name, flags);
1413 if (DECL_TEMPLATE_INFO (t)
1414 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1415 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1416 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1417 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1420 /* Dump the template parameters from the template info INFO under control of
1421 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1422 specialization (partial or complete). For partial specializations we show
1423 the specialized parameter values. For a primary template we show no
1427 dump_template_parms (tree info, int primary, int flags)
1429 tree args = info ? TI_ARGS (info) : NULL_TREE;
1431 if (primary && flags & TFF_TEMPLATE_NAME)
1433 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1434 pp_cxx_begin_template_argument_list (cxx_pp);
1436 /* Be careful only to print things when we have them, so as not
1437 to crash producing error messages. */
1438 if (args && !primary)
1441 /* We don't know the parms for a friend template specialization. */
1442 tree params = (TREE_CODE (TI_TEMPLATE (info)) == TEMPLATE_DECL
1443 ? DECL_INNERMOST_TEMPLATE_PARMS (TI_TEMPLATE (info))
1446 if (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (args))
1447 args = TREE_VEC_ELT (args, TREE_VEC_LENGTH (args) - 1);
1449 len = count_non_default_template_args (args, params);
1451 for (ix = 0; ix != len; ix++)
1453 tree arg = TREE_VEC_ELT (args, ix);
1455 /* Only print a comma if we know there is an argument coming. In
1456 the case of an empty template argument pack, no actual
1457 argument will be printed. */
1459 && (!ARGUMENT_PACK_P (arg)
1460 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1461 pp_separate_with_comma (cxx_pp);
1464 pp_string (cxx_pp, M_("<template parameter error>"));
1466 dump_template_argument (arg, flags);
1471 tree tpl = TI_TEMPLATE (info);
1472 tree parms = DECL_TEMPLATE_PARMS (tpl);
1475 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1476 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1478 for (ix = 0; ix != len; ix++)
1482 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1484 pp_string (cxx_pp, M_("<template parameter error>"));
1488 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1491 pp_separate_with_comma (cxx_pp);
1493 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1496 pp_cxx_end_template_argument_list (cxx_pp);
1499 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1500 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1503 dump_call_expr_args (tree t, int flags, bool skipfirst)
1506 call_expr_arg_iterator iter;
1508 pp_cxx_left_paren (cxx_pp);
1509 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1515 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1516 if (more_call_expr_args_p (&iter))
1517 pp_separate_with_comma (cxx_pp);
1520 pp_cxx_right_paren (cxx_pp);
1523 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1524 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1528 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1531 aggr_init_expr_arg_iterator iter;
1533 pp_cxx_left_paren (cxx_pp);
1534 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1540 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1541 if (more_aggr_init_expr_args_p (&iter))
1542 pp_separate_with_comma (cxx_pp);
1545 pp_cxx_right_paren (cxx_pp);
1548 /* Print out a list of initializers (subr of dump_expr). */
1551 dump_expr_list (tree l, int flags)
1555 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1558 pp_separate_with_comma (cxx_pp);
1562 /* Print out a vector of initializers (subr of dump_expr). */
1565 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1567 unsigned HOST_WIDE_INT idx;
1570 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1572 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1573 if (idx != VEC_length (constructor_elt, v) - 1)
1574 pp_separate_with_comma (cxx_pp);
1579 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1580 function. Resolve it to a close relative -- in the sense of static
1581 type -- variant being overridden. That is close to what was written in
1582 the source code. Subroutine of dump_expr. */
1585 resolve_virtual_fun_from_obj_type_ref (tree ref)
1587 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1588 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1589 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1592 fun = TREE_CHAIN (fun);
1593 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1594 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1600 /* Print out an expression E under control of FLAGS. */
1603 dump_expr (tree t, int flags)
1608 if (STATEMENT_CLASS_P (t))
1610 pp_cxx_ws_string (cxx_pp, M_("<statement>"));
1614 switch (TREE_CODE (t))
1622 case NAMESPACE_DECL:
1625 case IDENTIFIER_NODE:
1626 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1633 pp_constant (cxx_pp, t);
1637 /* While waiting for caret diagnostics, avoid printing
1638 __cxa_allocate_exception, __cxa_throw, and the like. */
1639 pp_cxx_ws_string (cxx_pp, M_("<throw-expression>"));
1643 pp_ampersand (cxx_pp);
1644 dump_type (PTRMEM_CST_CLASS (t), flags);
1645 pp_cxx_colon_colon (cxx_pp);
1646 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1650 pp_cxx_left_paren (cxx_pp);
1651 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1652 pp_separate_with_comma (cxx_pp);
1653 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1654 pp_cxx_right_paren (cxx_pp);
1658 pp_cxx_left_paren (cxx_pp);
1659 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1660 pp_string (cxx_pp, " ? ");
1661 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1662 pp_string (cxx_pp, " : ");
1663 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1664 pp_cxx_right_paren (cxx_pp);
1668 if (TREE_HAS_CONSTRUCTOR (t))
1670 pp_cxx_ws_string (cxx_pp, "new");
1671 pp_cxx_whitespace (cxx_pp);
1672 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1675 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1678 case AGGR_INIT_EXPR:
1680 tree fn = NULL_TREE;
1682 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1683 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1685 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1687 if (DECL_CONSTRUCTOR_P (fn))
1688 dump_type (DECL_CONTEXT (fn), flags);
1693 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1695 dump_aggr_init_expr_args (t, flags, true);
1700 tree fn = CALL_EXPR_FN (t);
1701 bool skipfirst = false;
1703 if (TREE_CODE (fn) == ADDR_EXPR)
1704 fn = TREE_OPERAND (fn, 0);
1706 /* Nobody is interested in seeing the guts of vcalls. */
1707 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1708 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1710 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1712 tree ob = CALL_EXPR_ARG (t, 0);
1713 if (TREE_CODE (ob) == ADDR_EXPR)
1715 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1716 pp_cxx_dot (cxx_pp);
1718 else if (TREE_CODE (ob) != PARM_DECL
1719 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1721 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1722 pp_cxx_arrow (cxx_pp);
1726 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1727 dump_call_expr_args (t, flags, skipfirst);
1732 /* Note that this only works for G++ target exprs. If somebody
1733 builds a general TARGET_EXPR, there's no way to represent that
1734 it initializes anything other that the parameter slot for the
1735 default argument. Note we may have cleared out the first
1736 operand in expand_expr, so don't go killing ourselves. */
1737 if (TREE_OPERAND (t, 1))
1738 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1741 case POINTER_PLUS_EXPR:
1742 dump_binary_op ("+", t, flags);
1750 case TRUNC_DIV_EXPR:
1751 case TRUNC_MOD_EXPR:
1759 case TRUTH_ANDIF_EXPR:
1760 case TRUTH_ORIF_EXPR:
1767 case EXACT_DIV_EXPR:
1768 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1772 case FLOOR_DIV_EXPR:
1773 case ROUND_DIV_EXPR:
1775 dump_binary_op ("/", t, flags);
1779 case FLOOR_MOD_EXPR:
1780 case ROUND_MOD_EXPR:
1781 dump_binary_op ("%", t, flags);
1786 tree ob = TREE_OPERAND (t, 0);
1787 if (TREE_CODE (ob) == INDIRECT_REF)
1789 ob = TREE_OPERAND (ob, 0);
1790 if (TREE_CODE (ob) != PARM_DECL
1792 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1794 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1795 pp_cxx_arrow (cxx_pp);
1800 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1801 pp_cxx_dot (cxx_pp);
1803 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1808 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1809 pp_cxx_left_bracket (cxx_pp);
1810 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1811 pp_cxx_right_bracket (cxx_pp);
1814 case UNARY_PLUS_EXPR:
1815 dump_unary_op ("+", t, flags);
1819 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1820 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1821 /* An ADDR_EXPR can have reference type. In that case, we
1822 shouldn't print the `&' doing so indicates to the user
1823 that the expression has pointer type. */
1825 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1826 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1827 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1828 dump_unary_op ("&&", t, flags);
1830 dump_unary_op ("&", t, flags);
1834 if (TREE_HAS_CONSTRUCTOR (t))
1836 t = TREE_OPERAND (t, 0);
1837 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1838 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1839 dump_call_expr_args (t, flags, true);
1843 if (TREE_OPERAND (t,0) != NULL_TREE
1844 && TREE_TYPE (TREE_OPERAND (t, 0))
1845 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1846 dump_expr (TREE_OPERAND (t, 0), flags);
1848 dump_unary_op ("*", t, flags);
1854 case TRUTH_NOT_EXPR:
1855 case PREDECREMENT_EXPR:
1856 case PREINCREMENT_EXPR:
1857 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1860 case POSTDECREMENT_EXPR:
1861 case POSTINCREMENT_EXPR:
1862 pp_cxx_left_paren (cxx_pp);
1863 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1864 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1865 pp_cxx_right_paren (cxx_pp);
1868 case NON_LVALUE_EXPR:
1869 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1870 should be another level of INDIRECT_REF so that I don't have to do
1872 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1874 tree next = TREE_TYPE (TREE_TYPE (t));
1876 while (TREE_CODE (next) == POINTER_TYPE)
1877 next = TREE_TYPE (next);
1879 if (TREE_CODE (next) == FUNCTION_TYPE)
1881 if (flags & TFF_EXPR_IN_PARENS)
1882 pp_cxx_left_paren (cxx_pp);
1883 pp_cxx_star (cxx_pp);
1884 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1885 if (flags & TFF_EXPR_IN_PARENS)
1886 pp_cxx_right_paren (cxx_pp);
1889 /* Else fall through. */
1891 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1895 case VIEW_CONVERT_EXPR:
1897 tree op = TREE_OPERAND (t, 0);
1899 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1901 /* It is a cast, but we cannot tell whether it is a
1902 reinterpret or static cast. Use the C style notation. */
1903 if (flags & TFF_EXPR_IN_PARENS)
1904 pp_cxx_left_paren (cxx_pp);
1905 pp_cxx_left_paren (cxx_pp);
1906 dump_type (TREE_TYPE (t), flags);
1907 pp_cxx_right_paren (cxx_pp);
1908 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1909 if (flags & TFF_EXPR_IN_PARENS)
1910 pp_cxx_right_paren (cxx_pp);
1913 dump_expr (op, flags);
1918 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1920 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1922 if (integer_zerop (idx))
1924 /* A NULL pointer-to-member constant. */
1925 pp_cxx_left_paren (cxx_pp);
1926 pp_cxx_left_paren (cxx_pp);
1927 dump_type (TREE_TYPE (t), flags);
1928 pp_cxx_right_paren (cxx_pp);
1929 pp_character (cxx_pp, '0');
1930 pp_cxx_right_paren (cxx_pp);
1933 else if (host_integerp (idx, 0))
1936 unsigned HOST_WIDE_INT n;
1938 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1939 t = TYPE_METHOD_BASETYPE (t);
1940 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1942 n = tree_low_cst (idx, 0);
1944 /* Map vtable index back one, to allow for the null pointer to
1948 while (n > 0 && virtuals)
1951 virtuals = TREE_CHAIN (virtuals);
1955 dump_expr (BV_FN (virtuals),
1956 flags | TFF_EXPR_IN_PARENS);
1961 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
1963 dump_type (TREE_TYPE (t), 0);
1964 pp_cxx_left_paren (cxx_pp);
1965 pp_cxx_right_paren (cxx_pp);
1969 pp_cxx_left_brace (cxx_pp);
1970 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
1971 pp_cxx_right_brace (cxx_pp);
1978 tree ob = TREE_OPERAND (t, 0);
1979 if (is_dummy_object (ob))
1981 t = TREE_OPERAND (t, 1);
1982 if (TREE_CODE (t) == FUNCTION_DECL)
1984 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
1985 else if (BASELINK_P (t))
1986 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
1987 flags | TFF_EXPR_IN_PARENS);
1989 dump_decl (t, flags);
1993 if (TREE_CODE (ob) == INDIRECT_REF)
1995 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1996 pp_cxx_arrow (cxx_pp);
1997 pp_cxx_star (cxx_pp);
2001 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2002 pp_cxx_dot (cxx_pp);
2003 pp_cxx_star (cxx_pp);
2005 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2010 case TEMPLATE_PARM_INDEX:
2011 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2015 if (TREE_OPERAND (t, 0) == NULL_TREE
2016 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2018 dump_type (TREE_TYPE (t), flags);
2019 pp_cxx_left_paren (cxx_pp);
2020 dump_expr_list (TREE_OPERAND (t, 0), flags);
2021 pp_cxx_right_paren (cxx_pp);
2025 pp_cxx_left_paren (cxx_pp);
2026 dump_type (TREE_TYPE (t), flags);
2027 pp_cxx_right_paren (cxx_pp);
2028 pp_cxx_left_paren (cxx_pp);
2029 dump_expr_list (TREE_OPERAND (t, 0), flags);
2030 pp_cxx_right_paren (cxx_pp);
2034 case STATIC_CAST_EXPR:
2035 pp_cxx_ws_string (cxx_pp, "static_cast");
2037 case REINTERPRET_CAST_EXPR:
2038 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2040 case CONST_CAST_EXPR:
2041 pp_cxx_ws_string (cxx_pp, "const_cast");
2043 case DYNAMIC_CAST_EXPR:
2044 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2046 pp_cxx_begin_template_argument_list (cxx_pp);
2047 dump_type (TREE_TYPE (t), flags);
2048 pp_cxx_end_template_argument_list (cxx_pp);
2049 pp_cxx_left_paren (cxx_pp);
2050 dump_expr (TREE_OPERAND (t, 0), flags);
2051 pp_cxx_right_paren (cxx_pp);
2055 dump_expr (TREE_OPERAND (t, 0), flags);
2056 pp_cxx_arrow (cxx_pp);
2061 if (TREE_CODE (t) == SIZEOF_EXPR)
2062 pp_cxx_ws_string (cxx_pp, "sizeof");
2065 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2066 pp_cxx_ws_string (cxx_pp, "__alignof__");
2068 pp_cxx_whitespace (cxx_pp);
2069 pp_cxx_left_paren (cxx_pp);
2070 if (TYPE_P (TREE_OPERAND (t, 0)))
2071 dump_type (TREE_OPERAND (t, 0), flags);
2073 dump_expr (TREE_OPERAND (t, 0), flags);
2074 pp_cxx_right_paren (cxx_pp);
2079 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2080 pp_cxx_whitespace (cxx_pp);
2081 dump_expr (TREE_OPERAND (t, 0), flags);
2085 pp_string (cxx_pp, M_("<unparsed>"));
2088 case TRY_CATCH_EXPR:
2089 case WITH_CLEANUP_EXPR:
2090 case CLEANUP_POINT_EXPR:
2091 dump_expr (TREE_OPERAND (t, 0), flags);
2094 case PSEUDO_DTOR_EXPR:
2095 dump_expr (TREE_OPERAND (t, 2), flags);
2096 pp_cxx_dot (cxx_pp);
2097 dump_type (TREE_OPERAND (t, 0), flags);
2098 pp_cxx_colon_colon (cxx_pp);
2099 pp_cxx_complement (cxx_pp);
2100 dump_type (TREE_OPERAND (t, 1), flags);
2103 case TEMPLATE_ID_EXPR:
2104 dump_decl (t, flags);
2110 case STATEMENT_LIST:
2111 /* We don't yet have a way of dumping statements in a
2112 human-readable format. */
2113 pp_string (cxx_pp, "({...})");
2117 pp_string (cxx_pp, "while (1) { ");
2118 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2119 pp_cxx_right_brace (cxx_pp);
2123 pp_string (cxx_pp, "if (");
2124 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2125 pp_string (cxx_pp, ") break; ");
2129 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2132 case EMPTY_CLASS_EXPR:
2133 dump_type (TREE_TYPE (t), flags);
2134 pp_cxx_left_paren (cxx_pp);
2135 pp_cxx_right_paren (cxx_pp);
2138 case NON_DEPENDENT_EXPR:
2139 dump_expr (TREE_OPERAND (t, 0), flags);
2142 case ARGUMENT_PACK_SELECT:
2143 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2155 pp_type_specifier_seq (cxx_pp, t);
2159 /* We get here when we want to print a dependent type as an
2160 id-expression, without any disambiguator decoration. */
2161 pp_id_expression (cxx_pp, t);
2164 case TEMPLATE_TYPE_PARM:
2165 case BOUND_TEMPLATE_TEMPLATE_PARM:
2166 dump_type (t, flags);
2170 pp_cxx_trait_expression (cxx_pp, t);
2174 pp_cxx_va_arg_expression (cxx_pp, t);
2178 pp_cxx_offsetof_expression (cxx_pp, t);
2182 case EXPR_PACK_EXPANSION:
2189 case VEC_DELETE_EXPR:
2195 case UNORDERED_EXPR:
2205 case FIX_TRUNC_EXPR:
2207 pp_expression (cxx_pp, t);
2210 case TRUTH_AND_EXPR:
2212 case TRUTH_XOR_EXPR:
2213 if (flags & TFF_EXPR_IN_PARENS)
2214 pp_cxx_left_paren (cxx_pp);
2215 pp_expression (cxx_pp, t);
2216 if (flags & TFF_EXPR_IN_PARENS)
2217 pp_cxx_right_paren (cxx_pp);
2221 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2224 /* This list is incomplete, but should suffice for now.
2225 It is very important that `sorry' does not call
2226 `report_error_function'. That could cause an infinite loop. */
2228 pp_unsupported_tree (cxx_pp, t);
2229 /* fall through to ERROR_MARK... */
2231 pp_string (cxx_pp, M_("<expression error>"));
2237 dump_binary_op (const char *opstring, tree t, int flags)
2239 pp_cxx_left_paren (cxx_pp);
2240 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2241 pp_cxx_whitespace (cxx_pp);
2243 pp_cxx_ws_string (cxx_pp, opstring);
2245 pp_string (cxx_pp, M_("<unknown operator>"));
2246 pp_cxx_whitespace (cxx_pp);
2247 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2248 pp_cxx_right_paren (cxx_pp);
2252 dump_unary_op (const char *opstring, tree t, int flags)
2254 if (flags & TFF_EXPR_IN_PARENS)
2255 pp_cxx_left_paren (cxx_pp);
2256 pp_cxx_ws_string (cxx_pp, opstring);
2257 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2258 if (flags & TFF_EXPR_IN_PARENS)
2259 pp_cxx_right_paren (cxx_pp);
2263 reinit_cxx_pp (void)
2265 pp_clear_output_area (cxx_pp);
2266 pp_base (cxx_pp)->padding = pp_none;
2267 pp_indentation (cxx_pp) = 0;
2268 pp_needs_newline (cxx_pp) = false;
2269 cxx_pp->enclosing_scope = current_function_decl;
2273 /* Exported interface to stringifying types, exprs and decls under TFF_*
2277 type_as_string (tree typ, int flags)
2280 pp_translate_identifiers (cxx_pp) = false;
2281 dump_type (typ, flags);
2282 return pp_formatted_text (cxx_pp);
2286 type_as_string_translate (tree typ, int flags)
2289 dump_type (typ, flags);
2290 return pp_formatted_text (cxx_pp);
2294 expr_as_string (tree decl, int flags)
2297 pp_translate_identifiers (cxx_pp) = false;
2298 dump_expr (decl, flags);
2299 return pp_formatted_text (cxx_pp);
2303 decl_as_string (tree decl, int flags)
2306 pp_translate_identifiers (cxx_pp) = false;
2307 dump_decl (decl, flags);
2308 return pp_formatted_text (cxx_pp);
2312 decl_as_string_translate (tree decl, int flags)
2315 dump_decl (decl, flags);
2316 return pp_formatted_text (cxx_pp);
2319 /* Generate the three forms of printable names for cxx_printable_name. */
2322 lang_decl_name (tree decl, int v, bool translate)
2326 ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
2327 : decl_as_string (decl, TFF_DECL_SPECIFIERS));
2330 pp_translate_identifiers (cxx_pp) = translate;
2331 if (v == 1 && DECL_CLASS_SCOPE_P (decl))
2333 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2334 pp_cxx_colon_colon (cxx_pp);
2337 if (TREE_CODE (decl) == FUNCTION_DECL)
2338 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2340 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2342 return pp_formatted_text (cxx_pp);
2345 /* Return the location of a tree passed to %+ formats. */
2348 location_of (tree t)
2350 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2351 t = DECL_CONTEXT (t);
2352 else if (TYPE_P (t))
2353 t = TYPE_MAIN_DECL (t);
2354 else if (TREE_CODE (t) == OVERLOAD)
2355 t = OVL_FUNCTION (t);
2357 return DECL_SOURCE_LOCATION (t);
2360 /* Now the interfaces from error et al to dump_type et al. Each takes an
2361 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2365 decl_to_string (tree decl, int verbose)
2369 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2370 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2371 flags = TFF_CLASS_KEY_OR_ENUM;
2373 flags |= TFF_DECL_SPECIFIERS;
2374 else if (TREE_CODE (decl) == FUNCTION_DECL)
2375 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2376 flags |= TFF_TEMPLATE_HEADER;
2379 dump_decl (decl, flags);
2380 return pp_formatted_text (cxx_pp);
2384 expr_to_string (tree decl)
2387 dump_expr (decl, 0);
2388 return pp_formatted_text (cxx_pp);
2392 fndecl_to_string (tree fndecl, int verbose)
2396 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2397 | TFF_TEMPLATE_HEADER;
2399 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2401 dump_decl (fndecl, flags);
2402 return pp_formatted_text (cxx_pp);
2407 code_to_string (enum tree_code c)
2409 return tree_code_name [c];
2413 language_to_string (enum languages c)
2420 case lang_cplusplus:
2432 /* Return the proper printed version of a parameter to a C++ function. */
2435 parm_to_string (int p)
2439 pp_string (cxx_pp, "'this'");
2441 pp_decimal_int (cxx_pp, p + 1);
2442 return pp_formatted_text (cxx_pp);
2446 op_to_string (enum tree_code p)
2448 tree id = operator_name_info[(int) p].identifier;
2449 return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
2453 type_to_string (tree typ, int verbose)
2457 flags |= TFF_CLASS_KEY_OR_ENUM;
2458 flags |= TFF_TEMPLATE_HEADER;
2461 dump_type (typ, flags);
2462 return pp_formatted_text (cxx_pp);
2466 assop_to_string (enum tree_code p)
2468 tree id = assignment_operator_name_info[(int) p].identifier;
2469 return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
2473 args_to_string (tree p, int verbose)
2477 flags |= TFF_CLASS_KEY_OR_ENUM;
2482 if (TYPE_P (TREE_VALUE (p)))
2483 return type_as_string_translate (p, flags);
2486 for (; p; p = TREE_CHAIN (p))
2488 if (TREE_VALUE (p) == null_node)
2489 pp_cxx_ws_string (cxx_pp, "NULL");
2491 dump_type (error_type (TREE_VALUE (p)), flags);
2493 pp_separate_with_comma (cxx_pp);
2495 return pp_formatted_text (cxx_pp);
2499 cv_to_string (tree p, int v)
2502 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2503 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2504 return pp_formatted_text (cxx_pp);
2507 /* Langhook for print_error_function. */
2509 cxx_print_error_function (diagnostic_context *context, const char *file,
2510 diagnostic_info *diagnostic)
2512 lhd_print_error_function (context, file, diagnostic);
2513 pp_base_set_prefix (context->printer, file);
2514 maybe_print_instantiation_context (context);
2518 cp_diagnostic_starter (diagnostic_context *context,
2519 diagnostic_info *diagnostic)
2521 diagnostic_report_current_module (context);
2522 cp_print_error_function (context, diagnostic);
2523 maybe_print_instantiation_context (context);
2524 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2528 cp_diagnostic_finalizer (diagnostic_context *context,
2529 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2531 pp_base_destroy_prefix (context->printer);
2534 /* Print current function onto BUFFER, in the process of reporting
2535 a diagnostic message. Called from cp_diagnostic_starter. */
2537 cp_print_error_function (diagnostic_context *context,
2538 diagnostic_info *diagnostic)
2540 if (diagnostic_last_function_changed (context, diagnostic))
2542 const char *old_prefix = context->printer->prefix;
2543 const char *file = LOCATION_FILE (diagnostic->location);
2544 tree abstract_origin = diagnostic->abstract_origin;
2545 char *new_prefix = (file && abstract_origin == NULL)
2546 ? file_name_as_prefix (file) : NULL;
2548 pp_base_set_prefix (context->printer, new_prefix);
2550 if (current_function_decl == NULL)
2551 pp_base_string (context->printer, _("At global scope:"));
2556 if (abstract_origin)
2558 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2559 while (TREE_CODE (ao) == BLOCK
2560 && BLOCK_ABSTRACT_ORIGIN (ao)
2561 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2562 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2563 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2567 fndecl = current_function_decl;
2569 pp_printf (context->printer, function_category (fndecl),
2570 cxx_printable_name_translate (fndecl, 2));
2572 while (abstract_origin)
2575 tree block = abstract_origin;
2577 locus = &BLOCK_SOURCE_LOCATION (block);
2579 block = BLOCK_SUPERCONTEXT (block);
2580 while (block && TREE_CODE (block) == BLOCK
2581 && BLOCK_ABSTRACT_ORIGIN (block))
2583 ao = BLOCK_ABSTRACT_ORIGIN (block);
2585 while (TREE_CODE (ao) == BLOCK
2586 && BLOCK_ABSTRACT_ORIGIN (ao)
2587 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2588 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2590 if (TREE_CODE (ao) == FUNCTION_DECL)
2595 else if (TREE_CODE (ao) != BLOCK)
2598 block = BLOCK_SUPERCONTEXT (block);
2601 abstract_origin = block;
2604 while (block && TREE_CODE (block) == BLOCK)
2605 block = BLOCK_SUPERCONTEXT (block);
2607 if (TREE_CODE (block) == FUNCTION_DECL)
2609 abstract_origin = NULL;
2613 expanded_location s = expand_location (*locus);
2614 pp_base_character (context->printer, ',');
2615 pp_base_newline (context->printer);
2618 if (flag_show_column && s.column != 0)
2619 pp_printf (context->printer,
2620 _(" inlined from %qs at %s:%d:%d"),
2621 cxx_printable_name_translate (fndecl, 2),
2622 s.file, s.line, s.column);
2624 pp_printf (context->printer,
2625 _(" inlined from %qs at %s:%d"),
2626 cxx_printable_name_translate (fndecl, 2),
2631 pp_printf (context->printer, _(" inlined from %qs"),
2632 cxx_printable_name_translate (fndecl, 2));
2635 pp_base_character (context->printer, ':');
2637 pp_base_newline (context->printer);
2639 diagnostic_set_last_function (context, diagnostic);
2640 pp_base_destroy_prefix (context->printer);
2641 context->printer->prefix = old_prefix;
2645 /* Returns a description of FUNCTION using standard terminology. The
2646 result is a format string of the form "In CATEGORY %qs". */
2648 function_category (tree fn)
2650 if (DECL_FUNCTION_MEMBER_P (fn))
2652 if (DECL_STATIC_FUNCTION_P (fn))
2653 return _("In static member function %qs");
2654 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2655 return _("In copy constructor %qs");
2656 else if (DECL_CONSTRUCTOR_P (fn))
2657 return _("In constructor %qs");
2658 else if (DECL_DESTRUCTOR_P (fn))
2659 return _("In destructor %qs");
2661 return _("In member function %qs");
2664 return _("In function %qs");
2667 /* Report the full context of a current template instantiation,
2670 print_instantiation_full_context (diagnostic_context *context)
2672 struct tinst_level *p = current_instantiation ();
2673 location_t location = input_location;
2677 if (current_function_decl != p->decl
2678 && current_function_decl != NULL_TREE)
2679 /* We can get here during the processing of some synthesized
2680 method. Then, P->DECL will be the function that's causing
2685 if (current_function_decl == p->decl)
2686 /* Avoid redundancy with the "In function" line. */;
2688 pp_verbatim (context->printer,
2689 _("%s: In instantiation of %qs:\n"),
2690 LOCATION_FILE (location),
2691 decl_as_string_translate (p->decl,
2692 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2694 location = p->locus;
2699 print_instantiation_partial_context (context, p, location);
2702 /* Same as above but less verbose. */
2704 print_instantiation_partial_context (diagnostic_context *context,
2705 struct tinst_level *t, location_t loc)
2707 expanded_location xloc;
2708 for (; ; t = t->next)
2710 xloc = expand_location (loc);
2713 pp_verbatim (context->printer, _("%s:%d: instantiated from %qs\n"),
2714 xloc.file, xloc.line,
2715 decl_as_string_translate (t->decl,
2716 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2719 pp_verbatim (context->printer, _("%s:%d: instantiated from here"),
2720 xloc.file, xloc.line);
2721 pp_base_newline (context->printer);
2724 /* Called from cp_thing to print the template context for an error. */
2726 maybe_print_instantiation_context (diagnostic_context *context)
2728 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2731 record_last_problematic_instantiation ();
2732 print_instantiation_full_context (context);
2735 /* Report the bare minimum context of a template instantiation. */
2737 print_instantiation_context (void)
2739 print_instantiation_partial_context
2740 (global_dc, current_instantiation (), input_location);
2741 diagnostic_flush_buffer (global_dc);
2744 /* Called from output_format -- during diagnostic message processing --
2745 to handle C++ specific format specifier with the following meanings:
2746 %A function argument-list.
2750 %F function declaration.
2751 %L language as used in extern "lang".
2753 %P function parameter whose position is indicated by an integer.
2754 %Q assignment operator.
2758 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
2759 int precision, bool wide, bool set_locus, bool verbose)
2763 #define next_tree (t = va_arg (*text->args_ptr, tree))
2764 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
2765 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
2766 #define next_int va_arg (*text->args_ptr, int)
2768 if (precision != 0 || wide)
2771 if (text->locus == NULL)
2776 case 'A': result = args_to_string (next_tree, verbose); break;
2777 case 'C': result = code_to_string (next_tcode); break;
2780 tree temp = next_tree;
2782 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
2784 temp = DECL_DEBUG_EXPR (temp);
2787 result = expr_to_string (temp);
2791 result = decl_to_string (temp, verbose);
2794 case 'E': result = expr_to_string (next_tree); break;
2795 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2796 case 'L': result = language_to_string (next_lang); break;
2797 case 'O': result = op_to_string (next_tcode); break;
2798 case 'P': result = parm_to_string (next_int); break;
2799 case 'Q': result = assop_to_string (next_tcode); break;
2800 case 'T': result = type_to_string (next_tree, verbose); break;
2801 case 'V': result = cv_to_string (next_tree, verbose); break;
2807 pp_base_string (pp, result);
2808 if (set_locus && t != NULL)
2809 *text->locus = location_of (t);
2817 /* Warn about the use of C++0x features when appropriate. */
2819 maybe_warn_cpp0x (const char* str)
2821 if ((cxx_dialect == cxx98) && !in_system_header)
2822 /* We really want to suppress this warning in system headers,
2823 because libstdc++ uses variadic templates even when we aren't
2825 pedwarn (input_location, 0, "%s only available with -std=c++0x or -std=gnu++0x", str);
2828 /* Warn about the use of variadic templates when appropriate. */
2830 maybe_warn_variadic_templates (void)
2832 maybe_warn_cpp0x ("variadic templates");
2836 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
2837 option OPT with text GMSGID. Use this function to report
2838 diagnostics for constructs that are invalid C++98, but valid
2841 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
2843 diagnostic_info diagnostic;
2846 va_start (ap, gmsgid);
2847 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
2848 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
2849 diagnostic.option_index = opt;
2851 return report_diagnostic (&diagnostic);