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, int);
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, int flags)
168 tree inner_args = INNERMOST_TEMPLATE_ARGS (args);
169 int n = TREE_VEC_LENGTH (inner_args);
172 if (params == NULL_TREE
173 /* We use this flag when generating debug information. We don't
174 want to expand templates at this point, for this may generate
175 new decls, which gets decl counts out of sync, which may in
176 turn cause codegen differences between compilations with and
178 || (flags & TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS) != 0
179 || !flag_pretty_templates)
182 for (last = n - 1; last >= 0; --last)
184 tree param = TREE_VEC_ELT (params, last);
185 tree def = TREE_PURPOSE (param);
189 if (uses_template_parms (def))
191 ++processing_template_decl;
192 /* This speculative substitution must not cause any classes to be
193 instantiated that otherwise wouldn't be. */
194 def = tsubst_copy_and_build (def, args, tf_no_class_instantiations,
195 NULL_TREE, false, true);
196 --processing_template_decl;
198 if (!cp_tree_equal (TREE_VEC_ELT (inner_args, last), def))
205 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
209 dump_template_argument_list (tree args, tree parms, int flags)
211 int n = count_non_default_template_args (args, parms, flags);
215 for (i = 0; i < n; ++i)
217 tree arg = TREE_VEC_ELT (args, i);
219 /* Only print a comma if we know there is an argument coming. In
220 the case of an empty template argument pack, no actual
221 argument will be printed. */
223 && (!ARGUMENT_PACK_P (arg)
224 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
225 pp_separate_with_comma (cxx_pp);
227 dump_template_argument (arg, flags);
232 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
235 dump_template_parameter (tree parm, int flags)
240 if (parm == error_mark_node)
243 p = TREE_VALUE (parm);
244 a = TREE_PURPOSE (parm);
246 if (TREE_CODE (p) == TYPE_DECL)
248 if (flags & TFF_DECL_SPECIFIERS)
250 pp_cxx_ws_string (cxx_pp, "class");
251 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
252 pp_cxx_ws_string (cxx_pp, "...");
254 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
256 else if (DECL_NAME (p))
257 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
259 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
262 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
264 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
266 pp_cxx_whitespace (cxx_pp);
268 pp_cxx_whitespace (cxx_pp);
269 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
270 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
272 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
276 /* Dump, under control of FLAGS, a template-parameter-list binding.
277 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
281 dump_template_bindings (tree parms, tree args, VEC(tree,gc)* typenames)
289 tree p = TREE_VALUE (parms);
290 int lvl = TMPL_PARMS_DEPTH (parms);
293 tree lvl_args = NULL_TREE;
295 /* Don't crash if we had an invalid argument list. */
296 if (TMPL_ARGS_DEPTH (args) >= lvl)
297 lvl_args = TMPL_ARGS_LEVEL (args, lvl);
299 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
301 tree arg = NULL_TREE;
303 /* Don't crash if we had an invalid argument list. */
304 if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
305 arg = TREE_VEC_ELT (lvl_args, arg_idx);
308 pp_separate_with_comma (cxx_pp);
309 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
310 pp_cxx_whitespace (cxx_pp);
312 pp_cxx_whitespace (cxx_pp);
314 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
316 pp_string (cxx_pp, M_("<missing>"));
322 parms = TREE_CHAIN (parms);
325 for (i = 0; VEC_iterate (tree, typenames, i, t); ++i)
328 pp_separate_with_comma (cxx_pp);
329 dump_type (t, TFF_PLAIN_IDENTIFIER);
330 pp_cxx_whitespace (cxx_pp);
332 pp_cxx_whitespace (cxx_pp);
333 t = tsubst (t, args, tf_none, NULL_TREE);
334 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
335 pp_simple_type_specifier doesn't know about it. */
336 t = strip_typedefs (t);
337 dump_type (t, TFF_PLAIN_IDENTIFIER);
341 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
345 dump_type (tree t, int flags)
350 if (TYPE_PTRMEMFUNC_P (t))
353 switch (TREE_CODE (t))
356 if (t == init_list_type_node)
357 pp_string (cxx_pp, M_("<brace-enclosed initializer list>"));
359 pp_string (cxx_pp, M_("<unresolved overloaded function type>"));
363 /* A list of function parms. */
364 dump_parameters (t, flags);
367 case IDENTIFIER_NODE:
368 pp_cxx_tree_identifier (cxx_pp, t);
372 dump_type (BINFO_TYPE (t), flags);
378 dump_aggr_type (t, flags);
382 if (flags & TFF_CHASE_TYPEDEF)
384 dump_type (DECL_ORIGINAL_TYPE (t)
385 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
388 /* Else fall through. */
392 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
401 case FIXED_POINT_TYPE:
402 pp_type_specifier_seq (cxx_pp, t);
405 case TEMPLATE_TEMPLATE_PARM:
406 /* For parameters inside template signature. */
407 if (TYPE_IDENTIFIER (t))
408 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
410 pp_cxx_canonical_template_parameter (cxx_pp, t);
413 case BOUND_TEMPLATE_TEMPLATE_PARM:
415 tree args = TYPE_TI_ARGS (t);
416 pp_cxx_cv_qualifier_seq (cxx_pp, t);
417 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
418 pp_cxx_begin_template_argument_list (cxx_pp);
419 dump_template_argument_list (args, NULL_TREE, flags);
420 pp_cxx_end_template_argument_list (cxx_pp);
424 case TEMPLATE_TYPE_PARM:
425 pp_cxx_cv_qualifier_seq (cxx_pp, t);
426 if (TYPE_IDENTIFIER (t))
427 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
429 pp_cxx_canonical_template_parameter
430 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
433 /* This is not always necessary for pointers and such, but doing this
434 reduces code size. */
443 dump_type_prefix (t, flags);
444 dump_type_suffix (t, flags);
448 if (! (flags & TFF_CHASE_TYPEDEF)
449 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
451 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
454 pp_cxx_cv_qualifier_seq (cxx_pp, t);
455 pp_cxx_ws_string (cxx_pp,
456 TYPENAME_IS_ENUM_P (t) ? "enum"
457 : TYPENAME_IS_CLASS_P (t) ? "class"
459 dump_typename (t, flags);
462 case UNBOUND_CLASS_TEMPLATE:
463 dump_type (TYPE_CONTEXT (t), flags);
464 pp_cxx_colon_colon (cxx_pp);
465 pp_cxx_ws_string (cxx_pp, "template");
466 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
470 pp_cxx_ws_string (cxx_pp, "__typeof__");
471 pp_cxx_whitespace (cxx_pp);
472 pp_cxx_left_paren (cxx_pp);
473 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
474 pp_cxx_right_paren (cxx_pp);
477 case TYPE_PACK_EXPANSION:
478 dump_type (PACK_EXPANSION_PATTERN (t), flags);
479 pp_cxx_ws_string (cxx_pp, "...");
482 case TYPE_ARGUMENT_PACK:
483 dump_template_argument (t, flags);
487 pp_cxx_ws_string (cxx_pp, "decltype");
488 pp_cxx_whitespace (cxx_pp);
489 pp_cxx_left_paren (cxx_pp);
490 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
491 pp_cxx_right_paren (cxx_pp);
495 pp_unsupported_tree (cxx_pp, t);
496 /* Fall through to error. */
499 pp_string (cxx_pp, M_("<type error>"));
504 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
508 dump_typename (tree t, int flags)
510 tree ctx = TYPE_CONTEXT (t);
512 if (TREE_CODE (ctx) == TYPENAME_TYPE)
513 dump_typename (ctx, flags);
515 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
516 pp_cxx_colon_colon (cxx_pp);
517 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
520 /* Return the name of the supplied aggregate, or enumeral type. */
523 class_key_or_enum_as_string (tree t)
525 if (TREE_CODE (t) == ENUMERAL_TYPE)
527 if (SCOPED_ENUM_P (t))
532 else if (TREE_CODE (t) == UNION_TYPE)
534 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
540 /* Print out a class declaration T under the control of FLAGS,
541 in the form `class foo'. */
544 dump_aggr_type (tree t, int flags)
547 const char *variety = class_key_or_enum_as_string (t);
551 pp_cxx_cv_qualifier_seq (cxx_pp, t);
553 if (flags & TFF_CLASS_KEY_OR_ENUM)
554 pp_cxx_ws_string (cxx_pp, variety);
556 name = TYPE_NAME (t);
560 typdef = !DECL_ARTIFICIAL (name);
563 && ((flags & TFF_CHASE_TYPEDEF)
564 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
565 && DECL_TEMPLATE_INFO (name))))
567 t = TYPE_MAIN_VARIANT (t);
568 name = TYPE_NAME (t);
572 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
573 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
574 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
575 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
577 if (! (flags & TFF_UNQUALIFIED_NAME))
578 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
579 flags &= ~TFF_UNQUALIFIED_NAME;
582 /* Because the template names are mangled, we have to locate
583 the most general template, and use that name. */
584 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
586 while (DECL_TEMPLATE_INFO (tpl))
587 tpl = DECL_TI_TEMPLATE (tpl);
590 name = DECL_NAME (name);
593 if (name == 0 || ANON_AGGRNAME_P (name))
595 if (flags & TFF_CLASS_KEY_OR_ENUM)
596 pp_string (cxx_pp, M_("<anonymous>"));
598 pp_printf (pp_base (cxx_pp), M_("<anonymous %s>"), variety);
601 pp_cxx_tree_identifier (cxx_pp, name);
603 dump_template_parms (TYPE_TEMPLATE_INFO (t),
604 !CLASSTYPE_USE_TEMPLATE (t),
605 flags & ~TFF_TEMPLATE_HEADER);
608 /* Dump into the obstack the initial part of the output for a given type.
609 This is necessary when dealing with things like functions returning
612 return type of `int (* fee ())()': pointer -> function -> int. Both
613 pointer (and reference and offset) and function (and member) types must
614 deal with prefix and suffix.
616 Arrays must also do this for DECL nodes, like int a[], and for things like
620 dump_type_prefix (tree t, int flags)
622 if (TYPE_PTRMEMFUNC_P (t))
624 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
628 switch (TREE_CODE (t))
633 tree sub = TREE_TYPE (t);
635 dump_type_prefix (sub, flags);
636 if (TREE_CODE (sub) == ARRAY_TYPE
637 || TREE_CODE (sub) == FUNCTION_TYPE)
639 pp_cxx_whitespace (cxx_pp);
640 pp_cxx_left_paren (cxx_pp);
642 if (TREE_CODE (t) == POINTER_TYPE)
643 pp_character(cxx_pp, '*');
644 else if (TREE_CODE (t) == REFERENCE_TYPE)
646 if (TYPE_REF_IS_RVALUE (t))
647 pp_string (cxx_pp, "&&");
649 pp_character (cxx_pp, '&');
651 pp_base (cxx_pp)->padding = pp_before;
652 pp_cxx_cv_qualifier_seq (cxx_pp, t);
658 dump_type_prefix (TREE_TYPE (t), flags);
659 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
661 pp_maybe_space (cxx_pp);
662 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
663 pp_cxx_left_paren (cxx_pp);
664 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
665 pp_cxx_colon_colon (cxx_pp);
667 pp_cxx_star (cxx_pp);
668 pp_cxx_cv_qualifier_seq (cxx_pp, t);
669 pp_base (cxx_pp)->padding = pp_before;
672 /* This can be reached without a pointer when dealing with
673 templates, e.g. std::is_function. */
675 dump_type_prefix (TREE_TYPE (t), flags);
679 dump_type_prefix (TREE_TYPE (t), flags);
680 pp_maybe_space (cxx_pp);
681 pp_cxx_left_paren (cxx_pp);
682 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
683 pp_cxx_colon_colon (cxx_pp);
687 dump_type_prefix (TREE_TYPE (t), flags);
691 case IDENTIFIER_NODE:
696 case TEMPLATE_TYPE_PARM:
697 case TEMPLATE_TEMPLATE_PARM:
698 case BOUND_TEMPLATE_TEMPLATE_PARM:
710 case TYPE_PACK_EXPANSION:
711 case FIXED_POINT_TYPE:
712 dump_type (t, flags);
713 pp_base (cxx_pp)->padding = pp_before;
717 pp_unsupported_tree (cxx_pp, t);
720 pp_string (cxx_pp, M_("<typeprefixerror>"));
725 /* Dump the suffix of type T, under control of FLAGS. This is the part
726 which appears after the identifier (or function parms). */
729 dump_type_suffix (tree t, int flags)
731 if (TYPE_PTRMEMFUNC_P (t))
732 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
734 switch (TREE_CODE (t))
739 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
740 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
741 pp_cxx_right_paren (cxx_pp);
742 dump_type_suffix (TREE_TYPE (t), flags);
749 if (TREE_CODE (t) == METHOD_TYPE)
750 /* Can only be reached through a pointer. */
751 pp_cxx_right_paren (cxx_pp);
752 arg = TYPE_ARG_TYPES (t);
753 if (TREE_CODE (t) == METHOD_TYPE)
754 arg = TREE_CHAIN (arg);
756 /* Function pointers don't have default args. Not in standard C++,
757 anyway; they may in g++, but we'll just pretend otherwise. */
758 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
760 if (TREE_CODE (t) == METHOD_TYPE)
761 pp_cxx_cv_qualifier_seq
762 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
764 pp_cxx_cv_qualifier_seq (cxx_pp, t);
765 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
766 dump_type_suffix (TREE_TYPE (t), flags);
771 pp_maybe_space (cxx_pp);
772 pp_cxx_left_bracket (cxx_pp);
775 tree dtype = TYPE_DOMAIN (t);
776 tree max = TYPE_MAX_VALUE (dtype);
777 if (host_integerp (max, 0))
778 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
779 else if (TREE_CODE (max) == MINUS_EXPR)
780 dump_expr (TREE_OPERAND (max, 0),
781 flags & ~TFF_EXPR_IN_PARENS);
783 dump_expr (fold_build2_loc (input_location,
784 PLUS_EXPR, dtype, max,
785 build_int_cst (dtype, 1)),
786 flags & ~TFF_EXPR_IN_PARENS);
788 pp_cxx_right_bracket (cxx_pp);
789 dump_type_suffix (TREE_TYPE (t), flags);
793 case IDENTIFIER_NODE:
798 case TEMPLATE_TYPE_PARM:
799 case TEMPLATE_TEMPLATE_PARM:
800 case BOUND_TEMPLATE_TEMPLATE_PARM:
812 case TYPE_PACK_EXPANSION:
813 case FIXED_POINT_TYPE:
817 pp_unsupported_tree (cxx_pp, t);
819 /* Don't mark it here, we should have already done in
826 dump_global_iord (tree t)
828 const char *p = NULL;
830 if (DECL_GLOBAL_CTOR_P (t))
831 p = M_("(static initializers for %s)");
832 else if (DECL_GLOBAL_DTOR_P (t))
833 p = M_("(static destructors for %s)");
837 pp_printf (pp_base (cxx_pp), p, input_filename);
841 dump_simple_decl (tree t, tree type, int flags)
843 if (flags & TFF_DECL_SPECIFIERS)
845 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
846 pp_maybe_space (cxx_pp);
848 if (! (flags & TFF_UNQUALIFIED_NAME)
849 && (!DECL_INITIAL (t)
850 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
851 dump_scope (CP_DECL_CONTEXT (t), flags);
852 flags &= ~TFF_UNQUALIFIED_NAME;
853 if ((flags & TFF_DECL_SPECIFIERS)
854 && DECL_TEMPLATE_PARM_P (t)
855 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
856 pp_string (cxx_pp, "...");
858 dump_decl (DECL_NAME (t), flags);
860 pp_string (cxx_pp, M_("<anonymous>"));
861 if (flags & TFF_DECL_SPECIFIERS)
862 dump_type_suffix (type, flags);
865 /* Dump a human readable string for the decl T under control of FLAGS. */
868 dump_decl (tree t, int flags)
873 switch (TREE_CODE (t))
876 /* Don't say 'typedef class A' */
877 if (DECL_ARTIFICIAL (t) && !DECL_SELF_REFERENCE_P (t))
879 if ((flags & TFF_DECL_SPECIFIERS)
880 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
882 /* Say `class T' not just `T'. */
883 pp_cxx_ws_string (cxx_pp, "class");
885 /* Emit the `...' for a parameter pack. */
886 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
887 pp_cxx_ws_string (cxx_pp, "...");
890 dump_type (TREE_TYPE (t), flags);
893 if (flags & TFF_DECL_SPECIFIERS)
894 pp_cxx_ws_string (cxx_pp, "typedef");
895 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
896 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
901 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
903 pp_string (cxx_pp, M_("vtable for "));
904 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
905 dump_type (DECL_CONTEXT (t), flags);
908 /* Else fall through. */
911 dump_simple_decl (t, TREE_TYPE (t), flags);
915 pp_string (cxx_pp, M_("<return value> "));
916 dump_simple_decl (t, TREE_TYPE (t), flags);
920 if (flags & TFF_DECL_SPECIFIERS)
921 pp_cxx_declaration (cxx_pp, t);
924 if (! (flags & TFF_UNQUALIFIED_NAME))
925 dump_scope (CP_DECL_CONTEXT (t), flags);
926 flags &= ~TFF_UNQUALIFIED_NAME;
927 if (DECL_NAME (t) == NULL_TREE)
928 pp_string (cxx_pp, M_("<unnamed>"));
930 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
935 pp_expression (cxx_pp, t);
939 dump_decl (TREE_OPERAND (t, 0), flags);
940 pp_cxx_left_bracket (cxx_pp);
941 dump_decl (TREE_OPERAND (t, 1), flags);
942 pp_cxx_right_bracket (cxx_pp);
945 /* So that we can do dump_decl on an aggr type. */
949 dump_type (t, flags);
953 /* This is a pseudo destructor call which has not been folded into
954 a PSEUDO_DTOR_EXPR yet. */
955 pp_cxx_complement (cxx_pp);
956 dump_type (TREE_OPERAND (t, 0), flags);
963 /* These special cases are duplicated here so that other functions
964 can feed identifiers to error and get them demangled properly. */
965 case IDENTIFIER_NODE:
966 if (IDENTIFIER_TYPENAME_P (t))
968 pp_cxx_ws_string (cxx_pp, "operator");
969 /* Not exactly IDENTIFIER_TYPE_VALUE. */
970 dump_type (TREE_TYPE (t), flags);
974 pp_cxx_tree_identifier (cxx_pp, t);
981 if (DECL_CLASS_SCOPE_P (t))
983 dump_type (DECL_CONTEXT (t), flags);
984 pp_cxx_colon_colon (cxx_pp);
986 else if (DECL_CONTEXT (t))
988 dump_decl (DECL_CONTEXT (t), flags);
989 pp_cxx_colon_colon (cxx_pp);
991 dump_decl (DECL_NAME (t), flags);
995 /* If there's only one function, just treat it like an ordinary
1001 if (! DECL_LANG_SPECIFIC (t))
1002 pp_string (cxx_pp, M_("<built-in>"));
1003 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
1004 dump_global_iord (t);
1006 dump_function_decl (t, flags);
1010 dump_template_decl (t, flags);
1013 case TEMPLATE_ID_EXPR:
1015 tree name = TREE_OPERAND (t, 0);
1017 if (is_overloaded_fn (name))
1018 name = DECL_NAME (get_first_fn (name));
1019 dump_decl (name, flags);
1020 pp_cxx_begin_template_argument_list (cxx_pp);
1021 if (TREE_OPERAND (t, 1))
1022 dump_template_argument_list (TREE_OPERAND (t, 1), NULL_TREE, flags);
1023 pp_cxx_end_template_argument_list (cxx_pp);
1028 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1032 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1033 || (DECL_INITIAL (t) &&
1034 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1035 dump_simple_decl (t, TREE_TYPE (t), flags);
1036 else if (DECL_NAME (t))
1037 dump_decl (DECL_NAME (t), flags);
1038 else if (DECL_INITIAL (t))
1039 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1041 pp_string (cxx_pp, M_("<enumerator>"));
1045 pp_cxx_ws_string (cxx_pp, "using");
1046 dump_type (USING_DECL_SCOPE (t), flags);
1047 pp_cxx_colon_colon (cxx_pp);
1048 dump_decl (DECL_NAME (t), flags);
1052 pp_cxx_declaration (cxx_pp, t);
1056 dump_decl (BASELINK_FUNCTIONS (t), flags);
1059 case NON_DEPENDENT_EXPR:
1060 dump_expr (t, flags);
1063 case TEMPLATE_TYPE_PARM:
1064 if (flags & TFF_DECL_SPECIFIERS)
1065 pp_cxx_declaration (cxx_pp, t);
1067 pp_type_id (cxx_pp, t);
1070 case UNBOUND_CLASS_TEMPLATE:
1071 case TYPE_PACK_EXPANSION:
1073 dump_type (t, flags);
1077 pp_unsupported_tree (cxx_pp, t);
1078 /* Fall through to error. */
1081 pp_string (cxx_pp, M_("<declaration error>"));
1086 /* Dump a template declaration T under control of FLAGS. This means the
1087 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1090 dump_template_decl (tree t, int flags)
1092 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1096 if (flags & TFF_TEMPLATE_HEADER)
1098 for (parms = orig_parms = nreverse (orig_parms);
1100 parms = TREE_CHAIN (parms))
1102 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1103 int len = TREE_VEC_LENGTH (inner_parms);
1105 pp_cxx_ws_string (cxx_pp, "template");
1106 pp_cxx_begin_template_argument_list (cxx_pp);
1108 /* If we've shown the template prefix, we'd better show the
1109 parameters' and decl's type too. */
1110 flags |= TFF_DECL_SPECIFIERS;
1112 for (i = 0; i < len; i++)
1115 pp_separate_with_comma (cxx_pp);
1116 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1118 pp_cxx_end_template_argument_list (cxx_pp);
1119 pp_cxx_whitespace (cxx_pp);
1121 nreverse(orig_parms);
1123 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1125 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1126 pp_cxx_ws_string (cxx_pp, "class");
1128 /* If this is a parameter pack, print the ellipsis. */
1129 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1130 pp_cxx_ws_string (cxx_pp, "...");
1134 if (DECL_TEMPLATE_RESULT (t)
1135 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1136 dump_type (TREE_TYPE (t),
1137 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1138 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1139 else if (DECL_TEMPLATE_RESULT (t)
1140 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1141 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1144 gcc_assert (TREE_TYPE (t));
1145 switch (NEXT_CODE (t))
1149 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1152 /* This case can occur with some invalid code. */
1153 dump_type (TREE_TYPE (t),
1154 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1155 | (flags & TFF_DECL_SPECIFIERS
1156 ? TFF_CLASS_KEY_OR_ENUM : 0));
1161 /* find_typenames looks through the type of the function template T
1162 and returns a VEC containing any typedefs or TYPENAME_TYPEs it finds. */
1164 struct find_typenames_t
1166 struct pointer_set_t *p_set;
1167 VEC (tree,gc) *typenames;
1171 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1173 struct find_typenames_t *d = (struct find_typenames_t *)data;
1174 tree mv = NULL_TREE;
1176 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1177 /* Add the type of the typedef without any additional cv-quals. */
1178 mv = TREE_TYPE (TYPE_NAME (*tp));
1179 else if (TREE_CODE (*tp) == TYPENAME_TYPE)
1180 /* Add the typename without any cv-qualifiers. */
1181 mv = TYPE_MAIN_VARIANT (*tp);
1183 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1184 VEC_safe_push (tree, gc, d->typenames, mv);
1186 /* Search into class template arguments, which cp_walk_subtrees
1188 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1189 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1195 static VEC(tree,gc) *
1196 find_typenames (tree t)
1198 struct find_typenames_t ft;
1199 ft.p_set = pointer_set_create ();
1200 ft.typenames = NULL;
1201 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1202 find_typenames_r, &ft, ft.p_set);
1203 pointer_set_destroy (ft.p_set);
1204 return ft.typenames;
1207 /* Pretty print a function decl. There are several ways we want to print a
1208 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1209 As error can only apply the '#' flag once to give 0 and 1 for V, there
1210 is %D which doesn't print the throw specs, and %F which does. */
1213 dump_function_decl (tree t, int flags)
1217 tree cname = NULL_TREE;
1218 tree template_args = NULL_TREE;
1219 tree template_parms = NULL_TREE;
1220 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1221 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1223 VEC(tree,gc) *typenames = NULL;
1225 flags &= ~TFF_UNQUALIFIED_NAME;
1226 if (TREE_CODE (t) == TEMPLATE_DECL)
1227 t = DECL_TEMPLATE_RESULT (t);
1229 /* Save the exceptions, in case t is a specialization and we are
1230 emitting an error about incompatible specifications. */
1231 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1233 /* Pretty print template instantiations only. */
1234 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1235 && flag_pretty_templates)
1239 template_args = DECL_TI_ARGS (t);
1240 tmpl = most_general_template (t);
1241 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1243 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1245 typenames = find_typenames (t);
1249 fntype = TREE_TYPE (t);
1250 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1252 if (DECL_CLASS_SCOPE_P (t))
1253 cname = DECL_CONTEXT (t);
1254 /* This is for partially instantiated template methods. */
1255 else if (TREE_CODE (fntype) == METHOD_TYPE)
1256 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1258 if (!(flags & TFF_DECL_SPECIFIERS))
1260 else if (DECL_STATIC_FUNCTION_P (t))
1261 pp_cxx_ws_string (cxx_pp, "static");
1262 else if (DECL_VIRTUAL_P (t))
1263 pp_cxx_ws_string (cxx_pp, "virtual");
1265 /* Print the return type? */
1267 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1268 && !DECL_DESTRUCTOR_P (t);
1270 dump_type_prefix (TREE_TYPE (fntype), flags);
1272 /* Print the function name. */
1273 if (!do_outer_scope)
1277 dump_type (cname, flags);
1278 pp_cxx_colon_colon (cxx_pp);
1281 dump_scope (CP_DECL_CONTEXT (t), flags);
1283 dump_function_name (t, flags);
1285 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1287 dump_parameters (parmtypes, flags);
1289 if (TREE_CODE (fntype) == METHOD_TYPE)
1291 pp_base (cxx_pp)->padding = pp_before;
1292 pp_cxx_cv_qualifier_seq
1293 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1296 if (flags & TFF_EXCEPTION_SPECIFICATION)
1298 pp_base (cxx_pp)->padding = pp_before;
1299 dump_exception_spec (exceptions, flags);
1303 dump_type_suffix (TREE_TYPE (fntype), flags);
1306 /* If T is a template instantiation, dump the parameter binding. */
1307 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1309 pp_cxx_whitespace (cxx_pp);
1310 pp_cxx_left_bracket (cxx_pp);
1311 pp_cxx_ws_string (cxx_pp, M_("with"));
1312 pp_cxx_whitespace (cxx_pp);
1313 dump_template_bindings (template_parms, template_args, typenames);
1314 pp_cxx_right_bracket (cxx_pp);
1318 /* Print a parameter list. If this is for a member function, the
1319 member object ptr (and any other hidden args) should have
1320 already been removed. */
1323 dump_parameters (tree parmtypes, int flags)
1326 pp_cxx_left_paren (cxx_pp);
1328 for (first = 1; parmtypes != void_list_node;
1329 parmtypes = TREE_CHAIN (parmtypes))
1332 pp_separate_with_comma (cxx_pp);
1336 pp_cxx_ws_string (cxx_pp, "...");
1340 dump_type (TREE_VALUE (parmtypes), flags);
1342 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1344 pp_cxx_whitespace (cxx_pp);
1346 pp_cxx_whitespace (cxx_pp);
1347 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1351 pp_cxx_right_paren (cxx_pp);
1354 /* Print an exception specification. T is the exception specification. */
1357 dump_exception_spec (tree t, int flags)
1361 pp_cxx_ws_string (cxx_pp, "throw");
1362 pp_cxx_whitespace (cxx_pp);
1363 pp_cxx_left_paren (cxx_pp);
1364 if (TREE_VALUE (t) != NULL_TREE)
1367 dump_type (TREE_VALUE (t), flags);
1371 pp_separate_with_comma (cxx_pp);
1373 pp_cxx_right_paren (cxx_pp);
1377 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1378 and destructors properly. */
1381 dump_function_name (tree t, int flags)
1383 tree name = DECL_NAME (t);
1385 /* We can get here with a decl that was synthesized by language-
1386 independent machinery (e.g. coverage.c) in which case it won't
1387 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1388 will crash. In this case it is safe just to print out the
1390 if (!DECL_LANG_SPECIFIC (t))
1392 pp_cxx_tree_identifier (cxx_pp, name);
1396 if (TREE_CODE (t) == TEMPLATE_DECL)
1397 t = DECL_TEMPLATE_RESULT (t);
1399 /* Don't let the user see __comp_ctor et al. */
1400 if (DECL_CONSTRUCTOR_P (t)
1401 || DECL_DESTRUCTOR_P (t))
1402 name = constructor_name (DECL_CONTEXT (t));
1404 if (DECL_DESTRUCTOR_P (t))
1406 pp_cxx_complement (cxx_pp);
1407 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1409 else if (DECL_CONV_FN_P (t))
1411 /* This cannot use the hack that the operator's return
1412 type is stashed off of its name because it may be
1413 used for error reporting. In the case of conflicting
1414 declarations, both will have the same name, yet
1415 the types will be different, hence the TREE_TYPE field
1416 of the first name will be clobbered by the second. */
1417 pp_cxx_ws_string (cxx_pp, "operator");
1418 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1420 else if (name && IDENTIFIER_OPNAME_P (name))
1421 pp_cxx_tree_identifier (cxx_pp, name);
1423 dump_decl (name, flags);
1425 if (DECL_TEMPLATE_INFO (t)
1426 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1427 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1428 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1429 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1432 /* Dump the template parameters from the template info INFO under control of
1433 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1434 specialization (partial or complete). For partial specializations we show
1435 the specialized parameter values. For a primary template we show no
1439 dump_template_parms (tree info, int primary, int flags)
1441 tree args = info ? TI_ARGS (info) : NULL_TREE;
1443 if (primary && flags & TFF_TEMPLATE_NAME)
1445 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1446 pp_cxx_begin_template_argument_list (cxx_pp);
1448 /* Be careful only to print things when we have them, so as not
1449 to crash producing error messages. */
1450 if (args && !primary)
1453 /* We don't know the parms for a friend template specialization. */
1454 tree params = (TREE_CODE (TI_TEMPLATE (info)) == TEMPLATE_DECL
1455 ? DECL_INNERMOST_TEMPLATE_PARMS (TI_TEMPLATE (info))
1458 len = count_non_default_template_args (args, params, flags);
1460 args = INNERMOST_TEMPLATE_ARGS (args);
1461 for (ix = 0; ix != len; ix++)
1463 tree arg = TREE_VEC_ELT (args, ix);
1465 /* Only print a comma if we know there is an argument coming. In
1466 the case of an empty template argument pack, no actual
1467 argument will be printed. */
1469 && (!ARGUMENT_PACK_P (arg)
1470 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1471 pp_separate_with_comma (cxx_pp);
1474 pp_string (cxx_pp, M_("<template parameter error>"));
1476 dump_template_argument (arg, flags);
1481 tree tpl = TI_TEMPLATE (info);
1482 tree parms = DECL_TEMPLATE_PARMS (tpl);
1485 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1486 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1488 for (ix = 0; ix != len; ix++)
1492 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1494 pp_string (cxx_pp, M_("<template parameter error>"));
1498 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1501 pp_separate_with_comma (cxx_pp);
1503 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1506 pp_cxx_end_template_argument_list (cxx_pp);
1509 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1510 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1513 dump_call_expr_args (tree t, int flags, bool skipfirst)
1516 call_expr_arg_iterator iter;
1518 pp_cxx_left_paren (cxx_pp);
1519 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1525 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1526 if (more_call_expr_args_p (&iter))
1527 pp_separate_with_comma (cxx_pp);
1530 pp_cxx_right_paren (cxx_pp);
1533 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1534 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1538 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1541 aggr_init_expr_arg_iterator iter;
1543 pp_cxx_left_paren (cxx_pp);
1544 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1550 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1551 if (more_aggr_init_expr_args_p (&iter))
1552 pp_separate_with_comma (cxx_pp);
1555 pp_cxx_right_paren (cxx_pp);
1558 /* Print out a list of initializers (subr of dump_expr). */
1561 dump_expr_list (tree l, int flags)
1565 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1568 pp_separate_with_comma (cxx_pp);
1572 /* Print out a vector of initializers (subr of dump_expr). */
1575 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1577 unsigned HOST_WIDE_INT idx;
1580 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1582 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1583 if (idx != VEC_length (constructor_elt, v) - 1)
1584 pp_separate_with_comma (cxx_pp);
1589 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1590 function. Resolve it to a close relative -- in the sense of static
1591 type -- variant being overridden. That is close to what was written in
1592 the source code. Subroutine of dump_expr. */
1595 resolve_virtual_fun_from_obj_type_ref (tree ref)
1597 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1598 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1599 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1602 fun = TREE_CHAIN (fun);
1603 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1604 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1610 /* Print out an expression E under control of FLAGS. */
1613 dump_expr (tree t, int flags)
1618 if (STATEMENT_CLASS_P (t))
1620 pp_cxx_ws_string (cxx_pp, M_("<statement>"));
1624 switch (TREE_CODE (t))
1632 case NAMESPACE_DECL:
1635 case IDENTIFIER_NODE:
1636 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1643 pp_constant (cxx_pp, t);
1647 /* While waiting for caret diagnostics, avoid printing
1648 __cxa_allocate_exception, __cxa_throw, and the like. */
1649 pp_cxx_ws_string (cxx_pp, M_("<throw-expression>"));
1653 pp_ampersand (cxx_pp);
1654 dump_type (PTRMEM_CST_CLASS (t), flags);
1655 pp_cxx_colon_colon (cxx_pp);
1656 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1660 pp_cxx_left_paren (cxx_pp);
1661 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1662 pp_separate_with_comma (cxx_pp);
1663 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1664 pp_cxx_right_paren (cxx_pp);
1668 pp_cxx_left_paren (cxx_pp);
1669 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1670 pp_string (cxx_pp, " ? ");
1671 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1672 pp_string (cxx_pp, " : ");
1673 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1674 pp_cxx_right_paren (cxx_pp);
1678 if (TREE_HAS_CONSTRUCTOR (t))
1680 pp_cxx_ws_string (cxx_pp, "new");
1681 pp_cxx_whitespace (cxx_pp);
1682 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1685 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1688 case AGGR_INIT_EXPR:
1690 tree fn = NULL_TREE;
1692 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1693 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1695 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1697 if (DECL_CONSTRUCTOR_P (fn))
1698 dump_type (DECL_CONTEXT (fn), flags);
1703 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1705 dump_aggr_init_expr_args (t, flags, true);
1710 tree fn = CALL_EXPR_FN (t);
1711 bool skipfirst = false;
1713 if (TREE_CODE (fn) == ADDR_EXPR)
1714 fn = TREE_OPERAND (fn, 0);
1716 /* Nobody is interested in seeing the guts of vcalls. */
1717 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1718 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1720 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1722 tree ob = CALL_EXPR_ARG (t, 0);
1723 if (TREE_CODE (ob) == ADDR_EXPR)
1725 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1726 pp_cxx_dot (cxx_pp);
1728 else if (TREE_CODE (ob) != PARM_DECL
1729 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1731 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1732 pp_cxx_arrow (cxx_pp);
1736 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1737 dump_call_expr_args (t, flags, skipfirst);
1742 /* Note that this only works for G++ target exprs. If somebody
1743 builds a general TARGET_EXPR, there's no way to represent that
1744 it initializes anything other that the parameter slot for the
1745 default argument. Note we may have cleared out the first
1746 operand in expand_expr, so don't go killing ourselves. */
1747 if (TREE_OPERAND (t, 1))
1748 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1751 case POINTER_PLUS_EXPR:
1752 dump_binary_op ("+", t, flags);
1760 case TRUNC_DIV_EXPR:
1761 case TRUNC_MOD_EXPR:
1769 case TRUTH_ANDIF_EXPR:
1770 case TRUTH_ORIF_EXPR:
1777 case EXACT_DIV_EXPR:
1778 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1782 case FLOOR_DIV_EXPR:
1783 case ROUND_DIV_EXPR:
1785 dump_binary_op ("/", t, flags);
1789 case FLOOR_MOD_EXPR:
1790 case ROUND_MOD_EXPR:
1791 dump_binary_op ("%", t, flags);
1796 tree ob = TREE_OPERAND (t, 0);
1797 if (TREE_CODE (ob) == INDIRECT_REF)
1799 ob = TREE_OPERAND (ob, 0);
1800 if (TREE_CODE (ob) != PARM_DECL
1802 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1804 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1805 pp_cxx_arrow (cxx_pp);
1810 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1811 pp_cxx_dot (cxx_pp);
1813 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1818 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1819 pp_cxx_left_bracket (cxx_pp);
1820 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1821 pp_cxx_right_bracket (cxx_pp);
1824 case UNARY_PLUS_EXPR:
1825 dump_unary_op ("+", t, flags);
1829 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1830 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1831 /* An ADDR_EXPR can have reference type. In that case, we
1832 shouldn't print the `&' doing so indicates to the user
1833 that the expression has pointer type. */
1835 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1836 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1837 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1838 dump_unary_op ("&&", t, flags);
1840 dump_unary_op ("&", t, flags);
1844 if (TREE_HAS_CONSTRUCTOR (t))
1846 t = TREE_OPERAND (t, 0);
1847 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1848 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1849 dump_call_expr_args (t, flags, true);
1853 if (TREE_OPERAND (t,0) != NULL_TREE
1854 && TREE_TYPE (TREE_OPERAND (t, 0))
1855 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1856 dump_expr (TREE_OPERAND (t, 0), flags);
1858 dump_unary_op ("*", t, flags);
1864 case TRUTH_NOT_EXPR:
1865 case PREDECREMENT_EXPR:
1866 case PREINCREMENT_EXPR:
1867 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1870 case POSTDECREMENT_EXPR:
1871 case POSTINCREMENT_EXPR:
1872 pp_cxx_left_paren (cxx_pp);
1873 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1874 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1875 pp_cxx_right_paren (cxx_pp);
1878 case NON_LVALUE_EXPR:
1879 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1880 should be another level of INDIRECT_REF so that I don't have to do
1882 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1884 tree next = TREE_TYPE (TREE_TYPE (t));
1886 while (TREE_CODE (next) == POINTER_TYPE)
1887 next = TREE_TYPE (next);
1889 if (TREE_CODE (next) == FUNCTION_TYPE)
1891 if (flags & TFF_EXPR_IN_PARENS)
1892 pp_cxx_left_paren (cxx_pp);
1893 pp_cxx_star (cxx_pp);
1894 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1895 if (flags & TFF_EXPR_IN_PARENS)
1896 pp_cxx_right_paren (cxx_pp);
1899 /* Else fall through. */
1901 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1905 case VIEW_CONVERT_EXPR:
1907 tree op = TREE_OPERAND (t, 0);
1909 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1911 /* It is a cast, but we cannot tell whether it is a
1912 reinterpret or static cast. Use the C style notation. */
1913 if (flags & TFF_EXPR_IN_PARENS)
1914 pp_cxx_left_paren (cxx_pp);
1915 pp_cxx_left_paren (cxx_pp);
1916 dump_type (TREE_TYPE (t), flags);
1917 pp_cxx_right_paren (cxx_pp);
1918 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1919 if (flags & TFF_EXPR_IN_PARENS)
1920 pp_cxx_right_paren (cxx_pp);
1923 dump_expr (op, flags);
1928 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1930 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1932 if (integer_zerop (idx))
1934 /* A NULL pointer-to-member constant. */
1935 pp_cxx_left_paren (cxx_pp);
1936 pp_cxx_left_paren (cxx_pp);
1937 dump_type (TREE_TYPE (t), flags);
1938 pp_cxx_right_paren (cxx_pp);
1939 pp_character (cxx_pp, '0');
1940 pp_cxx_right_paren (cxx_pp);
1943 else if (host_integerp (idx, 0))
1946 unsigned HOST_WIDE_INT n;
1948 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1949 t = TYPE_METHOD_BASETYPE (t);
1950 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1952 n = tree_low_cst (idx, 0);
1954 /* Map vtable index back one, to allow for the null pointer to
1958 while (n > 0 && virtuals)
1961 virtuals = TREE_CHAIN (virtuals);
1965 dump_expr (BV_FN (virtuals),
1966 flags | TFF_EXPR_IN_PARENS);
1971 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
1973 dump_type (TREE_TYPE (t), 0);
1974 pp_cxx_left_paren (cxx_pp);
1975 pp_cxx_right_paren (cxx_pp);
1979 pp_cxx_left_brace (cxx_pp);
1980 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
1981 pp_cxx_right_brace (cxx_pp);
1988 tree ob = TREE_OPERAND (t, 0);
1989 if (is_dummy_object (ob))
1991 t = TREE_OPERAND (t, 1);
1992 if (TREE_CODE (t) == FUNCTION_DECL)
1994 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
1995 else if (BASELINK_P (t))
1996 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
1997 flags | TFF_EXPR_IN_PARENS);
1999 dump_decl (t, flags);
2003 if (TREE_CODE (ob) == INDIRECT_REF)
2005 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
2006 pp_cxx_arrow (cxx_pp);
2007 pp_cxx_star (cxx_pp);
2011 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
2012 pp_cxx_dot (cxx_pp);
2013 pp_cxx_star (cxx_pp);
2015 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2020 case TEMPLATE_PARM_INDEX:
2021 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2025 if (TREE_OPERAND (t, 0) == NULL_TREE
2026 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2028 dump_type (TREE_TYPE (t), flags);
2029 pp_cxx_left_paren (cxx_pp);
2030 dump_expr_list (TREE_OPERAND (t, 0), flags);
2031 pp_cxx_right_paren (cxx_pp);
2035 pp_cxx_left_paren (cxx_pp);
2036 dump_type (TREE_TYPE (t), flags);
2037 pp_cxx_right_paren (cxx_pp);
2038 pp_cxx_left_paren (cxx_pp);
2039 dump_expr_list (TREE_OPERAND (t, 0), flags);
2040 pp_cxx_right_paren (cxx_pp);
2044 case STATIC_CAST_EXPR:
2045 pp_cxx_ws_string (cxx_pp, "static_cast");
2047 case REINTERPRET_CAST_EXPR:
2048 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2050 case CONST_CAST_EXPR:
2051 pp_cxx_ws_string (cxx_pp, "const_cast");
2053 case DYNAMIC_CAST_EXPR:
2054 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2056 pp_cxx_begin_template_argument_list (cxx_pp);
2057 dump_type (TREE_TYPE (t), flags);
2058 pp_cxx_end_template_argument_list (cxx_pp);
2059 pp_cxx_left_paren (cxx_pp);
2060 dump_expr (TREE_OPERAND (t, 0), flags);
2061 pp_cxx_right_paren (cxx_pp);
2065 dump_expr (TREE_OPERAND (t, 0), flags);
2066 pp_cxx_arrow (cxx_pp);
2071 if (TREE_CODE (t) == SIZEOF_EXPR)
2072 pp_cxx_ws_string (cxx_pp, "sizeof");
2075 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2076 pp_cxx_ws_string (cxx_pp, "__alignof__");
2078 pp_cxx_whitespace (cxx_pp);
2079 pp_cxx_left_paren (cxx_pp);
2080 if (TYPE_P (TREE_OPERAND (t, 0)))
2081 dump_type (TREE_OPERAND (t, 0), flags);
2083 dump_expr (TREE_OPERAND (t, 0), flags);
2084 pp_cxx_right_paren (cxx_pp);
2089 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2090 pp_cxx_whitespace (cxx_pp);
2091 dump_expr (TREE_OPERAND (t, 0), flags);
2095 pp_string (cxx_pp, M_("<unparsed>"));
2098 case TRY_CATCH_EXPR:
2099 case WITH_CLEANUP_EXPR:
2100 case CLEANUP_POINT_EXPR:
2101 dump_expr (TREE_OPERAND (t, 0), flags);
2104 case PSEUDO_DTOR_EXPR:
2105 dump_expr (TREE_OPERAND (t, 2), flags);
2106 pp_cxx_dot (cxx_pp);
2107 dump_type (TREE_OPERAND (t, 0), flags);
2108 pp_cxx_colon_colon (cxx_pp);
2109 pp_cxx_complement (cxx_pp);
2110 dump_type (TREE_OPERAND (t, 1), flags);
2113 case TEMPLATE_ID_EXPR:
2114 dump_decl (t, flags);
2120 case STATEMENT_LIST:
2121 /* We don't yet have a way of dumping statements in a
2122 human-readable format. */
2123 pp_string (cxx_pp, "({...})");
2127 pp_string (cxx_pp, "while (1) { ");
2128 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2129 pp_cxx_right_brace (cxx_pp);
2133 pp_string (cxx_pp, "if (");
2134 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2135 pp_string (cxx_pp, ") break; ");
2139 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2142 case EMPTY_CLASS_EXPR:
2143 dump_type (TREE_TYPE (t), flags);
2144 pp_cxx_left_paren (cxx_pp);
2145 pp_cxx_right_paren (cxx_pp);
2148 case NON_DEPENDENT_EXPR:
2149 dump_expr (TREE_OPERAND (t, 0), flags);
2152 case ARGUMENT_PACK_SELECT:
2153 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2165 pp_type_specifier_seq (cxx_pp, t);
2169 /* We get here when we want to print a dependent type as an
2170 id-expression, without any disambiguator decoration. */
2171 pp_id_expression (cxx_pp, t);
2174 case TEMPLATE_TYPE_PARM:
2175 case BOUND_TEMPLATE_TEMPLATE_PARM:
2176 dump_type (t, flags);
2180 pp_cxx_trait_expression (cxx_pp, t);
2184 pp_cxx_va_arg_expression (cxx_pp, t);
2188 pp_cxx_offsetof_expression (cxx_pp, t);
2192 case EXPR_PACK_EXPANSION:
2199 case VEC_DELETE_EXPR:
2205 case UNORDERED_EXPR:
2215 case FIX_TRUNC_EXPR:
2217 pp_expression (cxx_pp, t);
2220 case TRUTH_AND_EXPR:
2222 case TRUTH_XOR_EXPR:
2223 if (flags & TFF_EXPR_IN_PARENS)
2224 pp_cxx_left_paren (cxx_pp);
2225 pp_expression (cxx_pp, t);
2226 if (flags & TFF_EXPR_IN_PARENS)
2227 pp_cxx_right_paren (cxx_pp);
2231 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2234 /* This list is incomplete, but should suffice for now.
2235 It is very important that `sorry' does not call
2236 `report_error_function'. That could cause an infinite loop. */
2238 pp_unsupported_tree (cxx_pp, t);
2239 /* fall through to ERROR_MARK... */
2241 pp_string (cxx_pp, M_("<expression error>"));
2247 dump_binary_op (const char *opstring, tree t, int flags)
2249 pp_cxx_left_paren (cxx_pp);
2250 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2251 pp_cxx_whitespace (cxx_pp);
2253 pp_cxx_ws_string (cxx_pp, opstring);
2255 pp_string (cxx_pp, M_("<unknown operator>"));
2256 pp_cxx_whitespace (cxx_pp);
2257 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2258 pp_cxx_right_paren (cxx_pp);
2262 dump_unary_op (const char *opstring, tree t, int flags)
2264 if (flags & TFF_EXPR_IN_PARENS)
2265 pp_cxx_left_paren (cxx_pp);
2266 pp_cxx_ws_string (cxx_pp, opstring);
2267 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2268 if (flags & TFF_EXPR_IN_PARENS)
2269 pp_cxx_right_paren (cxx_pp);
2273 reinit_cxx_pp (void)
2275 pp_clear_output_area (cxx_pp);
2276 pp_base (cxx_pp)->padding = pp_none;
2277 pp_indentation (cxx_pp) = 0;
2278 pp_needs_newline (cxx_pp) = false;
2279 cxx_pp->enclosing_scope = current_function_decl;
2283 /* Exported interface to stringifying types, exprs and decls under TFF_*
2287 type_as_string (tree typ, int flags)
2290 pp_translate_identifiers (cxx_pp) = false;
2291 dump_type (typ, flags);
2292 return pp_formatted_text (cxx_pp);
2296 type_as_string_translate (tree typ, int flags)
2299 dump_type (typ, flags);
2300 return pp_formatted_text (cxx_pp);
2304 expr_as_string (tree decl, int flags)
2307 pp_translate_identifiers (cxx_pp) = false;
2308 dump_expr (decl, flags);
2309 return pp_formatted_text (cxx_pp);
2313 decl_as_string (tree decl, int flags)
2316 pp_translate_identifiers (cxx_pp) = false;
2317 dump_decl (decl, flags);
2318 return pp_formatted_text (cxx_pp);
2322 decl_as_string_translate (tree decl, int flags)
2325 dump_decl (decl, flags);
2326 return pp_formatted_text (cxx_pp);
2329 /* Generate the three forms of printable names for cxx_printable_name. */
2332 lang_decl_name (tree decl, int v, bool translate)
2336 ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
2337 : decl_as_string (decl, TFF_DECL_SPECIFIERS));
2340 pp_translate_identifiers (cxx_pp) = translate;
2342 && (DECL_CLASS_SCOPE_P (decl)
2343 || (DECL_NAMESPACE_SCOPE_P (decl)
2344 && CP_DECL_CONTEXT (decl) != global_namespace)))
2346 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2347 pp_cxx_colon_colon (cxx_pp);
2350 if (TREE_CODE (decl) == FUNCTION_DECL)
2351 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2353 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2355 return pp_formatted_text (cxx_pp);
2358 /* Return the location of a tree passed to %+ formats. */
2361 location_of (tree t)
2363 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2364 t = DECL_CONTEXT (t);
2365 else if (TYPE_P (t))
2366 t = TYPE_MAIN_DECL (t);
2367 else if (TREE_CODE (t) == OVERLOAD)
2368 t = OVL_FUNCTION (t);
2370 return DECL_SOURCE_LOCATION (t);
2373 /* Now the interfaces from error et al to dump_type et al. Each takes an
2374 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2378 decl_to_string (tree decl, int verbose)
2382 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2383 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2384 flags = TFF_CLASS_KEY_OR_ENUM;
2386 flags |= TFF_DECL_SPECIFIERS;
2387 else if (TREE_CODE (decl) == FUNCTION_DECL)
2388 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2389 flags |= TFF_TEMPLATE_HEADER;
2392 dump_decl (decl, flags);
2393 return pp_formatted_text (cxx_pp);
2397 expr_to_string (tree decl)
2400 dump_expr (decl, 0);
2401 return pp_formatted_text (cxx_pp);
2405 fndecl_to_string (tree fndecl, int verbose)
2409 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2410 | TFF_TEMPLATE_HEADER;
2412 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2414 dump_decl (fndecl, flags);
2415 return pp_formatted_text (cxx_pp);
2420 code_to_string (enum tree_code c)
2422 return tree_code_name [c];
2426 language_to_string (enum languages c)
2433 case lang_cplusplus:
2445 /* Return the proper printed version of a parameter to a C++ function. */
2448 parm_to_string (int p)
2452 pp_string (cxx_pp, "'this'");
2454 pp_decimal_int (cxx_pp, p + 1);
2455 return pp_formatted_text (cxx_pp);
2459 op_to_string (enum tree_code p)
2461 tree id = operator_name_info[(int) p].identifier;
2462 return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
2466 type_to_string (tree typ, int verbose)
2470 flags |= TFF_CLASS_KEY_OR_ENUM;
2471 flags |= TFF_TEMPLATE_HEADER;
2474 dump_type (typ, flags);
2475 return pp_formatted_text (cxx_pp);
2479 assop_to_string (enum tree_code p)
2481 tree id = assignment_operator_name_info[(int) p].identifier;
2482 return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
2486 args_to_string (tree p, int verbose)
2490 flags |= TFF_CLASS_KEY_OR_ENUM;
2495 if (TYPE_P (TREE_VALUE (p)))
2496 return type_as_string_translate (p, flags);
2499 for (; p; p = TREE_CHAIN (p))
2501 if (TREE_VALUE (p) == null_node)
2502 pp_cxx_ws_string (cxx_pp, "NULL");
2504 dump_type (error_type (TREE_VALUE (p)), flags);
2506 pp_separate_with_comma (cxx_pp);
2508 return pp_formatted_text (cxx_pp);
2512 cv_to_string (tree p, int v)
2515 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2516 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2517 return pp_formatted_text (cxx_pp);
2520 /* Langhook for print_error_function. */
2522 cxx_print_error_function (diagnostic_context *context, const char *file,
2523 diagnostic_info *diagnostic)
2525 lhd_print_error_function (context, file, diagnostic);
2526 pp_base_set_prefix (context->printer, file);
2527 maybe_print_instantiation_context (context);
2531 cp_diagnostic_starter (diagnostic_context *context,
2532 diagnostic_info *diagnostic)
2534 diagnostic_report_current_module (context);
2535 cp_print_error_function (context, diagnostic);
2536 maybe_print_instantiation_context (context);
2537 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2541 cp_diagnostic_finalizer (diagnostic_context *context,
2542 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2544 pp_base_destroy_prefix (context->printer);
2547 /* Print current function onto BUFFER, in the process of reporting
2548 a diagnostic message. Called from cp_diagnostic_starter. */
2550 cp_print_error_function (diagnostic_context *context,
2551 diagnostic_info *diagnostic)
2553 if (diagnostic_last_function_changed (context, diagnostic))
2555 const char *old_prefix = context->printer->prefix;
2556 const char *file = LOCATION_FILE (diagnostic->location);
2557 tree abstract_origin = diagnostic->abstract_origin;
2558 char *new_prefix = (file && abstract_origin == NULL)
2559 ? file_name_as_prefix (file) : NULL;
2561 pp_base_set_prefix (context->printer, new_prefix);
2563 if (current_function_decl == NULL)
2564 pp_base_string (context->printer, _("At global scope:"));
2569 if (abstract_origin)
2571 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2572 while (TREE_CODE (ao) == BLOCK
2573 && BLOCK_ABSTRACT_ORIGIN (ao)
2574 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2575 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2576 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2580 fndecl = current_function_decl;
2582 pp_printf (context->printer, function_category (fndecl),
2583 cxx_printable_name_translate (fndecl, 2));
2585 while (abstract_origin)
2588 tree block = abstract_origin;
2590 locus = &BLOCK_SOURCE_LOCATION (block);
2592 block = BLOCK_SUPERCONTEXT (block);
2593 while (block && TREE_CODE (block) == BLOCK
2594 && BLOCK_ABSTRACT_ORIGIN (block))
2596 ao = BLOCK_ABSTRACT_ORIGIN (block);
2598 while (TREE_CODE (ao) == BLOCK
2599 && BLOCK_ABSTRACT_ORIGIN (ao)
2600 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2601 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2603 if (TREE_CODE (ao) == FUNCTION_DECL)
2608 else if (TREE_CODE (ao) != BLOCK)
2611 block = BLOCK_SUPERCONTEXT (block);
2614 abstract_origin = block;
2617 while (block && TREE_CODE (block) == BLOCK)
2618 block = BLOCK_SUPERCONTEXT (block);
2620 if (block && TREE_CODE (block) == FUNCTION_DECL)
2622 abstract_origin = NULL;
2626 expanded_location s = expand_location (*locus);
2627 pp_base_character (context->printer, ',');
2628 pp_base_newline (context->printer);
2631 if (flag_show_column && s.column != 0)
2632 pp_printf (context->printer,
2633 _(" inlined from %qs at %s:%d:%d"),
2634 cxx_printable_name_translate (fndecl, 2),
2635 s.file, s.line, s.column);
2637 pp_printf (context->printer,
2638 _(" inlined from %qs at %s:%d"),
2639 cxx_printable_name_translate (fndecl, 2),
2644 pp_printf (context->printer, _(" inlined from %qs"),
2645 cxx_printable_name_translate (fndecl, 2));
2648 pp_base_character (context->printer, ':');
2650 pp_base_newline (context->printer);
2652 diagnostic_set_last_function (context, diagnostic);
2653 pp_base_destroy_prefix (context->printer);
2654 context->printer->prefix = old_prefix;
2658 /* Returns a description of FUNCTION using standard terminology. The
2659 result is a format string of the form "In CATEGORY %qs". */
2661 function_category (tree fn)
2663 /* We can get called from the middle-end for diagnostics of function
2664 clones. Make sure we have language specific information before
2665 dereferencing it. */
2666 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn))
2667 && DECL_FUNCTION_MEMBER_P (fn))
2669 if (DECL_STATIC_FUNCTION_P (fn))
2670 return _("In static member function %qs");
2671 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2672 return _("In copy constructor %qs");
2673 else if (DECL_CONSTRUCTOR_P (fn))
2674 return _("In constructor %qs");
2675 else if (DECL_DESTRUCTOR_P (fn))
2676 return _("In destructor %qs");
2678 return _("In member function %qs");
2681 return _("In function %qs");
2684 /* Report the full context of a current template instantiation,
2687 print_instantiation_full_context (diagnostic_context *context)
2689 struct tinst_level *p = current_instantiation ();
2690 location_t location = input_location;
2694 if (current_function_decl != p->decl
2695 && current_function_decl != NULL_TREE)
2696 /* We can get here during the processing of some synthesized
2697 method. Then, P->DECL will be the function that's causing
2702 if (current_function_decl == p->decl)
2703 /* Avoid redundancy with the "In function" line. */;
2705 pp_verbatim (context->printer,
2706 _("%s: In instantiation of %qs:\n"),
2707 LOCATION_FILE (location),
2708 decl_as_string_translate (p->decl,
2709 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2711 location = p->locus;
2716 print_instantiation_partial_context (context, p, location);
2719 /* Same as above but less verbose. */
2721 print_instantiation_partial_context (diagnostic_context *context,
2722 struct tinst_level *t, location_t loc)
2724 expanded_location xloc;
2726 for (; ; t = t->next)
2728 xloc = expand_location (loc);
2731 str = decl_as_string_translate (t->decl,
2732 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE);
2733 if (flag_show_column)
2734 pp_verbatim (context->printer,
2735 _("%s:%d:%d: instantiated from %qs\n"),
2736 xloc.file, xloc.line, xloc.column, str);
2738 pp_verbatim (context->printer,
2739 _("%s:%d: instantiated from %qs\n"),
2740 xloc.file, xloc.line, str);
2743 if (flag_show_column)
2744 pp_verbatim (context->printer, _("%s:%d:%d: instantiated from here"),
2745 xloc.file, xloc.line, xloc.column);
2747 pp_verbatim (context->printer, _("%s:%d: instantiated from here"),
2748 xloc.file, xloc.line);
2749 pp_base_newline (context->printer);
2752 /* Called from cp_thing to print the template context for an error. */
2754 maybe_print_instantiation_context (diagnostic_context *context)
2756 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2759 record_last_problematic_instantiation ();
2760 print_instantiation_full_context (context);
2763 /* Report the bare minimum context of a template instantiation. */
2765 print_instantiation_context (void)
2767 print_instantiation_partial_context
2768 (global_dc, current_instantiation (), input_location);
2769 diagnostic_flush_buffer (global_dc);
2772 /* Called from output_format -- during diagnostic message processing --
2773 to handle C++ specific format specifier with the following meanings:
2774 %A function argument-list.
2778 %F function declaration.
2779 %L language as used in extern "lang".
2781 %P function parameter whose position is indicated by an integer.
2782 %Q assignment operator.
2786 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
2787 int precision, bool wide, bool set_locus, bool verbose)
2791 #define next_tree (t = va_arg (*text->args_ptr, tree))
2792 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
2793 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
2794 #define next_int va_arg (*text->args_ptr, int)
2796 if (precision != 0 || wide)
2799 if (text->locus == NULL)
2804 case 'A': result = args_to_string (next_tree, verbose); break;
2805 case 'C': result = code_to_string (next_tcode); break;
2808 tree temp = next_tree;
2810 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
2812 temp = DECL_DEBUG_EXPR (temp);
2815 result = expr_to_string (temp);
2819 result = decl_to_string (temp, verbose);
2822 case 'E': result = expr_to_string (next_tree); break;
2823 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2824 case 'L': result = language_to_string (next_lang); break;
2825 case 'O': result = op_to_string (next_tcode); break;
2826 case 'P': result = parm_to_string (next_int); break;
2827 case 'Q': result = assop_to_string (next_tcode); break;
2828 case 'T': result = type_to_string (next_tree, verbose); break;
2829 case 'V': result = cv_to_string (next_tree, verbose); break;
2835 pp_base_string (pp, result);
2836 if (set_locus && t != NULL)
2837 *text->locus = location_of (t);
2845 /* Warn about the use of C++0x features when appropriate. */
2847 maybe_warn_cpp0x (const char* str)
2849 if ((cxx_dialect == cxx98) && !in_system_header)
2850 /* We really want to suppress this warning in system headers,
2851 because libstdc++ uses variadic templates even when we aren't
2853 pedwarn (input_location, 0, "%s only available with -std=c++0x or -std=gnu++0x", str);
2856 /* Warn about the use of variadic templates when appropriate. */
2858 maybe_warn_variadic_templates (void)
2860 maybe_warn_cpp0x ("variadic templates");
2864 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
2865 option OPT with text GMSGID. Use this function to report
2866 diagnostics for constructs that are invalid C++98, but valid
2869 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
2871 diagnostic_info diagnostic;
2874 va_start (ap, gmsgid);
2875 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
2876 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
2877 diagnostic.option_index = opt;
2879 return report_diagnostic (&diagnostic);