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 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
46 static const char *args_to_string (tree, int);
47 static const char *assop_to_string (enum tree_code);
48 static const char *code_to_string (enum tree_code);
49 static const char *cv_to_string (tree, int);
50 static const char *decl_to_string (tree, int);
51 static const char *expr_to_string (tree);
52 static const char *fndecl_to_string (tree, int);
53 static const char *op_to_string (enum tree_code);
54 static const char *parm_to_string (int);
55 static const char *type_to_string (tree, int);
57 static void dump_type (tree, int);
58 static void dump_typename (tree, int);
59 static void dump_simple_decl (tree, tree, int);
60 static void dump_decl (tree, int);
61 static void dump_template_decl (tree, int);
62 static void dump_function_decl (tree, int);
63 static void dump_expr (tree, int);
64 static void dump_unary_op (const char *, tree, int);
65 static void dump_binary_op (const char *, tree, int);
66 static void dump_aggr_type (tree, int);
67 static void dump_type_prefix (tree, int);
68 static void dump_type_suffix (tree, int);
69 static void dump_function_name (tree, int);
70 static void dump_call_expr_args (tree, int, bool);
71 static void dump_aggr_init_expr_args (tree, int, bool);
72 static void dump_expr_list (tree, int);
73 static void dump_global_iord (tree);
74 static void dump_parameters (tree, int);
75 static void dump_exception_spec (tree, int);
76 static void dump_template_argument (tree, int);
77 static void dump_template_argument_list (tree, tree, int);
78 static void dump_template_parameter (tree, int);
79 static void dump_template_bindings (tree, tree, VEC(tree,gc) *);
80 static void dump_scope (tree, int);
81 static void dump_template_parms (tree, int, int);
83 static int count_non_default_template_args (tree, tree);
85 static const char *function_category (tree);
86 static void maybe_print_instantiation_context (diagnostic_context *);
87 static void print_instantiation_full_context (diagnostic_context *);
88 static void print_instantiation_partial_context (diagnostic_context *,
91 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
92 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
93 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
95 static bool cp_printer (pretty_printer *, text_info *, const char *,
96 int, bool, bool, bool);
97 static location_t location_of (tree);
102 diagnostic_starter (global_dc) = cp_diagnostic_starter;
103 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
104 diagnostic_format_decoder (global_dc) = cp_printer;
106 pp_construct (pp_base (cxx_pp), NULL, 0);
107 pp_cxx_pretty_printer_init (cxx_pp);
110 /* Dump a scope, if deemed necessary. */
113 dump_scope (tree scope, int flags)
115 int f = ~TFF_RETURN_TYPE & (flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF));
117 if (scope == NULL_TREE)
120 if (TREE_CODE (scope) == NAMESPACE_DECL)
122 if (scope != global_namespace)
124 dump_decl (scope, f);
125 pp_cxx_colon_colon (cxx_pp);
128 else if (AGGREGATE_TYPE_P (scope))
130 dump_type (scope, f);
131 pp_cxx_colon_colon (cxx_pp);
133 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
135 dump_function_decl (scope, f);
136 pp_cxx_colon_colon (cxx_pp);
140 /* Dump the template ARGument under control of FLAGS. */
143 dump_template_argument (tree arg, int flags)
145 if (ARGUMENT_PACK_P (arg))
146 dump_template_argument_list (ARGUMENT_PACK_ARGS (arg), NULL_TREE, flags);
147 else if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
148 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
151 if (TREE_CODE (arg) == TREE_LIST)
152 arg = TREE_VALUE (arg);
154 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
158 /* Count the number of template arguments ARGS whose value does not
159 match the (optional) default template parameter in PARAMS */
162 count_non_default_template_args (tree args, tree params)
164 int n = TREE_VEC_LENGTH (args);
167 if (params == NULL_TREE || !flag_pretty_templates)
170 for (last = n - 1; last >= 0; --last)
172 tree param = TREE_VEC_ELT (params, last);
173 tree def = TREE_PURPOSE (param);
177 if (uses_template_parms (def))
179 ++processing_template_decl;
180 def = tsubst_copy_and_build (def, args, tf_none, NULL_TREE, false, true);
181 --processing_template_decl;
183 if (!cp_tree_equal (TREE_VEC_ELT (args, last), def))
190 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
194 dump_template_argument_list (tree args, tree parms, int flags)
196 int n = count_non_default_template_args (args, parms);
200 for (i = 0; i < n; ++i)
202 tree arg = TREE_VEC_ELT (args, i);
204 /* Only print a comma if we know there is an argument coming. In
205 the case of an empty template argument pack, no actual
206 argument will be printed. */
208 && (!ARGUMENT_PACK_P (arg)
209 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
210 pp_separate_with_comma (cxx_pp);
212 dump_template_argument (arg, flags);
217 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
220 dump_template_parameter (tree parm, int flags)
225 if (parm == error_mark_node)
228 p = TREE_VALUE (parm);
229 a = TREE_PURPOSE (parm);
231 if (TREE_CODE (p) == TYPE_DECL)
233 if (flags & TFF_DECL_SPECIFIERS)
235 pp_cxx_ws_string (cxx_pp, "class");
236 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
237 pp_cxx_ws_string (cxx_pp, "...");
239 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
241 else if (DECL_NAME (p))
242 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
244 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
247 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
249 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
251 pp_cxx_whitespace (cxx_pp);
253 pp_cxx_whitespace (cxx_pp);
254 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
255 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
257 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
261 /* Dump, under control of FLAGS, a template-parameter-list binding.
262 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
266 dump_template_bindings (tree parms, tree args, VEC(tree,gc)* typenames)
274 tree p = TREE_VALUE (parms);
275 int lvl = TMPL_PARMS_DEPTH (parms);
278 tree lvl_args = NULL_TREE;
280 /* Don't crash if we had an invalid argument list. */
281 if (TMPL_ARGS_DEPTH (args) >= lvl)
282 lvl_args = TMPL_ARGS_LEVEL (args, lvl);
284 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
286 tree arg = NULL_TREE;
288 /* Don't crash if we had an invalid argument list. */
289 if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
290 arg = TREE_VEC_ELT (lvl_args, arg_idx);
293 pp_separate_with_comma (cxx_pp);
294 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
295 pp_cxx_whitespace (cxx_pp);
297 pp_cxx_whitespace (cxx_pp);
299 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
301 pp_string (cxx_pp, _("<missing>"));
307 parms = TREE_CHAIN (parms);
310 for (i = 0; VEC_iterate (tree, typenames, i, t); ++i)
313 pp_separate_with_comma (cxx_pp);
314 dump_type (t, TFF_PLAIN_IDENTIFIER);
315 pp_cxx_whitespace (cxx_pp);
317 pp_cxx_whitespace (cxx_pp);
318 t = tsubst (t, args, tf_none, NULL_TREE);
319 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
320 pp_simple_type_specifier doesn't know about it. */
321 t = canonical_type_variant (t);
322 dump_type (t, TFF_PLAIN_IDENTIFIER);
326 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
330 dump_type (tree t, int flags)
335 if (TYPE_PTRMEMFUNC_P (t))
338 switch (TREE_CODE (t))
341 if (t == init_list_type_node)
342 pp_string (cxx_pp, _("<brace-enclosed initializer list>"));
344 pp_string (cxx_pp, _("<unresolved overloaded function type>"));
348 /* A list of function parms. */
349 dump_parameters (t, flags);
352 case IDENTIFIER_NODE:
353 pp_cxx_tree_identifier (cxx_pp, t);
357 dump_type (BINFO_TYPE (t), flags);
363 dump_aggr_type (t, flags);
367 if (flags & TFF_CHASE_TYPEDEF)
369 dump_type (DECL_ORIGINAL_TYPE (t)
370 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
373 /* Else fall through. */
377 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
386 case FIXED_POINT_TYPE:
387 pp_type_specifier_seq (cxx_pp, t);
390 case TEMPLATE_TEMPLATE_PARM:
391 /* For parameters inside template signature. */
392 if (TYPE_IDENTIFIER (t))
393 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
395 pp_cxx_canonical_template_parameter (cxx_pp, t);
398 case BOUND_TEMPLATE_TEMPLATE_PARM:
400 tree args = TYPE_TI_ARGS (t);
401 pp_cxx_cv_qualifier_seq (cxx_pp, t);
402 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
403 pp_cxx_begin_template_argument_list (cxx_pp);
404 dump_template_argument_list (args, NULL_TREE, flags);
405 pp_cxx_end_template_argument_list (cxx_pp);
409 case TEMPLATE_TYPE_PARM:
410 pp_cxx_cv_qualifier_seq (cxx_pp, t);
411 if (TYPE_IDENTIFIER (t))
412 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
414 pp_cxx_canonical_template_parameter
415 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
418 /* This is not always necessary for pointers and such, but doing this
419 reduces code size. */
428 dump_type_prefix (t, flags);
429 dump_type_suffix (t, flags);
433 if (! (flags & TFF_CHASE_TYPEDEF)
434 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
436 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
439 pp_cxx_cv_qualifier_seq (cxx_pp, t);
440 pp_cxx_ws_string (cxx_pp,
441 TYPENAME_IS_ENUM_P (t) ? "enum"
442 : TYPENAME_IS_CLASS_P (t) ? "class"
444 dump_typename (t, flags);
447 case UNBOUND_CLASS_TEMPLATE:
448 dump_type (TYPE_CONTEXT (t), flags);
449 pp_cxx_colon_colon (cxx_pp);
450 pp_cxx_ws_string (cxx_pp, "template");
451 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
455 pp_cxx_ws_string (cxx_pp, "__typeof__");
456 pp_cxx_whitespace (cxx_pp);
457 pp_cxx_left_paren (cxx_pp);
458 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
459 pp_cxx_right_paren (cxx_pp);
462 case TYPE_PACK_EXPANSION:
463 dump_type (PACK_EXPANSION_PATTERN (t), flags);
464 pp_cxx_ws_string (cxx_pp, "...");
467 case TYPE_ARGUMENT_PACK:
468 dump_template_argument (t, flags);
472 pp_cxx_ws_string (cxx_pp, "decltype");
473 pp_cxx_whitespace (cxx_pp);
474 pp_cxx_left_paren (cxx_pp);
475 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
476 pp_cxx_right_paren (cxx_pp);
480 pp_unsupported_tree (cxx_pp, t);
481 /* Fall through to error. */
484 pp_string (cxx_pp, _("<type error>"));
489 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
493 dump_typename (tree t, int flags)
495 tree ctx = TYPE_CONTEXT (t);
497 if (TREE_CODE (ctx) == TYPENAME_TYPE)
498 dump_typename (ctx, flags);
500 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
501 pp_cxx_colon_colon (cxx_pp);
502 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
505 /* Return the name of the supplied aggregate, or enumeral type. */
508 class_key_or_enum_as_string (tree t)
510 if (TREE_CODE (t) == ENUMERAL_TYPE)
512 if (SCOPED_ENUM_P (t))
517 else if (TREE_CODE (t) == UNION_TYPE)
519 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
525 /* Print out a class declaration T under the control of FLAGS,
526 in the form `class foo'. */
529 dump_aggr_type (tree t, int flags)
532 const char *variety = class_key_or_enum_as_string (t);
536 pp_cxx_cv_qualifier_seq (cxx_pp, t);
538 if (flags & TFF_CLASS_KEY_OR_ENUM)
539 pp_cxx_ws_string (cxx_pp, variety);
541 name = TYPE_NAME (t);
545 typdef = !DECL_ARTIFICIAL (name);
548 && ((flags & TFF_CHASE_TYPEDEF)
549 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
550 && DECL_TEMPLATE_INFO (name))))
552 t = TYPE_MAIN_VARIANT (t);
553 name = TYPE_NAME (t);
557 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
558 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
559 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
560 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
562 if (! (flags & TFF_UNQUALIFIED_NAME))
563 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
564 flags &= ~TFF_UNQUALIFIED_NAME;
567 /* Because the template names are mangled, we have to locate
568 the most general template, and use that name. */
569 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
571 while (DECL_TEMPLATE_INFO (tpl))
572 tpl = DECL_TI_TEMPLATE (tpl);
575 name = DECL_NAME (name);
578 if (name == 0 || ANON_AGGRNAME_P (name))
580 if (flags & TFF_CLASS_KEY_OR_ENUM)
581 pp_string (cxx_pp, _("<anonymous>"));
583 pp_printf (pp_base (cxx_pp), _("<anonymous %s>"), variety);
586 pp_cxx_tree_identifier (cxx_pp, name);
588 dump_template_parms (TYPE_TEMPLATE_INFO (t),
589 !CLASSTYPE_USE_TEMPLATE (t),
590 flags & ~TFF_TEMPLATE_HEADER);
593 /* Dump into the obstack the initial part of the output for a given type.
594 This is necessary when dealing with things like functions returning
597 return type of `int (* fee ())()': pointer -> function -> int. Both
598 pointer (and reference and offset) and function (and member) types must
599 deal with prefix and suffix.
601 Arrays must also do this for DECL nodes, like int a[], and for things like
605 dump_type_prefix (tree t, int flags)
607 if (TYPE_PTRMEMFUNC_P (t))
609 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
613 switch (TREE_CODE (t))
618 tree sub = TREE_TYPE (t);
620 dump_type_prefix (sub, flags);
621 if (TREE_CODE (sub) == ARRAY_TYPE
622 || TREE_CODE (sub) == FUNCTION_TYPE)
624 pp_cxx_whitespace (cxx_pp);
625 pp_cxx_left_paren (cxx_pp);
627 if (TREE_CODE (t) == POINTER_TYPE)
628 pp_character(cxx_pp, '*');
629 else if (TREE_CODE (t) == REFERENCE_TYPE)
631 if (TYPE_REF_IS_RVALUE (t))
632 pp_string (cxx_pp, "&&");
634 pp_character (cxx_pp, '&');
636 pp_base (cxx_pp)->padding = pp_before;
637 pp_cxx_cv_qualifier_seq (cxx_pp, t);
643 dump_type_prefix (TREE_TYPE (t), flags);
644 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
646 pp_maybe_space (cxx_pp);
647 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
648 pp_cxx_left_paren (cxx_pp);
649 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
650 pp_cxx_colon_colon (cxx_pp);
652 pp_cxx_star (cxx_pp);
653 pp_cxx_cv_qualifier_seq (cxx_pp, t);
654 pp_base (cxx_pp)->padding = pp_before;
657 /* This can be reached without a pointer when dealing with
658 templates, e.g. std::is_function. */
660 dump_type_prefix (TREE_TYPE (t), flags);
664 dump_type_prefix (TREE_TYPE (t), flags);
665 pp_maybe_space (cxx_pp);
666 pp_cxx_left_paren (cxx_pp);
667 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
668 pp_cxx_colon_colon (cxx_pp);
672 dump_type_prefix (TREE_TYPE (t), flags);
676 case IDENTIFIER_NODE:
681 case TEMPLATE_TYPE_PARM:
682 case TEMPLATE_TEMPLATE_PARM:
683 case BOUND_TEMPLATE_TEMPLATE_PARM:
695 case TYPE_PACK_EXPANSION:
696 case FIXED_POINT_TYPE:
697 dump_type (t, flags);
698 pp_base (cxx_pp)->padding = pp_before;
702 pp_unsupported_tree (cxx_pp, t);
705 pp_string (cxx_pp, _("<typeprefixerror>"));
710 /* Dump the suffix of type T, under control of FLAGS. This is the part
711 which appears after the identifier (or function parms). */
714 dump_type_suffix (tree t, int flags)
716 if (TYPE_PTRMEMFUNC_P (t))
717 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
719 switch (TREE_CODE (t))
724 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
725 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
726 pp_cxx_right_paren (cxx_pp);
727 dump_type_suffix (TREE_TYPE (t), flags);
734 if (TREE_CODE (t) == METHOD_TYPE)
735 /* Can only be reached through a pointer. */
736 pp_cxx_right_paren (cxx_pp);
737 arg = TYPE_ARG_TYPES (t);
738 if (TREE_CODE (t) == METHOD_TYPE)
739 arg = TREE_CHAIN (arg);
741 /* Function pointers don't have default args. Not in standard C++,
742 anyway; they may in g++, but we'll just pretend otherwise. */
743 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
745 if (TREE_CODE (t) == METHOD_TYPE)
746 pp_cxx_cv_qualifier_seq
747 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
749 pp_cxx_cv_qualifier_seq (cxx_pp, t);
750 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
751 dump_type_suffix (TREE_TYPE (t), flags);
756 pp_maybe_space (cxx_pp);
757 pp_cxx_left_bracket (cxx_pp);
760 tree dtype = TYPE_DOMAIN (t);
761 tree max = TYPE_MAX_VALUE (dtype);
762 if (host_integerp (max, 0))
763 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
764 else if (TREE_CODE (max) == MINUS_EXPR)
765 dump_expr (TREE_OPERAND (max, 0),
766 flags & ~TFF_EXPR_IN_PARENS);
768 dump_expr (fold_build2 (PLUS_EXPR, dtype, max,
769 build_int_cst (dtype, 1)),
770 flags & ~TFF_EXPR_IN_PARENS);
772 pp_cxx_right_bracket (cxx_pp);
773 dump_type_suffix (TREE_TYPE (t), flags);
777 case IDENTIFIER_NODE:
782 case TEMPLATE_TYPE_PARM:
783 case TEMPLATE_TEMPLATE_PARM:
784 case BOUND_TEMPLATE_TEMPLATE_PARM:
796 case TYPE_PACK_EXPANSION:
797 case FIXED_POINT_TYPE:
801 pp_unsupported_tree (cxx_pp, t);
803 /* Don't mark it here, we should have already done in
810 dump_global_iord (tree t)
812 const char *p = NULL;
814 if (DECL_GLOBAL_CTOR_P (t))
815 p = _("(static initializers for %s)");
816 else if (DECL_GLOBAL_DTOR_P (t))
817 p = _("(static destructors for %s)");
821 pp_printf (pp_base (cxx_pp), p, input_filename);
825 dump_simple_decl (tree t, tree type, int flags)
827 if (flags & TFF_DECL_SPECIFIERS)
829 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
830 pp_maybe_space (cxx_pp);
832 if (! (flags & TFF_UNQUALIFIED_NAME)
833 && (!DECL_INITIAL (t)
834 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
835 dump_scope (CP_DECL_CONTEXT (t), flags);
836 flags &= ~TFF_UNQUALIFIED_NAME;
837 if ((flags & TFF_DECL_SPECIFIERS)
838 && DECL_TEMPLATE_PARM_P (t)
839 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
840 pp_string (cxx_pp, "...");
842 dump_decl (DECL_NAME (t), flags);
844 pp_string (cxx_pp, _("<anonymous>"));
845 if (flags & TFF_DECL_SPECIFIERS)
846 dump_type_suffix (type, flags);
849 /* Dump a human readable string for the decl T under control of FLAGS. */
852 dump_decl (tree t, int flags)
857 switch (TREE_CODE (t))
860 /* Don't say 'typedef class A' */
861 if (DECL_ARTIFICIAL (t))
863 if ((flags & TFF_DECL_SPECIFIERS)
864 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
866 /* Say `class T' not just `T'. */
867 pp_cxx_ws_string (cxx_pp, "class");
869 /* Emit the `...' for a parameter pack. */
870 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
871 pp_cxx_ws_string (cxx_pp, "...");
874 dump_type (TREE_TYPE (t), flags);
877 if (flags & TFF_DECL_SPECIFIERS)
878 pp_cxx_ws_string (cxx_pp, "typedef");
879 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
880 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
885 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
887 pp_string (cxx_pp, _("vtable for "));
888 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
889 dump_type (DECL_CONTEXT (t), flags);
892 /* Else fall through. */
895 dump_simple_decl (t, TREE_TYPE (t), flags);
899 pp_string (cxx_pp, _("<return value> "));
900 dump_simple_decl (t, TREE_TYPE (t), flags);
904 if (flags & TFF_DECL_SPECIFIERS)
905 pp_cxx_declaration (cxx_pp, t);
908 if (! (flags & TFF_UNQUALIFIED_NAME))
909 dump_scope (CP_DECL_CONTEXT (t), flags);
910 flags &= ~TFF_UNQUALIFIED_NAME;
911 if (DECL_NAME (t) == NULL_TREE)
912 pp_string (cxx_pp, _("<unnamed>"));
914 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
919 pp_expression (cxx_pp, t);
923 dump_decl (TREE_OPERAND (t, 0), flags);
924 pp_cxx_left_bracket (cxx_pp);
925 dump_decl (TREE_OPERAND (t, 1), flags);
926 pp_cxx_right_bracket (cxx_pp);
929 /* So that we can do dump_decl on an aggr type. */
933 dump_type (t, flags);
937 /* This is a pseudo destructor call which has not been folded into
938 a PSEUDO_DTOR_EXPR yet. */
939 pp_cxx_complement (cxx_pp);
940 dump_type (TREE_OPERAND (t, 0), flags);
947 /* These special cases are duplicated here so that other functions
948 can feed identifiers to error and get them demangled properly. */
949 case IDENTIFIER_NODE:
950 if (IDENTIFIER_TYPENAME_P (t))
952 pp_cxx_ws_string (cxx_pp, "operator");
953 /* Not exactly IDENTIFIER_TYPE_VALUE. */
954 dump_type (TREE_TYPE (t), flags);
958 pp_cxx_tree_identifier (cxx_pp, t);
965 if (DECL_CLASS_SCOPE_P (t))
967 dump_type (DECL_CONTEXT (t), flags);
968 pp_cxx_colon_colon (cxx_pp);
970 else if (DECL_CONTEXT (t))
972 dump_decl (DECL_CONTEXT (t), flags);
973 pp_cxx_colon_colon (cxx_pp);
975 dump_decl (DECL_NAME (t), flags);
979 /* If there's only one function, just treat it like an ordinary
985 if (! DECL_LANG_SPECIFIC (t))
986 pp_string (cxx_pp, _("<built-in>"));
987 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
988 dump_global_iord (t);
990 dump_function_decl (t, flags);
994 dump_template_decl (t, flags);
997 case TEMPLATE_ID_EXPR:
999 tree name = TREE_OPERAND (t, 0);
1001 if (is_overloaded_fn (name))
1002 name = DECL_NAME (get_first_fn (name));
1003 dump_decl (name, flags);
1004 pp_cxx_begin_template_argument_list (cxx_pp);
1005 if (TREE_OPERAND (t, 1))
1006 dump_template_argument_list (TREE_OPERAND (t, 1), NULL_TREE, flags);
1007 pp_cxx_end_template_argument_list (cxx_pp);
1012 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1016 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1017 || (DECL_INITIAL (t) &&
1018 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1019 dump_simple_decl (t, TREE_TYPE (t), flags);
1020 else if (DECL_NAME (t))
1021 dump_decl (DECL_NAME (t), flags);
1022 else if (DECL_INITIAL (t))
1023 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1025 pp_string (cxx_pp, _("<enumerator>"));
1029 pp_cxx_ws_string (cxx_pp, "using");
1030 dump_type (USING_DECL_SCOPE (t), flags);
1031 pp_cxx_colon_colon (cxx_pp);
1032 dump_decl (DECL_NAME (t), flags);
1036 pp_cxx_declaration (cxx_pp, t);
1040 dump_decl (BASELINK_FUNCTIONS (t), flags);
1043 case NON_DEPENDENT_EXPR:
1044 dump_expr (t, flags);
1047 case TEMPLATE_TYPE_PARM:
1048 if (flags & TFF_DECL_SPECIFIERS)
1049 pp_cxx_declaration (cxx_pp, t);
1051 pp_type_id (cxx_pp, t);
1054 case UNBOUND_CLASS_TEMPLATE:
1055 case TYPE_PACK_EXPANSION:
1057 dump_type (t, flags);
1061 pp_unsupported_tree (cxx_pp, t);
1062 /* Fall through to error. */
1065 pp_string (cxx_pp, _("<declaration error>"));
1070 /* Dump a template declaration T under control of FLAGS. This means the
1071 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1074 dump_template_decl (tree t, int flags)
1076 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1080 if (flags & TFF_TEMPLATE_HEADER)
1082 for (parms = orig_parms = nreverse (orig_parms);
1084 parms = TREE_CHAIN (parms))
1086 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1087 int len = TREE_VEC_LENGTH (inner_parms);
1089 pp_cxx_ws_string (cxx_pp, "template");
1090 pp_cxx_begin_template_argument_list (cxx_pp);
1092 /* If we've shown the template prefix, we'd better show the
1093 parameters' and decl's type too. */
1094 flags |= TFF_DECL_SPECIFIERS;
1096 for (i = 0; i < len; i++)
1099 pp_separate_with_comma (cxx_pp);
1100 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1102 pp_cxx_end_template_argument_list (cxx_pp);
1103 pp_cxx_whitespace (cxx_pp);
1105 nreverse(orig_parms);
1107 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1109 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1110 pp_cxx_ws_string (cxx_pp, "class");
1112 /* If this is a parameter pack, print the ellipsis. */
1113 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1114 pp_cxx_ws_string (cxx_pp, "...");
1118 if (DECL_TEMPLATE_RESULT (t)
1119 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1120 dump_type (TREE_TYPE (t),
1121 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1122 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1123 else if (DECL_TEMPLATE_RESULT (t)
1124 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1125 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1128 gcc_assert (TREE_TYPE (t));
1129 switch (NEXT_CODE (t))
1133 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1136 /* This case can occur with some invalid code. */
1137 dump_type (TREE_TYPE (t),
1138 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1139 | (flags & TFF_DECL_SPECIFIERS
1140 ? TFF_CLASS_KEY_OR_ENUM : 0));
1145 /* find_typenames looks through the type of the function template T
1146 and returns a VEC containing any typedefs or TYPENAME_TYPEs it finds. */
1148 struct find_typenames_t
1150 struct pointer_set_t *p_set;
1151 VEC (tree,gc) *typenames;
1155 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1157 struct find_typenames_t *d = (struct find_typenames_t *)data;
1158 tree mv = NULL_TREE;
1160 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1161 /* Add the type of the typedef without any additional cv-quals. */
1162 mv = TREE_TYPE (TYPE_NAME (*tp));
1163 else if (TREE_CODE (*tp) == TYPENAME_TYPE)
1164 /* Add the typename without any cv-qualifiers. */
1165 mv = TYPE_MAIN_VARIANT (*tp);
1167 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1168 VEC_safe_push (tree, gc, d->typenames, mv);
1170 /* Search into class template arguments, which cp_walk_subtrees
1172 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1173 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1179 static VEC(tree,gc) *
1180 find_typenames (tree t)
1182 struct find_typenames_t ft;
1183 ft.p_set = pointer_set_create ();
1184 ft.typenames = NULL;
1185 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1186 find_typenames_r, &ft, ft.p_set);
1187 pointer_set_destroy (ft.p_set);
1188 return ft.typenames;
1191 /* Pretty print a function decl. There are several ways we want to print a
1192 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1193 As error can only apply the '#' flag once to give 0 and 1 for V, there
1194 is %D which doesn't print the throw specs, and %F which does. */
1197 dump_function_decl (tree t, int flags)
1201 tree cname = NULL_TREE;
1202 tree template_args = NULL_TREE;
1203 tree template_parms = NULL_TREE;
1204 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1205 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1207 VEC(tree,gc) *typenames = NULL;
1209 flags &= ~TFF_UNQUALIFIED_NAME;
1210 if (TREE_CODE (t) == TEMPLATE_DECL)
1211 t = DECL_TEMPLATE_RESULT (t);
1213 /* Save the exceptions, in case t is a specialization and we are
1214 emitting an error about incompatible specifications. */
1215 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1217 /* Pretty print template instantiations only. */
1218 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1219 && flag_pretty_templates)
1223 template_args = DECL_TI_ARGS (t);
1224 tmpl = most_general_template (t);
1225 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1227 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1229 typenames = find_typenames (t);
1233 fntype = TREE_TYPE (t);
1234 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1236 if (DECL_CLASS_SCOPE_P (t))
1237 cname = DECL_CONTEXT (t);
1238 /* This is for partially instantiated template methods. */
1239 else if (TREE_CODE (fntype) == METHOD_TYPE)
1240 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1242 if (!(flags & TFF_DECL_SPECIFIERS))
1244 else if (DECL_STATIC_FUNCTION_P (t))
1245 pp_cxx_ws_string (cxx_pp, "static");
1246 else if (DECL_VIRTUAL_P (t))
1247 pp_cxx_ws_string (cxx_pp, "virtual");
1249 /* Print the return type? */
1251 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1252 && !DECL_DESTRUCTOR_P (t);
1254 dump_type_prefix (TREE_TYPE (fntype), flags);
1256 /* Print the function name. */
1257 if (!do_outer_scope)
1261 dump_type (cname, flags);
1262 pp_cxx_colon_colon (cxx_pp);
1265 dump_scope (CP_DECL_CONTEXT (t), flags);
1267 dump_function_name (t, flags);
1269 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1271 dump_parameters (parmtypes, flags);
1273 if (TREE_CODE (fntype) == METHOD_TYPE)
1275 pp_base (cxx_pp)->padding = pp_before;
1276 pp_cxx_cv_qualifier_seq
1277 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1280 if (flags & TFF_EXCEPTION_SPECIFICATION)
1282 pp_base (cxx_pp)->padding = pp_before;
1283 dump_exception_spec (exceptions, flags);
1287 dump_type_suffix (TREE_TYPE (fntype), flags);
1290 /* If T is a template instantiation, dump the parameter binding. */
1291 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1293 pp_cxx_whitespace (cxx_pp);
1294 pp_cxx_left_bracket (cxx_pp);
1295 pp_cxx_ws_string (cxx_pp, _("with"));
1296 pp_cxx_whitespace (cxx_pp);
1297 dump_template_bindings (template_parms, template_args, typenames);
1298 pp_cxx_right_bracket (cxx_pp);
1302 /* Print a parameter list. If this is for a member function, the
1303 member object ptr (and any other hidden args) should have
1304 already been removed. */
1307 dump_parameters (tree parmtypes, int flags)
1310 pp_cxx_left_paren (cxx_pp);
1312 for (first = 1; parmtypes != void_list_node;
1313 parmtypes = TREE_CHAIN (parmtypes))
1316 pp_separate_with_comma (cxx_pp);
1320 pp_cxx_ws_string (cxx_pp, "...");
1324 dump_type (TREE_VALUE (parmtypes), flags);
1326 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1328 pp_cxx_whitespace (cxx_pp);
1330 pp_cxx_whitespace (cxx_pp);
1331 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1335 pp_cxx_right_paren (cxx_pp);
1338 /* Print an exception specification. T is the exception specification. */
1341 dump_exception_spec (tree t, int flags)
1345 pp_cxx_ws_string (cxx_pp, "throw");
1346 pp_cxx_whitespace (cxx_pp);
1347 pp_cxx_left_paren (cxx_pp);
1348 if (TREE_VALUE (t) != NULL_TREE)
1351 dump_type (TREE_VALUE (t), flags);
1355 pp_separate_with_comma (cxx_pp);
1357 pp_cxx_right_paren (cxx_pp);
1361 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1362 and destructors properly. */
1365 dump_function_name (tree t, int flags)
1367 tree name = DECL_NAME (t);
1369 /* We can get here with a decl that was synthesized by language-
1370 independent machinery (e.g. coverage.c) in which case it won't
1371 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1372 will crash. In this case it is safe just to print out the
1374 if (!DECL_LANG_SPECIFIC (t))
1376 pp_cxx_tree_identifier (cxx_pp, name);
1380 if (TREE_CODE (t) == TEMPLATE_DECL)
1381 t = DECL_TEMPLATE_RESULT (t);
1383 /* Don't let the user see __comp_ctor et al. */
1384 if (DECL_CONSTRUCTOR_P (t)
1385 || DECL_DESTRUCTOR_P (t))
1386 name = constructor_name (DECL_CONTEXT (t));
1388 if (DECL_DESTRUCTOR_P (t))
1390 pp_cxx_complement (cxx_pp);
1391 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1393 else if (DECL_CONV_FN_P (t))
1395 /* This cannot use the hack that the operator's return
1396 type is stashed off of its name because it may be
1397 used for error reporting. In the case of conflicting
1398 declarations, both will have the same name, yet
1399 the types will be different, hence the TREE_TYPE field
1400 of the first name will be clobbered by the second. */
1401 pp_cxx_ws_string (cxx_pp, "operator");
1402 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1404 else if (IDENTIFIER_OPNAME_P (name))
1405 pp_cxx_tree_identifier (cxx_pp, name);
1407 dump_decl (name, flags);
1409 if (DECL_TEMPLATE_INFO (t)
1410 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1411 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1412 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1413 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1416 /* Dump the template parameters from the template info INFO under control of
1417 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1418 specialization (partial or complete). For partial specializations we show
1419 the specialized parameter values. For a primary template we show no
1423 dump_template_parms (tree info, int primary, int flags)
1425 tree args = info ? TI_ARGS (info) : NULL_TREE;
1427 if (primary && flags & TFF_TEMPLATE_NAME)
1429 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1430 pp_cxx_begin_template_argument_list (cxx_pp);
1432 /* Be careful only to print things when we have them, so as not
1433 to crash producing error messages. */
1434 if (args && !primary)
1437 /* We don't know the parms for a friend template specialization. */
1438 tree params = (TREE_CODE (TI_TEMPLATE (info)) == TEMPLATE_DECL
1439 ? DECL_INNERMOST_TEMPLATE_PARMS (TI_TEMPLATE (info))
1442 if (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (args))
1443 args = TREE_VEC_ELT (args, TREE_VEC_LENGTH (args) - 1);
1445 len = count_non_default_template_args (args, params);
1447 for (ix = 0; ix != len; ix++)
1449 tree arg = TREE_VEC_ELT (args, ix);
1451 /* Only print a comma if we know there is an argument coming. In
1452 the case of an empty template argument pack, no actual
1453 argument will be printed. */
1455 && (!ARGUMENT_PACK_P (arg)
1456 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1457 pp_separate_with_comma (cxx_pp);
1460 pp_string (cxx_pp, _("<template parameter error>"));
1462 dump_template_argument (arg, flags);
1467 tree tpl = TI_TEMPLATE (info);
1468 tree parms = DECL_TEMPLATE_PARMS (tpl);
1471 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1472 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1474 for (ix = 0; ix != len; ix++)
1478 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1480 pp_string (cxx_pp, _("<template parameter error>"));
1484 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1487 pp_separate_with_comma (cxx_pp);
1489 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1492 pp_cxx_end_template_argument_list (cxx_pp);
1495 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1496 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1499 dump_call_expr_args (tree t, int flags, bool skipfirst)
1502 call_expr_arg_iterator iter;
1504 pp_cxx_left_paren (cxx_pp);
1505 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1511 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1512 if (more_call_expr_args_p (&iter))
1513 pp_separate_with_comma (cxx_pp);
1516 pp_cxx_right_paren (cxx_pp);
1519 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1520 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1524 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1527 aggr_init_expr_arg_iterator iter;
1529 pp_cxx_left_paren (cxx_pp);
1530 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1536 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1537 if (more_aggr_init_expr_args_p (&iter))
1538 pp_separate_with_comma (cxx_pp);
1541 pp_cxx_right_paren (cxx_pp);
1544 /* Print out a list of initializers (subr of dump_expr). */
1547 dump_expr_list (tree l, int flags)
1551 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1554 pp_separate_with_comma (cxx_pp);
1558 /* Print out a vector of initializers (subr of dump_expr). */
1561 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1563 unsigned HOST_WIDE_INT idx;
1566 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1568 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1569 if (idx != VEC_length (constructor_elt, v) - 1)
1570 pp_separate_with_comma (cxx_pp);
1575 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1576 function. Resolve it to a close relative -- in the sense of static
1577 type -- variant being overridden. That is close to what was written in
1578 the source code. Subroutine of dump_expr. */
1581 resolve_virtual_fun_from_obj_type_ref (tree ref)
1583 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1584 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1585 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1588 fun = TREE_CHAIN (fun);
1589 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1590 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1596 /* Print out an expression E under control of FLAGS. */
1599 dump_expr (tree t, int flags)
1604 if (STATEMENT_CLASS_P (t))
1606 pp_cxx_ws_string (cxx_pp, _("<statement>"));
1610 switch (TREE_CODE (t))
1618 case NAMESPACE_DECL:
1621 case IDENTIFIER_NODE:
1622 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1629 pp_constant (cxx_pp, t);
1633 /* While waiting for caret diagnostics, avoid printing
1634 __cxa_allocate_exception, __cxa_throw, and the like. */
1635 pp_cxx_ws_string (cxx_pp, _("<throw-expression>"));
1639 pp_ampersand (cxx_pp);
1640 dump_type (PTRMEM_CST_CLASS (t), flags);
1641 pp_cxx_colon_colon (cxx_pp);
1642 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1646 pp_cxx_left_paren (cxx_pp);
1647 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1648 pp_separate_with_comma (cxx_pp);
1649 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1650 pp_cxx_right_paren (cxx_pp);
1654 pp_cxx_left_paren (cxx_pp);
1655 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1656 pp_string (cxx_pp, " ? ");
1657 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1658 pp_string (cxx_pp, " : ");
1659 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1660 pp_cxx_right_paren (cxx_pp);
1664 if (TREE_HAS_CONSTRUCTOR (t))
1666 pp_cxx_ws_string (cxx_pp, "new");
1667 pp_cxx_whitespace (cxx_pp);
1668 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1671 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1674 case AGGR_INIT_EXPR:
1676 tree fn = NULL_TREE;
1678 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1679 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1681 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1683 if (DECL_CONSTRUCTOR_P (fn))
1684 dump_type (DECL_CONTEXT (fn), flags);
1689 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1691 dump_aggr_init_expr_args (t, flags, true);
1696 tree fn = CALL_EXPR_FN (t);
1697 bool skipfirst = false;
1699 if (TREE_CODE (fn) == ADDR_EXPR)
1700 fn = TREE_OPERAND (fn, 0);
1702 /* Nobody is interested in seeing the guts of vcalls. */
1703 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1704 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1706 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1708 tree ob = CALL_EXPR_ARG (t, 0);
1709 if (TREE_CODE (ob) == ADDR_EXPR)
1711 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1712 pp_cxx_dot (cxx_pp);
1714 else if (TREE_CODE (ob) != PARM_DECL
1715 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1717 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1718 pp_cxx_arrow (cxx_pp);
1722 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1723 dump_call_expr_args (t, flags, skipfirst);
1728 /* Note that this only works for G++ target exprs. If somebody
1729 builds a general TARGET_EXPR, there's no way to represent that
1730 it initializes anything other that the parameter slot for the
1731 default argument. Note we may have cleared out the first
1732 operand in expand_expr, so don't go killing ourselves. */
1733 if (TREE_OPERAND (t, 1))
1734 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1737 case POINTER_PLUS_EXPR:
1738 dump_binary_op ("+", t, flags);
1746 case TRUNC_DIV_EXPR:
1747 case TRUNC_MOD_EXPR:
1755 case TRUTH_ANDIF_EXPR:
1756 case TRUTH_ORIF_EXPR:
1763 case EXACT_DIV_EXPR:
1764 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1768 case FLOOR_DIV_EXPR:
1769 case ROUND_DIV_EXPR:
1771 dump_binary_op ("/", t, flags);
1775 case FLOOR_MOD_EXPR:
1776 case ROUND_MOD_EXPR:
1777 dump_binary_op ("%", t, flags);
1782 tree ob = TREE_OPERAND (t, 0);
1783 if (TREE_CODE (ob) == INDIRECT_REF)
1785 ob = TREE_OPERAND (ob, 0);
1786 if (TREE_CODE (ob) != PARM_DECL
1788 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1790 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1791 pp_cxx_arrow (cxx_pp);
1796 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1797 pp_cxx_dot (cxx_pp);
1799 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1804 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1805 pp_cxx_left_bracket (cxx_pp);
1806 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1807 pp_cxx_right_bracket (cxx_pp);
1810 case UNARY_PLUS_EXPR:
1811 dump_unary_op ("+", t, flags);
1815 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1816 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1817 /* An ADDR_EXPR can have reference type. In that case, we
1818 shouldn't print the `&' doing so indicates to the user
1819 that the expression has pointer type. */
1821 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1822 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1823 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1824 dump_unary_op ("&&", t, flags);
1826 dump_unary_op ("&", t, flags);
1830 if (TREE_HAS_CONSTRUCTOR (t))
1832 t = TREE_OPERAND (t, 0);
1833 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1834 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1835 dump_call_expr_args (t, flags, true);
1839 if (TREE_OPERAND (t,0) != NULL_TREE
1840 && TREE_TYPE (TREE_OPERAND (t, 0))
1841 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1842 dump_expr (TREE_OPERAND (t, 0), flags);
1844 dump_unary_op ("*", t, flags);
1850 case TRUTH_NOT_EXPR:
1851 case PREDECREMENT_EXPR:
1852 case PREINCREMENT_EXPR:
1853 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1856 case POSTDECREMENT_EXPR:
1857 case POSTINCREMENT_EXPR:
1858 pp_cxx_left_paren (cxx_pp);
1859 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1860 pp_cxx_ws_string (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1861 pp_cxx_right_paren (cxx_pp);
1864 case NON_LVALUE_EXPR:
1865 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1866 should be another level of INDIRECT_REF so that I don't have to do
1868 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1870 tree next = TREE_TYPE (TREE_TYPE (t));
1872 while (TREE_CODE (next) == POINTER_TYPE)
1873 next = TREE_TYPE (next);
1875 if (TREE_CODE (next) == FUNCTION_TYPE)
1877 if (flags & TFF_EXPR_IN_PARENS)
1878 pp_cxx_left_paren (cxx_pp);
1879 pp_cxx_star (cxx_pp);
1880 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1881 if (flags & TFF_EXPR_IN_PARENS)
1882 pp_cxx_right_paren (cxx_pp);
1885 /* Else fall through. */
1887 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1891 case VIEW_CONVERT_EXPR:
1893 tree op = TREE_OPERAND (t, 0);
1895 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1897 /* It is a cast, but we cannot tell whether it is a
1898 reinterpret or static cast. Use the C style notation. */
1899 if (flags & TFF_EXPR_IN_PARENS)
1900 pp_cxx_left_paren (cxx_pp);
1901 pp_cxx_left_paren (cxx_pp);
1902 dump_type (TREE_TYPE (t), flags);
1903 pp_cxx_right_paren (cxx_pp);
1904 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1905 if (flags & TFF_EXPR_IN_PARENS)
1906 pp_cxx_right_paren (cxx_pp);
1909 dump_expr (op, flags);
1914 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1916 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1918 if (integer_zerop (idx))
1920 /* A NULL pointer-to-member constant. */
1921 pp_cxx_left_paren (cxx_pp);
1922 pp_cxx_left_paren (cxx_pp);
1923 dump_type (TREE_TYPE (t), flags);
1924 pp_cxx_right_paren (cxx_pp);
1925 pp_character (cxx_pp, '0');
1926 pp_cxx_right_paren (cxx_pp);
1929 else if (host_integerp (idx, 0))
1932 unsigned HOST_WIDE_INT n;
1934 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1935 t = TYPE_METHOD_BASETYPE (t);
1936 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1938 n = tree_low_cst (idx, 0);
1940 /* Map vtable index back one, to allow for the null pointer to
1944 while (n > 0 && virtuals)
1947 virtuals = TREE_CHAIN (virtuals);
1951 dump_expr (BV_FN (virtuals),
1952 flags | TFF_EXPR_IN_PARENS);
1957 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
1959 dump_type (TREE_TYPE (t), 0);
1960 pp_cxx_left_paren (cxx_pp);
1961 pp_cxx_right_paren (cxx_pp);
1965 pp_cxx_left_brace (cxx_pp);
1966 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
1967 pp_cxx_right_brace (cxx_pp);
1974 tree ob = TREE_OPERAND (t, 0);
1975 if (is_dummy_object (ob))
1977 t = TREE_OPERAND (t, 1);
1978 if (TREE_CODE (t) == FUNCTION_DECL)
1980 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
1981 else if (BASELINK_P (t))
1982 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
1983 flags | TFF_EXPR_IN_PARENS);
1985 dump_decl (t, flags);
1989 if (TREE_CODE (ob) == INDIRECT_REF)
1991 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1992 pp_cxx_arrow (cxx_pp);
1993 pp_cxx_star (cxx_pp);
1997 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1998 pp_cxx_dot (cxx_pp);
1999 pp_cxx_star (cxx_pp);
2001 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2006 case TEMPLATE_PARM_INDEX:
2007 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2011 if (TREE_OPERAND (t, 0) == NULL_TREE
2012 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2014 dump_type (TREE_TYPE (t), flags);
2015 pp_cxx_left_paren (cxx_pp);
2016 dump_expr_list (TREE_OPERAND (t, 0), flags);
2017 pp_cxx_right_paren (cxx_pp);
2021 pp_cxx_left_paren (cxx_pp);
2022 dump_type (TREE_TYPE (t), flags);
2023 pp_cxx_right_paren (cxx_pp);
2024 pp_cxx_left_paren (cxx_pp);
2025 dump_expr_list (TREE_OPERAND (t, 0), flags);
2026 pp_cxx_right_paren (cxx_pp);
2030 case STATIC_CAST_EXPR:
2031 pp_cxx_ws_string (cxx_pp, "static_cast");
2033 case REINTERPRET_CAST_EXPR:
2034 pp_cxx_ws_string (cxx_pp, "reinterpret_cast");
2036 case CONST_CAST_EXPR:
2037 pp_cxx_ws_string (cxx_pp, "const_cast");
2039 case DYNAMIC_CAST_EXPR:
2040 pp_cxx_ws_string (cxx_pp, "dynamic_cast");
2042 pp_cxx_begin_template_argument_list (cxx_pp);
2043 dump_type (TREE_TYPE (t), flags);
2044 pp_cxx_end_template_argument_list (cxx_pp);
2045 pp_cxx_left_paren (cxx_pp);
2046 dump_expr (TREE_OPERAND (t, 0), flags);
2047 pp_cxx_right_paren (cxx_pp);
2051 dump_expr (TREE_OPERAND (t, 0), flags);
2052 pp_cxx_arrow (cxx_pp);
2057 if (TREE_CODE (t) == SIZEOF_EXPR)
2058 pp_cxx_ws_string (cxx_pp, "sizeof");
2061 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2062 pp_cxx_ws_string (cxx_pp, "__alignof__");
2064 pp_cxx_whitespace (cxx_pp);
2065 pp_cxx_left_paren (cxx_pp);
2066 if (TYPE_P (TREE_OPERAND (t, 0)))
2067 dump_type (TREE_OPERAND (t, 0), flags);
2069 dump_expr (TREE_OPERAND (t, 0), flags);
2070 pp_cxx_right_paren (cxx_pp);
2075 pp_cxx_ws_string (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2076 pp_cxx_whitespace (cxx_pp);
2077 dump_expr (TREE_OPERAND (t, 0), flags);
2081 pp_string (cxx_pp, _("<unparsed>"));
2084 case TRY_CATCH_EXPR:
2085 case WITH_CLEANUP_EXPR:
2086 case CLEANUP_POINT_EXPR:
2087 dump_expr (TREE_OPERAND (t, 0), flags);
2090 case PSEUDO_DTOR_EXPR:
2091 dump_expr (TREE_OPERAND (t, 2), flags);
2092 pp_cxx_dot (cxx_pp);
2093 dump_type (TREE_OPERAND (t, 0), flags);
2094 pp_cxx_colon_colon (cxx_pp);
2095 pp_cxx_complement (cxx_pp);
2096 dump_type (TREE_OPERAND (t, 1), flags);
2099 case TEMPLATE_ID_EXPR:
2100 dump_decl (t, flags);
2106 case STATEMENT_LIST:
2107 /* We don't yet have a way of dumping statements in a
2108 human-readable format. */
2109 pp_string (cxx_pp, "({...})");
2113 pp_string (cxx_pp, "while (1) { ");
2114 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2115 pp_cxx_right_brace (cxx_pp);
2119 pp_string (cxx_pp, "if (");
2120 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2121 pp_string (cxx_pp, ") break; ");
2125 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2128 case EMPTY_CLASS_EXPR:
2129 dump_type (TREE_TYPE (t), flags);
2130 pp_cxx_left_paren (cxx_pp);
2131 pp_cxx_right_paren (cxx_pp);
2134 case NON_DEPENDENT_EXPR:
2135 dump_expr (TREE_OPERAND (t, 0), flags);
2138 case ARGUMENT_PACK_SELECT:
2139 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2151 pp_type_specifier_seq (cxx_pp, t);
2155 /* We get here when we want to print a dependent type as an
2156 id-expression, without any disambiguator decoration. */
2157 pp_id_expression (cxx_pp, t);
2160 case TEMPLATE_TYPE_PARM:
2161 case BOUND_TEMPLATE_TEMPLATE_PARM:
2162 dump_type (t, flags);
2166 pp_cxx_trait_expression (cxx_pp, t);
2170 pp_cxx_va_arg_expression (cxx_pp, t);
2174 pp_cxx_offsetof_expression (cxx_pp, t);
2178 case EXPR_PACK_EXPANSION:
2185 case VEC_DELETE_EXPR:
2191 case UNORDERED_EXPR:
2201 case FIX_TRUNC_EXPR:
2203 pp_expression (cxx_pp, t);
2206 case TRUTH_AND_EXPR:
2208 case TRUTH_XOR_EXPR:
2209 if (flags & TFF_EXPR_IN_PARENS)
2210 pp_cxx_left_paren (cxx_pp);
2211 pp_expression (cxx_pp, t);
2212 if (flags & TFF_EXPR_IN_PARENS)
2213 pp_cxx_right_paren (cxx_pp);
2217 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2220 /* This list is incomplete, but should suffice for now.
2221 It is very important that `sorry' does not call
2222 `report_error_function'. That could cause an infinite loop. */
2224 pp_unsupported_tree (cxx_pp, t);
2225 /* fall through to ERROR_MARK... */
2227 pp_string (cxx_pp, _("<expression error>"));
2233 dump_binary_op (const char *opstring, tree t, int flags)
2235 pp_cxx_left_paren (cxx_pp);
2236 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2237 pp_cxx_whitespace (cxx_pp);
2239 pp_cxx_ws_string (cxx_pp, opstring);
2241 pp_string (cxx_pp, _("<unknown operator>"));
2242 pp_cxx_whitespace (cxx_pp);
2243 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2244 pp_cxx_right_paren (cxx_pp);
2248 dump_unary_op (const char *opstring, tree t, int flags)
2250 if (flags & TFF_EXPR_IN_PARENS)
2251 pp_cxx_left_paren (cxx_pp);
2252 pp_cxx_ws_string (cxx_pp, opstring);
2253 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2254 if (flags & TFF_EXPR_IN_PARENS)
2255 pp_cxx_right_paren (cxx_pp);
2259 reinit_cxx_pp (void)
2261 pp_clear_output_area (cxx_pp);
2262 pp_base (cxx_pp)->padding = pp_none;
2263 pp_indentation (cxx_pp) = 0;
2264 pp_needs_newline (cxx_pp) = false;
2265 cxx_pp->enclosing_scope = current_function_decl;
2269 /* Exported interface to stringifying types, exprs and decls under TFF_*
2273 type_as_string (tree typ, int flags)
2276 dump_type (typ, flags);
2277 return pp_formatted_text (cxx_pp);
2281 expr_as_string (tree decl, int flags)
2284 dump_expr (decl, flags);
2285 return pp_formatted_text (cxx_pp);
2289 decl_as_string (tree decl, int flags)
2292 dump_decl (decl, flags);
2293 return pp_formatted_text (cxx_pp);
2296 /* Generate the three forms of printable names for cxx_printable_name. */
2299 lang_decl_name (tree decl, int v)
2302 return decl_as_string (decl, TFF_DECL_SPECIFIERS);
2305 if (v == 1 && DECL_CLASS_SCOPE_P (decl))
2307 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2308 pp_cxx_colon_colon (cxx_pp);
2311 if (TREE_CODE (decl) == FUNCTION_DECL)
2312 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2314 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2316 return pp_formatted_text (cxx_pp);
2319 /* Return the location of a tree passed to %+ formats. */
2322 location_of (tree t)
2324 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2325 t = DECL_CONTEXT (t);
2326 else if (TYPE_P (t))
2327 t = TYPE_MAIN_DECL (t);
2328 else if (TREE_CODE (t) == OVERLOAD)
2329 t = OVL_FUNCTION (t);
2331 return DECL_SOURCE_LOCATION (t);
2334 /* Now the interfaces from error et al to dump_type et al. Each takes an
2335 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2339 decl_to_string (tree decl, int verbose)
2343 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2344 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2345 flags = TFF_CLASS_KEY_OR_ENUM;
2347 flags |= TFF_DECL_SPECIFIERS;
2348 else if (TREE_CODE (decl) == FUNCTION_DECL)
2349 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2350 flags |= TFF_TEMPLATE_HEADER;
2353 dump_decl (decl, flags);
2354 return pp_formatted_text (cxx_pp);
2358 expr_to_string (tree decl)
2361 dump_expr (decl, 0);
2362 return pp_formatted_text (cxx_pp);
2366 fndecl_to_string (tree fndecl, int verbose)
2370 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2371 | TFF_TEMPLATE_HEADER;
2373 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2375 dump_decl (fndecl, flags);
2376 return pp_formatted_text (cxx_pp);
2381 code_to_string (enum tree_code c)
2383 return tree_code_name [c];
2387 language_to_string (enum languages c)
2394 case lang_cplusplus:
2406 /* Return the proper printed version of a parameter to a C++ function. */
2409 parm_to_string (int p)
2413 pp_string (cxx_pp, "'this'");
2415 pp_decimal_int (cxx_pp, p + 1);
2416 return pp_formatted_text (cxx_pp);
2420 op_to_string (enum tree_code p)
2422 tree id = operator_name_info[(int) p].identifier;
2423 return id ? IDENTIFIER_POINTER (id) : _("<unknown>");
2427 type_to_string (tree typ, int verbose)
2431 flags |= TFF_CLASS_KEY_OR_ENUM;
2432 flags |= TFF_TEMPLATE_HEADER;
2435 dump_type (typ, flags);
2436 return pp_formatted_text (cxx_pp);
2440 assop_to_string (enum tree_code p)
2442 tree id = assignment_operator_name_info[(int) p].identifier;
2443 return id ? IDENTIFIER_POINTER (id) : _("{unknown}");
2447 args_to_string (tree p, int verbose)
2451 flags |= TFF_CLASS_KEY_OR_ENUM;
2456 if (TYPE_P (TREE_VALUE (p)))
2457 return type_as_string (p, flags);
2460 for (; p; p = TREE_CHAIN (p))
2462 if (TREE_VALUE (p) == null_node)
2463 pp_cxx_ws_string (cxx_pp, "NULL");
2465 dump_type (error_type (TREE_VALUE (p)), flags);
2467 pp_separate_with_comma (cxx_pp);
2469 return pp_formatted_text (cxx_pp);
2473 cv_to_string (tree p, int v)
2476 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2477 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2478 return pp_formatted_text (cxx_pp);
2481 /* Langhook for print_error_function. */
2483 cxx_print_error_function (diagnostic_context *context, const char *file,
2484 diagnostic_info *diagnostic)
2486 lhd_print_error_function (context, file, diagnostic);
2487 pp_base_set_prefix (context->printer, file);
2488 maybe_print_instantiation_context (context);
2492 cp_diagnostic_starter (diagnostic_context *context,
2493 diagnostic_info *diagnostic)
2495 diagnostic_report_current_module (context);
2496 cp_print_error_function (context, diagnostic);
2497 maybe_print_instantiation_context (context);
2498 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2502 cp_diagnostic_finalizer (diagnostic_context *context,
2503 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2505 pp_base_destroy_prefix (context->printer);
2508 /* Print current function onto BUFFER, in the process of reporting
2509 a diagnostic message. Called from cp_diagnostic_starter. */
2511 cp_print_error_function (diagnostic_context *context,
2512 diagnostic_info *diagnostic)
2514 if (diagnostic_last_function_changed (context, diagnostic))
2516 const char *old_prefix = context->printer->prefix;
2517 const char *file = LOCATION_FILE (diagnostic->location);
2518 tree abstract_origin = diagnostic->abstract_origin;
2519 char *new_prefix = (file && abstract_origin == NULL)
2520 ? file_name_as_prefix (file) : NULL;
2522 pp_base_set_prefix (context->printer, new_prefix);
2524 if (current_function_decl == NULL)
2525 pp_base_string (context->printer, _("At global scope:"));
2530 if (abstract_origin)
2532 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2533 while (TREE_CODE (ao) == BLOCK
2534 && BLOCK_ABSTRACT_ORIGIN (ao)
2535 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2536 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2537 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2541 fndecl = current_function_decl;
2543 pp_printf (context->printer, function_category (fndecl),
2544 cxx_printable_name (fndecl, 2));
2546 while (abstract_origin)
2549 tree block = abstract_origin;
2551 locus = &BLOCK_SOURCE_LOCATION (block);
2553 block = BLOCK_SUPERCONTEXT (block);
2554 while (block && TREE_CODE (block) == BLOCK
2555 && BLOCK_ABSTRACT_ORIGIN (block))
2557 ao = BLOCK_ABSTRACT_ORIGIN (block);
2559 while (TREE_CODE (ao) == BLOCK
2560 && BLOCK_ABSTRACT_ORIGIN (ao)
2561 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2562 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2564 if (TREE_CODE (ao) == FUNCTION_DECL)
2569 else if (TREE_CODE (ao) != BLOCK)
2572 block = BLOCK_SUPERCONTEXT (block);
2575 abstract_origin = block;
2578 while (block && TREE_CODE (block) == BLOCK)
2579 block = BLOCK_SUPERCONTEXT (block);
2581 if (TREE_CODE (block) == FUNCTION_DECL)
2583 abstract_origin = NULL;
2587 expanded_location s = expand_location (*locus);
2588 pp_base_character (context->printer, ',');
2589 pp_base_newline (context->printer);
2592 if (flag_show_column && s.column != 0)
2593 pp_printf (context->printer,
2594 _(" inlined from %qs at %s:%d:%d"),
2595 cxx_printable_name (fndecl, 2),
2596 s.file, s.line, s.column);
2598 pp_printf (context->printer,
2599 _(" inlined from %qs at %s:%d"),
2600 cxx_printable_name (fndecl, 2),
2605 pp_printf (context->printer, _(" inlined from %qs"),
2606 cxx_printable_name (fndecl, 2));
2609 pp_base_character (context->printer, ':');
2611 pp_base_newline (context->printer);
2613 diagnostic_set_last_function (context, diagnostic);
2614 pp_base_destroy_prefix (context->printer);
2615 context->printer->prefix = old_prefix;
2619 /* Returns a description of FUNCTION using standard terminology. The
2620 result is a format string of the form "In CATEGORY %qs". */
2622 function_category (tree fn)
2624 if (DECL_FUNCTION_MEMBER_P (fn))
2626 if (DECL_STATIC_FUNCTION_P (fn))
2627 return _("In static member function %qs");
2628 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2629 return _("In copy constructor %qs");
2630 else if (DECL_CONSTRUCTOR_P (fn))
2631 return _("In constructor %qs");
2632 else if (DECL_DESTRUCTOR_P (fn))
2633 return _("In destructor %qs");
2635 return _("In member function %qs");
2638 return _("In function %qs");
2641 /* Report the full context of a current template instantiation,
2644 print_instantiation_full_context (diagnostic_context *context)
2646 struct tinst_level *p = current_instantiation ();
2647 location_t location = input_location;
2651 if (current_function_decl != p->decl
2652 && current_function_decl != NULL_TREE)
2653 /* We can get here during the processing of some synthesized
2654 method. Then, P->DECL will be the function that's causing
2659 if (current_function_decl == p->decl)
2660 /* Avoid redundancy with the "In function" line. */;
2662 pp_verbatim (context->printer,
2663 _("%s: In instantiation of %qs:\n"),
2664 LOCATION_FILE (location),
2665 decl_as_string (p->decl,
2666 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2668 location = p->locus;
2673 print_instantiation_partial_context (context, p, location);
2676 /* Same as above but less verbose. */
2678 print_instantiation_partial_context (diagnostic_context *context,
2679 struct tinst_level *t, location_t loc)
2681 expanded_location xloc;
2682 for (; ; t = t->next)
2684 xloc = expand_location (loc);
2687 pp_verbatim (context->printer, _("%s:%d: instantiated from %qs\n"),
2688 xloc.file, xloc.line,
2689 decl_as_string (t->decl,
2690 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2693 pp_verbatim (context->printer, _("%s:%d: instantiated from here"),
2694 xloc.file, xloc.line);
2695 pp_base_newline (context->printer);
2698 /* Called from cp_thing to print the template context for an error. */
2700 maybe_print_instantiation_context (diagnostic_context *context)
2702 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2705 record_last_problematic_instantiation ();
2706 print_instantiation_full_context (context);
2709 /* Report the bare minimum context of a template instantiation. */
2711 print_instantiation_context (void)
2713 print_instantiation_partial_context
2714 (global_dc, current_instantiation (), input_location);
2715 diagnostic_flush_buffer (global_dc);
2718 /* Called from output_format -- during diagnostic message processing --
2719 to handle C++ specific format specifier with the following meanings:
2720 %A function argument-list.
2724 %F function declaration.
2725 %L language as used in extern "lang".
2727 %P function parameter whose position is indicated by an integer.
2728 %Q assignment operator.
2732 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
2733 int precision, bool wide, bool set_locus, bool verbose)
2737 #define next_tree (t = va_arg (*text->args_ptr, tree))
2738 #define next_tcode va_arg (*text->args_ptr, enum tree_code)
2739 #define next_lang va_arg (*text->args_ptr, enum languages)
2740 #define next_int va_arg (*text->args_ptr, int)
2742 if (precision != 0 || wide)
2745 if (text->locus == NULL)
2750 case 'A': result = args_to_string (next_tree, verbose); break;
2751 case 'C': result = code_to_string (next_tcode); break;
2754 tree temp = next_tree;
2756 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
2758 temp = DECL_DEBUG_EXPR (temp);
2761 result = expr_to_string (temp);
2765 result = decl_to_string (temp, verbose);
2768 case 'E': result = expr_to_string (next_tree); break;
2769 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2770 case 'L': result = language_to_string (next_lang); break;
2771 case 'O': result = op_to_string (next_tcode); break;
2772 case 'P': result = parm_to_string (next_int); break;
2773 case 'Q': result = assop_to_string (next_tcode); break;
2774 case 'T': result = type_to_string (next_tree, verbose); break;
2775 case 'V': result = cv_to_string (next_tree, verbose); break;
2781 pp_base_string (pp, result);
2782 if (set_locus && t != NULL)
2783 *text->locus = location_of (t);
2791 /* Warn about the use of C++0x features when appropriate. */
2793 maybe_warn_cpp0x (const char* str)
2795 if ((cxx_dialect == cxx98) && !in_system_header)
2796 /* We really want to suppress this warning in system headers,
2797 because libstdc++ uses variadic templates even when we aren't
2799 pedwarn (input_location, 0, "%s only available with -std=c++0x or -std=gnu++0x", str);
2802 /* Warn about the use of variadic templates when appropriate. */
2804 maybe_warn_variadic_templates (void)
2806 maybe_warn_cpp0x ("variadic templates");
2810 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
2811 option OPT with text GMSGID. Use this function to report
2812 diagnostics for constructs that are invalid C++98, but valid
2815 pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
2817 diagnostic_info diagnostic;
2820 va_start (ap, gmsgid);
2821 diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
2822 (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
2823 diagnostic.option_index = opt;
2825 return report_diagnostic (&diagnostic);