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"
32 #include "cxx-pretty-print.h"
33 #include "pointer-set.h"
35 #define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
37 /* The global buffer where we dump everything. It is there only for
38 transitional purpose. It is expected, in the near future, to be
39 completely removed. */
40 static cxx_pretty_printer scratch_pretty_printer;
41 #define cxx_pp (&scratch_pretty_printer)
43 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
45 static const char *args_to_string (tree, int);
46 static const char *assop_to_string (enum tree_code);
47 static const char *code_to_string (enum tree_code);
48 static const char *cv_to_string (tree, int);
49 static const char *decl_to_string (tree, int);
50 static const char *expr_to_string (tree);
51 static const char *fndecl_to_string (tree, int);
52 static const char *op_to_string (enum tree_code);
53 static const char *parm_to_string (int);
54 static const char *type_to_string (tree, int);
56 static void dump_type (tree, int);
57 static void dump_typename (tree, int);
58 static void dump_simple_decl (tree, tree, int);
59 static void dump_decl (tree, int);
60 static void dump_template_decl (tree, int);
61 static void dump_function_decl (tree, int);
62 static void dump_expr (tree, int);
63 static void dump_unary_op (const char *, tree, int);
64 static void dump_binary_op (const char *, tree, int);
65 static void dump_aggr_type (tree, int);
66 static void dump_type_prefix (tree, int);
67 static void dump_type_suffix (tree, int);
68 static void dump_function_name (tree, int);
69 static void dump_call_expr_args (tree, int, bool);
70 static void dump_aggr_init_expr_args (tree, int, bool);
71 static void dump_expr_list (tree, int);
72 static void dump_global_iord (tree);
73 static void dump_parameters (tree, int);
74 static void dump_exception_spec (tree, int);
75 static void dump_template_argument (tree, int);
76 static void dump_template_argument_list (tree, tree, int);
77 static void dump_template_parameter (tree, int);
78 static void dump_template_bindings (tree, tree, VEC(tree,gc) *);
79 static void dump_scope (tree, int);
80 static void dump_template_parms (tree, int, int);
82 static int count_non_default_template_args (tree, tree);
84 static const char *function_category (tree);
85 static void maybe_print_instantiation_context (diagnostic_context *);
86 static void print_instantiation_full_context (diagnostic_context *);
87 static void print_instantiation_partial_context (diagnostic_context *,
90 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
91 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
92 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
94 static bool cp_printer (pretty_printer *, text_info *, const char *,
95 int, bool, bool, bool);
96 static location_t location_of (tree);
101 diagnostic_starter (global_dc) = cp_diagnostic_starter;
102 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
103 diagnostic_format_decoder (global_dc) = cp_printer;
105 pp_construct (pp_base (cxx_pp), NULL, 0);
106 pp_cxx_pretty_printer_init (cxx_pp);
109 /* Dump a scope, if deemed necessary. */
112 dump_scope (tree scope, int flags)
114 int f = ~TFF_RETURN_TYPE & (flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF));
116 if (scope == NULL_TREE)
119 if (TREE_CODE (scope) == NAMESPACE_DECL)
121 if (scope != global_namespace)
123 dump_decl (scope, f);
124 pp_cxx_colon_colon (cxx_pp);
127 else if (AGGREGATE_TYPE_P (scope))
129 dump_type (scope, f);
130 pp_cxx_colon_colon (cxx_pp);
132 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
134 dump_function_decl (scope, f);
135 pp_cxx_colon_colon (cxx_pp);
139 /* Dump the template ARGument under control of FLAGS. */
142 dump_template_argument (tree arg, int flags)
144 if (ARGUMENT_PACK_P (arg))
145 dump_template_argument_list (ARGUMENT_PACK_ARGS (arg), NULL_TREE, flags);
146 else if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
147 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
150 if (TREE_CODE (arg) == TREE_LIST)
151 arg = TREE_VALUE (arg);
153 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
157 /* Count the number of template arguments ARGS whose value does not
158 match the (optional) default template parameter in PARAMS */
161 count_non_default_template_args (tree args, tree params)
163 int n = TREE_VEC_LENGTH (args);
166 if (params == NULL_TREE || !flag_pretty_templates)
169 for (last = n - 1; last >= 0; --last)
171 tree param = TREE_VEC_ELT (params, last);
172 tree def = TREE_PURPOSE (param);
176 if (uses_template_parms (def))
178 ++processing_template_decl;
179 def = tsubst_copy_and_build (def, args, tf_none, NULL_TREE, false, true);
180 --processing_template_decl;
182 if (!cp_tree_equal (TREE_VEC_ELT (args, last), def))
189 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
193 dump_template_argument_list (tree args, tree parms, int flags)
195 int n = count_non_default_template_args (args, parms);
199 for (i = 0; i < n; ++i)
201 tree arg = TREE_VEC_ELT (args, i);
203 /* Only print a comma if we know there is an argument coming. In
204 the case of an empty template argument pack, no actual
205 argument will be printed. */
207 && (!ARGUMENT_PACK_P (arg)
208 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
209 pp_separate_with_comma (cxx_pp);
211 dump_template_argument (arg, flags);
216 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
219 dump_template_parameter (tree parm, int flags)
224 if (parm == error_mark_node)
227 p = TREE_VALUE (parm);
228 a = TREE_PURPOSE (parm);
230 if (TREE_CODE (p) == TYPE_DECL)
232 if (flags & TFF_DECL_SPECIFIERS)
234 pp_cxx_identifier (cxx_pp, "class");
235 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
236 pp_cxx_identifier (cxx_pp, "...");
238 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
240 else if (DECL_NAME (p))
241 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
243 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
246 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
248 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
250 pp_cxx_whitespace (cxx_pp);
252 pp_cxx_whitespace (cxx_pp);
253 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
254 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
256 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
260 /* Dump, under control of FLAGS, a template-parameter-list binding.
261 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
265 dump_template_bindings (tree parms, tree args, VEC(tree,gc)* typenames)
273 tree p = TREE_VALUE (parms);
274 int lvl = TMPL_PARMS_DEPTH (parms);
277 tree lvl_args = NULL_TREE;
279 /* Don't crash if we had an invalid argument list. */
280 if (TMPL_ARGS_DEPTH (args) >= lvl)
281 lvl_args = TMPL_ARGS_LEVEL (args, lvl);
283 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
285 tree arg = NULL_TREE;
287 /* Don't crash if we had an invalid argument list. */
288 if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
289 arg = TREE_VEC_ELT (lvl_args, arg_idx);
292 pp_separate_with_comma (cxx_pp);
293 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
294 pp_cxx_whitespace (cxx_pp);
296 pp_cxx_whitespace (cxx_pp);
298 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
300 pp_identifier (cxx_pp, "<missing>");
306 parms = TREE_CHAIN (parms);
309 for (i = 0; VEC_iterate (tree, typenames, i, t); ++i)
312 pp_separate_with_comma (cxx_pp);
313 dump_type (t, TFF_PLAIN_IDENTIFIER);
314 pp_cxx_whitespace (cxx_pp);
316 pp_cxx_whitespace (cxx_pp);
317 t = tsubst (t, args, tf_none, NULL_TREE);
318 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
319 pp_simple_type_specifier doesn't know about it. */
320 t = canonical_type_variant (t);
321 dump_type (t, TFF_PLAIN_IDENTIFIER);
325 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
329 dump_type (tree t, int flags)
334 if (TYPE_PTRMEMFUNC_P (t))
337 switch (TREE_CODE (t))
340 if (t == init_list_type_node)
341 pp_identifier (cxx_pp, "<brace-enclosed initializer list>");
343 pp_identifier (cxx_pp, "<unresolved overloaded function type>");
347 /* A list of function parms. */
348 dump_parameters (t, flags);
351 case IDENTIFIER_NODE:
352 pp_cxx_tree_identifier (cxx_pp, t);
356 dump_type (BINFO_TYPE (t), flags);
362 dump_aggr_type (t, flags);
366 if (flags & TFF_CHASE_TYPEDEF)
368 dump_type (DECL_ORIGINAL_TYPE (t)
369 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
372 /* Else fall through. */
376 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
385 case FIXED_POINT_TYPE:
386 pp_type_specifier_seq (cxx_pp, t);
389 case TEMPLATE_TEMPLATE_PARM:
390 /* For parameters inside template signature. */
391 if (TYPE_IDENTIFIER (t))
392 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
394 pp_cxx_canonical_template_parameter (cxx_pp, t);
397 case BOUND_TEMPLATE_TEMPLATE_PARM:
399 tree args = TYPE_TI_ARGS (t);
400 pp_cxx_cv_qualifier_seq (cxx_pp, t);
401 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
402 pp_cxx_begin_template_argument_list (cxx_pp);
403 dump_template_argument_list (args, NULL_TREE, flags);
404 pp_cxx_end_template_argument_list (cxx_pp);
408 case TEMPLATE_TYPE_PARM:
409 pp_cxx_cv_qualifier_seq (cxx_pp, t);
410 if (TYPE_IDENTIFIER (t))
411 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
413 pp_cxx_canonical_template_parameter
414 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
417 /* This is not always necessary for pointers and such, but doing this
418 reduces code size. */
427 dump_type_prefix (t, flags);
428 dump_type_suffix (t, flags);
432 if (! (flags & TFF_CHASE_TYPEDEF)
433 && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
435 dump_decl (TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
438 pp_cxx_cv_qualifier_seq (cxx_pp, t);
439 pp_cxx_identifier (cxx_pp,
440 TYPENAME_IS_ENUM_P (t) ? "enum"
441 : TYPENAME_IS_CLASS_P (t) ? "class"
443 dump_typename (t, flags);
446 case UNBOUND_CLASS_TEMPLATE:
447 dump_type (TYPE_CONTEXT (t), flags);
448 pp_cxx_colon_colon (cxx_pp);
449 pp_cxx_identifier (cxx_pp, "template");
450 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
454 pp_cxx_identifier (cxx_pp, "__typeof__");
455 pp_cxx_whitespace (cxx_pp);
456 pp_cxx_left_paren (cxx_pp);
457 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
458 pp_cxx_right_paren (cxx_pp);
461 case TYPE_PACK_EXPANSION:
462 dump_type (PACK_EXPANSION_PATTERN (t), flags);
463 pp_cxx_identifier (cxx_pp, "...");
466 case TYPE_ARGUMENT_PACK:
467 dump_template_argument (t, flags);
471 pp_cxx_identifier (cxx_pp, "decltype");
472 pp_cxx_whitespace (cxx_pp);
473 pp_cxx_left_paren (cxx_pp);
474 dump_expr (DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
475 pp_cxx_right_paren (cxx_pp);
479 pp_unsupported_tree (cxx_pp, t);
480 /* Fall through to error. */
483 pp_identifier (cxx_pp, "<type error>");
488 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
492 dump_typename (tree t, int flags)
494 tree ctx = TYPE_CONTEXT (t);
496 if (TREE_CODE (ctx) == TYPENAME_TYPE)
497 dump_typename (ctx, flags);
499 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
500 pp_cxx_colon_colon (cxx_pp);
501 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
504 /* Return the name of the supplied aggregate, or enumeral type. */
507 class_key_or_enum_as_string (tree t)
509 if (TREE_CODE (t) == ENUMERAL_TYPE)
511 if (SCOPED_ENUM_P (t))
516 else if (TREE_CODE (t) == UNION_TYPE)
518 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
524 /* Print out a class declaration T under the control of FLAGS,
525 in the form `class foo'. */
528 dump_aggr_type (tree t, int flags)
531 const char *variety = class_key_or_enum_as_string (t);
535 pp_cxx_cv_qualifier_seq (cxx_pp, t);
537 if (flags & TFF_CLASS_KEY_OR_ENUM)
538 pp_cxx_identifier (cxx_pp, variety);
540 name = TYPE_NAME (t);
544 typdef = !DECL_ARTIFICIAL (name);
547 && ((flags & TFF_CHASE_TYPEDEF)
548 || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
549 && DECL_TEMPLATE_INFO (name))))
551 t = TYPE_MAIN_VARIANT (t);
552 name = TYPE_NAME (t);
556 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
557 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
558 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
559 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
561 if (! (flags & TFF_UNQUALIFIED_NAME))
562 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
563 flags &= ~TFF_UNQUALIFIED_NAME;
566 /* Because the template names are mangled, we have to locate
567 the most general template, and use that name. */
568 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
570 while (DECL_TEMPLATE_INFO (tpl))
571 tpl = DECL_TI_TEMPLATE (tpl);
574 name = DECL_NAME (name);
577 if (name == 0 || ANON_AGGRNAME_P (name))
579 if (flags & TFF_CLASS_KEY_OR_ENUM)
580 pp_identifier (cxx_pp, "<anonymous>");
582 pp_printf (pp_base (cxx_pp), "<anonymous %s>", variety);
585 pp_cxx_tree_identifier (cxx_pp, name);
587 dump_template_parms (TYPE_TEMPLATE_INFO (t),
588 !CLASSTYPE_USE_TEMPLATE (t),
589 flags & ~TFF_TEMPLATE_HEADER);
592 /* Dump into the obstack the initial part of the output for a given type.
593 This is necessary when dealing with things like functions returning
596 return type of `int (* fee ())()': pointer -> function -> int. Both
597 pointer (and reference and offset) and function (and member) types must
598 deal with prefix and suffix.
600 Arrays must also do this for DECL nodes, like int a[], and for things like
604 dump_type_prefix (tree t, int flags)
606 if (TYPE_PTRMEMFUNC_P (t))
608 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
612 switch (TREE_CODE (t))
617 tree sub = TREE_TYPE (t);
619 dump_type_prefix (sub, flags);
620 if (TREE_CODE (sub) == ARRAY_TYPE
621 || TREE_CODE (sub) == FUNCTION_TYPE)
623 pp_cxx_whitespace (cxx_pp);
624 pp_cxx_left_paren (cxx_pp);
626 if (TREE_CODE (t) == POINTER_TYPE)
627 pp_character(cxx_pp, '*');
628 else if (TREE_CODE (t) == REFERENCE_TYPE)
630 if (TYPE_REF_IS_RVALUE (t))
631 pp_string (cxx_pp, "&&");
633 pp_character (cxx_pp, '&');
635 pp_base (cxx_pp)->padding = pp_before;
636 pp_cxx_cv_qualifier_seq (cxx_pp, t);
642 dump_type_prefix (TREE_TYPE (t), flags);
643 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
645 pp_maybe_space (cxx_pp);
646 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
647 pp_cxx_left_paren (cxx_pp);
648 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
649 pp_cxx_colon_colon (cxx_pp);
651 pp_cxx_star (cxx_pp);
652 pp_cxx_cv_qualifier_seq (cxx_pp, t);
653 pp_base (cxx_pp)->padding = pp_before;
656 /* This can be reached without a pointer when dealing with
657 templates, e.g. std::is_function. */
659 dump_type_prefix (TREE_TYPE (t), flags);
663 dump_type_prefix (TREE_TYPE (t), flags);
664 pp_maybe_space (cxx_pp);
665 pp_cxx_left_paren (cxx_pp);
666 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
667 pp_cxx_colon_colon (cxx_pp);
671 dump_type_prefix (TREE_TYPE (t), flags);
675 case IDENTIFIER_NODE:
680 case TEMPLATE_TYPE_PARM:
681 case TEMPLATE_TEMPLATE_PARM:
682 case BOUND_TEMPLATE_TEMPLATE_PARM:
694 case TYPE_PACK_EXPANSION:
695 case FIXED_POINT_TYPE:
696 dump_type (t, flags);
697 pp_base (cxx_pp)->padding = pp_before;
701 pp_unsupported_tree (cxx_pp, t);
704 pp_identifier (cxx_pp, "<typeprefixerror>");
709 /* Dump the suffix of type T, under control of FLAGS. This is the part
710 which appears after the identifier (or function parms). */
713 dump_type_suffix (tree t, int flags)
715 if (TYPE_PTRMEMFUNC_P (t))
716 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
718 switch (TREE_CODE (t))
723 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
724 || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
725 pp_cxx_right_paren (cxx_pp);
726 dump_type_suffix (TREE_TYPE (t), flags);
733 if (TREE_CODE (t) == METHOD_TYPE)
734 /* Can only be reached through a pointer. */
735 pp_cxx_right_paren (cxx_pp);
736 arg = TYPE_ARG_TYPES (t);
737 if (TREE_CODE (t) == METHOD_TYPE)
738 arg = TREE_CHAIN (arg);
740 /* Function pointers don't have default args. Not in standard C++,
741 anyway; they may in g++, but we'll just pretend otherwise. */
742 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
744 if (TREE_CODE (t) == METHOD_TYPE)
745 pp_cxx_cv_qualifier_seq
746 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
748 pp_cxx_cv_qualifier_seq (cxx_pp, t);
749 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
750 dump_type_suffix (TREE_TYPE (t), flags);
755 pp_maybe_space (cxx_pp);
756 pp_cxx_left_bracket (cxx_pp);
759 tree dtype = TYPE_DOMAIN (t);
760 tree max = TYPE_MAX_VALUE (dtype);
761 if (host_integerp (max, 0))
762 pp_wide_integer (cxx_pp, tree_low_cst (max, 0) + 1);
763 else if (TREE_CODE (max) == MINUS_EXPR)
764 dump_expr (TREE_OPERAND (max, 0),
765 flags & ~TFF_EXPR_IN_PARENS);
767 dump_expr (fold_build2 (PLUS_EXPR, dtype, max,
768 build_int_cst (dtype, 1)),
769 flags & ~TFF_EXPR_IN_PARENS);
771 pp_cxx_right_bracket (cxx_pp);
772 dump_type_suffix (TREE_TYPE (t), flags);
776 case IDENTIFIER_NODE:
781 case TEMPLATE_TYPE_PARM:
782 case TEMPLATE_TEMPLATE_PARM:
783 case BOUND_TEMPLATE_TEMPLATE_PARM:
795 case TYPE_PACK_EXPANSION:
796 case FIXED_POINT_TYPE:
800 pp_unsupported_tree (cxx_pp, t);
802 /* Don't mark it here, we should have already done in
809 dump_global_iord (tree t)
811 const char *p = NULL;
813 if (DECL_GLOBAL_CTOR_P (t))
815 else if (DECL_GLOBAL_DTOR_P (t))
820 pp_printf (pp_base (cxx_pp), "(static %s for %s)", p, input_filename);
824 dump_simple_decl (tree t, tree type, int flags)
826 if (flags & TFF_DECL_SPECIFIERS)
828 dump_type_prefix (type, flags & ~TFF_UNQUALIFIED_NAME);
829 pp_maybe_space (cxx_pp);
831 if (! (flags & TFF_UNQUALIFIED_NAME)
832 && (!DECL_INITIAL (t)
833 || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
834 dump_scope (CP_DECL_CONTEXT (t), flags);
835 flags &= ~TFF_UNQUALIFIED_NAME;
836 if ((flags & TFF_DECL_SPECIFIERS)
837 && DECL_TEMPLATE_PARM_P (t)
838 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
839 pp_identifier (cxx_pp, "...");
841 dump_decl (DECL_NAME (t), flags);
843 pp_identifier (cxx_pp, "<anonymous>");
844 if (flags & TFF_DECL_SPECIFIERS)
845 dump_type_suffix (type, flags);
848 /* Dump a human readable string for the decl T under control of FLAGS. */
851 dump_decl (tree t, int flags)
856 switch (TREE_CODE (t))
859 /* Don't say 'typedef class A' */
860 if (DECL_ARTIFICIAL (t))
862 if ((flags & TFF_DECL_SPECIFIERS)
863 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
865 /* Say `class T' not just `T'. */
866 pp_cxx_identifier (cxx_pp, "class");
868 /* Emit the `...' for a parameter pack. */
869 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
870 pp_cxx_identifier (cxx_pp, "...");
873 dump_type (TREE_TYPE (t), flags);
876 if (flags & TFF_DECL_SPECIFIERS)
877 pp_cxx_identifier (cxx_pp, "typedef");
878 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
879 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
884 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
886 pp_string (cxx_pp, "vtable for ");
887 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
888 dump_type (DECL_CONTEXT (t), flags);
891 /* Else fall through. */
894 dump_simple_decl (t, TREE_TYPE (t), flags);
898 pp_string (cxx_pp, "<return value> ");
899 dump_simple_decl (t, TREE_TYPE (t), flags);
903 if (flags & TFF_DECL_SPECIFIERS)
904 pp_cxx_declaration (cxx_pp, t);
907 if (! (flags & TFF_UNQUALIFIED_NAME))
908 dump_scope (CP_DECL_CONTEXT (t), flags);
909 flags &= ~TFF_UNQUALIFIED_NAME;
910 if (DECL_NAME (t) == NULL_TREE)
911 pp_identifier (cxx_pp, "<unnamed>");
913 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
918 pp_expression (cxx_pp, t);
922 dump_decl (TREE_OPERAND (t, 0), flags);
923 pp_cxx_left_bracket (cxx_pp);
924 dump_decl (TREE_OPERAND (t, 1), flags);
925 pp_cxx_right_bracket (cxx_pp);
928 /* So that we can do dump_decl on an aggr type. */
932 dump_type (t, flags);
936 /* This is a pseudo destructor call which has not been folded into
937 a PSEUDO_DTOR_EXPR yet. */
938 pp_cxx_complement (cxx_pp);
939 dump_type (TREE_OPERAND (t, 0), flags);
946 /* These special cases are duplicated here so that other functions
947 can feed identifiers to error and get them demangled properly. */
948 case IDENTIFIER_NODE:
949 if (IDENTIFIER_TYPENAME_P (t))
951 pp_cxx_identifier (cxx_pp, "operator");
952 /* Not exactly IDENTIFIER_TYPE_VALUE. */
953 dump_type (TREE_TYPE (t), flags);
957 pp_cxx_tree_identifier (cxx_pp, t);
964 if (DECL_CLASS_SCOPE_P (t))
966 dump_type (DECL_CONTEXT (t), flags);
967 pp_cxx_colon_colon (cxx_pp);
969 else if (DECL_CONTEXT (t))
971 dump_decl (DECL_CONTEXT (t), flags);
972 pp_cxx_colon_colon (cxx_pp);
974 dump_decl (DECL_NAME (t), flags);
978 /* If there's only one function, just treat it like an ordinary
984 if (! DECL_LANG_SPECIFIC (t))
985 pp_identifier (cxx_pp, "<built-in>");
986 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
987 dump_global_iord (t);
989 dump_function_decl (t, flags);
993 dump_template_decl (t, flags);
996 case TEMPLATE_ID_EXPR:
998 tree name = TREE_OPERAND (t, 0);
1000 if (is_overloaded_fn (name))
1001 name = DECL_NAME (get_first_fn (name));
1002 dump_decl (name, flags);
1003 pp_cxx_begin_template_argument_list (cxx_pp);
1004 if (TREE_OPERAND (t, 1))
1005 dump_template_argument_list (TREE_OPERAND (t, 1), NULL_TREE, flags);
1006 pp_cxx_end_template_argument_list (cxx_pp);
1011 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
1015 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
1016 || (DECL_INITIAL (t) &&
1017 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
1018 dump_simple_decl (t, TREE_TYPE (t), flags);
1019 else if (DECL_NAME (t))
1020 dump_decl (DECL_NAME (t), flags);
1021 else if (DECL_INITIAL (t))
1022 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
1024 pp_identifier (cxx_pp, "<enumerator>");
1028 pp_cxx_identifier (cxx_pp, "using");
1029 dump_type (USING_DECL_SCOPE (t), flags);
1030 pp_cxx_colon_colon (cxx_pp);
1031 dump_decl (DECL_NAME (t), flags);
1035 pp_cxx_declaration (cxx_pp, t);
1039 dump_decl (BASELINK_FUNCTIONS (t), flags);
1042 case NON_DEPENDENT_EXPR:
1043 dump_expr (t, flags);
1046 case TEMPLATE_TYPE_PARM:
1047 if (flags & TFF_DECL_SPECIFIERS)
1048 pp_cxx_declaration (cxx_pp, t);
1050 pp_type_id (cxx_pp, t);
1053 case UNBOUND_CLASS_TEMPLATE:
1054 case TYPE_PACK_EXPANSION:
1056 dump_type (t, flags);
1060 pp_unsupported_tree (cxx_pp, t);
1061 /* Fall through to error. */
1064 pp_identifier (cxx_pp, "<declaration error>");
1069 /* Dump a template declaration T under control of FLAGS. This means the
1070 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1073 dump_template_decl (tree t, int flags)
1075 tree orig_parms = DECL_TEMPLATE_PARMS (t);
1079 if (flags & TFF_TEMPLATE_HEADER)
1081 for (parms = orig_parms = nreverse (orig_parms);
1083 parms = TREE_CHAIN (parms))
1085 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
1086 int len = TREE_VEC_LENGTH (inner_parms);
1088 pp_cxx_identifier (cxx_pp, "template");
1089 pp_cxx_begin_template_argument_list (cxx_pp);
1091 /* If we've shown the template prefix, we'd better show the
1092 parameters' and decl's type too. */
1093 flags |= TFF_DECL_SPECIFIERS;
1095 for (i = 0; i < len; i++)
1098 pp_separate_with_comma (cxx_pp);
1099 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
1101 pp_cxx_end_template_argument_list (cxx_pp);
1102 pp_cxx_whitespace (cxx_pp);
1104 nreverse(orig_parms);
1106 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
1108 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1109 pp_cxx_identifier (cxx_pp, "class");
1111 /* If this is a parameter pack, print the ellipsis. */
1112 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
1113 pp_cxx_identifier (cxx_pp, "...");
1117 if (DECL_TEMPLATE_RESULT (t)
1118 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
1119 dump_type (TREE_TYPE (t),
1120 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1121 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
1122 else if (DECL_TEMPLATE_RESULT (t)
1123 && TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
1124 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
1127 gcc_assert (TREE_TYPE (t));
1128 switch (NEXT_CODE (t))
1132 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
1135 /* This case can occur with some invalid code. */
1136 dump_type (TREE_TYPE (t),
1137 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
1138 | (flags & TFF_DECL_SPECIFIERS
1139 ? TFF_CLASS_KEY_OR_ENUM : 0));
1144 /* find_typenames looks through the type of the function template T
1145 and returns a VEC containing any typedefs or TYPENAME_TYPEs it finds. */
1147 struct find_typenames_t
1149 struct pointer_set_t *p_set;
1150 VEC (tree,gc) *typenames;
1154 find_typenames_r (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED, void *data)
1156 struct find_typenames_t *d = (struct find_typenames_t *)data;
1157 tree mv = NULL_TREE;
1159 if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
1160 /* Add the type of the typedef without any additional cv-quals. */
1161 mv = TREE_TYPE (TYPE_NAME (*tp));
1162 else if (TREE_CODE (*tp) == TYPENAME_TYPE)
1163 /* Add the typename without any cv-qualifiers. */
1164 mv = TYPE_MAIN_VARIANT (*tp);
1166 if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
1167 VEC_safe_push (tree, gc, d->typenames, mv);
1169 /* Search into class template arguments, which cp_walk_subtrees
1171 if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
1172 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
1178 static VEC(tree,gc) *
1179 find_typenames (tree t)
1181 struct find_typenames_t ft;
1182 ft.p_set = pointer_set_create ();
1183 ft.typenames = NULL;
1184 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
1185 find_typenames_r, &ft, ft.p_set);
1186 pointer_set_destroy (ft.p_set);
1187 return ft.typenames;
1190 /* Pretty print a function decl. There are several ways we want to print a
1191 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1192 As error can only apply the '#' flag once to give 0 and 1 for V, there
1193 is %D which doesn't print the throw specs, and %F which does. */
1196 dump_function_decl (tree t, int flags)
1200 tree cname = NULL_TREE;
1201 tree template_args = NULL_TREE;
1202 tree template_parms = NULL_TREE;
1203 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1204 int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
1206 VEC(tree,gc) *typenames = NULL;
1208 flags &= ~TFF_UNQUALIFIED_NAME;
1209 if (TREE_CODE (t) == TEMPLATE_DECL)
1210 t = DECL_TEMPLATE_RESULT (t);
1212 /* Save the exceptions, in case t is a specialization and we are
1213 emitting an error about incompatible specifications. */
1214 exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
1216 /* Pretty print template instantiations only. */
1217 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
1218 && flag_pretty_templates)
1222 template_args = DECL_TI_ARGS (t);
1223 tmpl = most_general_template (t);
1224 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1226 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1228 typenames = find_typenames (t);
1232 fntype = TREE_TYPE (t);
1233 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1235 if (DECL_CLASS_SCOPE_P (t))
1236 cname = DECL_CONTEXT (t);
1237 /* This is for partially instantiated template methods. */
1238 else if (TREE_CODE (fntype) == METHOD_TYPE)
1239 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1241 if (!(flags & TFF_DECL_SPECIFIERS))
1243 else if (DECL_STATIC_FUNCTION_P (t))
1244 pp_cxx_identifier (cxx_pp, "static");
1245 else if (DECL_VIRTUAL_P (t))
1246 pp_cxx_identifier (cxx_pp, "virtual");
1248 /* Print the return type? */
1250 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1251 && !DECL_DESTRUCTOR_P (t);
1253 dump_type_prefix (TREE_TYPE (fntype), flags);
1255 /* Print the function name. */
1256 if (!do_outer_scope)
1260 dump_type (cname, flags);
1261 pp_cxx_colon_colon (cxx_pp);
1264 dump_scope (CP_DECL_CONTEXT (t), flags);
1266 dump_function_name (t, flags);
1268 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1270 dump_parameters (parmtypes, flags);
1272 if (TREE_CODE (fntype) == METHOD_TYPE)
1274 pp_base (cxx_pp)->padding = pp_before;
1275 pp_cxx_cv_qualifier_seq
1276 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1279 if (flags & TFF_EXCEPTION_SPECIFICATION)
1281 pp_base (cxx_pp)->padding = pp_before;
1282 dump_exception_spec (exceptions, flags);
1286 dump_type_suffix (TREE_TYPE (fntype), flags);
1289 /* If T is a template instantiation, dump the parameter binding. */
1290 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1292 pp_cxx_whitespace (cxx_pp);
1293 pp_cxx_left_bracket (cxx_pp);
1294 pp_cxx_identifier (cxx_pp, "with");
1295 pp_cxx_whitespace (cxx_pp);
1296 dump_template_bindings (template_parms, template_args, typenames);
1297 pp_cxx_right_bracket (cxx_pp);
1301 /* Print a parameter list. If this is for a member function, the
1302 member object ptr (and any other hidden args) should have
1303 already been removed. */
1306 dump_parameters (tree parmtypes, int flags)
1309 pp_cxx_left_paren (cxx_pp);
1311 for (first = 1; parmtypes != void_list_node;
1312 parmtypes = TREE_CHAIN (parmtypes))
1315 pp_separate_with_comma (cxx_pp);
1319 pp_cxx_identifier (cxx_pp, "...");
1323 dump_type (TREE_VALUE (parmtypes), flags);
1325 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1327 pp_cxx_whitespace (cxx_pp);
1329 pp_cxx_whitespace (cxx_pp);
1330 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1334 pp_cxx_right_paren (cxx_pp);
1337 /* Print an exception specification. T is the exception specification. */
1340 dump_exception_spec (tree t, int flags)
1344 pp_cxx_identifier (cxx_pp, "throw");
1345 pp_cxx_whitespace (cxx_pp);
1346 pp_cxx_left_paren (cxx_pp);
1347 if (TREE_VALUE (t) != NULL_TREE)
1350 dump_type (TREE_VALUE (t), flags);
1354 pp_separate_with_comma (cxx_pp);
1356 pp_cxx_right_paren (cxx_pp);
1360 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1361 and destructors properly. */
1364 dump_function_name (tree t, int flags)
1366 tree name = DECL_NAME (t);
1368 /* We can get here with a decl that was synthesized by language-
1369 independent machinery (e.g. coverage.c) in which case it won't
1370 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1371 will crash. In this case it is safe just to print out the
1373 if (!DECL_LANG_SPECIFIC (t))
1375 pp_cxx_tree_identifier (cxx_pp, name);
1379 if (TREE_CODE (t) == TEMPLATE_DECL)
1380 t = DECL_TEMPLATE_RESULT (t);
1382 /* Don't let the user see __comp_ctor et al. */
1383 if (DECL_CONSTRUCTOR_P (t)
1384 || DECL_DESTRUCTOR_P (t))
1385 name = constructor_name (DECL_CONTEXT (t));
1387 if (DECL_DESTRUCTOR_P (t))
1389 pp_cxx_complement (cxx_pp);
1390 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1392 else if (DECL_CONV_FN_P (t))
1394 /* This cannot use the hack that the operator's return
1395 type is stashed off of its name because it may be
1396 used for error reporting. In the case of conflicting
1397 declarations, both will have the same name, yet
1398 the types will be different, hence the TREE_TYPE field
1399 of the first name will be clobbered by the second. */
1400 pp_cxx_identifier (cxx_pp, "operator");
1401 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1403 else if (IDENTIFIER_OPNAME_P (name))
1404 pp_cxx_tree_identifier (cxx_pp, name);
1406 dump_decl (name, flags);
1408 if (DECL_TEMPLATE_INFO (t)
1409 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1410 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1411 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1412 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1415 /* Dump the template parameters from the template info INFO under control of
1416 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1417 specialization (partial or complete). For partial specializations we show
1418 the specialized parameter values. For a primary template we show no
1422 dump_template_parms (tree info, int primary, int flags)
1424 tree args = info ? TI_ARGS (info) : NULL_TREE;
1426 if (primary && flags & TFF_TEMPLATE_NAME)
1428 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1429 pp_cxx_begin_template_argument_list (cxx_pp);
1431 /* Be careful only to print things when we have them, so as not
1432 to crash producing error messages. */
1433 if (args && !primary)
1436 /* We don't know the parms for a friend template specialization. */
1437 tree params = (TREE_CODE (TI_TEMPLATE (info)) == TEMPLATE_DECL
1438 ? DECL_INNERMOST_TEMPLATE_PARMS (TI_TEMPLATE (info))
1441 if (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (args))
1442 args = TREE_VEC_ELT (args, TREE_VEC_LENGTH (args) - 1);
1444 len = count_non_default_template_args (args, params);
1446 for (ix = 0; ix != len; ix++)
1448 tree arg = TREE_VEC_ELT (args, ix);
1450 /* Only print a comma if we know there is an argument coming. In
1451 the case of an empty template argument pack, no actual
1452 argument will be printed. */
1454 && (!ARGUMENT_PACK_P (arg)
1455 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
1456 pp_separate_with_comma (cxx_pp);
1459 pp_identifier (cxx_pp, "<template parameter error>");
1461 dump_template_argument (arg, flags);
1466 tree tpl = TI_TEMPLATE (info);
1467 tree parms = DECL_TEMPLATE_PARMS (tpl);
1470 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1471 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1473 for (ix = 0; ix != len; ix++)
1477 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1479 pp_identifier (cxx_pp, "<template parameter error>");
1483 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1486 pp_separate_with_comma (cxx_pp);
1488 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1491 pp_cxx_end_template_argument_list (cxx_pp);
1494 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1495 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1498 dump_call_expr_args (tree t, int flags, bool skipfirst)
1501 call_expr_arg_iterator iter;
1503 pp_cxx_left_paren (cxx_pp);
1504 FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
1510 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1511 if (more_call_expr_args_p (&iter))
1512 pp_separate_with_comma (cxx_pp);
1515 pp_cxx_right_paren (cxx_pp);
1518 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1519 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1523 dump_aggr_init_expr_args (tree t, int flags, bool skipfirst)
1526 aggr_init_expr_arg_iterator iter;
1528 pp_cxx_left_paren (cxx_pp);
1529 FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
1535 dump_expr (arg, flags | TFF_EXPR_IN_PARENS);
1536 if (more_aggr_init_expr_args_p (&iter))
1537 pp_separate_with_comma (cxx_pp);
1540 pp_cxx_right_paren (cxx_pp);
1543 /* Print out a list of initializers (subr of dump_expr). */
1546 dump_expr_list (tree l, int flags)
1550 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1553 pp_separate_with_comma (cxx_pp);
1557 /* Print out a vector of initializers (subr of dump_expr). */
1560 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1562 unsigned HOST_WIDE_INT idx;
1565 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1567 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1568 if (idx != VEC_length (constructor_elt, v) - 1)
1569 pp_separate_with_comma (cxx_pp);
1574 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1575 function. Resolve it to a close relative -- in the sense of static
1576 type -- variant being overridden. That is close to what was written in
1577 the source code. Subroutine of dump_expr. */
1580 resolve_virtual_fun_from_obj_type_ref (tree ref)
1582 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1583 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1584 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1587 fun = TREE_CHAIN (fun);
1588 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1589 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1595 /* Print out an expression E under control of FLAGS. */
1598 dump_expr (tree t, int flags)
1603 if (STATEMENT_CLASS_P (t))
1605 pp_cxx_identifier (cxx_pp, "<statement>");
1609 switch (TREE_CODE (t))
1617 case NAMESPACE_DECL:
1620 case IDENTIFIER_NODE:
1621 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1628 pp_constant (cxx_pp, t);
1632 /* While waiting for caret diagnostics, avoid printing
1633 __cxa_allocate_exception, __cxa_throw, and the like. */
1634 pp_cxx_identifier (cxx_pp, "<throw-expression>");
1638 pp_ampersand (cxx_pp);
1639 dump_type (PTRMEM_CST_CLASS (t), flags);
1640 pp_cxx_colon_colon (cxx_pp);
1641 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1645 pp_cxx_left_paren (cxx_pp);
1646 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1647 pp_separate_with_comma (cxx_pp);
1648 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1649 pp_cxx_right_paren (cxx_pp);
1653 pp_cxx_left_paren (cxx_pp);
1654 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1655 pp_string (cxx_pp, " ? ");
1656 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1657 pp_string (cxx_pp, " : ");
1658 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1659 pp_cxx_right_paren (cxx_pp);
1663 if (TREE_HAS_CONSTRUCTOR (t))
1665 pp_cxx_identifier (cxx_pp, "new");
1666 pp_cxx_whitespace (cxx_pp);
1667 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1670 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1673 case AGGR_INIT_EXPR:
1675 tree fn = NULL_TREE;
1677 if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
1678 fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
1680 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1682 if (DECL_CONSTRUCTOR_P (fn))
1683 dump_type (DECL_CONTEXT (fn), flags);
1688 dump_expr (AGGR_INIT_EXPR_FN (t), 0);
1690 dump_aggr_init_expr_args (t, flags, true);
1695 tree fn = CALL_EXPR_FN (t);
1696 bool skipfirst = false;
1698 if (TREE_CODE (fn) == ADDR_EXPR)
1699 fn = TREE_OPERAND (fn, 0);
1701 /* Nobody is interested in seeing the guts of vcalls. */
1702 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1703 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1705 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1707 tree ob = CALL_EXPR_ARG (t, 0);
1708 if (TREE_CODE (ob) == ADDR_EXPR)
1710 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1711 pp_cxx_dot (cxx_pp);
1713 else if (TREE_CODE (ob) != PARM_DECL
1714 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1716 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1717 pp_cxx_arrow (cxx_pp);
1721 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1722 dump_call_expr_args (t, flags, skipfirst);
1727 /* Note that this only works for G++ target exprs. If somebody
1728 builds a general TARGET_EXPR, there's no way to represent that
1729 it initializes anything other that the parameter slot for the
1730 default argument. Note we may have cleared out the first
1731 operand in expand_expr, so don't go killing ourselves. */
1732 if (TREE_OPERAND (t, 1))
1733 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1736 case POINTER_PLUS_EXPR:
1737 dump_binary_op ("+", t, flags);
1745 case TRUNC_DIV_EXPR:
1746 case TRUNC_MOD_EXPR:
1754 case TRUTH_ANDIF_EXPR:
1755 case TRUTH_ORIF_EXPR:
1762 case EXACT_DIV_EXPR:
1763 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1767 case FLOOR_DIV_EXPR:
1768 case ROUND_DIV_EXPR:
1770 dump_binary_op ("/", t, flags);
1774 case FLOOR_MOD_EXPR:
1775 case ROUND_MOD_EXPR:
1776 dump_binary_op ("%", t, flags);
1781 tree ob = TREE_OPERAND (t, 0);
1782 if (TREE_CODE (ob) == INDIRECT_REF)
1784 ob = TREE_OPERAND (ob, 0);
1785 if (TREE_CODE (ob) != PARM_DECL
1787 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1789 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1790 pp_cxx_arrow (cxx_pp);
1795 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1796 pp_cxx_dot (cxx_pp);
1798 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1803 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1804 pp_cxx_left_bracket (cxx_pp);
1805 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1806 pp_cxx_right_bracket (cxx_pp);
1809 case UNARY_PLUS_EXPR:
1810 dump_unary_op ("+", t, flags);
1814 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1815 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1816 /* An ADDR_EXPR can have reference type. In that case, we
1817 shouldn't print the `&' doing so indicates to the user
1818 that the expression has pointer type. */
1820 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1821 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1822 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1823 dump_unary_op ("&&", t, flags);
1825 dump_unary_op ("&", t, flags);
1829 if (TREE_HAS_CONSTRUCTOR (t))
1831 t = TREE_OPERAND (t, 0);
1832 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1833 dump_expr (CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
1834 dump_call_expr_args (t, flags, true);
1838 if (TREE_OPERAND (t,0) != NULL_TREE
1839 && TREE_TYPE (TREE_OPERAND (t, 0))
1840 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1841 dump_expr (TREE_OPERAND (t, 0), flags);
1843 dump_unary_op ("*", t, flags);
1849 case TRUTH_NOT_EXPR:
1850 case PREDECREMENT_EXPR:
1851 case PREINCREMENT_EXPR:
1852 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1855 case POSTDECREMENT_EXPR:
1856 case POSTINCREMENT_EXPR:
1857 pp_cxx_left_paren (cxx_pp);
1858 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1859 pp_cxx_identifier (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1860 pp_cxx_right_paren (cxx_pp);
1863 case NON_LVALUE_EXPR:
1864 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1865 should be another level of INDIRECT_REF so that I don't have to do
1867 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1869 tree next = TREE_TYPE (TREE_TYPE (t));
1871 while (TREE_CODE (next) == POINTER_TYPE)
1872 next = TREE_TYPE (next);
1874 if (TREE_CODE (next) == FUNCTION_TYPE)
1876 if (flags & TFF_EXPR_IN_PARENS)
1877 pp_cxx_left_paren (cxx_pp);
1878 pp_cxx_star (cxx_pp);
1879 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1880 if (flags & TFF_EXPR_IN_PARENS)
1881 pp_cxx_right_paren (cxx_pp);
1884 /* Else fall through. */
1886 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1890 case VIEW_CONVERT_EXPR:
1892 tree op = TREE_OPERAND (t, 0);
1894 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1896 /* It is a cast, but we cannot tell whether it is a
1897 reinterpret or static cast. Use the C style notation. */
1898 if (flags & TFF_EXPR_IN_PARENS)
1899 pp_cxx_left_paren (cxx_pp);
1900 pp_cxx_left_paren (cxx_pp);
1901 dump_type (TREE_TYPE (t), flags);
1902 pp_cxx_right_paren (cxx_pp);
1903 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1904 if (flags & TFF_EXPR_IN_PARENS)
1905 pp_cxx_right_paren (cxx_pp);
1908 dump_expr (op, flags);
1913 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1915 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1917 if (integer_zerop (idx))
1919 /* A NULL pointer-to-member constant. */
1920 pp_cxx_left_paren (cxx_pp);
1921 pp_cxx_left_paren (cxx_pp);
1922 dump_type (TREE_TYPE (t), flags);
1923 pp_cxx_right_paren (cxx_pp);
1924 pp_character (cxx_pp, '0');
1925 pp_cxx_right_paren (cxx_pp);
1928 else if (host_integerp (idx, 0))
1931 unsigned HOST_WIDE_INT n;
1933 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1934 t = TYPE_METHOD_BASETYPE (t);
1935 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1937 n = tree_low_cst (idx, 0);
1939 /* Map vtable index back one, to allow for the null pointer to
1943 while (n > 0 && virtuals)
1946 virtuals = TREE_CHAIN (virtuals);
1950 dump_expr (BV_FN (virtuals),
1951 flags | TFF_EXPR_IN_PARENS);
1956 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
1958 dump_type (TREE_TYPE (t), 0);
1959 pp_cxx_left_paren (cxx_pp);
1960 pp_cxx_right_paren (cxx_pp);
1964 pp_cxx_left_brace (cxx_pp);
1965 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
1966 pp_cxx_right_brace (cxx_pp);
1973 tree ob = TREE_OPERAND (t, 0);
1974 if (is_dummy_object (ob))
1976 t = TREE_OPERAND (t, 1);
1977 if (TREE_CODE (t) == FUNCTION_DECL)
1979 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
1980 else if (BASELINK_P (t))
1981 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
1982 flags | TFF_EXPR_IN_PARENS);
1984 dump_decl (t, flags);
1988 if (TREE_CODE (ob) == INDIRECT_REF)
1990 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1991 pp_cxx_arrow (cxx_pp);
1992 pp_cxx_star (cxx_pp);
1996 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1997 pp_cxx_dot (cxx_pp);
1998 pp_cxx_star (cxx_pp);
2000 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2005 case TEMPLATE_PARM_INDEX:
2006 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
2010 if (TREE_OPERAND (t, 0) == NULL_TREE
2011 || TREE_CHAIN (TREE_OPERAND (t, 0)))
2013 dump_type (TREE_TYPE (t), flags);
2014 pp_cxx_left_paren (cxx_pp);
2015 dump_expr_list (TREE_OPERAND (t, 0), flags);
2016 pp_cxx_right_paren (cxx_pp);
2020 pp_cxx_left_paren (cxx_pp);
2021 dump_type (TREE_TYPE (t), flags);
2022 pp_cxx_right_paren (cxx_pp);
2023 pp_cxx_left_paren (cxx_pp);
2024 dump_expr_list (TREE_OPERAND (t, 0), flags);
2025 pp_cxx_right_paren (cxx_pp);
2029 case STATIC_CAST_EXPR:
2030 pp_cxx_identifier (cxx_pp, "static_cast");
2032 case REINTERPRET_CAST_EXPR:
2033 pp_cxx_identifier (cxx_pp, "reinterpret_cast");
2035 case CONST_CAST_EXPR:
2036 pp_cxx_identifier (cxx_pp, "const_cast");
2038 case DYNAMIC_CAST_EXPR:
2039 pp_cxx_identifier (cxx_pp, "dynamic_cast");
2041 pp_cxx_begin_template_argument_list (cxx_pp);
2042 dump_type (TREE_TYPE (t), flags);
2043 pp_cxx_end_template_argument_list (cxx_pp);
2044 pp_cxx_left_paren (cxx_pp);
2045 dump_expr (TREE_OPERAND (t, 0), flags);
2046 pp_cxx_right_paren (cxx_pp);
2050 dump_expr (TREE_OPERAND (t, 0), flags);
2051 pp_cxx_arrow (cxx_pp);
2056 if (TREE_CODE (t) == SIZEOF_EXPR)
2057 pp_cxx_identifier (cxx_pp, "sizeof");
2060 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
2061 pp_cxx_identifier (cxx_pp, "__alignof__");
2063 pp_cxx_whitespace (cxx_pp);
2064 pp_cxx_left_paren (cxx_pp);
2065 if (TYPE_P (TREE_OPERAND (t, 0)))
2066 dump_type (TREE_OPERAND (t, 0), flags);
2068 dump_expr (TREE_OPERAND (t, 0), flags);
2069 pp_cxx_right_paren (cxx_pp);
2074 pp_cxx_identifier (cxx_pp, operator_name_info[TREE_CODE (t)].name);
2075 pp_cxx_whitespace (cxx_pp);
2076 dump_expr (TREE_OPERAND (t, 0), flags);
2080 pp_identifier (cxx_pp, "<unparsed>");
2083 case TRY_CATCH_EXPR:
2084 case WITH_CLEANUP_EXPR:
2085 case CLEANUP_POINT_EXPR:
2086 dump_expr (TREE_OPERAND (t, 0), flags);
2089 case PSEUDO_DTOR_EXPR:
2090 dump_expr (TREE_OPERAND (t, 2), flags);
2091 pp_cxx_dot (cxx_pp);
2092 dump_type (TREE_OPERAND (t, 0), flags);
2093 pp_cxx_colon_colon (cxx_pp);
2094 pp_cxx_complement (cxx_pp);
2095 dump_type (TREE_OPERAND (t, 1), flags);
2098 case TEMPLATE_ID_EXPR:
2099 dump_decl (t, flags);
2105 case STATEMENT_LIST:
2106 /* We don't yet have a way of dumping statements in a
2107 human-readable format. */
2108 pp_string (cxx_pp, "({...})");
2112 pp_string (cxx_pp, "while (1) { ");
2113 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2114 pp_cxx_right_brace (cxx_pp);
2118 pp_string (cxx_pp, "if (");
2119 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2120 pp_string (cxx_pp, ") break; ");
2124 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
2127 case EMPTY_CLASS_EXPR:
2128 dump_type (TREE_TYPE (t), flags);
2129 pp_cxx_left_paren (cxx_pp);
2130 pp_cxx_right_paren (cxx_pp);
2133 case NON_DEPENDENT_EXPR:
2134 dump_expr (TREE_OPERAND (t, 0), flags);
2137 case ARGUMENT_PACK_SELECT:
2138 dump_template_argument (ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
2150 pp_type_specifier_seq (cxx_pp, t);
2154 /* We get here when we want to print a dependent type as an
2155 id-expression, without any disambiguator decoration. */
2156 pp_id_expression (cxx_pp, t);
2159 case TEMPLATE_TYPE_PARM:
2160 case BOUND_TEMPLATE_TEMPLATE_PARM:
2161 dump_type (t, flags);
2165 pp_cxx_trait_expression (cxx_pp, t);
2169 pp_cxx_va_arg_expression (cxx_pp, t);
2173 pp_cxx_offsetof_expression (cxx_pp, t);
2177 case EXPR_PACK_EXPANSION:
2184 case VEC_DELETE_EXPR:
2190 case UNORDERED_EXPR:
2200 case FIX_TRUNC_EXPR:
2202 pp_expression (cxx_pp, t);
2205 case TRUTH_AND_EXPR:
2207 case TRUTH_XOR_EXPR:
2208 if (flags & TFF_EXPR_IN_PARENS)
2209 pp_cxx_left_paren (cxx_pp);
2210 pp_expression (cxx_pp, t);
2211 if (flags & TFF_EXPR_IN_PARENS)
2212 pp_cxx_right_paren (cxx_pp);
2216 dump_expr (resolve_virtual_fun_from_obj_type_ref (t), flags);
2219 /* This list is incomplete, but should suffice for now.
2220 It is very important that `sorry' does not call
2221 `report_error_function'. That could cause an infinite loop. */
2223 pp_unsupported_tree (cxx_pp, t);
2224 /* fall through to ERROR_MARK... */
2226 pp_identifier (cxx_pp, "<expression error>");
2232 dump_binary_op (const char *opstring, tree t, int flags)
2234 pp_cxx_left_paren (cxx_pp);
2235 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
2236 pp_cxx_whitespace (cxx_pp);
2238 pp_cxx_identifier (cxx_pp, opstring);
2240 pp_identifier (cxx_pp, "<unknown operator>");
2241 pp_cxx_whitespace (cxx_pp);
2242 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
2243 pp_cxx_right_paren (cxx_pp);
2247 dump_unary_op (const char *opstring, tree t, int flags)
2249 if (flags & TFF_EXPR_IN_PARENS)
2250 pp_cxx_left_paren (cxx_pp);
2251 pp_cxx_identifier (cxx_pp, opstring);
2252 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
2253 if (flags & TFF_EXPR_IN_PARENS)
2254 pp_cxx_right_paren (cxx_pp);
2258 reinit_cxx_pp (void)
2260 pp_clear_output_area (cxx_pp);
2261 pp_base (cxx_pp)->padding = pp_none;
2262 pp_indentation (cxx_pp) = 0;
2263 pp_needs_newline (cxx_pp) = false;
2264 cxx_pp->enclosing_scope = current_function_decl;
2268 /* Exported interface to stringifying types, exprs and decls under TFF_*
2272 type_as_string (tree typ, int flags)
2275 dump_type (typ, flags);
2276 return pp_formatted_text (cxx_pp);
2280 expr_as_string (tree decl, int flags)
2283 dump_expr (decl, flags);
2284 return pp_formatted_text (cxx_pp);
2288 decl_as_string (tree decl, int flags)
2291 dump_decl (decl, flags);
2292 return pp_formatted_text (cxx_pp);
2295 /* Generate the three forms of printable names for cxx_printable_name. */
2298 lang_decl_name (tree decl, int v)
2301 return decl_as_string (decl, TFF_DECL_SPECIFIERS);
2304 if (v == 1 && DECL_CLASS_SCOPE_P (decl))
2306 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
2307 pp_cxx_colon_colon (cxx_pp);
2310 if (TREE_CODE (decl) == FUNCTION_DECL)
2311 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
2313 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
2315 return pp_formatted_text (cxx_pp);
2318 /* Return the location of a tree passed to %+ formats. */
2321 location_of (tree t)
2323 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2324 t = DECL_CONTEXT (t);
2325 else if (TYPE_P (t))
2326 t = TYPE_MAIN_DECL (t);
2327 else if (TREE_CODE (t) == OVERLOAD)
2328 t = OVL_FUNCTION (t);
2330 return DECL_SOURCE_LOCATION (t);
2333 /* Now the interfaces from error et al to dump_type et al. Each takes an
2334 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2338 decl_to_string (tree decl, int verbose)
2342 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2343 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2344 flags = TFF_CLASS_KEY_OR_ENUM;
2346 flags |= TFF_DECL_SPECIFIERS;
2347 else if (TREE_CODE (decl) == FUNCTION_DECL)
2348 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2349 flags |= TFF_TEMPLATE_HEADER;
2352 dump_decl (decl, flags);
2353 return pp_formatted_text (cxx_pp);
2357 expr_to_string (tree decl)
2360 dump_expr (decl, 0);
2361 return pp_formatted_text (cxx_pp);
2365 fndecl_to_string (tree fndecl, int verbose)
2369 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2370 | TFF_TEMPLATE_HEADER;
2372 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2374 dump_decl (fndecl, flags);
2375 return pp_formatted_text (cxx_pp);
2380 code_to_string (enum tree_code c)
2382 return tree_code_name [c];
2386 language_to_string (enum languages c)
2393 case lang_cplusplus:
2405 /* Return the proper printed version of a parameter to a C++ function. */
2408 parm_to_string (int p)
2412 pp_string (cxx_pp, "'this'");
2414 pp_decimal_int (cxx_pp, p + 1);
2415 return pp_formatted_text (cxx_pp);
2419 op_to_string (enum tree_code p)
2421 tree id = operator_name_info[(int) p].identifier;
2422 return id ? IDENTIFIER_POINTER (id) : "<unknown>";
2426 type_to_string (tree typ, int verbose)
2430 flags |= TFF_CLASS_KEY_OR_ENUM;
2431 flags |= TFF_TEMPLATE_HEADER;
2434 dump_type (typ, flags);
2435 return pp_formatted_text (cxx_pp);
2439 assop_to_string (enum tree_code p)
2441 tree id = assignment_operator_name_info[(int) p].identifier;
2442 return id ? IDENTIFIER_POINTER (id) : "{unknown}";
2446 args_to_string (tree p, int verbose)
2450 flags |= TFF_CLASS_KEY_OR_ENUM;
2455 if (TYPE_P (TREE_VALUE (p)))
2456 return type_as_string (p, flags);
2459 for (; p; p = TREE_CHAIN (p))
2461 if (TREE_VALUE (p) == null_node)
2462 pp_cxx_identifier (cxx_pp, "NULL");
2464 dump_type (error_type (TREE_VALUE (p)), flags);
2466 pp_separate_with_comma (cxx_pp);
2468 return pp_formatted_text (cxx_pp);
2472 cv_to_string (tree p, int v)
2475 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2476 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2477 return pp_formatted_text (cxx_pp);
2480 /* Langhook for print_error_function. */
2482 cxx_print_error_function (diagnostic_context *context, const char *file,
2483 diagnostic_info *diagnostic)
2485 lhd_print_error_function (context, file, diagnostic);
2486 pp_base_set_prefix (context->printer, file);
2487 maybe_print_instantiation_context (context);
2491 cp_diagnostic_starter (diagnostic_context *context,
2492 diagnostic_info *diagnostic)
2494 diagnostic_report_current_module (context);
2495 cp_print_error_function (context, diagnostic);
2496 maybe_print_instantiation_context (context);
2497 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2501 cp_diagnostic_finalizer (diagnostic_context *context,
2502 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2504 pp_base_destroy_prefix (context->printer);
2507 /* Print current function onto BUFFER, in the process of reporting
2508 a diagnostic message. Called from cp_diagnostic_starter. */
2510 cp_print_error_function (diagnostic_context *context,
2511 diagnostic_info *diagnostic)
2513 if (diagnostic_last_function_changed (context, diagnostic))
2515 const char *old_prefix = context->printer->prefix;
2516 const char *file = LOCATION_FILE (diagnostic->location);
2517 tree abstract_origin = diagnostic->abstract_origin;
2518 char *new_prefix = (file && abstract_origin == NULL)
2519 ? file_name_as_prefix (file) : NULL;
2521 pp_base_set_prefix (context->printer, new_prefix);
2523 if (current_function_decl == NULL)
2524 pp_base_string (context->printer, "At global scope:");
2529 if (abstract_origin)
2531 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
2532 while (TREE_CODE (ao) == BLOCK
2533 && BLOCK_ABSTRACT_ORIGIN (ao)
2534 && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
2535 ao = BLOCK_ABSTRACT_ORIGIN (ao);
2536 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
2540 fndecl = current_function_decl;
2542 pp_printf (context->printer, "In %s %qs",
2543 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. */
2621 function_category (tree fn)
2623 if (DECL_FUNCTION_MEMBER_P (fn))
2625 if (DECL_STATIC_FUNCTION_P (fn))
2626 return "static member function";
2627 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2628 return "copy constructor";
2629 else if (DECL_CONSTRUCTOR_P (fn))
2630 return "constructor";
2631 else if (DECL_DESTRUCTOR_P (fn))
2632 return "destructor";
2634 return "member function";
2640 /* Report the full context of a current template instantiation,
2643 print_instantiation_full_context (diagnostic_context *context)
2645 struct tinst_level *p = current_instantiation ();
2646 location_t location = input_location;
2650 if (current_function_decl != p->decl
2651 && current_function_decl != NULL_TREE)
2652 /* We can get here during the processing of some synthesized
2653 method. Then, P->DECL will be the function that's causing
2658 if (current_function_decl == p->decl)
2659 /* Avoid redundancy with the "In function" line. */;
2661 pp_verbatim (context->printer,
2662 "%s: In instantiation of %qs:\n",
2663 LOCATION_FILE (location),
2664 decl_as_string (p->decl,
2665 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2667 location = p->locus;
2672 print_instantiation_partial_context (context, p, location);
2675 /* Same as above but less verbose. */
2677 print_instantiation_partial_context (diagnostic_context *context,
2678 struct tinst_level *t, location_t loc)
2680 expanded_location xloc;
2681 for (; ; t = t->next)
2683 xloc = expand_location (loc);
2686 pp_verbatim (context->printer, "%s:%d: instantiated from %qs\n",
2687 xloc.file, xloc.line,
2688 decl_as_string (t->decl,
2689 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2692 pp_verbatim (context->printer, "%s:%d: instantiated from here",
2693 xloc.file, xloc.line);
2694 pp_base_newline (context->printer);
2697 /* Called from cp_thing to print the template context for an error. */
2699 maybe_print_instantiation_context (diagnostic_context *context)
2701 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2704 record_last_problematic_instantiation ();
2705 print_instantiation_full_context (context);
2708 /* Report the bare minimum context of a template instantiation. */
2710 print_instantiation_context (void)
2712 print_instantiation_partial_context
2713 (global_dc, current_instantiation (), input_location);
2714 diagnostic_flush_buffer (global_dc);
2717 /* Called from output_format -- during diagnostic message processing --
2718 to handle C++ specific format specifier with the following meanings:
2719 %A function argument-list.
2723 %F function declaration.
2724 %L language as used in extern "lang".
2726 %P function parameter whose position is indicated by an integer.
2727 %Q assignment operator.
2731 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
2732 int precision, bool wide, bool set_locus, bool verbose)
2736 #define next_tree (t = va_arg (*text->args_ptr, tree))
2737 #define next_tcode va_arg (*text->args_ptr, enum tree_code)
2738 #define next_lang va_arg (*text->args_ptr, enum languages)
2739 #define next_int va_arg (*text->args_ptr, int)
2741 if (precision != 0 || wide)
2744 if (text->locus == NULL)
2749 case 'A': result = args_to_string (next_tree, verbose); break;
2750 case 'C': result = code_to_string (next_tcode); break;
2753 tree temp = next_tree;
2755 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
2757 temp = DECL_DEBUG_EXPR (temp);
2760 result = expr_to_string (temp);
2764 result = decl_to_string (temp, verbose);
2767 case 'E': result = expr_to_string (next_tree); break;
2768 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2769 case 'L': result = language_to_string (next_lang); break;
2770 case 'O': result = op_to_string (next_tcode); break;
2771 case 'P': result = parm_to_string (next_int); break;
2772 case 'Q': result = assop_to_string (next_tcode); break;
2773 case 'T': result = type_to_string (next_tree, verbose); break;
2774 case 'V': result = cv_to_string (next_tree, verbose); break;
2780 pp_base_string (pp, result);
2781 if (set_locus && t != NULL)
2782 *text->locus = location_of (t);
2790 /* Warn about the use of C++0x features when appropriate. */
2792 maybe_warn_cpp0x (const char* str)
2794 if ((cxx_dialect == cxx98) && !in_system_header)
2795 /* We really want to suppress this warning in system headers,
2796 because libstdc++ uses variadic templates even when we aren't
2798 pedwarn (input_location, 0, "%s only available with -std=c++0x or -std=gnu++0x", str);
2801 /* Warn about the use of variadic templates when appropriate. */
2803 maybe_warn_variadic_templates (void)
2805 maybe_warn_cpp0x ("variadic templates");