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 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 2, 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 COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
24 #include "coretypes.h"
31 #include "diagnostic.h"
32 #include "langhooks-def.h"
33 #include "cxx-pretty-print.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_expr_list (tree, int);
70 static void dump_global_iord (tree);
71 static void dump_parameters (tree, int);
72 static void dump_exception_spec (tree, int);
73 static void dump_template_argument (tree, int);
74 static void dump_template_argument_list (tree, int);
75 static void dump_template_parameter (tree, int);
76 static void dump_template_bindings (tree, tree);
77 static void dump_scope (tree, int);
78 static void dump_template_parms (tree, int, int);
80 static const char *function_category (tree);
81 static void maybe_print_instantiation_context (diagnostic_context *);
82 static void print_instantiation_full_context (diagnostic_context *);
83 static void print_instantiation_partial_context (diagnostic_context *,
85 static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
86 static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
87 static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
89 static bool cp_printer (pretty_printer *, text_info *, const char *,
90 int, bool, bool, bool);
91 static location_t location_of (tree);
96 diagnostic_starter (global_dc) = cp_diagnostic_starter;
97 diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
98 diagnostic_format_decoder (global_dc) = cp_printer;
100 pp_construct (pp_base (cxx_pp), NULL, 0);
101 pp_cxx_pretty_printer_init (cxx_pp);
104 /* Dump a scope, if deemed necessary. */
107 dump_scope (tree scope, int flags)
109 int f = ~TFF_RETURN_TYPE & (flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF));
111 if (scope == NULL_TREE)
114 if (TREE_CODE (scope) == NAMESPACE_DECL)
116 if (scope != global_namespace)
118 dump_decl (scope, f);
119 pp_cxx_colon_colon (cxx_pp);
122 else if (AGGREGATE_TYPE_P (scope))
124 dump_type (scope, f);
125 pp_cxx_colon_colon (cxx_pp);
127 else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
129 dump_function_decl (scope, f);
130 pp_cxx_colon_colon (cxx_pp);
134 /* Dump the template ARGument under control of FLAGS. */
137 dump_template_argument (tree arg, int flags)
139 if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
140 dump_type (arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
142 dump_expr (arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
145 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
149 dump_template_argument_list (tree args, int flags)
151 int n = TREE_VEC_LENGTH (args);
155 for (i = 0; i< n; ++i)
158 pp_separate_with_comma (cxx_pp);
159 dump_template_argument (TREE_VEC_ELT (args, i), flags);
164 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
167 dump_template_parameter (tree parm, int flags)
172 if (parm == error_mark_node)
175 p = TREE_VALUE (parm);
176 a = TREE_PURPOSE (parm);
178 if (TREE_CODE (p) == TYPE_DECL)
180 if (flags & TFF_DECL_SPECIFIERS)
182 pp_cxx_identifier (cxx_pp, "class");
184 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
186 else if (DECL_NAME (p))
187 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (p));
189 pp_cxx_canonical_template_parameter (cxx_pp, TREE_TYPE (p));
192 dump_decl (p, flags | TFF_DECL_SPECIFIERS);
194 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
196 pp_cxx_whitespace (cxx_pp);
198 pp_cxx_whitespace (cxx_pp);
199 if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
200 dump_type (a, flags & ~TFF_CHASE_TYPEDEF);
202 dump_expr (a, flags | TFF_EXPR_IN_PARENS);
206 /* Dump, under control of FLAGS, a template-parameter-list binding.
207 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
211 dump_template_bindings (tree parms, tree args)
217 tree p = TREE_VALUE (parms);
218 int lvl = TMPL_PARMS_DEPTH (parms);
222 for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
224 tree arg = NULL_TREE;
226 /* Don't crash if we had an invalid argument list. */
227 if (TMPL_ARGS_DEPTH (args) >= lvl)
229 tree lvl_args = TMPL_ARGS_LEVEL (args, lvl);
230 if (NUM_TMPL_ARGS (lvl_args) > arg_idx)
231 arg = TREE_VEC_ELT (lvl_args, arg_idx);
235 pp_separate_with_comma (cxx_pp);
236 dump_template_parameter (TREE_VEC_ELT (p, i), TFF_PLAIN_IDENTIFIER);
237 pp_cxx_whitespace (cxx_pp);
239 pp_cxx_whitespace (cxx_pp);
241 dump_template_argument (arg, TFF_PLAIN_IDENTIFIER);
243 pp_identifier (cxx_pp, "<missing>");
249 parms = TREE_CHAIN (parms);
253 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
257 dump_type (tree t, int flags)
262 if (TYPE_PTRMEMFUNC_P (t))
265 switch (TREE_CODE (t))
268 pp_identifier (cxx_pp, "<unresolved overloaded function type>");
272 /* A list of function parms. */
273 dump_parameters (t, flags);
276 case IDENTIFIER_NODE:
277 pp_cxx_tree_identifier (cxx_pp, t);
281 dump_type (BINFO_TYPE (t), flags);
287 dump_aggr_type (t, flags);
291 if (flags & TFF_CHASE_TYPEDEF)
293 dump_type (DECL_ORIGINAL_TYPE (t)
294 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
297 /* Else fall through. */
301 dump_decl (t, flags & ~TFF_DECL_SPECIFIERS);
310 pp_type_specifier_seq (cxx_pp, t);
313 case TEMPLATE_TEMPLATE_PARM:
314 /* For parameters inside template signature. */
315 if (TYPE_IDENTIFIER (t))
316 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
318 pp_cxx_canonical_template_parameter (cxx_pp, t);
321 case BOUND_TEMPLATE_TEMPLATE_PARM:
323 tree args = TYPE_TI_ARGS (t);
324 pp_cxx_cv_qualifier_seq (cxx_pp, t);
325 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
326 pp_cxx_begin_template_argument_list (cxx_pp);
327 dump_template_argument_list (args, flags);
328 pp_cxx_end_template_argument_list (cxx_pp);
332 case TEMPLATE_TYPE_PARM:
333 pp_cxx_cv_qualifier_seq (cxx_pp, t);
334 if (TYPE_IDENTIFIER (t))
335 pp_cxx_tree_identifier (cxx_pp, TYPE_IDENTIFIER (t));
337 pp_cxx_canonical_template_parameter
338 (cxx_pp, TEMPLATE_TYPE_PARM_INDEX (t));
341 /* This is not always necessary for pointers and such, but doing this
342 reduces code size. */
351 dump_type_prefix (t, flags);
352 dump_type_suffix (t, flags);
356 pp_cxx_cv_qualifier_seq (cxx_pp, t);
357 pp_cxx_identifier (cxx_pp,
358 TYPENAME_IS_ENUM_P (t) ? "enum"
359 : TYPENAME_IS_CLASS_P (t) ? "class"
361 dump_typename (t, flags);
364 case UNBOUND_CLASS_TEMPLATE:
365 dump_type (TYPE_CONTEXT (t), flags);
366 pp_cxx_colon_colon (cxx_pp);
367 pp_cxx_identifier (cxx_pp, "template");
368 dump_type (DECL_NAME (TYPE_NAME (t)), flags);
372 pp_cxx_identifier (cxx_pp, "__typeof__");
373 pp_cxx_whitespace (cxx_pp);
374 pp_cxx_left_paren (cxx_pp);
375 dump_expr (TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
376 pp_cxx_right_paren (cxx_pp);
380 pp_unsupported_tree (cxx_pp, t);
381 /* Fall through to error. */
384 pp_identifier (cxx_pp, "<type error>");
389 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
393 dump_typename (tree t, int flags)
395 tree ctx = TYPE_CONTEXT (t);
397 if (TREE_CODE (ctx) == TYPENAME_TYPE)
398 dump_typename (ctx, flags);
400 dump_type (ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
401 pp_cxx_colon_colon (cxx_pp);
402 dump_decl (TYPENAME_TYPE_FULLNAME (t), flags);
405 /* Return the name of the supplied aggregate, or enumeral type. */
408 class_key_or_enum_as_string (tree t)
410 if (TREE_CODE (t) == ENUMERAL_TYPE)
412 else if (TREE_CODE (t) == UNION_TYPE)
414 else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
420 /* Print out a class declaration T under the control of FLAGS,
421 in the form `class foo'. */
424 dump_aggr_type (tree t, int flags)
427 const char *variety = class_key_or_enum_as_string (t);
431 pp_cxx_cv_qualifier_seq (cxx_pp, t);
433 if (flags & TFF_CLASS_KEY_OR_ENUM)
434 pp_cxx_identifier (cxx_pp, variety);
436 if (flags & TFF_CHASE_TYPEDEF)
437 t = TYPE_MAIN_VARIANT (t);
439 name = TYPE_NAME (t);
443 typdef = !DECL_ARTIFICIAL (name);
444 tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
445 && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
446 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
447 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
448 dump_scope (CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
451 /* Because the template names are mangled, we have to locate
452 the most general template, and use that name. */
453 tree tpl = CLASSTYPE_TI_TEMPLATE (t);
455 while (DECL_TEMPLATE_INFO (tpl))
456 tpl = DECL_TI_TEMPLATE (tpl);
459 name = DECL_NAME (name);
462 if (name == 0 || ANON_AGGRNAME_P (name))
464 if (flags & TFF_CLASS_KEY_OR_ENUM)
465 pp_identifier (cxx_pp, "<anonymous>");
467 pp_printf (pp_base (cxx_pp), "<anonymous %s>", variety);
470 pp_cxx_tree_identifier (cxx_pp, name);
472 dump_template_parms (TYPE_TEMPLATE_INFO (t),
473 !CLASSTYPE_USE_TEMPLATE (t),
474 flags & ~TFF_TEMPLATE_HEADER);
477 /* Dump into the obstack the initial part of the output for a given type.
478 This is necessary when dealing with things like functions returning
481 return type of `int (* fee ())()': pointer -> function -> int. Both
482 pointer (and reference and offset) and function (and member) types must
483 deal with prefix and suffix.
485 Arrays must also do this for DECL nodes, like int a[], and for things like
489 dump_type_prefix (tree t, int flags)
491 if (TYPE_PTRMEMFUNC_P (t))
493 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
497 switch (TREE_CODE (t))
502 tree sub = TREE_TYPE (t);
504 dump_type_prefix (sub, flags);
505 if (TREE_CODE (sub) == ARRAY_TYPE)
507 pp_cxx_whitespace (cxx_pp);
508 pp_cxx_left_paren (cxx_pp);
510 pp_character (cxx_pp, "&*"[TREE_CODE (t) == POINTER_TYPE]);
511 pp_base (cxx_pp)->padding = pp_before;
512 pp_cxx_cv_qualifier_seq (cxx_pp, t);
518 dump_type_prefix (TREE_TYPE (t), flags);
519 if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
521 pp_maybe_space (cxx_pp);
522 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
523 pp_cxx_left_paren (cxx_pp);
524 dump_type (TYPE_OFFSET_BASETYPE (t), flags);
525 pp_cxx_colon_colon (cxx_pp);
527 pp_cxx_star (cxx_pp);
528 pp_cxx_cv_qualifier_seq (cxx_pp, t);
529 pp_base (cxx_pp)->padding = pp_before;
532 /* Can only be reached through function pointer -- this would not be
533 correct if FUNCTION_DECLs used it. */
535 dump_type_prefix (TREE_TYPE (t), flags);
536 pp_maybe_space (cxx_pp);
537 pp_cxx_left_paren (cxx_pp);
541 dump_type_prefix (TREE_TYPE (t), flags);
542 pp_maybe_space (cxx_pp);
543 pp_cxx_left_paren (cxx_pp);
544 dump_aggr_type (TYPE_METHOD_BASETYPE (t), flags);
545 pp_cxx_colon_colon (cxx_pp);
549 dump_type_prefix (TREE_TYPE (t), flags);
553 case IDENTIFIER_NODE:
558 case TEMPLATE_TYPE_PARM:
559 case TEMPLATE_TEMPLATE_PARM:
560 case BOUND_TEMPLATE_TEMPLATE_PARM:
571 dump_type (t, flags);
572 pp_base (cxx_pp)->padding = pp_before;
576 pp_unsupported_tree (cxx_pp, t);
579 pp_identifier (cxx_pp, "<typeprefixerror>");
584 /* Dump the suffix of type T, under control of FLAGS. This is the part
585 which appears after the identifier (or function parms). */
588 dump_type_suffix (tree t, int flags)
590 if (TYPE_PTRMEMFUNC_P (t))
591 t = TYPE_PTRMEMFUNC_FN_TYPE (t);
593 switch (TREE_CODE (t))
598 if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
599 pp_cxx_right_paren (cxx_pp);
600 dump_type_suffix (TREE_TYPE (t), flags);
603 /* Can only be reached through function pointer. */
608 pp_cxx_right_paren (cxx_pp);
609 arg = TYPE_ARG_TYPES (t);
610 if (TREE_CODE (t) == METHOD_TYPE)
611 arg = TREE_CHAIN (arg);
613 /* Function pointers don't have default args. Not in standard C++,
614 anyway; they may in g++, but we'll just pretend otherwise. */
615 dump_parameters (arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
617 if (TREE_CODE (t) == METHOD_TYPE)
618 pp_cxx_cv_qualifier_seq
619 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (t))));
621 pp_cxx_cv_qualifier_seq(cxx_pp, t);
622 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (t), flags);
623 dump_type_suffix (TREE_TYPE (t), flags);
628 pp_maybe_space (cxx_pp);
629 pp_cxx_left_bracket (cxx_pp);
632 if (host_integerp (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0))
634 (cxx_pp, tree_low_cst (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0) + 1);
635 else if (TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (t))) == MINUS_EXPR)
636 dump_expr (TREE_OPERAND (TYPE_MAX_VALUE (TYPE_DOMAIN (t)), 0),
637 flags & ~TFF_EXPR_IN_PARENS);
639 dump_expr (fold (cp_build_binary_op
640 (PLUS_EXPR, TYPE_MAX_VALUE (TYPE_DOMAIN (t)),
642 flags & ~TFF_EXPR_IN_PARENS);
644 pp_cxx_right_bracket (cxx_pp);
645 dump_type_suffix (TREE_TYPE (t), flags);
649 case IDENTIFIER_NODE:
654 case TEMPLATE_TYPE_PARM:
655 case TEMPLATE_TEMPLATE_PARM:
656 case BOUND_TEMPLATE_TEMPLATE_PARM:
670 pp_unsupported_tree (cxx_pp, t);
672 /* Don't mark it here, we should have already done in
679 dump_global_iord (tree t)
681 const char *p = NULL;
683 if (DECL_GLOBAL_CTOR_P (t))
685 else if (DECL_GLOBAL_DTOR_P (t))
690 pp_printf (pp_base (cxx_pp), "(static %s for %s)", p, input_filename);
694 dump_simple_decl (tree t, tree type, int flags)
696 if (flags & TFF_DECL_SPECIFIERS)
698 dump_type_prefix (type, flags);
699 pp_maybe_space (cxx_pp);
701 if (!DECL_INITIAL (t) || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX)
702 dump_scope (CP_DECL_CONTEXT (t), flags);
704 dump_decl (DECL_NAME (t), flags);
706 pp_identifier (cxx_pp, "<anonymous>");
707 if (flags & TFF_DECL_SPECIFIERS)
708 dump_type_suffix (type, flags);
711 /* Dump a human readable string for the decl T under control of FLAGS. */
714 dump_decl (tree t, int flags)
719 switch (TREE_CODE (t))
722 /* Don't say 'typedef class A' */
723 if (DECL_ARTIFICIAL (t))
725 if ((flags & TFF_DECL_SPECIFIERS)
726 && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
727 /* Say `class T' not just `T'. */
728 pp_cxx_identifier (cxx_pp, "class");
730 dump_type (TREE_TYPE (t), flags);
733 if (flags & TFF_DECL_SPECIFIERS)
734 pp_cxx_identifier (cxx_pp, "typedef");
735 dump_simple_decl (t, DECL_ORIGINAL_TYPE (t)
736 ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
741 if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
743 pp_string (cxx_pp, "vtable for ");
744 gcc_assert (TYPE_P (DECL_CONTEXT (t)));
745 dump_type (DECL_CONTEXT (t), flags);
748 /* Else fall through. */
751 dump_simple_decl (t, TREE_TYPE (t), flags);
755 pp_string (cxx_pp, "<return value> ");
756 dump_simple_decl (t, TREE_TYPE (t), flags);
760 if (flags & TFF_DECL_SPECIFIERS)
761 pp_cxx_declaration (cxx_pp, t);
764 dump_scope (CP_DECL_CONTEXT (t), flags);
765 if (DECL_NAME (t) == NULL_TREE)
766 pp_identifier (cxx_pp, "<unnamed>");
768 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
773 pp_expression (cxx_pp, t);
777 dump_decl (TREE_OPERAND (t, 0), flags);
778 pp_cxx_left_bracket (cxx_pp);
779 dump_decl (TREE_OPERAND (t, 1), flags);
780 pp_cxx_right_bracket (cxx_pp);
783 /* So that we can do dump_decl on an aggr type. */
787 dump_type (t, flags);
791 /* This is a pseudo destructor call which has not been folded into
792 a PSEUDO_DTOR_EXPR yet. */
793 pp_cxx_complement (cxx_pp);
794 dump_type (TREE_OPERAND (t, 0), flags);
801 /* These special cases are duplicated here so that other functions
802 can feed identifiers to error and get them demangled properly. */
803 case IDENTIFIER_NODE:
804 if (IDENTIFIER_TYPENAME_P (t))
806 pp_cxx_identifier (cxx_pp, "operator");
807 /* Not exactly IDENTIFIER_TYPE_VALUE. */
808 dump_type (TREE_TYPE (t), flags);
812 pp_cxx_tree_identifier (cxx_pp, t);
819 if (DECL_CLASS_SCOPE_P (t))
821 dump_type (DECL_CONTEXT (t), flags);
822 pp_cxx_colon_colon (cxx_pp);
824 else if (DECL_CONTEXT (t))
826 dump_decl (DECL_CONTEXT (t), flags);
827 pp_cxx_colon_colon (cxx_pp);
829 dump_decl (DECL_NAME (t), flags);
833 /* If there's only one function, just treat it like an ordinary
839 if (! DECL_LANG_SPECIFIC (t))
840 pp_identifier (cxx_pp, "<built-in>");
841 else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
842 dump_global_iord (t);
844 dump_function_decl (t, flags);
848 dump_template_decl (t, flags);
851 case TEMPLATE_ID_EXPR:
853 tree name = TREE_OPERAND (t, 0);
855 if (is_overloaded_fn (name))
856 name = DECL_NAME (get_first_fn (name));
857 dump_decl (name, flags);
858 pp_cxx_begin_template_argument_list (cxx_pp);
859 if (TREE_OPERAND (t, 1))
860 dump_template_argument_list (TREE_OPERAND (t, 1), flags);
861 pp_cxx_end_template_argument_list (cxx_pp);
866 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (t));
870 if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
871 || (DECL_INITIAL (t) &&
872 TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
873 dump_simple_decl (t, TREE_TYPE (t), flags);
874 else if (DECL_NAME (t))
875 dump_decl (DECL_NAME (t), flags);
876 else if (DECL_INITIAL (t))
877 dump_expr (DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
879 pp_identifier (cxx_pp, "<enumerator>");
883 pp_cxx_identifier (cxx_pp, "using");
884 dump_type (USING_DECL_SCOPE (t), flags);
885 pp_cxx_colon_colon (cxx_pp);
886 dump_decl (DECL_NAME (t), flags);
890 dump_decl (BASELINK_FUNCTIONS (t), flags);
893 case NON_DEPENDENT_EXPR:
894 dump_expr (t, flags);
897 case TEMPLATE_TYPE_PARM:
898 if (flags & TFF_DECL_SPECIFIERS)
899 pp_cxx_declaration (cxx_pp, t);
901 pp_type_id (cxx_pp, t);
904 case UNBOUND_CLASS_TEMPLATE:
905 dump_type (t, flags);
909 pp_unsupported_tree (cxx_pp, t);
910 /* Fall through to error. */
913 pp_identifier (cxx_pp, "<declaration error>");
918 /* Dump a template declaration T under control of FLAGS. This means the
919 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
922 dump_template_decl (tree t, int flags)
924 tree orig_parms = DECL_TEMPLATE_PARMS (t);
928 if (flags & TFF_TEMPLATE_HEADER)
930 for (parms = orig_parms = nreverse (orig_parms);
932 parms = TREE_CHAIN (parms))
934 tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
935 int len = TREE_VEC_LENGTH (inner_parms);
937 pp_cxx_identifier (cxx_pp, "template");
938 pp_cxx_begin_template_argument_list (cxx_pp);
940 /* If we've shown the template prefix, we'd better show the
941 parameters' and decl's type too. */
942 flags |= TFF_DECL_SPECIFIERS;
944 for (i = 0; i < len; i++)
947 pp_separate_with_comma (cxx_pp);
948 dump_template_parameter (TREE_VEC_ELT (inner_parms, i), flags);
950 pp_cxx_end_template_argument_list (cxx_pp);
951 pp_cxx_whitespace (cxx_pp);
953 nreverse(orig_parms);
955 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
956 /* Say `template<arg> class TT' not just `template<arg> TT'. */
957 pp_cxx_identifier (cxx_pp, "class");
960 if (TREE_CODE (DECL_TEMPLATE_RESULT (t)) == TYPE_DECL)
961 dump_type (TREE_TYPE (t),
962 ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
963 | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
964 else if (TREE_CODE (DECL_TEMPLATE_RESULT (t)) == VAR_DECL)
965 dump_decl (DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
968 gcc_assert (TREE_TYPE (t));
969 switch (NEXT_CODE (t))
973 dump_function_decl (t, flags | TFF_TEMPLATE_NAME);
976 /* This case can occur with some invalid code. */
977 dump_type (TREE_TYPE (t),
978 (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
979 | (flags & TFF_DECL_SPECIFIERS
980 ? TFF_CLASS_KEY_OR_ENUM : 0));
985 /* Pretty print a function decl. There are several ways we want to print a
986 function declaration. The TFF_ bits in FLAGS tells us how to behave.
987 As error can only apply the '#' flag once to give 0 and 1 for V, there
988 is %D which doesn't print the throw specs, and %F which does. */
991 dump_function_decl (tree t, int flags)
995 tree cname = NULL_TREE;
996 tree template_args = NULL_TREE;
997 tree template_parms = NULL_TREE;
998 int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
1000 if (TREE_CODE (t) == TEMPLATE_DECL)
1001 t = DECL_TEMPLATE_RESULT (t);
1003 /* Pretty print template instantiations only. */
1004 if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t))
1008 template_args = DECL_TI_ARGS (t);
1009 tmpl = most_general_template (t);
1010 if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
1012 template_parms = DECL_TEMPLATE_PARMS (tmpl);
1017 fntype = TREE_TYPE (t);
1018 parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
1020 if (DECL_CLASS_SCOPE_P (t))
1021 cname = DECL_CONTEXT (t);
1022 /* This is for partially instantiated template methods. */
1023 else if (TREE_CODE (fntype) == METHOD_TYPE)
1024 cname = TREE_TYPE (TREE_VALUE (parmtypes));
1026 if (!(flags & TFF_DECL_SPECIFIERS))
1028 else if (DECL_STATIC_FUNCTION_P (t))
1029 pp_cxx_identifier (cxx_pp, "static");
1030 else if (DECL_VIRTUAL_P (t))
1031 pp_cxx_identifier (cxx_pp, "virtual");
1033 /* Print the return type? */
1035 show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
1036 && !DECL_DESTRUCTOR_P (t);
1038 dump_type_prefix (TREE_TYPE (fntype), flags);
1040 /* Print the function name. */
1043 dump_type (cname, flags);
1044 pp_cxx_colon_colon (cxx_pp);
1047 dump_scope (CP_DECL_CONTEXT (t), flags);
1049 dump_function_name (t, flags);
1051 if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
1053 dump_parameters (parmtypes, flags);
1055 if (TREE_CODE (fntype) == METHOD_TYPE)
1057 pp_base (cxx_pp)->padding = pp_before;
1058 pp_cxx_cv_qualifier_seq
1059 (cxx_pp, TREE_TYPE (TREE_VALUE (TYPE_ARG_TYPES (fntype))));
1062 if (flags & TFF_EXCEPTION_SPECIFICATION)
1064 pp_base (cxx_pp)->padding = pp_before;
1065 dump_exception_spec (TYPE_RAISES_EXCEPTIONS (fntype), flags);
1069 dump_type_suffix (TREE_TYPE (fntype), flags);
1072 /* If T is a template instantiation, dump the parameter binding. */
1073 if (template_parms != NULL_TREE && template_args != NULL_TREE)
1075 pp_cxx_whitespace (cxx_pp);
1076 pp_cxx_left_bracket (cxx_pp);
1077 pp_cxx_identifier (cxx_pp, "with");
1078 pp_cxx_whitespace (cxx_pp);
1079 dump_template_bindings (template_parms, template_args);
1080 pp_cxx_right_bracket (cxx_pp);
1084 /* Print a parameter list. If this is for a member function, the
1085 member object ptr (and any other hidden args) should have
1086 already been removed. */
1089 dump_parameters (tree parmtypes, int flags)
1093 pp_cxx_left_paren (cxx_pp);
1095 for (first = 1; parmtypes != void_list_node;
1096 parmtypes = TREE_CHAIN (parmtypes))
1099 pp_separate_with_comma (cxx_pp);
1103 pp_cxx_identifier (cxx_pp, "...");
1106 dump_type (TREE_VALUE (parmtypes), flags);
1108 if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
1110 pp_cxx_whitespace (cxx_pp);
1112 pp_cxx_whitespace (cxx_pp);
1113 dump_expr (TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
1117 pp_cxx_right_paren (cxx_pp);
1120 /* Print an exception specification. T is the exception specification. */
1123 dump_exception_spec (tree t, int flags)
1127 pp_cxx_identifier (cxx_pp, "throw");
1128 pp_cxx_whitespace (cxx_pp);
1129 pp_cxx_left_paren (cxx_pp);
1130 if (TREE_VALUE (t) != NULL_TREE)
1133 dump_type (TREE_VALUE (t), flags);
1137 pp_separate_with_comma (cxx_pp);
1139 pp_cxx_right_paren (cxx_pp);
1143 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1144 and destructors properly. */
1147 dump_function_name (tree t, int flags)
1149 tree name = DECL_NAME (t);
1151 /* We can get here with a decl that was synthesized by language-
1152 independent machinery (e.g. coverage.c) in which case it won't
1153 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1154 will crash. In this case it is safe just to print out the
1156 if (!DECL_LANG_SPECIFIC (t))
1158 pp_cxx_tree_identifier (cxx_pp, name);
1162 if (TREE_CODE (t) == TEMPLATE_DECL)
1163 t = DECL_TEMPLATE_RESULT (t);
1165 /* Don't let the user see __comp_ctor et al. */
1166 if (DECL_CONSTRUCTOR_P (t)
1167 || DECL_DESTRUCTOR_P (t))
1168 name = constructor_name (DECL_CONTEXT (t));
1170 if (DECL_DESTRUCTOR_P (t))
1172 pp_cxx_complement (cxx_pp);
1173 dump_decl (name, TFF_PLAIN_IDENTIFIER);
1175 else if (DECL_CONV_FN_P (t))
1177 /* This cannot use the hack that the operator's return
1178 type is stashed off of its name because it may be
1179 used for error reporting. In the case of conflicting
1180 declarations, both will have the same name, yet
1181 the types will be different, hence the TREE_TYPE field
1182 of the first name will be clobbered by the second. */
1183 pp_cxx_identifier (cxx_pp, "operator");
1184 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1186 else if (IDENTIFIER_OPNAME_P (name))
1187 pp_cxx_tree_identifier (cxx_pp, name);
1189 dump_decl (name, flags);
1191 if (DECL_TEMPLATE_INFO (t)
1192 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
1193 && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
1194 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
1195 dump_template_parms (DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t), flags);
1198 /* Dump the template parameters from the template info INFO under control of
1199 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1200 specialization (partial or complete). For partial specializations we show
1201 the specialized parameter values. For a primary template we show no
1205 dump_template_parms (tree info, int primary, int flags)
1207 tree args = info ? TI_ARGS (info) : NULL_TREE;
1209 if (primary && flags & TFF_TEMPLATE_NAME)
1211 flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
1212 pp_cxx_begin_template_argument_list (cxx_pp);
1214 /* Be careful only to print things when we have them, so as not
1215 to crash producing error messages. */
1216 if (args && !primary)
1220 if (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (args))
1221 args = TREE_VEC_ELT (args, TREE_VEC_LENGTH (args) - 1);
1223 len = TREE_VEC_LENGTH (args);
1225 for (ix = 0; ix != len; ix++)
1227 tree arg = TREE_VEC_ELT (args, ix);
1230 pp_separate_with_comma (cxx_pp);
1233 pp_identifier (cxx_pp, "<template parameter error>");
1235 dump_template_argument (arg, flags);
1240 tree tpl = TI_TEMPLATE (info);
1241 tree parms = DECL_TEMPLATE_PARMS (tpl);
1244 parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
1245 len = parms ? TREE_VEC_LENGTH (parms) : 0;
1247 for (ix = 0; ix != len; ix++)
1251 if (TREE_VEC_ELT (parms, ix) == error_mark_node)
1253 pp_identifier (cxx_pp, "<template parameter error>");
1257 parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
1260 pp_separate_with_comma (cxx_pp);
1262 dump_decl (parm, flags & ~TFF_DECL_SPECIFIERS);
1265 pp_cxx_end_template_argument_list (cxx_pp);
1268 /* Print out a list of initializers (subr of dump_expr). */
1271 dump_expr_list (tree l, int flags)
1275 dump_expr (TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
1278 pp_separate_with_comma (cxx_pp);
1282 /* Print out a vector of initializers (subr of dump_expr). */
1285 dump_expr_init_vec (VEC(constructor_elt,gc) *v, int flags)
1287 unsigned HOST_WIDE_INT idx;
1290 FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
1292 dump_expr (value, flags | TFF_EXPR_IN_PARENS);
1293 if (idx != VEC_length (constructor_elt, v) - 1)
1294 pp_separate_with_comma (cxx_pp);
1299 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1300 function. Resolve it to a close relative -- in the sense of static
1301 type -- variant being overridden. That is close to what was written in
1302 the source code. Subroutine of dump_expr. */
1305 resolve_virtual_fun_from_obj_type_ref (tree ref)
1307 tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
1308 HOST_WIDE_INT index = tree_low_cst (OBJ_TYPE_REF_TOKEN (ref), 1);
1309 tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
1312 fun = TREE_CHAIN (fun);
1313 index -= (TARGET_VTABLE_USES_DESCRIPTORS
1314 ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
1320 /* Print out an expression E under control of FLAGS. */
1323 dump_expr (tree t, int flags)
1328 switch (TREE_CODE (t))
1336 case NAMESPACE_DECL:
1339 case IDENTIFIER_NODE:
1340 dump_decl (t, (flags & ~TFF_DECL_SPECIFIERS) | TFF_NO_FUNCTION_ARGUMENTS);
1346 pp_constant (cxx_pp, t);
1350 pp_cxx_identifier (cxx_pp, "throw");
1351 dump_expr (TREE_OPERAND (t, 0), flags);
1355 pp_ampersand (cxx_pp);
1356 dump_type (PTRMEM_CST_CLASS (t), flags);
1357 pp_cxx_colon_colon (cxx_pp);
1358 pp_cxx_tree_identifier (cxx_pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
1362 pp_cxx_left_paren (cxx_pp);
1363 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1364 pp_separate_with_comma (cxx_pp);
1365 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1366 pp_cxx_right_paren (cxx_pp);
1370 pp_cxx_left_paren (cxx_pp);
1371 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1372 pp_string (cxx_pp, " ? ");
1373 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1374 pp_string (cxx_pp, " : ");
1375 dump_expr (TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
1376 pp_cxx_right_paren (cxx_pp);
1380 if (TREE_HAS_CONSTRUCTOR (t))
1382 pp_cxx_identifier (cxx_pp, "new");
1383 pp_cxx_whitespace (cxx_pp);
1384 dump_type (TREE_TYPE (TREE_TYPE (t)), flags);
1387 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1390 case AGGR_INIT_EXPR:
1392 tree fn = NULL_TREE;
1394 if (TREE_CODE (TREE_OPERAND (t, 0)) == ADDR_EXPR)
1395 fn = TREE_OPERAND (TREE_OPERAND (t, 0), 0);
1397 if (fn && TREE_CODE (fn) == FUNCTION_DECL)
1399 if (DECL_CONSTRUCTOR_P (fn))
1400 dump_type (DECL_CONTEXT (fn), flags);
1405 dump_expr (TREE_OPERAND (t, 0), 0);
1407 pp_cxx_left_paren (cxx_pp);
1408 if (TREE_OPERAND (t, 1))
1409 dump_expr_list (TREE_CHAIN (TREE_OPERAND (t, 1)), flags);
1410 pp_cxx_right_paren (cxx_pp);
1415 tree fn = TREE_OPERAND (t, 0);
1416 tree args = TREE_OPERAND (t, 1);
1418 if (TREE_CODE (fn) == ADDR_EXPR)
1419 fn = TREE_OPERAND (fn, 0);
1421 /* Nobody is interested in seeing the guts of vcalls. */
1422 if (TREE_CODE (fn) == OBJ_TYPE_REF)
1423 fn = resolve_virtual_fun_from_obj_type_ref (fn);
1425 if (TREE_TYPE (fn) != NULL_TREE && NEXT_CODE (fn) == METHOD_TYPE)
1427 tree ob = TREE_VALUE (args);
1428 if (TREE_CODE (ob) == ADDR_EXPR)
1430 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1431 pp_cxx_dot (cxx_pp);
1433 else if (TREE_CODE (ob) != PARM_DECL
1434 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
1436 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1437 pp_cxx_arrow (cxx_pp);
1439 args = TREE_CHAIN (args);
1441 dump_expr (fn, flags | TFF_EXPR_IN_PARENS);
1442 pp_cxx_left_paren (cxx_pp);
1443 dump_expr_list (args, flags);
1444 pp_cxx_right_paren (cxx_pp);
1450 tree type = TREE_OPERAND (t, 1);
1451 tree init = TREE_OPERAND (t, 2);
1452 if (NEW_EXPR_USE_GLOBAL (t))
1453 pp_cxx_colon_colon (cxx_pp);
1454 pp_cxx_identifier (cxx_pp, "new");
1455 if (TREE_OPERAND (t, 0))
1457 pp_cxx_left_paren (cxx_pp);
1458 dump_expr_list (TREE_OPERAND (t, 0), flags);
1459 pp_cxx_right_paren (cxx_pp);
1460 pp_cxx_whitespace (cxx_pp);
1462 if (TREE_CODE (type) == ARRAY_REF)
1463 type = build_cplus_array_type
1464 (TREE_OPERAND (type, 0),
1465 build_index_type (fold_build2 (MINUS_EXPR, integer_type_node,
1466 TREE_OPERAND (type, 1),
1467 integer_one_node)));
1468 dump_type (type, flags);
1471 pp_cxx_left_paren (cxx_pp);
1472 if (TREE_CODE (init) == TREE_LIST)
1473 dump_expr_list (init, flags);
1474 else if (init == void_zero_node)
1475 /* This representation indicates an empty initializer,
1476 e.g.: "new int()". */
1479 dump_expr (init, flags);
1480 pp_cxx_right_paren (cxx_pp);
1486 /* Note that this only works for G++ target exprs. If somebody
1487 builds a general TARGET_EXPR, there's no way to represent that
1488 it initializes anything other that the parameter slot for the
1489 default argument. Note we may have cleared out the first
1490 operand in expand_expr, so don't go killing ourselves. */
1491 if (TREE_OPERAND (t, 1))
1492 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1500 case TRUNC_DIV_EXPR:
1501 case TRUNC_MOD_EXPR:
1509 case TRUTH_ANDIF_EXPR:
1510 case TRUTH_ORIF_EXPR:
1517 case EXACT_DIV_EXPR:
1518 dump_binary_op (operator_name_info[(int) TREE_CODE (t)].name, t, flags);
1522 case FLOOR_DIV_EXPR:
1523 case ROUND_DIV_EXPR:
1525 dump_binary_op ("/", t, flags);
1529 case FLOOR_MOD_EXPR:
1530 case ROUND_MOD_EXPR:
1531 dump_binary_op ("%", t, flags);
1536 tree ob = TREE_OPERAND (t, 0);
1537 if (TREE_CODE (ob) == INDIRECT_REF)
1539 ob = TREE_OPERAND (ob, 0);
1540 if (TREE_CODE (ob) != PARM_DECL
1542 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
1544 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1545 pp_cxx_arrow (cxx_pp);
1550 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1551 pp_cxx_dot (cxx_pp);
1553 dump_expr (TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
1558 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1559 pp_cxx_left_bracket (cxx_pp);
1560 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1561 pp_cxx_right_bracket (cxx_pp);
1564 case UNARY_PLUS_EXPR:
1565 dump_unary_op ("+", t, flags);
1569 if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
1570 || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
1571 /* An ADDR_EXPR can have reference type. In that case, we
1572 shouldn't print the `&' doing so indicates to the user
1573 that the expression has pointer type. */
1575 && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
1576 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1577 else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
1578 dump_unary_op ("&&", t, flags);
1580 dump_unary_op ("&", t, flags);
1584 if (TREE_HAS_CONSTRUCTOR (t))
1586 t = TREE_OPERAND (t, 0);
1587 gcc_assert (TREE_CODE (t) == CALL_EXPR);
1588 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1589 pp_cxx_left_paren (cxx_pp);
1590 dump_expr_list (TREE_CHAIN (TREE_OPERAND (t, 1)), flags);
1591 pp_cxx_right_paren (cxx_pp);
1595 if (TREE_OPERAND (t,0) != NULL_TREE
1596 && TREE_TYPE (TREE_OPERAND (t, 0))
1597 && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
1598 dump_expr (TREE_OPERAND (t, 0), flags);
1600 dump_unary_op ("*", t, flags);
1606 case TRUTH_NOT_EXPR:
1607 case PREDECREMENT_EXPR:
1608 case PREINCREMENT_EXPR:
1609 dump_unary_op (operator_name_info [(int)TREE_CODE (t)].name, t, flags);
1612 case POSTDECREMENT_EXPR:
1613 case POSTINCREMENT_EXPR:
1614 pp_cxx_left_paren (cxx_pp);
1615 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1616 pp_cxx_identifier (cxx_pp, operator_name_info[(int)TREE_CODE (t)].name);
1617 pp_cxx_right_paren (cxx_pp);
1620 case NON_LVALUE_EXPR:
1621 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
1622 should be another level of INDIRECT_REF so that I don't have to do
1624 if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
1626 tree next = TREE_TYPE (TREE_TYPE (t));
1628 while (TREE_CODE (next) == POINTER_TYPE)
1629 next = TREE_TYPE (next);
1631 if (TREE_CODE (next) == FUNCTION_TYPE)
1633 if (flags & TFF_EXPR_IN_PARENS)
1634 pp_cxx_left_paren (cxx_pp);
1635 pp_cxx_star (cxx_pp);
1636 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1637 if (flags & TFF_EXPR_IN_PARENS)
1638 pp_cxx_right_paren (cxx_pp);
1641 /* Else fall through. */
1643 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1649 tree op = TREE_OPERAND (t, 0);
1651 if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
1653 /* It is a cast, but we cannot tell whether it is a
1654 reinterpret or static cast. Use the C style notation. */
1655 if (flags & TFF_EXPR_IN_PARENS)
1656 pp_cxx_left_paren (cxx_pp);
1657 pp_cxx_left_paren (cxx_pp);
1658 dump_type (TREE_TYPE (t), flags);
1659 pp_cxx_right_paren (cxx_pp);
1660 dump_expr (op, flags | TFF_EXPR_IN_PARENS);
1661 if (flags & TFF_EXPR_IN_PARENS)
1662 pp_cxx_right_paren (cxx_pp);
1665 dump_expr (op, flags);
1670 if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
1672 tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
1674 if (integer_zerop (idx))
1676 /* A NULL pointer-to-member constant. */
1677 pp_cxx_left_paren (cxx_pp);
1678 pp_cxx_left_paren (cxx_pp);
1679 dump_type (TREE_TYPE (t), flags);
1680 pp_cxx_right_paren (cxx_pp);
1681 pp_character (cxx_pp, '0');
1682 pp_cxx_right_paren (cxx_pp);
1685 else if (host_integerp (idx, 0))
1688 unsigned HOST_WIDE_INT n;
1690 t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
1691 t = TYPE_METHOD_BASETYPE (t);
1692 virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
1694 n = tree_low_cst (idx, 0);
1696 /* Map vtable index back one, to allow for the null pointer to
1700 while (n > 0 && virtuals)
1703 virtuals = TREE_CHAIN (virtuals);
1707 dump_expr (BV_FN (virtuals),
1708 flags | TFF_EXPR_IN_PARENS);
1713 if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
1715 dump_type (TREE_TYPE (t), 0);
1716 pp_cxx_left_paren (cxx_pp);
1717 pp_cxx_right_paren (cxx_pp);
1721 pp_cxx_left_brace (cxx_pp);
1722 dump_expr_init_vec (CONSTRUCTOR_ELTS (t), flags);
1723 pp_cxx_right_brace (cxx_pp);
1730 tree ob = TREE_OPERAND (t, 0);
1731 if (is_dummy_object (ob))
1733 t = TREE_OPERAND (t, 1);
1734 if (TREE_CODE (t) == FUNCTION_DECL)
1736 dump_expr (t, flags | TFF_EXPR_IN_PARENS);
1737 else if (BASELINK_P (t))
1738 dump_expr (OVL_CURRENT (BASELINK_FUNCTIONS (t)),
1739 flags | TFF_EXPR_IN_PARENS);
1741 dump_decl (t, flags);
1745 if (TREE_CODE (ob) == INDIRECT_REF)
1747 dump_expr (TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
1748 pp_cxx_arrow (cxx_pp);
1749 pp_cxx_star (cxx_pp);
1753 dump_expr (ob, flags | TFF_EXPR_IN_PARENS);
1754 pp_cxx_dot (cxx_pp);
1755 pp_cxx_star (cxx_pp);
1757 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1762 case TEMPLATE_PARM_INDEX:
1763 dump_decl (TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
1767 pp_expression (cxx_pp, t);
1771 if (TREE_OPERAND (t, 0) == NULL_TREE
1772 || TREE_CHAIN (TREE_OPERAND (t, 0)))
1774 dump_type (TREE_TYPE (t), flags);
1775 pp_cxx_left_paren (cxx_pp);
1776 dump_expr_list (TREE_OPERAND (t, 0), flags);
1777 pp_cxx_right_paren (cxx_pp);
1781 pp_cxx_left_paren (cxx_pp);
1782 dump_type (TREE_TYPE (t), flags);
1783 pp_cxx_right_paren (cxx_pp);
1784 pp_cxx_left_paren (cxx_pp);
1785 dump_expr_list (TREE_OPERAND (t, 0), flags);
1786 pp_cxx_right_paren (cxx_pp);
1790 case STATIC_CAST_EXPR:
1791 pp_cxx_identifier (cxx_pp, "static_cast");
1793 case REINTERPRET_CAST_EXPR:
1794 pp_cxx_identifier (cxx_pp, "reinterpret_cast");
1796 case CONST_CAST_EXPR:
1797 pp_cxx_identifier (cxx_pp, "const_cast");
1799 case DYNAMIC_CAST_EXPR:
1800 pp_cxx_identifier (cxx_pp, "dynamic_cast");
1802 pp_cxx_begin_template_argument_list (cxx_pp);
1803 dump_type (TREE_TYPE (t), flags);
1804 pp_cxx_end_template_argument_list (cxx_pp);
1805 pp_cxx_left_paren (cxx_pp);
1806 dump_expr (TREE_OPERAND (t, 0), flags);
1807 pp_cxx_right_paren (cxx_pp);
1811 dump_expr (TREE_OPERAND (t, 0), flags);
1812 pp_cxx_arrow (cxx_pp);
1817 if (TREE_CODE (t) == SIZEOF_EXPR)
1818 pp_cxx_identifier (cxx_pp, "sizeof");
1821 gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
1822 pp_cxx_identifier (cxx_pp, "__alignof__");
1824 pp_cxx_whitespace (cxx_pp);
1825 pp_cxx_left_paren (cxx_pp);
1826 if (TYPE_P (TREE_OPERAND (t, 0)))
1827 dump_type (TREE_OPERAND (t, 0), flags);
1829 dump_expr (TREE_OPERAND (t, 0), flags);
1830 pp_cxx_right_paren (cxx_pp);
1835 pp_cxx_identifier (cxx_pp, operator_name_info[TREE_CODE (t)].name);
1836 pp_cxx_whitespace (cxx_pp);
1837 dump_expr (TREE_OPERAND (t, 0), flags);
1841 pp_identifier (cxx_pp, "<unparsed>");
1844 case TRY_CATCH_EXPR:
1845 case WITH_CLEANUP_EXPR:
1846 case CLEANUP_POINT_EXPR:
1847 dump_expr (TREE_OPERAND (t, 0), flags);
1850 case PSEUDO_DTOR_EXPR:
1851 dump_expr (TREE_OPERAND (t, 2), flags);
1852 pp_cxx_dot (cxx_pp);
1853 dump_type (TREE_OPERAND (t, 0), flags);
1854 pp_cxx_colon_colon (cxx_pp);
1855 pp_cxx_complement (cxx_pp);
1856 dump_type (TREE_OPERAND (t, 1), flags);
1859 case TEMPLATE_ID_EXPR:
1860 dump_decl (t, flags);
1865 case STATEMENT_LIST:
1866 /* We don't yet have a way of dumping statements in a
1867 human-readable format. */
1868 pp_string (cxx_pp, "({...})");
1872 pp_string (cxx_pp, "while (1) { ");
1873 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1874 pp_cxx_right_brace (cxx_pp);
1878 pp_string (cxx_pp, "if (");
1879 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1880 pp_string (cxx_pp, ") break; ");
1884 dump_expr (get_first_fn (t), flags & ~TFF_EXPR_IN_PARENS);
1887 case EMPTY_CLASS_EXPR:
1888 dump_type (TREE_TYPE (t), flags);
1889 pp_cxx_left_paren (cxx_pp);
1890 pp_cxx_right_paren (cxx_pp);
1893 case NON_DEPENDENT_EXPR:
1894 dump_expr (TREE_OPERAND (t, 0), flags);
1897 /* This list is incomplete, but should suffice for now.
1898 It is very important that `sorry' does not call
1899 `report_error_function'. That could cause an infinite loop. */
1901 pp_unsupported_tree (cxx_pp, t);
1902 /* fall through to ERROR_MARK... */
1904 pp_identifier (cxx_pp, "<expression error>");
1910 dump_binary_op (const char *opstring, tree t, int flags)
1912 pp_cxx_left_paren (cxx_pp);
1913 dump_expr (TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
1914 pp_cxx_whitespace (cxx_pp);
1916 pp_cxx_identifier (cxx_pp, opstring);
1918 pp_identifier (cxx_pp, "<unknown operator>");
1919 pp_cxx_whitespace (cxx_pp);
1920 dump_expr (TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
1921 pp_cxx_right_paren (cxx_pp);
1925 dump_unary_op (const char *opstring, tree t, int flags)
1927 if (flags & TFF_EXPR_IN_PARENS)
1928 pp_cxx_left_paren (cxx_pp);
1929 pp_cxx_identifier (cxx_pp, opstring);
1930 dump_expr (TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
1931 if (flags & TFF_EXPR_IN_PARENS)
1932 pp_cxx_right_paren (cxx_pp);
1936 reinit_cxx_pp (void)
1938 pp_clear_output_area (cxx_pp);
1939 pp_base (cxx_pp)->padding = pp_none;
1940 pp_indentation (cxx_pp) = 0;
1941 pp_needs_newline (cxx_pp) = false;
1942 cxx_pp->enclosing_scope = 0;
1946 /* Exported interface to stringifying types, exprs and decls under TFF_*
1950 type_as_string (tree typ, int flags)
1953 dump_type (typ, flags);
1954 return pp_formatted_text (cxx_pp);
1958 expr_as_string (tree decl, int flags)
1961 dump_expr (decl, flags);
1962 return pp_formatted_text (cxx_pp);
1966 decl_as_string (tree decl, int flags)
1969 dump_decl (decl, flags);
1970 return pp_formatted_text (cxx_pp);
1973 /* Generate the three forms of printable names for cxx_printable_name. */
1976 lang_decl_name (tree decl, int v)
1979 return decl_as_string (decl, TFF_DECL_SPECIFIERS);
1982 if (v == 1 && DECL_CLASS_SCOPE_P (decl))
1984 dump_type (CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
1985 pp_cxx_colon_colon (cxx_pp);
1988 if (TREE_CODE (decl) == FUNCTION_DECL)
1989 dump_function_name (decl, TFF_PLAIN_IDENTIFIER);
1991 dump_decl (DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
1993 return pp_formatted_text (cxx_pp);
1996 /* Return the location of a tree passed to %+ formats. */
1999 location_of (tree t)
2001 if (TREE_CODE (t) == PARM_DECL && DECL_CONTEXT (t))
2002 t = DECL_CONTEXT (t);
2003 else if (TYPE_P (t))
2004 t = TYPE_MAIN_DECL (t);
2005 else if (TREE_CODE (t) == OVERLOAD)
2006 t = OVL_FUNCTION (t);
2008 return DECL_SOURCE_LOCATION (t);
2011 /* Now the interfaces from error et al to dump_type et al. Each takes an
2012 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2016 decl_to_string (tree decl, int verbose)
2020 if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
2021 || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
2022 flags = TFF_CLASS_KEY_OR_ENUM;
2024 flags |= TFF_DECL_SPECIFIERS;
2025 else if (TREE_CODE (decl) == FUNCTION_DECL)
2026 flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
2027 flags |= TFF_TEMPLATE_HEADER;
2030 dump_decl (decl, flags);
2031 return pp_formatted_text (cxx_pp);
2035 expr_to_string (tree decl)
2038 dump_expr (decl, 0);
2039 return pp_formatted_text (cxx_pp);
2043 fndecl_to_string (tree fndecl, int verbose)
2047 flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
2048 | TFF_TEMPLATE_HEADER;
2050 flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
2052 dump_decl (fndecl, flags);
2053 return pp_formatted_text (cxx_pp);
2058 code_to_string (enum tree_code c)
2060 return tree_code_name [c];
2064 language_to_string (enum languages c)
2071 case lang_cplusplus:
2083 /* Return the proper printed version of a parameter to a C++ function. */
2086 parm_to_string (int p)
2090 pp_string (cxx_pp, "'this'");
2092 pp_decimal_int (cxx_pp, p + 1);
2093 return pp_formatted_text (cxx_pp);
2097 op_to_string (enum tree_code p)
2099 tree id = operator_name_info[(int) p].identifier;
2100 return id ? IDENTIFIER_POINTER (id) : "<unknown>";
2104 type_to_string (tree typ, int verbose)
2108 flags |= TFF_CLASS_KEY_OR_ENUM;
2109 flags |= TFF_TEMPLATE_HEADER;
2112 dump_type (typ, flags);
2113 return pp_formatted_text (cxx_pp);
2117 assop_to_string (enum tree_code p)
2119 tree id = assignment_operator_name_info[(int) p].identifier;
2120 return id ? IDENTIFIER_POINTER (id) : "{unknown}";
2124 args_to_string (tree p, int verbose)
2128 flags |= TFF_CLASS_KEY_OR_ENUM;
2133 if (TYPE_P (TREE_VALUE (p)))
2134 return type_as_string (p, flags);
2137 for (; p; p = TREE_CHAIN (p))
2139 if (TREE_VALUE (p) == null_node)
2140 pp_cxx_identifier (cxx_pp, "NULL");
2142 dump_type (error_type (TREE_VALUE (p)), flags);
2144 pp_separate_with_comma (cxx_pp);
2146 return pp_formatted_text (cxx_pp);
2150 cv_to_string (tree p, int v)
2153 pp_base (cxx_pp)->padding = v ? pp_before : pp_none;
2154 pp_cxx_cv_qualifier_seq (cxx_pp, p);
2155 return pp_formatted_text (cxx_pp);
2158 /* Langhook for print_error_function. */
2160 cxx_print_error_function (diagnostic_context *context, const char *file)
2162 lhd_print_error_function (context, file);
2163 pp_base_set_prefix (context->printer, file);
2164 maybe_print_instantiation_context (context);
2168 cp_diagnostic_starter (diagnostic_context *context,
2169 diagnostic_info *diagnostic)
2171 diagnostic_report_current_module (context);
2172 cp_print_error_function (context, diagnostic);
2173 maybe_print_instantiation_context (context);
2174 pp_base_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
2178 cp_diagnostic_finalizer (diagnostic_context *context,
2179 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
2181 pp_base_destroy_prefix (context->printer);
2184 /* Print current function onto BUFFER, in the process of reporting
2185 a diagnostic message. Called from cp_diagnostic_starter. */
2187 cp_print_error_function (diagnostic_context *context,
2188 diagnostic_info *diagnostic)
2190 if (diagnostic_last_function_changed (context))
2192 const char *old_prefix = context->printer->prefix;
2193 const char *file = LOCATION_FILE (diagnostic->location);
2194 char *new_prefix = file ? file_name_as_prefix (file) : NULL;
2196 pp_base_set_prefix (context->printer, new_prefix);
2198 if (current_function_decl == NULL)
2199 pp_base_string (context->printer, "At global scope:");
2201 pp_printf (context->printer, "In %s %qs:",
2202 function_category (current_function_decl),
2203 cxx_printable_name (current_function_decl, 2));
2204 pp_base_newline (context->printer);
2206 diagnostic_set_last_function (context);
2207 pp_base_destroy_prefix (context->printer);
2208 context->printer->prefix = old_prefix;
2212 /* Returns a description of FUNCTION using standard terminology. */
2214 function_category (tree fn)
2216 if (DECL_FUNCTION_MEMBER_P (fn))
2218 if (DECL_STATIC_FUNCTION_P (fn))
2219 return "static member function";
2220 else if (DECL_COPY_CONSTRUCTOR_P (fn))
2221 return "copy constructor";
2222 else if (DECL_CONSTRUCTOR_P (fn))
2223 return "constructor";
2224 else if (DECL_DESTRUCTOR_P (fn))
2225 return "destructor";
2227 return "member function";
2233 /* Report the full context of a current template instantiation,
2236 print_instantiation_full_context (diagnostic_context *context)
2238 tree p = current_instantiation ();
2239 location_t location = input_location;
2243 if (current_function_decl != TINST_DECL (p)
2244 && current_function_decl != NULL_TREE)
2245 /* We can get here during the processing of some synthesized
2246 method. Then, TINST_DECL (p) will be the function that's causing
2251 if (current_function_decl == TINST_DECL (p))
2252 /* Avoid redundancy with the "In function" line. */;
2254 pp_verbatim (context->printer,
2255 "%s: In instantiation of %qs:\n",
2256 LOCATION_FILE (location),
2257 decl_as_string (TINST_DECL (p),
2258 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2260 location = TINST_LOCATION (p);
2265 print_instantiation_partial_context (context, p, location);
2268 /* Same as above but less verbose. */
2270 print_instantiation_partial_context (diagnostic_context *context,
2271 tree t, location_t loc)
2273 expanded_location xloc;
2274 for (; ; t = TREE_CHAIN (t))
2276 xloc = expand_location (loc);
2279 pp_verbatim (context->printer, "%s:%d: instantiated from %qs\n",
2280 xloc.file, xloc.line,
2281 decl_as_string (TINST_DECL (t),
2282 TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
2283 loc = TINST_LOCATION (t);
2285 pp_verbatim (context->printer, "%s:%d: instantiated from here",
2286 xloc.file, xloc.line);
2287 pp_base_newline (context->printer);
2290 /* Called from cp_thing to print the template context for an error. */
2292 maybe_print_instantiation_context (diagnostic_context *context)
2294 if (!problematic_instantiation_changed () || current_instantiation () == 0)
2297 record_last_problematic_instantiation ();
2298 print_instantiation_full_context (context);
2301 /* Report the bare minimum context of a template instantiation. */
2303 print_instantiation_context (void)
2305 print_instantiation_partial_context
2306 (global_dc, current_instantiation (), input_location);
2307 diagnostic_flush_buffer (global_dc);
2310 /* Called from output_format -- during diagnostic message processing --
2311 to handle C++ specific format specifier with the following meanings:
2312 %A function argument-list.
2316 %F function declaration.
2317 %L language as used in extern "lang".
2319 %P function parameter whose position is indicated by an integer.
2320 %Q assignment operator.
2324 cp_printer (pretty_printer *pp, text_info *text, const char *spec,
2325 int precision, bool wide, bool set_locus, bool verbose)
2329 #define next_tree (t = va_arg (*text->args_ptr, tree))
2330 #define next_tcode va_arg (*text->args_ptr, enum tree_code)
2331 #define next_lang va_arg (*text->args_ptr, enum languages)
2332 #define next_int va_arg (*text->args_ptr, int)
2334 if (precision != 0 || wide)
2337 if (text->locus == NULL)
2342 case 'A': result = args_to_string (next_tree, verbose); break;
2343 case 'C': result = code_to_string (next_tcode); break;
2346 tree temp = next_tree;
2348 && DECL_DEBUG_EXPR_IS_FROM (temp) && DECL_DEBUG_EXPR (temp))
2350 temp = DECL_DEBUG_EXPR (temp);
2353 result = expr_to_string (temp);
2357 result = decl_to_string (temp, verbose);
2360 case 'E': result = expr_to_string (next_tree); break;
2361 case 'F': result = fndecl_to_string (next_tree, verbose); break;
2362 case 'L': result = language_to_string (next_lang); break;
2363 case 'O': result = op_to_string (next_tcode); break;
2364 case 'P': result = parm_to_string (next_int); break;
2365 case 'Q': result = assop_to_string (next_tcode); break;
2366 case 'T': result = type_to_string (next_tree, verbose); break;
2367 case 'V': result = cv_to_string (next_tree, verbose); break;
2373 pp_base_string (pp, result);
2374 if (set_locus && t != NULL)
2375 *text->locus = location_of (t);
2383 /* Callback from cpp_error for PFILE to print diagnostics arising from
2384 interpreting strings. The diagnostic is of type LEVEL; MSG is the
2385 translated message and AP the arguments. */
2388 cp_cpp_error (cpp_reader *pfile ATTRIBUTE_UNUSED, int level,
2389 const char *msg, va_list *ap)
2391 diagnostic_info diagnostic;
2392 diagnostic_t dlevel;
2395 case CPP_DL_WARNING:
2396 case CPP_DL_WARNING_SYSHDR:
2397 dlevel = DK_WARNING;
2399 case CPP_DL_PEDWARN:
2400 dlevel = pedantic_error_kind ();
2411 diagnostic_set_info_translated (&diagnostic, msg, ap,
2412 input_location, dlevel);
2413 report_diagnostic (&diagnostic);