1 /* Call-backs for C++ error reporting.
2 This code is non-reentrant.
3 Copyright (C) 1993-2014 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
22 #include "coretypes.h"
25 #include "stringpool.h"
28 #include "diagnostic.h"
29 #include "tree-diagnostic.h"
30 #include "langhooks-def.h"
32 #include "cxx-pretty-print.h"
33 #include "tree-pretty-print.h"
34 #include "pointer-set.h"
35 #include "c-family/c-objc.h"
38 #include <new> // For placement-new.
40 #define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
41 #define pp_separate_with_semicolon(PP) pp_cxx_separate_with (PP, ';')
43 /* The global buffer where we dump everything. It is there only for
44 transitional purpose. It is expected, in the near future, to be
45 completely removed. */
46 static cxx_pretty_printer scratch_pretty_printer
;
47 #define cxx_pp (&scratch_pretty_printer)
49 /* Translate if being used for diagnostics, but not for dump files or
51 #define M_(msgid) (pp_translate_identifiers (cxx_pp) ? _(msgid) : (msgid))
53 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
55 static const char *args_to_string (tree
, int);
56 static const char *assop_to_string (enum tree_code
);
57 static const char *code_to_string (enum tree_code
);
58 static const char *cv_to_string (tree
, int);
59 static const char *decl_to_string (tree
, int);
60 static const char *expr_to_string (tree
);
61 static const char *fndecl_to_string (tree
, int);
62 static const char *op_to_string (enum tree_code
);
63 static const char *parm_to_string (int);
64 static const char *type_to_string (tree
, int);
66 static void dump_alias_template_specialization (cxx_pretty_printer
*, tree
, int);
67 static void dump_type (cxx_pretty_printer
*, tree
, int);
68 static void dump_typename (cxx_pretty_printer
*, tree
, int);
69 static void dump_simple_decl (cxx_pretty_printer
*, tree
, tree
, int);
70 static void dump_decl (cxx_pretty_printer
*, tree
, int);
71 static void dump_template_decl (cxx_pretty_printer
*, tree
, int);
72 static void dump_function_decl (cxx_pretty_printer
*, tree
, int);
73 static void dump_expr (cxx_pretty_printer
*, tree
, int);
74 static void dump_unary_op (cxx_pretty_printer
*, const char *, tree
, int);
75 static void dump_binary_op (cxx_pretty_printer
*, const char *, tree
, int);
76 static void dump_aggr_type (cxx_pretty_printer
*, tree
, int);
77 static void dump_type_prefix (cxx_pretty_printer
*, tree
, int);
78 static void dump_type_suffix (cxx_pretty_printer
*, tree
, int);
79 static void dump_function_name (cxx_pretty_printer
*, tree
, int);
80 static void dump_call_expr_args (cxx_pretty_printer
*, tree
, int, bool);
81 static void dump_aggr_init_expr_args (cxx_pretty_printer
*, tree
, int, bool);
82 static void dump_expr_list (cxx_pretty_printer
*, tree
, int);
83 static void dump_global_iord (cxx_pretty_printer
*, tree
);
84 static void dump_parameters (cxx_pretty_printer
*, tree
, int);
85 static void dump_ref_qualifier (cxx_pretty_printer
*, tree
, int);
86 static void dump_exception_spec (cxx_pretty_printer
*, tree
, int);
87 static void dump_template_argument (cxx_pretty_printer
*, tree
, int);
88 static void dump_template_argument_list (cxx_pretty_printer
*, tree
, int);
89 static void dump_template_parameter (cxx_pretty_printer
*, tree
, int);
90 static void dump_template_bindings (cxx_pretty_printer
*, tree
, tree
,
92 static void dump_scope (cxx_pretty_printer
*, tree
, int);
93 static void dump_template_parms (cxx_pretty_printer
*, tree
, int, int);
94 static int get_non_default_template_args_count (tree
, int);
95 static const char *function_category (tree
);
96 static void maybe_print_constexpr_context (diagnostic_context
*);
97 static void maybe_print_instantiation_context (diagnostic_context
*);
98 static void print_instantiation_full_context (diagnostic_context
*);
99 static void print_instantiation_partial_context (diagnostic_context
*,
100 struct tinst_level
*,
102 static void cp_diagnostic_starter (diagnostic_context
*, diagnostic_info
*);
103 static void cp_diagnostic_finalizer (diagnostic_context
*, diagnostic_info
*);
104 static void cp_print_error_function (diagnostic_context
*, diagnostic_info
*);
106 static bool cp_printer (pretty_printer
*, text_info
*, const char *,
107 int, bool, bool, bool);
112 diagnostic_starter (global_dc
) = cp_diagnostic_starter
;
113 diagnostic_finalizer (global_dc
) = cp_diagnostic_finalizer
;
114 diagnostic_format_decoder (global_dc
) = cp_printer
;
116 new (cxx_pp
) cxx_pretty_printer ();
119 /* Dump a scope, if deemed necessary. */
122 dump_scope (cxx_pretty_printer
*pp
, tree scope
, int flags
)
124 int f
= flags
& (TFF_SCOPE
| TFF_CHASE_TYPEDEF
);
126 if (scope
== NULL_TREE
)
129 if (TREE_CODE (scope
) == NAMESPACE_DECL
)
131 if (scope
!= global_namespace
)
133 dump_decl (pp
, scope
, f
);
134 pp_cxx_colon_colon (pp
);
137 else if (AGGREGATE_TYPE_P (scope
))
139 dump_type (pp
, scope
, f
);
140 pp_cxx_colon_colon (pp
);
142 else if ((flags
& TFF_SCOPE
) && TREE_CODE (scope
) == FUNCTION_DECL
)
144 dump_function_decl (pp
, scope
, f
);
145 pp_cxx_colon_colon (pp
);
149 /* Dump the template ARGument under control of FLAGS. */
152 dump_template_argument (cxx_pretty_printer
*pp
, tree arg
, int flags
)
154 if (ARGUMENT_PACK_P (arg
))
155 dump_template_argument_list (pp
, ARGUMENT_PACK_ARGS (arg
),
156 /* No default args in argument packs. */
157 flags
|TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS
);
158 else if (TYPE_P (arg
) || TREE_CODE (arg
) == TEMPLATE_DECL
)
159 dump_type (pp
, arg
, flags
& ~TFF_CLASS_KEY_OR_ENUM
);
162 if (TREE_CODE (arg
) == TREE_LIST
)
163 arg
= TREE_VALUE (arg
);
165 dump_expr (pp
, arg
, (flags
| TFF_EXPR_IN_PARENS
) & ~TFF_CLASS_KEY_OR_ENUM
);
169 /* Count the number of template arguments ARGS whose value does not
170 match the (optional) default template parameter in PARAMS */
173 get_non_default_template_args_count (tree args
, int flags
)
175 int n
= TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (args
));
177 if (/* We use this flag when generating debug information. We don't
178 want to expand templates at this point, for this may generate
179 new decls, which gets decl counts out of sync, which may in
180 turn cause codegen differences between compilations with and
182 (flags
& TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS
) != 0
183 || !flag_pretty_templates
)
186 return GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT (INNERMOST_TEMPLATE_ARGS (args
));
189 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
193 dump_template_argument_list (cxx_pretty_printer
*pp
, tree args
, int flags
)
195 int n
= get_non_default_template_args_count (args
, flags
);
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 (pp
);
211 dump_template_argument (pp
, arg
, flags
);
216 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
219 dump_template_parameter (cxx_pretty_printer
*pp
, 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_ws_string (pp
, "class");
235 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p
)))
236 pp_cxx_ws_string (pp
, "...");
238 pp_cxx_tree_identifier (pp
, DECL_NAME (p
));
240 else if (DECL_NAME (p
))
241 pp_cxx_tree_identifier (pp
, DECL_NAME (p
));
243 pp_cxx_canonical_template_parameter (pp
, TREE_TYPE (p
));
246 dump_decl (pp
, p
, flags
| TFF_DECL_SPECIFIERS
);
248 if ((flags
& TFF_FUNCTION_DEFAULT_ARGUMENTS
) && a
!= NULL_TREE
)
250 pp_cxx_whitespace (pp
);
252 pp_cxx_whitespace (pp
);
253 if (TREE_CODE (p
) == TYPE_DECL
|| TREE_CODE (p
) == TEMPLATE_DECL
)
254 dump_type (pp
, a
, flags
& ~TFF_CHASE_TYPEDEF
);
256 dump_expr (pp
, 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 (cxx_pretty_printer
*pp
, tree parms
, tree args
,
266 vec
<tree
, va_gc
> *typenames
)
268 bool need_semicolon
= false;
274 tree p
= TREE_VALUE (parms
);
275 int lvl
= TMPL_PARMS_DEPTH (parms
);
278 tree lvl_args
= NULL_TREE
;
280 /* Don't crash if we had an invalid argument list. */
281 if (TMPL_ARGS_DEPTH (args
) >= lvl
)
282 lvl_args
= TMPL_ARGS_LEVEL (args
, lvl
);
284 for (i
= 0; i
< TREE_VEC_LENGTH (p
); ++i
)
286 tree arg
= NULL_TREE
;
288 /* Don't crash if we had an invalid argument list. */
289 if (lvl_args
&& NUM_TMPL_ARGS (lvl_args
) > arg_idx
)
290 arg
= TREE_VEC_ELT (lvl_args
, arg_idx
);
293 pp_separate_with_semicolon (pp
);
294 dump_template_parameter (pp
, TREE_VEC_ELT (p
, i
),
295 TFF_PLAIN_IDENTIFIER
);
296 pp_cxx_whitespace (pp
);
298 pp_cxx_whitespace (pp
);
301 if (ARGUMENT_PACK_P (arg
))
302 pp_cxx_left_brace (pp
);
303 dump_template_argument (pp
, arg
, TFF_PLAIN_IDENTIFIER
);
304 if (ARGUMENT_PACK_P (arg
))
305 pp_cxx_right_brace (pp
);
308 pp_string (pp
, M_("<missing>"));
311 need_semicolon
= true;
314 parms
= TREE_CHAIN (parms
);
317 /* Don't bother with typenames for a partial instantiation. */
318 if (vec_safe_is_empty (typenames
) || uses_template_parms (args
))
321 /* Don't try to print typenames when we're processing a clone. */
322 if (current_function_decl
323 && !DECL_LANG_SPECIFIC (current_function_decl
))
326 FOR_EACH_VEC_SAFE_ELT (typenames
, i
, t
)
329 pp_separate_with_semicolon (pp
);
330 dump_type (pp
, t
, TFF_PLAIN_IDENTIFIER
);
331 pp_cxx_whitespace (pp
);
333 pp_cxx_whitespace (pp
);
334 push_deferring_access_checks (dk_no_check
);
335 t
= tsubst (t
, args
, tf_none
, NULL_TREE
);
336 pop_deferring_access_checks ();
337 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
338 pp_simple_type_specifier doesn't know about it. */
339 t
= strip_typedefs (t
);
340 dump_type (pp
, t
, TFF_PLAIN_IDENTIFIER
);
344 /* Dump a human-readable equivalent of the alias template
345 specialization of T. */
348 dump_alias_template_specialization (cxx_pretty_printer
*pp
, tree t
, int flags
)
352 gcc_assert (alias_template_specialization_p (t
));
354 if (!(flags
& TFF_UNQUALIFIED_NAME
))
355 dump_scope (pp
, CP_DECL_CONTEXT (TYPE_NAME (t
)), flags
);
356 name
= TYPE_IDENTIFIER (t
);
357 pp_cxx_tree_identifier (pp
, name
);
358 dump_template_parms (pp
, TYPE_TEMPLATE_INFO (t
),
360 flags
& ~TFF_TEMPLATE_HEADER
);
363 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
367 dump_type (cxx_pretty_printer
*pp
, tree t
, int flags
)
372 /* Don't print e.g. "struct mytypedef". */
373 if (TYPE_P (t
) && typedef_variant_p (t
))
375 tree decl
= TYPE_NAME (t
);
376 if ((flags
& TFF_CHASE_TYPEDEF
)
377 || DECL_SELF_REFERENCE_P (decl
)
378 || (!flag_pretty_templates
379 && DECL_LANG_SPECIFIC (decl
) && DECL_TEMPLATE_INFO (decl
)))
380 t
= strip_typedefs (t
);
381 else if (alias_template_specialization_p (t
))
383 dump_alias_template_specialization (pp
, t
, flags
);
386 else if (same_type_p (t
, TREE_TYPE (decl
)))
390 pp_cxx_cv_qualifier_seq (pp
, t
);
391 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
396 if (TYPE_PTRMEMFUNC_P (t
))
399 switch (TREE_CODE (t
))
402 if (t
== init_list_type_node
)
403 pp_string (pp
, M_("<brace-enclosed initializer list>"));
404 else if (t
== unknown_type_node
)
405 pp_string (pp
, M_("<unresolved overloaded function type>"));
408 pp_cxx_cv_qualifier_seq (pp
, t
);
409 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
414 /* A list of function parms. */
415 dump_parameters (pp
, t
, flags
);
418 case IDENTIFIER_NODE
:
419 pp_cxx_tree_identifier (pp
, t
);
423 dump_type (pp
, BINFO_TYPE (t
), flags
);
429 dump_aggr_type (pp
, t
, flags
);
433 if (flags
& TFF_CHASE_TYPEDEF
)
435 dump_type (pp
, DECL_ORIGINAL_TYPE (t
)
436 ? DECL_ORIGINAL_TYPE (t
) : TREE_TYPE (t
), flags
);
439 /* Else fall through. */
443 dump_decl (pp
, t
, flags
& ~TFF_DECL_SPECIFIERS
);
452 case FIXED_POINT_TYPE
:
453 pp_type_specifier_seq (pp
, t
);
456 case TEMPLATE_TEMPLATE_PARM
:
457 /* For parameters inside template signature. */
458 if (TYPE_IDENTIFIER (t
))
459 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
461 pp_cxx_canonical_template_parameter (pp
, t
);
464 case BOUND_TEMPLATE_TEMPLATE_PARM
:
466 tree args
= TYPE_TI_ARGS (t
);
467 pp_cxx_cv_qualifier_seq (pp
, t
);
468 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
469 pp_cxx_begin_template_argument_list (pp
);
470 dump_template_argument_list (pp
, args
, flags
);
471 pp_cxx_end_template_argument_list (pp
);
475 case TEMPLATE_TYPE_PARM
:
476 pp_cxx_cv_qualifier_seq (pp
, t
);
477 if (TYPE_IDENTIFIER (t
))
478 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
480 pp_cxx_canonical_template_parameter
481 (pp
, TEMPLATE_TYPE_PARM_INDEX (t
));
484 /* This is not always necessary for pointers and such, but doing this
485 reduces code size. */
494 dump_type_prefix (pp
, t
, flags
);
495 dump_type_suffix (pp
, t
, flags
);
499 if (! (flags
& TFF_CHASE_TYPEDEF
)
500 && DECL_ORIGINAL_TYPE (TYPE_NAME (t
)))
502 dump_decl (pp
, TYPE_NAME (t
), TFF_PLAIN_IDENTIFIER
);
505 pp_cxx_cv_qualifier_seq (pp
, t
);
506 pp_cxx_ws_string (pp
,
507 TYPENAME_IS_ENUM_P (t
) ? "enum"
508 : TYPENAME_IS_CLASS_P (t
) ? "class"
510 dump_typename (pp
, t
, flags
);
513 case UNBOUND_CLASS_TEMPLATE
:
514 if (! (flags
& TFF_UNQUALIFIED_NAME
))
516 dump_type (pp
, TYPE_CONTEXT (t
), flags
);
517 pp_cxx_colon_colon (pp
);
519 pp_cxx_ws_string (pp
, "template");
520 dump_type (pp
, TYPE_IDENTIFIER (t
), flags
);
524 pp_cxx_ws_string (pp
, "__typeof__");
525 pp_cxx_whitespace (pp
);
526 pp_cxx_left_paren (pp
);
527 dump_expr (pp
, TYPEOF_TYPE_EXPR (t
), flags
& ~TFF_EXPR_IN_PARENS
);
528 pp_cxx_right_paren (pp
);
531 case UNDERLYING_TYPE
:
532 pp_cxx_ws_string (pp
, "__underlying_type");
533 pp_cxx_whitespace (pp
);
534 pp_cxx_left_paren (pp
);
535 dump_expr (pp
, UNDERLYING_TYPE_TYPE (t
), flags
& ~TFF_EXPR_IN_PARENS
);
536 pp_cxx_right_paren (pp
);
539 case TYPE_PACK_EXPANSION
:
540 dump_type (pp
, PACK_EXPANSION_PATTERN (t
), flags
);
541 pp_cxx_ws_string (pp
, "...");
544 case TYPE_ARGUMENT_PACK
:
545 dump_template_argument (pp
, t
, flags
);
549 pp_cxx_ws_string (pp
, "decltype");
550 pp_cxx_whitespace (pp
);
551 pp_cxx_left_paren (pp
);
552 dump_expr (pp
, DECLTYPE_TYPE_EXPR (t
), flags
& ~TFF_EXPR_IN_PARENS
);
553 pp_cxx_right_paren (pp
);
557 pp_string (pp
, "std::nullptr_t");
561 pp_unsupported_tree (pp
, t
);
562 /* Fall through to error. */
565 pp_string (pp
, M_("<type error>"));
570 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
574 dump_typename (cxx_pretty_printer
*pp
, tree t
, int flags
)
576 tree ctx
= TYPE_CONTEXT (t
);
578 if (TREE_CODE (ctx
) == TYPENAME_TYPE
)
579 dump_typename (pp
, ctx
, flags
);
581 dump_type (pp
, ctx
, flags
& ~TFF_CLASS_KEY_OR_ENUM
);
582 pp_cxx_colon_colon (pp
);
583 dump_decl (pp
, TYPENAME_TYPE_FULLNAME (t
), flags
);
586 /* Return the name of the supplied aggregate, or enumeral type. */
589 class_key_or_enum_as_string (tree t
)
591 if (TREE_CODE (t
) == ENUMERAL_TYPE
)
593 if (SCOPED_ENUM_P (t
))
598 else if (TREE_CODE (t
) == UNION_TYPE
)
600 else if (TYPE_LANG_SPECIFIC (t
) && CLASSTYPE_DECLARED_CLASS (t
))
606 /* Print out a class declaration T under the control of FLAGS,
607 in the form `class foo'. */
610 dump_aggr_type (cxx_pretty_printer
*pp
, tree t
, int flags
)
613 const char *variety
= class_key_or_enum_as_string (t
);
617 pp_cxx_cv_qualifier_seq (pp
, t
);
619 if (flags
& TFF_CLASS_KEY_OR_ENUM
)
620 pp_cxx_ws_string (pp
, variety
);
622 name
= TYPE_NAME (t
);
626 typdef
= (!DECL_ARTIFICIAL (name
)
627 /* An alias specialization is not considered to be a
629 && !alias_template_specialization_p (t
));
632 && ((flags
& TFF_CHASE_TYPEDEF
)
633 || (!flag_pretty_templates
&& DECL_LANG_SPECIFIC (name
)
634 && DECL_TEMPLATE_INFO (name
))))
635 || DECL_SELF_REFERENCE_P (name
))
637 t
= TYPE_MAIN_VARIANT (t
);
638 name
= TYPE_NAME (t
);
642 tmplate
= !typdef
&& TREE_CODE (t
) != ENUMERAL_TYPE
643 && TYPE_LANG_SPECIFIC (t
) && CLASSTYPE_TEMPLATE_INFO (t
)
644 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t
)) != TEMPLATE_DECL
645 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t
)));
647 if (! (flags
& TFF_UNQUALIFIED_NAME
))
648 dump_scope (pp
, CP_DECL_CONTEXT (name
), flags
| TFF_SCOPE
);
649 flags
&= ~TFF_UNQUALIFIED_NAME
;
652 /* Because the template names are mangled, we have to locate
653 the most general template, and use that name. */
654 tree tpl
= TYPE_TI_TEMPLATE (t
);
656 while (DECL_TEMPLATE_INFO (tpl
))
657 tpl
= DECL_TI_TEMPLATE (tpl
);
660 name
= DECL_NAME (name
);
663 if (name
== 0 || ANON_AGGRNAME_P (name
))
665 if (flags
& TFF_CLASS_KEY_OR_ENUM
)
666 pp_string (pp
, M_("<anonymous>"));
668 pp_printf (pp
, M_("<anonymous %s>"), variety
);
670 else if (LAMBDA_TYPE_P (t
))
672 /* A lambda's "type" is essentially its signature. */
673 pp_string (pp
, M_("<lambda"));
674 if (lambda_function (t
))
676 FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t
)),
681 pp_cxx_tree_identifier (pp
, name
);
683 dump_template_parms (pp
, TYPE_TEMPLATE_INFO (t
),
684 !CLASSTYPE_USE_TEMPLATE (t
),
685 flags
& ~TFF_TEMPLATE_HEADER
);
688 /* Dump into the obstack the initial part of the output for a given type.
689 This is necessary when dealing with things like functions returning
692 return type of `int (* fee ())()': pointer -> function -> int. Both
693 pointer (and reference and offset) and function (and member) types must
694 deal with prefix and suffix.
696 Arrays must also do this for DECL nodes, like int a[], and for things like
700 dump_type_prefix (cxx_pretty_printer
*pp
, tree t
, int flags
)
702 if (TYPE_PTRMEMFUNC_P (t
))
704 t
= TYPE_PTRMEMFUNC_FN_TYPE (t
);
708 switch (TREE_CODE (t
))
713 tree sub
= TREE_TYPE (t
);
715 dump_type_prefix (pp
, sub
, flags
);
716 if (TREE_CODE (sub
) == ARRAY_TYPE
717 || TREE_CODE (sub
) == FUNCTION_TYPE
)
719 pp_cxx_whitespace (pp
);
720 pp_cxx_left_paren (pp
);
721 pp_c_attributes_display (pp
, TYPE_ATTRIBUTES (sub
));
725 else if (TREE_CODE (t
) == REFERENCE_TYPE
)
727 if (TYPE_REF_IS_RVALUE (t
))
728 pp_ampersand_ampersand (pp
);
732 pp
->padding
= pp_before
;
733 pp_cxx_cv_qualifier_seq (pp
, t
);
739 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
740 if (TREE_CODE (t
) == OFFSET_TYPE
) /* pmfs deal with this in d_t_p */
743 if (TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
)
744 pp_cxx_left_paren (pp
);
745 dump_type (pp
, TYPE_OFFSET_BASETYPE (t
), flags
);
746 pp_cxx_colon_colon (pp
);
749 pp_cxx_cv_qualifier_seq (pp
, t
);
750 pp
->padding
= pp_before
;
753 /* This can be reached without a pointer when dealing with
754 templates, e.g. std::is_function. */
756 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
760 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
762 pp_cxx_left_paren (pp
);
763 dump_aggr_type (pp
, TYPE_METHOD_BASETYPE (t
), flags
);
764 pp_cxx_colon_colon (pp
);
768 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
772 case IDENTIFIER_NODE
:
777 case TEMPLATE_TYPE_PARM
:
778 case TEMPLATE_TEMPLATE_PARM
:
779 case BOUND_TEMPLATE_TEMPLATE_PARM
:
790 case UNDERLYING_TYPE
:
792 case TYPE_PACK_EXPANSION
:
793 case FIXED_POINT_TYPE
:
795 dump_type (pp
, t
, flags
);
796 pp
->padding
= pp_before
;
800 pp_unsupported_tree (pp
, t
);
803 pp_string (pp
, M_("<typeprefixerror>"));
808 /* Dump the suffix of type T, under control of FLAGS. This is the part
809 which appears after the identifier (or function parms). */
812 dump_type_suffix (cxx_pretty_printer
*pp
, tree t
, int flags
)
814 if (TYPE_PTRMEMFUNC_P (t
))
815 t
= TYPE_PTRMEMFUNC_FN_TYPE (t
);
817 switch (TREE_CODE (t
))
822 if (TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
823 || TREE_CODE (TREE_TYPE (t
)) == FUNCTION_TYPE
)
824 pp_cxx_right_paren (pp
);
825 dump_type_suffix (pp
, TREE_TYPE (t
), flags
);
832 if (TREE_CODE (t
) == METHOD_TYPE
)
833 /* Can only be reached through a pointer. */
834 pp_cxx_right_paren (pp
);
835 arg
= TYPE_ARG_TYPES (t
);
836 if (TREE_CODE (t
) == METHOD_TYPE
)
837 arg
= TREE_CHAIN (arg
);
839 /* Function pointers don't have default args. Not in standard C++,
840 anyway; they may in g++, but we'll just pretend otherwise. */
841 dump_parameters (pp
, arg
, flags
& ~TFF_FUNCTION_DEFAULT_ARGUMENTS
);
843 pp
->padding
= pp_before
;
844 pp_cxx_cv_qualifiers (pp
, type_memfn_quals (t
));
845 dump_ref_qualifier (pp
, t
, flags
);
846 dump_exception_spec (pp
, TYPE_RAISES_EXCEPTIONS (t
), flags
);
847 dump_type_suffix (pp
, TREE_TYPE (t
), flags
);
853 pp_cxx_left_bracket (pp
);
856 tree dtype
= TYPE_DOMAIN (t
);
857 tree max
= TYPE_MAX_VALUE (dtype
);
858 if (integer_all_onesp (max
))
859 pp_character (pp
, '0');
860 else if (tree_fits_shwi_p (max
))
861 pp_wide_integer (pp
, tree_to_shwi (max
) + 1);
865 if (TREE_CODE (max
) == SAVE_EXPR
)
866 max
= TREE_OPERAND (max
, 0);
867 if (TREE_CODE (max
) == MINUS_EXPR
868 || TREE_CODE (max
) == PLUS_EXPR
)
870 max
= TREE_OPERAND (max
, 0);
871 while (CONVERT_EXPR_P (max
))
872 max
= TREE_OPERAND (max
, 0);
875 max
= fold_build2_loc (input_location
,
876 PLUS_EXPR
, dtype
, max
,
877 build_int_cst (dtype
, 1));
878 dump_expr (pp
, max
, flags
& ~TFF_EXPR_IN_PARENS
);
881 pp_cxx_right_bracket (pp
);
882 dump_type_suffix (pp
, TREE_TYPE (t
), flags
);
886 case IDENTIFIER_NODE
:
891 case TEMPLATE_TYPE_PARM
:
892 case TEMPLATE_TEMPLATE_PARM
:
893 case BOUND_TEMPLATE_TEMPLATE_PARM
:
904 case UNDERLYING_TYPE
:
906 case TYPE_PACK_EXPANSION
:
907 case FIXED_POINT_TYPE
:
912 pp_unsupported_tree (pp
, t
);
914 /* Don't mark it here, we should have already done in
921 dump_global_iord (cxx_pretty_printer
*pp
, tree t
)
923 const char *p
= NULL
;
925 if (DECL_GLOBAL_CTOR_P (t
))
926 p
= M_("(static initializers for %s)");
927 else if (DECL_GLOBAL_DTOR_P (t
))
928 p
= M_("(static destructors for %s)");
932 pp_printf (pp
, p
, LOCATION_FILE (input_location
));
936 dump_simple_decl (cxx_pretty_printer
*pp
, tree t
, tree type
, int flags
)
938 if (flags
& TFF_DECL_SPECIFIERS
)
941 && DECL_DECLARED_CONSTEXPR_P (t
))
942 pp_cxx_ws_string (pp
, "constexpr");
943 dump_type_prefix (pp
, type
, flags
& ~TFF_UNQUALIFIED_NAME
);
946 if (! (flags
& TFF_UNQUALIFIED_NAME
)
947 && TREE_CODE (t
) != PARM_DECL
948 && (!DECL_INITIAL (t
)
949 || TREE_CODE (DECL_INITIAL (t
)) != TEMPLATE_PARM_INDEX
))
950 dump_scope (pp
, CP_DECL_CONTEXT (t
), flags
);
951 flags
&= ~TFF_UNQUALIFIED_NAME
;
952 if ((flags
& TFF_DECL_SPECIFIERS
)
953 && DECL_TEMPLATE_PARM_P (t
)
954 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t
)))
955 pp_string (pp
, "...");
958 if (TREE_CODE (t
) == FIELD_DECL
&& DECL_NORMAL_CAPTURE_P (t
))
961 pp_string (pp
, IDENTIFIER_POINTER (DECL_NAME (t
)) + 2);
962 pp_string (pp
, " capture>");
965 dump_decl (pp
, DECL_NAME (t
), flags
);
968 pp_string (pp
, M_("<anonymous>"));
969 if (flags
& TFF_DECL_SPECIFIERS
)
970 dump_type_suffix (pp
, type
, flags
);
973 /* Dump a human readable string for the decl T under control of FLAGS. */
976 dump_decl (cxx_pretty_printer
*pp
, tree t
, int flags
)
981 /* If doing Objective-C++, give Objective-C a chance to demangle
982 Objective-C method names. */
983 if (c_dialect_objc ())
985 const char *demangled
= objc_maybe_printable_name (t
, flags
);
988 pp_string (pp
, demangled
);
993 switch (TREE_CODE (t
))
996 /* Don't say 'typedef class A' */
997 if (DECL_ARTIFICIAL (t
) && !DECL_SELF_REFERENCE_P (t
))
999 if ((flags
& TFF_DECL_SPECIFIERS
)
1000 && TREE_CODE (TREE_TYPE (t
)) == TEMPLATE_TYPE_PARM
)
1002 /* Say `class T' not just `T'. */
1003 pp_cxx_ws_string (pp
, "class");
1005 /* Emit the `...' for a parameter pack. */
1006 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t
)))
1007 pp_cxx_ws_string (pp
, "...");
1010 dump_type (pp
, TREE_TYPE (t
), flags
);
1013 if (TYPE_DECL_ALIAS_P (t
)
1014 && (flags
& TFF_DECL_SPECIFIERS
1015 || flags
& TFF_CLASS_KEY_OR_ENUM
))
1017 pp_cxx_ws_string (pp
, "using");
1018 dump_decl (pp
, DECL_NAME (t
), flags
);
1019 pp_cxx_whitespace (pp
);
1020 pp_cxx_ws_string (pp
, "=");
1021 pp_cxx_whitespace (pp
);
1022 dump_type (pp
, DECL_ORIGINAL_TYPE (t
), flags
);
1025 if ((flags
& TFF_DECL_SPECIFIERS
)
1026 && !DECL_SELF_REFERENCE_P (t
))
1027 pp_cxx_ws_string (pp
, "typedef");
1028 dump_simple_decl (pp
, t
, DECL_ORIGINAL_TYPE (t
)
1029 ? DECL_ORIGINAL_TYPE (t
) : TREE_TYPE (t
),
1034 if (DECL_NAME (t
) && VTABLE_NAME_P (DECL_NAME (t
)))
1036 pp_string (pp
, M_("vtable for "));
1037 gcc_assert (TYPE_P (DECL_CONTEXT (t
)));
1038 dump_type (pp
, DECL_CONTEXT (t
), flags
);
1041 /* Else fall through. */
1044 dump_simple_decl (pp
, t
, TREE_TYPE (t
), flags
);
1048 pp_string (pp
, M_("<return value> "));
1049 dump_simple_decl (pp
, t
, TREE_TYPE (t
), flags
);
1052 case NAMESPACE_DECL
:
1053 if (flags
& TFF_DECL_SPECIFIERS
)
1054 pp
->declaration (t
);
1057 if (! (flags
& TFF_UNQUALIFIED_NAME
))
1058 dump_scope (pp
, CP_DECL_CONTEXT (t
), flags
);
1059 flags
&= ~TFF_UNQUALIFIED_NAME
;
1060 if (DECL_NAME (t
) == NULL_TREE
)
1062 if (!(pp
->flags
& pp_c_flag_gnu_v3
))
1063 pp_cxx_ws_string (pp
, M_("{anonymous}"));
1065 pp_cxx_ws_string (pp
, M_("(anonymous namespace)"));
1068 pp_cxx_tree_identifier (pp
, DECL_NAME (t
));
1073 dump_type (pp
, TREE_OPERAND (t
, 0), flags
);
1074 pp_colon_colon (pp
);
1075 dump_decl (pp
, TREE_OPERAND (t
, 1), TFF_UNQUALIFIED_NAME
);
1079 dump_decl (pp
, TREE_OPERAND (t
, 0), flags
);
1080 pp_cxx_left_bracket (pp
);
1081 dump_decl (pp
, TREE_OPERAND (t
, 1), flags
);
1082 pp_cxx_right_bracket (pp
);
1085 case ARRAY_NOTATION_REF
:
1086 dump_decl (pp
, ARRAY_NOTATION_ARRAY (t
), flags
| TFF_EXPR_IN_PARENS
);
1087 pp_cxx_left_bracket (pp
);
1088 dump_decl (pp
, ARRAY_NOTATION_START (t
), flags
| TFF_EXPR_IN_PARENS
);
1090 dump_decl (pp
, ARRAY_NOTATION_LENGTH (t
), flags
| TFF_EXPR_IN_PARENS
);
1092 dump_decl (pp
, ARRAY_NOTATION_STRIDE (t
), flags
| TFF_EXPR_IN_PARENS
);
1093 pp_cxx_right_bracket (pp
);
1096 /* So that we can do dump_decl on an aggr type. */
1100 dump_type (pp
, t
, flags
);
1104 /* This is a pseudo destructor call which has not been folded into
1105 a PSEUDO_DTOR_EXPR yet. */
1106 pp_cxx_complement (pp
);
1107 dump_type (pp
, TREE_OPERAND (t
, 0), flags
);
1114 /* These special cases are duplicated here so that other functions
1115 can feed identifiers to error and get them demangled properly. */
1116 case IDENTIFIER_NODE
:
1117 if (IDENTIFIER_TYPENAME_P (t
))
1119 pp_cxx_ws_string (pp
, "operator");
1120 /* Not exactly IDENTIFIER_TYPE_VALUE. */
1121 dump_type (pp
, TREE_TYPE (t
), flags
);
1125 pp_cxx_tree_identifier (pp
, t
);
1131 t
= OVL_CURRENT (t
);
1132 if (DECL_CLASS_SCOPE_P (t
))
1134 dump_type (pp
, DECL_CONTEXT (t
), flags
);
1135 pp_cxx_colon_colon (pp
);
1137 else if (!DECL_FILE_SCOPE_P (t
))
1139 dump_decl (pp
, DECL_CONTEXT (t
), flags
);
1140 pp_cxx_colon_colon (pp
);
1142 dump_decl (pp
, DECL_NAME (t
), flags
);
1146 /* If there's only one function, just treat it like an ordinary
1148 t
= OVL_CURRENT (t
);
1152 if (! DECL_LANG_SPECIFIC (t
))
1154 if (DECL_ABSTRACT_ORIGIN (t
))
1155 dump_decl (pp
, DECL_ABSTRACT_ORIGIN (t
), flags
);
1157 pp_string (pp
, M_("<built-in>"));
1159 else if (DECL_GLOBAL_CTOR_P (t
) || DECL_GLOBAL_DTOR_P (t
))
1160 dump_global_iord (pp
, t
);
1162 dump_function_decl (pp
, t
, flags
);
1166 dump_template_decl (pp
, t
, flags
);
1169 case TEMPLATE_ID_EXPR
:
1171 tree name
= TREE_OPERAND (t
, 0);
1172 tree args
= TREE_OPERAND (t
, 1);
1174 if (is_overloaded_fn (name
))
1175 name
= DECL_NAME (get_first_fn (name
));
1176 dump_decl (pp
, name
, flags
);
1177 pp_cxx_begin_template_argument_list (pp
);
1178 if (args
== error_mark_node
)
1179 pp_string (pp
, M_("<template arguments error>"));
1181 dump_template_argument_list (pp
, args
, flags
);
1182 pp_cxx_end_template_argument_list (pp
);
1187 pp_cxx_tree_identifier (pp
, DECL_NAME (t
));
1191 if ((TREE_TYPE (t
) != NULL_TREE
&& NEXT_CODE (t
) == ENUMERAL_TYPE
)
1192 || (DECL_INITIAL (t
) &&
1193 TREE_CODE (DECL_INITIAL (t
)) == TEMPLATE_PARM_INDEX
))
1194 dump_simple_decl (pp
, t
, TREE_TYPE (t
), flags
);
1195 else if (DECL_NAME (t
))
1196 dump_decl (pp
, DECL_NAME (t
), flags
);
1197 else if (DECL_INITIAL (t
))
1198 dump_expr (pp
, DECL_INITIAL (t
), flags
| TFF_EXPR_IN_PARENS
);
1200 pp_string (pp
, M_("<enumerator>"));
1204 pp_cxx_ws_string (pp
, "using");
1205 dump_type (pp
, USING_DECL_SCOPE (t
), flags
);
1206 pp_cxx_colon_colon (pp
);
1207 dump_decl (pp
, DECL_NAME (t
), flags
);
1211 pp
->declaration (t
);
1215 dump_decl (pp
, BASELINK_FUNCTIONS (t
), flags
);
1218 case NON_DEPENDENT_EXPR
:
1219 dump_expr (pp
, t
, flags
);
1222 case TEMPLATE_TYPE_PARM
:
1223 if (flags
& TFF_DECL_SPECIFIERS
)
1224 pp
->declaration (t
);
1229 case UNBOUND_CLASS_TEMPLATE
:
1230 case TYPE_PACK_EXPANSION
:
1232 dump_type (pp
, t
, flags
);
1236 pp_unsupported_tree (pp
, t
);
1237 /* Fall through to error. */
1240 pp_string (pp
, M_("<declaration error>"));
1245 /* Dump a template declaration T under control of FLAGS. This means the
1246 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1249 dump_template_decl (cxx_pretty_printer
*pp
, tree t
, int flags
)
1251 tree orig_parms
= DECL_TEMPLATE_PARMS (t
);
1255 if (flags
& TFF_TEMPLATE_HEADER
)
1257 for (parms
= orig_parms
= nreverse (orig_parms
);
1259 parms
= TREE_CHAIN (parms
))
1261 tree inner_parms
= INNERMOST_TEMPLATE_PARMS (parms
);
1262 int len
= TREE_VEC_LENGTH (inner_parms
);
1264 pp_cxx_ws_string (pp
, "template");
1265 pp_cxx_begin_template_argument_list (pp
);
1267 /* If we've shown the template prefix, we'd better show the
1268 parameters' and decl's type too. */
1269 flags
|= TFF_DECL_SPECIFIERS
;
1271 for (i
= 0; i
< len
; i
++)
1274 pp_separate_with_comma (pp
);
1275 dump_template_parameter (pp
, TREE_VEC_ELT (inner_parms
, i
),
1278 pp_cxx_end_template_argument_list (pp
);
1279 pp_cxx_whitespace (pp
);
1281 nreverse(orig_parms
);
1283 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t
))
1285 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1286 pp_cxx_ws_string (pp
, "class");
1288 /* If this is a parameter pack, print the ellipsis. */
1289 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t
)))
1290 pp_cxx_ws_string (pp
, "...");
1294 if (DECL_CLASS_TEMPLATE_P (t
))
1295 dump_type (pp
, TREE_TYPE (t
),
1296 ((flags
& ~TFF_CLASS_KEY_OR_ENUM
) | TFF_TEMPLATE_NAME
1297 | (flags
& TFF_DECL_SPECIFIERS
? TFF_CLASS_KEY_OR_ENUM
: 0)));
1298 else if (DECL_TEMPLATE_RESULT (t
)
1299 && (VAR_P (DECL_TEMPLATE_RESULT (t
))
1300 /* Alias template. */
1301 || DECL_TYPE_TEMPLATE_P (t
)))
1302 dump_decl (pp
, DECL_TEMPLATE_RESULT (t
), flags
| TFF_TEMPLATE_NAME
);
1305 gcc_assert (TREE_TYPE (t
));
1306 switch (NEXT_CODE (t
))
1310 dump_function_decl (pp
, t
, flags
| TFF_TEMPLATE_NAME
);
1313 /* This case can occur with some invalid code. */
1314 dump_type (pp
, TREE_TYPE (t
),
1315 (flags
& ~TFF_CLASS_KEY_OR_ENUM
) | TFF_TEMPLATE_NAME
1316 | (flags
& TFF_DECL_SPECIFIERS
1317 ? TFF_CLASS_KEY_OR_ENUM
: 0));
1322 /* find_typenames looks through the type of the function template T
1323 and returns a vec containing any typedefs, decltypes or TYPENAME_TYPEs
1326 struct find_typenames_t
1328 hash_set
<tree
> *p_set
;
1329 vec
<tree
, va_gc
> *typenames
;
1333 find_typenames_r (tree
*tp
, int *walk_subtrees
, void *data
)
1335 struct find_typenames_t
*d
= (struct find_typenames_t
*)data
;
1336 tree mv
= NULL_TREE
;
1338 if (TYPE_P (*tp
) && is_typedef_decl (TYPE_NAME (*tp
)))
1339 /* Add the type of the typedef without any additional cv-quals. */
1340 mv
= TREE_TYPE (TYPE_NAME (*tp
));
1341 else if (TREE_CODE (*tp
) == TYPENAME_TYPE
1342 || TREE_CODE (*tp
) == DECLTYPE_TYPE
)
1343 /* Add the typename without any cv-qualifiers. */
1344 mv
= TYPE_MAIN_VARIANT (*tp
);
1346 if (TREE_CODE (*tp
) == TYPE_PACK_EXPANSION
)
1348 /* Don't mess with parameter packs since we don't remember
1349 the pack expansion context for a particular typename. */
1350 *walk_subtrees
= false;
1354 if (mv
&& (mv
== *tp
|| !d
->p_set
->add (mv
)))
1355 vec_safe_push (d
->typenames
, mv
);
1357 /* Search into class template arguments, which cp_walk_subtrees
1359 if (CLASS_TYPE_P (*tp
) && CLASSTYPE_TEMPLATE_INFO (*tp
))
1360 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp
), find_typenames_r
,
1366 static vec
<tree
, va_gc
> *
1367 find_typenames (tree t
)
1369 struct find_typenames_t ft
;
1370 ft
.p_set
= new hash_set
<tree
>;
1371 ft
.typenames
= NULL
;
1372 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t
)),
1373 find_typenames_r
, &ft
, ft
.p_set
);
1375 return ft
.typenames
;
1378 /* Output the "[with ...]" clause for a template instantiation T iff
1379 TEMPLATE_PARMS, TEMPLATE_ARGS and FLAGS are suitable. T may be NULL if
1380 formatting a deduction/substitution diagnostic rather than an
1384 dump_substitution (cxx_pretty_printer
*pp
,
1385 tree t
, tree template_parms
, tree template_args
,
1388 if (template_parms
!= NULL_TREE
&& template_args
!= NULL_TREE
1389 && !(flags
& TFF_NO_TEMPLATE_BINDINGS
))
1391 vec
<tree
, va_gc
> *typenames
= t
? find_typenames (t
) : NULL
;
1392 pp_cxx_whitespace (pp
);
1393 pp_cxx_left_bracket (pp
);
1394 pp
->translate_string ("with");
1395 pp_cxx_whitespace (pp
);
1396 dump_template_bindings (pp
, template_parms
, template_args
, typenames
);
1397 pp_cxx_right_bracket (pp
);
1401 /* Dump the lambda function FN including its 'mutable' qualifier and any
1402 template bindings. */
1405 dump_lambda_function (cxx_pretty_printer
*pp
,
1406 tree fn
, tree template_parms
, tree template_args
,
1409 /* A lambda's signature is essentially its "type". */
1410 dump_type (pp
, DECL_CONTEXT (fn
), flags
);
1411 if (!(TYPE_QUALS (class_of_this_parm (TREE_TYPE (fn
))) & TYPE_QUAL_CONST
))
1413 pp
->padding
= pp_before
;
1414 pp_c_ws_string (pp
, "mutable");
1416 dump_substitution (pp
, fn
, template_parms
, template_args
, flags
);
1419 /* Pretty print a function decl. There are several ways we want to print a
1420 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1421 As error can only apply the '#' flag once to give 0 and 1 for V, there
1422 is %D which doesn't print the throw specs, and %F which does. */
1425 dump_function_decl (cxx_pretty_printer
*pp
, tree t
, int flags
)
1429 tree cname
= NULL_TREE
;
1430 tree template_args
= NULL_TREE
;
1431 tree template_parms
= NULL_TREE
;
1432 int show_return
= flags
& TFF_RETURN_TYPE
|| flags
& TFF_DECL_SPECIFIERS
;
1433 int do_outer_scope
= ! (flags
& TFF_UNQUALIFIED_NAME
);
1436 flags
&= ~(TFF_UNQUALIFIED_NAME
| TFF_TEMPLATE_NAME
);
1437 if (TREE_CODE (t
) == TEMPLATE_DECL
)
1438 t
= DECL_TEMPLATE_RESULT (t
);
1440 /* Save the exceptions, in case t is a specialization and we are
1441 emitting an error about incompatible specifications. */
1442 exceptions
= TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t
));
1444 /* Pretty print template instantiations only. */
1445 if (DECL_USE_TEMPLATE (t
) && DECL_TEMPLATE_INFO (t
)
1446 && flag_pretty_templates
)
1450 template_args
= DECL_TI_ARGS (t
);
1451 tmpl
= most_general_template (t
);
1452 if (tmpl
&& TREE_CODE (tmpl
) == TEMPLATE_DECL
)
1454 template_parms
= DECL_TEMPLATE_PARMS (tmpl
);
1459 if (DECL_NAME (t
) && LAMBDA_FUNCTION_P (t
))
1460 return dump_lambda_function (pp
, t
, template_parms
, template_args
, flags
);
1462 fntype
= TREE_TYPE (t
);
1463 parmtypes
= FUNCTION_FIRST_USER_PARMTYPE (t
);
1465 if (DECL_CLASS_SCOPE_P (t
))
1466 cname
= DECL_CONTEXT (t
);
1467 /* This is for partially instantiated template methods. */
1468 else if (TREE_CODE (fntype
) == METHOD_TYPE
)
1469 cname
= TREE_TYPE (TREE_VALUE (parmtypes
));
1471 if (flags
& TFF_DECL_SPECIFIERS
)
1473 if (DECL_STATIC_FUNCTION_P (t
))
1474 pp_cxx_ws_string (pp
, "static");
1475 else if (DECL_VIRTUAL_P (t
))
1476 pp_cxx_ws_string (pp
, "virtual");
1478 if (DECL_DECLARED_CONSTEXPR_P (t
))
1479 pp_cxx_ws_string (pp
, "constexpr");
1482 /* Print the return type? */
1484 show_return
= !DECL_CONV_FN_P (t
) && !DECL_CONSTRUCTOR_P (t
)
1485 && !DECL_DESTRUCTOR_P (t
);
1488 tree ret
= fndecl_declared_return_type (t
);
1489 dump_type_prefix (pp
, ret
, flags
);
1492 /* Print the function name. */
1493 if (!do_outer_scope
)
1497 dump_type (pp
, cname
, flags
);
1498 pp_cxx_colon_colon (pp
);
1501 dump_scope (pp
, CP_DECL_CONTEXT (t
), flags
);
1503 dump_function_name (pp
, t
, flags
);
1505 if (!(flags
& TFF_NO_FUNCTION_ARGUMENTS
))
1507 dump_parameters (pp
, parmtypes
, flags
);
1509 if (TREE_CODE (fntype
) == METHOD_TYPE
)
1511 pp
->padding
= pp_before
;
1512 pp_cxx_cv_qualifier_seq (pp
, class_of_this_parm (fntype
));
1513 dump_ref_qualifier (pp
, fntype
, flags
);
1516 if (flags
& TFF_EXCEPTION_SPECIFICATION
)
1518 pp
->padding
= pp_before
;
1519 dump_exception_spec (pp
, exceptions
, flags
);
1523 dump_type_suffix (pp
, TREE_TYPE (fntype
), flags
);
1525 dump_substitution (pp
, t
, template_parms
, template_args
, flags
);
1527 else if (template_args
)
1529 bool need_comma
= false;
1531 pp_cxx_begin_template_argument_list (pp
);
1532 template_args
= INNERMOST_TEMPLATE_ARGS (template_args
);
1533 for (i
= 0; i
< TREE_VEC_LENGTH (template_args
); ++i
)
1535 tree arg
= TREE_VEC_ELT (template_args
, i
);
1537 pp_separate_with_comma (pp
);
1538 if (ARGUMENT_PACK_P (arg
))
1539 pp_cxx_left_brace (pp
);
1540 dump_template_argument (pp
, arg
, TFF_PLAIN_IDENTIFIER
);
1541 if (ARGUMENT_PACK_P (arg
))
1542 pp_cxx_right_brace (pp
);
1545 pp_cxx_end_template_argument_list (pp
);
1549 /* Print a parameter list. If this is for a member function, the
1550 member object ptr (and any other hidden args) should have
1551 already been removed. */
1554 dump_parameters (cxx_pretty_printer
*pp
, tree parmtypes
, int flags
)
1557 flags
&= ~TFF_SCOPE
;
1558 pp_cxx_left_paren (pp
);
1560 for (first
= 1; parmtypes
!= void_list_node
;
1561 parmtypes
= TREE_CHAIN (parmtypes
))
1564 pp_separate_with_comma (pp
);
1568 pp_cxx_ws_string (pp
, "...");
1572 dump_type (pp
, TREE_VALUE (parmtypes
), flags
);
1574 if ((flags
& TFF_FUNCTION_DEFAULT_ARGUMENTS
) && TREE_PURPOSE (parmtypes
))
1576 pp_cxx_whitespace (pp
);
1578 pp_cxx_whitespace (pp
);
1579 dump_expr (pp
, TREE_PURPOSE (parmtypes
), flags
| TFF_EXPR_IN_PARENS
);
1583 pp_cxx_right_paren (pp
);
1586 /* Print ref-qualifier of a FUNCTION_TYPE or METHOD_TYPE. FLAGS are ignored. */
1589 dump_ref_qualifier (cxx_pretty_printer
*pp
, tree t
, int flags ATTRIBUTE_UNUSED
)
1591 if (FUNCTION_REF_QUALIFIED (t
))
1593 pp
->padding
= pp_before
;
1594 if (FUNCTION_RVALUE_QUALIFIED (t
))
1595 pp_cxx_ws_string (pp
, "&&");
1597 pp_cxx_ws_string (pp
, "&");
1601 /* Print an exception specification. T is the exception specification. */
1604 dump_exception_spec (cxx_pretty_printer
*pp
, tree t
, int flags
)
1606 if (t
&& TREE_PURPOSE (t
))
1608 pp_cxx_ws_string (pp
, "noexcept");
1609 if (!integer_onep (TREE_PURPOSE (t
)))
1611 pp_cxx_whitespace (pp
);
1612 pp_cxx_left_paren (pp
);
1613 if (DEFERRED_NOEXCEPT_SPEC_P (t
))
1614 pp_cxx_ws_string (pp
, "<uninstantiated>");
1616 dump_expr (pp
, TREE_PURPOSE (t
), flags
);
1617 pp_cxx_right_paren (pp
);
1622 pp_cxx_ws_string (pp
, "throw");
1623 pp_cxx_whitespace (pp
);
1624 pp_cxx_left_paren (pp
);
1625 if (TREE_VALUE (t
) != NULL_TREE
)
1628 dump_type (pp
, TREE_VALUE (t
), flags
);
1632 pp_separate_with_comma (pp
);
1634 pp_cxx_right_paren (pp
);
1638 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1639 and destructors properly. */
1642 dump_function_name (cxx_pretty_printer
*pp
, tree t
, int flags
)
1644 tree name
= DECL_NAME (t
);
1646 /* We can get here with a decl that was synthesized by language-
1647 independent machinery (e.g. coverage.c) in which case it won't
1648 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1649 will crash. In this case it is safe just to print out the
1651 if (!DECL_LANG_SPECIFIC (t
))
1653 pp_cxx_tree_identifier (pp
, name
);
1657 if (TREE_CODE (t
) == TEMPLATE_DECL
)
1658 t
= DECL_TEMPLATE_RESULT (t
);
1660 /* Don't let the user see __comp_ctor et al. */
1661 if (DECL_CONSTRUCTOR_P (t
)
1662 || DECL_DESTRUCTOR_P (t
))
1664 if (LAMBDA_TYPE_P (DECL_CONTEXT (t
)))
1665 name
= get_identifier ("<lambda>");
1666 else if (TYPE_ANONYMOUS_P (DECL_CONTEXT (t
)))
1667 name
= get_identifier ("<constructor>");
1669 name
= constructor_name (DECL_CONTEXT (t
));
1672 if (DECL_DESTRUCTOR_P (t
))
1674 pp_cxx_complement (pp
);
1675 dump_decl (pp
, name
, TFF_PLAIN_IDENTIFIER
);
1677 else if (DECL_CONV_FN_P (t
))
1679 /* This cannot use the hack that the operator's return
1680 type is stashed off of its name because it may be
1681 used for error reporting. In the case of conflicting
1682 declarations, both will have the same name, yet
1683 the types will be different, hence the TREE_TYPE field
1684 of the first name will be clobbered by the second. */
1685 pp_cxx_ws_string (pp
, "operator");
1686 dump_type (pp
, TREE_TYPE (TREE_TYPE (t
)), flags
);
1688 else if (name
&& IDENTIFIER_OPNAME_P (name
))
1689 pp_cxx_tree_identifier (pp
, name
);
1690 else if (name
&& UDLIT_OPER_P (name
))
1691 pp_cxx_tree_identifier (pp
, name
);
1693 dump_decl (pp
, name
, flags
);
1695 if (DECL_TEMPLATE_INFO (t
)
1696 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t
)
1697 && (TREE_CODE (DECL_TI_TEMPLATE (t
)) != TEMPLATE_DECL
1698 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t
))))
1699 dump_template_parms (pp
, DECL_TEMPLATE_INFO (t
), !DECL_USE_TEMPLATE (t
),
1703 /* Dump the template parameters from the template info INFO under control of
1704 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1705 specialization (partial or complete). For partial specializations we show
1706 the specialized parameter values. For a primary template we show no
1710 dump_template_parms (cxx_pretty_printer
*pp
, tree info
,
1711 int primary
, int flags
)
1713 tree args
= info
? TI_ARGS (info
) : NULL_TREE
;
1715 if (primary
&& flags
& TFF_TEMPLATE_NAME
)
1717 flags
&= ~(TFF_CLASS_KEY_OR_ENUM
| TFF_TEMPLATE_NAME
);
1718 pp_cxx_begin_template_argument_list (pp
);
1720 /* Be careful only to print things when we have them, so as not
1721 to crash producing error messages. */
1722 if (args
&& !primary
)
1725 len
= get_non_default_template_args_count (args
, flags
);
1727 args
= INNERMOST_TEMPLATE_ARGS (args
);
1728 for (ix
= 0; ix
!= len
; ix
++)
1730 tree arg
= TREE_VEC_ELT (args
, ix
);
1732 /* Only print a comma if we know there is an argument coming. In
1733 the case of an empty template argument pack, no actual
1734 argument will be printed. */
1736 && (!ARGUMENT_PACK_P (arg
)
1737 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg
)) > 0))
1738 pp_separate_with_comma (pp
);
1741 pp_string (pp
, M_("<template parameter error>"));
1743 dump_template_argument (pp
, arg
, flags
);
1748 tree tpl
= TI_TEMPLATE (info
);
1749 tree parms
= DECL_TEMPLATE_PARMS (tpl
);
1752 parms
= TREE_CODE (parms
) == TREE_LIST
? TREE_VALUE (parms
) : NULL_TREE
;
1753 len
= parms
? TREE_VEC_LENGTH (parms
) : 0;
1755 for (ix
= 0; ix
!= len
; ix
++)
1759 if (TREE_VEC_ELT (parms
, ix
) == error_mark_node
)
1761 pp_string (pp
, M_("<template parameter error>"));
1765 parm
= TREE_VALUE (TREE_VEC_ELT (parms
, ix
));
1768 pp_separate_with_comma (pp
);
1770 dump_decl (pp
, parm
, flags
& ~TFF_DECL_SPECIFIERS
);
1773 pp_cxx_end_template_argument_list (pp
);
1776 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1777 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1780 dump_call_expr_args (cxx_pretty_printer
*pp
, tree t
, int flags
, bool skipfirst
)
1783 call_expr_arg_iterator iter
;
1785 pp_cxx_left_paren (pp
);
1786 FOR_EACH_CALL_EXPR_ARG (arg
, iter
, t
)
1792 dump_expr (pp
, arg
, flags
| TFF_EXPR_IN_PARENS
);
1793 if (more_call_expr_args_p (&iter
))
1794 pp_separate_with_comma (pp
);
1797 pp_cxx_right_paren (pp
);
1800 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1801 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1805 dump_aggr_init_expr_args (cxx_pretty_printer
*pp
, tree t
, int flags
,
1809 aggr_init_expr_arg_iterator iter
;
1811 pp_cxx_left_paren (pp
);
1812 FOR_EACH_AGGR_INIT_EXPR_ARG (arg
, iter
, t
)
1818 dump_expr (pp
, arg
, flags
| TFF_EXPR_IN_PARENS
);
1819 if (more_aggr_init_expr_args_p (&iter
))
1820 pp_separate_with_comma (pp
);
1823 pp_cxx_right_paren (pp
);
1826 /* Print out a list of initializers (subr of dump_expr). */
1829 dump_expr_list (cxx_pretty_printer
*pp
, tree l
, int flags
)
1833 dump_expr (pp
, TREE_VALUE (l
), flags
| TFF_EXPR_IN_PARENS
);
1836 pp_separate_with_comma (pp
);
1840 /* Print out a vector of initializers (subr of dump_expr). */
1843 dump_expr_init_vec (cxx_pretty_printer
*pp
, vec
<constructor_elt
, va_gc
> *v
,
1846 unsigned HOST_WIDE_INT idx
;
1849 FOR_EACH_CONSTRUCTOR_VALUE (v
, idx
, value
)
1851 dump_expr (pp
, value
, flags
| TFF_EXPR_IN_PARENS
);
1852 if (idx
!= v
->length () - 1)
1853 pp_separate_with_comma (pp
);
1858 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1859 function. Resolve it to a close relative -- in the sense of static
1860 type -- variant being overridden. That is close to what was written in
1861 the source code. Subroutine of dump_expr. */
1864 resolve_virtual_fun_from_obj_type_ref (tree ref
)
1866 tree obj_type
= TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref
));
1867 HOST_WIDE_INT index
= tree_to_uhwi (OBJ_TYPE_REF_TOKEN (ref
));
1868 tree fun
= BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type
)));
1871 fun
= TREE_CHAIN (fun
);
1872 index
-= (TARGET_VTABLE_USES_DESCRIPTORS
1873 ? TARGET_VTABLE_USES_DESCRIPTORS
: 1);
1879 /* Print out an expression E under control of FLAGS. */
1882 dump_expr (cxx_pretty_printer
*pp
, tree t
, int flags
)
1889 if (STATEMENT_CLASS_P (t
))
1891 pp_cxx_ws_string (pp
, M_("<statement>"));
1895 switch (TREE_CODE (t
))
1903 case NAMESPACE_DECL
:
1907 case IDENTIFIER_NODE
:
1908 dump_decl (pp
, t
, ((flags
& ~(TFF_DECL_SPECIFIERS
|TFF_RETURN_TYPE
1909 |TFF_TEMPLATE_HEADER
))
1910 | TFF_NO_FUNCTION_ARGUMENTS
));
1914 if (SSA_NAME_VAR (t
)
1915 && !DECL_ARTIFICIAL (SSA_NAME_VAR (t
)))
1916 dump_expr (pp
, SSA_NAME_VAR (t
), flags
);
1918 pp_cxx_ws_string (pp
, M_("<unknown>"));
1929 case USERDEF_LITERAL
:
1930 pp_cxx_userdef_literal (pp
, t
);
1934 /* While waiting for caret diagnostics, avoid printing
1935 __cxa_allocate_exception, __cxa_throw, and the like. */
1936 pp_cxx_ws_string (pp
, M_("<throw-expression>"));
1941 dump_type (pp
, PTRMEM_CST_CLASS (t
), flags
);
1942 pp_cxx_colon_colon (pp
);
1943 pp_cxx_tree_identifier (pp
, DECL_NAME (PTRMEM_CST_MEMBER (t
)));
1947 pp_cxx_left_paren (pp
);
1948 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
1949 pp_separate_with_comma (pp
);
1950 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
1951 pp_cxx_right_paren (pp
);
1955 pp_cxx_left_paren (pp
);
1956 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
1957 pp_string (pp
, " ? ");
1958 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
1959 pp_string (pp
, " : ");
1960 dump_expr (pp
, TREE_OPERAND (t
, 2), flags
| TFF_EXPR_IN_PARENS
);
1961 pp_cxx_right_paren (pp
);
1965 if (TREE_HAS_CONSTRUCTOR (t
))
1967 pp_cxx_ws_string (pp
, "new");
1968 pp_cxx_whitespace (pp
);
1969 dump_type (pp
, TREE_TYPE (TREE_TYPE (t
)), flags
);
1972 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
1975 case AGGR_INIT_EXPR
:
1977 tree fn
= NULL_TREE
;
1979 if (TREE_CODE (AGGR_INIT_EXPR_FN (t
)) == ADDR_EXPR
)
1980 fn
= TREE_OPERAND (AGGR_INIT_EXPR_FN (t
), 0);
1982 if (fn
&& TREE_CODE (fn
) == FUNCTION_DECL
)
1984 if (DECL_CONSTRUCTOR_P (fn
))
1985 dump_type (pp
, DECL_CONTEXT (fn
), flags
);
1987 dump_decl (pp
, fn
, 0);
1990 dump_expr (pp
, AGGR_INIT_EXPR_FN (t
), 0);
1992 dump_aggr_init_expr_args (pp
, t
, flags
, true);
1997 tree fn
= CALL_EXPR_FN (t
);
1998 bool skipfirst
= false;
2000 if (TREE_CODE (fn
) == ADDR_EXPR
)
2001 fn
= TREE_OPERAND (fn
, 0);
2003 /* Nobody is interested in seeing the guts of vcalls. */
2004 if (TREE_CODE (fn
) == OBJ_TYPE_REF
)
2005 fn
= resolve_virtual_fun_from_obj_type_ref (fn
);
2007 if (TREE_TYPE (fn
) != NULL_TREE
2008 && NEXT_CODE (fn
) == METHOD_TYPE
2009 && call_expr_nargs (t
))
2011 tree ob
= CALL_EXPR_ARG (t
, 0);
2012 if (TREE_CODE (ob
) == ADDR_EXPR
)
2014 dump_expr (pp
, TREE_OPERAND (ob
, 0),
2015 flags
| TFF_EXPR_IN_PARENS
);
2018 else if (TREE_CODE (ob
) != PARM_DECL
2019 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob
)), "this"))
2021 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2026 if (flag_sanitize
& SANITIZE_UNDEFINED
2027 && is_ubsan_builtin_p (fn
))
2029 pp_string (cxx_pp
, M_("<ubsan routine call>"));
2032 dump_expr (pp
, fn
, flags
| TFF_EXPR_IN_PARENS
);
2033 dump_call_expr_args (pp
, t
, flags
, skipfirst
);
2038 /* Note that this only works for G++ target exprs. If somebody
2039 builds a general TARGET_EXPR, there's no way to represent that
2040 it initializes anything other that the parameter slot for the
2041 default argument. Note we may have cleared out the first
2042 operand in expand_expr, so don't go killing ourselves. */
2043 if (TREE_OPERAND (t
, 1))
2044 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2047 case POINTER_PLUS_EXPR
:
2048 dump_binary_op (pp
, "+", t
, flags
);
2053 dump_binary_op (pp
, assignment_operator_name_info
[NOP_EXPR
].name
,
2060 case TRUNC_DIV_EXPR
:
2061 case TRUNC_MOD_EXPR
:
2069 case TRUTH_ANDIF_EXPR
:
2070 case TRUTH_ORIF_EXPR
:
2077 case EXACT_DIV_EXPR
:
2078 dump_binary_op (pp
, operator_name_info
[TREE_CODE (t
)].name
, t
, flags
);
2082 case FLOOR_DIV_EXPR
:
2083 case ROUND_DIV_EXPR
:
2085 dump_binary_op (pp
, "/", t
, flags
);
2089 case FLOOR_MOD_EXPR
:
2090 case ROUND_MOD_EXPR
:
2091 dump_binary_op (pp
, "%", t
, flags
);
2096 tree ob
= TREE_OPERAND (t
, 0);
2097 if (INDIRECT_REF_P (ob
))
2099 ob
= TREE_OPERAND (ob
, 0);
2100 if (TREE_CODE (ob
) != PARM_DECL
2102 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob
)), "this")))
2104 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2105 if (TREE_CODE (TREE_TYPE (ob
)) == REFERENCE_TYPE
)
2113 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2116 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
& ~TFF_EXPR_IN_PARENS
);
2121 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2122 pp_cxx_left_bracket (pp
);
2123 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2124 pp_cxx_right_bracket (pp
);
2127 case ARRAY_NOTATION_REF
:
2128 dump_expr (pp
, ARRAY_NOTATION_ARRAY (t
), flags
| TFF_EXPR_IN_PARENS
);
2129 pp_cxx_left_bracket (pp
);
2130 dump_expr (pp
, ARRAY_NOTATION_START (t
), flags
| TFF_EXPR_IN_PARENS
);
2132 dump_expr (pp
, ARRAY_NOTATION_LENGTH (t
), flags
| TFF_EXPR_IN_PARENS
);
2134 dump_expr (pp
, ARRAY_NOTATION_STRIDE (t
), flags
| TFF_EXPR_IN_PARENS
);
2135 pp_cxx_right_bracket (pp
);
2138 case UNARY_PLUS_EXPR
:
2139 dump_unary_op (pp
, "+", t
, flags
);
2143 if (TREE_CODE (TREE_OPERAND (t
, 0)) == FUNCTION_DECL
2144 || TREE_CODE (TREE_OPERAND (t
, 0)) == STRING_CST
2145 /* An ADDR_EXPR can have reference type. In that case, we
2146 shouldn't print the `&' doing so indicates to the user
2147 that the expression has pointer type. */
2149 && TREE_CODE (TREE_TYPE (t
)) == REFERENCE_TYPE
))
2150 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2151 else if (TREE_CODE (TREE_OPERAND (t
, 0)) == LABEL_DECL
)
2152 dump_unary_op (pp
, "&&", t
, flags
);
2154 dump_unary_op (pp
, "&", t
, flags
);
2158 if (TREE_HAS_CONSTRUCTOR (t
))
2160 t
= TREE_OPERAND (t
, 0);
2161 gcc_assert (TREE_CODE (t
) == CALL_EXPR
);
2162 dump_expr (pp
, CALL_EXPR_FN (t
), flags
| TFF_EXPR_IN_PARENS
);
2163 dump_call_expr_args (pp
, t
, flags
, true);
2167 if (TREE_OPERAND (t
,0) != NULL_TREE
2168 && TREE_TYPE (TREE_OPERAND (t
, 0))
2169 && NEXT_CODE (TREE_OPERAND (t
, 0)) == REFERENCE_TYPE
)
2170 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2172 dump_unary_op (pp
, "*", t
, flags
);
2177 if (TREE_CODE (TREE_OPERAND (t
, 0)) == ADDR_EXPR
2178 && integer_zerop (TREE_OPERAND (t
, 1)))
2179 dump_expr (pp
, TREE_OPERAND (TREE_OPERAND (t
, 0), 0), flags
);
2183 if (!integer_zerop (TREE_OPERAND (t
, 1)))
2185 pp_cxx_left_paren (pp
);
2186 if (!integer_onep (TYPE_SIZE_UNIT
2187 (TREE_TYPE (TREE_TYPE (TREE_OPERAND (t
, 0))))))
2189 pp_cxx_left_paren (pp
);
2190 dump_type (pp
, ptr_type_node
, flags
);
2191 pp_cxx_right_paren (pp
);
2194 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2195 if (!integer_zerop (TREE_OPERAND (t
, 1)))
2197 pp_cxx_ws_string (pp
, "+");
2198 dump_expr (pp
, fold_convert (ssizetype
, TREE_OPERAND (t
, 1)),
2200 pp_cxx_right_paren (pp
);
2207 case TRUTH_NOT_EXPR
:
2208 case PREDECREMENT_EXPR
:
2209 case PREINCREMENT_EXPR
:
2210 dump_unary_op (pp
, operator_name_info
[TREE_CODE (t
)].name
, t
, flags
);
2213 case POSTDECREMENT_EXPR
:
2214 case POSTINCREMENT_EXPR
:
2215 pp_cxx_left_paren (pp
);
2216 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2217 pp_cxx_ws_string (pp
, operator_name_info
[TREE_CODE (t
)].name
);
2218 pp_cxx_right_paren (pp
);
2221 case NON_LVALUE_EXPR
:
2222 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
2223 should be another level of INDIRECT_REF so that I don't have to do
2225 if (TREE_TYPE (t
) != NULL_TREE
&& NEXT_CODE (t
) == POINTER_TYPE
)
2227 tree next
= TREE_TYPE (TREE_TYPE (t
));
2229 while (TYPE_PTR_P (next
))
2230 next
= TREE_TYPE (next
);
2232 if (TREE_CODE (next
) == FUNCTION_TYPE
)
2234 if (flags
& TFF_EXPR_IN_PARENS
)
2235 pp_cxx_left_paren (pp
);
2237 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2238 if (flags
& TFF_EXPR_IN_PARENS
)
2239 pp_cxx_right_paren (pp
);
2242 /* Else fall through. */
2244 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2248 case IMPLICIT_CONV_EXPR
:
2249 case VIEW_CONVERT_EXPR
:
2251 tree op
= TREE_OPERAND (t
, 0);
2252 tree ttype
= TREE_TYPE (t
);
2253 tree optype
= TREE_TYPE (op
);
2255 if (TREE_CODE (ttype
) != TREE_CODE (optype
)
2256 && POINTER_TYPE_P (ttype
)
2257 && POINTER_TYPE_P (optype
)
2258 && same_type_p (TREE_TYPE (optype
),
2261 if (TREE_CODE (ttype
) == REFERENCE_TYPE
)
2262 dump_unary_op (pp
, "*", t
, flags
);
2264 dump_unary_op (pp
, "&", t
, flags
);
2266 else if (!same_type_p (TREE_TYPE (op
), TREE_TYPE (t
)))
2268 /* It is a cast, but we cannot tell whether it is a
2269 reinterpret or static cast. Use the C style notation. */
2270 if (flags
& TFF_EXPR_IN_PARENS
)
2271 pp_cxx_left_paren (pp
);
2272 pp_cxx_left_paren (pp
);
2273 dump_type (pp
, TREE_TYPE (t
), flags
);
2274 pp_cxx_right_paren (pp
);
2275 dump_expr (pp
, op
, flags
| TFF_EXPR_IN_PARENS
);
2276 if (flags
& TFF_EXPR_IN_PARENS
)
2277 pp_cxx_right_paren (pp
);
2280 dump_expr (pp
, op
, flags
);
2285 if (TREE_TYPE (t
) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t
)))
2287 tree idx
= build_ptrmemfunc_access_expr (t
, pfn_identifier
);
2289 if (integer_zerop (idx
))
2291 /* A NULL pointer-to-member constant. */
2292 pp_cxx_left_paren (pp
);
2293 pp_cxx_left_paren (pp
);
2294 dump_type (pp
, TREE_TYPE (t
), flags
);
2295 pp_cxx_right_paren (pp
);
2296 pp_character (pp
, '0');
2297 pp_cxx_right_paren (pp
);
2300 else if (tree_fits_shwi_p (idx
))
2303 unsigned HOST_WIDE_INT n
;
2305 t
= TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t
)));
2306 t
= TYPE_METHOD_BASETYPE (t
);
2307 virtuals
= BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t
)));
2309 n
= tree_to_shwi (idx
);
2311 /* Map vtable index back one, to allow for the null pointer to
2315 while (n
> 0 && virtuals
)
2318 virtuals
= TREE_CHAIN (virtuals
);
2322 dump_expr (pp
, BV_FN (virtuals
),
2323 flags
| TFF_EXPR_IN_PARENS
);
2328 if (TREE_TYPE (t
) && LAMBDA_TYPE_P (TREE_TYPE (t
)))
2329 pp_string (pp
, "<lambda closure object>");
2330 if (TREE_TYPE (t
) && EMPTY_CONSTRUCTOR_P (t
))
2332 dump_type (pp
, TREE_TYPE (t
), 0);
2333 pp_cxx_left_paren (pp
);
2334 pp_cxx_right_paren (pp
);
2338 if (!BRACE_ENCLOSED_INITIALIZER_P (t
))
2339 dump_type (pp
, TREE_TYPE (t
), 0);
2340 pp_cxx_left_brace (pp
);
2341 dump_expr_init_vec (pp
, CONSTRUCTOR_ELTS (t
), flags
);
2342 pp_cxx_right_brace (pp
);
2349 tree ob
= TREE_OPERAND (t
, 0);
2350 if (is_dummy_object (ob
))
2352 t
= TREE_OPERAND (t
, 1);
2353 if (TREE_CODE (t
) == FUNCTION_DECL
)
2355 dump_expr (pp
, t
, flags
| TFF_EXPR_IN_PARENS
);
2356 else if (BASELINK_P (t
))
2357 dump_expr (pp
, OVL_CURRENT (BASELINK_FUNCTIONS (t
)),
2358 flags
| TFF_EXPR_IN_PARENS
);
2360 dump_decl (pp
, t
, flags
);
2364 if (INDIRECT_REF_P (ob
))
2366 dump_expr (pp
, TREE_OPERAND (ob
, 0), flags
| TFF_EXPR_IN_PARENS
);
2372 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2376 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2381 case TEMPLATE_PARM_INDEX
:
2382 dump_decl (pp
, TEMPLATE_PARM_DECL (t
), flags
& ~TFF_DECL_SPECIFIERS
);
2386 if (TREE_OPERAND (t
, 0) == NULL_TREE
2387 || TREE_CHAIN (TREE_OPERAND (t
, 0)))
2389 dump_type (pp
, TREE_TYPE (t
), flags
);
2390 pp_cxx_left_paren (pp
);
2391 dump_expr_list (pp
, TREE_OPERAND (t
, 0), flags
);
2392 pp_cxx_right_paren (pp
);
2396 pp_cxx_left_paren (pp
);
2397 dump_type (pp
, TREE_TYPE (t
), flags
);
2398 pp_cxx_right_paren (pp
);
2399 pp_cxx_left_paren (pp
);
2400 dump_expr_list (pp
, TREE_OPERAND (t
, 0), flags
);
2401 pp_cxx_right_paren (pp
);
2405 case STATIC_CAST_EXPR
:
2406 pp_cxx_ws_string (pp
, "static_cast");
2408 case REINTERPRET_CAST_EXPR
:
2409 pp_cxx_ws_string (pp
, "reinterpret_cast");
2411 case CONST_CAST_EXPR
:
2412 pp_cxx_ws_string (pp
, "const_cast");
2414 case DYNAMIC_CAST_EXPR
:
2415 pp_cxx_ws_string (pp
, "dynamic_cast");
2417 pp_cxx_begin_template_argument_list (pp
);
2418 dump_type (pp
, TREE_TYPE (t
), flags
);
2419 pp_cxx_end_template_argument_list (pp
);
2420 pp_cxx_left_paren (pp
);
2421 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2422 pp_cxx_right_paren (pp
);
2426 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2432 if (TREE_CODE (t
) == SIZEOF_EXPR
)
2433 pp_cxx_ws_string (pp
, "sizeof");
2436 gcc_assert (TREE_CODE (t
) == ALIGNOF_EXPR
);
2437 pp_cxx_ws_string (pp
, "__alignof__");
2439 op
= TREE_OPERAND (t
, 0);
2440 if (PACK_EXPANSION_P (op
))
2442 pp_string (pp
, "...");
2443 op
= PACK_EXPANSION_PATTERN (op
);
2445 pp_cxx_whitespace (pp
);
2446 pp_cxx_left_paren (pp
);
2447 if (TREE_CODE (t
) == SIZEOF_EXPR
&& SIZEOF_EXPR_TYPE_P (t
))
2448 dump_type (pp
, TREE_TYPE (op
), flags
);
2449 else if (TYPE_P (TREE_OPERAND (t
, 0)))
2450 dump_type (pp
, op
, flags
);
2452 dump_expr (pp
, op
, flags
);
2453 pp_cxx_right_paren (pp
);
2456 case AT_ENCODE_EXPR
:
2457 pp_cxx_ws_string (pp
, "@encode");
2458 pp_cxx_whitespace (pp
);
2459 pp_cxx_left_paren (pp
);
2460 dump_type (pp
, TREE_OPERAND (t
, 0), flags
);
2461 pp_cxx_right_paren (pp
);
2465 pp_cxx_ws_string (pp
, "noexcept");
2466 pp_cxx_whitespace (pp
);
2467 pp_cxx_left_paren (pp
);
2468 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2469 pp_cxx_right_paren (pp
);
2474 pp_cxx_ws_string (pp
, operator_name_info
[TREE_CODE (t
)].name
);
2475 pp_cxx_whitespace (pp
);
2476 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2480 pp_string (pp
, M_("<unparsed>"));
2483 case TRY_CATCH_EXPR
:
2484 case WITH_CLEANUP_EXPR
:
2485 case CLEANUP_POINT_EXPR
:
2486 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2489 case PSEUDO_DTOR_EXPR
:
2490 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2492 if (TREE_OPERAND (t
, 1))
2494 dump_type (pp
, TREE_OPERAND (t
, 1), flags
);
2495 pp_cxx_colon_colon (pp
);
2497 pp_cxx_complement (pp
);
2498 dump_type (pp
, TREE_OPERAND (t
, 2), flags
);
2501 case TEMPLATE_ID_EXPR
:
2502 dump_decl (pp
, t
, flags
);
2508 case STATEMENT_LIST
:
2509 /* We don't yet have a way of dumping statements in a
2510 human-readable format. */
2511 pp_string (pp
, "({...})");
2515 pp_string (pp
, "while (1) { ");
2516 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2517 pp_cxx_right_brace (pp
);
2521 pp_string (pp
, "if (");
2522 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2523 pp_string (pp
, ") break; ");
2527 dump_expr (pp
, BASELINK_FUNCTIONS (t
), flags
& ~TFF_EXPR_IN_PARENS
);
2530 case EMPTY_CLASS_EXPR
:
2531 dump_type (pp
, TREE_TYPE (t
), flags
);
2532 pp_cxx_left_paren (pp
);
2533 pp_cxx_right_paren (pp
);
2536 case NON_DEPENDENT_EXPR
:
2537 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2540 case ARGUMENT_PACK_SELECT
:
2541 dump_template_argument (pp
, ARGUMENT_PACK_SELECT_FROM_PACK (t
), flags
);
2553 pp_type_specifier_seq (pp
, t
);
2557 /* We get here when we want to print a dependent type as an
2558 id-expression, without any disambiguator decoration. */
2559 pp
->id_expression (t
);
2562 case TEMPLATE_TYPE_PARM
:
2563 case TEMPLATE_TEMPLATE_PARM
:
2564 case BOUND_TEMPLATE_TEMPLATE_PARM
:
2565 dump_type (pp
, t
, flags
);
2569 pp_cxx_trait_expression (pp
, t
);
2573 pp_cxx_va_arg_expression (pp
, t
);
2577 pp_cxx_offsetof_expression (pp
, t
);
2581 dump_decl (pp
, t
, flags
);
2584 case EXPR_PACK_EXPANSION
:
2591 case VEC_DELETE_EXPR
:
2597 case UNORDERED_EXPR
:
2607 case FIX_TRUNC_EXPR
:
2612 case TRUTH_AND_EXPR
:
2614 case TRUTH_XOR_EXPR
:
2615 if (flags
& TFF_EXPR_IN_PARENS
)
2616 pp_cxx_left_paren (pp
);
2618 if (flags
& TFF_EXPR_IN_PARENS
)
2619 pp_cxx_right_paren (pp
);
2623 dump_expr (pp
, resolve_virtual_fun_from_obj_type_ref (t
), flags
);
2627 pp_string (pp
, M_("<lambda>"));
2631 pp_cxx_left_paren (pp
);
2632 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2633 pp_cxx_right_paren (pp
);
2636 /* This list is incomplete, but should suffice for now.
2637 It is very important that `sorry' does not call
2638 `report_error_function'. That could cause an infinite loop. */
2640 pp_unsupported_tree (pp
, t
);
2641 /* fall through to ERROR_MARK... */
2643 pp_string (pp
, M_("<expression error>"));
2649 dump_binary_op (cxx_pretty_printer
*pp
, const char *opstring
, tree t
,
2652 pp_cxx_left_paren (pp
);
2653 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2654 pp_cxx_whitespace (pp
);
2656 pp_cxx_ws_string (pp
, opstring
);
2658 pp_string (pp
, M_("<unknown operator>"));
2659 pp_cxx_whitespace (pp
);
2660 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2661 pp_cxx_right_paren (pp
);
2665 dump_unary_op (cxx_pretty_printer
*pp
, const char *opstring
, tree t
, int flags
)
2667 if (flags
& TFF_EXPR_IN_PARENS
)
2668 pp_cxx_left_paren (pp
);
2669 pp_cxx_ws_string (pp
, opstring
);
2670 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2671 if (flags
& TFF_EXPR_IN_PARENS
)
2672 pp_cxx_right_paren (pp
);
2676 reinit_cxx_pp (void)
2678 pp_clear_output_area (cxx_pp
);
2679 cxx_pp
->padding
= pp_none
;
2680 pp_indentation (cxx_pp
) = 0;
2681 pp_needs_newline (cxx_pp
) = false;
2682 cxx_pp
->enclosing_scope
= current_function_decl
;
2685 /* Same as pp_formatted_text, except the return string is a separate
2686 copy and has a GGC storage duration, e.g. an indefinite lifetime. */
2689 pp_ggc_formatted_text (pretty_printer
*pp
)
2691 return ggc_strdup (pp_formatted_text (pp
));
2694 /* Exported interface to stringifying types, exprs and decls under TFF_*
2698 type_as_string (tree typ
, int flags
)
2701 pp_translate_identifiers (cxx_pp
) = false;
2702 dump_type (cxx_pp
, typ
, flags
);
2703 return pp_ggc_formatted_text (cxx_pp
);
2707 type_as_string_translate (tree typ
, int flags
)
2710 dump_type (cxx_pp
, typ
, flags
);
2711 return pp_ggc_formatted_text (cxx_pp
);
2715 expr_as_string (tree decl
, int flags
)
2718 pp_translate_identifiers (cxx_pp
) = false;
2719 dump_expr (cxx_pp
, decl
, flags
);
2720 return pp_ggc_formatted_text (cxx_pp
);
2723 /* Wrap decl_as_string with options appropriate for dwarf. */
2726 decl_as_dwarf_string (tree decl
, int flags
)
2729 /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
2730 here will be adequate to get the desired behaviour. */
2731 cxx_pp
->flags
|= pp_c_flag_gnu_v3
;
2732 name
= decl_as_string (decl
, flags
);
2733 /* Subsequent calls to the pretty printer shouldn't use this style. */
2734 cxx_pp
->flags
&= ~pp_c_flag_gnu_v3
;
2739 decl_as_string (tree decl
, int flags
)
2742 pp_translate_identifiers (cxx_pp
) = false;
2743 dump_decl (cxx_pp
, decl
, flags
);
2744 return pp_ggc_formatted_text (cxx_pp
);
2748 decl_as_string_translate (tree decl
, int flags
)
2751 dump_decl (cxx_pp
, decl
, flags
);
2752 return pp_ggc_formatted_text (cxx_pp
);
2755 /* Wrap lang_decl_name with options appropriate for dwarf. */
2758 lang_decl_dwarf_name (tree decl
, int v
, bool translate
)
2761 /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
2762 here will be adequate to get the desired behaviour. */
2763 cxx_pp
->flags
|= pp_c_flag_gnu_v3
;
2764 name
= lang_decl_name (decl
, v
, translate
);
2765 /* Subsequent calls to the pretty printer shouldn't use this style. */
2766 cxx_pp
->flags
&= ~pp_c_flag_gnu_v3
;
2770 /* Generate the three forms of printable names for cxx_printable_name. */
2773 lang_decl_name (tree decl
, int v
, bool translate
)
2777 ? decl_as_string_translate (decl
, TFF_DECL_SPECIFIERS
)
2778 : decl_as_string (decl
, TFF_DECL_SPECIFIERS
));
2781 pp_translate_identifiers (cxx_pp
) = translate
;
2783 && (DECL_CLASS_SCOPE_P (decl
)
2784 || (DECL_NAMESPACE_SCOPE_P (decl
)
2785 && CP_DECL_CONTEXT (decl
) != global_namespace
)))
2787 dump_type (cxx_pp
, CP_DECL_CONTEXT (decl
), TFF_PLAIN_IDENTIFIER
);
2788 pp_cxx_colon_colon (cxx_pp
);
2791 if (TREE_CODE (decl
) == FUNCTION_DECL
)
2792 dump_function_name (cxx_pp
, decl
, TFF_PLAIN_IDENTIFIER
);
2793 else if ((DECL_NAME (decl
) == NULL_TREE
)
2794 && TREE_CODE (decl
) == NAMESPACE_DECL
)
2795 dump_decl (cxx_pp
, decl
, TFF_PLAIN_IDENTIFIER
| TFF_UNQUALIFIED_NAME
);
2797 dump_decl (cxx_pp
, DECL_NAME (decl
), TFF_PLAIN_IDENTIFIER
);
2799 return pp_ggc_formatted_text (cxx_pp
);
2802 /* Return the location of a tree passed to %+ formats. */
2805 location_of (tree t
)
2809 t
= TYPE_MAIN_DECL (t
);
2811 return input_location
;
2813 else if (TREE_CODE (t
) == OVERLOAD
)
2814 t
= OVL_FUNCTION (t
);
2817 return DECL_SOURCE_LOCATION (t
);
2818 return EXPR_LOC_OR_LOC (t
, input_location
);
2821 /* Now the interfaces from error et al to dump_type et al. Each takes an
2822 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2826 decl_to_string (tree decl
, int verbose
)
2830 if (TREE_CODE (decl
) == TYPE_DECL
|| TREE_CODE (decl
) == RECORD_TYPE
2831 || TREE_CODE (decl
) == UNION_TYPE
|| TREE_CODE (decl
) == ENUMERAL_TYPE
)
2832 flags
= TFF_CLASS_KEY_OR_ENUM
;
2834 flags
|= TFF_DECL_SPECIFIERS
;
2835 else if (TREE_CODE (decl
) == FUNCTION_DECL
)
2836 flags
|= TFF_DECL_SPECIFIERS
| TFF_RETURN_TYPE
;
2837 flags
|= TFF_TEMPLATE_HEADER
;
2840 dump_decl (cxx_pp
, decl
, flags
);
2841 return pp_ggc_formatted_text (cxx_pp
);
2845 expr_to_string (tree decl
)
2848 dump_expr (cxx_pp
, decl
, 0);
2849 return pp_ggc_formatted_text (cxx_pp
);
2853 fndecl_to_string (tree fndecl
, int verbose
)
2857 flags
= TFF_EXCEPTION_SPECIFICATION
| TFF_DECL_SPECIFIERS
2858 | TFF_TEMPLATE_HEADER
;
2860 flags
|= TFF_FUNCTION_DEFAULT_ARGUMENTS
;
2862 dump_decl (cxx_pp
, fndecl
, flags
);
2863 return pp_ggc_formatted_text (cxx_pp
);
2868 code_to_string (enum tree_code c
)
2870 return get_tree_code_name (c
);
2874 language_to_string (enum languages c
)
2881 case lang_cplusplus
:
2893 /* Return the proper printed version of a parameter to a C++ function. */
2896 parm_to_string (int p
)
2900 pp_string (cxx_pp
, "'this'");
2902 pp_decimal_int (cxx_pp
, p
+ 1);
2903 return pp_ggc_formatted_text (cxx_pp
);
2907 op_to_string (enum tree_code p
)
2909 tree id
= operator_name_info
[p
].identifier
;
2910 return id
? IDENTIFIER_POINTER (id
) : M_("<unknown>");
2914 type_to_string (tree typ
, int verbose
)
2918 flags
|= TFF_CLASS_KEY_OR_ENUM
;
2919 flags
|= TFF_TEMPLATE_HEADER
;
2922 dump_type (cxx_pp
, typ
, flags
);
2923 /* If we're printing a type that involves typedefs, also print the
2924 stripped version. But sometimes the stripped version looks
2925 exactly the same, so we don't want it after all. To avoid printing
2926 it in that case, we play ugly obstack games. */
2927 if (typ
&& TYPE_P (typ
) && typ
!= TYPE_CANONICAL (typ
)
2928 && !uses_template_parms (typ
))
2930 int aka_start
, aka_len
; char *p
;
2931 struct obstack
*ob
= pp_buffer (cxx_pp
)->obstack
;
2932 /* Remember the end of the initial dump. */
2933 int len
= obstack_object_size (ob
);
2934 tree aka
= strip_typedefs (typ
);
2935 pp_string (cxx_pp
, " {aka");
2936 pp_cxx_whitespace (cxx_pp
);
2937 /* And remember the start of the aka dump. */
2938 aka_start
= obstack_object_size (ob
);
2939 dump_type (cxx_pp
, aka
, flags
);
2940 aka_len
= obstack_object_size (ob
) - aka_start
;
2941 pp_right_brace (cxx_pp
);
2942 p
= (char*)obstack_base (ob
);
2943 /* If they are identical, cut off the aka with a NUL. */
2944 if (len
== aka_len
&& memcmp (p
, p
+aka_start
, len
) == 0)
2947 return pp_ggc_formatted_text (cxx_pp
);
2951 assop_to_string (enum tree_code p
)
2953 tree id
= assignment_operator_name_info
[(int) p
].identifier
;
2954 return id
? IDENTIFIER_POINTER (id
) : M_("{unknown}");
2958 args_to_string (tree p
, int verbose
)
2962 flags
|= TFF_CLASS_KEY_OR_ENUM
;
2967 if (TYPE_P (TREE_VALUE (p
)))
2968 return type_as_string_translate (p
, flags
);
2971 for (; p
; p
= TREE_CHAIN (p
))
2973 if (TREE_VALUE (p
) == null_node
)
2974 pp_cxx_ws_string (cxx_pp
, "NULL");
2976 dump_type (cxx_pp
, error_type (TREE_VALUE (p
)), flags
);
2978 pp_separate_with_comma (cxx_pp
);
2980 return pp_ggc_formatted_text (cxx_pp
);
2983 /* Pretty-print a deduction substitution (from deduction_tsubst_fntype). P
2984 is a TREE_LIST with purpose the TEMPLATE_DECL, value the template
2988 subst_to_string (tree p
)
2990 tree decl
= TREE_PURPOSE (p
);
2991 tree targs
= TREE_VALUE (p
);
2992 tree tparms
= DECL_TEMPLATE_PARMS (decl
);
2993 int flags
= (TFF_DECL_SPECIFIERS
|TFF_TEMPLATE_HEADER
2994 |TFF_NO_TEMPLATE_BINDINGS
);
3000 dump_template_decl (cxx_pp
, TREE_PURPOSE (p
), flags
);
3001 dump_substitution (cxx_pp
, NULL
, tparms
, targs
, /*flags=*/0);
3002 return pp_ggc_formatted_text (cxx_pp
);
3006 cv_to_string (tree p
, int v
)
3009 cxx_pp
->padding
= v
? pp_before
: pp_none
;
3010 pp_cxx_cv_qualifier_seq (cxx_pp
, p
);
3011 return pp_ggc_formatted_text (cxx_pp
);
3015 eh_spec_to_string (tree p
, int /*v*/)
3019 dump_exception_spec (cxx_pp
, p
, flags
);
3020 return pp_ggc_formatted_text (cxx_pp
);
3023 /* Langhook for print_error_function. */
3025 cxx_print_error_function (diagnostic_context
*context
, const char *file
,
3026 diagnostic_info
*diagnostic
)
3028 lhd_print_error_function (context
, file
, diagnostic
);
3029 pp_set_prefix (context
->printer
, file
);
3030 maybe_print_instantiation_context (context
);
3034 cp_diagnostic_starter (diagnostic_context
*context
,
3035 diagnostic_info
*diagnostic
)
3037 diagnostic_report_current_module (context
, diagnostic
->location
);
3038 cp_print_error_function (context
, diagnostic
);
3039 maybe_print_instantiation_context (context
);
3040 maybe_print_constexpr_context (context
);
3041 pp_set_prefix (context
->printer
, diagnostic_build_prefix (context
,
3046 cp_diagnostic_finalizer (diagnostic_context
*context
,
3047 diagnostic_info
*diagnostic
)
3049 virt_loc_aware_diagnostic_finalizer (context
, diagnostic
);
3050 pp_destroy_prefix (context
->printer
);
3053 /* Print current function onto BUFFER, in the process of reporting
3054 a diagnostic message. Called from cp_diagnostic_starter. */
3056 cp_print_error_function (diagnostic_context
*context
,
3057 diagnostic_info
*diagnostic
)
3059 /* If we are in an instantiation context, current_function_decl is likely
3060 to be wrong, so just rely on print_instantiation_full_context. */
3061 if (current_instantiation ())
3063 if (diagnostic_last_function_changed (context
, diagnostic
))
3065 const char *old_prefix
= context
->printer
->prefix
;
3066 const char *file
= LOCATION_FILE (diagnostic
->location
);
3067 tree abstract_origin
= diagnostic_abstract_origin (diagnostic
);
3068 char *new_prefix
= (file
&& abstract_origin
== NULL
)
3069 ? file_name_as_prefix (context
, file
) : NULL
;
3071 pp_set_prefix (context
->printer
, new_prefix
);
3073 if (current_function_decl
== NULL
)
3074 pp_string (context
->printer
, _("At global scope:"));
3079 if (abstract_origin
)
3081 ao
= BLOCK_ABSTRACT_ORIGIN (abstract_origin
);
3082 while (TREE_CODE (ao
) == BLOCK
3083 && BLOCK_ABSTRACT_ORIGIN (ao
)
3084 && BLOCK_ABSTRACT_ORIGIN (ao
) != ao
)
3085 ao
= BLOCK_ABSTRACT_ORIGIN (ao
);
3086 gcc_assert (TREE_CODE (ao
) == FUNCTION_DECL
);
3090 fndecl
= current_function_decl
;
3092 pp_printf (context
->printer
, function_category (fndecl
),
3093 cxx_printable_name_translate (fndecl
, 2));
3095 while (abstract_origin
)
3098 tree block
= abstract_origin
;
3100 locus
= &BLOCK_SOURCE_LOCATION (block
);
3102 block
= BLOCK_SUPERCONTEXT (block
);
3103 while (block
&& TREE_CODE (block
) == BLOCK
3104 && BLOCK_ABSTRACT_ORIGIN (block
))
3106 ao
= BLOCK_ABSTRACT_ORIGIN (block
);
3108 while (TREE_CODE (ao
) == BLOCK
3109 && BLOCK_ABSTRACT_ORIGIN (ao
)
3110 && BLOCK_ABSTRACT_ORIGIN (ao
) != ao
)
3111 ao
= BLOCK_ABSTRACT_ORIGIN (ao
);
3113 if (TREE_CODE (ao
) == FUNCTION_DECL
)
3118 else if (TREE_CODE (ao
) != BLOCK
)
3121 block
= BLOCK_SUPERCONTEXT (block
);
3124 abstract_origin
= block
;
3127 while (block
&& TREE_CODE (block
) == BLOCK
)
3128 block
= BLOCK_SUPERCONTEXT (block
);
3130 if (block
&& TREE_CODE (block
) == FUNCTION_DECL
)
3132 abstract_origin
= NULL
;
3136 expanded_location s
= expand_location (*locus
);
3137 pp_character (context
->printer
, ',');
3138 pp_newline (context
->printer
);
3141 if (context
->show_column
&& s
.column
!= 0)
3142 pp_printf (context
->printer
,
3143 _(" inlined from %qs at %r%s:%d:%d%R"),
3144 cxx_printable_name_translate (fndecl
, 2),
3145 "locus", s
.file
, s
.line
, s
.column
);
3147 pp_printf (context
->printer
,
3148 _(" inlined from %qs at %r%s:%d%R"),
3149 cxx_printable_name_translate (fndecl
, 2),
3150 "locus", s
.file
, s
.line
);
3154 pp_printf (context
->printer
, _(" inlined from %qs"),
3155 cxx_printable_name_translate (fndecl
, 2));
3158 pp_character (context
->printer
, ':');
3160 pp_newline (context
->printer
);
3162 diagnostic_set_last_function (context
, diagnostic
);
3163 pp_destroy_prefix (context
->printer
);
3164 context
->printer
->prefix
= old_prefix
;
3168 /* Returns a description of FUNCTION using standard terminology. The
3169 result is a format string of the form "In CATEGORY %qs". */
3171 function_category (tree fn
)
3173 /* We can get called from the middle-end for diagnostics of function
3174 clones. Make sure we have language specific information before
3175 dereferencing it. */
3176 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn
))
3177 && DECL_FUNCTION_MEMBER_P (fn
))
3179 if (DECL_STATIC_FUNCTION_P (fn
))
3180 return _("In static member function %qs");
3181 else if (DECL_COPY_CONSTRUCTOR_P (fn
))
3182 return _("In copy constructor %qs");
3183 else if (DECL_CONSTRUCTOR_P (fn
))
3184 return _("In constructor %qs");
3185 else if (DECL_DESTRUCTOR_P (fn
))
3186 return _("In destructor %qs");
3187 else if (LAMBDA_FUNCTION_P (fn
))
3188 return _("In lambda function");
3190 return _("In member function %qs");
3193 return _("In function %qs");
3196 /* Report the full context of a current template instantiation,
3199 print_instantiation_full_context (diagnostic_context
*context
)
3201 struct tinst_level
*p
= current_instantiation ();
3202 location_t location
= input_location
;
3206 pp_verbatim (context
->printer
,
3207 TREE_CODE (p
->decl
) == TREE_LIST
3208 ? _("%s: In substitution of %qS:\n")
3209 : _("%s: In instantiation of %q#D:\n"),
3210 LOCATION_FILE (location
),
3213 location
= p
->locus
;
3217 print_instantiation_partial_context (context
, p
, location
);
3220 /* Helper function of print_instantiation_partial_context() that
3221 prints a single line of instantiation context. */
3224 print_instantiation_partial_context_line (diagnostic_context
*context
,
3225 const struct tinst_level
*t
,
3226 location_t loc
, bool recursive_p
)
3228 if (loc
== UNKNOWN_LOCATION
)
3231 expanded_location xloc
= expand_location (loc
);
3233 if (context
->show_column
)
3234 pp_verbatim (context
->printer
, _("%r%s:%d:%d:%R "),
3235 "locus", xloc
.file
, xloc
.line
, xloc
.column
);
3237 pp_verbatim (context
->printer
, _("%r%s:%d:%R "),
3238 "locus", xloc
.file
, xloc
.line
);
3242 if (TREE_CODE (t
->decl
) == TREE_LIST
)
3243 pp_verbatim (context
->printer
,
3245 ? _("recursively required by substitution of %qS\n")
3246 : _("required by substitution of %qS\n"),
3249 pp_verbatim (context
->printer
,
3251 ? _("recursively required from %q#D\n")
3252 : _("required from %q#D\n"),
3257 pp_verbatim (context
->printer
,
3259 ? _("recursively required from here")
3260 : _("required from here"));
3264 /* Same as print_instantiation_full_context but less verbose. */
3267 print_instantiation_partial_context (diagnostic_context
*context
,
3268 struct tinst_level
*t0
, location_t loc
)
3270 struct tinst_level
*t
;
3273 location_t prev_loc
= loc
;
3275 for (t
= t0
; t
!= NULL
; t
= t
->next
)
3276 if (prev_loc
!= t
->locus
)
3278 prev_loc
= t
->locus
;
3284 if (template_backtrace_limit
3285 && n_total
> template_backtrace_limit
)
3287 int skip
= n_total
- template_backtrace_limit
;
3288 int head
= template_backtrace_limit
/ 2;
3290 /* Avoid skipping just 1. If so, skip 2. */
3294 head
= (template_backtrace_limit
- 1) / 2;
3297 for (n
= 0; n
< head
; n
++)
3299 gcc_assert (t
!= NULL
);
3300 if (loc
!= t
->locus
)
3301 print_instantiation_partial_context_line (context
, t
, loc
,
3302 /*recursive_p=*/false);
3306 if (t
!= NULL
&& skip
> 0)
3308 expanded_location xloc
;
3309 xloc
= expand_location (loc
);
3310 if (context
->show_column
)
3311 pp_verbatim (context
->printer
,
3312 _("%r%s:%d:%d:%R [ skipping %d instantiation "
3313 "contexts, use -ftemplate-backtrace-limit=0 to "
3315 "locus", xloc
.file
, xloc
.line
, xloc
.column
, skip
);
3317 pp_verbatim (context
->printer
,
3318 _("%r%s:%d:%R [ skipping %d instantiation "
3319 "contexts, use -ftemplate-backtrace-limit=0 to "
3321 "locus", xloc
.file
, xloc
.line
, skip
);
3326 } while (t
!= NULL
&& --skip
> 0);
3332 while (t
->next
!= NULL
&& t
->locus
== t
->next
->locus
)
3337 print_instantiation_partial_context_line (context
, t
, loc
,
3342 print_instantiation_partial_context_line (context
, NULL
, loc
,
3343 /*recursive_p=*/false);
3344 pp_newline (context
->printer
);
3347 /* Called from cp_thing to print the template context for an error. */
3349 maybe_print_instantiation_context (diagnostic_context
*context
)
3351 if (!problematic_instantiation_changed () || current_instantiation () == 0)
3354 record_last_problematic_instantiation ();
3355 print_instantiation_full_context (context
);
3358 /* Report the bare minimum context of a template instantiation. */
3360 print_instantiation_context (void)
3362 print_instantiation_partial_context
3363 (global_dc
, current_instantiation (), input_location
);
3364 pp_newline (global_dc
->printer
);
3365 diagnostic_flush_buffer (global_dc
);
3368 /* Report what constexpr call(s) we're trying to expand, if any. */
3371 maybe_print_constexpr_context (diagnostic_context
*context
)
3373 vec
<tree
> call_stack
= cx_error_context ();
3377 FOR_EACH_VEC_ELT (call_stack
, ix
, t
)
3379 expanded_location xloc
= expand_location (EXPR_LOCATION (t
));
3380 const char *s
= expr_as_string (t
, 0);
3381 if (context
->show_column
)
3382 pp_verbatim (context
->printer
,
3383 _("%r%s:%d:%d:%R in constexpr expansion of %qs"),
3384 "locus", xloc
.file
, xloc
.line
, xloc
.column
, s
);
3386 pp_verbatim (context
->printer
,
3387 _("%r%s:%d:%R in constexpr expansion of %qs"),
3388 "locus", xloc
.file
, xloc
.line
, s
);
3389 pp_newline (context
->printer
);
3393 /* Called from output_format -- during diagnostic message processing --
3394 to handle C++ specific format specifier with the following meanings:
3395 %A function argument-list.
3399 %F function declaration.
3400 %L language as used in extern "lang".
3402 %P function parameter whose position is indicated by an integer.
3403 %Q assignment operator.
3404 %S substitution (template + args)
3407 %X exception-specification. */
3409 cp_printer (pretty_printer
*pp
, text_info
*text
, const char *spec
,
3410 int precision
, bool wide
, bool set_locus
, bool verbose
)
3414 #define next_tree (t = va_arg (*text->args_ptr, tree))
3415 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
3416 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
3417 #define next_int va_arg (*text->args_ptr, int)
3419 if (precision
!= 0 || wide
)
3422 if (text
->locus
== NULL
)
3427 case 'A': result
= args_to_string (next_tree
, verbose
); break;
3428 case 'C': result
= code_to_string (next_tcode
); break;
3431 tree temp
= next_tree
;
3433 && DECL_HAS_DEBUG_EXPR_P (temp
))
3435 temp
= DECL_DEBUG_EXPR (temp
);
3438 result
= expr_to_string (temp
);
3442 result
= decl_to_string (temp
, verbose
);
3445 case 'E': result
= expr_to_string (next_tree
); break;
3446 case 'F': result
= fndecl_to_string (next_tree
, verbose
); break;
3447 case 'L': result
= language_to_string (next_lang
); break;
3448 case 'O': result
= op_to_string (next_tcode
); break;
3449 case 'P': result
= parm_to_string (next_int
); break;
3450 case 'Q': result
= assop_to_string (next_tcode
); break;
3451 case 'S': result
= subst_to_string (next_tree
); break;
3452 case 'T': result
= type_to_string (next_tree
, verbose
); break;
3453 case 'V': result
= cv_to_string (next_tree
, verbose
); break;
3454 case 'X': result
= eh_spec_to_string (next_tree
, verbose
); break;
3457 percent_K_format (text
);
3464 pp_string (pp
, result
);
3465 if (set_locus
&& t
!= NULL
)
3466 *text
->locus
= location_of (t
);
3474 /* Warn about the use of C++0x features when appropriate. */
3476 maybe_warn_cpp0x (cpp0x_warn_str str
)
3478 if ((cxx_dialect
== cxx98
) && !in_system_header_at (input_location
))
3479 /* We really want to suppress this warning in system headers,
3480 because libstdc++ uses variadic templates even when we aren't
3484 case CPP0X_INITIALIZER_LISTS
:
3485 pedwarn (input_location
, 0,
3486 "extended initializer lists "
3487 "only available with -std=c++11 or -std=gnu++11");
3489 case CPP0X_EXPLICIT_CONVERSION
:
3490 pedwarn (input_location
, 0,
3491 "explicit conversion operators "
3492 "only available with -std=c++11 or -std=gnu++11");
3494 case CPP0X_VARIADIC_TEMPLATES
:
3495 pedwarn (input_location
, 0,
3496 "variadic templates "
3497 "only available with -std=c++11 or -std=gnu++11");
3499 case CPP0X_LAMBDA_EXPR
:
3500 pedwarn (input_location
, 0,
3501 "lambda expressions "
3502 "only available with -std=c++11 or -std=gnu++11");
3505 pedwarn (input_location
, 0,
3506 "C++11 auto only available with -std=c++11 or -std=gnu++11");
3508 case CPP0X_SCOPED_ENUMS
:
3509 pedwarn (input_location
, 0,
3510 "scoped enums only available with -std=c++11 or -std=gnu++11");
3512 case CPP0X_DEFAULTED_DELETED
:
3513 pedwarn (input_location
, 0,
3514 "defaulted and deleted functions "
3515 "only available with -std=c++11 or -std=gnu++11");
3517 case CPP0X_INLINE_NAMESPACES
:
3518 pedwarn (input_location
, OPT_Wpedantic
,
3519 "inline namespaces "
3520 "only available with -std=c++11 or -std=gnu++11");
3522 case CPP0X_OVERRIDE_CONTROLS
:
3523 pedwarn (input_location
, 0,
3524 "override controls (override/final) "
3525 "only available with -std=c++11 or -std=gnu++11");
3528 pedwarn (input_location
, 0,
3529 "non-static data member initializers "
3530 "only available with -std=c++11 or -std=gnu++11");
3532 case CPP0X_USER_DEFINED_LITERALS
:
3533 pedwarn (input_location
, 0,
3534 "user-defined literals "
3535 "only available with -std=c++11 or -std=gnu++11");
3537 case CPP0X_DELEGATING_CTORS
:
3538 pedwarn (input_location
, 0,
3539 "delegating constructors "
3540 "only available with -std=c++11 or -std=gnu++11");
3542 case CPP0X_INHERITING_CTORS
:
3543 pedwarn (input_location
, 0,
3544 "inheriting constructors "
3545 "only available with -std=c++11 or -std=gnu++11");
3547 case CPP0X_ATTRIBUTES
:
3548 pedwarn (input_location
, 0,
3550 "only available with -std=c++11 or -std=gnu++11");
3552 case CPP0X_REF_QUALIFIER
:
3553 pedwarn (input_location
, 0,
3555 "only available with -std=c++11 or -std=gnu++11");
3562 /* Warn about the use of variadic templates when appropriate. */
3564 maybe_warn_variadic_templates (void)
3566 maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES
);
3570 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
3571 option OPT with text GMSGID. Use this function to report
3572 diagnostics for constructs that are invalid C++98, but valid
3575 pedwarn_cxx98 (location_t location
, int opt
, const char *gmsgid
, ...)
3577 diagnostic_info diagnostic
;
3581 va_start (ap
, gmsgid
);
3582 diagnostic_set_info (&diagnostic
, gmsgid
, &ap
, location
,
3583 (cxx_dialect
== cxx98
) ? DK_PEDWARN
: DK_WARNING
);
3584 diagnostic
.option_index
= opt
;
3585 ret
= report_diagnostic (&diagnostic
);
3590 /* Issue a diagnostic that NAME cannot be found in SCOPE. DECL is what
3591 we found when we tried to do the lookup. LOCATION is the location of
3592 the NAME identifier. */
3595 qualified_name_lookup_error (tree scope
, tree name
,
3596 tree decl
, location_t location
)
3598 if (scope
== error_mark_node
)
3599 ; /* We already complained. */
3600 else if (TYPE_P (scope
))
3602 if (!COMPLETE_TYPE_P (scope
))
3603 error_at (location
, "incomplete type %qT used in nested name specifier",
3605 else if (TREE_CODE (decl
) == TREE_LIST
)
3607 error_at (location
, "reference to %<%T::%D%> is ambiguous",
3609 print_candidates (decl
);
3612 error_at (location
, "%qD is not a member of %qT", name
, scope
);
3614 else if (scope
!= global_namespace
)
3616 error_at (location
, "%qD is not a member of %qD", name
, scope
);
3617 suggest_alternatives_for (location
, name
);
3621 error_at (location
, "%<::%D%> has not been declared", name
);
3622 suggest_alternatives_for (location
, name
);