1 /* Call-backs for C++ error reporting.
2 This code is non-reentrant.
3 Copyright (C) 1993-2016 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"
24 #include "stringpool.h"
25 #include "tree-diagnostic.h"
26 #include "langhooks-def.h"
28 #include "cxx-pretty-print.h"
29 #include "tree-pretty-print.h"
30 #include "c-family/c-objc.h"
32 #include "internal-fn.h"
34 #define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
35 #define pp_separate_with_semicolon(PP) pp_cxx_separate_with (PP, ';')
37 /* cxx_pp is a C++ front-end-specific pretty printer: this is where we
38 dump C++ ASTs as strings. It is mostly used only by the various
39 tree -> string functions that are occasionally called from the
40 debugger or by the front-end for things like
41 __PRETTY_FUNCTION__. */
42 static cxx_pretty_printer actual_pretty_printer
;
43 static cxx_pretty_printer
* const cxx_pp
= &actual_pretty_printer
;
45 /* Translate if being used for diagnostics, but not for dump files or
47 #define M_(msgid) (pp_translate_identifiers (cxx_pp) ? _(msgid) : (msgid))
49 # define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
51 static const char *args_to_string (tree
, int);
52 static const char *assop_to_string (enum tree_code
);
53 static const char *code_to_string (enum tree_code
);
54 static const char *cv_to_string (tree
, int);
55 static const char *decl_to_string (tree
, int);
56 static const char *expr_to_string (tree
);
57 static const char *fndecl_to_string (tree
, int);
58 static const char *op_to_string (enum tree_code
);
59 static const char *parm_to_string (int);
60 static const char *type_to_string (tree
, int);
62 static void dump_alias_template_specialization (cxx_pretty_printer
*, tree
, int);
63 static void dump_type (cxx_pretty_printer
*, tree
, int);
64 static void dump_typename (cxx_pretty_printer
*, tree
, int);
65 static void dump_simple_decl (cxx_pretty_printer
*, tree
, tree
, int);
66 static void dump_decl (cxx_pretty_printer
*, tree
, int);
67 static void dump_template_decl (cxx_pretty_printer
*, tree
, int);
68 static void dump_function_decl (cxx_pretty_printer
*, tree
, int);
69 static void dump_expr (cxx_pretty_printer
*, tree
, int);
70 static void dump_unary_op (cxx_pretty_printer
*, const char *, tree
, int);
71 static void dump_binary_op (cxx_pretty_printer
*, const char *, tree
, int);
72 static void dump_aggr_type (cxx_pretty_printer
*, tree
, int);
73 static void dump_type_prefix (cxx_pretty_printer
*, tree
, int);
74 static void dump_type_suffix (cxx_pretty_printer
*, tree
, int);
75 static void dump_function_name (cxx_pretty_printer
*, tree
, int);
76 static void dump_call_expr_args (cxx_pretty_printer
*, tree
, int, bool);
77 static void dump_aggr_init_expr_args (cxx_pretty_printer
*, tree
, int, bool);
78 static void dump_expr_list (cxx_pretty_printer
*, tree
, int);
79 static void dump_global_iord (cxx_pretty_printer
*, tree
);
80 static void dump_parameters (cxx_pretty_printer
*, tree
, int);
81 static void dump_ref_qualifier (cxx_pretty_printer
*, tree
, int);
82 static void dump_exception_spec (cxx_pretty_printer
*, tree
, int);
83 static void dump_template_argument (cxx_pretty_printer
*, tree
, int);
84 static void dump_template_argument_list (cxx_pretty_printer
*, tree
, int);
85 static void dump_template_parameter (cxx_pretty_printer
*, tree
, int);
86 static void dump_template_bindings (cxx_pretty_printer
*, tree
, tree
,
88 static void dump_scope (cxx_pretty_printer
*, tree
, int);
89 static void dump_template_parms (cxx_pretty_printer
*, tree
, int, int);
90 static int get_non_default_template_args_count (tree
, int);
91 static const char *function_category (tree
);
92 static void maybe_print_constexpr_context (diagnostic_context
*);
93 static void maybe_print_instantiation_context (diagnostic_context
*);
94 static void print_instantiation_full_context (diagnostic_context
*);
95 static void print_instantiation_partial_context (diagnostic_context
*,
98 static void cp_diagnostic_starter (diagnostic_context
*, diagnostic_info
*);
99 static void cp_print_error_function (diagnostic_context
*, diagnostic_info
*);
101 static bool cp_printer (pretty_printer
*, text_info
*, const char *,
102 int, bool, bool, bool);
104 /* CONTEXT->printer is a basic pretty printer that was constructed
105 presumably by diagnostic_initialize(), called early in the
106 compiler's initialization process (in general_init) Before the FE
107 is initialized. This (C++) FE-specific diagnostic initializer is
108 thus replacing the basic pretty printer with one that has C++-aware
112 cxx_initialize_diagnostics (diagnostic_context
*context
)
114 pretty_printer
*base
= context
->printer
;
115 cxx_pretty_printer
*pp
= XNEW (cxx_pretty_printer
);
116 context
->printer
= new (pp
) cxx_pretty_printer ();
118 /* It is safe to free this object because it was previously XNEW()'d. */
119 base
->~pretty_printer ();
122 c_common_diagnostics_set_defaults (context
);
123 diagnostic_starter (context
) = cp_diagnostic_starter
;
124 /* diagnostic_finalizer is already c_diagnostic_finalizer. */
125 diagnostic_format_decoder (context
) = cp_printer
;
128 /* Dump a scope, if deemed necessary. */
131 dump_scope (cxx_pretty_printer
*pp
, tree scope
, int flags
)
133 int f
= flags
& (TFF_SCOPE
| TFF_CHASE_TYPEDEF
);
135 if (scope
== NULL_TREE
)
138 if (TREE_CODE (scope
) == NAMESPACE_DECL
)
140 if (scope
!= global_namespace
)
142 dump_decl (pp
, scope
, f
);
143 pp_cxx_colon_colon (pp
);
146 else if (AGGREGATE_TYPE_P (scope
))
148 dump_type (pp
, scope
, f
);
149 pp_cxx_colon_colon (pp
);
151 else if ((flags
& TFF_SCOPE
) && TREE_CODE (scope
) == FUNCTION_DECL
)
153 dump_function_decl (pp
, scope
, f
);
154 pp_cxx_colon_colon (pp
);
158 /* Dump the template ARGument under control of FLAGS. */
161 dump_template_argument (cxx_pretty_printer
*pp
, tree arg
, int flags
)
163 if (ARGUMENT_PACK_P (arg
))
164 dump_template_argument_list (pp
, ARGUMENT_PACK_ARGS (arg
),
165 /* No default args in argument packs. */
166 flags
|TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS
);
167 else if (TYPE_P (arg
) || TREE_CODE (arg
) == TEMPLATE_DECL
)
168 dump_type (pp
, arg
, flags
& ~TFF_CLASS_KEY_OR_ENUM
);
171 if (TREE_CODE (arg
) == TREE_LIST
)
172 arg
= TREE_VALUE (arg
);
174 dump_expr (pp
, arg
, (flags
| TFF_EXPR_IN_PARENS
) & ~TFF_CLASS_KEY_OR_ENUM
);
178 /* Count the number of template arguments ARGS whose value does not
179 match the (optional) default template parameter in PARAMS */
182 get_non_default_template_args_count (tree args
, int flags
)
184 int n
= TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (args
));
186 if (/* We use this flag when generating debug information. We don't
187 want to expand templates at this point, for this may generate
188 new decls, which gets decl counts out of sync, which may in
189 turn cause codegen differences between compilations with and
191 (flags
& TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS
) != 0
192 || !flag_pretty_templates
)
195 return GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT (INNERMOST_TEMPLATE_ARGS (args
));
198 /* Dump a template-argument-list ARGS (always a TREE_VEC) under control
202 dump_template_argument_list (cxx_pretty_printer
*pp
, tree args
, int flags
)
204 int n
= get_non_default_template_args_count (args
, flags
);
208 for (i
= 0; i
< n
; ++i
)
210 tree arg
= TREE_VEC_ELT (args
, i
);
212 /* Only print a comma if we know there is an argument coming. In
213 the case of an empty template argument pack, no actual
214 argument will be printed. */
216 && (!ARGUMENT_PACK_P (arg
)
217 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg
)) > 0))
218 pp_separate_with_comma (pp
);
220 dump_template_argument (pp
, arg
, flags
);
225 /* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
228 dump_template_parameter (cxx_pretty_printer
*pp
, tree parm
, int flags
)
233 if (parm
== error_mark_node
)
236 p
= TREE_VALUE (parm
);
237 a
= TREE_PURPOSE (parm
);
239 if (TREE_CODE (p
) == TYPE_DECL
)
241 if (flags
& TFF_DECL_SPECIFIERS
)
243 pp_cxx_ws_string (pp
, "class");
244 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p
)))
245 pp_cxx_ws_string (pp
, "...");
247 pp_cxx_tree_identifier (pp
, DECL_NAME (p
));
249 else if (DECL_NAME (p
))
250 pp_cxx_tree_identifier (pp
, DECL_NAME (p
));
252 pp_cxx_canonical_template_parameter (pp
, TREE_TYPE (p
));
255 dump_decl (pp
, p
, flags
| TFF_DECL_SPECIFIERS
);
257 if ((flags
& TFF_FUNCTION_DEFAULT_ARGUMENTS
) && a
!= NULL_TREE
)
259 pp_cxx_whitespace (pp
);
261 pp_cxx_whitespace (pp
);
262 if (TREE_CODE (p
) == TYPE_DECL
|| TREE_CODE (p
) == TEMPLATE_DECL
)
263 dump_type (pp
, a
, flags
& ~TFF_CHASE_TYPEDEF
);
265 dump_expr (pp
, a
, flags
| TFF_EXPR_IN_PARENS
);
269 /* Dump, under control of FLAGS, a template-parameter-list binding.
270 PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
274 dump_template_bindings (cxx_pretty_printer
*pp
, tree parms
, tree args
,
275 vec
<tree
, va_gc
> *typenames
)
277 bool need_semicolon
= false;
283 tree p
= TREE_VALUE (parms
);
284 int lvl
= TMPL_PARMS_DEPTH (parms
);
287 tree lvl_args
= NULL_TREE
;
289 /* Don't crash if we had an invalid argument list. */
290 if (TMPL_ARGS_DEPTH (args
) >= lvl
)
291 lvl_args
= TMPL_ARGS_LEVEL (args
, lvl
);
293 for (i
= 0; i
< TREE_VEC_LENGTH (p
); ++i
)
295 tree arg
= NULL_TREE
;
297 /* Don't crash if we had an invalid argument list. */
298 if (lvl_args
&& NUM_TMPL_ARGS (lvl_args
) > arg_idx
)
299 arg
= TREE_VEC_ELT (lvl_args
, arg_idx
);
302 pp_separate_with_semicolon (pp
);
303 dump_template_parameter (pp
, TREE_VEC_ELT (p
, i
),
304 TFF_PLAIN_IDENTIFIER
);
305 pp_cxx_whitespace (pp
);
307 pp_cxx_whitespace (pp
);
310 if (ARGUMENT_PACK_P (arg
))
311 pp_cxx_left_brace (pp
);
312 dump_template_argument (pp
, arg
, TFF_PLAIN_IDENTIFIER
);
313 if (ARGUMENT_PACK_P (arg
))
314 pp_cxx_right_brace (pp
);
317 pp_string (pp
, M_("<missing>"));
320 need_semicolon
= true;
323 parms
= TREE_CHAIN (parms
);
326 /* Don't bother with typenames for a partial instantiation. */
327 if (vec_safe_is_empty (typenames
) || uses_template_parms (args
))
330 /* Don't try to print typenames when we're processing a clone. */
331 if (current_function_decl
332 && !DECL_LANG_SPECIFIC (current_function_decl
))
335 /* Don't try to do this once cgraph starts throwing away front-end
340 FOR_EACH_VEC_SAFE_ELT (typenames
, i
, t
)
343 pp_separate_with_semicolon (pp
);
344 dump_type (pp
, t
, TFF_PLAIN_IDENTIFIER
);
345 pp_cxx_whitespace (pp
);
347 pp_cxx_whitespace (pp
);
348 push_deferring_access_checks (dk_no_check
);
349 t
= tsubst (t
, args
, tf_none
, NULL_TREE
);
350 pop_deferring_access_checks ();
351 /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
352 pp_simple_type_specifier doesn't know about it. */
353 t
= strip_typedefs (t
);
354 dump_type (pp
, t
, TFF_PLAIN_IDENTIFIER
);
358 /* Dump a human-readable equivalent of the alias template
359 specialization of T. */
362 dump_alias_template_specialization (cxx_pretty_printer
*pp
, tree t
, int flags
)
366 gcc_assert (alias_template_specialization_p (t
));
368 if (!(flags
& TFF_UNQUALIFIED_NAME
))
369 dump_scope (pp
, CP_DECL_CONTEXT (TYPE_NAME (t
)), flags
);
370 name
= TYPE_IDENTIFIER (t
);
371 pp_cxx_tree_identifier (pp
, name
);
372 dump_template_parms (pp
, TYPE_TEMPLATE_INFO (t
),
374 flags
& ~TFF_TEMPLATE_HEADER
);
377 /* Dump a human-readable equivalent of TYPE. FLAGS controls the
381 dump_type (cxx_pretty_printer
*pp
, tree t
, int flags
)
386 /* Don't print e.g. "struct mytypedef". */
387 if (TYPE_P (t
) && typedef_variant_p (t
))
389 tree decl
= TYPE_NAME (t
);
390 if ((flags
& TFF_CHASE_TYPEDEF
)
391 || DECL_SELF_REFERENCE_P (decl
)
392 || (!flag_pretty_templates
393 && DECL_LANG_SPECIFIC (decl
) && DECL_TEMPLATE_INFO (decl
)))
394 t
= strip_typedefs (t
);
395 else if (alias_template_specialization_p (t
))
397 dump_alias_template_specialization (pp
, t
, flags
);
400 else if (same_type_p (t
, TREE_TYPE (decl
)))
404 pp_cxx_cv_qualifier_seq (pp
, t
);
405 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
410 if (TYPE_PTRMEMFUNC_P (t
))
413 switch (TREE_CODE (t
))
416 if (t
== init_list_type_node
)
417 pp_string (pp
, M_("<brace-enclosed initializer list>"));
418 else if (t
== unknown_type_node
)
419 pp_string (pp
, M_("<unresolved overloaded function type>"));
422 pp_cxx_cv_qualifier_seq (pp
, t
);
423 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
428 /* A list of function parms. */
429 dump_parameters (pp
, t
, flags
);
432 case IDENTIFIER_NODE
:
433 pp_cxx_tree_identifier (pp
, t
);
437 dump_type (pp
, BINFO_TYPE (t
), flags
);
443 dump_aggr_type (pp
, t
, flags
);
447 if (flags
& TFF_CHASE_TYPEDEF
)
449 dump_type (pp
, DECL_ORIGINAL_TYPE (t
)
450 ? DECL_ORIGINAL_TYPE (t
) : TREE_TYPE (t
), flags
);
453 /* Else fall through. */
457 dump_decl (pp
, t
, flags
& ~TFF_DECL_SPECIFIERS
);
466 case FIXED_POINT_TYPE
:
467 pp_type_specifier_seq (pp
, t
);
470 case TEMPLATE_TEMPLATE_PARM
:
471 /* For parameters inside template signature. */
472 if (TYPE_IDENTIFIER (t
))
473 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
475 pp_cxx_canonical_template_parameter (pp
, t
);
478 case BOUND_TEMPLATE_TEMPLATE_PARM
:
480 tree args
= TYPE_TI_ARGS (t
);
481 pp_cxx_cv_qualifier_seq (pp
, t
);
482 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
483 pp_cxx_begin_template_argument_list (pp
);
484 dump_template_argument_list (pp
, args
, flags
);
485 pp_cxx_end_template_argument_list (pp
);
489 case TEMPLATE_TYPE_PARM
:
490 pp_cxx_cv_qualifier_seq (pp
, t
);
491 if (tree c
= PLACEHOLDER_TYPE_CONSTRAINTS (t
))
492 pp_cxx_constrained_type_spec (pp
, c
);
493 else if (TYPE_IDENTIFIER (t
))
494 pp_cxx_tree_identifier (pp
, TYPE_IDENTIFIER (t
));
496 pp_cxx_canonical_template_parameter
497 (pp
, TEMPLATE_TYPE_PARM_INDEX (t
));
500 /* This is not always necessary for pointers and such, but doing this
501 reduces code size. */
510 dump_type_prefix (pp
, t
, flags
);
511 dump_type_suffix (pp
, t
, flags
);
515 if (! (flags
& TFF_CHASE_TYPEDEF
)
516 && DECL_ORIGINAL_TYPE (TYPE_NAME (t
)))
518 dump_decl (pp
, TYPE_NAME (t
), TFF_PLAIN_IDENTIFIER
);
521 pp_cxx_cv_qualifier_seq (pp
, t
);
522 pp_cxx_ws_string (pp
,
523 TYPENAME_IS_ENUM_P (t
) ? "enum"
524 : TYPENAME_IS_CLASS_P (t
) ? "class"
526 dump_typename (pp
, t
, flags
);
529 case UNBOUND_CLASS_TEMPLATE
:
530 if (! (flags
& TFF_UNQUALIFIED_NAME
))
532 dump_type (pp
, TYPE_CONTEXT (t
), flags
);
533 pp_cxx_colon_colon (pp
);
535 pp_cxx_ws_string (pp
, "template");
536 dump_type (pp
, TYPE_IDENTIFIER (t
), flags
);
540 pp_cxx_ws_string (pp
, "__typeof__");
541 pp_cxx_whitespace (pp
);
542 pp_cxx_left_paren (pp
);
543 dump_expr (pp
, TYPEOF_TYPE_EXPR (t
), flags
& ~TFF_EXPR_IN_PARENS
);
544 pp_cxx_right_paren (pp
);
547 case UNDERLYING_TYPE
:
548 pp_cxx_ws_string (pp
, "__underlying_type");
549 pp_cxx_whitespace (pp
);
550 pp_cxx_left_paren (pp
);
551 dump_expr (pp
, UNDERLYING_TYPE_TYPE (t
), flags
& ~TFF_EXPR_IN_PARENS
);
552 pp_cxx_right_paren (pp
);
555 case TYPE_PACK_EXPANSION
:
556 dump_type (pp
, PACK_EXPANSION_PATTERN (t
), flags
);
557 pp_cxx_ws_string (pp
, "...");
560 case TYPE_ARGUMENT_PACK
:
561 dump_template_argument (pp
, t
, flags
);
565 pp_cxx_ws_string (pp
, "decltype");
566 pp_cxx_whitespace (pp
);
567 pp_cxx_left_paren (pp
);
568 dump_expr (pp
, DECLTYPE_TYPE_EXPR (t
), flags
& ~TFF_EXPR_IN_PARENS
);
569 pp_cxx_right_paren (pp
);
573 pp_string (pp
, "std::nullptr_t");
577 pp_unsupported_tree (pp
, t
);
578 /* Fall through to error. */
581 pp_string (pp
, M_("<type error>"));
586 /* Dump a TYPENAME_TYPE. We need to notice when the context is itself
590 dump_typename (cxx_pretty_printer
*pp
, tree t
, int flags
)
592 tree ctx
= TYPE_CONTEXT (t
);
594 if (TREE_CODE (ctx
) == TYPENAME_TYPE
)
595 dump_typename (pp
, ctx
, flags
);
597 dump_type (pp
, ctx
, flags
& ~TFF_CLASS_KEY_OR_ENUM
);
598 pp_cxx_colon_colon (pp
);
599 dump_decl (pp
, TYPENAME_TYPE_FULLNAME (t
), flags
);
602 /* Return the name of the supplied aggregate, or enumeral type. */
605 class_key_or_enum_as_string (tree t
)
607 if (TREE_CODE (t
) == ENUMERAL_TYPE
)
609 if (SCOPED_ENUM_P (t
))
614 else if (TREE_CODE (t
) == UNION_TYPE
)
616 else if (TYPE_LANG_SPECIFIC (t
) && CLASSTYPE_DECLARED_CLASS (t
))
622 /* Print out a class declaration T under the control of FLAGS,
623 in the form `class foo'. */
626 dump_aggr_type (cxx_pretty_printer
*pp
, tree t
, int flags
)
629 const char *variety
= class_key_or_enum_as_string (t
);
633 pp_cxx_cv_qualifier_seq (pp
, t
);
635 if (flags
& TFF_CLASS_KEY_OR_ENUM
)
636 pp_cxx_ws_string (pp
, variety
);
638 name
= TYPE_NAME (t
);
642 typdef
= (!DECL_ARTIFICIAL (name
)
643 /* An alias specialization is not considered to be a
645 && !alias_template_specialization_p (t
));
648 && ((flags
& TFF_CHASE_TYPEDEF
)
649 || (!flag_pretty_templates
&& DECL_LANG_SPECIFIC (name
)
650 && DECL_TEMPLATE_INFO (name
))))
651 || DECL_SELF_REFERENCE_P (name
))
653 t
= TYPE_MAIN_VARIANT (t
);
654 name
= TYPE_NAME (t
);
658 tmplate
= !typdef
&& TREE_CODE (t
) != ENUMERAL_TYPE
659 && TYPE_LANG_SPECIFIC (t
) && CLASSTYPE_TEMPLATE_INFO (t
)
660 && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t
)) != TEMPLATE_DECL
661 || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t
)));
663 if (! (flags
& TFF_UNQUALIFIED_NAME
))
664 dump_scope (pp
, CP_DECL_CONTEXT (name
), flags
| TFF_SCOPE
);
665 flags
&= ~TFF_UNQUALIFIED_NAME
;
668 /* Because the template names are mangled, we have to locate
669 the most general template, and use that name. */
670 tree tpl
= TYPE_TI_TEMPLATE (t
);
672 while (DECL_TEMPLATE_INFO (tpl
))
673 tpl
= DECL_TI_TEMPLATE (tpl
);
676 name
= DECL_NAME (name
);
679 if (name
== 0 || anon_aggrname_p (name
))
681 if (flags
& TFF_CLASS_KEY_OR_ENUM
)
682 pp_string (pp
, M_("<anonymous>"));
684 pp_printf (pp
, M_("<anonymous %s>"), variety
);
686 else if (LAMBDA_TYPE_P (t
))
688 /* A lambda's "type" is essentially its signature. */
689 pp_string (pp
, M_("<lambda"));
690 if (lambda_function (t
))
692 FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t
)),
697 pp_cxx_tree_identifier (pp
, name
);
699 dump_template_parms (pp
, TYPE_TEMPLATE_INFO (t
),
700 !CLASSTYPE_USE_TEMPLATE (t
),
701 flags
& ~TFF_TEMPLATE_HEADER
);
704 /* Dump into the obstack the initial part of the output for a given type.
705 This is necessary when dealing with things like functions returning
708 return type of `int (* fee ())()': pointer -> function -> int. Both
709 pointer (and reference and offset) and function (and member) types must
710 deal with prefix and suffix.
712 Arrays must also do this for DECL nodes, like int a[], and for things like
716 dump_type_prefix (cxx_pretty_printer
*pp
, tree t
, int flags
)
718 if (TYPE_PTRMEMFUNC_P (t
))
720 t
= TYPE_PTRMEMFUNC_FN_TYPE (t
);
724 switch (TREE_CODE (t
))
729 tree sub
= TREE_TYPE (t
);
731 dump_type_prefix (pp
, sub
, flags
);
732 if (TREE_CODE (sub
) == ARRAY_TYPE
733 || TREE_CODE (sub
) == FUNCTION_TYPE
)
735 pp_cxx_whitespace (pp
);
736 pp_cxx_left_paren (pp
);
737 pp_c_attributes_display (pp
, TYPE_ATTRIBUTES (sub
));
741 else if (TREE_CODE (t
) == REFERENCE_TYPE
)
743 if (TYPE_REF_IS_RVALUE (t
))
744 pp_ampersand_ampersand (pp
);
748 pp
->padding
= pp_before
;
749 pp_cxx_cv_qualifier_seq (pp
, t
);
755 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
756 if (TREE_CODE (t
) == OFFSET_TYPE
) /* pmfs deal with this in d_t_p */
759 if (TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
)
760 pp_cxx_left_paren (pp
);
761 dump_type (pp
, TYPE_OFFSET_BASETYPE (t
), flags
);
762 pp_cxx_colon_colon (pp
);
765 pp_cxx_cv_qualifier_seq (pp
, t
);
766 pp
->padding
= pp_before
;
769 /* This can be reached without a pointer when dealing with
770 templates, e.g. std::is_function. */
772 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
776 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
778 pp_cxx_left_paren (pp
);
779 dump_aggr_type (pp
, TYPE_METHOD_BASETYPE (t
), flags
);
780 pp_cxx_colon_colon (pp
);
784 dump_type_prefix (pp
, TREE_TYPE (t
), flags
);
788 case IDENTIFIER_NODE
:
793 case TEMPLATE_TYPE_PARM
:
794 case TEMPLATE_TEMPLATE_PARM
:
795 case BOUND_TEMPLATE_TEMPLATE_PARM
:
806 case UNDERLYING_TYPE
:
808 case TYPE_PACK_EXPANSION
:
809 case FIXED_POINT_TYPE
:
811 dump_type (pp
, t
, flags
);
812 pp
->padding
= pp_before
;
816 pp_unsupported_tree (pp
, t
);
819 pp_string (pp
, M_("<typeprefixerror>"));
824 /* Dump the suffix of type T, under control of FLAGS. This is the part
825 which appears after the identifier (or function parms). */
828 dump_type_suffix (cxx_pretty_printer
*pp
, tree t
, int flags
)
830 if (TYPE_PTRMEMFUNC_P (t
))
831 t
= TYPE_PTRMEMFUNC_FN_TYPE (t
);
833 switch (TREE_CODE (t
))
838 if (TREE_CODE (TREE_TYPE (t
)) == ARRAY_TYPE
839 || TREE_CODE (TREE_TYPE (t
)) == FUNCTION_TYPE
)
840 pp_cxx_right_paren (pp
);
841 if (TREE_CODE (t
) == POINTER_TYPE
)
842 flags
|= TFF_POINTER
;
843 dump_type_suffix (pp
, TREE_TYPE (t
), flags
);
850 if (TREE_CODE (t
) == METHOD_TYPE
)
851 /* Can only be reached through a pointer. */
852 pp_cxx_right_paren (pp
);
853 arg
= TYPE_ARG_TYPES (t
);
854 if (TREE_CODE (t
) == METHOD_TYPE
)
855 arg
= TREE_CHAIN (arg
);
857 /* Function pointers don't have default args. Not in standard C++,
858 anyway; they may in g++, but we'll just pretend otherwise. */
859 dump_parameters (pp
, arg
, flags
& ~TFF_FUNCTION_DEFAULT_ARGUMENTS
);
861 pp
->padding
= pp_before
;
862 pp_cxx_cv_qualifiers (pp
, type_memfn_quals (t
),
863 TREE_CODE (t
) == FUNCTION_TYPE
864 && (flags
& TFF_POINTER
));
865 dump_ref_qualifier (pp
, t
, flags
);
866 if (tx_safe_fn_type_p (t
))
867 pp_cxx_ws_string (pp
, "transaction_safe");
868 dump_exception_spec (pp
, TYPE_RAISES_EXCEPTIONS (t
), flags
);
869 dump_type_suffix (pp
, TREE_TYPE (t
), flags
);
875 pp_cxx_left_bracket (pp
);
876 if (tree dtype
= TYPE_DOMAIN (t
))
878 tree max
= TYPE_MAX_VALUE (dtype
);
879 /* Zero-length arrays have an upper bound of SIZE_MAX. */
880 if (integer_all_onesp (max
))
881 pp_character (pp
, '0');
882 else if (tree_fits_shwi_p (max
))
883 pp_wide_integer (pp
, tree_to_shwi (max
) + 1);
887 if (TREE_CODE (max
) == SAVE_EXPR
)
888 max
= TREE_OPERAND (max
, 0);
889 if (TREE_CODE (max
) == MINUS_EXPR
890 || TREE_CODE (max
) == PLUS_EXPR
)
892 max
= TREE_OPERAND (max
, 0);
893 while (CONVERT_EXPR_P (max
))
894 max
= TREE_OPERAND (max
, 0);
897 max
= fold_build2_loc (input_location
,
898 PLUS_EXPR
, dtype
, max
,
899 build_int_cst (dtype
, 1));
900 dump_expr (pp
, max
, flags
& ~TFF_EXPR_IN_PARENS
);
903 pp_cxx_right_bracket (pp
);
904 dump_type_suffix (pp
, TREE_TYPE (t
), flags
);
908 case IDENTIFIER_NODE
:
913 case TEMPLATE_TYPE_PARM
:
914 case TEMPLATE_TEMPLATE_PARM
:
915 case BOUND_TEMPLATE_TEMPLATE_PARM
:
926 case UNDERLYING_TYPE
:
928 case TYPE_PACK_EXPANSION
:
929 case FIXED_POINT_TYPE
:
934 pp_unsupported_tree (pp
, t
);
936 /* Don't mark it here, we should have already done in
943 dump_global_iord (cxx_pretty_printer
*pp
, tree t
)
945 const char *p
= NULL
;
947 if (DECL_GLOBAL_CTOR_P (t
))
948 p
= M_("(static initializers for %s)");
949 else if (DECL_GLOBAL_DTOR_P (t
))
950 p
= M_("(static destructors for %s)");
954 pp_printf (pp
, p
, DECL_SOURCE_FILE (t
));
958 dump_simple_decl (cxx_pretty_printer
*pp
, tree t
, tree type
, int flags
)
960 if (flags
& TFF_DECL_SPECIFIERS
)
963 && DECL_DECLARED_CONSTEXPR_P (t
))
965 if (DECL_DECLARED_CONCEPT_P (t
))
966 pp_cxx_ws_string (pp
, "concept");
968 pp_cxx_ws_string (pp
, "constexpr");
970 dump_type_prefix (pp
, type
, flags
& ~TFF_UNQUALIFIED_NAME
);
973 if (! (flags
& TFF_UNQUALIFIED_NAME
)
974 && TREE_CODE (t
) != PARM_DECL
975 && (!DECL_INITIAL (t
)
976 || TREE_CODE (DECL_INITIAL (t
)) != TEMPLATE_PARM_INDEX
))
977 dump_scope (pp
, CP_DECL_CONTEXT (t
), flags
);
978 flags
&= ~TFF_UNQUALIFIED_NAME
;
979 if ((flags
& TFF_DECL_SPECIFIERS
)
980 && DECL_TEMPLATE_PARM_P (t
)
981 && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t
)))
982 pp_string (pp
, "...");
985 if (TREE_CODE (t
) == FIELD_DECL
&& DECL_NORMAL_CAPTURE_P (t
))
988 pp_string (pp
, IDENTIFIER_POINTER (DECL_NAME (t
)) + 2);
989 pp_string (pp
, " capture>");
992 dump_decl (pp
, DECL_NAME (t
), flags
);
995 pp_string (pp
, M_("<anonymous>"));
996 if (flags
& TFF_DECL_SPECIFIERS
)
997 dump_type_suffix (pp
, type
, flags
);
1000 /* Dump a human readable string for the decl T under control of FLAGS. */
1003 dump_decl (cxx_pretty_printer
*pp
, tree t
, int flags
)
1008 /* If doing Objective-C++, give Objective-C a chance to demangle
1009 Objective-C method names. */
1010 if (c_dialect_objc ())
1012 const char *demangled
= objc_maybe_printable_name (t
, flags
);
1015 pp_string (pp
, demangled
);
1020 switch (TREE_CODE (t
))
1023 /* Don't say 'typedef class A' */
1024 if (DECL_ARTIFICIAL (t
) && !DECL_SELF_REFERENCE_P (t
))
1026 if ((flags
& TFF_DECL_SPECIFIERS
)
1027 && TREE_CODE (TREE_TYPE (t
)) == TEMPLATE_TYPE_PARM
)
1029 /* Say `class T' not just `T'. */
1030 pp_cxx_ws_string (pp
, "class");
1032 /* Emit the `...' for a parameter pack. */
1033 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t
)))
1034 pp_cxx_ws_string (pp
, "...");
1037 dump_type (pp
, TREE_TYPE (t
), flags
);
1040 if (TYPE_DECL_ALIAS_P (t
)
1041 && (flags
& TFF_DECL_SPECIFIERS
1042 || flags
& TFF_CLASS_KEY_OR_ENUM
))
1044 pp_cxx_ws_string (pp
, "using");
1045 dump_decl (pp
, DECL_NAME (t
), flags
);
1046 pp_cxx_whitespace (pp
);
1047 pp_cxx_ws_string (pp
, "=");
1048 pp_cxx_whitespace (pp
);
1049 dump_type (pp
, DECL_ORIGINAL_TYPE (t
), flags
);
1052 if ((flags
& TFF_DECL_SPECIFIERS
)
1053 && !DECL_SELF_REFERENCE_P (t
))
1054 pp_cxx_ws_string (pp
, "typedef");
1055 dump_simple_decl (pp
, t
, DECL_ORIGINAL_TYPE (t
)
1056 ? DECL_ORIGINAL_TYPE (t
) : TREE_TYPE (t
),
1061 if (DECL_NAME (t
) && VTABLE_NAME_P (DECL_NAME (t
)))
1063 pp_string (pp
, M_("vtable for "));
1064 gcc_assert (TYPE_P (DECL_CONTEXT (t
)));
1065 dump_type (pp
, DECL_CONTEXT (t
), flags
);
1068 /* Else fall through. */
1071 dump_simple_decl (pp
, t
, TREE_TYPE (t
), flags
);
1073 /* Handle variable template specializations. */
1075 && DECL_LANG_SPECIFIC (t
)
1076 && DECL_TEMPLATE_INFO (t
)
1077 && PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t
)))
1079 pp_cxx_begin_template_argument_list (pp
);
1080 tree args
= INNERMOST_TEMPLATE_ARGS (DECL_TI_ARGS (t
));
1081 dump_template_argument_list (pp
, args
, flags
);
1082 pp_cxx_end_template_argument_list (pp
);
1087 pp_string (pp
, M_("<return value> "));
1088 dump_simple_decl (pp
, t
, TREE_TYPE (t
), flags
);
1091 case NAMESPACE_DECL
:
1092 if (flags
& TFF_DECL_SPECIFIERS
)
1093 pp
->declaration (t
);
1096 if (! (flags
& TFF_UNQUALIFIED_NAME
))
1097 dump_scope (pp
, CP_DECL_CONTEXT (t
), flags
);
1098 flags
&= ~TFF_UNQUALIFIED_NAME
;
1099 if (DECL_NAME (t
) == NULL_TREE
)
1101 if (!(pp
->flags
& pp_c_flag_gnu_v3
))
1102 pp_cxx_ws_string (pp
, M_("{anonymous}"));
1104 pp_cxx_ws_string (pp
, M_("(anonymous namespace)"));
1107 pp_cxx_tree_identifier (pp
, DECL_NAME (t
));
1112 dump_type (pp
, TREE_OPERAND (t
, 0), flags
);
1113 pp_colon_colon (pp
);
1114 dump_decl (pp
, TREE_OPERAND (t
, 1), TFF_UNQUALIFIED_NAME
);
1118 dump_decl (pp
, TREE_OPERAND (t
, 0), flags
);
1119 pp_cxx_left_bracket (pp
);
1120 dump_decl (pp
, TREE_OPERAND (t
, 1), flags
);
1121 pp_cxx_right_bracket (pp
);
1124 case ARRAY_NOTATION_REF
:
1125 dump_decl (pp
, ARRAY_NOTATION_ARRAY (t
), flags
| TFF_EXPR_IN_PARENS
);
1126 pp_cxx_left_bracket (pp
);
1127 dump_decl (pp
, ARRAY_NOTATION_START (t
), flags
| TFF_EXPR_IN_PARENS
);
1129 dump_decl (pp
, ARRAY_NOTATION_LENGTH (t
), flags
| TFF_EXPR_IN_PARENS
);
1131 dump_decl (pp
, ARRAY_NOTATION_STRIDE (t
), flags
| TFF_EXPR_IN_PARENS
);
1132 pp_cxx_right_bracket (pp
);
1135 /* So that we can do dump_decl on an aggr type. */
1139 dump_type (pp
, t
, flags
);
1143 /* This is a pseudo destructor call which has not been folded into
1144 a PSEUDO_DTOR_EXPR yet. */
1145 pp_cxx_complement (pp
);
1146 dump_type (pp
, TREE_OPERAND (t
, 0), flags
);
1153 /* These special cases are duplicated here so that other functions
1154 can feed identifiers to error and get them demangled properly. */
1155 case IDENTIFIER_NODE
:
1156 if (IDENTIFIER_TYPENAME_P (t
))
1158 pp_cxx_ws_string (pp
, "operator");
1159 /* Not exactly IDENTIFIER_TYPE_VALUE. */
1160 dump_type (pp
, TREE_TYPE (t
), flags
);
1164 pp_cxx_tree_identifier (pp
, t
);
1170 t
= OVL_CURRENT (t
);
1171 if (DECL_CLASS_SCOPE_P (t
))
1173 dump_type (pp
, DECL_CONTEXT (t
), flags
);
1174 pp_cxx_colon_colon (pp
);
1176 else if (!DECL_FILE_SCOPE_P (t
))
1178 dump_decl (pp
, DECL_CONTEXT (t
), flags
);
1179 pp_cxx_colon_colon (pp
);
1181 dump_decl (pp
, DECL_NAME (t
), flags
);
1185 /* If there's only one function, just treat it like an ordinary
1187 t
= OVL_CURRENT (t
);
1191 if (! DECL_LANG_SPECIFIC (t
))
1193 if (DECL_ABSTRACT_ORIGIN (t
))
1194 dump_decl (pp
, DECL_ABSTRACT_ORIGIN (t
), flags
);
1196 pp_string (pp
, M_("<built-in>"));
1198 else if (DECL_GLOBAL_CTOR_P (t
) || DECL_GLOBAL_DTOR_P (t
))
1199 dump_global_iord (pp
, t
);
1201 dump_function_decl (pp
, t
, flags
);
1205 dump_template_decl (pp
, t
, flags
);
1208 case TEMPLATE_ID_EXPR
:
1210 tree name
= TREE_OPERAND (t
, 0);
1211 tree args
= TREE_OPERAND (t
, 1);
1213 if (is_overloaded_fn (name
))
1214 name
= get_first_fn (name
);
1216 name
= DECL_NAME (name
);
1217 dump_decl (pp
, name
, flags
);
1218 pp_cxx_begin_template_argument_list (pp
);
1219 if (args
== error_mark_node
)
1220 pp_string (pp
, M_("<template arguments error>"));
1222 dump_template_argument_list
1223 (pp
, args
, flags
|TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS
);
1224 pp_cxx_end_template_argument_list (pp
);
1229 pp_cxx_tree_identifier (pp
, DECL_NAME (t
));
1233 if ((TREE_TYPE (t
) != NULL_TREE
&& NEXT_CODE (t
) == ENUMERAL_TYPE
)
1234 || (DECL_INITIAL (t
) &&
1235 TREE_CODE (DECL_INITIAL (t
)) == TEMPLATE_PARM_INDEX
))
1236 dump_simple_decl (pp
, t
, TREE_TYPE (t
), flags
);
1237 else if (DECL_NAME (t
))
1238 dump_decl (pp
, DECL_NAME (t
), flags
);
1239 else if (DECL_INITIAL (t
))
1240 dump_expr (pp
, DECL_INITIAL (t
), flags
| TFF_EXPR_IN_PARENS
);
1242 pp_string (pp
, M_("<enumerator>"));
1246 pp_cxx_ws_string (pp
, "using");
1247 dump_type (pp
, USING_DECL_SCOPE (t
), flags
);
1248 pp_cxx_colon_colon (pp
);
1249 dump_decl (pp
, DECL_NAME (t
), flags
);
1253 pp
->declaration (t
);
1257 dump_decl (pp
, BASELINK_FUNCTIONS (t
), flags
);
1260 case NON_DEPENDENT_EXPR
:
1261 dump_expr (pp
, t
, flags
);
1264 case TEMPLATE_TYPE_PARM
:
1265 if (flags
& TFF_DECL_SPECIFIERS
)
1266 pp
->declaration (t
);
1271 case UNBOUND_CLASS_TEMPLATE
:
1272 case TYPE_PACK_EXPANSION
:
1274 dump_type (pp
, t
, flags
);
1278 pp_unsupported_tree (pp
, t
);
1279 /* Fall through to error. */
1282 pp_string (pp
, M_("<declaration error>"));
1287 /* Dump a template declaration T under control of FLAGS. This means the
1288 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
1291 dump_template_decl (cxx_pretty_printer
*pp
, tree t
, int flags
)
1293 tree orig_parms
= DECL_TEMPLATE_PARMS (t
);
1297 if (flags
& TFF_TEMPLATE_HEADER
)
1299 for (parms
= orig_parms
= nreverse (orig_parms
);
1301 parms
= TREE_CHAIN (parms
))
1303 tree inner_parms
= INNERMOST_TEMPLATE_PARMS (parms
);
1304 int len
= TREE_VEC_LENGTH (inner_parms
);
1308 /* Skip over the dummy template levels of a template template
1310 gcc_assert (TREE_CODE (TREE_TYPE (t
)) == TEMPLATE_TEMPLATE_PARM
);
1314 pp_cxx_ws_string (pp
, "template");
1315 pp_cxx_begin_template_argument_list (pp
);
1317 /* If we've shown the template prefix, we'd better show the
1318 parameters' and decl's type too. */
1319 flags
|= TFF_DECL_SPECIFIERS
;
1321 for (i
= 0; i
< len
; i
++)
1324 pp_separate_with_comma (pp
);
1325 dump_template_parameter (pp
, TREE_VEC_ELT (inner_parms
, i
),
1328 pp_cxx_end_template_argument_list (pp
);
1329 pp_cxx_whitespace (pp
);
1331 nreverse(orig_parms
);
1333 if (DECL_TEMPLATE_TEMPLATE_PARM_P (t
))
1335 /* Say `template<arg> class TT' not just `template<arg> TT'. */
1336 pp_cxx_ws_string (pp
, "class");
1338 /* If this is a parameter pack, print the ellipsis. */
1339 if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t
)))
1340 pp_cxx_ws_string (pp
, "...");
1343 /* Only print the requirements if we're also printing
1344 the template header. */
1346 if (tree ci
= get_constraints (t
))
1347 if (check_constraint_info (ci
))
1348 if (tree reqs
= CI_TEMPLATE_REQS (ci
))
1350 pp_cxx_requires_clause (pp
, reqs
);
1351 pp_cxx_whitespace (pp
);
1356 if (DECL_CLASS_TEMPLATE_P (t
))
1357 dump_type (pp
, TREE_TYPE (t
),
1358 ((flags
& ~TFF_CLASS_KEY_OR_ENUM
) | TFF_TEMPLATE_NAME
1359 | (flags
& TFF_DECL_SPECIFIERS
? TFF_CLASS_KEY_OR_ENUM
: 0)));
1360 else if (DECL_TEMPLATE_RESULT (t
)
1361 && (VAR_P (DECL_TEMPLATE_RESULT (t
))
1362 /* Alias template. */
1363 || DECL_TYPE_TEMPLATE_P (t
)))
1364 dump_decl (pp
, DECL_TEMPLATE_RESULT (t
), flags
| TFF_TEMPLATE_NAME
);
1367 gcc_assert (TREE_TYPE (t
));
1368 switch (NEXT_CODE (t
))
1372 dump_function_decl (pp
, t
, flags
| TFF_TEMPLATE_NAME
);
1375 /* This case can occur with some invalid code. */
1376 dump_type (pp
, TREE_TYPE (t
),
1377 (flags
& ~TFF_CLASS_KEY_OR_ENUM
) | TFF_TEMPLATE_NAME
1378 | (flags
& TFF_DECL_SPECIFIERS
1379 ? TFF_CLASS_KEY_OR_ENUM
: 0));
1384 /* find_typenames looks through the type of the function template T
1385 and returns a vec containing any typedefs, decltypes or TYPENAME_TYPEs
1388 struct find_typenames_t
1390 hash_set
<tree
> *p_set
;
1391 vec
<tree
, va_gc
> *typenames
;
1395 find_typenames_r (tree
*tp
, int *walk_subtrees
, void *data
)
1397 struct find_typenames_t
*d
= (struct find_typenames_t
*)data
;
1398 tree mv
= NULL_TREE
;
1400 if (TYPE_P (*tp
) && is_typedef_decl (TYPE_NAME (*tp
)))
1401 /* Add the type of the typedef without any additional cv-quals. */
1402 mv
= TREE_TYPE (TYPE_NAME (*tp
));
1403 else if (TREE_CODE (*tp
) == TYPENAME_TYPE
1404 || TREE_CODE (*tp
) == DECLTYPE_TYPE
)
1405 /* Add the typename without any cv-qualifiers. */
1406 mv
= TYPE_MAIN_VARIANT (*tp
);
1408 if (TREE_CODE (*tp
) == TYPE_PACK_EXPANSION
)
1410 /* Don't mess with parameter packs since we don't remember
1411 the pack expansion context for a particular typename. */
1412 *walk_subtrees
= false;
1416 if (mv
&& (mv
== *tp
|| !d
->p_set
->add (mv
)))
1417 vec_safe_push (d
->typenames
, mv
);
1419 /* Search into class template arguments, which cp_walk_subtrees
1421 if (CLASS_TYPE_P (*tp
) && CLASSTYPE_TEMPLATE_INFO (*tp
))
1422 cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp
), find_typenames_r
,
1428 static vec
<tree
, va_gc
> *
1429 find_typenames (tree t
)
1431 struct find_typenames_t ft
;
1432 ft
.p_set
= new hash_set
<tree
>;
1433 ft
.typenames
= NULL
;
1434 cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t
)),
1435 find_typenames_r
, &ft
, ft
.p_set
);
1437 return ft
.typenames
;
1440 /* Output the "[with ...]" clause for a template instantiation T iff
1441 TEMPLATE_PARMS, TEMPLATE_ARGS and FLAGS are suitable. T may be NULL if
1442 formatting a deduction/substitution diagnostic rather than an
1446 dump_substitution (cxx_pretty_printer
*pp
,
1447 tree t
, tree template_parms
, tree template_args
,
1450 if (template_parms
!= NULL_TREE
&& template_args
!= NULL_TREE
1451 && !(flags
& TFF_NO_TEMPLATE_BINDINGS
))
1453 vec
<tree
, va_gc
> *typenames
= t
? find_typenames (t
) : NULL
;
1454 pp_cxx_whitespace (pp
);
1455 pp_cxx_left_bracket (pp
);
1456 pp
->translate_string ("with");
1457 pp_cxx_whitespace (pp
);
1458 dump_template_bindings (pp
, template_parms
, template_args
, typenames
);
1459 pp_cxx_right_bracket (pp
);
1463 /* Dump the lambda function FN including its 'mutable' qualifier and any
1464 template bindings. */
1467 dump_lambda_function (cxx_pretty_printer
*pp
,
1468 tree fn
, tree template_parms
, tree template_args
,
1471 /* A lambda's signature is essentially its "type". */
1472 dump_type (pp
, DECL_CONTEXT (fn
), flags
);
1473 if (!(TYPE_QUALS (class_of_this_parm (TREE_TYPE (fn
))) & TYPE_QUAL_CONST
))
1475 pp
->padding
= pp_before
;
1476 pp_c_ws_string (pp
, "mutable");
1478 dump_substitution (pp
, fn
, template_parms
, template_args
, flags
);
1481 /* Pretty print a function decl. There are several ways we want to print a
1482 function declaration. The TFF_ bits in FLAGS tells us how to behave.
1483 As error can only apply the '#' flag once to give 0 and 1 for V, there
1484 is %D which doesn't print the throw specs, and %F which does. */
1487 dump_function_decl (cxx_pretty_printer
*pp
, tree t
, int flags
)
1491 tree cname
= NULL_TREE
;
1492 tree template_args
= NULL_TREE
;
1493 tree template_parms
= NULL_TREE
;
1494 int show_return
= flags
& TFF_RETURN_TYPE
|| flags
& TFF_DECL_SPECIFIERS
;
1495 int do_outer_scope
= ! (flags
& TFF_UNQUALIFIED_NAME
);
1499 flags
&= ~(TFF_UNQUALIFIED_NAME
| TFF_TEMPLATE_NAME
);
1500 if (TREE_CODE (t
) == TEMPLATE_DECL
)
1501 t
= DECL_TEMPLATE_RESULT (t
);
1503 /* Save the exceptions, in case t is a specialization and we are
1504 emitting an error about incompatible specifications. */
1505 exceptions
= TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t
));
1507 /* Likewise for the constexpr specifier, in case t is a specialization. */
1508 constexpr_p
= DECL_DECLARED_CONSTEXPR_P (t
);
1510 /* Pretty print template instantiations only. */
1511 if (DECL_USE_TEMPLATE (t
) && DECL_TEMPLATE_INFO (t
)
1512 && flag_pretty_templates
)
1516 template_args
= DECL_TI_ARGS (t
);
1517 tmpl
= most_general_template (t
);
1518 if (tmpl
&& TREE_CODE (tmpl
) == TEMPLATE_DECL
)
1520 template_parms
= DECL_TEMPLATE_PARMS (tmpl
);
1525 if (DECL_NAME (t
) && LAMBDA_FUNCTION_P (t
))
1526 return dump_lambda_function (pp
, t
, template_parms
, template_args
, flags
);
1528 fntype
= TREE_TYPE (t
);
1529 parmtypes
= FUNCTION_FIRST_USER_PARMTYPE (t
);
1531 if (DECL_CLASS_SCOPE_P (t
))
1532 cname
= DECL_CONTEXT (t
);
1533 /* This is for partially instantiated template methods. */
1534 else if (TREE_CODE (fntype
) == METHOD_TYPE
)
1535 cname
= TREE_TYPE (TREE_VALUE (parmtypes
));
1537 if (flags
& TFF_DECL_SPECIFIERS
)
1539 if (DECL_STATIC_FUNCTION_P (t
))
1540 pp_cxx_ws_string (pp
, "static");
1541 else if (DECL_VIRTUAL_P (t
))
1542 pp_cxx_ws_string (pp
, "virtual");
1546 if (DECL_DECLARED_CONCEPT_P (t
))
1547 pp_cxx_ws_string (pp
, "concept");
1549 pp_cxx_ws_string (pp
, "constexpr");
1553 /* Print the return type? */
1555 show_return
= !DECL_CONV_FN_P (t
) && !DECL_CONSTRUCTOR_P (t
)
1556 && !DECL_DESTRUCTOR_P (t
);
1559 tree ret
= fndecl_declared_return_type (t
);
1560 dump_type_prefix (pp
, ret
, flags
);
1563 /* Print the function name. */
1564 if (!do_outer_scope
)
1568 dump_type (pp
, cname
, flags
);
1569 pp_cxx_colon_colon (pp
);
1572 dump_scope (pp
, CP_DECL_CONTEXT (t
), flags
);
1574 dump_function_name (pp
, t
, flags
);
1576 if (!(flags
& TFF_NO_FUNCTION_ARGUMENTS
))
1578 dump_parameters (pp
, parmtypes
, flags
);
1580 if (TREE_CODE (fntype
) == METHOD_TYPE
)
1582 pp
->padding
= pp_before
;
1583 pp_cxx_cv_qualifier_seq (pp
, class_of_this_parm (fntype
));
1584 dump_ref_qualifier (pp
, fntype
, flags
);
1587 if (tx_safe_fn_type_p (fntype
))
1589 pp
->padding
= pp_before
;
1590 pp_cxx_ws_string (pp
, "transaction_safe");
1593 if (flags
& TFF_EXCEPTION_SPECIFICATION
)
1595 pp
->padding
= pp_before
;
1596 dump_exception_spec (pp
, exceptions
, flags
);
1600 dump_type_suffix (pp
, TREE_TYPE (fntype
), flags
);
1603 if (tree ci
= get_constraints (t
))
1604 if (tree reqs
= CI_DECLARATOR_REQS (ci
))
1605 pp_cxx_requires_clause (pp
, reqs
);
1607 dump_substitution (pp
, t
, template_parms
, template_args
, flags
);
1609 else if (template_args
)
1611 bool need_comma
= false;
1613 pp_cxx_begin_template_argument_list (pp
);
1614 template_args
= INNERMOST_TEMPLATE_ARGS (template_args
);
1615 for (i
= 0; i
< TREE_VEC_LENGTH (template_args
); ++i
)
1617 tree arg
= TREE_VEC_ELT (template_args
, i
);
1619 pp_separate_with_comma (pp
);
1620 if (ARGUMENT_PACK_P (arg
))
1621 pp_cxx_left_brace (pp
);
1622 dump_template_argument (pp
, arg
, TFF_PLAIN_IDENTIFIER
);
1623 if (ARGUMENT_PACK_P (arg
))
1624 pp_cxx_right_brace (pp
);
1627 pp_cxx_end_template_argument_list (pp
);
1631 /* Print a parameter list. If this is for a member function, the
1632 member object ptr (and any other hidden args) should have
1633 already been removed. */
1636 dump_parameters (cxx_pretty_printer
*pp
, tree parmtypes
, int flags
)
1639 flags
&= ~TFF_SCOPE
;
1640 pp_cxx_left_paren (pp
);
1642 for (first
= 1; parmtypes
!= void_list_node
;
1643 parmtypes
= TREE_CHAIN (parmtypes
))
1646 pp_separate_with_comma (pp
);
1650 pp_cxx_ws_string (pp
, "...");
1654 dump_type (pp
, TREE_VALUE (parmtypes
), flags
);
1656 if ((flags
& TFF_FUNCTION_DEFAULT_ARGUMENTS
) && TREE_PURPOSE (parmtypes
))
1658 pp_cxx_whitespace (pp
);
1660 pp_cxx_whitespace (pp
);
1661 dump_expr (pp
, TREE_PURPOSE (parmtypes
), flags
| TFF_EXPR_IN_PARENS
);
1665 pp_cxx_right_paren (pp
);
1668 /* Print ref-qualifier of a FUNCTION_TYPE or METHOD_TYPE. FLAGS are ignored. */
1671 dump_ref_qualifier (cxx_pretty_printer
*pp
, tree t
, int flags ATTRIBUTE_UNUSED
)
1673 if (FUNCTION_REF_QUALIFIED (t
))
1675 pp
->padding
= pp_before
;
1676 if (FUNCTION_RVALUE_QUALIFIED (t
))
1677 pp_cxx_ws_string (pp
, "&&");
1679 pp_cxx_ws_string (pp
, "&");
1683 /* Print an exception specification. T is the exception specification. */
1686 dump_exception_spec (cxx_pretty_printer
*pp
, tree t
, int flags
)
1688 if (t
&& TREE_PURPOSE (t
))
1690 pp_cxx_ws_string (pp
, "noexcept");
1691 if (!integer_onep (TREE_PURPOSE (t
)))
1693 pp_cxx_whitespace (pp
);
1694 pp_cxx_left_paren (pp
);
1695 if (DEFERRED_NOEXCEPT_SPEC_P (t
))
1696 pp_cxx_ws_string (pp
, "<uninstantiated>");
1698 dump_expr (pp
, TREE_PURPOSE (t
), flags
);
1699 pp_cxx_right_paren (pp
);
1704 pp_cxx_ws_string (pp
, "throw");
1705 pp_cxx_whitespace (pp
);
1706 pp_cxx_left_paren (pp
);
1707 if (TREE_VALUE (t
) != NULL_TREE
)
1710 dump_type (pp
, TREE_VALUE (t
), flags
);
1714 pp_separate_with_comma (pp
);
1716 pp_cxx_right_paren (pp
);
1720 /* Handle the function name for a FUNCTION_DECL node, grokking operators
1721 and destructors properly. */
1724 dump_function_name (cxx_pretty_printer
*pp
, tree t
, int flags
)
1726 tree name
= DECL_NAME (t
);
1728 /* We can get here with a decl that was synthesized by language-
1729 independent machinery (e.g. coverage.c) in which case it won't
1730 have a lang_specific structure attached and DECL_CONSTRUCTOR_P
1731 will crash. In this case it is safe just to print out the
1733 if (!DECL_LANG_SPECIFIC (t
))
1735 pp_cxx_tree_identifier (pp
, name
);
1739 if (TREE_CODE (t
) == TEMPLATE_DECL
)
1740 t
= DECL_TEMPLATE_RESULT (t
);
1742 /* Don't let the user see __comp_ctor et al. */
1743 if (DECL_CONSTRUCTOR_P (t
)
1744 || DECL_DESTRUCTOR_P (t
))
1746 if (LAMBDA_TYPE_P (DECL_CONTEXT (t
)))
1747 name
= get_identifier ("<lambda>");
1748 else if (TYPE_ANONYMOUS_P (DECL_CONTEXT (t
)))
1749 name
= get_identifier ("<constructor>");
1751 name
= constructor_name (DECL_CONTEXT (t
));
1754 if (DECL_DESTRUCTOR_P (t
))
1756 pp_cxx_complement (pp
);
1757 dump_decl (pp
, name
, TFF_PLAIN_IDENTIFIER
);
1759 else if (DECL_CONV_FN_P (t
))
1761 /* This cannot use the hack that the operator's return
1762 type is stashed off of its name because it may be
1763 used for error reporting. In the case of conflicting
1764 declarations, both will have the same name, yet
1765 the types will be different, hence the TREE_TYPE field
1766 of the first name will be clobbered by the second. */
1767 pp_cxx_ws_string (pp
, "operator");
1768 dump_type (pp
, TREE_TYPE (TREE_TYPE (t
)), flags
);
1770 else if (name
&& IDENTIFIER_OPNAME_P (name
))
1771 pp_cxx_tree_identifier (pp
, name
);
1772 else if (name
&& UDLIT_OPER_P (name
))
1773 pp_cxx_tree_identifier (pp
, name
);
1775 dump_decl (pp
, name
, flags
);
1777 if (DECL_TEMPLATE_INFO (t
)
1778 && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t
)
1779 && (TREE_CODE (DECL_TI_TEMPLATE (t
)) != TEMPLATE_DECL
1780 || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t
))))
1781 dump_template_parms (pp
, DECL_TEMPLATE_INFO (t
), !DECL_USE_TEMPLATE (t
),
1785 /* Dump the template parameters from the template info INFO under control of
1786 FLAGS. PRIMARY indicates whether this is a primary template decl, or
1787 specialization (partial or complete). For partial specializations we show
1788 the specialized parameter values. For a primary template we show no
1792 dump_template_parms (cxx_pretty_printer
*pp
, tree info
,
1793 int primary
, int flags
)
1795 tree args
= info
? TI_ARGS (info
) : NULL_TREE
;
1797 if (primary
&& flags
& TFF_TEMPLATE_NAME
)
1799 flags
&= ~(TFF_CLASS_KEY_OR_ENUM
| TFF_TEMPLATE_NAME
);
1800 pp_cxx_begin_template_argument_list (pp
);
1802 /* Be careful only to print things when we have them, so as not
1803 to crash producing error messages. */
1804 if (args
&& !primary
)
1807 len
= get_non_default_template_args_count (args
, flags
);
1809 args
= INNERMOST_TEMPLATE_ARGS (args
);
1810 for (ix
= 0; ix
!= len
; ix
++)
1812 tree arg
= TREE_VEC_ELT (args
, ix
);
1814 /* Only print a comma if we know there is an argument coming. In
1815 the case of an empty template argument pack, no actual
1816 argument will be printed. */
1818 && (!ARGUMENT_PACK_P (arg
)
1819 || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg
)) > 0))
1820 pp_separate_with_comma (pp
);
1823 pp_string (pp
, M_("<template parameter error>"));
1825 dump_template_argument (pp
, arg
, flags
);
1830 tree tpl
= TI_TEMPLATE (info
);
1831 tree parms
= DECL_TEMPLATE_PARMS (tpl
);
1834 parms
= TREE_CODE (parms
) == TREE_LIST
? TREE_VALUE (parms
) : NULL_TREE
;
1835 len
= parms
? TREE_VEC_LENGTH (parms
) : 0;
1837 for (ix
= 0; ix
!= len
; ix
++)
1841 if (TREE_VEC_ELT (parms
, ix
) == error_mark_node
)
1843 pp_string (pp
, M_("<template parameter error>"));
1847 parm
= TREE_VALUE (TREE_VEC_ELT (parms
, ix
));
1850 pp_separate_with_comma (pp
);
1852 dump_decl (pp
, parm
, flags
& ~TFF_DECL_SPECIFIERS
);
1855 pp_cxx_end_template_argument_list (pp
);
1858 /* Print out the arguments of CALL_EXPR T as a parenthesized list using
1859 flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
1862 dump_call_expr_args (cxx_pretty_printer
*pp
, tree t
, int flags
, bool skipfirst
)
1865 call_expr_arg_iterator iter
;
1867 pp_cxx_left_paren (pp
);
1868 FOR_EACH_CALL_EXPR_ARG (arg
, iter
, t
)
1874 dump_expr (pp
, arg
, flags
| TFF_EXPR_IN_PARENS
);
1875 if (more_call_expr_args_p (&iter
))
1876 pp_separate_with_comma (pp
);
1879 pp_cxx_right_paren (pp
);
1882 /* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
1883 using flags FLAGS. Skip over the first argument if SKIPFIRST is
1887 dump_aggr_init_expr_args (cxx_pretty_printer
*pp
, tree t
, int flags
,
1891 aggr_init_expr_arg_iterator iter
;
1893 pp_cxx_left_paren (pp
);
1894 FOR_EACH_AGGR_INIT_EXPR_ARG (arg
, iter
, t
)
1900 dump_expr (pp
, arg
, flags
| TFF_EXPR_IN_PARENS
);
1901 if (more_aggr_init_expr_args_p (&iter
))
1902 pp_separate_with_comma (pp
);
1905 pp_cxx_right_paren (pp
);
1908 /* Print out a list of initializers (subr of dump_expr). */
1911 dump_expr_list (cxx_pretty_printer
*pp
, tree l
, int flags
)
1915 dump_expr (pp
, TREE_VALUE (l
), flags
| TFF_EXPR_IN_PARENS
);
1918 pp_separate_with_comma (pp
);
1922 /* Print out a vector of initializers (subr of dump_expr). */
1925 dump_expr_init_vec (cxx_pretty_printer
*pp
, vec
<constructor_elt
, va_gc
> *v
,
1928 unsigned HOST_WIDE_INT idx
;
1931 FOR_EACH_CONSTRUCTOR_VALUE (v
, idx
, value
)
1933 dump_expr (pp
, value
, flags
| TFF_EXPR_IN_PARENS
);
1934 if (idx
!= v
->length () - 1)
1935 pp_separate_with_comma (pp
);
1940 /* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
1941 function. Resolve it to a close relative -- in the sense of static
1942 type -- variant being overridden. That is close to what was written in
1943 the source code. Subroutine of dump_expr. */
1946 resolve_virtual_fun_from_obj_type_ref (tree ref
)
1948 tree obj_type
= TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref
));
1949 HOST_WIDE_INT index
= tree_to_uhwi (OBJ_TYPE_REF_TOKEN (ref
));
1950 tree fun
= BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type
)));
1953 fun
= TREE_CHAIN (fun
);
1954 index
-= (TARGET_VTABLE_USES_DESCRIPTORS
1955 ? TARGET_VTABLE_USES_DESCRIPTORS
: 1);
1961 /* Print out an expression E under control of FLAGS. */
1964 dump_expr (cxx_pretty_printer
*pp
, tree t
, int flags
)
1971 if (STATEMENT_CLASS_P (t
))
1973 pp_cxx_ws_string (pp
, M_("<statement>"));
1977 switch (TREE_CODE (t
))
1985 case NAMESPACE_DECL
:
1989 case IDENTIFIER_NODE
:
1990 dump_decl (pp
, t
, ((flags
& ~(TFF_DECL_SPECIFIERS
|TFF_RETURN_TYPE
1991 |TFF_TEMPLATE_HEADER
))
1992 | TFF_NO_FUNCTION_ARGUMENTS
));
1996 if (SSA_NAME_VAR (t
)
1997 && !DECL_ARTIFICIAL (SSA_NAME_VAR (t
)))
1998 dump_expr (pp
, SSA_NAME_VAR (t
), flags
);
2000 pp_cxx_ws_string (pp
, M_("<unknown>"));
2011 case USERDEF_LITERAL
:
2012 pp_cxx_userdef_literal (pp
, t
);
2016 /* While waiting for caret diagnostics, avoid printing
2017 __cxa_allocate_exception, __cxa_throw, and the like. */
2018 pp_cxx_ws_string (pp
, M_("<throw-expression>"));
2023 dump_type (pp
, PTRMEM_CST_CLASS (t
), flags
);
2024 pp_cxx_colon_colon (pp
);
2025 pp_cxx_tree_identifier (pp
, DECL_NAME (PTRMEM_CST_MEMBER (t
)));
2029 pp_cxx_left_paren (pp
);
2030 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2031 pp_separate_with_comma (pp
);
2032 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2033 pp_cxx_right_paren (pp
);
2037 pp_cxx_left_paren (pp
);
2038 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2039 pp_string (pp
, " ? ");
2040 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2041 pp_string (pp
, " : ");
2042 dump_expr (pp
, TREE_OPERAND (t
, 2), flags
| TFF_EXPR_IN_PARENS
);
2043 pp_cxx_right_paren (pp
);
2047 if (TREE_HAS_CONSTRUCTOR (t
))
2049 pp_cxx_ws_string (pp
, "new");
2050 pp_cxx_whitespace (pp
);
2051 dump_type (pp
, TREE_TYPE (TREE_TYPE (t
)), flags
);
2054 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2057 case AGGR_INIT_EXPR
:
2059 tree fn
= NULL_TREE
;
2061 if (TREE_CODE (AGGR_INIT_EXPR_FN (t
)) == ADDR_EXPR
)
2062 fn
= TREE_OPERAND (AGGR_INIT_EXPR_FN (t
), 0);
2064 if (fn
&& TREE_CODE (fn
) == FUNCTION_DECL
)
2066 if (DECL_CONSTRUCTOR_P (fn
))
2067 dump_type (pp
, DECL_CONTEXT (fn
), flags
);
2069 dump_decl (pp
, fn
, 0);
2072 dump_expr (pp
, AGGR_INIT_EXPR_FN (t
), 0);
2074 dump_aggr_init_expr_args (pp
, t
, flags
, true);
2079 tree fn
= CALL_EXPR_FN (t
);
2080 bool skipfirst
= false;
2082 /* Deal with internal functions. */
2083 if (fn
== NULL_TREE
)
2085 pp_string (pp
, internal_fn_name (CALL_EXPR_IFN (t
)));
2086 dump_call_expr_args (pp
, t
, flags
, skipfirst
);
2090 if (TREE_CODE (fn
) == ADDR_EXPR
)
2091 fn
= TREE_OPERAND (fn
, 0);
2093 /* Nobody is interested in seeing the guts of vcalls. */
2094 if (TREE_CODE (fn
) == OBJ_TYPE_REF
)
2095 fn
= resolve_virtual_fun_from_obj_type_ref (fn
);
2097 if (TREE_TYPE (fn
) != NULL_TREE
2098 && NEXT_CODE (fn
) == METHOD_TYPE
2099 && call_expr_nargs (t
))
2101 tree ob
= CALL_EXPR_ARG (t
, 0);
2102 if (TREE_CODE (ob
) == ADDR_EXPR
)
2104 dump_expr (pp
, TREE_OPERAND (ob
, 0),
2105 flags
| TFF_EXPR_IN_PARENS
);
2108 else if (TREE_CODE (ob
) != PARM_DECL
2109 || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob
)), "this"))
2111 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2116 if (flag_sanitize
& SANITIZE_UNDEFINED
2117 && is_ubsan_builtin_p (fn
))
2119 pp_string (cxx_pp
, M_("<ubsan routine call>"));
2122 dump_expr (pp
, fn
, flags
| TFF_EXPR_IN_PARENS
);
2123 dump_call_expr_args (pp
, t
, flags
, skipfirst
);
2128 /* Note that this only works for G++ target exprs. If somebody
2129 builds a general TARGET_EXPR, there's no way to represent that
2130 it initializes anything other that the parameter slot for the
2131 default argument. Note we may have cleared out the first
2132 operand in expand_expr, so don't go killing ourselves. */
2133 if (TREE_OPERAND (t
, 1))
2134 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2137 case POINTER_PLUS_EXPR
:
2138 dump_binary_op (pp
, "+", t
, flags
);
2143 dump_binary_op (pp
, assignment_operator_name_info
[NOP_EXPR
].name
,
2150 case TRUNC_DIV_EXPR
:
2151 case TRUNC_MOD_EXPR
:
2159 case TRUTH_ANDIF_EXPR
:
2160 case TRUTH_ORIF_EXPR
:
2167 case EXACT_DIV_EXPR
:
2168 dump_binary_op (pp
, operator_name_info
[TREE_CODE (t
)].name
, t
, flags
);
2172 case FLOOR_DIV_EXPR
:
2173 case ROUND_DIV_EXPR
:
2175 dump_binary_op (pp
, "/", t
, flags
);
2179 case FLOOR_MOD_EXPR
:
2180 case ROUND_MOD_EXPR
:
2181 dump_binary_op (pp
, "%", t
, flags
);
2186 tree ob
= TREE_OPERAND (t
, 0);
2187 if (INDIRECT_REF_P (ob
))
2189 ob
= TREE_OPERAND (ob
, 0);
2190 if (TREE_CODE (ob
) != PARM_DECL
2192 && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob
)), "this")))
2194 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2195 if (TREE_CODE (TREE_TYPE (ob
)) == REFERENCE_TYPE
)
2203 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2206 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
& ~TFF_EXPR_IN_PARENS
);
2211 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2212 pp_cxx_left_bracket (pp
);
2213 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2214 pp_cxx_right_bracket (pp
);
2217 case ARRAY_NOTATION_REF
:
2218 dump_expr (pp
, ARRAY_NOTATION_ARRAY (t
), flags
| TFF_EXPR_IN_PARENS
);
2219 pp_cxx_left_bracket (pp
);
2220 dump_expr (pp
, ARRAY_NOTATION_START (t
), flags
| TFF_EXPR_IN_PARENS
);
2222 dump_expr (pp
, ARRAY_NOTATION_LENGTH (t
), flags
| TFF_EXPR_IN_PARENS
);
2224 dump_expr (pp
, ARRAY_NOTATION_STRIDE (t
), flags
| TFF_EXPR_IN_PARENS
);
2225 pp_cxx_right_bracket (pp
);
2228 case UNARY_PLUS_EXPR
:
2229 dump_unary_op (pp
, "+", t
, flags
);
2233 if (TREE_CODE (TREE_OPERAND (t
, 0)) == FUNCTION_DECL
2234 || TREE_CODE (TREE_OPERAND (t
, 0)) == STRING_CST
2235 /* An ADDR_EXPR can have reference type. In that case, we
2236 shouldn't print the `&' doing so indicates to the user
2237 that the expression has pointer type. */
2239 && TREE_CODE (TREE_TYPE (t
)) == REFERENCE_TYPE
))
2240 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2241 else if (TREE_CODE (TREE_OPERAND (t
, 0)) == LABEL_DECL
)
2242 dump_unary_op (pp
, "&&", t
, flags
);
2244 dump_unary_op (pp
, "&", t
, flags
);
2248 if (TREE_HAS_CONSTRUCTOR (t
))
2250 t
= TREE_OPERAND (t
, 0);
2251 gcc_assert (TREE_CODE (t
) == CALL_EXPR
);
2252 dump_expr (pp
, CALL_EXPR_FN (t
), flags
| TFF_EXPR_IN_PARENS
);
2253 dump_call_expr_args (pp
, t
, flags
, true);
2257 if (TREE_OPERAND (t
,0) != NULL_TREE
2258 && TREE_TYPE (TREE_OPERAND (t
, 0))
2259 && NEXT_CODE (TREE_OPERAND (t
, 0)) == REFERENCE_TYPE
)
2260 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2262 dump_unary_op (pp
, "*", t
, flags
);
2267 if (TREE_CODE (TREE_OPERAND (t
, 0)) == ADDR_EXPR
2268 && integer_zerop (TREE_OPERAND (t
, 1)))
2269 dump_expr (pp
, TREE_OPERAND (TREE_OPERAND (t
, 0), 0), flags
);
2273 if (!integer_zerop (TREE_OPERAND (t
, 1)))
2275 pp_cxx_left_paren (pp
);
2276 if (!integer_onep (TYPE_SIZE_UNIT
2277 (TREE_TYPE (TREE_TYPE (TREE_OPERAND (t
, 0))))))
2279 pp_cxx_left_paren (pp
);
2280 dump_type (pp
, ptr_type_node
, flags
);
2281 pp_cxx_right_paren (pp
);
2284 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2285 if (!integer_zerop (TREE_OPERAND (t
, 1)))
2287 pp_cxx_ws_string (pp
, "+");
2288 dump_expr (pp
, fold_convert (ssizetype
, TREE_OPERAND (t
, 1)),
2290 pp_cxx_right_paren (pp
);
2297 case TRUTH_NOT_EXPR
:
2298 case PREDECREMENT_EXPR
:
2299 case PREINCREMENT_EXPR
:
2300 dump_unary_op (pp
, operator_name_info
[TREE_CODE (t
)].name
, t
, flags
);
2303 case POSTDECREMENT_EXPR
:
2304 case POSTINCREMENT_EXPR
:
2305 pp_cxx_left_paren (pp
);
2306 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2307 pp_cxx_ws_string (pp
, operator_name_info
[TREE_CODE (t
)].name
);
2308 pp_cxx_right_paren (pp
);
2311 case NON_LVALUE_EXPR
:
2312 /* FIXME: This is a KLUDGE workaround for a parsing problem. There
2313 should be another level of INDIRECT_REF so that I don't have to do
2315 if (TREE_TYPE (t
) != NULL_TREE
&& NEXT_CODE (t
) == POINTER_TYPE
)
2317 tree next
= TREE_TYPE (TREE_TYPE (t
));
2319 while (TYPE_PTR_P (next
))
2320 next
= TREE_TYPE (next
);
2322 if (TREE_CODE (next
) == FUNCTION_TYPE
)
2324 if (flags
& TFF_EXPR_IN_PARENS
)
2325 pp_cxx_left_paren (pp
);
2327 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2328 if (flags
& TFF_EXPR_IN_PARENS
)
2329 pp_cxx_right_paren (pp
);
2332 /* Else fall through. */
2334 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2338 case IMPLICIT_CONV_EXPR
:
2339 case VIEW_CONVERT_EXPR
:
2341 tree op
= TREE_OPERAND (t
, 0);
2342 tree ttype
= TREE_TYPE (t
);
2343 tree optype
= TREE_TYPE (op
);
2345 if (TREE_CODE (ttype
) != TREE_CODE (optype
)
2346 && POINTER_TYPE_P (ttype
)
2347 && POINTER_TYPE_P (optype
)
2348 && same_type_p (TREE_TYPE (optype
),
2351 if (TREE_CODE (ttype
) == REFERENCE_TYPE
)
2354 if (TREE_CODE (op
) == ADDR_EXPR
)
2355 dump_expr (pp
, TREE_OPERAND (op
, 0), flags
);
2357 dump_unary_op (pp
, "*", t
, flags
);
2360 dump_unary_op (pp
, "&", t
, flags
);
2362 else if (!same_type_p (TREE_TYPE (op
), TREE_TYPE (t
)))
2364 /* It is a cast, but we cannot tell whether it is a
2365 reinterpret or static cast. Use the C style notation. */
2366 if (flags
& TFF_EXPR_IN_PARENS
)
2367 pp_cxx_left_paren (pp
);
2368 pp_cxx_left_paren (pp
);
2369 dump_type (pp
, TREE_TYPE (t
), flags
);
2370 pp_cxx_right_paren (pp
);
2371 dump_expr (pp
, op
, flags
| TFF_EXPR_IN_PARENS
);
2372 if (flags
& TFF_EXPR_IN_PARENS
)
2373 pp_cxx_right_paren (pp
);
2376 dump_expr (pp
, op
, flags
);
2381 if (TREE_TYPE (t
) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t
)))
2383 tree idx
= build_ptrmemfunc_access_expr (t
, pfn_identifier
);
2385 if (integer_zerop (idx
))
2387 /* A NULL pointer-to-member constant. */
2388 pp_cxx_left_paren (pp
);
2389 pp_cxx_left_paren (pp
);
2390 dump_type (pp
, TREE_TYPE (t
), flags
);
2391 pp_cxx_right_paren (pp
);
2392 pp_character (pp
, '0');
2393 pp_cxx_right_paren (pp
);
2396 else if (tree_fits_shwi_p (idx
))
2399 unsigned HOST_WIDE_INT n
;
2401 t
= TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t
)));
2402 t
= TYPE_METHOD_BASETYPE (t
);
2403 virtuals
= BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t
)));
2405 n
= tree_to_shwi (idx
);
2407 /* Map vtable index back one, to allow for the null pointer to
2411 while (n
> 0 && virtuals
)
2414 virtuals
= TREE_CHAIN (virtuals
);
2418 dump_expr (pp
, BV_FN (virtuals
),
2419 flags
| TFF_EXPR_IN_PARENS
);
2424 if (TREE_TYPE (t
) && LAMBDA_TYPE_P (TREE_TYPE (t
)))
2425 pp_string (pp
, "<lambda closure object>");
2426 if (TREE_TYPE (t
) && EMPTY_CONSTRUCTOR_P (t
))
2428 dump_type (pp
, TREE_TYPE (t
), 0);
2429 pp_cxx_left_paren (pp
);
2430 pp_cxx_right_paren (pp
);
2434 if (!BRACE_ENCLOSED_INITIALIZER_P (t
))
2435 dump_type (pp
, TREE_TYPE (t
), 0);
2436 pp_cxx_left_brace (pp
);
2437 dump_expr_init_vec (pp
, CONSTRUCTOR_ELTS (t
), flags
);
2438 pp_cxx_right_brace (pp
);
2445 tree ob
= TREE_OPERAND (t
, 0);
2446 if (is_dummy_object (ob
))
2448 t
= TREE_OPERAND (t
, 1);
2449 if (TREE_CODE (t
) == FUNCTION_DECL
)
2451 dump_expr (pp
, t
, flags
| TFF_EXPR_IN_PARENS
);
2452 else if (BASELINK_P (t
))
2453 dump_expr (pp
, OVL_CURRENT (BASELINK_FUNCTIONS (t
)),
2454 flags
| TFF_EXPR_IN_PARENS
);
2456 dump_decl (pp
, t
, flags
);
2460 if (INDIRECT_REF_P (ob
))
2462 dump_expr (pp
, TREE_OPERAND (ob
, 0), flags
| TFF_EXPR_IN_PARENS
);
2468 dump_expr (pp
, ob
, flags
| TFF_EXPR_IN_PARENS
);
2472 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2477 case TEMPLATE_PARM_INDEX
:
2478 dump_decl (pp
, TEMPLATE_PARM_DECL (t
), flags
& ~TFF_DECL_SPECIFIERS
);
2482 if (TREE_OPERAND (t
, 0) == NULL_TREE
2483 || TREE_CHAIN (TREE_OPERAND (t
, 0)))
2485 dump_type (pp
, TREE_TYPE (t
), flags
);
2486 pp_cxx_left_paren (pp
);
2487 dump_expr_list (pp
, TREE_OPERAND (t
, 0), flags
);
2488 pp_cxx_right_paren (pp
);
2492 pp_cxx_left_paren (pp
);
2493 dump_type (pp
, TREE_TYPE (t
), flags
);
2494 pp_cxx_right_paren (pp
);
2495 pp_cxx_left_paren (pp
);
2496 dump_expr_list (pp
, TREE_OPERAND (t
, 0), flags
);
2497 pp_cxx_right_paren (pp
);
2501 case STATIC_CAST_EXPR
:
2502 pp_cxx_ws_string (pp
, "static_cast");
2504 case REINTERPRET_CAST_EXPR
:
2505 pp_cxx_ws_string (pp
, "reinterpret_cast");
2507 case CONST_CAST_EXPR
:
2508 pp_cxx_ws_string (pp
, "const_cast");
2510 case DYNAMIC_CAST_EXPR
:
2511 pp_cxx_ws_string (pp
, "dynamic_cast");
2513 pp_cxx_begin_template_argument_list (pp
);
2514 dump_type (pp
, TREE_TYPE (t
), flags
);
2515 pp_cxx_end_template_argument_list (pp
);
2516 pp_cxx_left_paren (pp
);
2517 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2518 pp_cxx_right_paren (pp
);
2522 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2528 if (TREE_CODE (t
) == SIZEOF_EXPR
)
2529 pp_cxx_ws_string (pp
, "sizeof");
2532 gcc_assert (TREE_CODE (t
) == ALIGNOF_EXPR
);
2533 pp_cxx_ws_string (pp
, "__alignof__");
2535 op
= TREE_OPERAND (t
, 0);
2536 if (PACK_EXPANSION_P (op
))
2538 pp_string (pp
, "...");
2539 op
= PACK_EXPANSION_PATTERN (op
);
2541 pp_cxx_whitespace (pp
);
2542 pp_cxx_left_paren (pp
);
2543 if (TREE_CODE (t
) == SIZEOF_EXPR
&& SIZEOF_EXPR_TYPE_P (t
))
2544 dump_type (pp
, TREE_TYPE (op
), flags
);
2545 else if (TYPE_P (TREE_OPERAND (t
, 0)))
2546 dump_type (pp
, op
, flags
);
2548 dump_expr (pp
, op
, flags
);
2549 pp_cxx_right_paren (pp
);
2552 case AT_ENCODE_EXPR
:
2553 pp_cxx_ws_string (pp
, "@encode");
2554 pp_cxx_whitespace (pp
);
2555 pp_cxx_left_paren (pp
);
2556 dump_type (pp
, TREE_OPERAND (t
, 0), flags
);
2557 pp_cxx_right_paren (pp
);
2561 pp_cxx_ws_string (pp
, "noexcept");
2562 pp_cxx_whitespace (pp
);
2563 pp_cxx_left_paren (pp
);
2564 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2565 pp_cxx_right_paren (pp
);
2570 pp_cxx_ws_string (pp
, operator_name_info
[TREE_CODE (t
)].name
);
2571 pp_cxx_whitespace (pp
);
2572 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2576 pp_string (pp
, M_("<unparsed>"));
2579 case TRY_CATCH_EXPR
:
2580 case WITH_CLEANUP_EXPR
:
2581 case CLEANUP_POINT_EXPR
:
2582 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2585 case PSEUDO_DTOR_EXPR
:
2586 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2588 if (TREE_OPERAND (t
, 1))
2590 dump_type (pp
, TREE_OPERAND (t
, 1), flags
);
2591 pp_cxx_colon_colon (pp
);
2593 pp_cxx_complement (pp
);
2594 dump_type (pp
, TREE_OPERAND (t
, 2), flags
);
2597 case TEMPLATE_ID_EXPR
:
2598 dump_decl (pp
, t
, flags
);
2604 case STATEMENT_LIST
:
2605 /* We don't yet have a way of dumping statements in a
2606 human-readable format. */
2607 pp_string (pp
, "({...})");
2611 pp_string (pp
, "while (1) { ");
2612 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2613 pp_cxx_right_brace (pp
);
2617 pp_string (pp
, "if (");
2618 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2619 pp_string (pp
, ") break; ");
2623 dump_expr (pp
, BASELINK_FUNCTIONS (t
), flags
& ~TFF_EXPR_IN_PARENS
);
2626 case EMPTY_CLASS_EXPR
:
2627 dump_type (pp
, TREE_TYPE (t
), flags
);
2628 pp_cxx_left_paren (pp
);
2629 pp_cxx_right_paren (pp
);
2632 case NON_DEPENDENT_EXPR
:
2633 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
);
2636 case ARGUMENT_PACK_SELECT
:
2637 dump_template_argument (pp
, ARGUMENT_PACK_SELECT_FROM_PACK (t
), flags
);
2649 pp_type_specifier_seq (pp
, t
);
2653 /* We get here when we want to print a dependent type as an
2654 id-expression, without any disambiguator decoration. */
2655 pp
->id_expression (t
);
2658 case TEMPLATE_TYPE_PARM
:
2659 case TEMPLATE_TEMPLATE_PARM
:
2660 case BOUND_TEMPLATE_TEMPLATE_PARM
:
2661 dump_type (pp
, t
, flags
);
2665 pp_cxx_trait_expression (pp
, t
);
2669 pp_cxx_va_arg_expression (pp
, t
);
2673 pp_cxx_offsetof_expression (pp
, t
);
2677 dump_decl (pp
, t
, flags
);
2680 case EXPR_PACK_EXPANSION
:
2681 case UNARY_LEFT_FOLD_EXPR
:
2682 case UNARY_RIGHT_FOLD_EXPR
:
2683 case BINARY_LEFT_FOLD_EXPR
:
2684 case BINARY_RIGHT_FOLD_EXPR
:
2691 case VEC_DELETE_EXPR
:
2697 case UNORDERED_EXPR
:
2707 case FIX_TRUNC_EXPR
:
2712 case TRUTH_AND_EXPR
:
2714 case TRUTH_XOR_EXPR
:
2715 if (flags
& TFF_EXPR_IN_PARENS
)
2716 pp_cxx_left_paren (pp
);
2718 if (flags
& TFF_EXPR_IN_PARENS
)
2719 pp_cxx_right_paren (pp
);
2723 dump_expr (pp
, resolve_virtual_fun_from_obj_type_ref (t
), flags
);
2727 pp_string (pp
, M_("<lambda>"));
2731 pp_cxx_left_paren (pp
);
2732 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2733 pp_cxx_right_paren (pp
);
2737 pp_cxx_requires_expr (cxx_pp
, t
);
2741 pp_cxx_simple_requirement (cxx_pp
, t
);
2745 pp_cxx_type_requirement (cxx_pp
, t
);
2749 pp_cxx_compound_requirement (cxx_pp
, t
);
2753 pp_cxx_nested_requirement (cxx_pp
, t
);
2766 pp_cxx_constraint (cxx_pp
, t
);
2769 case PLACEHOLDER_EXPR
:
2770 pp_string (pp
, M_("*this"));
2773 /* This list is incomplete, but should suffice for now.
2774 It is very important that `sorry' does not call
2775 `report_error_function'. That could cause an infinite loop. */
2777 pp_unsupported_tree (pp
, t
);
2778 /* fall through to ERROR_MARK... */
2780 pp_string (pp
, M_("<expression error>"));
2786 dump_binary_op (cxx_pretty_printer
*pp
, const char *opstring
, tree t
,
2789 pp_cxx_left_paren (pp
);
2790 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
| TFF_EXPR_IN_PARENS
);
2791 pp_cxx_whitespace (pp
);
2793 pp_cxx_ws_string (pp
, opstring
);
2795 pp_string (pp
, M_("<unknown operator>"));
2796 pp_cxx_whitespace (pp
);
2797 dump_expr (pp
, TREE_OPERAND (t
, 1), flags
| TFF_EXPR_IN_PARENS
);
2798 pp_cxx_right_paren (pp
);
2802 dump_unary_op (cxx_pretty_printer
*pp
, const char *opstring
, tree t
, int flags
)
2804 if (flags
& TFF_EXPR_IN_PARENS
)
2805 pp_cxx_left_paren (pp
);
2806 pp_cxx_ws_string (pp
, opstring
);
2807 dump_expr (pp
, TREE_OPERAND (t
, 0), flags
& ~TFF_EXPR_IN_PARENS
);
2808 if (flags
& TFF_EXPR_IN_PARENS
)
2809 pp_cxx_right_paren (pp
);
2813 reinit_cxx_pp (void)
2815 pp_clear_output_area (cxx_pp
);
2816 cxx_pp
->padding
= pp_none
;
2817 pp_indentation (cxx_pp
) = 0;
2818 pp_needs_newline (cxx_pp
) = false;
2819 cxx_pp
->enclosing_scope
= current_function_decl
;
2822 /* Same as pp_formatted_text, except the return string is a separate
2823 copy and has a GGC storage duration, e.g. an indefinite lifetime. */
2826 pp_ggc_formatted_text (pretty_printer
*pp
)
2828 return ggc_strdup (pp_formatted_text (pp
));
2831 /* Exported interface to stringifying types, exprs and decls under TFF_*
2835 type_as_string (tree typ
, int flags
)
2838 pp_translate_identifiers (cxx_pp
) = false;
2839 dump_type (cxx_pp
, typ
, flags
);
2840 return pp_ggc_formatted_text (cxx_pp
);
2844 type_as_string_translate (tree typ
, int flags
)
2847 dump_type (cxx_pp
, typ
, flags
);
2848 return pp_ggc_formatted_text (cxx_pp
);
2852 expr_as_string (tree decl
, int flags
)
2855 pp_translate_identifiers (cxx_pp
) = false;
2856 dump_expr (cxx_pp
, decl
, flags
);
2857 return pp_ggc_formatted_text (cxx_pp
);
2860 /* Wrap decl_as_string with options appropriate for dwarf. */
2863 decl_as_dwarf_string (tree decl
, int flags
)
2866 /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
2867 here will be adequate to get the desired behavior. */
2868 cxx_pp
->flags
|= pp_c_flag_gnu_v3
;
2869 name
= decl_as_string (decl
, flags
);
2870 /* Subsequent calls to the pretty printer shouldn't use this style. */
2871 cxx_pp
->flags
&= ~pp_c_flag_gnu_v3
;
2876 decl_as_string (tree decl
, int flags
)
2879 pp_translate_identifiers (cxx_pp
) = false;
2880 dump_decl (cxx_pp
, decl
, flags
);
2881 return pp_ggc_formatted_text (cxx_pp
);
2885 decl_as_string_translate (tree decl
, int flags
)
2888 dump_decl (cxx_pp
, decl
, flags
);
2889 return pp_ggc_formatted_text (cxx_pp
);
2892 /* Wrap lang_decl_name with options appropriate for dwarf. */
2895 lang_decl_dwarf_name (tree decl
, int v
, bool translate
)
2898 /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
2899 here will be adequate to get the desired behavior. */
2900 cxx_pp
->flags
|= pp_c_flag_gnu_v3
;
2901 name
= lang_decl_name (decl
, v
, translate
);
2902 /* Subsequent calls to the pretty printer shouldn't use this style. */
2903 cxx_pp
->flags
&= ~pp_c_flag_gnu_v3
;
2907 /* Generate the three forms of printable names for cxx_printable_name. */
2910 lang_decl_name (tree decl
, int v
, bool translate
)
2914 ? decl_as_string_translate (decl
, TFF_DECL_SPECIFIERS
)
2915 : decl_as_string (decl
, TFF_DECL_SPECIFIERS
));
2918 pp_translate_identifiers (cxx_pp
) = translate
;
2920 && (DECL_CLASS_SCOPE_P (decl
)
2921 || (DECL_NAMESPACE_SCOPE_P (decl
)
2922 && CP_DECL_CONTEXT (decl
) != global_namespace
)))
2924 dump_type (cxx_pp
, CP_DECL_CONTEXT (decl
), TFF_PLAIN_IDENTIFIER
);
2925 pp_cxx_colon_colon (cxx_pp
);
2928 if (TREE_CODE (decl
) == FUNCTION_DECL
)
2929 dump_function_name (cxx_pp
, decl
, TFF_PLAIN_IDENTIFIER
);
2930 else if ((DECL_NAME (decl
) == NULL_TREE
)
2931 && TREE_CODE (decl
) == NAMESPACE_DECL
)
2932 dump_decl (cxx_pp
, decl
, TFF_PLAIN_IDENTIFIER
| TFF_UNQUALIFIED_NAME
);
2934 dump_decl (cxx_pp
, DECL_NAME (decl
), TFF_PLAIN_IDENTIFIER
);
2936 return pp_ggc_formatted_text (cxx_pp
);
2939 /* Return the location of a tree passed to %+ formats. */
2942 location_of (tree t
)
2946 t
= TYPE_MAIN_DECL (t
);
2948 return input_location
;
2950 else if (TREE_CODE (t
) == OVERLOAD
)
2951 t
= OVL_FUNCTION (t
);
2954 return DECL_SOURCE_LOCATION (t
);
2955 return EXPR_LOC_OR_LOC (t
, input_location
);
2958 /* Now the interfaces from error et al to dump_type et al. Each takes an
2959 on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
2963 decl_to_string (tree decl
, int verbose
)
2967 if (TREE_CODE (decl
) == TYPE_DECL
|| TREE_CODE (decl
) == RECORD_TYPE
2968 || TREE_CODE (decl
) == UNION_TYPE
|| TREE_CODE (decl
) == ENUMERAL_TYPE
)
2969 flags
= TFF_CLASS_KEY_OR_ENUM
;
2971 flags
|= TFF_DECL_SPECIFIERS
;
2972 else if (TREE_CODE (decl
) == FUNCTION_DECL
)
2973 flags
|= TFF_DECL_SPECIFIERS
| TFF_RETURN_TYPE
;
2974 flags
|= TFF_TEMPLATE_HEADER
;
2977 dump_decl (cxx_pp
, decl
, flags
);
2978 return pp_ggc_formatted_text (cxx_pp
);
2982 expr_to_string (tree decl
)
2985 dump_expr (cxx_pp
, decl
, 0);
2986 return pp_ggc_formatted_text (cxx_pp
);
2990 fndecl_to_string (tree fndecl
, int verbose
)
2994 flags
= TFF_EXCEPTION_SPECIFICATION
| TFF_DECL_SPECIFIERS
2995 | TFF_TEMPLATE_HEADER
;
2997 flags
|= TFF_FUNCTION_DEFAULT_ARGUMENTS
;
2999 dump_decl (cxx_pp
, fndecl
, flags
);
3000 return pp_ggc_formatted_text (cxx_pp
);
3005 code_to_string (enum tree_code c
)
3007 return get_tree_code_name (c
);
3011 language_to_string (enum languages c
)
3018 case lang_cplusplus
:
3030 /* Return the proper printed version of a parameter to a C++ function. */
3033 parm_to_string (int p
)
3037 pp_string (cxx_pp
, "'this'");
3039 pp_decimal_int (cxx_pp
, p
+ 1);
3040 return pp_ggc_formatted_text (cxx_pp
);
3044 op_to_string (enum tree_code p
)
3046 tree id
= operator_name_info
[p
].identifier
;
3047 return id
? IDENTIFIER_POINTER (id
) : M_("<unknown>");
3051 type_to_string (tree typ
, int verbose
)
3055 flags
|= TFF_CLASS_KEY_OR_ENUM
;
3056 flags
|= TFF_TEMPLATE_HEADER
;
3059 dump_type (cxx_pp
, typ
, flags
);
3060 /* If we're printing a type that involves typedefs, also print the
3061 stripped version. But sometimes the stripped version looks
3062 exactly the same, so we don't want it after all. To avoid printing
3063 it in that case, we play ugly obstack games. */
3064 if (typ
&& TYPE_P (typ
) && typ
!= TYPE_CANONICAL (typ
)
3065 && !uses_template_parms (typ
))
3067 int aka_start
, aka_len
; char *p
;
3068 struct obstack
*ob
= pp_buffer (cxx_pp
)->obstack
;
3069 /* Remember the end of the initial dump. */
3070 int len
= obstack_object_size (ob
);
3071 tree aka
= strip_typedefs (typ
);
3072 pp_string (cxx_pp
, " {aka");
3073 pp_cxx_whitespace (cxx_pp
);
3074 /* And remember the start of the aka dump. */
3075 aka_start
= obstack_object_size (ob
);
3076 dump_type (cxx_pp
, aka
, flags
);
3077 aka_len
= obstack_object_size (ob
) - aka_start
;
3078 pp_right_brace (cxx_pp
);
3079 p
= (char*)obstack_base (ob
);
3080 /* If they are identical, cut off the aka with a NUL. */
3081 if (len
== aka_len
&& memcmp (p
, p
+aka_start
, len
) == 0)
3084 return pp_ggc_formatted_text (cxx_pp
);
3088 assop_to_string (enum tree_code p
)
3090 tree id
= assignment_operator_name_info
[(int) p
].identifier
;
3091 return id
? IDENTIFIER_POINTER (id
) : M_("{unknown}");
3095 args_to_string (tree p
, int verbose
)
3099 flags
|= TFF_CLASS_KEY_OR_ENUM
;
3104 if (TYPE_P (TREE_VALUE (p
)))
3105 return type_as_string_translate (p
, flags
);
3108 for (; p
; p
= TREE_CHAIN (p
))
3110 if (TREE_VALUE (p
) == null_node
)
3111 pp_cxx_ws_string (cxx_pp
, "NULL");
3113 dump_type (cxx_pp
, error_type (TREE_VALUE (p
)), flags
);
3115 pp_separate_with_comma (cxx_pp
);
3117 return pp_ggc_formatted_text (cxx_pp
);
3120 /* Pretty-print a deduction substitution (from deduction_tsubst_fntype). P
3121 is a TREE_LIST with purpose the TEMPLATE_DECL, value the template
3125 subst_to_string (tree p
)
3127 tree decl
= TREE_PURPOSE (p
);
3128 tree targs
= TREE_VALUE (p
);
3129 tree tparms
= DECL_TEMPLATE_PARMS (decl
);
3130 int flags
= (TFF_DECL_SPECIFIERS
|TFF_TEMPLATE_HEADER
3131 |TFF_NO_TEMPLATE_BINDINGS
);
3137 dump_template_decl (cxx_pp
, TREE_PURPOSE (p
), flags
);
3138 dump_substitution (cxx_pp
, NULL
, tparms
, targs
, /*flags=*/0);
3139 return pp_ggc_formatted_text (cxx_pp
);
3143 cv_to_string (tree p
, int v
)
3146 cxx_pp
->padding
= v
? pp_before
: pp_none
;
3147 pp_cxx_cv_qualifier_seq (cxx_pp
, p
);
3148 return pp_ggc_formatted_text (cxx_pp
);
3152 eh_spec_to_string (tree p
, int /*v*/)
3156 dump_exception_spec (cxx_pp
, p
, flags
);
3157 return pp_ggc_formatted_text (cxx_pp
);
3160 /* Langhook for print_error_function. */
3162 cxx_print_error_function (diagnostic_context
*context
, const char *file
,
3163 diagnostic_info
*diagnostic
)
3165 lhd_print_error_function (context
, file
, diagnostic
);
3166 pp_set_prefix (context
->printer
, file
);
3167 maybe_print_instantiation_context (context
);
3171 cp_diagnostic_starter (diagnostic_context
*context
,
3172 diagnostic_info
*diagnostic
)
3174 diagnostic_report_current_module (context
, diagnostic_location (diagnostic
));
3175 cp_print_error_function (context
, diagnostic
);
3176 maybe_print_instantiation_context (context
);
3177 maybe_print_constexpr_context (context
);
3178 pp_set_prefix (context
->printer
, diagnostic_build_prefix (context
,
3182 /* Print current function onto BUFFER, in the process of reporting
3183 a diagnostic message. Called from cp_diagnostic_starter. */
3185 cp_print_error_function (diagnostic_context
*context
,
3186 diagnostic_info
*diagnostic
)
3188 /* If we are in an instantiation context, current_function_decl is likely
3189 to be wrong, so just rely on print_instantiation_full_context. */
3190 if (current_instantiation ())
3192 if (diagnostic_last_function_changed (context
, diagnostic
))
3194 const char *old_prefix
= context
->printer
->prefix
;
3195 const char *file
= LOCATION_FILE (diagnostic_location (diagnostic
));
3196 tree abstract_origin
= diagnostic_abstract_origin (diagnostic
);
3197 char *new_prefix
= (file
&& abstract_origin
== NULL
)
3198 ? file_name_as_prefix (context
, file
) : NULL
;
3200 pp_set_prefix (context
->printer
, new_prefix
);
3202 if (current_function_decl
== NULL
)
3203 pp_string (context
->printer
, _("At global scope:"));
3208 if (abstract_origin
)
3210 ao
= BLOCK_ABSTRACT_ORIGIN (abstract_origin
);
3211 while (TREE_CODE (ao
) == BLOCK
3212 && BLOCK_ABSTRACT_ORIGIN (ao
)
3213 && BLOCK_ABSTRACT_ORIGIN (ao
) != ao
)
3214 ao
= BLOCK_ABSTRACT_ORIGIN (ao
);
3215 gcc_assert (TREE_CODE (ao
) == FUNCTION_DECL
);
3219 fndecl
= current_function_decl
;
3221 pp_printf (context
->printer
, function_category (fndecl
),
3222 cxx_printable_name_translate (fndecl
, 2));
3224 while (abstract_origin
)
3227 tree block
= abstract_origin
;
3229 locus
= &BLOCK_SOURCE_LOCATION (block
);
3231 block
= BLOCK_SUPERCONTEXT (block
);
3232 while (block
&& TREE_CODE (block
) == BLOCK
3233 && BLOCK_ABSTRACT_ORIGIN (block
))
3235 ao
= BLOCK_ABSTRACT_ORIGIN (block
);
3237 while (TREE_CODE (ao
) == BLOCK
3238 && BLOCK_ABSTRACT_ORIGIN (ao
)
3239 && BLOCK_ABSTRACT_ORIGIN (ao
) != ao
)
3240 ao
= BLOCK_ABSTRACT_ORIGIN (ao
);
3242 if (TREE_CODE (ao
) == FUNCTION_DECL
)
3247 else if (TREE_CODE (ao
) != BLOCK
)
3250 block
= BLOCK_SUPERCONTEXT (block
);
3253 abstract_origin
= block
;
3256 while (block
&& TREE_CODE (block
) == BLOCK
)
3257 block
= BLOCK_SUPERCONTEXT (block
);
3259 if (block
&& TREE_CODE (block
) == FUNCTION_DECL
)
3261 abstract_origin
= NULL
;
3265 expanded_location s
= expand_location (*locus
);
3266 pp_character (context
->printer
, ',');
3267 pp_newline (context
->printer
);
3270 if (context
->show_column
&& s
.column
!= 0)
3271 pp_printf (context
->printer
,
3272 _(" inlined from %qs at %r%s:%d:%d%R"),
3273 cxx_printable_name_translate (fndecl
, 2),
3274 "locus", s
.file
, s
.line
, s
.column
);
3276 pp_printf (context
->printer
,
3277 _(" inlined from %qs at %r%s:%d%R"),
3278 cxx_printable_name_translate (fndecl
, 2),
3279 "locus", s
.file
, s
.line
);
3283 pp_printf (context
->printer
, _(" inlined from %qs"),
3284 cxx_printable_name_translate (fndecl
, 2));
3287 pp_character (context
->printer
, ':');
3289 pp_newline (context
->printer
);
3291 diagnostic_set_last_function (context
, diagnostic
);
3292 pp_destroy_prefix (context
->printer
);
3293 context
->printer
->prefix
= old_prefix
;
3297 /* Returns a description of FUNCTION using standard terminology. The
3298 result is a format string of the form "In CATEGORY %qs". */
3300 function_category (tree fn
)
3302 /* We can get called from the middle-end for diagnostics of function
3303 clones. Make sure we have language specific information before
3304 dereferencing it. */
3305 if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn
))
3306 && DECL_FUNCTION_MEMBER_P (fn
))
3308 if (DECL_STATIC_FUNCTION_P (fn
))
3309 return _("In static member function %qs");
3310 else if (DECL_COPY_CONSTRUCTOR_P (fn
))
3311 return _("In copy constructor %qs");
3312 else if (DECL_CONSTRUCTOR_P (fn
))
3313 return _("In constructor %qs");
3314 else if (DECL_DESTRUCTOR_P (fn
))
3315 return _("In destructor %qs");
3316 else if (LAMBDA_FUNCTION_P (fn
))
3317 return _("In lambda function");
3319 return _("In member function %qs");
3322 return _("In function %qs");
3325 /* Report the full context of a current template instantiation,
3328 print_instantiation_full_context (diagnostic_context
*context
)
3330 struct tinst_level
*p
= current_instantiation ();
3331 location_t location
= input_location
;
3335 pp_verbatim (context
->printer
,
3336 TREE_CODE (p
->decl
) == TREE_LIST
3337 ? _("%s: In substitution of %qS:\n")
3338 : _("%s: In instantiation of %q#D:\n"),
3339 LOCATION_FILE (location
),
3342 location
= p
->locus
;
3346 print_instantiation_partial_context (context
, p
, location
);
3349 /* Helper function of print_instantiation_partial_context() that
3350 prints a single line of instantiation context. */
3353 print_instantiation_partial_context_line (diagnostic_context
*context
,
3354 const struct tinst_level
*t
,
3355 location_t loc
, bool recursive_p
)
3357 if (loc
== UNKNOWN_LOCATION
)
3360 expanded_location xloc
= expand_location (loc
);
3362 if (context
->show_column
)
3363 pp_verbatim (context
->printer
, _("%r%s:%d:%d:%R "),
3364 "locus", xloc
.file
, xloc
.line
, xloc
.column
);
3366 pp_verbatim (context
->printer
, _("%r%s:%d:%R "),
3367 "locus", xloc
.file
, xloc
.line
);
3371 if (TREE_CODE (t
->decl
) == TREE_LIST
)
3372 pp_verbatim (context
->printer
,
3374 ? _("recursively required by substitution of %qS\n")
3375 : _("required by substitution of %qS\n"),
3378 pp_verbatim (context
->printer
,
3380 ? _("recursively required from %q#D\n")
3381 : _("required from %q#D\n"),
3386 pp_verbatim (context
->printer
,
3388 ? _("recursively required from here\n")
3389 : _("required from here\n"));
3393 /* Same as print_instantiation_full_context but less verbose. */
3396 print_instantiation_partial_context (diagnostic_context
*context
,
3397 struct tinst_level
*t0
, location_t loc
)
3399 struct tinst_level
*t
;
3402 location_t prev_loc
= loc
;
3404 for (t
= t0
; t
!= NULL
; t
= t
->next
)
3405 if (prev_loc
!= t
->locus
)
3407 prev_loc
= t
->locus
;
3413 if (template_backtrace_limit
3414 && n_total
> template_backtrace_limit
)
3416 int skip
= n_total
- template_backtrace_limit
;
3417 int head
= template_backtrace_limit
/ 2;
3419 /* Avoid skipping just 1. If so, skip 2. */
3423 head
= (template_backtrace_limit
- 1) / 2;
3426 for (n
= 0; n
< head
; n
++)
3428 gcc_assert (t
!= NULL
);
3429 if (loc
!= t
->locus
)
3430 print_instantiation_partial_context_line (context
, t
, loc
,
3431 /*recursive_p=*/false);
3435 if (t
!= NULL
&& skip
> 0)
3437 expanded_location xloc
;
3438 xloc
= expand_location (loc
);
3439 if (context
->show_column
)
3440 pp_verbatim (context
->printer
,
3441 _("%r%s:%d:%d:%R [ skipping %d instantiation "
3442 "contexts, use -ftemplate-backtrace-limit=0 to "
3444 "locus", xloc
.file
, xloc
.line
, xloc
.column
, skip
);
3446 pp_verbatim (context
->printer
,
3447 _("%r%s:%d:%R [ skipping %d instantiation "
3448 "contexts, use -ftemplate-backtrace-limit=0 to "
3450 "locus", xloc
.file
, xloc
.line
, skip
);
3455 } while (t
!= NULL
&& --skip
> 0);
3461 while (t
->next
!= NULL
&& t
->locus
== t
->next
->locus
)
3466 print_instantiation_partial_context_line (context
, t
, loc
,
3471 print_instantiation_partial_context_line (context
, NULL
, loc
,
3472 /*recursive_p=*/false);
3475 /* Called from cp_thing to print the template context for an error. */
3477 maybe_print_instantiation_context (diagnostic_context
*context
)
3479 if (!problematic_instantiation_changed () || current_instantiation () == 0)
3482 record_last_problematic_instantiation ();
3483 print_instantiation_full_context (context
);
3486 /* Report what constexpr call(s) we're trying to expand, if any. */
3489 maybe_print_constexpr_context (diagnostic_context
*context
)
3491 vec
<tree
> call_stack
= cx_error_context ();
3495 FOR_EACH_VEC_ELT (call_stack
, ix
, t
)
3497 expanded_location xloc
= expand_location (EXPR_LOCATION (t
));
3498 const char *s
= expr_as_string (t
, 0);
3499 if (context
->show_column
)
3500 pp_verbatim (context
->printer
,
3501 _("%r%s:%d:%d:%R in constexpr expansion of %qs"),
3502 "locus", xloc
.file
, xloc
.line
, xloc
.column
, s
);
3504 pp_verbatim (context
->printer
,
3505 _("%r%s:%d:%R in constexpr expansion of %qs"),
3506 "locus", xloc
.file
, xloc
.line
, s
);
3507 pp_newline (context
->printer
);
3511 /* Called from output_format -- during diagnostic message processing --
3512 to handle C++ specific format specifier with the following meanings:
3513 %A function argument-list.
3517 %F function declaration.
3518 %L language as used in extern "lang".
3520 %P function parameter whose position is indicated by an integer.
3521 %Q assignment operator.
3522 %S substitution (template + args)
3525 %X exception-specification. */
3527 cp_printer (pretty_printer
*pp
, text_info
*text
, const char *spec
,
3528 int precision
, bool wide
, bool set_locus
, bool verbose
)
3532 #define next_tree (t = va_arg (*text->args_ptr, tree))
3533 #define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
3534 #define next_lang ((enum languages) va_arg (*text->args_ptr, int))
3535 #define next_int va_arg (*text->args_ptr, int)
3537 if (precision
!= 0 || wide
)
3542 case 'A': result
= args_to_string (next_tree
, verbose
); break;
3543 case 'C': result
= code_to_string (next_tcode
); break;
3546 tree temp
= next_tree
;
3548 && DECL_HAS_DEBUG_EXPR_P (temp
))
3550 temp
= DECL_DEBUG_EXPR (temp
);
3553 result
= expr_to_string (temp
);
3557 result
= decl_to_string (temp
, verbose
);
3560 case 'E': result
= expr_to_string (next_tree
); break;
3561 case 'F': result
= fndecl_to_string (next_tree
, verbose
); break;
3562 case 'L': result
= language_to_string (next_lang
); break;
3563 case 'O': result
= op_to_string (next_tcode
); break;
3564 case 'P': result
= parm_to_string (next_int
); break;
3565 case 'Q': result
= assop_to_string (next_tcode
); break;
3566 case 'S': result
= subst_to_string (next_tree
); break;
3567 case 'T': result
= type_to_string (next_tree
, verbose
); break;
3568 case 'V': result
= cv_to_string (next_tree
, verbose
); break;
3569 case 'X': result
= eh_spec_to_string (next_tree
, verbose
); break;
3572 percent_K_format (text
);
3579 pp_string (pp
, result
);
3580 if (set_locus
&& t
!= NULL
)
3581 text
->set_location (0, location_of (t
), true);
3589 /* Warn about the use of C++0x features when appropriate. */
3591 maybe_warn_cpp0x (cpp0x_warn_str str
)
3593 if ((cxx_dialect
== cxx98
) && !in_system_header_at (input_location
))
3594 /* We really want to suppress this warning in system headers,
3595 because libstdc++ uses variadic templates even when we aren't
3599 case CPP0X_INITIALIZER_LISTS
:
3600 pedwarn (input_location
, 0,
3601 "extended initializer lists "
3602 "only available with -std=c++11 or -std=gnu++11");
3604 case CPP0X_EXPLICIT_CONVERSION
:
3605 pedwarn (input_location
, 0,
3606 "explicit conversion operators "
3607 "only available with -std=c++11 or -std=gnu++11");
3609 case CPP0X_VARIADIC_TEMPLATES
:
3610 pedwarn (input_location
, 0,
3611 "variadic templates "
3612 "only available with -std=c++11 or -std=gnu++11");
3614 case CPP0X_LAMBDA_EXPR
:
3615 pedwarn (input_location
, 0,
3616 "lambda expressions "
3617 "only available with -std=c++11 or -std=gnu++11");
3620 pedwarn (input_location
, 0,
3621 "C++11 auto only available with -std=c++11 or -std=gnu++11");
3623 case CPP0X_SCOPED_ENUMS
:
3624 pedwarn (input_location
, 0,
3625 "scoped enums only available with -std=c++11 or -std=gnu++11");
3627 case CPP0X_DEFAULTED_DELETED
:
3628 pedwarn (input_location
, 0,
3629 "defaulted and deleted functions "
3630 "only available with -std=c++11 or -std=gnu++11");
3632 case CPP0X_INLINE_NAMESPACES
:
3633 pedwarn (input_location
, OPT_Wpedantic
,
3634 "inline namespaces "
3635 "only available with -std=c++11 or -std=gnu++11");
3637 case CPP0X_OVERRIDE_CONTROLS
:
3638 pedwarn (input_location
, 0,
3639 "override controls (override/final) "
3640 "only available with -std=c++11 or -std=gnu++11");
3643 pedwarn (input_location
, 0,
3644 "non-static data member initializers "
3645 "only available with -std=c++11 or -std=gnu++11");
3647 case CPP0X_USER_DEFINED_LITERALS
:
3648 pedwarn (input_location
, 0,
3649 "user-defined literals "
3650 "only available with -std=c++11 or -std=gnu++11");
3652 case CPP0X_DELEGATING_CTORS
:
3653 pedwarn (input_location
, 0,
3654 "delegating constructors "
3655 "only available with -std=c++11 or -std=gnu++11");
3657 case CPP0X_INHERITING_CTORS
:
3658 pedwarn (input_location
, 0,
3659 "inheriting constructors "
3660 "only available with -std=c++11 or -std=gnu++11");
3662 case CPP0X_ATTRIBUTES
:
3663 pedwarn (input_location
, 0,
3665 "only available with -std=c++11 or -std=gnu++11");
3667 case CPP0X_REF_QUALIFIER
:
3668 pedwarn (input_location
, 0,
3670 "only available with -std=c++11 or -std=gnu++11");
3677 /* Warn about the use of variadic templates when appropriate. */
3679 maybe_warn_variadic_templates (void)
3681 maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES
);
3685 /* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
3686 option OPT with text GMSGID. Use this function to report
3687 diagnostics for constructs that are invalid C++98, but valid
3690 pedwarn_cxx98 (location_t location
, int opt
, const char *gmsgid
, ...)
3692 diagnostic_info diagnostic
;
3695 rich_location
richloc (line_table
, location
);
3697 va_start (ap
, gmsgid
);
3698 diagnostic_set_info (&diagnostic
, gmsgid
, &ap
, &richloc
,
3699 (cxx_dialect
== cxx98
) ? DK_PEDWARN
: DK_WARNING
);
3700 diagnostic
.option_index
= opt
;
3701 ret
= report_diagnostic (&diagnostic
);
3706 /* Issue a diagnostic that NAME cannot be found in SCOPE. DECL is what
3707 we found when we tried to do the lookup. LOCATION is the location of
3708 the NAME identifier. */
3711 qualified_name_lookup_error (tree scope
, tree name
,
3712 tree decl
, location_t location
)
3714 if (scope
== error_mark_node
)
3715 ; /* We already complained. */
3716 else if (TYPE_P (scope
))
3718 if (!COMPLETE_TYPE_P (scope
))
3719 error_at (location
, "incomplete type %qT used in nested name specifier",
3721 else if (TREE_CODE (decl
) == TREE_LIST
)
3723 error_at (location
, "reference to %<%T::%D%> is ambiguous",
3725 print_candidates (decl
);
3728 error_at (location
, "%qD is not a member of %qT", name
, scope
);
3730 else if (scope
!= global_namespace
)
3732 error_at (location
, "%qD is not a member of %qD", name
, scope
);
3733 suggest_alternatives_for (location
, name
);
3737 error_at (location
, "%<::%D%> has not been declared", name
);
3738 suggest_alternatives_for (location
, name
);