1 /* Process declarations and variables for C compiler.
2 Copyright (C) 1988, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
3 Hacked by Michael Tiemann (tiemann@cygnus.com)
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
23 /* Process declarations and symbol lookup for C front end.
24 Also constructs types; the standard scalar types at initialization,
25 and structure, union, array and enum types when they are declared. */
27 /* ??? not all decl nodes are given the most useful possible
28 line numbers. For example, the CONST_DECLs for enum values. */
43 #include "dwarf2out.h"
48 extern cpp_reader parse_in
;
49 extern cpp_options parse_options
;
50 static int cpp_initialized
;
53 static tree get_sentry
PROTO((tree
));
54 static void mark_vtable_entries
PROTO((tree
));
55 static void grok_function_init
PROTO((tree
, tree
));
56 static int finish_vtable_vardecl
PROTO((tree
, tree
));
57 static int prune_vtable_vardecl
PROTO((tree
, tree
));
58 static void finish_sigtable_vardecl
PROTO((tree
, tree
));
59 static int is_namespace_ancestor
PROTO((tree
, tree
));
60 static void add_using_namespace
PROTO((tree
, tree
, int));
61 static tree ambiguous_decl
PROTO((tree
, tree
, tree
,int));
62 static tree build_anon_union_vars
PROTO((tree
, tree
*, int, int));
63 static void check_decl_namespace
PROTO((void));
65 extern int current_class_depth
;
67 /* A list of virtual function tables we must make sure to write out. */
70 /* A list of static class variables. This is needed, because a
71 static class variable can be declared inside the class without
72 an initializer, and then initialized, staticly, outside the class. */
75 /* A list of functions which were declared inline, but which we
76 may need to emit outline anyway. */
77 static tree saved_inlines
;
79 /* Used to help generate temporary names which are unique within
80 a function. Reset to 0 by start_function. */
82 int temp_name_counter
;
84 /* Same, but not reset. Local temp variables and global temp variables
85 can have the same name. */
86 static int global_temp_name_counter
;
88 /* Flag used when debugging spew.c */
90 extern int spew_debug
;
92 /* Nonzero if we're done parsing and into end-of-file activities. */
96 /* Functions called along with real static constructors and destructors. */
98 tree static_ctors
, static_dtors
;
100 /* The current open namespace, and ::. */
102 tree current_namespace
;
103 tree global_namespace
;
105 /* The stack for namespaces of current declarations. */
107 static tree decl_namespace_list
;
110 /* C (and C++) language-specific option variables. */
112 /* Nonzero means allow type mismatches in conditional expressions;
113 just make their values `void'. */
115 int flag_cond_mismatch
;
117 /* Nonzero means give `double' the same size as `float'. */
119 int flag_short_double
;
121 /* Nonzero means don't recognize the keyword `asm'. */
125 /* Nonzero means don't recognize any extension keywords. */
127 int flag_no_gnu_keywords
;
129 /* Nonzero means don't recognize the non-ANSI builtin functions. */
133 /* Nonzero means don't recognize the non-ANSI builtin functions.
136 int flag_no_nonansi_builtin
;
138 /* Nonzero means do some things the same way PCC does. Only provided so
139 the compiler will link. */
141 int flag_traditional
;
143 /* Nonzero means to treat bitfields as unsigned unless they say `signed'. */
145 int flag_signed_bitfields
= 1;
147 /* Nonzero means handle `#ident' directives. 0 means ignore them. */
151 /* Nonzero means enable obscure ANSI features and disable GNU extensions
152 that might cause ANSI-compliant code to be miscompiled. */
156 /* Nonzero means do emit exported implementations of functions even if
157 they can be inlined. */
159 int flag_implement_inlines
= 1;
161 /* Nonzero means do emit exported implementations of templates, instead of
162 multiple static copies in each file that needs a definition. */
164 int flag_external_templates
;
166 /* Nonzero means that the decision to emit or not emit the implementation of a
167 template depends on where the template is instantiated, rather than where
170 int flag_alt_external_templates
;
172 /* Nonzero means that implicit instantiations will be emitted if needed. */
174 int flag_implicit_templates
= 1;
176 /* Nonzero means that implicit instantiations of inline templates will be
177 emitted if needed, even if instantiations of non-inline templates
180 int flag_implicit_inline_templates
= 1;
182 /* Nonzero means allow numerical priorities on constructors. */
184 #ifdef USE_INIT_PRIORITY
185 int flag_init_priority
= 1;
187 int flag_init_priority
;
190 /* Nonzero means warn about implicit declarations. */
192 int warn_implicit
= 1;
194 /* Nonzero means warn about usage of long long when `-pedantic'. */
196 int warn_long_long
= 1;
198 /* Nonzero means warn when all ctors or dtors are private, and the class
201 int warn_ctor_dtor_privacy
= 1;
203 /* True if we want to implement vtables using "thunks".
204 The default is off. */
206 #ifndef DEFAULT_VTABLE_THUNKS
207 #define DEFAULT_VTABLE_THUNKS 0
209 int flag_vtable_thunks
= DEFAULT_VTABLE_THUNKS
;
211 /* True if we want to deal with repository information. */
213 int flag_use_repository
;
215 /* Nonzero if we want to issue diagnostics that the standard says are not
218 int flag_optional_diags
= 1;
220 /* Nonzero means give string constants the type `const char *', as mandated
223 int flag_const_strings
= 1;
225 /* Nonzero means warn about deprecated conversion from string constant to
228 int warn_write_strings
;
230 /* Nonzero means warn about pointer casts that can drop a type qualifier
231 from the pointer target type. */
235 /* Nonzero means warn about sizeof(function) or addition/subtraction
236 of function pointers. */
238 int warn_pointer_arith
= 1;
240 /* Nonzero means warn for any function def without prototype decl. */
242 int warn_missing_prototypes
;
244 /* Nonzero means warn about multiple (redundant) decls for the same single
245 variable or function. */
247 int warn_redundant_decls
;
249 /* Warn if initializer is not completely bracketed. */
251 int warn_missing_braces
;
253 /* Warn about comparison of signed and unsigned values. */
255 int warn_sign_compare
;
257 /* Warn about *printf or *scanf format/argument anomalies. */
261 /* Warn about a subscript that has type char. */
263 int warn_char_subscripts
;
265 /* Warn if a type conversion is done that might have confusing results. */
269 /* Warn if adding () is suggested. */
271 int warn_parentheses
;
273 /* Non-zero means warn in function declared in derived class has the
274 same name as a virtual in the base class, but fails to match the
275 type signature of any virtual function in the base class. */
276 int warn_overloaded_virtual
;
278 /* Non-zero means warn when declaring a class that has a non virtual
279 destructor, when it really ought to have a virtual one. */
282 /* Non-zero means warn when a function is declared extern and later inline. */
283 int warn_extern_inline
;
285 /* Non-zero means warn when the compiler will reorder code. */
288 /* Non-zero means warn when synthesis behavior differs from Cfront's. */
291 /* Non-zero means warn when we convert a pointer to member function
292 into a pointer to (void or function). */
293 int warn_pmf2ptr
= 1;
295 /* Nonzero means warn about violation of some Effective C++ style rules. */
299 /* Nonzero means warn where overload resolution chooses a promotion from
300 unsigned to signed over a conversion to an unsigned of the same size. */
304 /* Nonzero means warn when an old-style cast is used. */
306 int warn_old_style_cast
;
308 /* Warn about #pragma directives that are not recognised. */
310 int warn_unknown_pragmas
; /* Tri state variable. */
312 /* Nonzero means warn about use of multicharacter literals. */
314 int warn_multichar
= 1;
316 /* Nonzero means warn when non-templatized friend functions are
317 declared within a template */
319 int warn_nontemplate_friend
= 1;
321 /* Nonzero means `$' can be in an identifier. */
323 #ifndef DOLLARS_IN_IDENTIFIERS
324 #define DOLLARS_IN_IDENTIFIERS 1
326 int dollars_in_ident
= DOLLARS_IN_IDENTIFIERS
;
328 /* Nonzero for -fno-strict-prototype switch: do not consider empty
329 argument prototype to mean function takes no arguments. */
331 int flag_strict_prototype
= 2;
332 int strict_prototype
= 1;
333 int strict_prototypes_lang_c
, strict_prototypes_lang_cplusplus
= 1;
335 /* Nonzero means that labels can be used as first-class objects */
339 /* Non-zero means to collect statistics which might be expensive
340 and to print them when we are done. */
341 int flag_detailed_statistics
;
343 /* C++ specific flags. */
344 /* Zero means that `this' is a *const. This gives nice behavior in the
345 2.0 world. 1 gives 1.2-compatible behavior. 2 gives Spring behavior.
346 -2 means we're constructing an object and it has fixed type. */
348 int flag_this_is_variable
;
350 /* 3 means write out only virtuals function tables `defined'
351 in this implementation file.
352 0 means write out virtual function tables and give them
353 (C) static access (default). */
357 /* Nonzero means we should attempt to elide constructors when possible. */
359 int flag_elide_constructors
= 1;
361 /* Nonzero means recognize and handle signature language constructs. */
363 int flag_handle_signatures
;
365 /* Nonzero means that member functions defined in class scope are
366 inline by default. */
368 int flag_default_inline
= 1;
370 /* Controls whether compiler generates 'type descriptor' that give
371 run-time type information. */
374 /* Nonzero if we wish to output cross-referencing information
375 for the GNU class browser. */
376 extern int flag_gnu_xref
;
378 /* Nonzero if we want to support huge (> 2^(sizeof(short)*8-1) bytes)
381 int flag_huge_objects
;
383 /* Nonzero if we want to conserve space in the .o files. We do this
384 by putting uninitialized data and runtime initialized data into
385 .common instead of .data at the expense of not flagging multiple
388 int flag_conserve_space
;
390 /* Nonzero if we want to obey access control semantics. */
392 int flag_access_control
= 1;
394 /* Nonzero if we want to understand the operator names, i.e. 'bitand'. */
396 int flag_operator_names
;
398 /* Nonzero if we want to check the return value of new and avoid calling
399 constructors if it is a null pointer. */
403 /* Nonzero if we want the new ANSI rules for pushing a new scope for `for'
404 initialization variables.
405 0: Old rules, set by -fno-for-scope.
406 2: New ANSI rules, set by -ffor-scope.
407 1: Try to implement new ANSI rules, but with backup compatibility
408 (and warnings). This is the default, for now. */
410 int flag_new_for_scope
= 1;
412 /* Nonzero if we want to emit defined symbols with common-like linkage as
413 weak symbols where possible, in order to conform to C++ semantics.
414 Otherwise, emit them as local symbols. */
418 /* Nonzero to enable experimental ABI changes. */
422 /* Nonzero to not ignore namespace std. */
426 /* Maximum template instantiation depth. Must be at least 17 for ANSI
429 int max_tinst_depth
= 17;
431 /* The name-mangling scheme to use. Must be 1 or greater to support
432 template functions with identical types, but different template
434 int name_mangling_version
= 2;
436 /* Nonzero means that guiding declarations are allowed. */
437 int flag_guiding_decls
;
439 /* Nonzero if squashed mangling is to be performed.
440 This uses the B and K codes to reference previously seen class types
441 and class qualifiers. */
442 int flag_do_squangling
;
444 /* Nonzero means output .vtable_{entry,inherit} for use in doing vtable gc. */
448 /* Table of language-dependent -f options.
449 STRING is the option name. VARIABLE is the address of the variable.
450 ON_VALUE is the value to store in VARIABLE
451 if `-fSTRING' is seen as an option.
452 (If `-fno-STRING' is seen as an option, the opposite value is stored.) */
454 static struct { char *string
; int *variable
; int on_value
;} lang_f_options
[] =
456 {"signed-char", &flag_signed_char
, 1},
457 {"unsigned-char", &flag_signed_char
, 0},
458 {"signed-bitfields", &flag_signed_bitfields
, 1},
459 {"unsigned-bitfields", &flag_signed_bitfields
, 0},
460 {"short-enums", &flag_short_enums
, 1},
461 {"short-double", &flag_short_double
, 1},
462 {"cond-mismatch", &flag_cond_mismatch
, 1},
463 {"squangle", &flag_do_squangling
, 1},
464 {"asm", &flag_no_asm
, 0},
465 {"builtin", &flag_no_builtin
, 0},
466 {"ident", &flag_no_ident
, 0},
467 {"labels-ok", &flag_labels_ok
, 1},
468 {"const-strings", &flag_const_strings
, 1},
469 {"stats", &flag_detailed_statistics
, 1},
470 {"this-is-variable", &flag_this_is_variable
, 1},
471 {"strict-prototype", &flag_strict_prototype
, 1},
472 {"elide-constructors", &flag_elide_constructors
, 1},
473 {"handle-exceptions", &flag_exceptions
, 1},
474 {"handle-signatures", &flag_handle_signatures
, 1},
475 {"default-inline", &flag_default_inline
, 1},
476 {"dollars-in-identifiers", &dollars_in_ident
, 1},
477 {"honor-std", &flag_honor_std
, 1},
478 {"rtti", &flag_rtti
, 1},
479 {"xref", &flag_gnu_xref
, 1},
480 {"implement-inlines", &flag_implement_inlines
, 1},
481 {"external-templates", &flag_external_templates
, 1},
482 {"implicit-templates", &flag_implicit_templates
, 1},
483 {"implicit-inline-templates", &flag_implicit_inline_templates
, 1},
484 {"init-priority", &flag_init_priority
, 1},
485 {"huge-objects", &flag_huge_objects
, 1},
486 {"conserve-space", &flag_conserve_space
, 1},
487 {"vtable-gc", &flag_vtable_gc
, 1},
488 {"vtable-thunks", &flag_vtable_thunks
, 1},
489 {"access-control", &flag_access_control
, 1},
490 {"nonansi-builtins", &flag_no_nonansi_builtin
, 0},
491 {"gnu-keywords", &flag_no_gnu_keywords
, 0},
492 {"operator-names", &flag_operator_names
, 1},
493 {"optional-diags", &flag_optional_diags
, 1},
494 {"check-new", &flag_check_new
, 1},
495 {"repo", &flag_use_repository
, 1},
496 {"for-scope", &flag_new_for_scope
, 2},
497 {"weak", &flag_weak
, 1}
500 /* Decode the string P as a language-specific option.
501 Return the number of strings consumed for a valid option.
502 Otherwise return 0. */
505 lang_decode_option (argc
, argv
)
514 int strings_processed
;
517 if (! cpp_initialized
)
519 cpp_reader_init (&parse_in
);
520 parse_in
.data
= &parse_options
;
521 cpp_options_init (&parse_options
);
524 strings_processed
= cpp_handle_option (&parse_in
, argc
, argv
);
526 strings_processed
= 0;
527 #endif /* ! USE_CPPLIB */
529 if (!strcmp (p
, "-ftraditional") || !strcmp (p
, "-traditional"))
531 else if (p
[0] == '-' && p
[1] == 'f')
533 /* Some kind of -f option.
534 P's value is the option sans `-f'.
535 Search for it in the table of options. */
540 /* Try special -f options. */
542 if (!strcmp (p
, "handle-exceptions")
543 || !strcmp (p
, "no-handle-exceptions"))
544 warning ("-fhandle-exceptions has been renamed to -fexceptions (and is now on by default)");
546 if (!strcmp (p
, "memoize-lookups")
547 || !strcmp (p
, "no-memoize-lookups")
548 || !strcmp (p
, "save-memoized")
549 || !strcmp (p
, "no-save-memoized")
550 || !strcmp (p
, "no-all-virtual")
551 || !strcmp (p
, "no-enum-int-equiv")
552 || !strcmp (p
, "nonnull-objects")
553 || !strcmp (p
, "ansi-overloading"))
558 else if (!strcmp (p
, "all-virtual")
559 || !strcmp (p
, "enum-int-equiv")
560 || !strcmp (p
, "no-nonnull-objects")
561 || !strcmp (p
, "no-ansi-overloading"))
563 warning ("-f%s is no longer supported", p
);
566 else if (! strcmp (p
, "alt-external-templates"))
568 flag_external_templates
= 1;
569 flag_alt_external_templates
= 1;
572 else if (! strcmp (p
, "no-alt-external-templates"))
574 flag_alt_external_templates
= 0;
577 else if (!strcmp (p
, "repo"))
579 flag_use_repository
= 1;
580 flag_implicit_templates
= 0;
583 else if (!strcmp (p
, "guiding-decls"))
585 flag_guiding_decls
= 1;
586 name_mangling_version
= 0;
589 else if (!strcmp (p
, "no-guiding-decls"))
591 flag_guiding_decls
= 0;
594 else if (!strcmp (p
, "new-abi"))
597 flag_do_squangling
= 1;
599 flag_vtable_thunks
= 1;
601 else if (!strcmp (p
, "no-new-abi"))
604 flag_do_squangling
= 0;
607 else if (!strncmp (p
, "template-depth-", 15))
612 if (*endp
>= '0' && *endp
<= '9')
616 error ("Invalid option `%s'", p
- 2);
617 goto template_depth_lose
;
620 max_tinst_depth
= atoi (p
+ 15);
621 template_depth_lose
: ;
623 else if (!strncmp (p
, "name-mangling-version-", 22))
628 if (*endp
>= '0' && *endp
<= '9')
632 error ("Invalid option `%s'", p
- 2);
633 goto mangling_version_lose
;
636 name_mangling_version
= atoi (p
+ 22);
637 mangling_version_lose
: ;
640 !found
&& j
< sizeof (lang_f_options
) / sizeof (lang_f_options
[0]);
643 if (!strcmp (p
, lang_f_options
[j
].string
))
645 *lang_f_options
[j
].variable
= lang_f_options
[j
].on_value
;
646 /* A goto here would be cleaner,
647 but breaks the vax pcc. */
650 if (p
[0] == 'n' && p
[1] == 'o' && p
[2] == '-'
651 && ! strcmp (p
+3, lang_f_options
[j
].string
))
653 *lang_f_options
[j
].variable
= ! lang_f_options
[j
].on_value
;
659 else if (p
[0] == '-' && p
[1] == 'W')
663 /* The -W options control the warning behavior of the compiler. */
666 if (p
[0] == 'n' && p
[1] == 'o' && p
[2] == '-')
669 if (!strcmp (p
, "implicit"))
670 warn_implicit
= setting
;
671 else if (!strcmp (p
, "long-long"))
672 warn_long_long
= setting
;
673 else if (!strcmp (p
, "return-type"))
674 warn_return_type
= setting
;
675 else if (!strcmp (p
, "ctor-dtor-privacy"))
676 warn_ctor_dtor_privacy
= setting
;
677 else if (!strcmp (p
, "write-strings"))
678 warn_write_strings
= setting
;
679 else if (!strcmp (p
, "cast-qual"))
680 warn_cast_qual
= setting
;
681 else if (!strcmp (p
, "char-subscripts"))
682 warn_char_subscripts
= setting
;
683 else if (!strcmp (p
, "pointer-arith"))
684 warn_pointer_arith
= setting
;
685 else if (!strcmp (p
, "missing-prototypes"))
686 warn_missing_prototypes
= setting
;
687 else if (!strcmp (p
, "redundant-decls"))
688 warn_redundant_decls
= setting
;
689 else if (!strcmp (p
, "missing-braces"))
690 warn_missing_braces
= setting
;
691 else if (!strcmp (p
, "sign-compare"))
692 warn_sign_compare
= setting
;
693 else if (!strcmp (p
, "format"))
694 warn_format
= setting
;
695 else if (!strcmp (p
, "conversion"))
696 warn_conversion
= setting
;
697 else if (!strcmp (p
, "parentheses"))
698 warn_parentheses
= setting
;
699 else if (!strcmp (p
, "non-virtual-dtor"))
700 warn_nonvdtor
= setting
;
701 else if (!strcmp (p
, "extern-inline"))
702 warn_extern_inline
= setting
;
703 else if (!strcmp (p
, "reorder"))
704 warn_reorder
= setting
;
705 else if (!strcmp (p
, "synth"))
706 warn_synth
= setting
;
707 else if (!strcmp (p
, "pmf-conversions"))
708 warn_pmf2ptr
= setting
;
709 else if (!strcmp (p
, "effc++"))
711 else if (!strcmp (p
, "sign-promo"))
712 warn_sign_promo
= setting
;
713 else if (!strcmp (p
, "old-style-cast"))
714 warn_old_style_cast
= setting
;
715 else if (!strcmp (p
, "overloaded-virtual"))
716 warn_overloaded_virtual
= setting
;
717 else if (!strcmp (p
, "multichar"))
718 warn_multichar
= setting
;
719 else if (!strcmp (p
, "unknown-pragmas"))
720 /* Set to greater than 1, so that even unknown pragmas in
721 system headers will be warned about. */
722 warn_unknown_pragmas
= setting
* 2;
723 else if (!strcmp (p
, "non-template-friend"))
724 warn_nontemplate_friend
= setting
;
725 else if (!strcmp (p
, "comment"))
726 ; /* cpp handles this one. */
727 else if (!strcmp (p
, "comments"))
728 ; /* cpp handles this one. */
729 else if (!strcmp (p
, "trigraphs"))
730 ; /* cpp handles this one. */
731 else if (!strcmp (p
, "import"))
732 ; /* cpp handles this one. */
733 else if (!strcmp (p
, "all"))
735 warn_return_type
= setting
;
736 warn_unused
= setting
;
737 warn_implicit
= setting
;
738 warn_ctor_dtor_privacy
= setting
;
739 warn_switch
= setting
;
740 warn_format
= setting
;
741 warn_parentheses
= setting
;
742 warn_missing_braces
= setting
;
743 warn_sign_compare
= setting
;
744 warn_extern_inline
= setting
;
745 warn_nonvdtor
= setting
;
746 warn_multichar
= setting
;
747 /* We save the value of warn_uninitialized, since if they put
748 -Wuninitialized on the command line, we need to generate a
749 warning about not using it without also specifying -O. */
750 if (warn_uninitialized
!= 1)
751 warn_uninitialized
= (setting
? 2 : 0);
752 warn_reorder
= setting
;
753 warn_sign_promo
= setting
;
754 /* Only warn about unknown pragmas that are not in system
756 warn_unknown_pragmas
= 1;
757 warn_nontemplate_friend
= setting
;
759 else return strings_processed
;
761 else if (!strcmp (p
, "-ansi"))
762 flag_no_nonansi_builtin
= 1, flag_ansi
= 1,
763 flag_no_gnu_keywords
= 1, flag_operator_names
= 1;
765 /* Undocumented, only ever used when you're invoking cc1plus by hand, since
766 it's probably safe to assume no sane person would ever want to use this
767 under normal circumstances. */
768 else if (!strcmp (p
, "-spew-debug"))
772 return strings_processed
;
777 /* Incorporate `const' and `volatile' qualifiers for member functions.
778 FUNCTION is a TYPE_DECL or a FUNCTION_DECL.
779 QUALS is a list of qualifiers. */
782 grok_method_quals (ctype
, function
, quals
)
783 tree ctype
, function
, quals
;
785 tree fntype
= TREE_TYPE (function
);
786 tree raises
= TYPE_RAISES_EXCEPTIONS (fntype
);
787 int type_quals
= TYPE_UNQUALIFIED
;
788 int dup_quals
= TYPE_UNQUALIFIED
;
792 int tq
= cp_type_qual_from_rid (TREE_VALUE (quals
));
798 quals
= TREE_CHAIN (quals
);
802 if (dup_quals
!= TYPE_UNQUALIFIED
)
803 cp_error ("duplicate type qualifiers in %s declaration",
804 TREE_CODE (function
) == FUNCTION_DECL
805 ? "member function" : "type");
807 ctype
= cp_build_qualified_type (ctype
, type_quals
);
808 fntype
= build_cplus_method_type (ctype
, TREE_TYPE (fntype
),
809 (TREE_CODE (fntype
) == METHOD_TYPE
810 ? TREE_CHAIN (TYPE_ARG_TYPES (fntype
))
811 : TYPE_ARG_TYPES (fntype
)));
813 fntype
= build_exception_variant (fntype
, raises
);
815 TREE_TYPE (function
) = fntype
;
819 /* Warn when -fexternal-templates is used and #pragma
820 interface/implementation is not used all the times it should be,
824 warn_if_unknown_interface (decl
)
827 static int already_warned
= 0;
828 if (already_warned
++)
831 if (flag_alt_external_templates
)
833 struct tinst_level
*til
= tinst_for_decl ();
835 char *sf
= input_filename
;
840 input_filename
= til
->file
;
842 cp_warning ("template `%#D' instantiated in file without #pragma interface",
848 cp_warning_at ("template `%#D' defined in file without #pragma interface",
852 /* A subroutine of the parser, to handle a component list. */
855 grok_x_components (specs
)
858 struct pending_inline
**p
;
861 t
= groktypename (build_decl_list (strip_attrs (specs
), NULL_TREE
));
865 cp_error ("invalid member declaration");
869 /* The only case where we need to do anything additional here is an
870 anonymous union field, e.g.: `struct S { union { int i; }; };'. */
871 if (!ANON_UNION_TYPE_P (t
))
874 fixup_anonymous_union (t
);
875 finish_member_declaration (build_lang_field_decl (FIELD_DECL
,
879 /* Ignore any inline function definitions in the anonymous union
880 since an anonymous union may not have function members. */
881 p
= &pending_inlines
;
882 for (; *p
; *p
= (*p
)->next
)
883 if (DECL_CONTEXT ((*p
)->fndecl
) != t
)
887 /* Constructors for types with virtual baseclasses need an "in-charge" flag
888 saying whether this constructor is responsible for initialization of
889 virtual baseclasses or not. All destructors also need this "in-charge"
890 flag, which additionally determines whether or not the destructor should
891 free the memory for the object.
893 This function adds the "in-charge" flag to member function FN if
894 appropriate. It is called from grokclassfn and tsubst.
895 FN must be either a constructor or destructor. */
898 maybe_retrofit_in_chrg (fn
)
901 tree basetype
, arg_types
, parms
, parm
, fntype
;
903 if (DECL_CONSTRUCTOR_P (fn
)
904 && TYPE_USES_VIRTUAL_BASECLASSES (DECL_CLASS_CONTEXT (fn
))
905 && ! DECL_CONSTRUCTOR_FOR_VBASE_P (fn
))
907 else if (! DECL_CONSTRUCTOR_P (fn
)
908 && TREE_CHAIN (DECL_ARGUMENTS (fn
)) == NULL_TREE
)
913 if (DECL_CONSTRUCTOR_P (fn
))
914 DECL_CONSTRUCTOR_FOR_VBASE_P (fn
) = 1;
916 /* First add it to DECL_ARGUMENTS... */
917 parm
= build_decl (PARM_DECL
, in_charge_identifier
, integer_type_node
);
918 /* Mark the artificial `__in_chrg' parameter as "artificial". */
919 SET_DECL_ARTIFICIAL (parm
);
920 DECL_ARG_TYPE (parm
) = integer_type_node
;
921 TREE_READONLY (parm
) = 1;
922 parms
= DECL_ARGUMENTS (fn
);
923 TREE_CHAIN (parm
) = TREE_CHAIN (parms
);
924 TREE_CHAIN (parms
) = parm
;
926 /* ...and then to TYPE_ARG_TYPES. */
927 arg_types
= TYPE_ARG_TYPES (TREE_TYPE (fn
));
928 basetype
= TREE_TYPE (TREE_VALUE (arg_types
));
929 arg_types
= hash_tree_chain (integer_type_node
, TREE_CHAIN (arg_types
));
930 fntype
= build_cplus_method_type (basetype
, TREE_TYPE (TREE_TYPE (fn
)),
932 if (TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fn
)))
933 fntype
= build_exception_variant (fntype
,
934 TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fn
)));
935 TREE_TYPE (fn
) = fntype
;
938 /* Classes overload their constituent function names automatically.
939 When a function name is declared in a record structure,
940 its name is changed to it overloaded name. Since names for
941 constructors and destructors can conflict, we place a leading
944 CNAME is the name of the class we are grokking for.
946 FUNCTION is a FUNCTION_DECL. It was created by `grokdeclarator'.
948 FLAGS contains bits saying what's special about today's
949 arguments. 1 == DESTRUCTOR. 2 == OPERATOR.
951 If FUNCTION is a destructor, then we must add the `auto-delete' field
952 as a second parameter. There is some hair associated with the fact
953 that we must "declare" this variable in the manner consistent with the
954 way the rest of the arguments were declared.
956 QUALS are the qualifiers for the this pointer. */
959 grokclassfn (ctype
, function
, flags
, quals
)
960 tree ctype
, function
;
961 enum overload_flags flags
;
964 tree fn_name
= DECL_NAME (function
);
969 if (fn_name
== NULL_TREE
)
971 error ("name missing for member function");
972 fn_name
= get_identifier ("<anonymous>");
973 DECL_NAME (function
) = fn_name
;
977 qualtype
= grok_method_quals (ctype
, function
, quals
);
981 arg_types
= TYPE_ARG_TYPES (TREE_TYPE (function
));
982 if (TREE_CODE (TREE_TYPE (function
)) == METHOD_TYPE
)
984 /* Must add the class instance variable up front. */
985 /* Right now we just make this a pointer. But later
986 we may wish to make it special. */
987 tree type
= TREE_VALUE (arg_types
);
990 if ((flag_this_is_variable
> 0)
991 && (flags
== DTOR_FLAG
|| DECL_CONSTRUCTOR_P (function
)))
994 parm
= build_decl (PARM_DECL
, this_identifier
, type
);
995 /* Mark the artificial `this' parameter as "artificial". */
996 SET_DECL_ARTIFICIAL (parm
);
997 DECL_ARG_TYPE (parm
) = type
;
998 /* We can make this a register, so long as we don't
999 accidentally complain if someone tries to take its address. */
1000 DECL_REGISTER (parm
) = 1;
1002 TREE_READONLY (parm
) = 1;
1003 TREE_CHAIN (parm
) = last_function_parms
;
1004 last_function_parms
= parm
;
1007 DECL_ARGUMENTS (function
) = last_function_parms
;
1008 /* First approximations. */
1009 DECL_CONTEXT (function
) = ctype
;
1010 DECL_CLASS_CONTEXT (function
) = ctype
;
1012 if (flags
== DTOR_FLAG
|| DECL_CONSTRUCTOR_P (function
))
1014 maybe_retrofit_in_chrg (function
);
1015 arg_types
= TYPE_ARG_TYPES (TREE_TYPE (function
));
1018 if (flags
== DTOR_FLAG
)
1020 DECL_ASSEMBLER_NAME (function
) = build_destructor_name (ctype
);
1021 TYPE_HAS_DESTRUCTOR (ctype
) = 1;
1024 set_mangled_name_for_decl (function
);
1027 /* Work on the expr used by alignof (this is only called by the parser). */
1036 if (processing_template_decl
)
1037 return build_min (ALIGNOF_EXPR
, sizetype
, expr
);
1039 if (TREE_CODE (expr
) == COMPONENT_REF
1040 && DECL_C_BIT_FIELD (TREE_OPERAND (expr
, 1)))
1041 error ("`__alignof__' applied to a bit-field");
1043 if (TREE_CODE (expr
) == INDIRECT_REF
)
1045 best
= t
= TREE_OPERAND (expr
, 0);
1046 bestalign
= TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t
)));
1048 while (TREE_CODE (t
) == NOP_EXPR
1049 && TREE_CODE (TREE_TYPE (TREE_OPERAND (t
, 0))) == POINTER_TYPE
)
1052 t
= TREE_OPERAND (t
, 0);
1053 thisalign
= TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t
)));
1054 if (thisalign
> bestalign
)
1055 best
= t
, bestalign
= thisalign
;
1057 return c_alignof (TREE_TYPE (TREE_TYPE (best
)));
1061 /* ANSI says arrays and fns are converted inside comma.
1062 But we can't convert them in build_compound_expr
1063 because that would break commas in lvalues.
1064 So do the conversion here if operand was a comma. */
1065 if (TREE_CODE (expr
) == COMPOUND_EXPR
1066 && (TREE_CODE (TREE_TYPE (expr
)) == ARRAY_TYPE
1067 || TREE_CODE (TREE_TYPE (expr
)) == FUNCTION_TYPE
))
1068 expr
= default_conversion (expr
);
1069 return c_alignof (TREE_TYPE (expr
));
1073 /* Create an ARRAY_REF, checking for the user doing things backwards
1077 grok_array_decl (array_expr
, index_exp
)
1078 tree array_expr
, index_exp
;
1080 tree type
= TREE_TYPE (array_expr
);
1081 tree p1
, p2
, i1
, i2
;
1083 if (type
== error_mark_node
|| index_exp
== error_mark_node
)
1084 return error_mark_node
;
1085 if (processing_template_decl
)
1086 return build_min (ARRAY_REF
, type
? TREE_TYPE (type
) : NULL_TREE
,
1087 array_expr
, index_exp
);
1089 if (type
== NULL_TREE
)
1091 /* Something has gone very wrong. Assume we are mistakenly reducing
1092 an expression instead of a declaration. */
1093 error ("parser may be lost: is there a '{' missing somewhere?");
1097 if (TREE_CODE (type
) == OFFSET_TYPE
1098 || TREE_CODE (type
) == REFERENCE_TYPE
)
1099 type
= TREE_TYPE (type
);
1101 /* If they have an `operator[]', use that. */
1102 if (IS_AGGR_TYPE (type
) || IS_AGGR_TYPE (TREE_TYPE (index_exp
)))
1103 return build_opfncall (ARRAY_REF
, LOOKUP_NORMAL
,
1104 array_expr
, index_exp
, NULL_TREE
);
1106 /* Otherwise, create an ARRAY_REF for a pointer or array type. It
1107 is a little-known fact that, if `a' is an array and `i' is an
1108 int, you can write `i[a]', which means the same thing as `a[i]'. */
1110 if (TREE_CODE (type
) == ARRAY_TYPE
)
1113 p1
= build_expr_type_conversion (WANT_POINTER
, array_expr
, 0);
1115 if (TREE_CODE (TREE_TYPE (index_exp
)) == ARRAY_TYPE
)
1118 p2
= build_expr_type_conversion (WANT_POINTER
, index_exp
, 0);
1120 i1
= build_expr_type_conversion (WANT_INT
| WANT_ENUM
, array_expr
, 0);
1121 i2
= build_expr_type_conversion (WANT_INT
| WANT_ENUM
, index_exp
, 0);
1123 if ((p1
&& i2
) && (i1
&& p2
))
1124 error ("ambiguous conversion for array subscript");
1127 array_expr
= p1
, index_exp
= i2
;
1129 array_expr
= p2
, index_exp
= i1
;
1132 cp_error ("invalid types `%T[%T]' for array subscript",
1133 type
, TREE_TYPE (index_exp
));
1134 return error_mark_node
;
1137 if (array_expr
== error_mark_node
|| index_exp
== error_mark_node
)
1138 error ("ambiguous conversion for array subscript");
1140 return build_array_ref (array_expr
, index_exp
);
1143 /* Given the cast expression EXP, checking out its validity. Either return
1144 an error_mark_node if there was an unavoidable error, return a cast to
1145 void for trying to delete a pointer w/ the value 0, or return the
1146 call to delete. If DOING_VEC is 1, we handle things differently
1147 for doing an array delete. If DOING_VEC is 2, they gave us the
1148 array size as an argument to delete.
1149 Implements ARM $5.3.4. This is called from the parser. */
1152 delete_sanity (exp
, size
, doing_vec
, use_global_delete
)
1154 int doing_vec
, use_global_delete
;
1157 /* For a regular vector delete (aka, no size argument) we will pass
1158 this down as a NULL_TREE into build_vec_delete. */
1159 tree maxindex
= NULL_TREE
;
1161 if (exp
== error_mark_node
)
1164 if (processing_template_decl
)
1166 t
= build_min (DELETE_EXPR
, void_type_node
, exp
, size
);
1167 DELETE_EXPR_USE_GLOBAL (t
) = use_global_delete
;
1168 DELETE_EXPR_USE_VEC (t
) = doing_vec
;
1172 if (TREE_CODE (exp
) == OFFSET_REF
)
1173 exp
= resolve_offset_ref (exp
);
1174 exp
= convert_from_reference (exp
);
1175 t
= stabilize_reference (exp
);
1176 t
= build_expr_type_conversion (WANT_POINTER
, t
, 1);
1178 if (t
== NULL_TREE
|| t
== error_mark_node
)
1180 cp_error ("type `%#T' argument given to `delete', expected pointer",
1182 return error_mark_node
;
1187 maxindex
= build_binary_op (MINUS_EXPR
, size
, integer_one_node
, 1);
1188 pedwarn ("anachronistic use of array size in vector delete");
1191 type
= TREE_TYPE (t
);
1193 /* As of Valley Forge, you can delete a pointer to const. */
1195 /* You can't delete functions. */
1196 if (TREE_CODE (TREE_TYPE (type
)) == FUNCTION_TYPE
)
1198 error ("cannot delete a function");
1199 return error_mark_node
;
1202 /* An array can't have been allocated by new, so complain. */
1203 if (TREE_CODE (t
) == ADDR_EXPR
1204 && TREE_CODE (TREE_OPERAND (t
, 0)) == VAR_DECL
1205 && TREE_CODE (TREE_TYPE (TREE_OPERAND (t
, 0))) == ARRAY_TYPE
)
1206 cp_warning ("deleting array `%#D'", TREE_OPERAND (t
, 0));
1208 /* Deleting a pointer with the value zero is valid and has no effect. */
1209 if (integer_zerop (t
))
1210 return build1 (NOP_EXPR
, void_type_node
, t
);
1213 return build_vec_delete (t
, maxindex
, integer_one_node
,
1214 integer_zero_node
, use_global_delete
);
1217 if (IS_AGGR_TYPE (TREE_TYPE (type
))
1218 && TYPE_GETS_REG_DELETE (TREE_TYPE (type
)))
1220 /* Only do access checking here; we'll be calling op delete
1221 from the destructor. */
1222 tree tmp
= build_op_delete_call (DELETE_EXPR
, t
, size_zero_node
,
1223 LOOKUP_NORMAL
, NULL_TREE
);
1224 if (tmp
== error_mark_node
)
1225 return error_mark_node
;
1228 return build_delete (type
, t
, integer_three_node
,
1229 LOOKUP_NORMAL
, use_global_delete
);
1233 /* Report an error if the indicated template declaration is not the
1234 sort of thing that should be a member template. */
1237 check_member_template (tmpl
)
1242 my_friendly_assert (TREE_CODE (tmpl
) == TEMPLATE_DECL
, 0);
1243 decl
= DECL_TEMPLATE_RESULT (tmpl
);
1245 if (TREE_CODE (decl
) == FUNCTION_DECL
1246 || (TREE_CODE (decl
) == TYPE_DECL
1247 && IS_AGGR_TYPE (TREE_TYPE (decl
))))
1249 if (current_function_decl
)
1250 /* 14.5.2.2 [temp.mem]
1252 A local class shall not have member templates. */
1253 cp_error ("declaration of member template `%#D' in local class",
1256 if (TREE_CODE (decl
) == FUNCTION_DECL
&& DECL_VIRTUAL_P (decl
))
1258 /* 14.5.2.3 [temp.mem]
1260 A member function template shall not be virtual. */
1262 ("invalid use of `virtual' in template declaration of `%#D'",
1264 DECL_VIRTUAL_P (decl
) = 0;
1267 /* The debug-information generating code doesn't know what to do
1268 with member templates. */
1269 DECL_IGNORED_P (tmpl
) = 1;
1272 cp_error ("template declaration of `%#D'", decl
);
1275 /* Return true iff TYPE is a valid Java parameter or return type. */
1278 acceptable_java_type (type
)
1281 if (TREE_CODE (type
) == VOID_TYPE
|| TYPE_FOR_JAVA (type
))
1283 if (TREE_CODE (type
) == POINTER_TYPE
)
1285 type
= TREE_TYPE (type
);
1286 if (TREE_CODE (type
) == RECORD_TYPE
)
1289 if (! TYPE_FOR_JAVA (type
))
1291 if (! CLASSTYPE_TEMPLATE_INFO (type
))
1293 args
= CLASSTYPE_TI_ARGS (type
);
1294 i
= TREE_VEC_LENGTH (args
);
1297 type
= TREE_VEC_ELT (args
, i
);
1298 if (TREE_CODE (type
) == POINTER_TYPE
)
1299 type
= TREE_TYPE (type
);
1300 if (! TYPE_FOR_JAVA (type
))
1309 /* For a METHOD in a Java class CTYPE, return 1 if
1310 the parameter and return types are valid Java types.
1311 Otherwise, print appropriate error messages, and return 0. */
1314 check_java_method (method
)
1318 tree arg_types
= TYPE_ARG_TYPES (TREE_TYPE (method
));
1319 tree ret_type
= TREE_TYPE (TREE_TYPE (method
));
1320 if (! acceptable_java_type (ret_type
))
1322 cp_error ("Java method '%D' has non-Java return type `%T'",
1326 for (; arg_types
!= NULL_TREE
; arg_types
= TREE_CHAIN (arg_types
))
1328 tree type
= TREE_VALUE (arg_types
);
1329 if (! acceptable_java_type (type
))
1331 cp_error ("Java method '%D' has non-Java parameter type `%T'",
1336 return jerr
? 0 : 1;
1339 /* Sanity check: report error if this function FUNCTION is not
1340 really a member of the class (CTYPE) it is supposed to belong to.
1341 CNAME is the same here as it is for grokclassfn above. */
1344 check_classfn (ctype
, function
)
1345 tree ctype
, function
;
1347 tree fn_name
= DECL_NAME (function
);
1348 tree fndecl
, fndecls
;
1349 tree method_vec
= CLASSTYPE_METHOD_VEC (complete_type (ctype
));
1352 tree templates
= NULL_TREE
;
1354 if (method_vec
!= 0)
1356 methods
= &TREE_VEC_ELT (method_vec
, 0);
1357 end
= TREE_VEC_END (method_vec
);
1359 /* First suss out ctors and dtors. */
1360 if (*methods
&& fn_name
== DECL_NAME (OVL_CURRENT (*methods
))
1361 && DECL_CONSTRUCTOR_P (function
))
1363 if (*++methods
&& fn_name
== DECL_NAME (OVL_CURRENT (*methods
))
1364 && DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (function
)))
1367 while (++methods
!= end
&& *methods
)
1370 if (fn_name
== DECL_NAME (OVL_CURRENT (*methods
)))
1373 for (fndecls
= *methods
; fndecls
!= NULL_TREE
;
1374 fndecls
= OVL_NEXT (fndecls
))
1376 fndecl
= OVL_CURRENT (fndecls
);
1377 /* The DECL_ASSEMBLER_NAME for a TEMPLATE_DECL, or
1378 for a for member function of a template class, is
1379 not mangled, so the check below does not work
1380 correctly in that case. Since mangled destructor
1381 names do not include the type of the arguments,
1382 we can't use this short-cut for them, either.
1383 (It's not legal to declare arguments for a
1384 destructor, but some people try.) */
1385 if (!DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (function
))
1386 && (DECL_ASSEMBLER_NAME (function
)
1387 != DECL_NAME (function
))
1388 && (DECL_ASSEMBLER_NAME (fndecl
)
1389 != DECL_NAME (fndecl
))
1390 && (DECL_ASSEMBLER_NAME (function
)
1391 == DECL_ASSEMBLER_NAME (fndecl
)))
1394 /* We cannot simply call decls_match because this
1395 doesn't work for static member functions that are
1396 pretending to be methods, and because the name
1397 may have been changed by asm("new_name"). */
1398 if (DECL_NAME (function
) == DECL_NAME (fndecl
))
1400 tree p1
= TYPE_ARG_TYPES (TREE_TYPE (function
));
1401 tree p2
= TYPE_ARG_TYPES (TREE_TYPE (fndecl
));
1403 /* Get rid of the this parameter on functions that become
1405 if (DECL_STATIC_FUNCTION_P (fndecl
)
1406 && TREE_CODE (TREE_TYPE (function
)) == METHOD_TYPE
)
1407 p1
= TREE_CHAIN (p1
);
1409 if (same_type_p (TREE_TYPE (TREE_TYPE (function
)),
1410 TREE_TYPE (TREE_TYPE (fndecl
)))
1411 && compparms (p1
, p2
)
1412 && (DECL_TEMPLATE_SPECIALIZATION (function
)
1413 == DECL_TEMPLATE_SPECIALIZATION (fndecl
))
1414 && (!DECL_TEMPLATE_SPECIALIZATION (function
)
1415 || (DECL_TI_TEMPLATE (function
)
1416 == DECL_TI_TEMPLATE (fndecl
))))
1419 if (is_member_template (fndecl
))
1420 /* This function might be an instantiation
1421 or specialization of fndecl. */
1423 scratch_tree_cons (NULL_TREE
, fndecl
, templates
);
1428 else if (TREE_CODE (fndecl
) == TEMPLATE_DECL
1429 && DECL_CONV_FN_P (fndecl
)
1430 && DECL_CONV_FN_P (function
))
1431 /* The method in the class is a member template
1432 conversion operator. We are declaring another
1433 conversion operator. It is possible that even though
1434 the names don't match, there is some specialization
1437 scratch_tree_cons (NULL_TREE
, fndecl
, templates
);
1442 /* This function might be an instantiation or a specialization.
1443 We should verify that this is possible. For now, we simply
1444 return NULL_TREE, which lets the caller know that this function
1445 is new, but we don't print an error message. */
1448 if (methods
!= end
&& *methods
)
1450 tree fndecl
= *methods
;
1451 cp_error ("prototype for `%#D' does not match any in class `%T'",
1453 cp_error_at ("candidate%s: %+#D", OVL_NEXT (fndecl
) ? "s are" : " is",
1454 OVL_CURRENT (fndecl
));
1455 while (fndecl
= OVL_NEXT (fndecl
), fndecl
)
1456 cp_error_at (" %#D", OVL_CURRENT(fndecl
));
1461 cp_error ("no `%#D' member function declared in class `%T'",
1465 /* If we did not find the method in the class, add it to avoid
1466 spurious errors (unless the CTYPE is not yet defined, in which
1467 case we'll only confuse ourselves when the function is declared
1468 properly within the class. */
1469 if (TYPE_SIZE (ctype
))
1470 add_method (ctype
, methods
, function
);
1474 /* Process the specs, declarator (NULL if omitted) and width (NULL if omitted)
1475 of a structure component, returning a FIELD_DECL node.
1476 QUALS is a list of type qualifiers for this decl (such as for declaring
1477 const member functions).
1479 This is done during the parsing of the struct declaration.
1480 The FIELD_DECL nodes are chained together and the lot of them
1481 are ultimately passed to `build_struct' to make the RECORD_TYPE node.
1485 If class A defines that certain functions in class B are friends, then
1486 the way I have set things up, it is B who is interested in permission
1487 granted by A. However, it is in A's context that these declarations
1488 are parsed. By returning a void_type_node, class A does not attempt
1489 to incorporate the declarations of the friends within its structure.
1491 DO NOT MAKE ANY CHANGES TO THIS CODE WITHOUT MAKING CORRESPONDING
1492 CHANGES TO CODE IN `start_method'. */
1495 grokfield (declarator
, declspecs
, init
, asmspec_tree
, attrlist
)
1496 tree declarator
, declspecs
, init
, asmspec_tree
, attrlist
;
1498 register tree value
;
1500 int flags
= LOOKUP_ONLYCONVERTING
;
1502 /* Convert () initializers to = initializers. */
1503 if (init
== NULL_TREE
&& declarator
!= NULL_TREE
1504 && TREE_CODE (declarator
) == CALL_EXPR
1505 && TREE_OPERAND (declarator
, 0)
1506 && (TREE_CODE (TREE_OPERAND (declarator
, 0)) == IDENTIFIER_NODE
1507 || TREE_CODE (TREE_OPERAND (declarator
, 0)) == SCOPE_REF
)
1508 && parmlist_is_exprlist (TREE_OPERAND (declarator
, 1)))
1510 init
= TREE_OPERAND (declarator
, 1);
1511 declarator
= TREE_OPERAND (declarator
, 0);
1515 if (declspecs
== NULL_TREE
1516 && TREE_CODE (declarator
) == SCOPE_REF
1517 && TREE_CODE (TREE_OPERAND (declarator
, 1)) == IDENTIFIER_NODE
)
1519 /* Access declaration */
1520 if (! IS_AGGR_TYPE_CODE (TREE_CODE (TREE_OPERAND (declarator
, 0))))
1522 else if (TREE_COMPLEXITY (declarator
) == current_class_depth
)
1523 pop_nested_class (1);
1524 return do_class_using_decl (declarator
);
1528 && TREE_CODE (init
) == TREE_LIST
1529 && TREE_VALUE (init
) == error_mark_node
1530 && TREE_CHAIN (init
) == NULL_TREE
)
1533 value
= grokdeclarator (declarator
, declspecs
, FIELD
, init
!= 0, NULL_TREE
);
1534 if (! value
|| value
== error_mark_node
)
1535 /* friend or constructor went bad. */
1538 /* Pass friendly classes back. */
1539 if (TREE_CODE (value
) == VOID_TYPE
)
1540 return void_type_node
;
1542 if (DECL_NAME (value
) != NULL_TREE
1543 && IDENTIFIER_POINTER (DECL_NAME (value
))[0] == '_'
1544 && ! strcmp (IDENTIFIER_POINTER (DECL_NAME (value
)), "_vptr"))
1545 cp_error ("member `%D' conflicts with virtual function table field name",
1548 /* Stash away type declarations. */
1549 if (TREE_CODE (value
) == TYPE_DECL
)
1551 DECL_NONLOCAL (value
) = 1;
1552 DECL_CONTEXT (value
) = current_class_type
;
1553 DECL_CLASS_CONTEXT (value
) = current_class_type
;
1555 /* Now that we've updated the context, we need to remangle the
1556 name for this TYPE_DECL. */
1557 DECL_ASSEMBLER_NAME (value
) = DECL_NAME (value
);
1558 if (!uses_template_parms (value
))
1559 DECL_ASSEMBLER_NAME (value
) =
1560 get_identifier (build_overload_name (TREE_TYPE (value
), 1, 1));
1562 pushdecl_class_level (value
);
1566 if (IS_SIGNATURE (current_class_type
)
1567 && TREE_CODE (value
) != FUNCTION_DECL
)
1569 error ("field declaration not allowed in signature");
1570 return void_type_node
;
1573 if (DECL_IN_AGGR_P (value
))
1575 cp_error ("`%D' is already defined in `%T'", value
,
1576 DECL_CONTEXT (value
));
1577 return void_type_node
;
1581 asmspec
= TREE_STRING_POINTER (asmspec_tree
);
1585 if (IS_SIGNATURE (current_class_type
)
1586 && TREE_CODE (value
) == FUNCTION_DECL
)
1588 error ("function declarations cannot have initializers in signature");
1591 else if (TREE_CODE (value
) == FUNCTION_DECL
)
1593 grok_function_init (value
, init
);
1596 else if (pedantic
&& TREE_CODE (value
) != VAR_DECL
)
1597 /* Already complained in grokdeclarator. */
1601 /* We allow initializers to become parameters to base
1603 if (TREE_CODE (init
) == TREE_LIST
)
1605 if (TREE_CHAIN (init
) == NULL_TREE
)
1606 init
= TREE_VALUE (init
);
1608 init
= digest_init (TREE_TYPE (value
), init
, (tree
*)0);
1611 if (TREE_CODE (init
) == CONST_DECL
)
1612 init
= DECL_INITIAL (init
);
1613 else if (TREE_READONLY_DECL_P (init
))
1614 init
= decl_constant_value (init
);
1615 else if (TREE_CODE (init
) == CONSTRUCTOR
)
1616 init
= digest_init (TREE_TYPE (value
), init
, (tree
*)0);
1617 my_friendly_assert (TREE_PERMANENT (init
), 192);
1618 if (init
== error_mark_node
)
1619 /* We must make this look different than `error_mark_node'
1620 because `decl_const_value' would mis-interpret it
1621 as only meaning that this VAR_DECL is defined. */
1622 init
= build1 (NOP_EXPR
, TREE_TYPE (value
), init
);
1623 else if (processing_template_decl
)
1625 else if (! TREE_CONSTANT (init
))
1627 /* We can allow references to things that are effectively
1628 static, since references are initialized with the address. */
1629 if (TREE_CODE (TREE_TYPE (value
)) != REFERENCE_TYPE
1630 || (TREE_STATIC (init
) == 0
1631 && (TREE_CODE_CLASS (TREE_CODE (init
)) != 'd'
1632 || DECL_EXTERNAL (init
) == 0)))
1634 error ("field initializer is not constant");
1635 init
= error_mark_node
;
1641 /* The corresponding pop_obstacks is in cp_finish_decl. */
1642 push_obstacks_nochange ();
1644 if (processing_template_decl
&& ! current_function_decl
1645 && (TREE_CODE (value
) == VAR_DECL
|| TREE_CODE (value
) == FUNCTION_DECL
))
1646 value
= push_template_decl (value
);
1648 /* Check to see if a field redeclares a template parameter. */
1649 if (current_template_parms
1650 && TREE_CODE (declarator
) == IDENTIFIER_NODE
1651 && IDENTIFIER_LOCAL_VALUE (declarator
))
1653 tree olddecl
= IDENTIFIER_LOCAL_VALUE (declarator
);
1654 if (decl_template_parm_p (olddecl
))
1656 cp_error ("redeclaration of template parameter `%T'", declarator
);
1657 cp_error_at (" previously declared here `%#D'", olddecl
);
1662 cplus_decl_attributes (value
, TREE_PURPOSE (attrlist
),
1663 TREE_VALUE (attrlist
));
1665 if (TREE_CODE (value
) == VAR_DECL
)
1667 my_friendly_assert (TREE_PUBLIC (value
), 0);
1669 /* We cannot call pushdecl here, because that would
1670 fill in the value of our TREE_CHAIN. Instead, we
1671 modify cp_finish_decl to do the right thing, namely, to
1672 put this decl out straight away. */
1673 /* current_class_type can be NULL_TREE in case of error. */
1674 if (asmspec
== 0 && current_class_type
)
1676 TREE_PUBLIC (value
) = 1;
1677 DECL_INITIAL (value
) = error_mark_node
;
1678 DECL_ASSEMBLER_NAME (value
)
1679 = build_static_name (current_class_type
, DECL_NAME (value
));
1681 if (! processing_template_decl
)
1682 pending_statics
= perm_tree_cons (NULL_TREE
, value
, pending_statics
);
1684 /* Static consts need not be initialized in the class definition. */
1685 if (init
!= NULL_TREE
&& TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (value
)))
1687 static int explanation
= 0;
1689 error ("initializer invalid for static member with constructor");
1690 if (explanation
++ == 0)
1691 error ("(you really want to initialize it separately)");
1694 /* Force the compiler to know when an uninitialized static
1695 const member is being used. */
1696 if (CP_TYPE_CONST_P (TREE_TYPE (value
)) && init
== 0)
1697 TREE_USED (value
) = 1;
1698 DECL_INITIAL (value
) = init
;
1699 DECL_IN_AGGR_P (value
) = 1;
1700 DECL_CONTEXT (value
) = current_class_type
;
1701 DECL_CLASS_CONTEXT (value
) = current_class_type
;
1703 cp_finish_decl (value
, init
, asmspec_tree
, 1, flags
);
1704 pushdecl_class_level (value
);
1707 if (TREE_CODE (value
) == FIELD_DECL
)
1711 /* This must override the asm specifier which was placed
1712 by grokclassfn. Lay this out fresh. */
1713 DECL_RTL (value
) = NULL_RTX
;
1714 DECL_ASSEMBLER_NAME (value
) = get_identifier (asmspec
);
1716 if (DECL_INITIAL (value
) == error_mark_node
)
1717 init
= error_mark_node
;
1718 cp_finish_decl (value
, init
, asmspec_tree
, 1, flags
);
1719 DECL_INITIAL (value
) = init
;
1720 DECL_IN_AGGR_P (value
) = 1;
1723 if (TREE_CODE (value
) == FUNCTION_DECL
)
1727 /* This must override the asm specifier which was placed
1728 by grokclassfn. Lay this out fresh. */
1729 DECL_RTL (value
) = NULL_RTX
;
1730 DECL_ASSEMBLER_NAME (value
) = get_identifier (asmspec
);
1732 cp_finish_decl (value
, init
, asmspec_tree
, 1, flags
);
1734 /* Pass friends back this way. */
1735 if (DECL_FRIEND_P (value
))
1736 return void_type_node
;
1738 #if 0 /* Just because a fn is declared doesn't mean we'll try to define it. */
1739 if (current_function_decl
&& ! IS_SIGNATURE (current_class_type
))
1740 cp_error ("method `%#D' of local class must be defined in class body",
1744 DECL_IN_AGGR_P (value
) = 1;
1747 my_friendly_abort (21);
1752 /* Like `grokfield', but for bitfields.
1753 WIDTH is non-NULL for bit fields only, and is an INTEGER_CST node. */
1756 grokbitfield (declarator
, declspecs
, width
)
1757 tree declarator
, declspecs
, width
;
1759 register tree value
= grokdeclarator (declarator
, declspecs
, BITFIELD
,
1762 if (! value
) return NULL_TREE
; /* friends went bad. */
1764 /* Pass friendly classes back. */
1765 if (TREE_CODE (value
) == VOID_TYPE
)
1766 return void_type_node
;
1768 if (TREE_CODE (value
) == TYPE_DECL
)
1770 cp_error ("cannot declare `%D' to be a bitfield type", value
);
1774 /* Usually, finish_struct_1 catches bitifields with invalid types.
1775 But, in the case of bitfields with function type, we confuse
1776 ourselves into thinking they are member functions, so we must
1778 if (TREE_CODE (value
) == FUNCTION_DECL
)
1780 cp_error ("cannot declare bitfield `%D' with funcion type",
1785 if (IS_SIGNATURE (current_class_type
))
1787 error ("field declaration not allowed in signature");
1788 return void_type_node
;
1791 if (DECL_IN_AGGR_P (value
))
1793 cp_error ("`%D' is already defined in the class %T", value
,
1794 DECL_CONTEXT (value
));
1795 return void_type_node
;
1798 GNU_xref_member (current_class_name
, value
);
1800 if (TREE_STATIC (value
))
1802 cp_error ("static member `%D' cannot be a bitfield", value
);
1805 cp_finish_decl (value
, NULL_TREE
, NULL_TREE
, 0, 0);
1807 if (width
!= error_mark_node
)
1809 constant_expression_warning (width
);
1810 DECL_INITIAL (value
) = width
;
1811 SET_DECL_C_BIT_FIELD (value
);
1814 DECL_IN_AGGR_P (value
) = 1;
1819 grokoptypename (declspecs
, declarator
)
1820 tree declspecs
, declarator
;
1822 tree t
= grokdeclarator (declarator
, declspecs
, TYPENAME
, 0, NULL_TREE
);
1823 return build_typename_overload (t
);
1826 /* When a function is declared with an initializer,
1827 do the right thing. Currently, there are two possibilities:
1832 // initialization possibility #1.
1833 virtual void f () = 0;
1855 // initialization possibility #2
1862 copy_assignment_arg_p (parmtype
, virtualp
)
1864 int virtualp ATTRIBUTE_UNUSED
;
1866 if (current_class_type
== NULL_TREE
)
1869 if (TREE_CODE (parmtype
) == REFERENCE_TYPE
)
1870 parmtype
= TREE_TYPE (parmtype
);
1872 if ((TYPE_MAIN_VARIANT (parmtype
) == current_class_type
)
1874 /* Non-standard hack to support old Booch components. */
1875 || (! virtualp
&& DERIVED_FROM_P (parmtype
, current_class_type
))
1884 grok_function_init (decl
, init
)
1888 /* An initializer for a function tells how this function should
1890 tree type
= TREE_TYPE (decl
);
1892 if (TREE_CODE (type
) == FUNCTION_TYPE
)
1893 cp_error ("initializer specified for non-member function `%D'", decl
);
1895 /* We'll check for this in finish_struct_1. */
1896 else if (DECL_VINDEX (decl
) == NULL_TREE
)
1897 cp_error ("initializer specified for non-virtual method `%D'", decl
);
1899 else if (integer_zerop (init
))
1902 /* Mark this function as being "defined". */
1903 DECL_INITIAL (decl
) = error_mark_node
;
1904 /* pure virtual destructors must be defined. */
1905 /* pure virtual needs to be defined (as abort) only when put in
1906 vtbl. For wellformed call, it should be itself. pr4737 */
1907 if (!DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (decl
)))
1909 extern tree abort_fndecl
;
1910 /* Give this node rtl from `abort'. */
1911 DECL_RTL (decl
) = DECL_RTL (abort_fndecl
);
1914 DECL_ABSTRACT_VIRTUAL_P (decl
) = 1;
1915 if (DECL_NAME (decl
) == ansi_opname
[(int) MODIFY_EXPR
])
1918 = TREE_VALUE (TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (decl
))));
1920 if (copy_assignment_arg_p (parmtype
, 1))
1921 TYPE_HAS_ABSTRACT_ASSIGN_REF (current_class_type
) = 1;
1925 cp_error ("invalid initializer for virtual method `%D'", decl
);
1929 cplus_decl_attributes (decl
, attributes
, prefix_attributes
)
1930 tree decl
, attributes
, prefix_attributes
;
1932 if (decl
== NULL_TREE
|| decl
== void_type_node
)
1935 if (TREE_CODE (decl
) == TEMPLATE_DECL
)
1936 decl
= DECL_TEMPLATE_RESULT (decl
);
1938 decl_attributes (decl
, attributes
, prefix_attributes
);
1940 if (TREE_CODE (decl
) == TYPE_DECL
)
1941 SET_IDENTIFIER_TYPE_VALUE (DECL_NAME (decl
), TREE_TYPE (decl
));
1944 /* CONSTRUCTOR_NAME:
1945 Return the name for the constructor (or destructor) for the
1946 specified class. Argument can be RECORD_TYPE, TYPE_DECL, or
1947 IDENTIFIER_NODE. When given a template, this routine doesn't
1948 lose the specialization. */
1951 constructor_name_full (thing
)
1954 if (TREE_CODE (thing
) == TEMPLATE_TYPE_PARM
1955 || TREE_CODE (thing
) == TEMPLATE_TEMPLATE_PARM
1956 || TREE_CODE (thing
) == TYPENAME_TYPE
)
1957 thing
= TYPE_NAME (thing
);
1958 else if (IS_AGGR_TYPE_CODE (TREE_CODE (thing
)))
1960 if (TYPE_WAS_ANONYMOUS (thing
) && TYPE_HAS_CONSTRUCTOR (thing
))
1961 thing
= DECL_NAME (OVL_CURRENT (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (thing
), 0)));
1963 thing
= TYPE_NAME (thing
);
1965 if (TREE_CODE (thing
) == TYPE_DECL
1966 || (TREE_CODE (thing
) == TEMPLATE_DECL
1967 && TREE_CODE (DECL_TEMPLATE_RESULT (thing
)) == TYPE_DECL
))
1968 thing
= DECL_NAME (thing
);
1969 my_friendly_assert (TREE_CODE (thing
) == IDENTIFIER_NODE
, 197);
1973 /* CONSTRUCTOR_NAME:
1974 Return the name for the constructor (or destructor) for the
1975 specified class. Argument can be RECORD_TYPE, TYPE_DECL, or
1976 IDENTIFIER_NODE. When given a template, return the plain
1977 unspecialized name. */
1980 constructor_name (thing
)
1984 thing
= constructor_name_full (thing
);
1985 t
= IDENTIFIER_TEMPLATE (thing
);
1991 /* Cache the value of this class's main virtual function table pointer
1992 in a register variable. This will save one indirection if a
1993 more than one virtual function call is made this function. */
1998 extern tree base_init_expr
;
2000 if (base_init_expr
== 0
2001 && DECL_CONSTRUCTOR_P (current_function_decl
))
2003 if (processing_template_decl
)
2004 add_tree (build_min_nt
2006 current_member_init_list
, current_base_init_list
));
2008 emit_base_init (current_class_type
, 0);
2012 /* Record the existence of an addressable inline function. */
2015 mark_inline_for_output (decl
)
2018 decl
= DECL_MAIN_VARIANT (decl
);
2019 if (DECL_SAVED_INLINE (decl
))
2021 my_friendly_assert (TREE_PERMANENT (decl
), 363);
2022 DECL_SAVED_INLINE (decl
) = 1;
2024 if (DECL_PENDING_INLINE_INFO (decl
) != 0
2025 && ! DECL_PENDING_INLINE_INFO (decl
)->deja_vu
)
2027 struct pending_inline
*t
= pending_inlines
;
2028 my_friendly_assert (DECL_SAVED_INSNS (decl
) == 0, 198);
2031 if (t
== DECL_PENDING_INLINE_INFO (decl
))
2037 t
= DECL_PENDING_INLINE_INFO (decl
);
2038 t
->next
= pending_inlines
;
2039 pending_inlines
= t
;
2041 DECL_PENDING_INLINE_INFO (decl
) = 0;
2044 saved_inlines
= perm_tree_cons (NULL_TREE
, decl
, saved_inlines
);
2050 temp_name_counter
= 0;
2053 /* Hand off a unique name which can be used for variable we don't really
2054 want to know about anyway, for example, the anonymous variables which
2055 are needed to make references work. Declare this thing so we can use it.
2056 The variable created will be of type TYPE.
2058 STATICP is nonzero if this variable should be static. */
2061 get_temp_name (type
, staticp
)
2065 char buf
[sizeof (AUTO_TEMP_FORMAT
) + 20];
2067 int toplev
= toplevel_bindings_p ();
2069 push_obstacks_nochange ();
2070 if (toplev
|| staticp
)
2072 end_temporary_allocation ();
2073 sprintf (buf
, AUTO_TEMP_FORMAT
, global_temp_name_counter
++);
2074 decl
= pushdecl_top_level (build_decl (VAR_DECL
, get_identifier (buf
), type
));
2078 sprintf (buf
, AUTO_TEMP_FORMAT
, temp_name_counter
++);
2079 decl
= pushdecl (build_decl (VAR_DECL
, get_identifier (buf
), type
));
2081 TREE_USED (decl
) = 1;
2082 TREE_STATIC (decl
) = staticp
;
2083 DECL_ARTIFICIAL (decl
) = 1;
2085 /* If this is a local variable, then lay out its rtl now.
2086 Otherwise, callers of this function are responsible for dealing
2087 with this variable's rtl. */
2091 expand_decl_init (decl
);
2098 /* Get a variable which we can use for multiple assignments.
2099 It is not entered into current_binding_level, because
2100 that breaks things when it comes time to do final cleanups
2101 (which take place "outside" the binding contour of the function). */
2104 get_temp_regvar (type
, init
)
2109 decl
= build_decl (VAR_DECL
, NULL_TREE
, type
);
2110 TREE_USED (decl
) = 1;
2111 DECL_REGISTER (decl
) = 1;
2112 DECL_ARTIFICIAL (decl
) = 1;
2114 DECL_RTL (decl
) = assign_temp (type
, 2, 0, 1);
2115 /* We can expand these without fear, since they cannot need
2116 constructors or destructors. */
2117 expand_expr (build_modify_expr (decl
, INIT_EXPR
, init
),
2118 NULL_RTX
, VOIDmode
, 0);
2123 /* Hunts through the global anonymous union ANON_DECL, building
2124 appropriate VAR_DECLs. Stores cleanups on the list of ELEMS, and
2125 returns a VAR_DECL whose size is the same as the size of the
2126 ANON_DECL, if one is available. */
2129 build_anon_union_vars (anon_decl
, elems
, static_p
, external_p
)
2135 tree type
= TREE_TYPE (anon_decl
);
2136 tree main_decl
= NULL_TREE
;
2139 for (field
= TYPE_FIELDS (type
);
2141 field
= TREE_CHAIN (field
))
2144 if (TREE_CODE (field
) != FIELD_DECL
)
2147 if (TREE_PRIVATE (field
))
2148 cp_pedwarn_at ("private member `%#D' in anonymous union", field
);
2149 else if (TREE_PROTECTED (field
))
2150 cp_pedwarn_at ("protected member `%#D' in anonymous union", field
);
2152 if (DECL_NAME (field
) == NULL_TREE
2153 && TREE_CODE (TREE_TYPE (field
)) == UNION_TYPE
)
2155 decl
= build_anon_union_vars (field
, elems
, static_p
, external_p
);
2159 else if (DECL_NAME (field
) == NULL_TREE
)
2163 decl
= build_decl (VAR_DECL
, DECL_NAME (field
), TREE_TYPE (field
));
2164 /* tell `pushdecl' that this is not tentative. */
2165 DECL_INITIAL (decl
) = error_mark_node
;
2166 TREE_PUBLIC (decl
) = 0;
2167 TREE_STATIC (decl
) = static_p
;
2168 DECL_EXTERNAL (decl
) = external_p
;
2169 decl
= pushdecl (decl
);
2170 DECL_INITIAL (decl
) = NULL_TREE
;
2173 /* Only write out one anon union element--choose the one that
2174 can hold them all. */
2175 if (main_decl
== NULL_TREE
2176 && simple_cst_equal (DECL_SIZE (decl
),
2177 DECL_SIZE (anon_decl
)) == 1)
2180 /* ??? This causes there to be no debug info written out
2182 TREE_ASM_WRITTEN (decl
) = 1;
2184 if (DECL_NAME (field
) == NULL_TREE
2185 && TREE_CODE (TREE_TYPE (field
)) == UNION_TYPE
)
2186 /* The remainder of the processing was already done in the
2190 /* If there's a cleanup to do, it belongs in the
2191 TREE_PURPOSE of the following TREE_LIST. */
2192 *elems
= scratch_tree_cons (NULL_TREE
, decl
, *elems
);
2193 TREE_TYPE (*elems
) = type
;
2199 /* Finish off the processing of a UNION_TYPE structure.
2200 If there are static members, then all members are
2201 static, and must be laid out together. If the
2202 union is an anonymous union, we arrange for that
2203 as well. PUBLIC_P is nonzero if this union is
2204 not declared static. */
2207 finish_anon_union (anon_union_decl
)
2208 tree anon_union_decl
;
2210 tree type
= TREE_TYPE (anon_union_decl
);
2211 tree elems
= NULL_TREE
;
2213 int public_p
= TREE_PUBLIC (anon_union_decl
);
2214 int static_p
= TREE_STATIC (anon_union_decl
);
2215 int external_p
= DECL_EXTERNAL (anon_union_decl
);
2217 if (TYPE_FIELDS (type
) == NULL_TREE
)
2222 error ("global anonymous unions must be declared static");
2226 main_decl
= build_anon_union_vars (anon_union_decl
, &elems
,
2227 static_p
, external_p
);
2229 if (main_decl
== NULL_TREE
)
2231 warning ("anonymous union with no members");
2237 make_decl_rtl (main_decl
, 0, toplevel_bindings_p ());
2238 DECL_RTL (anon_union_decl
) = DECL_RTL (main_decl
);
2241 /* The following call assumes that there are never any cleanups
2242 for anonymous unions--a reasonable assumption. */
2243 expand_anon_union_decl (anon_union_decl
, NULL_TREE
, elems
);
2246 /* Finish processing a builtin type TYPE. It's name is NAME,
2247 its fields are in the array FIELDS. LEN is the number of elements
2248 in FIELDS minus one, or put another way, it is the maximum subscript
2251 It is given the same alignment as ALIGN_TYPE. */
2254 finish_builtin_type (type
, name
, fields
, len
, align_type
)
2263 TYPE_FIELDS (type
) = fields
[0];
2264 for (i
= 0; i
< len
; i
++)
2266 layout_type (TREE_TYPE (fields
[i
]));
2267 DECL_FIELD_CONTEXT (fields
[i
]) = type
;
2268 TREE_CHAIN (fields
[i
]) = fields
[i
+1];
2270 DECL_FIELD_CONTEXT (fields
[i
]) = type
;
2271 DECL_CLASS_CONTEXT (fields
[i
]) = type
;
2272 TYPE_ALIGN (type
) = TYPE_ALIGN (align_type
);
2274 #if 0 /* not yet, should get fixed properly later */
2275 TYPE_NAME (type
) = make_type_decl (get_identifier (name
), type
);
2277 TYPE_NAME (type
) = build_decl (TYPE_DECL
, get_identifier (name
), type
);
2279 TYPE_STUB_DECL (type
) = TYPE_NAME (type
);
2280 layout_decl (TYPE_NAME (type
), 0);
2283 /* Auxiliary functions to make type signatures for
2284 `operator new' and `operator delete' correspond to
2285 what compiler will be expecting. */
2288 coerce_new_type (type
)
2293 if (TREE_CODE (type
) == METHOD_TYPE
)
2294 type
= build_function_type (TREE_TYPE (type
), TREE_CHAIN (TYPE_ARG_TYPES (type
)));
2295 if (TREE_TYPE (type
) != ptr_type_node
)
2296 e1
= 1, error ("`operator new' must return type `void *'");
2298 /* Technically the type must be `size_t', but we may not know
2300 if (TYPE_ARG_TYPES (type
) == NULL_TREE
)
2301 e1
= 1, error ("`operator new' takes type `size_t' parameter");
2302 else if (TREE_CODE (TREE_VALUE (TYPE_ARG_TYPES (type
))) != INTEGER_TYPE
2303 || TYPE_PRECISION (TREE_VALUE (TYPE_ARG_TYPES (type
))) != TYPE_PRECISION (sizetype
))
2304 e2
= 1, error ("`operator new' takes type `size_t' as first parameter");
2306 type
= build_function_type (ptr_type_node
, tree_cons (NULL_TREE
, sizetype
, TREE_CHAIN (TYPE_ARG_TYPES (type
))));
2308 type
= build_function_type (ptr_type_node
, TYPE_ARG_TYPES (type
));
2313 coerce_delete_type (type
)
2320 tree arg_types
= TYPE_ARG_TYPES (type
);
2322 if (TREE_CODE (type
) == METHOD_TYPE
)
2324 type
= build_function_type (TREE_TYPE (type
), TREE_CHAIN (arg_types
));
2325 arg_types
= TREE_CHAIN (arg_types
);
2328 if (TREE_TYPE (type
) != void_type_node
)
2329 e1
= 1, error ("`operator delete' must return type `void'");
2331 if (arg_types
== NULL_TREE
2332 || TREE_VALUE (arg_types
) != ptr_type_node
)
2333 e2
= 1, error ("`operator delete' takes type `void *' as first parameter");
2337 && TREE_CHAIN (arg_types
)
2338 && TREE_CHAIN (arg_types
) != void_list_node
)
2340 /* Again, technically this argument must be `size_t', but again
2341 we may not know what that is. */
2342 tree t2
= TREE_VALUE (TREE_CHAIN (arg_types
));
2343 if (TREE_CODE (t2
) != INTEGER_TYPE
2344 || TYPE_PRECISION (t2
) != TYPE_PRECISION (sizetype
))
2345 e3
= 1, error ("second argument to `operator delete' must be of type `size_t'");
2346 else if (TREE_CHAIN (TREE_CHAIN (arg_types
)) != void_list_node
)
2349 if (TREE_CHAIN (TREE_CHAIN (arg_types
)))
2350 error ("too many arguments in declaration of `operator delete'");
2352 error ("`...' invalid in specification of `operator delete'");
2357 arg_types
= tree_cons (NULL_TREE
, ptr_type_node
,
2358 build_tree_list (NULL_TREE
, sizetype
));
2361 if (arg_types
== NULL_TREE
)
2362 arg_types
= tree_cons (NULL_TREE
, ptr_type_node
, void_list_node
);
2364 arg_types
= tree_cons (NULL_TREE
, ptr_type_node
, TREE_CHAIN (arg_types
));
2370 arg_types
= tree_cons (NULL_TREE
, ptr_type_node
,
2371 arg_types
? TREE_CHAIN (arg_types
): NULL_TREE
);
2373 type
= build_function_type (void_type_node
, arg_types
);
2378 extern tree abort_fndecl
;
2381 mark_vtable_entries (decl
)
2384 tree entries
= CONSTRUCTOR_ELTS (DECL_INITIAL (decl
));
2388 tree fnaddr
= (flag_vtable_thunks
? TREE_VALUE (TREE_CHAIN (entries
))
2389 : FNADDR_FROM_VTABLE_ENTRY (TREE_VALUE (entries
)));
2390 tree fn
= TREE_OPERAND (fnaddr
, 0);
2391 TREE_ADDRESSABLE (fn
) = 1;
2394 skip_rtti_stuff (&entries
);
2396 for (; entries
; entries
= TREE_CHAIN (entries
))
2398 tree fnaddr
= (flag_vtable_thunks
? TREE_VALUE (entries
)
2399 : FNADDR_FROM_VTABLE_ENTRY (TREE_VALUE (entries
)));
2400 tree fn
= TREE_OPERAND (fnaddr
, 0);
2401 TREE_ADDRESSABLE (fn
) = 1;
2402 if (DECL_LANG_SPECIFIC (fn
) && DECL_ABSTRACT_VIRTUAL_P (fn
))
2404 TREE_OPERAND (fnaddr
, 0) = fn
= copy_node (fn
);
2405 DECL_RTL (fn
) = DECL_RTL (abort_fndecl
);
2406 mark_used (abort_fndecl
);
2408 if (TREE_CODE (fn
) == THUNK_DECL
&& DECL_EXTERNAL (fn
))
2410 DECL_EXTERNAL (fn
) = 0;
2417 /* Set DECL up to have the closest approximation of "initialized common"
2418 linkage available. */
2421 comdat_linkage (decl
)
2425 make_decl_one_only (decl
);
2427 TREE_PUBLIC (decl
) = 0;
2429 if (DECL_LANG_SPECIFIC (decl
))
2430 DECL_COMDAT (decl
) = 1;
2433 /* For win32 we also want to put explicit instantiations in
2434 linkonce sections, so that they will be merged with implicit
2435 instantiations; otherwise we get duplicate symbol errors. */
2438 maybe_make_one_only (decl
)
2441 /* This is not necessary on targets that support weak symbols, because
2442 the implicit instantiations will defer to the explicit one. */
2443 if (! supports_one_only () || SUPPORTS_WEAK
)
2446 /* We can't set DECL_COMDAT on functions, or finish_file will think
2447 we can get away with not emitting them if they aren't used.
2448 We can't use make_decl_one_only for variables, because their
2449 DECL_INITIAL may not have been set properly yet. */
2451 if (TREE_CODE (decl
) == FUNCTION_DECL
)
2452 make_decl_one_only (decl
);
2454 comdat_linkage (decl
);
2457 /* Set TREE_PUBLIC and/or DECL_EXTERN on the vtable DECL,
2458 based on TYPE and other static flags.
2460 Note that anything public is tagged TREE_PUBLIC, whether
2461 it's public in this file or in another one. */
2464 import_export_vtable (decl
, type
, final
)
2468 if (DECL_INTERFACE_KNOWN (decl
))
2471 if (TYPE_FOR_JAVA (type
))
2473 TREE_PUBLIC (decl
) = 1;
2474 DECL_EXTERNAL (decl
) = 1;
2475 DECL_INTERFACE_KNOWN (decl
) = 1;
2477 else if (CLASSTYPE_INTERFACE_KNOWN (type
))
2479 TREE_PUBLIC (decl
) = 1;
2480 DECL_EXTERNAL (decl
) = ! CLASSTYPE_VTABLE_NEEDS_WRITING (type
);
2481 DECL_INTERFACE_KNOWN (decl
) = 1;
2483 /* Always make vtables weak. */
2485 comdat_linkage (decl
);
2489 /* We can only wait to decide if we have real non-inline virtual
2490 functions in our class, or if we come from a template. */
2492 int found
= CLASSTYPE_TEMPLATE_INSTANTIATION (type
);
2494 #ifndef MULTIPLE_SYMBOL_SPACES
2495 if (! found
&& ! final
)
2498 for (method
= TYPE_METHODS (type
); method
!= NULL_TREE
;
2499 method
= TREE_CHAIN (method
))
2500 if (DECL_VINDEX (method
) != NULL_TREE
2501 && ! DECL_THIS_INLINE (method
)
2502 && ! DECL_ABSTRACT_VIRTUAL_P (method
))
2510 if (final
|| ! found
)
2512 comdat_linkage (decl
);
2513 DECL_EXTERNAL (decl
) = 0;
2517 TREE_PUBLIC (decl
) = 1;
2518 DECL_EXTERNAL (decl
) = 1;
2523 /* Determine whether or not we want to specifically import or export CTYPE,
2524 using various heuristics. */
2527 import_export_class (ctype
)
2530 /* -1 for imported, 1 for exported. */
2531 int import_export
= 0;
2533 if (CLASSTYPE_INTERFACE_KNOWN (ctype
))
2536 #ifdef VALID_MACHINE_TYPE_ATTRIBUTE
2537 /* FIXME this should really use some sort of target-independent macro. */
2538 if (lookup_attribute ("dllimport", TYPE_ATTRIBUTES (ctype
)))
2540 else if (lookup_attribute ("dllexport", TYPE_ATTRIBUTES (ctype
)))
2544 /* If we got -fno-implicit-templates, we import template classes that
2545 weren't explicitly instantiated. */
2546 if (import_export
== 0
2547 && CLASSTYPE_IMPLICIT_INSTANTIATION (ctype
)
2548 && ! flag_implicit_templates
)
2551 #ifndef MULTIPLE_SYMBOL_SPACES
2552 /* Base our import/export status on that of the first non-inline,
2553 non-abstract virtual function, if any. */
2554 if (import_export
== 0
2555 && TYPE_VIRTUAL_P (ctype
)
2556 && ! CLASSTYPE_TEMPLATE_INSTANTIATION (ctype
))
2559 for (method
= TYPE_METHODS (ctype
); method
!= NULL_TREE
;
2560 method
= TREE_CHAIN (method
))
2562 if (DECL_VINDEX (method
) != NULL_TREE
2563 && !DECL_THIS_INLINE (method
)
2564 && !DECL_ABSTRACT_VIRTUAL_P (method
))
2566 import_export
= (DECL_REALLY_EXTERN (method
) ? -1 : 1);
2575 SET_CLASSTYPE_INTERFACE_KNOWN (ctype
);
2576 CLASSTYPE_VTABLE_NEEDS_WRITING (ctype
) = (import_export
> 0);
2577 CLASSTYPE_INTERFACE_ONLY (ctype
) = (import_export
< 0);
2581 /* We need to describe to the assembler the relationship between
2582 a vtable and the vtable of the parent class. */
2585 output_vtable_inherit (vars
)
2591 op
[0] = XEXP (DECL_RTL (vars
), 0); /* strip the mem ref */
2593 parent
= binfo_for_vtable (vars
);
2595 if (parent
== TYPE_BINFO (DECL_CONTEXT (vars
)))
2599 parent
= TYPE_BINFO_VTABLE (BINFO_TYPE (parent
));
2600 op
[1] = XEXP (DECL_RTL (parent
), 0); /* strip the mem ref */
2603 my_friendly_abort (980826);
2605 output_asm_insn (".vtable_inherit %c0, %c1", op
);
2609 finish_vtable_vardecl (prev
, vars
)
2612 tree ctype
= DECL_CONTEXT (vars
);
2613 import_export_class (ctype
);
2614 import_export_vtable (vars
, ctype
, 1);
2616 if (! DECL_EXTERNAL (vars
)
2617 && (DECL_INTERFACE_KNOWN (vars
)
2618 || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (vars
))
2619 || (hack_decl_function_context (vars
) && TREE_USED (vars
)))
2620 && ! TREE_ASM_WRITTEN (vars
))
2623 mark_vtable_entries (vars
);
2624 if (TREE_TYPE (DECL_INITIAL (vars
)) == 0)
2625 store_init_value (vars
, DECL_INITIAL (vars
));
2627 if (write_symbols
== DWARF_DEBUG
|| write_symbols
== DWARF2_DEBUG
)
2629 /* Mark the VAR_DECL node representing the vtable itself as a
2630 "gratuitous" one, thereby forcing dwarfout.c to ignore it.
2631 It is rather important that such things be ignored because
2632 any effort to actually generate DWARF for them will run
2633 into trouble when/if we encounter code like:
2636 struct S { virtual void member (); };
2638 because the artificial declaration of the vtable itself (as
2639 manufactured by the g++ front end) will say that the vtable
2640 is a static member of `S' but only *after* the debug output
2641 for the definition of `S' has already been output. This causes
2642 grief because the DWARF entry for the definition of the vtable
2643 will try to refer back to an earlier *declaration* of the
2644 vtable as a static member of `S' and there won't be one.
2645 We might be able to arrange to have the "vtable static member"
2646 attached to the member list for `S' before the debug info for
2647 `S' get written (which would solve the problem) but that would
2648 require more intrusive changes to the g++ front end. */
2650 DECL_IGNORED_P (vars
) = 1;
2653 rest_of_decl_compilation (vars
, NULL_PTR
, 1, 1);
2656 output_vtable_inherit (vars
);
2660 else if (! TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (vars
)))
2661 /* We don't know what to do with this one yet. */
2664 /* We know that PREV must be non-zero here. */
2665 TREE_CHAIN (prev
) = TREE_CHAIN (vars
);
2670 prune_vtable_vardecl (prev
, vars
)
2673 /* We know that PREV must be non-zero here. */
2674 TREE_CHAIN (prev
) = TREE_CHAIN (vars
);
2679 walk_vtables (typedecl_fn
, vardecl_fn
)
2680 register void (*typedecl_fn
) PROTO ((tree
, tree
));
2681 register int (*vardecl_fn
) PROTO ((tree
, tree
));
2686 for (prev
= 0, vars
= getdecls (); vars
; vars
= TREE_CHAIN (vars
))
2688 register tree type
= TREE_TYPE (vars
);
2690 if (TREE_CODE (vars
) == VAR_DECL
&& DECL_VIRTUAL_P (vars
))
2693 flag
|= (*vardecl_fn
) (prev
, vars
);
2695 if (prev
&& TREE_CHAIN (prev
) != vars
)
2698 else if (TREE_CODE (vars
) == TYPE_DECL
2699 && type
!= error_mark_node
2700 && TYPE_LANG_SPECIFIC (type
)
2701 && CLASSTYPE_VSIZE (type
))
2703 if (typedecl_fn
) (*typedecl_fn
) (prev
, vars
);
2713 finish_sigtable_vardecl (prev
, vars
)
2716 /* We don't need to mark sigtable entries as addressable here as is done
2717 for vtables. Since sigtables, unlike vtables, are always written out,
2718 that was already done in build_signature_table_constructor. */
2720 rest_of_decl_compilation (vars
, NULL_PTR
, 1, 1);
2722 /* We know that PREV must be non-zero here. */
2723 TREE_CHAIN (prev
) = TREE_CHAIN (vars
);
2727 walk_sigtables (typedecl_fn
, vardecl_fn
)
2728 register void (*typedecl_fn
) PROTO((tree
, tree
));
2729 register void (*vardecl_fn
) PROTO((tree
, tree
));
2733 for (prev
= 0, vars
= getdecls (); vars
; vars
= TREE_CHAIN (vars
))
2735 register tree type
= TREE_TYPE (vars
);
2737 if (TREE_CODE (vars
) == TYPE_DECL
2738 && type
!= error_mark_node
2739 && IS_SIGNATURE (type
))
2741 if (typedecl_fn
) (*typedecl_fn
) (prev
, vars
);
2743 else if (TREE_CODE (vars
) == VAR_DECL
2744 && TREE_TYPE (vars
) != error_mark_node
2745 && IS_SIGNATURE (TREE_TYPE (vars
)))
2747 if (vardecl_fn
) (*vardecl_fn
) (prev
, vars
);
2754 /* Determines the proper settings of TREE_PUBLIC and DECL_EXTERNAL for an
2755 inline function or template instantiation at end-of-file. */
2758 import_export_decl (decl
)
2761 if (DECL_INTERFACE_KNOWN (decl
))
2764 if (DECL_TEMPLATE_INSTANTIATION (decl
)
2765 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (decl
))
2767 DECL_NOT_REALLY_EXTERN (decl
) = 1;
2768 if ((DECL_IMPLICIT_INSTANTIATION (decl
)
2769 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (decl
))
2770 && (flag_implicit_templates
2771 || (flag_implicit_inline_templates
&& DECL_THIS_INLINE (decl
))))
2773 if (!TREE_PUBLIC (decl
))
2774 /* Templates are allowed to have internal linkage. See
2777 else if (TREE_CODE (decl
) == FUNCTION_DECL
)
2778 comdat_linkage (decl
);
2780 DECL_COMDAT (decl
) = 1;
2783 DECL_NOT_REALLY_EXTERN (decl
) = 0;
2785 else if (DECL_FUNCTION_MEMBER_P (decl
))
2787 tree ctype
= DECL_CLASS_CONTEXT (decl
);
2788 import_export_class (ctype
);
2789 if (CLASSTYPE_INTERFACE_KNOWN (ctype
)
2790 && (! DECL_ARTIFICIAL (decl
) || DECL_VINDEX (decl
)))
2792 DECL_NOT_REALLY_EXTERN (decl
)
2793 = ! (CLASSTYPE_INTERFACE_ONLY (ctype
)
2794 || (DECL_THIS_INLINE (decl
) && ! flag_implement_inlines
));
2796 /* Always make artificials weak. */
2797 if (DECL_ARTIFICIAL (decl
) && flag_weak
)
2798 comdat_linkage (decl
);
2801 comdat_linkage (decl
);
2803 /* tinfo function */
2804 else if (DECL_ARTIFICIAL (decl
) && DECL_MUTABLE_P (decl
))
2806 tree ctype
= TREE_TYPE (DECL_NAME (decl
));
2808 if (IS_AGGR_TYPE (ctype
))
2809 import_export_class (ctype
);
2811 if (IS_AGGR_TYPE (ctype
) && CLASSTYPE_INTERFACE_KNOWN (ctype
)
2812 && TYPE_VIRTUAL_P (ctype
)
2813 /* If the type is a cv-qualified variant of a type, then we
2814 must emit the tinfo function in this translation unit
2815 since it will not be emitted when the vtable for the type
2816 is output (which is when the unqualified version is
2818 && ctype
== TYPE_MAIN_VARIANT (ctype
))
2820 DECL_NOT_REALLY_EXTERN (decl
)
2821 = ! (CLASSTYPE_INTERFACE_ONLY (ctype
)
2822 || (DECL_THIS_INLINE (decl
) && ! flag_implement_inlines
));
2824 /* Always make artificials weak. */
2826 comdat_linkage (decl
);
2828 else if (TYPE_BUILT_IN (ctype
) && ctype
== TYPE_MAIN_VARIANT (ctype
))
2829 DECL_NOT_REALLY_EXTERN (decl
) = 0;
2831 comdat_linkage (decl
);
2834 comdat_linkage (decl
);
2836 DECL_INTERFACE_KNOWN (decl
) = 1;
2840 build_cleanup (decl
)
2844 tree type
= TREE_TYPE (decl
);
2846 if (TREE_CODE (type
) == ARRAY_TYPE
)
2850 mark_addressable (decl
);
2851 temp
= build1 (ADDR_EXPR
, build_pointer_type (type
), decl
);
2853 temp
= build_delete (TREE_TYPE (temp
), temp
,
2855 LOOKUP_NORMAL
|LOOKUP_NONVIRTUAL
|LOOKUP_DESTRUCTOR
, 0);
2859 extern int parse_time
, varconst_time
;
2860 extern tree pending_templates
;
2861 extern tree maybe_templates
;
2867 tree sname
= get_id_2 ("__sn", base
);
2868 /* For struct X foo __attribute__((weak)), there is a counter
2869 __snfoo. Since base is already an assembler name, sname should
2870 be globally unique */
2871 tree sentry
= IDENTIFIER_GLOBAL_VALUE (sname
);
2874 push_obstacks_nochange ();
2875 end_temporary_allocation ();
2876 sentry
= build_decl (VAR_DECL
, sname
, integer_type_node
);
2877 TREE_PUBLIC (sentry
) = 1;
2878 DECL_ARTIFICIAL (sentry
) = 1;
2879 TREE_STATIC (sentry
) = 1;
2880 TREE_USED (sentry
) = 1;
2881 DECL_COMMON (sentry
) = 1;
2882 pushdecl_top_level (sentry
);
2883 cp_finish_decl (sentry
, NULL_TREE
, NULL_TREE
, 0, 0);
2889 /* A list of objects which have constructors or destructors
2890 which reside in the global scope. The decl is stored in
2891 the TREE_VALUE slot and the initializer is stored
2892 in the TREE_PURPOSE slot. */
2893 extern tree static_aggregates_initp
;
2895 /* Set up the static_aggregates* lists for processing. Subroutine of
2896 finish_file. Note that this function changes the format of
2897 static_aggregates_initp, from (priority . decl) to
2898 (priority . ((initializer . decl) ...)). */
2905 if (! flag_init_priority
)
2907 for (t
= static_aggregates_initp
; t
; t
= TREE_CHAIN (t
))
2908 cp_warning ("init_priority for `%#D' ignored without -finit-priority",
2913 /* First, remove any entries from static_aggregates that are also in
2914 static_aggregates_initp, and update the entries in _initp to
2915 include the initializer. */
2916 p
= &static_aggregates
;
2919 t
= value_member (TREE_VALUE (*p
), static_aggregates_initp
);
2923 TREE_VALUE (t
) = *p
;
2924 *p
= TREE_CHAIN (*p
);
2925 TREE_CHAIN (TREE_VALUE (t
)) = NULL_TREE
;
2928 p
= &TREE_CHAIN (*p
);
2931 /* Then, group static_aggregates_initp. After this step, there will only
2932 be one entry for each priority, with a chain coming off it. */
2933 t
= static_aggregates_initp
;
2934 static_aggregates_initp
= NULL_TREE
;
2936 for (; t
; t
= next_t
)
2938 next_t
= TREE_CHAIN (t
);
2940 for (p
= &static_aggregates_initp
; ; p
= &TREE_CHAIN (*p
))
2943 || tree_int_cst_lt (TREE_PURPOSE (*p
), TREE_PURPOSE (t
)))
2945 TREE_CHAIN (t
) = *p
;
2949 else if (tree_int_cst_equal (TREE_PURPOSE (*p
), TREE_PURPOSE (t
)))
2951 TREE_CHAIN (TREE_VALUE (t
)) = TREE_VALUE (*p
);
2952 TREE_VALUE (*p
) = TREE_VALUE (t
);
2958 /* Reverse each list to preserve the order (currently reverse declaration
2959 order, for destructors). */
2960 for (t
= static_aggregates_initp
; t
; t
= TREE_CHAIN (t
))
2961 TREE_VALUE (t
) = nreverse (TREE_VALUE (t
));
2964 /* Start the process of running a particular set of global constructors
2965 or destructors. Subroutine of do_[cd]tors. */
2968 start_objects (method_type
, initp
)
2969 int method_type
, initp
;
2974 /* Make ctor or dtor function. METHOD_TYPE may be 'I' or 'D'. */
2976 if (flag_init_priority
)
2986 initp
= DEFAULT_INIT_PRIORITY
;
2988 sprintf (type
, "%c%c%.5u", method_type
, joiner
, initp
);
2991 sprintf (type
, "%c", method_type
);
2993 fnname
= get_file_function_name_long (type
);
2995 start_function (void_list_node
,
2996 make_call_declarator (fnname
, void_list_node
, NULL_TREE
,
3000 store_parm_decls ();
3004 expand_start_bindings (0);
3007 /* Finish the process of running a particular set of global constructors
3008 or destructors. Subroutine of do_[cd]tors. */
3011 finish_objects (method_type
, initp
)
3012 int method_type
, initp
;
3018 tree list
= (method_type
== 'I' ? static_ctors
: static_dtors
);
3020 if (! current_function_decl
&& list
)
3021 start_objects (method_type
, initp
);
3023 for (; list
; list
= TREE_CHAIN (list
))
3024 expand_expr_stmt (build_function_call (TREE_VALUE (list
), NULL_TREE
));
3027 if (! current_function_decl
)
3030 fnname
= XSTR (XEXP (DECL_RTL (current_function_decl
), 0), 0);
3033 expand_end_bindings (getdecls (), 1, 0);
3036 finish_function (lineno
, 0, 0);
3038 if (! flag_init_priority
)
3040 if (method_type
== 'I')
3041 assemble_constructor (fnname
);
3043 assemble_destructor (fnname
);
3046 #ifdef ASM_OUTPUT_SECTION_NAME
3047 /* If we're using init priority we can't use assemble_*tor, but on ELF
3048 targets we can stick the references into named sections for GNU ld
3050 if (flag_init_priority
)
3054 initp
= DEFAULT_INIT_PRIORITY
;
3055 sprintf (buf
, ".%ctors.%.5u", method_type
== 'I' ? 'c' : 'd',
3056 /* invert the numbering so the linker puts us in the proper
3057 order; constructors are run from right to left, and the
3058 linker sorts in increasing order. */
3059 MAX_INIT_PRIORITY
- initp
);
3060 named_section (NULL_TREE
, buf
, 0);
3061 assemble_integer (gen_rtx_SYMBOL_REF (Pmode
, fnname
),
3062 POINTER_SIZE
/ BITS_PER_UNIT
, 1);
3067 /* Generate a function to run a set of global destructors. START is either
3068 NULL_TREE or a node indicating a set of destructors with the same
3069 init priority. Subroutine of finish_file. */
3080 initp
= TREE_INT_CST_LOW (TREE_PURPOSE (start
));
3081 vars
= TREE_VALUE (start
);
3086 vars
= static_aggregates
;
3089 for (; vars
; vars
= TREE_CHAIN (vars
))
3091 tree decl
= TREE_VALUE (vars
);
3092 tree type
= TREE_TYPE (decl
);
3095 if (TYPE_NEEDS_DESTRUCTOR (type
) && ! TREE_STATIC (vars
)
3096 && ! DECL_EXTERNAL (decl
))
3098 int protect
= (TREE_PUBLIC (decl
) && (DECL_COMMON (decl
)
3099 || DECL_ONE_ONLY (decl
)
3100 || DECL_WEAK (decl
)));
3102 if (! current_function_decl
)
3103 start_objects ('D', initp
);
3109 Access control for implicit calls to the constructors,
3110 the conversion functions, or the destructor called to
3111 create and destroy a static data member is performed as
3112 if these calls appeared in the scope of the member's
3115 we must convince enforce_access to let us access the
3117 if (member_p (decl
))
3119 DECL_CLASS_CONTEXT (current_function_decl
)
3120 = DECL_CONTEXT (decl
);
3121 DECL_STATIC_FUNCTION_P (current_function_decl
) = 1;
3124 temp
= build_cleanup (decl
);
3128 tree sentry
= get_sentry (DECL_ASSEMBLER_NAME (decl
));
3129 sentry
= build_unary_op (PREDECREMENT_EXPR
, sentry
, 0);
3130 sentry
= build_binary_op (EQ_EXPR
, sentry
, integer_zero_node
, 1);
3131 expand_start_cond (sentry
, 0);
3134 expand_expr_stmt (temp
);
3139 /* Now that we're done with DECL we don't need to pretend to
3140 be a member of its class any longer. */
3141 DECL_CLASS_CONTEXT (current_function_decl
) = NULL_TREE
;
3142 DECL_STATIC_FUNCTION_P (current_function_decl
) = 0;
3146 finish_objects ('D', initp
);
3149 /* Generate a function to run a set of global constructors. START is
3150 either NULL_TREE or a node indicating a set of constructors with the
3151 same init priority. Subroutine of finish_file. */
3162 initp
= TREE_INT_CST_LOW (TREE_PURPOSE (start
));
3163 vars
= TREE_VALUE (start
);
3168 vars
= static_aggregates
;
3171 /* Reverse the list so it's in the right order for ctors. */
3172 vars
= nreverse (vars
);
3174 for (; vars
; vars
= TREE_CHAIN (vars
))
3176 tree decl
= TREE_VALUE (vars
);
3177 tree init
= TREE_PURPOSE (vars
);
3179 /* If this was a static attribute within some function's scope,
3180 then don't initialize it here. Also, don't bother
3181 with initializers that contain errors. */
3182 if (TREE_STATIC (vars
)
3183 || DECL_EXTERNAL (decl
)
3184 || (init
&& TREE_CODE (init
) == TREE_LIST
3185 && value_member (error_mark_node
, init
)))
3188 if (TREE_CODE (decl
) == VAR_DECL
)
3190 int protect
= (TREE_PUBLIC (decl
) && (DECL_COMMON (decl
)
3191 || DECL_ONE_ONLY (decl
)
3192 || DECL_WEAK (decl
)));
3194 if (! current_function_decl
)
3195 start_objects ('I', initp
);
3197 /* Set these global variables so that GDB at least puts
3198 us near the declaration which required the initialization. */
3199 input_filename
= DECL_SOURCE_FILE (decl
);
3200 lineno
= DECL_SOURCE_LINE (decl
);
3201 emit_note (input_filename
, lineno
);
3203 /* 9.5p5: The initializer of a static member of a class has
3204 the same access rights as a member function. */
3205 if (member_p (decl
))
3207 DECL_CLASS_CONTEXT (current_function_decl
)
3208 = DECL_CONTEXT (decl
);
3209 DECL_STATIC_FUNCTION_P (current_function_decl
) = 1;
3214 tree sentry
= get_sentry (DECL_ASSEMBLER_NAME (decl
));
3215 sentry
= build_unary_op (PREINCREMENT_EXPR
, sentry
, 0);
3216 sentry
= build_binary_op
3217 (EQ_EXPR
, sentry
, integer_one_node
, 1);
3218 expand_start_cond (sentry
, 0);
3221 expand_start_target_temps ();
3223 if (IS_AGGR_TYPE (TREE_TYPE (decl
))
3224 || TREE_CODE (TREE_TYPE (decl
)) == ARRAY_TYPE
)
3225 expand_aggr_init (decl
, init
, 0);
3226 else if (TREE_CODE (init
) == TREE_VEC
)
3228 expand_expr (expand_vec_init (decl
, TREE_VEC_ELT (init
, 0),
3229 TREE_VEC_ELT (init
, 1),
3230 TREE_VEC_ELT (init
, 2), 0),
3231 const0_rtx
, VOIDmode
, EXPAND_NORMAL
);
3234 expand_assignment (decl
, init
, 0, 0);
3236 /* The expression might have involved increments and
3240 /* Cleanup any temporaries needed for the initial value. */
3241 expand_end_target_temps ();
3246 DECL_CLASS_CONTEXT (current_function_decl
) = NULL_TREE
;
3247 DECL_STATIC_FUNCTION_P (current_function_decl
) = 0;
3249 else if (decl
== error_mark_node
)
3252 my_friendly_abort (22);
3255 finish_objects ('I', initp
);
3258 /* This routine is called from the last rule in yyparse ().
3259 Its job is to create all the code needed to initialize and
3260 destroy the global aggregates. We do the destruction
3261 first, since that way we only need to reverse the decls once. */
3267 int start_time
, this_time
;
3271 int needs_cleaning
= 0, needs_messing_up
= 0;
3275 /* Bad parse errors. Just forget about it. */
3276 if (! global_bindings_p () || current_class_type
)
3279 check_decl_namespace ();
3281 start_time
= get_run_time ();
3283 /* Otherwise, GDB can get confused, because in only knows
3284 about source for LINENO-1 lines. */
3287 interface_unknown
= 1;
3290 for (fnname
= pending_templates
; fnname
; fnname
= TREE_CHAIN (fnname
))
3292 tree srcloc
= TREE_PURPOSE (fnname
);
3293 tree decl
= TREE_VALUE (fnname
);
3295 input_filename
= SRCLOC_FILE (srcloc
);
3296 lineno
= SRCLOC_LINE (srcloc
);
3298 if (TREE_CODE_CLASS (TREE_CODE (decl
)) == 't')
3300 instantiate_class_template (decl
);
3301 if (CLASSTYPE_TEMPLATE_INSTANTIATION (decl
))
3302 for (vars
= TYPE_METHODS (decl
); vars
; vars
= TREE_CHAIN (vars
))
3303 if (! DECL_ARTIFICIAL (vars
))
3304 instantiate_decl (vars
);
3307 instantiate_decl (decl
);
3310 for (fnname
= maybe_templates
; fnname
; fnname
= TREE_CHAIN (fnname
))
3312 tree args
, fn
, decl
= TREE_VALUE (fnname
);
3314 if (DECL_INITIAL (decl
))
3317 fn
= TREE_PURPOSE (fnname
);
3318 args
= get_bindings (fn
, decl
, NULL_TREE
);
3319 fn
= instantiate_template (fn
, args
);
3320 instantiate_decl (fn
);
3323 cat_namespace_levels();
3325 /* Push into C language context, because that's all
3327 push_lang_context (lang_name_c
);
3330 /* The reason for pushing garbage onto the global_binding_level is to
3331 ensure that we can slice out _DECLs which pertain to virtual function
3332 tables. If the last thing pushed onto the global_binding_level was a
3333 virtual function table, then slicing it out would slice away all the
3334 decls (i.e., we lose the head of the chain).
3336 There are several ways of getting the same effect, from changing the
3337 way that iterators over the chain treat the elements that pertain to
3338 virtual function tables, moving the implementation of this code to
3339 decl.c (where we can manipulate global_binding_level directly),
3340 popping the garbage after pushing it and slicing away the vtable
3341 stuff, or just leaving it alone. */
3343 /* Make last thing in global scope not be a virtual function table. */
3344 #if 0 /* not yet, should get fixed properly later */
3345 vars
= make_type_decl (get_identifier (" @%$#@!"), integer_type_node
);
3347 vars
= build_decl (TYPE_DECL
, get_identifier (" @%$#@!"), integer_type_node
);
3349 DECL_IGNORED_P (vars
) = 1;
3350 SET_DECL_ARTIFICIAL (vars
);
3354 for (vars
= static_aggregates
; vars
; vars
= TREE_CHAIN (vars
))
3355 if (! TREE_ASM_WRITTEN (TREE_VALUE (vars
)))
3356 rest_of_decl_compilation (TREE_VALUE (vars
), 0, 1, 1);
3357 vars
= static_aggregates
;
3359 if (static_ctors
|| vars
)
3360 needs_messing_up
= 1;
3361 if (static_dtors
|| vars
)
3366 /* After setup_initp, the aggregates are listed in reverse declaration
3367 order, for cleaning. */
3370 do_dtors (NULL_TREE
);
3372 if (flag_init_priority
)
3373 for (vars
= static_aggregates_initp
; vars
; vars
= TREE_CHAIN (vars
))
3377 /* do_ctors will reverse the lists for messing up. */
3378 if (needs_messing_up
)
3380 do_ctors (NULL_TREE
);
3382 if (flag_init_priority
)
3383 for (vars
= static_aggregates_initp
; vars
; vars
= TREE_CHAIN (vars
))
3387 permanent_allocation (1);
3389 /* Done with C language context needs. */
3390 pop_lang_context ();
3392 /* Now write out any static class variables (which may have since
3393 learned how to be initialized). */
3394 while (pending_statics
)
3396 tree decl
= TREE_VALUE (pending_statics
);
3398 /* Output DWARF debug information. */
3399 #ifdef DWARF_DEBUGGING_INFO
3400 if (write_symbols
== DWARF_DEBUG
)
3401 dwarfout_file_scope_decl (decl
, 1);
3403 #ifdef DWARF2_DEBUGGING_INFO
3404 if (write_symbols
== DWARF2_DEBUG
)
3405 dwarf2out_decl (decl
);
3408 DECL_DEFER_OUTPUT (decl
) = 0;
3409 rest_of_decl_compilation
3410 (decl
, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl
)), 1, 1);
3412 pending_statics
= TREE_CHAIN (pending_statics
);
3415 this_time
= get_run_time ();
3416 parse_time
-= this_time
- start_time
;
3417 varconst_time
+= this_time
- start_time
;
3419 start_time
= get_run_time ();
3421 if (flag_handle_signatures
)
3422 walk_sigtables ((void (*) PROTO ((tree
, tree
))) 0,
3423 finish_sigtable_vardecl
);
3425 for (fnname
= saved_inlines
; fnname
; fnname
= TREE_CHAIN (fnname
))
3427 tree decl
= TREE_VALUE (fnname
);
3428 import_export_decl (decl
);
3431 mark_all_runtime_matches ();
3433 /* Now write out inline functions which had their addresses taken and
3434 which were not declared virtual and which were not declared `extern
3437 int reconsider
= 1; /* More may be referenced; check again */
3441 tree
*p
= &saved_inlines
;
3444 /* We need to do this each time so that newly completed template
3445 types don't wind up at the front of the list. Sigh. */
3446 vars
= build_decl (TYPE_DECL
, make_anon_name (), integer_type_node
);
3447 DECL_IGNORED_P (vars
) = 1;
3448 SET_DECL_ARTIFICIAL (vars
);
3451 reconsider
|= walk_vtables ((void (*) PROTO((tree
, tree
))) 0,
3452 finish_vtable_vardecl
);
3456 tree decl
= TREE_VALUE (*p
);
3458 if (DECL_ARTIFICIAL (decl
) && ! DECL_INITIAL (decl
)
3460 && (! DECL_REALLY_EXTERN (decl
) || DECL_INLINE (decl
)))
3462 if (DECL_MUTABLE_P (decl
))
3463 synthesize_tinfo_fn (decl
);
3465 synthesize_method (decl
);
3469 /* Catch new template instantiations. */
3470 if (decl
!= TREE_VALUE (*p
))
3473 if (TREE_ASM_WRITTEN (decl
)
3474 || (DECL_SAVED_INSNS (decl
) == 0 && ! DECL_ARTIFICIAL (decl
)))
3475 *p
= TREE_CHAIN (*p
);
3476 else if (DECL_INITIAL (decl
) == 0)
3477 p
= &TREE_CHAIN (*p
);
3478 else if ((TREE_PUBLIC (decl
) && ! DECL_COMDAT (decl
))
3479 || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl
))
3480 || flag_keep_inline_functions
)
3482 if (DECL_NOT_REALLY_EXTERN (decl
))
3484 DECL_EXTERNAL (decl
) = 0;
3486 /* We can't inline this function after it's been
3487 emitted. We want a variant of
3488 output_inline_function that doesn't prevent
3489 subsequent integration... */
3490 DECL_INLINE (decl
) = 0;
3491 output_inline_function (decl
);
3492 permanent_allocation (1);
3495 *p
= TREE_CHAIN (*p
);
3498 p
= &TREE_CHAIN (*p
);
3502 /* It's possible that some of the remaining inlines will still be
3503 needed. For example, a static inline whose address is used in
3504 the initializer for a file-scope static variable will be
3505 needed. Code in compile_file will handle this, but we mustn't
3506 pretend that there are no definitions for the inlines, or it
3509 FIXME: This won't catch member functions. We should really
3510 unify this stuff with the compile_file stuff. */
3511 for (vars
= saved_inlines
; vars
!= NULL_TREE
; vars
= TREE_CHAIN (vars
))
3513 tree decl
= TREE_VALUE (vars
);
3515 if (DECL_NOT_REALLY_EXTERN (decl
)
3516 && !DECL_COMDAT (decl
)
3517 && DECL_INITIAL (decl
) != NULL_TREE
)
3518 DECL_EXTERNAL (decl
) = 0;
3522 /* Now delete from the chain of variables all virtual function tables.
3523 We output them all ourselves, because each will be treated specially. */
3525 walk_vtables ((void (*) PROTO((tree
, tree
))) 0,
3526 prune_vtable_vardecl
);
3530 this_time
= get_run_time ();
3531 parse_time
-= this_time
- start_time
;
3532 varconst_time
+= this_time
- start_time
;
3534 if (flag_detailed_statistics
)
3536 dump_tree_statistics ();
3537 dump_time_statistics ();
3541 /* This is something of the form 'A()()()()()+1' that has turned out to be an
3542 expr. Since it was parsed like a type, we need to wade through and fix
3543 that. Unfortunately, since operator() is left-associative, we can't use
3544 tail recursion. In the above example, TYPE is `A', and DECL is
3547 Maybe this shouldn't be recursive, but how often will it actually be
3551 reparse_absdcl_as_expr (type
, decl
)
3554 /* do build_functional_cast (type, NULL_TREE) at bottom */
3555 if (TREE_OPERAND (decl
, 0) == NULL_TREE
)
3556 return build_functional_cast (type
, NULL_TREE
);
3559 decl
= reparse_decl_as_expr (type
, TREE_OPERAND (decl
, 0));
3561 decl
= build_x_function_call (decl
, NULL_TREE
, current_class_ref
);
3563 if (TREE_CODE (decl
) == CALL_EXPR
&& TREE_TYPE (decl
) != void_type_node
)
3564 decl
= require_complete_type (decl
);
3569 /* This is something of the form `int ((int)(int)(int)1)' that has turned
3570 out to be an expr. Since it was parsed like a type, we need to wade
3571 through and fix that. Since casts are right-associative, we are
3572 reversing the order, so we don't have to recurse.
3574 In the above example, DECL is the `(int)(int)(int)', and EXPR is the
3578 reparse_absdcl_as_casts (decl
, expr
)
3583 if (TREE_CODE (expr
) == CONSTRUCTOR
3584 && TREE_TYPE (expr
) == 0)
3586 type
= groktypename (TREE_VALUE (TREE_OPERAND (decl
, 1)));
3587 decl
= TREE_OPERAND (decl
, 0);
3589 if (IS_SIGNATURE (type
))
3591 error ("cast specifies signature type");
3592 return error_mark_node
;
3595 expr
= digest_init (type
, expr
, (tree
*) 0);
3596 if (TREE_CODE (type
) == ARRAY_TYPE
&& TYPE_SIZE (type
) == 0)
3598 int failure
= complete_array_type (type
, expr
, 1);
3600 my_friendly_abort (78);
3606 type
= groktypename (TREE_VALUE (TREE_OPERAND (decl
, 1)));
3607 decl
= TREE_OPERAND (decl
, 0);
3608 expr
= build_c_cast (type
, expr
);
3611 if (warn_old_style_cast
)
3612 warning ("use of old-style cast");
3617 /* Given plain tree nodes for an expression, build up the full semantics. */
3620 build_expr_from_tree (t
)
3623 if (t
== NULL_TREE
|| t
== error_mark_node
)
3626 switch (TREE_CODE (t
))
3628 case IDENTIFIER_NODE
:
3629 return do_identifier (t
, 0, NULL_TREE
);
3632 if (LOOKUP_EXPR_GLOBAL (t
))
3633 return do_scoped_id (TREE_OPERAND (t
, 0), 0);
3635 return do_identifier (TREE_OPERAND (t
, 0), 0, NULL_TREE
);
3637 case TEMPLATE_ID_EXPR
:
3638 return (lookup_template_function
3639 (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3640 build_expr_from_tree (TREE_OPERAND (t
, 1))));
3643 return build_x_indirect_ref
3644 (build_expr_from_tree (TREE_OPERAND (t
, 0)), "unary *");
3647 return build_functional_cast
3648 (TREE_TYPE (t
), build_expr_from_tree (TREE_OPERAND (t
, 0)));
3650 case REINTERPRET_CAST_EXPR
:
3651 return build_reinterpret_cast
3652 (TREE_TYPE (t
), build_expr_from_tree (TREE_OPERAND (t
, 0)));
3654 case CONST_CAST_EXPR
:
3655 return build_const_cast
3656 (TREE_TYPE (t
), build_expr_from_tree (TREE_OPERAND (t
, 0)));
3658 case DYNAMIC_CAST_EXPR
:
3659 return build_dynamic_cast
3660 (TREE_TYPE (t
), build_expr_from_tree (TREE_OPERAND (t
, 0)));
3662 case STATIC_CAST_EXPR
:
3663 return build_static_cast
3664 (TREE_TYPE (t
), build_expr_from_tree (TREE_OPERAND (t
, 0)));
3666 case PREDECREMENT_EXPR
:
3667 case PREINCREMENT_EXPR
:
3668 case POSTDECREMENT_EXPR
:
3669 case POSTINCREMENT_EXPR
:
3673 case TRUTH_NOT_EXPR
:
3675 case CONVERT_EXPR
: /* Unary + */
3678 return build_x_unary_op (TREE_CODE (t
),
3679 build_expr_from_tree (TREE_OPERAND (t
, 0)));
3684 case TRUNC_DIV_EXPR
:
3686 case FLOOR_DIV_EXPR
:
3687 case ROUND_DIV_EXPR
:
3688 case EXACT_DIV_EXPR
:
3690 case BIT_ANDTC_EXPR
:
3693 case TRUNC_MOD_EXPR
:
3694 case FLOOR_MOD_EXPR
:
3695 case TRUTH_ANDIF_EXPR
:
3696 case TRUTH_ORIF_EXPR
:
3697 case TRUTH_AND_EXPR
:
3712 return build_x_binary_op
3714 build_expr_from_tree (TREE_OPERAND (t
, 0)),
3715 build_expr_from_tree (TREE_OPERAND (t
, 1)));
3718 return build_m_component_ref
3719 (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3720 build_expr_from_tree (TREE_OPERAND (t
, 1)));
3723 return build_offset_ref (TREE_OPERAND (t
, 0), TREE_OPERAND (t
, 1));
3726 if (TREE_OPERAND (t
, 0) == NULL_TREE
)
3728 return build_parse_node (ARRAY_REF
, NULL_TREE
,
3729 build_expr_from_tree (TREE_OPERAND (t
, 1)));
3730 return grok_array_decl (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3731 build_expr_from_tree (TREE_OPERAND (t
, 1)));
3736 tree r
= build_expr_from_tree (TREE_OPERAND (t
, 0));
3737 if (TREE_CODE_CLASS (TREE_CODE (r
)) != 't')
3739 return TREE_CODE (t
) == SIZEOF_EXPR
? c_sizeof (r
) : c_alignof (r
);
3743 return build_x_modify_expr
3744 (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3745 TREE_CODE (TREE_OPERAND (t
, 1)),
3746 build_expr_from_tree (TREE_OPERAND (t
, 2)));
3749 return build_x_arrow
3750 (build_expr_from_tree (TREE_OPERAND (t
, 0)));
3754 (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3755 build_expr_from_tree (TREE_OPERAND (t
, 1)),
3756 build_expr_from_tree (TREE_OPERAND (t
, 2)),
3757 NEW_EXPR_USE_GLOBAL (t
));
3760 return delete_sanity
3761 (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3762 build_expr_from_tree (TREE_OPERAND (t
, 1)),
3763 DELETE_EXPR_USE_VEC (t
), DELETE_EXPR_USE_GLOBAL (t
));
3766 if (TREE_OPERAND (t
, 1) == NULL_TREE
)
3767 return build_x_compound_expr
3768 (build_expr_from_tree (TREE_OPERAND (t
, 0)));
3770 my_friendly_abort (42);
3772 case METHOD_CALL_EXPR
:
3773 if (TREE_CODE (TREE_OPERAND (t
, 0)) == SCOPE_REF
)
3775 tree ref
= TREE_OPERAND (t
, 0);
3776 return build_scoped_method_call
3777 (build_expr_from_tree (TREE_OPERAND (t
, 1)),
3778 build_expr_from_tree (TREE_OPERAND (ref
, 0)),
3779 TREE_OPERAND (ref
, 1),
3780 build_expr_from_tree (TREE_OPERAND (t
, 2)));
3782 return build_method_call
3783 (build_expr_from_tree (TREE_OPERAND (t
, 1)),
3784 TREE_OPERAND (t
, 0),
3785 build_expr_from_tree (TREE_OPERAND (t
, 2)),
3786 NULL_TREE
, LOOKUP_NORMAL
);
3789 if (TREE_CODE (TREE_OPERAND (t
, 0)) == SCOPE_REF
)
3791 tree ref
= TREE_OPERAND (t
, 0);
3792 return build_member_call
3793 (build_expr_from_tree (TREE_OPERAND (ref
, 0)),
3794 TREE_OPERAND (ref
, 1),
3795 build_expr_from_tree (TREE_OPERAND (t
, 1)));
3799 tree name
= TREE_OPERAND (t
, 0);
3801 tree args
= build_expr_from_tree (TREE_OPERAND (t
, 1));
3802 if (args
!= NULL_TREE
&& TREE_CODE (name
) == LOOKUP_EXPR
3803 && !LOOKUP_EXPR_GLOBAL (name
)
3804 && TREE_CODE ((id
= TREE_OPERAND (name
, 0))) == IDENTIFIER_NODE
3805 && (!current_class_type
3806 || !lookup_member (current_class_type
, id
, 0, 0)))
3808 /* Do Koenig lookup if there are no class members. */
3809 name
= do_identifier (id
, 0, args
);
3811 else if (TREE_CODE (name
) == TEMPLATE_ID_EXPR
3812 || ! really_overloaded_fn (name
))
3813 name
= build_expr_from_tree (name
);
3814 return build_x_function_call (name
, args
, current_class_ref
);
3818 return build_x_conditional_expr
3819 (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3820 build_expr_from_tree (TREE_OPERAND (t
, 1)),
3821 build_expr_from_tree (TREE_OPERAND (t
, 2)));
3825 tree purpose
, value
, chain
;
3827 if (t
== void_list_node
)
3830 purpose
= TREE_PURPOSE (t
);
3832 purpose
= build_expr_from_tree (purpose
);
3833 value
= TREE_VALUE (t
);
3835 value
= build_expr_from_tree (value
);
3836 chain
= TREE_CHAIN (t
);
3837 if (chain
&& chain
!= void_type_node
)
3838 chain
= build_expr_from_tree (chain
);
3839 return expr_tree_cons (purpose
, value
, chain
);
3843 return build_x_component_ref
3844 (build_expr_from_tree (TREE_OPERAND (t
, 0)),
3845 TREE_OPERAND (t
, 1), NULL_TREE
, 1);
3848 return build_throw (build_expr_from_tree (TREE_OPERAND (t
, 0)));
3854 /* digest_init will do the wrong thing if we let it. */
3855 if (TREE_TYPE (t
) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t
)))
3858 r
= build_nt (CONSTRUCTOR
, NULL_TREE
,
3859 build_expr_from_tree (CONSTRUCTOR_ELTS (t
)));
3860 TREE_HAS_CONSTRUCTOR (r
) = TREE_HAS_CONSTRUCTOR (t
);
3863 return digest_init (TREE_TYPE (t
), r
, 0);
3868 if (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (t
, 0))) == 't')
3869 return get_typeid (TREE_OPERAND (t
, 0));
3870 return build_x_typeid (build_expr_from_tree (TREE_OPERAND (t
, 0)));
3873 return convert_from_reference (t
);
3880 /* This is something of the form `int (*a)++' that has turned out to be an
3881 expr. It was only converted into parse nodes, so we need to go through
3882 and build up the semantics. Most of the work is done by
3883 build_expr_from_tree, above.
3885 In the above example, TYPE is `int' and DECL is `*a'. */
3888 reparse_decl_as_expr (type
, decl
)
3891 decl
= build_expr_from_tree (decl
);
3893 return build_functional_cast (type
, build_expr_list (NULL_TREE
, decl
));
3898 /* This is something of the form `int (*a)' that has turned out to be a
3899 decl. It was only converted into parse nodes, so we need to do the
3900 checking that make_{pointer,reference}_declarator do. */
3903 finish_decl_parsing (decl
)
3906 extern int current_class_depth
;
3908 switch (TREE_CODE (decl
))
3910 case IDENTIFIER_NODE
:
3913 return make_pointer_declarator
3914 (NULL_TREE
, finish_decl_parsing (TREE_OPERAND (decl
, 0)));
3916 return make_reference_declarator
3917 (NULL_TREE
, finish_decl_parsing (TREE_OPERAND (decl
, 0)));
3919 TREE_OPERAND (decl
, 0) = finish_decl_parsing (TREE_OPERAND (decl
, 0));
3922 push_nested_class (TREE_TYPE (TREE_OPERAND (decl
, 0)), 3);
3923 TREE_COMPLEXITY (decl
) = current_class_depth
;
3926 TREE_OPERAND (decl
, 0) = finish_decl_parsing (TREE_OPERAND (decl
, 0));
3929 /* For attribute handling. */
3930 TREE_VALUE (decl
) = finish_decl_parsing (TREE_VALUE (decl
));
3933 my_friendly_abort (5);
3939 check_cp_case_value (value
)
3942 if (value
== NULL_TREE
)
3945 /* Strip NON_LVALUE_EXPRs since we aren't using as an lvalue. */
3946 STRIP_TYPE_NOPS (value
);
3948 if (TREE_READONLY_DECL_P (value
))
3950 value
= decl_constant_value (value
);
3951 STRIP_TYPE_NOPS (value
);
3953 value
= fold (value
);
3955 if (TREE_CODE (value
) != INTEGER_CST
3956 && value
!= error_mark_node
)
3958 cp_error ("case label `%E' does not reduce to an integer constant",
3960 value
= error_mark_node
;
3963 /* Promote char or short to int. */
3964 value
= default_conversion (value
);
3966 constant_expression_warning (value
);
3971 /* Return 1 if root encloses child. */
3974 is_namespace_ancestor (root
, child
)
3979 if (root
== global_namespace
)
3981 if (child
== global_namespace
)
3983 return is_namespace_ancestor (root
, CP_DECL_CONTEXT (child
));
3987 /* Return the namespace that is the common ancestor
3988 of two given namespaces. */
3991 namespace_ancestor (ns1
, ns2
)
3994 if (is_namespace_ancestor (ns1
, ns2
))
3996 return namespace_ancestor (CP_DECL_CONTEXT (ns1
), ns2
);
3999 /* Insert used into the using list of user. Set indirect_flag if this
4000 directive is not directly from the source. Also find the common
4001 ancestor and let our users know about the new namespace */
4003 add_using_namespace (user
, used
, indirect
)
4009 /* Using oneself is a no-op. */
4012 my_friendly_assert (TREE_CODE (user
) == NAMESPACE_DECL
, 380);
4013 my_friendly_assert (TREE_CODE (used
) == NAMESPACE_DECL
, 380);
4014 /* Check if we already have this. */
4015 t
= purpose_member (used
, DECL_NAMESPACE_USING (user
));
4019 /* Promote to direct usage. */
4020 TREE_INDIRECT_USING (t
) = 0;
4024 /* Add used to the user's using list. */
4025 DECL_NAMESPACE_USING (user
)
4026 = perm_tree_cons (used
, namespace_ancestor (user
, used
),
4027 DECL_NAMESPACE_USING (user
));
4029 TREE_INDIRECT_USING (DECL_NAMESPACE_USING (user
)) = indirect
;
4031 /* Add user to the used's users list. */
4032 DECL_NAMESPACE_USERS (used
)
4033 = perm_tree_cons (user
, 0, DECL_NAMESPACE_USERS (used
));
4035 /* Recursively add all namespaces used. */
4036 for (t
= DECL_NAMESPACE_USING (used
); t
; t
= TREE_CHAIN (t
))
4037 /* indirect usage */
4038 add_using_namespace (user
, TREE_PURPOSE (t
), 1);
4040 /* Tell everyone using us about the new used namespaces. */
4041 for (t
= DECL_NAMESPACE_USERS (user
); t
; t
= TREE_CHAIN (t
))
4042 add_using_namespace (TREE_PURPOSE (t
), used
, 1);
4045 /* Combines two sets of overloaded functions into an OVERLOAD chain, removing
4046 duplicates. The first list becomes the tail of the result.
4048 The algorithm is O(n^2). We could get this down to O(n log n) by
4049 doing a sort on the addresses of the functions, if that becomes
4053 merge_functions (s1
, s2
)
4057 for (; s2
; s2
= OVL_NEXT (s2
))
4059 tree fn
= OVL_CURRENT (s2
);
4060 if (! ovl_member (fn
, s1
))
4061 s1
= build_overload (fn
, s1
);
4066 /* This should return an error not all definitions define functions.
4067 It is not an error if we find two functions with exactly the
4068 same signature, only if these are selected in overload resolution.
4069 old is the current set of bindings, new the freshly-found binding.
4070 XXX Do we want to give *all* candidates in case of ambiguity?
4071 XXX In what way should I treat extern declarations?
4072 XXX I don't want to repeat the entire duplicate_decls here */
4075 ambiguous_decl (name
, old
, new, flags
)
4082 my_friendly_assert (old
!= NULL_TREE
, 393);
4083 /* Copy the value. */
4084 val
= BINDING_VALUE (new);
4086 switch (TREE_CODE (val
))
4089 /* If we expect types or namespaces, and not templates,
4090 or this is not a template class. */
4091 if (LOOKUP_QUALIFIERS_ONLY (flags
)
4092 && (!(flags
& LOOKUP_TEMPLATES_EXPECTED
)
4093 || !DECL_CLASS_TEMPLATE_P (val
)))
4097 if (LOOKUP_NAMESPACES_ONLY (flags
))
4100 case NAMESPACE_DECL
:
4101 if (LOOKUP_TYPES_ONLY (flags
))
4105 if (LOOKUP_QUALIFIERS_ONLY (flags
))
4109 if (!BINDING_VALUE (old
))
4110 BINDING_VALUE (old
) = val
;
4111 else if (val
&& val
!= BINDING_VALUE (old
))
4113 if (is_overloaded_fn (BINDING_VALUE (old
))
4114 && is_overloaded_fn (val
))
4116 BINDING_VALUE (old
) = merge_functions (BINDING_VALUE (old
),
4121 /* Some declarations are functions, some are not. */
4122 if (flags
& LOOKUP_COMPLAIN
)
4124 cp_error ("use of `%D' is ambiguous", name
);
4125 cp_error_at (" first declared as `%#D' here",
4126 BINDING_VALUE (old
));
4127 cp_error_at (" also declared as `%#D' here", val
);
4129 return error_mark_node
;
4132 /* ... and copy the type. */
4133 type
= BINDING_TYPE (new);
4134 if (LOOKUP_NAMESPACES_ONLY (flags
))
4136 if (!BINDING_TYPE (old
))
4137 BINDING_TYPE (old
) = type
;
4138 else if (type
&& BINDING_TYPE (old
) != type
)
4140 if (flags
& LOOKUP_COMPLAIN
)
4142 cp_error ("`%D' denotes an ambiguous type",name
);
4143 cp_error_at (" first type here", BINDING_TYPE (old
));
4144 cp_error_at (" other type here", type
);
4150 /* Add the bindings of name in used namespaces to val.
4151 The using list is defined by usings, and the lookup goes to scope.
4152 Returns zero on errors. */
4155 lookup_using_namespace (name
, val
, usings
, scope
, flags
)
4156 tree name
, val
, usings
, scope
;
4161 /* Iterate over all used namespaces in current, searching for using
4162 directives of scope. */
4163 for (iter
= usings
; iter
; iter
= TREE_CHAIN (iter
))
4164 if (TREE_VALUE (iter
) == scope
)
4166 val1
= binding_for_name (name
, TREE_PURPOSE (iter
));
4167 /* Resolve ambiguities. */
4168 val
= ambiguous_decl (name
, val
, val1
, flags
);
4170 return val
!= error_mark_node
;
4174 Excepts the name to lookup and its qualifying scope.
4175 Returns the name/type pair found into the CPLUS_BINDING result,
4179 qualified_lookup_using_namespace (name
, scope
, result
, flags
)
4185 /* Maintain a list of namespaces visited... */
4186 tree seen
= NULL_TREE
;
4187 /* ... and a list of namespace yet to see. */
4188 tree todo
= NULL_TREE
;
4190 while (scope
&& (result
!= error_mark_node
))
4192 seen
= temp_tree_cons (scope
, NULL_TREE
, seen
);
4193 result
= ambiguous_decl (name
, result
,
4194 binding_for_name (name
, scope
), flags
);
4195 if (!BINDING_VALUE (result
) && !BINDING_TYPE (result
))
4196 /* Consider using directives. */
4197 for (usings
= DECL_NAMESPACE_USING (scope
); usings
;
4198 usings
= TREE_CHAIN (usings
))
4199 /* If this was a real directive, and we have not seen it. */
4200 if (!TREE_INDIRECT_USING (usings
)
4201 && !purpose_member (TREE_PURPOSE (usings
), seen
))
4202 todo
= temp_tree_cons (TREE_PURPOSE (usings
), NULL_TREE
, todo
);
4205 scope
= TREE_PURPOSE (todo
);
4206 todo
= TREE_CHAIN (todo
);
4209 scope
= NULL_TREE
; /* If there never was a todo list. */
4211 return result
!= error_mark_node
;
4214 /* [namespace.memdef]/2 */
4216 /* Set the context of a declaration to scope. Complain if we are not
4220 set_decl_namespace (decl
, scope
)
4225 if (scope
== std_node
)
4226 scope
= global_namespace
;
4227 /* Get rid of namespace aliases. */
4228 scope
= ORIGINAL_NAMESPACE (scope
);
4230 if (!is_namespace_ancestor (current_namespace
, scope
))
4231 cp_error ("declaration of `%D' not in a namespace surrounding `%D'",
4233 DECL_CONTEXT (decl
) = FROB_CONTEXT (scope
);
4234 if (scope
!= current_namespace
)
4236 /* See whether this has been declared in the namespace. */
4237 old
= namespace_binding (DECL_NAME (decl
), scope
);
4239 /* No old declaration at all. */
4241 if (!is_overloaded_fn (decl
))
4242 /* Don't compare non-function decls with decls_match here,
4243 since it can't check for the correct constness at this
4244 point. pushdecl will find those errors later. */
4246 /* Since decl is a function, old should contain a function decl. */
4247 if (!is_overloaded_fn (old
))
4249 for (; old
; old
= OVL_NEXT (old
))
4250 if (decls_match (decl
, OVL_CURRENT (old
)))
4256 cp_error ("`%D' should have been declared inside `%D'",
4260 /* Compute the namespace where a declaration is defined. */
4263 decl_namespace (decl
)
4266 while (DECL_CONTEXT (decl
))
4268 decl
= DECL_CONTEXT (decl
);
4269 if (TREE_CODE (decl
) == NAMESPACE_DECL
)
4271 if (TREE_CODE_CLASS (TREE_CODE (decl
)) == 't')
4272 decl
= TYPE_STUB_DECL (decl
);
4273 my_friendly_assert (TREE_CODE_CLASS (TREE_CODE (decl
)) == 'd', 390);
4276 return global_namespace
;
4279 /* Return the namespace where the current declaration is declared. */
4282 current_decl_namespace ()
4285 /* If we have been pushed into a different namespace, use it. */
4286 if (decl_namespace_list
)
4287 return TREE_PURPOSE (decl_namespace_list
);
4289 if (current_class_type
)
4290 result
= decl_namespace (TYPE_STUB_DECL (current_class_type
));
4291 else if (current_function_decl
)
4292 result
= decl_namespace (current_function_decl
);
4294 result
= current_namespace
;
4298 /* Temporarily set the namespace for the current declaration. */
4301 push_decl_namespace (decl
)
4304 if (TREE_CODE (decl
) != NAMESPACE_DECL
)
4305 decl
= decl_namespace (decl
);
4306 decl_namespace_list
= tree_cons (decl
, NULL_TREE
, decl_namespace_list
);
4310 pop_decl_namespace ()
4312 decl_namespace_list
= TREE_CHAIN (decl_namespace_list
);
4316 check_decl_namespace ()
4318 my_friendly_assert (decl_namespace_list
== NULL_TREE
, 980711);
4321 /* Enter a class or namespace scope. */
4327 if (TREE_CODE (t
) == NAMESPACE_DECL
)
4328 push_decl_namespace (t
);
4333 /* Leave scope pushed by push_scope. */
4339 if (TREE_CODE (t
) == NAMESPACE_DECL
)
4340 pop_decl_namespace ();
4345 /* [basic.lookup.koenig] */
4346 /* A non-zero return value in the functions below indicates an error.
4347 All nodes allocated in the procedure are on the scratch obstack. */
4357 static int arg_assoc
PROTO((struct arg_lookup
*, tree
));
4358 static int arg_assoc_args
PROTO((struct arg_lookup
*, tree
));
4359 static int arg_assoc_type
PROTO((struct arg_lookup
*, tree
));
4361 /* Add a function to the lookup structure.
4362 Returns 1 on error. */
4365 add_function (k
, fn
)
4366 struct arg_lookup
*k
;
4369 if (ovl_member (fn
, k
->functions
))
4371 /* We must find only functions, or exactly one non-function. */
4372 if (k
->functions
&& is_overloaded_fn (k
->functions
)
4373 && is_overloaded_fn (fn
))
4374 k
->functions
= build_overload (fn
, k
->functions
);
4378 tree f1
= OVL_CURRENT (k
->functions
);
4380 if (is_overloaded_fn (f1
))
4382 fn
= f1
; f1
= f2
; f2
= fn
;
4384 cp_error_at ("`%D' is not a function,", f1
);
4385 cp_error_at (" conflict with `%D'", f2
);
4386 cp_error (" in call to `%D'", k
->name
);
4394 /* Add functions of a namespace to the lookup structure.
4395 Returns 1 on error. */
4398 arg_assoc_namespace (k
, scope
)
4399 struct arg_lookup
*k
;
4404 if (purpose_member (scope
, k
->namespaces
))
4406 k
->namespaces
= tree_cons (scope
, NULL_TREE
, k
->namespaces
);
4408 value
= namespace_binding (k
->name
, scope
);
4412 for (; value
; value
= OVL_NEXT (value
))
4413 if (add_function (k
, OVL_CURRENT (value
)))
4419 /* Adds everything associated with class to the lookup structure.
4420 Returns 1 on error. */
4423 arg_assoc_class (k
, type
)
4424 struct arg_lookup
* k
;
4427 tree list
, friends
, context
;
4430 if (purpose_member (type
, k
->classes
))
4432 k
->classes
= tree_cons (type
, NULL_TREE
, k
->classes
);
4434 context
= decl_namespace (TYPE_MAIN_DECL (type
));
4435 if (arg_assoc_namespace (k
, context
))
4438 /* Process baseclasses. */
4439 for (i
= 0; i
< CLASSTYPE_N_BASECLASSES (type
); i
++)
4440 if (arg_assoc_class (k
, TYPE_BINFO_BASETYPE (type
, i
)))
4443 /* Process friends. */
4444 for (list
= DECL_FRIENDLIST (TYPE_MAIN_DECL (type
)); list
;
4445 list
= TREE_CHAIN (list
))
4446 if (k
->name
== TREE_PURPOSE (list
))
4447 for (friends
= TREE_VALUE (list
); friends
;
4448 friends
= TREE_CHAIN (friends
))
4449 /* Only interested in global functions with potentially hidden
4450 (i.e. unqualified) declarations. */
4451 if (TREE_PURPOSE (list
) == error_mark_node
&& TREE_VALUE (list
)
4452 && decl_namespace (TREE_VALUE (list
)) == context
)
4453 if (add_function (k
, TREE_VALUE (list
)))
4456 /* Process template arguments. */
4457 if (CLASSTYPE_TEMPLATE_INFO (type
))
4459 list
= innermost_args (CLASSTYPE_TI_ARGS (type
));
4460 for (i
= 0; i
< TREE_VEC_LENGTH (list
); ++i
)
4461 arg_assoc (k
, TREE_VEC_ELT (list
, i
));
4467 /* Adds everything associated with a given type.
4468 Returns 1 on error. */
4471 arg_assoc_type (k
, type
)
4472 struct arg_lookup
*k
;
4475 switch (TREE_CODE (type
))
4485 if (TYPE_PTRMEMFUNC_P (type
))
4486 return arg_assoc_type (k
, TYPE_PTRMEMFUNC_FN_TYPE (type
));
4487 return arg_assoc_class (k
, type
);
4489 case REFERENCE_TYPE
:
4491 return arg_assoc_type (k
, TREE_TYPE (type
));
4494 return arg_assoc_namespace (k
, decl_namespace (TYPE_MAIN_DECL (type
)));
4496 /* Pointer to member: associate class type and value type. */
4497 if (arg_assoc_type (k
, TYPE_OFFSET_BASETYPE (type
)))
4499 return arg_assoc_type (k
, TREE_TYPE (type
));
4501 /* The basetype is referenced in the first arg type, so just
4504 /* Associate the parameter types. */
4505 if (arg_assoc_args (k
, TYPE_ARG_TYPES (type
)))
4507 /* Associate the return type. */
4508 return arg_assoc_type (k
, TREE_TYPE (type
));
4509 case TEMPLATE_TYPE_PARM
:
4512 if (type
== unknown_type_node
)
4514 /* else fall through */
4516 my_friendly_abort (390);
4521 /* Adds everything associated with arguments. Returns 1 on error. */
4524 arg_assoc_args (k
, args
)
4525 struct arg_lookup
* k
;
4528 for (; args
; args
= TREE_CHAIN (args
))
4529 if (arg_assoc (k
, TREE_VALUE (args
)))
4534 /* Adds everything associated with a given tree_node. Returns 1 on error. */
4538 struct arg_lookup
* k
;
4541 if (n
== error_mark_node
)
4544 if (TREE_CODE_CLASS (TREE_CODE (n
)) == 't')
4545 return arg_assoc_type (k
, n
);
4547 if (! type_unknown_p (n
))
4548 return arg_assoc_type (k
, TREE_TYPE (n
));
4550 if (TREE_CODE (n
) == ADDR_EXPR
)
4551 n
= TREE_OPERAND (n
, 0);
4552 if (TREE_CODE (n
) == COMPONENT_REF
)
4553 n
= TREE_OPERAND (n
, 1);
4554 while (TREE_CODE (n
) == TREE_LIST
)
4557 if (TREE_CODE (n
) == FUNCTION_DECL
)
4558 return arg_assoc_type (k
, TREE_TYPE (n
));
4559 if (TREE_CODE (n
) == TEMPLATE_ID_EXPR
)
4561 /* [basic.lookup.koenig]
4563 If T is a template-id, its associated namespaces and classes
4564 are the namespace in which the template is defined; for
4565 member templates, the member template's class; the namespaces
4566 and classes associated with the types of the template
4567 arguments provided for template type parameters (excluding
4568 template template parameters); the namespaces in which any
4569 template template arguments are defined; and the classes in
4570 which any member templates used as template template
4571 arguments are defined. [Note: non-type template arguments do
4572 not contribute to the set of associated namespaces. ] */
4573 tree
template = TREE_OPERAND (n
, 0);
4574 tree args
= TREE_OPERAND (n
, 1);
4578 /* First, the template. There may actually be more than one if
4579 this is an overloaded function template. But, in that case,
4580 we only need the first; all the functions will be in the same
4582 template = OVL_CURRENT (template);
4584 ctx
= CP_DECL_CONTEXT (template);
4586 if (TREE_CODE (ctx
) == NAMESPACE_DECL
)
4588 if (arg_assoc_namespace (k
, ctx
) == 1)
4591 /* It must be a member template. */
4592 else if (arg_assoc_class (k
, ctx
) == 1)
4595 /* Now the arguments. */
4596 for (arg
= args
; arg
!= NULL_TREE
; arg
= TREE_CHAIN (arg
))
4598 tree t
= TREE_VALUE (arg
);
4600 if (TREE_CODE (t
) == TEMPLATE_DECL
)
4602 ctx
= CP_DECL_CONTEXT (t
);
4603 if (TREE_CODE (ctx
) == NAMESPACE_DECL
)
4605 if (arg_assoc_namespace (k
, ctx
) == 1)
4608 else if (arg_assoc_class (k
, ctx
) == 1)
4611 else if (TREE_CODE_CLASS (TREE_CODE (t
)) == 't'
4612 && arg_assoc_type (k
, t
) == 1)
4618 my_friendly_assert (TREE_CODE (n
) == OVERLOAD
, 980715);
4620 for (; n
; n
= OVL_CHAIN (n
))
4621 if (arg_assoc_type (k
, TREE_TYPE (OVL_FUNCTION (n
))))
4628 /* Performs Koenig lookup depending on arguments, where fns
4629 are the functions found in normal lookup. */
4632 lookup_arg_dependent (name
, fns
, args
)
4637 struct arg_lookup k
;
4640 k
.namespaces
= NULL_TREE
;
4641 k
.classes
= NULL_TREE
;
4643 push_scratch_obstack ();
4644 arg_assoc_args (&k
, args
);
4649 /* Process a namespace-alias declaration. */
4652 do_namespace_alias (alias
, namespace)
4653 tree alias
, namespace;
4655 if (TREE_CODE (namespace) != NAMESPACE_DECL
)
4657 /* The parser did not find it, so it's not there. */
4658 cp_error ("unknown namespace `%D'", namespace);
4662 namespace = ORIGINAL_NAMESPACE (namespace);
4664 /* Build the alias. */
4665 alias
= build_lang_decl (NAMESPACE_DECL
, alias
, void_type_node
);
4666 DECL_NAMESPACE_ALIAS (alias
) = namespace;
4670 /* Check a non-member using-declaration. Return the name and scope
4671 being used, and the USING_DECL, or NULL_TREE on failure. */
4674 validate_nonmember_using_decl (decl
, scope
, name
)
4679 if (TREE_CODE (decl
) == SCOPE_REF
4680 && TREE_OPERAND (decl
, 0) == std_node
)
4682 *scope
= global_namespace
;
4683 *name
= TREE_OPERAND (decl
, 1);
4685 else if (TREE_CODE (decl
) == SCOPE_REF
)
4687 *scope
= TREE_OPERAND (decl
, 0);
4688 *name
= TREE_OPERAND (decl
, 1);
4690 else if (TREE_CODE (decl
) == IDENTIFIER_NODE
4691 || TREE_CODE (decl
) == TYPE_DECL
)
4693 *scope
= global_namespace
;
4697 my_friendly_abort (382);
4698 if (TREE_CODE_CLASS (TREE_CODE (*name
)) == 'd')
4699 *name
= DECL_NAME (*name
);
4700 /* Make a USING_DECL. */
4701 return push_using_decl (*scope
, *name
);
4704 /* Process local and global using-declarations. */
4707 do_nonmember_using_decl (scope
, name
, oldval
, oldtype
, newval
, newtype
)
4709 tree oldval
, oldtype
;
4710 tree
*newval
, *newtype
;
4713 struct tree_binding _decls
;
4715 *newval
= *newtype
= NULL_TREE
;
4716 decls
= binding_init (&_decls
);
4717 if (!qualified_lookup_using_namespace (name
, scope
, decls
, 0))
4721 if (!BINDING_VALUE (decls
) && !BINDING_TYPE (decls
))
4723 cp_error ("`%D' not declared", name
);
4727 /* Check for using functions. */
4728 if (BINDING_VALUE (decls
) && is_overloaded_fn (BINDING_VALUE (decls
)))
4732 if (oldval
&& !is_overloaded_fn (oldval
))
4734 duplicate_decls (OVL_CURRENT (BINDING_VALUE (decls
)), oldval
);
4739 for (tmp
= BINDING_VALUE (decls
); tmp
; tmp
= OVL_NEXT (tmp
))
4741 /* Compare each new function with each old one.
4742 If the old function was also used, there is no conflict. */
4743 for (tmp1
= oldval
; tmp1
; tmp1
= OVL_NEXT (tmp1
))
4744 if (OVL_CURRENT (tmp
) == OVL_CURRENT (tmp1
))
4746 else if (OVL_USED (tmp1
))
4748 else if (duplicate_decls (OVL_CURRENT (tmp
), OVL_CURRENT (tmp1
)))
4751 /* Duplicate use, ignore */
4755 *newval
= build_overload (OVL_CURRENT (tmp
), *newval
);
4756 if (TREE_CODE (*newval
) != OVERLOAD
)
4757 *newval
= ovl_cons (*newval
, NULL_TREE
);
4758 OVL_USED (*newval
) = 1;
4763 *newval
= BINDING_VALUE (decls
);
4765 duplicate_decls (*newval
, oldval
);
4768 *newtype
= BINDING_TYPE (decls
);
4769 if (oldtype
&& *newtype
&& oldtype
!= *newtype
)
4771 cp_error ("using directive `%D' introduced ambiguous type `%T'",
4777 /* Process a using-declaration not appearing in class or local scope. */
4780 do_toplevel_using_decl (decl
)
4783 tree scope
, name
, binding
;
4784 tree oldval
, oldtype
, newval
, newtype
;
4786 decl
= validate_nonmember_using_decl (decl
, &scope
, &name
);
4787 if (decl
== NULL_TREE
)
4790 binding
= binding_for_name (name
, current_namespace
);
4792 oldval
= BINDING_VALUE (binding
);
4793 oldtype
= BINDING_TYPE (binding
);
4795 do_nonmember_using_decl (scope
, name
, oldval
, oldtype
, &newval
, &newtype
);
4797 /* Copy declarations found. */
4799 BINDING_VALUE (binding
) = newval
;
4801 BINDING_TYPE (binding
) = newtype
;
4805 /* Process a using-declaration at function scope. */
4808 do_local_using_decl (decl
)
4812 tree oldval
, oldtype
, newval
, newtype
;
4814 decl
= validate_nonmember_using_decl (decl
, &scope
, &name
);
4815 if (decl
== NULL_TREE
)
4818 oldval
= lookup_name_current_level (name
);
4819 oldtype
= lookup_type_current_level (name
);
4821 do_nonmember_using_decl (scope
, name
, oldval
, oldtype
, &newval
, &newtype
);
4824 set_identifier_local_value (name
, newval
);
4826 set_identifier_type_value (name
, newtype
);
4830 do_class_using_decl (decl
)
4835 if (TREE_CODE (decl
) != SCOPE_REF
4836 || TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (decl
, 0))) != 't')
4838 cp_error ("using-declaration for non-member at class scope");
4841 name
= TREE_OPERAND (decl
, 1);
4842 if (TREE_CODE (name
) == BIT_NOT_EXPR
)
4844 cp_error ("using-declaration for destructor");
4847 if (TREE_CODE (name
) == TYPE_DECL
)
4848 name
= DECL_NAME (name
);
4850 my_friendly_assert (TREE_CODE (name
) == IDENTIFIER_NODE
, 980716);
4852 value
= build_lang_field_decl (USING_DECL
, name
, void_type_node
);
4853 DECL_INITIAL (value
) = TREE_OPERAND (decl
, 0);
4857 /* Process a using-directive. */
4860 do_using_directive (namespace)
4863 if (namespace == std_node
)
4865 /* using namespace A::B::C; */
4866 if (TREE_CODE (namespace) == SCOPE_REF
)
4867 namespace = TREE_OPERAND (namespace, 1);
4868 if (TREE_CODE (namespace) == IDENTIFIER_NODE
)
4870 /* Lookup in lexer did not find a namespace. */
4871 cp_error ("namespace `%T' undeclared", namespace);
4874 if (TREE_CODE (namespace) != NAMESPACE_DECL
)
4876 cp_error ("`%T' is not a namespace", namespace);
4879 namespace = ORIGINAL_NAMESPACE (namespace);
4880 if (!toplevel_bindings_p ())
4881 push_using_directive (namespace);
4884 add_using_namespace (current_namespace
, namespace, 0);
4888 check_default_args (x
)
4891 tree arg
= TYPE_ARG_TYPES (TREE_TYPE (x
));
4892 int saw_def
= 0, i
= 0 - (TREE_CODE (TREE_TYPE (x
)) == METHOD_TYPE
);
4893 for (; arg
&& arg
!= void_list_node
; arg
= TREE_CHAIN (arg
), ++i
)
4895 if (TREE_PURPOSE (arg
))
4899 cp_error_at ("default argument missing for parameter %P of `%+#D'",
4910 TREE_USED (decl
) = 1;
4911 if (processing_template_decl
)
4913 assemble_external (decl
);
4915 /* Is it a synthesized method that needs to be synthesized? */
4916 if (TREE_CODE (decl
) == FUNCTION_DECL
&& DECL_CLASS_CONTEXT (decl
)
4917 && DECL_ARTIFICIAL (decl
) && ! DECL_INITIAL (decl
)
4918 /* Kludge: don't synthesize for default args. */
4919 && current_function_decl
)
4920 synthesize_method (decl
);
4922 /* If this is a function or variable that is an instance of some
4923 template, we now know that we will need to actually do the
4924 instantiation. A TEMPLATE_DECL may also have DECL_TEMPLATE_INFO,
4925 if it's a partial instantiation, but there's no need to
4926 instantiate such a thing. We check that DECL is not an explicit
4927 instantiation because that is not checked in instantiate_decl. */
4928 if (TREE_CODE (decl
) != TEMPLATE_DECL
4929 && DECL_LANG_SPECIFIC (decl
) && DECL_TEMPLATE_INFO (decl
)
4930 && !DECL_EXPLICIT_INSTANTIATION (decl
))
4931 instantiate_decl (decl
);
4934 /* Helper function for named_class_head_sans_basetype nonterminal. */
4937 handle_class_head (aggr
, scope
, id
)
4938 tree aggr
, scope
, id
;
4940 if (TREE_CODE (id
) == TYPE_DECL
)
4944 cp_error ("`%T' does not have a nested type named `%D'", scope
, id
);
4946 cp_error ("no file-scope type named `%D'", id
);
4949 (aggr
, make_anon_name (), 1);
4950 return TYPE_MAIN_DECL (id
);