1 /* Separate lexical analyzer for GNU C++.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
4 Hacked by Michael Tiemann (tiemann@cygnus.com)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
24 /* This file is the lexical analyzer for GNU C++. */
28 #include "coretypes.h"
41 static int interface_strcmp (const char *);
42 static void init_cp_pragma (void);
44 static tree
parse_strconst_pragma (const char *, int);
45 static void handle_pragma_vtable (cpp_reader
*);
46 static void handle_pragma_unit (cpp_reader
*);
47 static void handle_pragma_interface (cpp_reader
*);
48 static void handle_pragma_implementation (cpp_reader
*);
49 static void handle_pragma_java_exceptions (cpp_reader
*);
51 static void init_operators (void);
52 static void copy_lang_type (tree
);
54 /* A constraint that can be tested at compile time. */
55 #define CONSTRAINT(name, expr) extern int constraint_##name [(expr) ? 1 : -1]
57 /* Functions and data structures for #pragma interface.
59 `#pragma implementation' means that the main file being compiled
60 is considered to implement (provide) the classes that appear in
61 its main body. I.e., if this is file "foo.cc", and class `bar'
62 is defined in "foo.cc", then we say that "foo.cc implements bar".
64 All main input files "implement" themselves automagically.
66 `#pragma interface' means that unless this file (of the form "foo.h"
67 is not presently being included by file "foo.cc", the
68 CLASSTYPE_INTERFACE_ONLY bit gets set. The effect is that none
69 of the vtables nor any of the inline functions defined in foo.h
72 There are cases when we want to link files such as "defs.h" and
73 "main.cc". In this case, we give "defs.h" a `#pragma interface',
74 and "main.cc" has `#pragma implementation "defs.h"'. */
79 struct impl_files
*next
;
82 static struct impl_files
*impl_file_chain
;
91 /* A mapping from tree codes to operator name information. */
92 operator_name_info_t operator_name_info
[(int) LAST_CPLUS_TREE_CODE
];
93 /* Similar, but for assignment operators. */
94 operator_name_info_t assignment_operator_name_info
[(int) LAST_CPLUS_TREE_CODE
];
96 /* Initialize data structures that keep track of operator names. */
98 #define DEF_OPERATOR(NAME, C, M, AR, AP) \
99 CONSTRAINT (C, sizeof "operator " + sizeof NAME <= 256);
100 #include "operators.def"
104 init_operators (void)
108 struct operator_name_info_t
*oni
;
110 #define DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, ASSN_P) \
111 sprintf (buffer, ISALPHA (NAME[0]) ? "operator %s" : "operator%s", NAME); \
112 identifier = get_identifier (buffer); \
113 IDENTIFIER_OPNAME_P (identifier) = 1; \
116 ? &assignment_operator_name_info[(int) CODE] \
117 : &operator_name_info[(int) CODE]); \
118 oni->identifier = identifier; \
120 oni->mangled_name = MANGLING; \
123 #include "operators.def"
126 operator_name_info
[(int) ERROR_MARK
].identifier
127 = get_identifier ("<invalid operator>");
129 /* Handle some special cases. These operators are not defined in
130 the language, but can be produced internally. We may need them
131 for error-reporting. (Eventually, we should ensure that this
132 does not happen. Error messages involving these operators will
133 be confusing to users.) */
135 operator_name_info
[(int) INIT_EXPR
].name
136 = operator_name_info
[(int) MODIFY_EXPR
].name
;
137 operator_name_info
[(int) EXACT_DIV_EXPR
].name
= "(ceiling /)";
138 operator_name_info
[(int) CEIL_DIV_EXPR
].name
= "(ceiling /)";
139 operator_name_info
[(int) FLOOR_DIV_EXPR
].name
= "(floor /)";
140 operator_name_info
[(int) ROUND_DIV_EXPR
].name
= "(round /)";
141 operator_name_info
[(int) CEIL_MOD_EXPR
].name
= "(ceiling %)";
142 operator_name_info
[(int) FLOOR_MOD_EXPR
].name
= "(floor %)";
143 operator_name_info
[(int) ROUND_MOD_EXPR
].name
= "(round %)";
144 operator_name_info
[(int) ABS_EXPR
].name
= "abs";
145 operator_name_info
[(int) TRUTH_AND_EXPR
].name
= "strict &&";
146 operator_name_info
[(int) TRUTH_OR_EXPR
].name
= "strict ||";
147 operator_name_info
[(int) RANGE_EXPR
].name
= "...";
148 operator_name_info
[(int) UNARY_PLUS_EXPR
].name
= "+";
150 assignment_operator_name_info
[(int) EXACT_DIV_EXPR
].name
152 assignment_operator_name_info
[(int) CEIL_DIV_EXPR
].name
154 assignment_operator_name_info
[(int) FLOOR_DIV_EXPR
].name
156 assignment_operator_name_info
[(int) ROUND_DIV_EXPR
].name
158 assignment_operator_name_info
[(int) CEIL_MOD_EXPR
].name
160 assignment_operator_name_info
[(int) FLOOR_MOD_EXPR
].name
162 assignment_operator_name_info
[(int) ROUND_MOD_EXPR
].name
166 /* The reserved keyword table. */
169 const char *const word
;
170 ENUM_BITFIELD(rid
) const rid
: 16;
171 const unsigned int disable
: 16;
174 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
176 #define D_EXT 0x01 /* GCC extension */
177 #define D_ASM 0x02 /* in C99, but has a switch to turn it off */
178 #define D_OBJC 0x04 /* Objective C++ only */
180 CONSTRAINT(ridbits_fit
, RID_LAST_MODIFIER
< sizeof(unsigned long) * CHAR_BIT
);
182 static const struct resword reswords
[] =
184 { "_Complex", RID_COMPLEX
, 0 },
185 { "__FUNCTION__", RID_FUNCTION_NAME
, 0 },
186 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME
, 0 },
187 { "__alignof", RID_ALIGNOF
, 0 },
188 { "__alignof__", RID_ALIGNOF
, 0 },
189 { "__asm", RID_ASM
, 0 },
190 { "__asm__", RID_ASM
, 0 },
191 { "__attribute", RID_ATTRIBUTE
, 0 },
192 { "__attribute__", RID_ATTRIBUTE
, 0 },
193 { "__builtin_offsetof", RID_OFFSETOF
, 0 },
194 { "__builtin_va_arg", RID_VA_ARG
, 0 },
195 { "__complex", RID_COMPLEX
, 0 },
196 { "__complex__", RID_COMPLEX
, 0 },
197 { "__const", RID_CONST
, 0 },
198 { "__const__", RID_CONST
, 0 },
199 { "__extension__", RID_EXTENSION
, 0 },
200 { "__func__", RID_C99_FUNCTION_NAME
, 0 },
201 { "__imag", RID_IMAGPART
, 0 },
202 { "__imag__", RID_IMAGPART
, 0 },
203 { "__inline", RID_INLINE
, 0 },
204 { "__inline__", RID_INLINE
, 0 },
205 { "__label__", RID_LABEL
, 0 },
206 { "__null", RID_NULL
, 0 },
207 { "__real", RID_REALPART
, 0 },
208 { "__real__", RID_REALPART
, 0 },
209 { "__restrict", RID_RESTRICT
, 0 },
210 { "__restrict__", RID_RESTRICT
, 0 },
211 { "__signed", RID_SIGNED
, 0 },
212 { "__signed__", RID_SIGNED
, 0 },
213 { "__thread", RID_THREAD
, 0 },
214 { "__typeof", RID_TYPEOF
, 0 },
215 { "__typeof__", RID_TYPEOF
, 0 },
216 { "__volatile", RID_VOLATILE
, 0 },
217 { "__volatile__", RID_VOLATILE
, 0 },
218 { "asm", RID_ASM
, D_ASM
},
219 { "auto", RID_AUTO
, 0 },
220 { "bool", RID_BOOL
, 0 },
221 { "break", RID_BREAK
, 0 },
222 { "case", RID_CASE
, 0 },
223 { "catch", RID_CATCH
, 0 },
224 { "char", RID_CHAR
, 0 },
225 { "class", RID_CLASS
, 0 },
226 { "const", RID_CONST
, 0 },
227 { "const_cast", RID_CONSTCAST
, 0 },
228 { "continue", RID_CONTINUE
, 0 },
229 { "default", RID_DEFAULT
, 0 },
230 { "delete", RID_DELETE
, 0 },
232 { "double", RID_DOUBLE
, 0 },
233 { "dynamic_cast", RID_DYNCAST
, 0 },
234 { "else", RID_ELSE
, 0 },
235 { "enum", RID_ENUM
, 0 },
236 { "explicit", RID_EXPLICIT
, 0 },
237 { "export", RID_EXPORT
, 0 },
238 { "extern", RID_EXTERN
, 0 },
239 { "false", RID_FALSE
, 0 },
240 { "float", RID_FLOAT
, 0 },
241 { "for", RID_FOR
, 0 },
242 { "friend", RID_FRIEND
, 0 },
243 { "goto", RID_GOTO
, 0 },
245 { "inline", RID_INLINE
, 0 },
246 { "int", RID_INT
, 0 },
247 { "long", RID_LONG
, 0 },
248 { "mutable", RID_MUTABLE
, 0 },
249 { "namespace", RID_NAMESPACE
, 0 },
250 { "new", RID_NEW
, 0 },
251 { "operator", RID_OPERATOR
, 0 },
252 { "private", RID_PRIVATE
, 0 },
253 { "protected", RID_PROTECTED
, 0 },
254 { "public", RID_PUBLIC
, 0 },
255 { "register", RID_REGISTER
, 0 },
256 { "reinterpret_cast", RID_REINTCAST
, 0 },
257 { "return", RID_RETURN
, 0 },
258 { "short", RID_SHORT
, 0 },
259 { "signed", RID_SIGNED
, 0 },
260 { "sizeof", RID_SIZEOF
, 0 },
261 { "static", RID_STATIC
, 0 },
262 { "static_cast", RID_STATCAST
, 0 },
263 { "struct", RID_STRUCT
, 0 },
264 { "switch", RID_SWITCH
, 0 },
265 { "template", RID_TEMPLATE
, 0 },
266 { "this", RID_THIS
, 0 },
267 { "throw", RID_THROW
, 0 },
268 { "true", RID_TRUE
, 0 },
269 { "try", RID_TRY
, 0 },
270 { "typedef", RID_TYPEDEF
, 0 },
271 { "typename", RID_TYPENAME
, 0 },
272 { "typeid", RID_TYPEID
, 0 },
273 { "typeof", RID_TYPEOF
, D_ASM
|D_EXT
},
274 { "union", RID_UNION
, 0 },
275 { "unsigned", RID_UNSIGNED
, 0 },
276 { "using", RID_USING
, 0 },
277 { "virtual", RID_VIRTUAL
, 0 },
278 { "void", RID_VOID
, 0 },
279 { "volatile", RID_VOLATILE
, 0 },
280 { "wchar_t", RID_WCHAR
, 0 },
281 { "while", RID_WHILE
, 0 },
283 /* The remaining keywords are specific to Objective-C++. NB:
284 All of them will remain _disabled_, since they are context-
287 /* These ObjC keywords are recognized only immediately after
288 an '@'. NB: The following C++ keywords double as
289 ObjC keywords in this context: RID_CLASS, RID_PRIVATE,
290 RID_PROTECTED, RID_PUBLIC, RID_THROW, RID_TRY and RID_CATCH. */
291 { "compatibility_alias", RID_AT_ALIAS
, D_OBJC
},
292 { "defs", RID_AT_DEFS
, D_OBJC
},
293 { "encode", RID_AT_ENCODE
, D_OBJC
},
294 { "end", RID_AT_END
, D_OBJC
},
295 { "implementation", RID_AT_IMPLEMENTATION
, D_OBJC
},
296 { "interface", RID_AT_INTERFACE
, D_OBJC
},
297 { "protocol", RID_AT_PROTOCOL
, D_OBJC
},
298 { "selector", RID_AT_SELECTOR
, D_OBJC
},
299 { "finally", RID_AT_FINALLY
, D_OBJC
},
300 { "synchronized", RID_AT_SYNCHRONIZED
, D_OBJC
},
301 /* These are recognized only in protocol-qualifier context. */
302 { "bycopy", RID_BYCOPY
, D_OBJC
},
303 { "byref", RID_BYREF
, D_OBJC
},
304 { "in", RID_IN
, D_OBJC
},
305 { "inout", RID_INOUT
, D_OBJC
},
306 { "oneway", RID_ONEWAY
, D_OBJC
},
307 { "out", RID_OUT
, D_OBJC
},
315 int mask
= ((flag_no_asm
? D_ASM
: 0)
317 | (flag_no_gnu_keywords
? D_EXT
: 0));
319 ridpointers
= GGC_CNEWVEC (tree
, (int) RID_MAX
);
320 for (i
= 0; i
< ARRAY_SIZE (reswords
); i
++)
322 id
= get_identifier (reswords
[i
].word
);
323 C_RID_CODE (id
) = reswords
[i
].rid
;
324 ridpointers
[(int) reswords
[i
].rid
] = id
;
325 if (! (reswords
[i
].disable
& mask
))
326 C_IS_RESERVED_WORD (id
) = 1;
331 init_cp_pragma (void)
333 c_register_pragma (0, "vtable", handle_pragma_vtable
);
334 c_register_pragma (0, "unit", handle_pragma_unit
);
335 c_register_pragma (0, "interface", handle_pragma_interface
);
336 c_register_pragma (0, "implementation", handle_pragma_implementation
);
337 c_register_pragma ("GCC", "interface", handle_pragma_interface
);
338 c_register_pragma ("GCC", "implementation", handle_pragma_implementation
);
339 c_register_pragma ("GCC", "java_exceptions", handle_pragma_java_exceptions
);
342 /* TRUE if a code represents a statement. */
344 bool statement_code_p
[MAX_TREE_CODES
];
346 /* Initialize the C++ front end. This function is very sensitive to
347 the exact order that things are done here. It would be nice if the
348 initialization done by this routine were moved to its subroutines,
349 and the ordering dependencies clarified and reduced. */
354 static const enum tree_code stmt_codes
[] = {
355 CTOR_INITIALIZER
, TRY_BLOCK
, HANDLER
,
356 EH_SPEC_BLOCK
, USING_STMT
, TAG_DEFN
,
357 IF_STMT
, CLEANUP_STMT
, FOR_STMT
,
358 WHILE_STMT
, DO_STMT
, BREAK_STMT
,
359 CONTINUE_STMT
, SWITCH_STMT
, EXPR_STMT
362 memset (&statement_code_p
, 0, sizeof (statement_code_p
));
363 for (i
= 0; i
< ARRAY_SIZE (stmt_codes
); i
++)
364 statement_code_p
[stmt_codes
[i
]] = true;
366 /* We cannot just assign to input_filename because it has already
367 been initialized and will be used later as an N_BINCL for stabs+
369 #ifdef USE_MAPPED_LOCATION
370 push_srcloc (BUILTINS_LOCATION
);
372 push_srcloc ("<built-in>", 0);
377 init_cp_semantics ();
382 current_function_decl
= NULL
;
384 class_type_node
= ridpointers
[(int) RID_CLASS
];
386 cxx_init_decl_processing ();
388 /* The fact that G++ uses COMDAT for many entities (inline
389 functions, template instantiations, virtual tables, etc.) mean
390 that it is fundamentally unreliable to try to make decisions
391 about whether or not to output a particular entity until the end
392 of the compilation. However, the inliner requires that functions
393 be provided to the back end if they are to be inlined.
394 Therefore, we always use unit-at-a-time mode; in that mode, we
395 can provide entities to the back end and it will decide what to
396 emit based on what is actually needed. */
397 flag_unit_at_a_time
= 1;
399 if (c_common_init () == false)
413 /* Return nonzero if S is not considered part of an
414 INTERFACE/IMPLEMENTATION pair. Otherwise, return 0. */
417 interface_strcmp (const char* s
)
419 /* Set the interface/implementation bits for this scope. */
420 struct impl_files
*ifiles
;
423 for (ifiles
= impl_file_chain
; ifiles
; ifiles
= ifiles
->next
)
425 const char *t1
= ifiles
->filename
;
428 if (*s1
!= *t1
|| *s1
== 0)
431 while (*s1
== *t1
&& *s1
!= 0)
438 /* Don't get faked out by xxx.yyy.cc vs xxx.zzz.cc. */
439 if (strchr (s1
, '.') || strchr (t1
, '.'))
442 if (*s1
== '\0' || s1
[-1] != '.' || t1
[-1] != '.')
455 /* Parse a #pragma whose sole argument is a string constant.
456 If OPT is true, the argument is optional. */
458 parse_strconst_pragma (const char* name
, int opt
)
463 t
= pragma_lex (&result
);
466 if (pragma_lex (&x
) != CPP_EOF
)
467 warning (0, "junk at end of #pragma %s", name
);
471 if (t
== CPP_EOF
&& opt
)
474 error ("invalid #pragma %s", name
);
475 return error_mark_node
;
479 handle_pragma_vtable (cpp_reader
* dfile ATTRIBUTE_UNUSED
)
481 parse_strconst_pragma ("vtable", 0);
482 sorry ("#pragma vtable no longer supported");
486 handle_pragma_unit (cpp_reader
* dfile ATTRIBUTE_UNUSED
)
488 /* Validate syntax, but don't do anything. */
489 parse_strconst_pragma ("unit", 0);
493 handle_pragma_interface (cpp_reader
* dfile ATTRIBUTE_UNUSED
)
495 tree fname
= parse_strconst_pragma ("interface", 1);
496 struct c_fileinfo
*finfo
;
497 const char *filename
;
499 if (fname
== error_mark_node
)
502 filename
= lbasename (input_filename
);
504 filename
= ggc_strdup (TREE_STRING_POINTER (fname
));
506 finfo
= get_fileinfo (input_filename
);
508 if (impl_file_chain
== 0)
510 /* If this is zero at this point, then we are
511 auto-implementing. */
512 if (main_input_filename
== 0)
513 main_input_filename
= input_filename
;
516 finfo
->interface_only
= interface_strcmp (filename
);
517 /* If MULTIPLE_SYMBOL_SPACES is set, we cannot assume that we can see
518 a definition in another file. */
519 if (!MULTIPLE_SYMBOL_SPACES
|| !finfo
->interface_only
)
520 finfo
->interface_unknown
= 0;
523 /* Note that we have seen a #pragma implementation for the key MAIN_FILENAME.
524 We used to only allow this at toplevel, but that restriction was buggy
525 in older compilers and it seems reasonable to allow it in the headers
526 themselves, too. It only needs to precede the matching #p interface.
528 We don't touch finfo->interface_only or finfo->interface_unknown;
529 the user must specify a matching #p interface for this to have
533 handle_pragma_implementation (cpp_reader
* dfile ATTRIBUTE_UNUSED
)
535 tree fname
= parse_strconst_pragma ("implementation", 1);
536 const char *filename
;
537 struct impl_files
*ifiles
= impl_file_chain
;
539 if (fname
== error_mark_node
)
544 if (main_input_filename
)
545 filename
= main_input_filename
;
547 filename
= input_filename
;
548 filename
= lbasename (filename
);
552 filename
= ggc_strdup (TREE_STRING_POINTER (fname
));
554 /* We currently cannot give this diagnostic, as we reach this point
555 only after cpplib has scanned the entire translation unit, so
556 cpp_included always returns true. A plausible fix is to compare
557 the current source-location cookie with the first source-location
558 cookie (if any) of the filename, but this requires completing the
559 --enable-mapped-location project first. See PR 17577. */
560 if (cpp_included (parse_in
, filename
))
561 warning (0, "#pragma implementation for %qs appears after "
562 "file is included", filename
);
566 for (; ifiles
; ifiles
= ifiles
->next
)
568 if (! strcmp (ifiles
->filename
, filename
))
573 ifiles
= XNEW (struct impl_files
);
574 ifiles
->filename
= filename
;
575 ifiles
->next
= impl_file_chain
;
576 impl_file_chain
= ifiles
;
580 /* Indicate that this file uses Java-personality exception handling. */
582 handle_pragma_java_exceptions (cpp_reader
* dfile ATTRIBUTE_UNUSED
)
585 if (pragma_lex (&x
) != CPP_EOF
)
586 warning (0, "junk at end of #pragma GCC java_exceptions");
588 choose_personality_routine (lang_java
);
591 /* Issue an error message indicating that the lookup of NAME (an
592 IDENTIFIER_NODE) failed. Returns the ERROR_MARK_NODE. */
595 unqualified_name_lookup_error (tree name
)
597 if (IDENTIFIER_OPNAME_P (name
))
599 if (name
!= ansi_opname (ERROR_MARK
))
600 error ("%qD not defined", name
);
604 error ("%qD was not declared in this scope", name
);
605 /* Prevent repeated error messages by creating a VAR_DECL with
606 this NAME in the innermost block scope. */
607 if (current_function_decl
)
610 decl
= build_decl (VAR_DECL
, name
, error_mark_node
);
611 DECL_CONTEXT (decl
) = current_function_decl
;
612 push_local_binding (name
, decl
, 0);
613 /* Mark the variable as used so that we do not get warnings
614 about it being unused later. */
615 TREE_USED (decl
) = 1;
619 return error_mark_node
;
622 /* Like unqualified_name_lookup_error, but NAME is an unqualified-id
623 used as a function. Returns an appropriate expression for
627 unqualified_fn_lookup_error (tree name
)
629 if (processing_template_decl
)
631 /* In a template, it is invalid to write "f()" or "f(3)" if no
632 declaration of "f" is available. Historically, G++ and most
633 other compilers accepted that usage since they deferred all name
634 lookup until instantiation time rather than doing unqualified
635 name lookup at template definition time; explain to the user what
638 Note that we have the exact wording of the following message in
639 the manual (trouble.texi, node "Name lookup"), so they need to
641 pedwarn ("there are no arguments to %qD that depend on a template "
642 "parameter, so a declaration of %qD must be available",
645 if (!flag_permissive
)
650 error ("(if you use %<-fpermissive%>, G++ will accept your "
651 "code, but allowing the use of an undeclared name is "
659 return unqualified_name_lookup_error (name
);
663 build_lang_decl (enum tree_code code
, tree name
, tree type
)
667 t
= build_decl (code
, name
, type
);
668 retrofit_lang_decl (t
);
670 /* All nesting of C++ functions is lexical; there is never a "static
671 chain" in the sense of GNU C nested functions. */
672 if (code
== FUNCTION_DECL
)
673 DECL_NO_STATIC_CHAIN (t
) = 1;
678 /* Add DECL_LANG_SPECIFIC info to T. Called from build_lang_decl
679 and pushdecl (for functions generated by the backend). */
682 retrofit_lang_decl (tree t
)
684 struct lang_decl
*ld
;
687 if (CAN_HAVE_FULL_LANG_DECL_P (t
))
688 size
= sizeof (struct lang_decl
);
690 size
= sizeof (struct lang_decl_flags
);
692 ld
= GGC_CNEWVAR (struct lang_decl
, size
);
694 ld
->decl_flags
.can_be_full
= CAN_HAVE_FULL_LANG_DECL_P (t
) ? 1 : 0;
695 ld
->decl_flags
.u1sel
= TREE_CODE (t
) == NAMESPACE_DECL
? 1 : 0;
696 ld
->decl_flags
.u2sel
= 0;
697 if (ld
->decl_flags
.can_be_full
)
698 ld
->u
.f
.u3sel
= TREE_CODE (t
) == FUNCTION_DECL
? 1 : 0;
700 DECL_LANG_SPECIFIC (t
) = ld
;
701 if (current_lang_name
== lang_name_cplusplus
702 || decl_linkage (t
) == lk_none
)
703 SET_DECL_LANGUAGE (t
, lang_cplusplus
);
704 else if (current_lang_name
== lang_name_c
)
705 SET_DECL_LANGUAGE (t
, lang_c
);
706 else if (current_lang_name
== lang_name_java
)
707 SET_DECL_LANGUAGE (t
, lang_java
);
711 #ifdef GATHER_STATISTICS
712 tree_node_counts
[(int)lang_decl
] += 1;
713 tree_node_sizes
[(int)lang_decl
] += size
;
718 cxx_dup_lang_specific_decl (tree node
)
721 struct lang_decl
*ld
;
723 if (! DECL_LANG_SPECIFIC (node
))
726 if (!CAN_HAVE_FULL_LANG_DECL_P (node
))
727 size
= sizeof (struct lang_decl_flags
);
729 size
= sizeof (struct lang_decl
);
730 ld
= GGC_NEWVAR (struct lang_decl
, size
);
731 memcpy (ld
, DECL_LANG_SPECIFIC (node
), size
);
732 DECL_LANG_SPECIFIC (node
) = ld
;
734 #ifdef GATHER_STATISTICS
735 tree_node_counts
[(int)lang_decl
] += 1;
736 tree_node_sizes
[(int)lang_decl
] += size
;
740 /* Copy DECL, including any language-specific parts. */
743 copy_decl (tree decl
)
747 copy
= copy_node (decl
);
748 cxx_dup_lang_specific_decl (copy
);
752 /* Replace the shared language-specific parts of NODE with a new copy. */
755 copy_lang_type (tree node
)
758 struct lang_type
*lt
;
760 if (! TYPE_LANG_SPECIFIC (node
))
763 if (TYPE_LANG_SPECIFIC (node
)->u
.h
.is_lang_type_class
)
764 size
= sizeof (struct lang_type
);
766 size
= sizeof (struct lang_type_ptrmem
);
767 lt
= GGC_NEWVAR (struct lang_type
, size
);
768 memcpy (lt
, TYPE_LANG_SPECIFIC (node
), size
);
769 TYPE_LANG_SPECIFIC (node
) = lt
;
771 #ifdef GATHER_STATISTICS
772 tree_node_counts
[(int)lang_type
] += 1;
773 tree_node_sizes
[(int)lang_type
] += size
;
777 /* Copy TYPE, including any language-specific parts. */
780 copy_type (tree type
)
784 copy
= copy_node (type
);
785 copy_lang_type (copy
);
790 cxx_make_type (enum tree_code code
)
792 tree t
= make_node (code
);
794 /* Create lang_type structure. */
795 if (IS_AGGR_TYPE_CODE (code
)
796 || code
== BOUND_TEMPLATE_TEMPLATE_PARM
)
798 struct lang_type
*pi
= GGC_CNEW (struct lang_type
);
800 TYPE_LANG_SPECIFIC (t
) = pi
;
801 pi
->u
.c
.h
.is_lang_type_class
= 1;
803 #ifdef GATHER_STATISTICS
804 tree_node_counts
[(int)lang_type
] += 1;
805 tree_node_sizes
[(int)lang_type
] += sizeof (struct lang_type
);
809 /* Set up some flags that give proper default behavior. */
810 if (IS_AGGR_TYPE_CODE (code
))
812 struct c_fileinfo
*finfo
= get_fileinfo (input_filename
);
813 SET_CLASSTYPE_INTERFACE_UNKNOWN_X (t
, finfo
->interface_unknown
);
814 CLASSTYPE_INTERFACE_ONLY (t
) = finfo
->interface_only
;
821 make_aggr_type (enum tree_code code
)
823 tree t
= cxx_make_type (code
);
825 if (IS_AGGR_TYPE_CODE (code
))
826 SET_IS_AGGR_TYPE (t
, 1);