/* Definitions for c-common.c.
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
2: STMT_LINENO_FOR_FN_P (in _STMT)
3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT)
COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT)
+ STMT_EXPR_WARN_UNUSED_RESULT (in STMT_EXPR)
4: SCOPE_PARTIAL_P (in SCOPE_STMT)
*/
RID_PUBLIC, RID_PRIVATE, RID_PROTECTED,
RID_TEMPLATE, RID_NULL, RID_CATCH,
RID_DELETE, RID_FALSE, RID_NAMESPACE,
- RID_NEW, RID_OPERATOR, RID_THIS,
- RID_THROW, RID_TRUE, RID_TRY,
- RID_TYPENAME, RID_TYPEID, RID_USING,
+ RID_NEW, RID_OFFSETOF, RID_OPERATOR,
+ RID_THIS, RID_THROW, RID_TRUE,
+ RID_TRY, RID_TYPENAME, RID_TYPEID,
+ RID_USING,
/* casts */
RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST,
RID_ID, RID_AT_ENCODE, RID_AT_END,
RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
- RID_AT_PROTOCOL, RID_AT_SELECTOR, RID_AT_INTERFACE,
+ RID_AT_PROTOCOL, RID_AT_SELECTOR,
+ RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH,
+ RID_AT_FINALLY, RID_AT_SYNCHRONIZED,
+ RID_AT_INTERFACE,
RID_AT_IMPLEMENTATION,
RID_MAX,
#define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
-/* g77 integer types, which which must be kept in sync with f/com.h */
+/* g77 integer types, which must be kept in sync with f/com.h */
#define g77_integer_type_node c_global_trees[CTI_G77_INTEGER_TYPE]
#define g77_uinteger_type_node c_global_trees[CTI_G77_UINTEGER_TYPE]
#define g77_longint_type_node c_global_trees[CTI_G77_LONGINT_TYPE]
extern GTY(()) tree c_global_trees[CTI_MAX];
-/* In a RECORD_TYPE, a sorted array of the fields of the type, not a tree for size reasons. */
+/* In a RECORD_TYPE, a sorted array of the fields of the type, not a
+ tree for size reasons. */
struct sorted_fields_type GTY(())
{
int len;
extern void (*lang_expand_stmt) (tree);
extern void (*lang_expand_decl_stmt) (tree);
extern void (*lang_expand_function_end) (void);
-extern tree gettags (void);
/* Callback that determines if it's ok for a function to have no
noreturn attribute. */
extern int (*lang_missing_noreturn_ok_p) (tree);
+extern void push_file_scope (void);
+extern void pop_file_scope (void);
extern int yyparse (void);
-extern void free_parser_stacks (void);
-
extern stmt_tree current_stmt_tree (void);
extern tree *current_scope_stmt_stack (void);
extern void begin_stmt_tree (tree *);
extern tree c_begin_while_stmt (void);
extern void c_finish_while_stmt_cond (tree, tree);
-enum sw_kind { SW_PARAM = 0, SW_LOCAL, SW_GLOBAL };
-extern void shadow_warning (enum sw_kind, const char *, tree);
extern int field_decl_cmp (const void *, const void *);
extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
void *);
-
-/* Extra information associated with a DECL. Other C dialects extend
- this structure in various ways. The C front-end only uses this
- structure for FUNCTION_DECLs; all other DECLs have a NULL
- DECL_LANG_SPECIFIC field. */
-
-struct c_lang_decl GTY(()) {
- unsigned declared_inline : 1;
-};
-
-/* In a FUNCTION_DECL for which DECL_BUILT_IN does not hold, this is
- the approximate number of statements in this function. There is
- no need for this number to be exact; it is only used in various
- heuristics regarding optimization. */
-#define DECL_ESTIMATED_INSNS(NODE) \
- (FUNCTION_DECL_CHECK (NODE)->decl.u1.i)
-
-/* Nonzero if we can read a PCH file now. */
-
-extern int allow_pch;
\f
/* Switches common to the C front ends. */
extern int flag_preprocess_only;
+/* Zero means that faster, ...NonNil variants of objc_msgSend...
+ calls will be used in ObjC; passing nil receivers to such calls
+ will most likely result in crashes. */
+extern int flag_nil_receivers;
+
+/* Nonzero means that we will allow new ObjC exception syntax (@throw,
+ @try, etc.) in source code. */
+extern int flag_objc_exceptions;
+
+/* Nonzero means that code generation will be altered to support
+ "zero-link" execution. This currently affects ObjC only, but may
+ affect other languages in the future. */
+extern int flag_zero_link;
+
+/* Nonzero means emit an '__OBJC, __image_info' for the current translation
+ unit. It will inform the ObjC runtime that class definition(s) herein
+ contained are to replace one(s) previously loaded. */
+extern int flag_replace_objc_classes;
+
/* Nonzero means don't output line number information. */
extern char flag_no_line_commands;
extern int flag_isoc99;
-/* Nonzero means that we have builtin functions, and main is an int */
+/* Nonzero means that we have builtin functions, and main is an int. */
extern int flag_hosted;
-/* Nonzero means add default format_arg attributes for functions not
- in ISO C. */
-
-extern int flag_noniso_default_format_attributes;
-
/* Nonzero means warn when casting a function call to a type that does
not match the return type (e.g. (float)sqrt() or (anything*)malloc()
when there is no previous declaration of sqrt or malloc. */
extern int warn_traditional;
+/* Nonzero means warn for a declaration found after a statement. */
+
+extern int warn_declaration_after_statement;
+
/* Nonzero means warn for non-prototype function decls
or non-prototyped defs without previous prototype. */
extern int warn_sequence_point;
+/* Nonzero means warn about uninitialized variable when it is initialized with itself.
+ For example: int i = i;, GCC will not warn about this when warn_init_self is nonzero. */
+
+extern int warn_init_self;
+
+
/* Nonzero means to warn about compile-time division by zero. */
extern int warn_div_by_zero;
extern int warn_nonnull;
+/* Warn about old-style parameter declaration. */
+
+extern int warn_old_style_definition;
+
/* ObjC language option variables. */
extern int flag_implement_inlines;
-/* Nonzero means do emit exported implementations of templates, instead of
- multiple static copies in each file that needs a definition. */
-
-extern int flag_external_templates;
-
-/* Nonzero means that the decision to emit or not emit the implementation of a
- template depends on where the template is instantiated, rather than where
- it is defined. */
-
-extern int flag_alt_external_templates;
-
/* Nonzero means that implicit instantiations will be emitted if needed. */
extern int flag_implicit_templates;
extern int flag_weak;
+/* 0 means we want the preprocessor to not emit line directives for
+ the current working directory. 1 means we want it to do it. -1
+ means we should decide depending on whether debugging information
+ is being emitted or not. */
+
+extern int flag_working_directory;
+
/* Nonzero to use __cxa_atexit, rather than atexit, to register
destructors for local statics and global objects. */
extern int flag_use_cxa_atexit;
-/* Nonzero means output .vtable_{entry,inherit} for use in doing vtable gc. */
-
-extern int flag_vtable_gc;
-
/* Nonzero means make the default pedwarns warnings instead of errors.
The value of this flag is ignored if -pedantic is specified. */
extern int flag_enforce_eh_specs;
-/* The version of the C++ ABI in use. The following values are
- allowed:
-
- 0: The version of the ABI believed most conformant with the
- C++ ABI specification. This ABI may change as bugs are
- discovered and fixed. Therefore, 0 will not necessarily
- indicate the same ABI in different versions of G++.
-
- 1: The version of the ABI first used in G++ 3.2.
-
- Additional positive integers will be assigned as new versions of
- the ABI become the default version of the ABI. */
-
-extern int flag_abi_version;
-
/* Nonzero means warn about things that will change when compiling
with an ABI-compliant compiler. */
extern int skip_evaluation;
-/* The count of input filenames. Only really valid for comparisons
- against 1. */
-
-extern unsigned num_in_fnames;
-
/* C types are partitioned into three subsets: object, function, and
incomplete types. */
#define C_TYPE_OBJECT_P(type) \
extern void set_Wformat (int);
extern tree handle_format_attribute (tree *, tree, tree, int, bool *);
extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
-extern void c_common_insert_default_attributes (tree);
extern int c_common_handle_option (size_t code, const char *arg, int value);
-extern void c_common_handle_filename (const char *filename);
extern bool c_common_missing_argument (const char *opt, size_t code);
extern tree c_common_type_for_mode (enum machine_mode, int);
extern tree c_common_type_for_size (unsigned int, int);
extern void overflow_warning (tree);
extern void unsigned_conversion_warning (tree, tree);
-/* Read the rest of the current #-directive line. */
-extern char *get_directive_line (void);
-#define GET_DIRECTIVE_LINE() get_directive_line ()
#define c_sizeof(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 1)
#define c_alignof(T) c_sizeof_or_alignof_type (T, ALIGNOF_EXPR, 1)
extern void c_common_finish (void);
extern void c_common_parse_file (int);
extern HOST_WIDE_INT c_common_get_alias_set (tree);
+extern void c_register_builtin_type (tree, const char*);
extern bool c_promoting_integer_type_p (tree);
extern int self_promoting_args_p (tree);
extern tree strip_array_types (tree);
+extern tree strip_pointer_operator (tree);
-/* This function resets the parsers' state in preparation for parsing
- a new file. */
-extern void c_reset_state (void);
/* This is the basic parsing function. */
extern void c_parse_file (void);
/* This is misnamed, it actually performs end-of-compilation processing. */
#define STMT_EXPR_NO_SCOPE(NODE) \
TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
+/* Nonzero if this statement-expression should cause warning if its result
+ is not used. */
+#define STMT_EXPR_WARN_UNUSED_RESULT(NODE) \
+ TREE_LANG_FLAG_3 (STMT_EXPR_CHECK (NODE))
+
/* LABEL_STMT accessor. This gives access to the label associated with
the given label statement. */
#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
initializers and cleanups. */
#define COMPOUND_STMT_BODY_BLOCK(NODE) TREE_LANG_FLAG_3 (NODE)
-extern void c_expand_asm_operands (tree, tree, tree, tree, int, const char *, int);
+extern void c_expand_asm_operands (tree, tree, tree, tree, int, location_t);
/* These functions must be defined by each front-end which implements
a variant of the C language. They are used in c-common.c. */
different implementations. Used in c-common.c. */
extern tree lookup_label (tree);
-extern rtx c_expand_expr (tree, rtx, enum machine_mode, int);
+extern int vector_types_convertible_p (tree t1, tree t2);
+
+extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *);
extern int c_safe_from_p (rtx, tree);
/* Positive if an implicit `extern "C"' scope has just been entered;
negative if such a scope has just been exited. */
-extern int pending_lang_change;
+extern GTY(()) int pending_lang_change;
/* Information recorded about each file examined during compilation. */
extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd,
const char *orig);
extern void c_common_write_pch (void);
+extern void c_common_no_more_pch (void);
extern void builtin_define_with_value (const char *, const char *, int);
extern void c_stddef_cpp_builtins (void);
extern void fe_file_change (const struct line_map *);
extern int c_estimate_num_insns (tree decl);
+extern bool c_decl_uninit (tree t);
+extern void c_parse_error (const char *, enum cpp_ttype, tree);
+
+/* The following have been moved here from c-tree.h, since they're needed
+ in the ObjC++ world, too. What is more, stub-objc.c could use a few
+ prototypes. */
+extern tree lookup_interface (tree);
+extern tree is_class_name (tree);
+extern tree objc_is_object_ptr (tree);
+extern void objc_check_decl (tree);
+extern int objc_comptypes (tree, tree, int);
+extern tree objc_message_selector (void);
+extern tree lookup_objc_ivar (tree);
+extern void *get_current_scope (void);
+extern void objc_mark_locals_volatile (void *);
/* In c-ppoutput.c */
extern void init_pp_output (FILE *);
extern void preprocess_file (cpp_reader *);
extern void pp_file_change (const struct line_map *);
+extern void pp_dir_change (cpp_reader *, const char *);
#endif /* ! GCC_C_COMMON_H */
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