libcpp/

[pf3gnuchains/gcc-fork.git] / gcc / c-pragma.h

diff --git a/gcc/c-pragma.h b/gcc/c-pragma.h
index 057aca6..9876555 100644 (file)
--- a/gcc/c-pragma.h
+++ b/gcc/c-pragma.h
@@ -24,6 +24,16 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 
 #include <cpplib.h> /* For enum cpp_ttype.  */
 
+/* Pragma identifiers built in to the front end parsers.  Identifiers
+   for anciliary handlers will follow these.  */
+typedef enum pragma_kind {
+  PRAGMA_NONE = 0,
+
+  PRAGMA_GCC_PCH_PREPROCESS,
+
+  PRAGMA_FIRST_EXTERNAL
+} pragma_kind;
+
 /* Cause the `yydebug' variable to be defined.  */
 #define YYDEBUG 1
 extern int yydebug;
@@ -53,18 +63,23 @@ extern struct cpp_reader* parse_in;
 
 extern void init_pragma (void);
 
-/* Front-end wrappers for pragma registration to avoid dragging
-   cpplib.h in almost everywhere.  */
-extern void c_register_pragma (const char *, const char *,
-                              void (*) (struct cpp_reader *));
+/* Front-end wrappers for pragma registration.  */
+typedef void (*pragma_handler)(struct cpp_reader *);
+extern void c_register_pragma (const char *, const char *, pragma_handler);
 extern void c_register_pragma_with_expansion (const char *, const char *,
-                                             void (*) (struct cpp_reader *));
+                                             pragma_handler);
+extern void c_invoke_pragma_handler (unsigned int);
+
 extern void maybe_apply_pragma_weak (tree);
 extern void maybe_apply_pending_pragma_weaks (void);
 extern tree maybe_apply_renaming_pragma (tree, tree);
 extern void add_to_renaming_pragma_list (tree, tree);
 
 extern enum cpp_ttype pragma_lex (tree *);
+
+/* This is not actually available to pragma parsers.  It's merely a
+   convenient location to declare this function for c-lex, after
+   having enum cpp_ttype declared.  */
 extern enum cpp_ttype c_lex_with_flags (tree *, location_t *, unsigned char *);
 
 /* If 1, then lex strings into the execution character set.