diff options
Diffstat (limited to 'gcc/cpplib.h')
| -rw-r--r-- | gcc/cpplib.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/gcc/cpplib.h b/gcc/cpplib.h index fdd9a4e..15187c4 100644 --- a/gcc/cpplib.h +++ b/gcc/cpplib.h @@ -382,7 +382,13 @@ struct cpp_callbacks { /* Called when a new line of preprocessed output is started. */ void (*line_change) (cpp_reader *, const cpp_token *, int); + + /* Called when switching to/from a new file. + The line_map is for the new file. It is NULL if there is no new file. + (In C this happens when done with <built-in>+<command line> and also + when done with a main file.) This can be used for resource cleanup. */ void (*file_change) (cpp_reader *, const struct line_map *); + void (*dir_change) (cpp_reader *, const char *); void (*include) (cpp_reader *, unsigned int, const unsigned char *, const char *, int); @@ -526,12 +532,14 @@ extern const struct line_maps *cpp_get_line_maps (cpp_reader *); extern cpp_callbacks *cpp_get_callbacks (cpp_reader *); extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *); -/* This function reads the file, but does not start preprocessing. It - returns the name of the original file; this is the same as the - input file, except for preprocessed input. This will generate at - least one file change callback, and possibly a line change callback - too. If there was an error opening the file, it returns NULL. */ -extern const char *cpp_read_main_file (cpp_reader *, const char *); +/* This function finds the main file, but does not start reading it. + Returns true iff the file was found. */ +extern bool cpp_find_main_file (cpp_reader *, const char *); + +/* This function reads the file, but does not start preprocessing. + This will generate at least one file change callback, and possibly + a line change callback. */ +extern void cpp_push_main_file (cpp_reader *); /* Set up built-ins like __FILE__. */ extern void cpp_init_builtins (cpp_reader *, int); @@ -590,7 +598,7 @@ extern void cpp_unassert (cpp_reader *, const char *); extern void cpp_undef_all (cpp_reader *); extern cpp_buffer *cpp_push_buffer (cpp_reader *, const unsigned char *, - size_t, int, int); + size_t, int); extern int cpp_defined (cpp_reader *, const unsigned char *, int); /* A preprocessing number. Code assumes that any unused high bits of |