diff options
Diffstat (limited to 'libcpp/include/line-map.h')
| -rw-r--r-- | libcpp/include/line-map.h | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/libcpp/include/line-map.h b/libcpp/include/line-map.h index 44008be..50b2e4f 100644 --- a/libcpp/include/line-map.h +++ b/libcpp/include/line-map.h @@ -72,6 +72,7 @@ enum lc_reason LC_RENAME, /* Other reason for name change. */ LC_RENAME_VERBATIM, /* Likewise, but "" != stdin. */ LC_ENTER_MACRO, /* Begin macro expansion. */ + LC_MODULE, /* A (C++) Module. */ /* FIXME: add support for stringize and paste. */ LC_HWM /* High Water Mark. */ }; @@ -439,7 +440,8 @@ struct GTY((tag ("1"))) line_map_ordinary : public line_map { /* Location from whence this line map was included. For regular #includes, this location will be the last location of a map. For - outermost file, this is 0. */ + outermost file, this is 0. For modules it could be anywhere + within a map. */ location_t included_from; /* Size is 20 or 24 bytes, no padding */ @@ -662,6 +664,15 @@ ORDINARY_MAP_IN_SYSTEM_HEADER_P (const line_map_ordinary *ord_map) return ord_map->sysp; } +/* TRUE if this line map is for a module (not a source file). */ + +inline bool +MAP_MODULE_P (const line_map *map) +{ + return (MAP_ORDINARY_P (map) + && linemap_check_ordinary (map)->reason == LC_MODULE); +} + /* Get the filename of ordinary map MAP. */ inline const char * @@ -1076,6 +1087,9 @@ extern void linemap_check_files_exited (class line_maps *); extern location_t linemap_line_start (class line_maps *set, linenum_type to_line, unsigned int max_column_hint); +/* Allocate a raw block of line maps, zero initialized. */ +extern line_map *line_map_new_raw (line_maps *, bool, unsigned); + /* Add a mapping of logical source line to physical source file and line number. This function creates an "ordinary map", which is a map that records locations of tokens that are not part of macro @@ -1093,6 +1107,39 @@ extern const line_map *linemap_add (class line_maps *, enum lc_reason, unsigned int sysp, const char *to_file, linenum_type to_line); +/* Create a macro map. A macro map encodes source locations of tokens + that are part of a macro replacement-list, at a macro expansion + point. See the extensive comments of struct line_map and struct + line_map_macro, in line-map.h. + + This map shall be created when the macro is expanded. The map + encodes the source location of the expansion point of the macro as + well as the "original" source location of each token that is part + of the macro replacement-list. If a macro is defined but never + expanded, it has no macro map. SET is the set of maps the macro + map should be part of. MACRO_NODE is the macro which the new macro + map should encode source locations for. EXPANSION is the location + of the expansion point of MACRO. For function-like macros + invocations, it's best to make it point to the closing parenthesis + of the macro, rather than the the location of the first character + of the macro. NUM_TOKENS is the number of tokens that are part of + the replacement-list of MACRO. */ +const line_map_macro *linemap_enter_macro (line_maps *, cpp_hashnode *, + location_t, unsigned int); + +/* Create a source location for a module. The creator must either do + this after the TU is tokenized, or deal with saving and restoring + map state. */ + +extern location_t linemap_module_loc + (line_maps *, location_t from, const char *name); +extern void linemap_module_reparent + (line_maps *, location_t loc, location_t new_parent); + +/* Restore the linemap state such that the map at LWM-1 continues. */ +extern void linemap_module_restore + (line_maps *, unsigned lwm); + /* Given a logical source location, returns the map which the corresponding (source file, line, column) triplet can be deduced from. Since the set is built chronologically, the logical lines are @@ -1102,6 +1149,8 @@ extern const line_map *linemap_add extern const line_map *linemap_lookup (const line_maps *, location_t); +unsigned linemap_lookup_macro_index (const line_maps *, location_t); + /* Returns TRUE if the line table set tracks token locations across macro expansion, FALSE otherwise. */ bool linemap_tracks_macro_expansion_locs_p (class line_maps *); |