gcclibs/libcpp/line-map.c

25 #include "line-map.h"
29 /* Initialize a line map set.  */
51   struct line_map *map;
54   for (map = &set->maps[set->used - 1]; ! MAIN_FILE_P (map);
55        map = INCLUDED_FROM (set, map))
56     fprintf (stderr, "line-map.c: file \"%s\" entered but not left\n",
57 	     map->to_file);
60 /* Free a line map set.  */
91   struct line_map *map;
103   map = &set->maps[set->used];
117       if (MAIN_FILE_P (map - 1))
126           from = map - 1;
130 	  from = INCLUDED_FROM (set, map - 1);
137 	fprintf (stderr, "line-map.c: file \"%s\" left but not entered\n",
149   map->reason = reason;
150   map->sysp = sysp;
151   map->start_location = start_location;
152   map->to_file = to_file;
153   map->to_line = to_line;
155   map->column_bits = 0;
162       map->included_from = set->depth == 0 ? -1 : (int) (set->used - 2);
165 	trace_include (set, map);
168     map->included_from = map[-1].included_from;
172       map->included_from = INCLUDED_FROM (set, map - 1)->included_from;
175   return map;
182   struct line_map *map = &set->maps[set->used - 1];
185   unsigned int last_line = SOURCE_LINE (map, set->highest_line);
189       || (line_delta > 10 && line_delta * map->column_bits > 1000)
190       || (max_column_hint >= (1U << map->column_bits))
191       || (max_column_hint <= 80 && map->column_bits >= 10))
216       /* Allocate the new line_map.  However, if the current map only has a
219 	  || last_line != map->to_line
220 	  || SOURCE_COLUMN (map, highest) >= (1U << column_bits))
221 	map = (struct line_map*) linemap_add (set, LC_RENAME, map->sysp,
222 				      map->to_file, to_line);
223       map->column_bits = column_bits;
224       r = map->start_location + ((to_line - map->to_line) << column_bits);
227     r = highest - SOURCE_COLUMN (map, highest)
228       + (line_delta << map->column_bits);
249 	  struct line_map *map = &set->maps[set->used - 1];
250 	  r = linemap_line_start (set, SOURCE_LINE (map, r), to_column + 50);
259 /* Given a logical line, returns the map from which the corresponding
300    which led to the map MAP, if any, to stderr.  Nothing is output if
305 				const struct line_map *map)
307   if (MAIN_FILE_P (map) || set->last_listed == map->included_from)
310   set->last_listed = map->included_from;
311   map = INCLUDED_FROM (set, map);
314 	   map->to_file, LAST_SOURCE_LINE (map));
316   while (! MAIN_FILE_P (map))
318       map = INCLUDED_FROM (set, map);
332 	       map->to_file, LAST_SOURCE_LINE (map));
341 trace_include (const struct line_maps *set, const struct line_map *map)
347   fprintf (stderr, " %s\n", map->to_file);