@@ -249,6 +249,32 @@ lookup_file_in_cache_tab (const char *file_path)
return r;
}
+/* Purge any mention of FILENAME from the cache of files used for
+ printing source code. For use in selftests when working
+ with tempfiles. */
+
+void
+diagnostics_file_cache_forcibly_evict_file (const char *file_path)
+{
+ gcc_assert (file_path);
+
+ fcache *r = lookup_file_in_cache_tab (file_path);
+ if (!r)
+ /* Not found. */
+ return;
+
+ r->file_path = NULL;
+ if (r->fp)
+ fclose (r->fp);
+ r->fp = NULL;
+ r->nb_read = 0;
+ r->line_start_idx = 0;
+ r->line_num = 0;
+ r->line_record.truncate (0);
+ r->use_count = 0;
+ r->total_lines = 0;
+}
+
/* Return the file cache that has been less used, recently, or the
first empty one. If HIGHEST_USE_COUNT is non-null,
*HIGHEST_USE_COUNT is set to the highest use count of the entries
@@ -95,6 +95,8 @@ void dump_location_info (FILE *stream);
void diagnostics_file_cache_fini (void);
+void diagnostics_file_cache_forcibly_evict_file (const char *file_path);
+
struct GTY(()) string_concat
{
string_concat (int num, location_t *locs);
@@ -111,6 +111,7 @@ selftest::temp_source_file::temp_source_file (const location &loc,
selftest::temp_source_file::~temp_source_file ()
{
unlink (m_filename);
+ diagnostics_file_cache_forcibly_evict_file (m_filename);
free (m_filename);
}