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概要 編集
- gcc-4.1.0/gcc/c-opts.cにて定義
- C言語であればlang_hooksのparse_file変数(関数ポインタ)に代入される
- つまりcompile_fileの途中で呼ばれる関数
引数 編集
- int set_yydebug
実装 編集
1118 /* Initialize the integrated preprocessor after debug output has been
1119 initialized; loop over each input file. */
1120 void
1121 c_common_parse_file (int set_yydebug)
1122 {
1123 unsigned int i;
1124
1125 /* Enable parser debugging, if requested and we can. If requested
1126 and we can't, notify the user. */
1127 #if YYDEBUG != 0
1128 yydebug = set_yydebug;
1129 #else
1130 if (set_yydebug)
1131 warning (0, "YYDEBUG was not defined at build time, -dy ignored");
1132 #endif
1133
1134 i = 0;
1135 for (;;)
1136 {
1137 /* Start the main input file, if the debug writer wants it. */
1138 if (debug_hooks->start_end_main_source_file)
1139 (*debug_hooks->start_source_file) (0, this_input_filename);
1140 finish_options ();
1141 pch_init ();
1142 push_file_scope ();
1143 c_parse_file ();
1144 finish_file ();
1145 pop_file_scope ();
1146 /* And end the main input file, if the debug writer wants it */
1147 if (debug_hooks->start_end_main_source_file)
1148 (*debug_hooks->end_source_file) (0);
1149 if (++i >= num_in_fnames)
1150 break;
1151 cpp_undef_all (parse_in);
1152 this_input_filename
1153 = cpp_read_main_file (parse_in, in_fnames[i]);
1154 /* If an input file is missing, abandon further compilation.
1155 cpplib has issued a diagnostic. */
1156 if (!this_input_filename)
1157 break;
1158 }
1159 }
