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Make parse and lex debug output more readable

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This commit is contained in:
Max Brunsfeld 2014-08-27 18:27:53 -07:00
parent 7b0a52ec26
commit e0a53b9f14
2 changed files with 11 additions and 9 deletions
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14
src/runtime/parser.c
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@ -6,6 +6,12 @@
#include "runtime/stack.h"
#include "runtime/parser.h"
#define DEBUG_PARSE(...) \
if (parser->debug) { \
fprintf(stderr, "PARSE " __VA_ARGS__); \
fprintf(stderr, "\n"); \
}
static const TSParseAction *actions_for_state(const TSLanguage *language,
TSStateId state) {
return language->parse_table + (state * language->symbol_count);
@ -144,6 +150,7 @@ static int handle_error(TSParser *parser) {
parser->language, state_after_error)[parser->lookahead->symbol];
if (action_after_error.type != TSParseActionTypeError) {
DEBUG_PARSE("RECOVER %u", state_after_error);
ts_stack_shrink(&parser->stack, i + 1);
ts_stack_push(&parser->stack, state_after_error, error);
ts_tree_release(error);
@ -200,12 +207,6 @@ void ts_parser_destroy(TSParser *parser) {
ts_stack_delete(&parser->stack);
}
#define DEBUG_PARSE(...) \
if (parser->debug) { \
fprintf(stderr, __VA_ARGS__); \
fprintf(stderr, "\n"); \
}
const TSTree *ts_parser_parse(TSParser *parser, TSInput input,
TSInputEdit *edit) {
if (!edit)
@ -252,6 +253,7 @@ const TSTree *ts_parser_parse(TSParser *parser, TSInput input,
return get_root(parser);
case TSParseActionTypeError:
DEBUG_PARSE("ERROR");
if (!handle_error(parser))
return get_root(parser);
break;