traxys/tree-sitter
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix debugging macros in parser.h

Browse source
This commit is contained in:
Max Brunsfeld 2014-04-14 20:30:03 -07:00
parent 67243c7e2f
commit e23604ac52
1 changed files with 14 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

21
include/tree_sitter/parser.h
View file

@ -13,19 +13,19 @@ extern "C" {
//#define TS_DEBUG_LEX
#ifdef TS_DEBUG_LEX
#define DEBUG_LEX(...) fprintf(stderr, __VA_ARGS__)
#define DEBUG_LEX(...) fprintf(stderr, "\n" __VA_ARGS__)
#else
#define DEBUG_LEX(...)
#endif
#ifdef TS_DEBUG_PARSE
#define DEBUG_PARSE(...) fprintf(stderr, __VA_ARGS__)
#define DEBUG_PARSE(...) fprintf(stderr, "\n" __VA_ARGS__)
#else
#define DEBUG_PARSE(...)
#endif
#define SYMBOL_NAMES \
static const char *ts_symbol_names[SYMBOL_COUNT]
static const char *ts_symbol_names[]
#define HIDDEN_SYMBOLS \
static const int hidden_symbol_flags[SYMBOL_COUNT]
@ -39,22 +39,23 @@ static ts_tree * ts_lex(ts_lexer *lexer, state_id lex_state)
#define START_LEXER() \
char lookahead; \
next_state: \
lookahead = ts_lexer_lookahead_char(lexer);
lookahead = ts_lexer_lookahead_char(lexer); \
DEBUG_LEX("CHAR '%c'", lookahead);
#define START_TOKEN() \
ts_lexer_start_token(lexer);
#define ADVANCE(state_index) \
{ ts_lexer_advance(lexer); lex_state = state_index; goto next_state; }
{ DEBUG_LEX("ADVANCE %d", state_index); ts_lexer_advance(lexer); lex_state = state_index; goto next_state; }
#define ACCEPT_TOKEN(symbol) \
{ DEBUG_LEX("token: %s \n", ts_symbol_names[symbol]); return ts_lexer_build_node(lexer, symbol); }
{ DEBUG_LEX("TOKEN %s", ts_symbol_names[symbol]); return ts_lexer_build_node(lexer, symbol); }
#define LEX_ERROR() \
{ return ts_lexer_build_node(lexer, ts_builtin_sym_error); }
#define LEX_PANIC() \
{ DEBUG_LEX("Lex error: unexpected state %d", LEX_STATE()); return NULL; }
{ DEBUG_LEX("\nLex error: unexpected state %d", lex_state); return NULL; }
#define PARSE_TABLE \
static const ts_parse_action ts_parse_actions[STATE_COUNT][SYMBOL_COUNT]
@ -192,6 +193,7 @@ typedef struct {
* The file including this header should use these macros to provide definitions.
*/
LEX_FN();
SYMBOL_NAMES;
/*
@ -342,17 +344,22 @@ static const ts_tree * ts_parse(void *data, ts_input input, ts_input_edit *edit)
if (!parser->lookahead)
parser->lookahead = ts_lex(&parser->lexer, parser->lex_states[state]);
ts_parse_action action = ts_lr_parser_table_actions(parser, state)[ts_tree_symbol(parser->lookahead)];
DEBUG_PARSE("LOOKAHEAD %s", ts_symbol_names[ts_tree_symbol(parser->lookahead)]);
switch (action.type) {
case ts_parse_action_type_shift:
DEBUG_PARSE("SHIFT %d", action.data.to_state);
ts_lr_parser_shift(parser, action.data.to_state);
break;
case ts_parse_action_type_reduce:
DEBUG_PARSE("REDUCE %s %d", ts_symbol_names[action.data.symbol], action.data.child_count);
ts_lr_parser_reduce(parser, action.data.symbol, action.data.child_count);
break;
case ts_parse_action_type_accept:
DEBUG_PARSE("ACCEPT");
done = 1;
break;
case ts_parse_action_type_error:
DEBUG_PARSE("ERROR");
done = !ts_lr_parser_handle_error(parser);
break;
}