98 lines
1.9 KiB
C
98 lines
1.9 KiB
C
#ifndef tree_sitter_runtime_h
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#define tree_sitter_runtime_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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#pragma mark - Tree
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typedef struct {
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} TSTree;
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TSTree TSTreeMake();
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#pragma mark - Parser
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typedef size_t TSSymbol;
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typedef int TSState;
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typedef struct {
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TSTree tree;
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const char *input;
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size_t position;
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TSState *state_stack;
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TSSymbol *symbol_stack;
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size_t state_count;
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size_t symbol_count;
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} TSParser;
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TSParser TSParserMake(const char *input);
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void TSParserShift(TSParser *parser, TSState state);
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void TSParserReduce(TSParser *parser, TSSymbol symbol, int child_count);
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void TSParserError(TSParser *parser);
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TSState TSParserParseState(const TSParser *parser);
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TSState TSParserLexState(const TSParser *parser);
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TSSymbol TSParserLookahead(const TSParser *parser);
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void TSParserSetLexState(const TSParser *parser, TSState state);
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#pragma mark - DSL
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#define START_PARSER() \
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TSParser parser = TSParserMake(input); \
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start: \
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ts_lex(&parser);
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#define START_LEXER() \
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start:
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#define LOOKAHEAD_SYM() \
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TSParserLookahead(&parser)
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#define LOOKAHEAD_CHAR() \
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'a'
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#define PARSE_STATE() \
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TSParserParseState(&parser)
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#define LEX_STATE() \
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TSParserLexState(parser)
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#define SHIFT(number) \
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{ TSParserShift(&parser, number); break; }
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#define SET_LEX_STATE(state_index) \
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{ TSParserSetLexState(&parser, state_index); }
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#define ADVANCE(state_index) \
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{ break; }
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#define ACCEPT_INPUT() \
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{ goto done; }
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#define ACCEPT_TOKEN(symbol) \
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{ goto done; }
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#define REDUCE(symbol, child_count) \
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{ TSParserReduce(&parser, symbol, child_count); break; }
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#define PARSE_ERROR() \
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TSParserError(&parser)
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#define LEX_ERROR() \
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TSParserError(parser)
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#define FINISH_PARSER() \
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done: \
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return parser.tree;
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#define FINISH_LEXER() \
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done:
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#endif
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#ifdef __cplusplus
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}
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#endif
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