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Starting work on Scala-style left-recursion caching.

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This commit is contained in:
Meredith L. Patterson 2012-05-12 21:26:15 +01:00
parent 60fd846b2f
commit e748b9c4cb
3 changed files with 18 additions and 29 deletions
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17
src/internal.h
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@ -11,6 +11,23 @@ typedef struct parser_cache_key {
const parser_t *parser;
} parser_cache_key_t;
typedef enum parser_cache_value_type {
PC_BASE,
PC_IN_RECURSION,
PC_LRESULT,
PC_RESULT
} parser_cache_value_type_t;
typedef struct parser_cache_value {
parser_cache_value_type_t value_type;
union {
int base;
parse_result_t *in_recursion;
parse_result_t *lresult;
parse_result_t *result;
};
} parser_cache_value_t;
typedef unsigned int *charset;
static inline charset new_charset() {