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Maieul BOYER 2024-04-30 15:57:07 +02:00
parent 5bec1546aa
commit c7fb66c70d
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15 changed files with 572 additions and 164 deletions
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29
parser/src/language.h
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@ -1,7 +1,6 @@
#ifndef TREE_SITTER_LANGUAGE_H_
#define TREE_SITTER_LANGUAGE_H_
#include "./parser.h"
#include "./subtree.h"
#include "parser/types/types_parse_action_type.h"
#include "parser/types/types_state_id.h"
@ -12,14 +11,14 @@
#define LANGUAGE_VERSION_WITH_PRIMARY_STATES 14
#define LANGUAGE_VERSION_USABLE_VIA_WASM 13
typedef struct
typedef struct s_table_entry
{
const t_parse_actions *actions;
t_u32 action_count;
bool is_reusable;
} TableEntry;
} t_table_entry;
typedef struct
typedef struct s_lookahead_iterator
{
const t_language *language;
const t_u16 *data;
@ -34,17 +33,17 @@ typedef struct
t_symbol symbol;
t_state_id next_state;
t_u16 action_count;
} LookaheadIterator;
} t_lookahead_iterator;
void ts_language_table_entry(const t_language *, t_state_id, t_symbol,
TableEntry *);
t_table_entry *);
t_symbol_metadata ts_language_symbol_metadata(const t_language *, t_symbol);
t_symbol ts_language_public_symbol(const t_language *, t_symbol);
t_state_id ts_language_next_state(const t_language *self, t_state_id state,
t_symbol symbol);
t_symbol symbol);
static inline bool ts_language_is_symbol_external(const t_language *self,
t_symbol symbol)
@ -54,10 +53,10 @@ static inline bool ts_language_is_symbol_external(const t_language *self,
static inline const t_parse_actions *ts_language_actions(const t_language *self,
t_state_id state,
t_symbol symbol,
t_u32 *count)
t_symbol symbol,
t_u32 *count)
{
TableEntry entry;
t_table_entry entry;
ts_language_table_entry(self, state, symbol, &entry);
*count = entry.action_count;
return entry.actions;
@ -67,7 +66,7 @@ static inline bool ts_language_has_reduce_action(const t_language *self,
t_state_id state,
t_symbol symbol)
{
TableEntry entry;
t_table_entry entry;
ts_language_table_entry(self, state, symbol, &entry);
return entry.action_count > 0 && entry.actions[0].type == ActionTypeReduce;
}
@ -118,8 +117,8 @@ static inline bool ts_language_has_actions(const t_language *self,
// all possible symbols and checking the parse table for each one.
// For 'small' parse states, this exploits the structure of the
// table to only visit the valid symbols.
static inline LookaheadIterator ts_language_lookaheads(const t_language *self,
t_state_id state)
static inline t_lookahead_iterator ts_language_lookaheads(
const t_language *self, t_state_id state)
{
bool is_small_state = state >= self->large_state_count;
const t_u16 *data;
@ -137,7 +136,7 @@ static inline LookaheadIterator ts_language_lookaheads(const t_language *self,
{
data = &self->parse_table[state * self->symbol_count] - 1;
}
return (LookaheadIterator){
return (t_lookahead_iterator){
.language = self,
.data = data,
.group_end = group_end,
@ -148,7 +147,7 @@ static inline LookaheadIterator ts_language_lookaheads(const t_language *self,
};
}
static inline bool ts_lookahead_iterator__next(LookaheadIterator *self)
static inline bool ts_lookahead_iterator__next(t_lookahead_iterator *self)
{
// For small parse states, valid symbols are listed explicitly,
// grouped by their value. There's no need to look up the actions