22c550c9d6
* Use GLR stack-splitting to try all numbers of tokens to discard until a repair is found. * Check the validity of repairs by looking at the child trees, rather than the statically-computed 'in-progress symbols' list
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
#include "tree_sitter/parser.h"
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#include "runtime/language.h"
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#include "runtime/tree.h"
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const TSParseAction *ts_language_actions(const TSLanguage *self, TSStateId state,
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TSSymbol symbol, size_t *count) {
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if (state == ts_parse_state_error) {
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*count = 1;
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return &self->recovery_actions[symbol];
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}
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size_t action_index = 0;
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if (symbol != ts_builtin_sym_error)
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action_index = self->parse_table[state * self->symbol_count + symbol];
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*count = self->parse_actions[action_index].count;
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const TSParseActionEntry *entry = self->parse_actions + action_index + 1;
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return (const TSParseAction *)entry;
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}
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TSParseAction ts_language_last_action(const TSLanguage *self, TSStateId state,
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TSSymbol sym) {
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size_t count;
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const TSParseAction *actions = ts_language_actions(self, state, sym, &count);
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return actions[count - 1];
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}
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bool ts_language_has_action(const TSLanguage *self, TSStateId state,
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TSSymbol symbol) {
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TSParseAction action = ts_language_last_action(self, state, symbol);
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return action.type != TSParseActionTypeError;
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}
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size_t ts_language_symbol_count(const TSLanguage *language) {
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return language->symbol_count;
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}
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TSSymbolMetadata ts_language_symbol_metadata(const TSLanguage *language,
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TSSymbol symbol) {
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if (symbol == ts_builtin_sym_error)
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return (TSSymbolMetadata){
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.visible = true, .named = true, .extra = false, .structural = true,
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};
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else
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return language->symbol_metadata[symbol];
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}
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const char *ts_language_symbol_name(const TSLanguage *language, TSSymbol symbol) {
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if (symbol == ts_builtin_sym_error)
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return "ERROR";
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else
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return language->symbol_names[symbol];
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}
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