70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
#include "runtime/language.h"
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#include "runtime/tree.h"
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#include "runtime/error_costs.h"
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static const TSParseAction SHIFT_ERROR = {
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.type = TSParseActionTypeShift,
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.params.state = ERROR_STATE,
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};
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void ts_language_table_entry(const TSLanguage *self, TSStateId state,
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TSSymbol symbol, TableEntry *result) {
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uint32_t action_index;
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if (symbol == ts_builtin_sym_error) {
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if (state == ERROR_STATE) {
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result->action_count = 1;
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result->is_reusable = false;
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result->depends_on_lookahead = false;
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result->actions = &SHIFT_ERROR;
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return;
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}
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action_index = 0;
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} else {
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assert(symbol < self->token_count);
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action_index = self->parse_table[state * self->symbol_count + symbol];
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}
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const TSParseActionEntry *entry = &self->parse_actions[action_index];
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result->action_count = entry->count;
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result->is_reusable = entry->reusable;
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result->depends_on_lookahead = entry->depends_on_lookahead;
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result->actions = (const TSParseAction *)(entry + 1);
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}
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uint32_t ts_language_symbol_count(const TSLanguage *language) {
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return language->symbol_count + language->alias_count;
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}
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uint32_t ts_language_version(const TSLanguage *language) {
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return language->version;
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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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}
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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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}
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TSSymbolType ts_language_symbol_type(const TSLanguage *language, TSSymbol symbol) {
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TSSymbolMetadata metadata = ts_language_symbol_metadata(language, symbol);
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if (metadata.named) {
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return TSSymbolTypeRegular;
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} else if (metadata.visible) {
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return TSSymbolTypeAnonymous;
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} else {
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return TSSymbolTypeAuxiliary;
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}
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}
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