71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
#include "./language.h"
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#include "./subtree.h"
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#include "./error_costs.h"
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#include <string.h>
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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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if (symbol == ts_builtin_sym_error || symbol == ts_builtin_sym_error_repeat) {
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result->action_count = 0;
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result->is_reusable = false;
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result->actions = NULL;
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} else {
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assert(symbol < self->token_count);
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uint32_t action_index = self->parse_table[state * self->symbol_count + symbol];
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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->actions = (const TSParseAction *)(entry + 1);
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}
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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, TSSymbol symbol) {
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if (symbol == ts_builtin_sym_error) {
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return (TSSymbolMetadata){.visible = true, .named = true};
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} else if (symbol == ts_builtin_sym_error_repeat) {
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return (TSSymbolMetadata){.visible = false, .named = false};
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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 if (symbol == ts_builtin_sym_error_repeat) {
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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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TSSymbol ts_language_symbol_for_name(const TSLanguage *self, const char *name) {
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if (!strcmp(name, "ERROR")) return ts_builtin_sym_error;
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uint32_t count = ts_language_symbol_count(self);
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for (TSSymbol i = 0; i < count; i++) {
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if (!strcmp(self->symbol_names[i], name)) {
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return i;
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}
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}
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return 0;
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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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