51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
import { reservedWords } from "../util/identifier";
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import { getOptions } from "../options";
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import Tokenizer from "../tokenizer";
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// Registered plugins
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export const plugins = {};
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export default class Parser extends Tokenizer {
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constructor(options, input) {
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options = getOptions(options);
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super(options, input);
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this.options = options;
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this.isReservedWord = reservedWords[6];
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this.input = input;
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this.loadPlugins(this.options.plugins);
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// Figure out if it's a module code.
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this.inModule = this.options.sourceType === "module";
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// If enabled, skip leading hashbang line.
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if (this.state.pos === 0 && this.input[0] === "#" && this.input[1] === "!") {
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this.skipLineComment(2);
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}
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}
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hasFeature(name) {
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return !!this.options.features[name];
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}
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extend(name, f) {
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this[name] = f(this[name]);
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}
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loadPlugins(plugins) {
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for (let name in plugins) {
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let plugin = exports.plugins[name];
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if (!plugin) throw new Error(`Plugin '${name}' not found`);
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plugin(this, plugins[name]);
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}
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}
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parse() {
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let file = this.startNode();
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let program = this.startNode();
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this.nextToken();
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return this.parseTopLevel(file, program);
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}
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}
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