70 lines
2.7 KiB
JavaScript
70 lines
2.7 KiB
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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*
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* @format
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*/
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'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = BabelPluginSyntaxHermesParser;
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var HermesParser = _interopRequireWildcard(require("hermes-parser"));
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function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
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function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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function BabelPluginSyntaxHermesParser( // $FlowExpectedError[unclear-type] We don't have types for this.
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api, options) {
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api.assertVersion('^7.0.0 || ^8.0.0-alpha.6');
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const {
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parseLangTypes = 'all'
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} = options;
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let curParserOpts = {};
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let curFilename = null;
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return {
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name: 'syntax-hermes-parser',
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manipulateOptions(opts) {
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curParserOpts = opts.parserOpts;
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curFilename = opts.filename;
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},
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// API suggested via https://babeljs.io/docs/babel-parser#will-the-babel-parser-support-a-plugin-system
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parserOverride(code) {
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const filename = curFilename;
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if (filename != null && (filename.endsWith('.ts') || filename.endsWith('.tsx'))) {
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return;
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}
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const parserOpts = {};
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for (const [key, value] of Object.entries(curParserOpts)) {
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if (HermesParser.ParserOptionsKeys.has(key)) {
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// $FlowExpectedError[incompatible-type]
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parserOpts[key] = value;
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}
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}
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if (parseLangTypes === 'flow' && !/@flow/.test(code)) {
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return;
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}
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return HermesParser.parse(code, { ...parserOpts,
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babel: true
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});
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},
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pre() {
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curParserOpts = {};
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}
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};
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} |