Alex Hochheiden
d0470670a1
`third_party/node/node_modules` is generated by `./mach vendor node`. Differential Revision: https://phabricator.services.mozilla.com/D320322
39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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*/
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"use strict";
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const RuntimeGlobals = require("../RuntimeGlobals");
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const Template = require("../Template");
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const HelperRuntimeModule = require("./HelperRuntimeModule");
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/** @typedef {import("../Compilation")} Compilation */
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class SetAnonymousDefaultNameRuntimeModule extends HelperRuntimeModule {
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constructor() {
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super("set anonymous default export name");
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}
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/**
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* Generates runtime code for this runtime module.
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* @returns {string | null} runtime code
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*/
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generate() {
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const compilation = /** @type {Compilation} */ (this.compilation);
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const { runtimeTemplate } = compilation;
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const fn = RuntimeGlobals.setAnonymousDefaultName;
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return Template.asString([
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"// set .name for anonymous default exports per ES spec",
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"// skipped when the property is non-configurable (pre-ES2015 engines),",
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"// where Object.defineProperty would throw",
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`${fn} = ${runtimeTemplate.basicFunction("x", [
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'var descriptor = Object.getOwnPropertyDescriptor(x, "name");',
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'if (!descriptor || (!descriptor.writable && descriptor.configurable)) Object.defineProperty(x, "name", { value: "default", configurable: true });'
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])};`
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]);
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}
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}
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module.exports = SetAnonymousDefaultNameRuntimeModule;
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