mirror of https://github.com/webpack/webpack.git
40 lines
1.1 KiB
JavaScript
40 lines
1.1 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 MakeNamespaceObjectRuntimeModule extends HelperRuntimeModule {
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constructor() {
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super("make namespace object");
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}
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/**
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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.makeNamespaceObject;
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return Template.asString([
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"// define __esModule on exports",
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`${fn} = ${runtimeTemplate.basicFunction("exports", [
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"if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {",
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Template.indent([
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"Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });"
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]),
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"}",
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"Object.defineProperty(exports, '__esModule', { value: true });"
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])};`
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]);
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}
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}
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module.exports = MakeNamespaceObjectRuntimeModule;
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