41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const RuntimeGlobals = require("../RuntimeGlobals");
|
||
|
|
const Template = require("../Template");
|
||
|
|
const HelperRuntimeModule = require("./HelperRuntimeModule");
|
||
|
|
|
||
|
|
/** @typedef {import("../Compilation")} Compilation */
|
||
|
|
|
||
|
|
class CompatGetDefaultExportRuntimeModule extends HelperRuntimeModule {
|
||
|
|
constructor() {
|
||
|
|
super("compat get default export");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @returns {string | null} runtime code
|
||
|
|
*/
|
||
|
|
generate() {
|
||
|
|
const compilation = /** @type {Compilation} */ (this.compilation);
|
||
|
|
const { runtimeTemplate } = compilation;
|
||
|
|
const fn = RuntimeGlobals.compatGetDefaultExport;
|
||
|
|
return Template.asString([
|
||
|
|
"// getDefaultExport function for compatibility with non-harmony modules",
|
||
|
|
`${fn} = ${runtimeTemplate.basicFunction("module", [
|
||
|
|
"var getter = module && module.__esModule ?",
|
||
|
|
Template.indent([
|
||
|
|
`${runtimeTemplate.returningFunction("module['default']")} :`,
|
||
|
|
`${runtimeTemplate.returningFunction("module")};`
|
||
|
|
]),
|
||
|
|
`${RuntimeGlobals.definePropertyGetters}(getter, { a: getter });`,
|
||
|
|
"return getter;"
|
||
|
|
])};`
|
||
|
|
]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = CompatGetDefaultExportRuntimeModule;
|