You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.2 KiB
43 lines
1.2 KiB
4 weeks ago
|
/*
|
||
|
|
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 DefinePropertyGettersRuntimeModule extends HelperRuntimeModule {
|
||
|
|
constructor() {
|
||
|
|
super("define property getters");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @returns {string | null} runtime code
|
||
|
|
*/
|
||
|
|
generate() {
|
||
|
|
const compilation = /** @type {Compilation} */ (this.compilation);
|
||
|
|
const { runtimeTemplate } = compilation;
|
||
|
|
const fn = RuntimeGlobals.definePropertyGetters;
|
||
|
|
return Template.asString([
|
||
|
|
"// define getter functions for harmony exports",
|
||
|
|
`${fn} = ${runtimeTemplate.basicFunction("exports, definition", [
|
||
|
|
"for(var key in definition) {",
|
||
|
|
Template.indent([
|
||
|
|
`if(${RuntimeGlobals.hasOwnProperty}(definition, key) && !${RuntimeGlobals.hasOwnProperty}(exports, key)) {`,
|
||
|
|
Template.indent([
|
||
|
|
"Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });"
|
||
|
|
]),
|
||
|
|
"}"
|
||
|
|
]),
|
||
|
|
"}"
|
||
|
|
])};`
|
||
|
|
]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = DefinePropertyGettersRuntimeModule;
|