init

马宇豪

2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
*/
 
"use strict";
 
const RuntimeGlobals = require("../RuntimeGlobals");
const RuntimeModule = require("../RuntimeModule");
 
/** @typedef {import("../MainTemplate")} MainTemplate */
 
class StartupEntrypointRuntimeModule extends RuntimeModule {
    /**
     * @param {boolean} asyncChunkLoading use async chunk loading
     */
    constructor(asyncChunkLoading) {
        super("startup entrypoint");
        this.asyncChunkLoading = asyncChunkLoading;
    }
 
    /**
     * @returns {string} runtime code
     */
    generate() {
        const { compilation } = this;
        const { runtimeTemplate } = compilation;
        return `${
            RuntimeGlobals.startupEntrypoint
        } = ${runtimeTemplate.basicFunction("result, chunkIds, fn", [
            "// arguments: chunkIds, moduleId are deprecated",
            "var moduleId = chunkIds;",
            `if(!fn) chunkIds = result, fn = ${runtimeTemplate.returningFunction(
                `${RuntimeGlobals.require}(${RuntimeGlobals.entryModuleId} = moduleId)`
            )};`,
            ...(this.asyncChunkLoading
                ? [
                        `return Promise.all(chunkIds.map(${RuntimeGlobals.ensureChunk}, ${
                            RuntimeGlobals.require
                        })).then(${runtimeTemplate.basicFunction("", [
                            "var r = fn();",
                            "return r === undefined ? result : r;"
                        ])})`
                  ]
                : [
                        `chunkIds.map(${RuntimeGlobals.ensureChunk}, ${RuntimeGlobals.require})`,
                        "var r = fn();",
                        "return r === undefined ? result : r;"
                  ])
        ])}`;
    }
}
 
module.exports = StartupEntrypointRuntimeModule;