init

马宇豪

2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
 
"use strict";
 
/** @typedef {import("../../declarations/WebpackOptions").ChunkLoadingType} ChunkLoadingType */
/** @typedef {import("../Compiler")} Compiler */
 
/** @type {WeakMap<Compiler, Set<ChunkLoadingType>>} */
const enabledTypes = new WeakMap();
 
/**
 * @param {Compiler} compiler compiler
 * @returns {Set<ChunkLoadingType>} enabled types
 */
const getEnabledTypes = compiler => {
    let set = enabledTypes.get(compiler);
    if (set === undefined) {
        set = new Set();
        enabledTypes.set(compiler, set);
    }
    return set;
};
 
class EnableChunkLoadingPlugin {
    /**
     * @param {ChunkLoadingType} type library type that should be available
     */
    constructor(type) {
        this.type = type;
    }
 
    /**
     * @param {Compiler} compiler the compiler instance
     * @param {ChunkLoadingType} type type of library
     * @returns {void}
     */
    static setEnabled(compiler, type) {
        getEnabledTypes(compiler).add(type);
    }
 
    /**
     * @param {Compiler} compiler the compiler instance
     * @param {ChunkLoadingType} type type of library
     * @returns {void}
     */
    static checkEnabled(compiler, type) {
        if (!getEnabledTypes(compiler).has(type)) {
            throw new Error(
                `Chunk loading type "${type}" is not enabled. ` +
                    "EnableChunkLoadingPlugin need to be used to enable this type of chunk loading. " +
                    'This usually happens through the "output.enabledChunkLoadingTypes" option. ' +
                    'If you are using a function as entry which sets "chunkLoading", you need to add all potential chunk loading types to "output.enabledChunkLoadingTypes". ' +
                    "These types are enabled: " +
                    Array.from(getEnabledTypes(compiler)).join(", ")
            );
        }
    }
 
    /**
     * Apply the plugin
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        const { type } = this;
 
        // Only enable once
        const enabled = getEnabledTypes(compiler);
        if (enabled.has(type)) return;
        enabled.add(type);
 
        if (typeof type === "string") {
            switch (type) {
                case "jsonp": {
                    const JsonpChunkLoadingPlugin = require("../web/JsonpChunkLoadingPlugin");
                    new JsonpChunkLoadingPlugin().apply(compiler);
                    break;
                }
                case "import-scripts": {
                    const ImportScriptsChunkLoadingPlugin = require("../webworker/ImportScriptsChunkLoadingPlugin");
                    new ImportScriptsChunkLoadingPlugin().apply(compiler);
                    break;
                }
                case "require": {
                    //@ts-expect-error https://github.com/microsoft/TypeScript/issues/41697
                    const CommonJsChunkLoadingPlugin = require("../node/CommonJsChunkLoadingPlugin");
                    new CommonJsChunkLoadingPlugin({
                        asyncChunkLoading: false
                    }).apply(compiler);
                    break;
                }
                case "async-node": {
                    //@ts-expect-error https://github.com/microsoft/TypeScript/issues/41697
                    const CommonJsChunkLoadingPlugin = require("../node/CommonJsChunkLoadingPlugin");
                    new CommonJsChunkLoadingPlugin({
                        asyncChunkLoading: true
                    }).apply(compiler);
                    break;
                }
                case "import": {
                    const ModuleChunkLoadingPlugin = require("../esm/ModuleChunkLoadingPlugin");
                    new ModuleChunkLoadingPlugin().apply(compiler);
                    break;
                }
                case "universal":
                    // TODO implement universal chunk loading
                    throw new Error("Universal Chunk Loading is not implemented yet");
                default:
                    throw new Error(`Unsupported chunk loading type ${type}.
Plugins which provide custom chunk loading types must call EnableChunkLoadingPlugin.setEnabled(compiler, type) to disable this error.`);
            }
        } else {
            // TODO support plugin instances here
            // apply them to the compiler
        }
    }
}
 
module.exports = EnableChunkLoadingPlugin;