source: imaps-frontend/node_modules/webpack/lib/library/AmdLibraryPlugin.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const { ConcatSource } = require("webpack-sources");
const ExternalModule = require("../ExternalModule");
const Template = require("../Template");
const AbstractLibraryPlugin = require("./AbstractLibraryPlugin");

/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
/** @typedef {import("../../declarations/WebpackOptions").LibraryType} LibraryType */
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../javascript/JavascriptModulesPlugin").RenderContext} RenderContext */
/** @typedef {import("../util/Hash")} Hash */
/** @template T @typedef {import("./AbstractLibraryPlugin").LibraryContext<T>} LibraryContext<T> */

/**
 * @typedef {object} AmdLibraryPluginOptions
 * @property {LibraryType} type
 * @property {boolean=} requireAsWrapper
 */

/**
 * @typedef {object} AmdLibraryPluginParsed
 * @property {string} name
 * @property {string} amdContainer
 */

/**
 * @typedef {AmdLibraryPluginParsed} T
 * @extends {AbstractLibraryPlugin<AmdLibraryPluginParsed>}
 */
class AmdLibraryPlugin extends AbstractLibraryPlugin {
        /**
         * @param {AmdLibraryPluginOptions} options the plugin options
         */
        constructor(options) {
                super({
                        pluginName: "AmdLibraryPlugin",
                        type: options.type
                });
                this.requireAsWrapper = options.requireAsWrapper;
        }

        /**
         * @param {LibraryOptions} library normalized library option
         * @returns {T | false} preprocess as needed by overriding
         */
        parseOptions(library) {
                const { name, amdContainer } = library;
                if (this.requireAsWrapper) {
                        if (name) {
                                throw new Error(
                                        `AMD library name must be unset. ${AbstractLibraryPlugin.COMMON_LIBRARY_NAME_MESSAGE}`
                                );
                        }
                } else if (name && typeof name !== "string") {
                        throw new Error(
                                `AMD library name must be a simple string or unset. ${AbstractLibraryPlugin.COMMON_LIBRARY_NAME_MESSAGE}`
                        );
                }
                const _name = /** @type {string} */ (name);
                const _amdContainer = /** @type {string} */ (amdContainer);
                return { name: _name, amdContainer: _amdContainer };
        }

        /**
         * @param {Source} source source
         * @param {RenderContext} renderContext render context
         * @param {LibraryContext<T>} libraryContext context
         * @returns {Source} source with library export
         */
        render(
                source,
                { chunkGraph, chunk, runtimeTemplate },
                { options, compilation }
        ) {
                const modern = runtimeTemplate.supportsArrowFunction();
                const modules = chunkGraph
                        .getChunkModules(chunk)
                        .filter(
                                m =>
                                        m instanceof ExternalModule &&
                                        (m.externalType === "amd" || m.externalType === "amd-require")
                        );
                const externals = /** @type {ExternalModule[]} */ (modules);
                const externalsDepsArray = JSON.stringify(
                        externals.map(m =>
                                typeof m.request === "object" && !Array.isArray(m.request)
                                        ? m.request.amd
                                        : m.request
                        )
                );
                const externalsArguments = externals
                        .map(
                                m =>
                                        `__WEBPACK_EXTERNAL_MODULE_${Template.toIdentifier(
                                                `${chunkGraph.getModuleId(m)}`
                                        )}__`
                        )
                        .join(", ");

                const iife = runtimeTemplate.isIIFE();
                const fnStart =
                        (modern
                                ? `(${externalsArguments}) => {`
                                : `function(${externalsArguments}) {`) +
                        (iife || !chunk.hasRuntime() ? " return " : "\n");
                const fnEnd = iife ? ";\n}" : "\n}";

                let amdContainerPrefix = "";
                if (options.amdContainer) {
                        amdContainerPrefix = `${options.amdContainer}.`;
                }

                if (this.requireAsWrapper) {
                        return new ConcatSource(
                                `${amdContainerPrefix}require(${externalsDepsArray}, ${fnStart}`,
                                source,
                                `${fnEnd});`
                        );
                } else if (options.name) {
                        const name = compilation.getPath(options.name, {
                                chunk
                        });

                        return new ConcatSource(
                                `${amdContainerPrefix}define(${JSON.stringify(
                                        name
                                )}, ${externalsDepsArray}, ${fnStart}`,
                                source,
                                `${fnEnd});`
                        );
                } else if (externalsArguments) {
                        return new ConcatSource(
                                `${amdContainerPrefix}define(${externalsDepsArray}, ${fnStart}`,
                                source,
                                `${fnEnd});`
                        );
                }
                return new ConcatSource(
                        `${amdContainerPrefix}define(${fnStart}`,
                        source,
                        `${fnEnd});`
                );
        }

        /**
         * @param {Chunk} chunk the chunk
         * @param {Hash} hash hash
         * @param {ChunkHashContext} chunkHashContext chunk hash context
         * @param {LibraryContext<T>} libraryContext context
         * @returns {void}
         */
        chunkHash(chunk, hash, chunkHashContext, { options, compilation }) {
                hash.update("AmdLibraryPlugin");
                if (this.requireAsWrapper) {
                        hash.update("requireAsWrapper");
                } else if (options.name) {
                        hash.update("named");
                        const name = compilation.getPath(options.name, {
                                chunk
                        });
                        hash.update(name);
                } else if (options.amdContainer) {
                        hash.update("amdContainer");
                        hash.update(options.amdContainer);
                }
        }
}

module.exports = AmdLibraryPlugin;