source: trip-planner-front/node_modules/webpack/lib/sharing/ConsumeSharedModule.js

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

"use strict";

const { RawSource } = require("webpack-sources");
const AsyncDependenciesBlock = require("../AsyncDependenciesBlock");
const Module = require("../Module");
const RuntimeGlobals = require("../RuntimeGlobals");
const makeSerializable = require("../util/makeSerializable");
const { rangeToString, stringifyHoley } = require("../util/semver");
const ConsumeSharedFallbackDependency = require("./ConsumeSharedFallbackDependency");

/** @typedef {import("../../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("../ChunkGraph")} ChunkGraph */
/** @typedef {import("../ChunkGroup")} ChunkGroup */
/** @typedef {import("../Compilation")} Compilation */
/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("../Module").CodeGenerationContext} CodeGenerationContext */
/** @typedef {import("../Module").CodeGenerationResult} CodeGenerationResult */
/** @typedef {import("../Module").LibIdentOptions} LibIdentOptions */
/** @typedef {import("../Module").NeedBuildContext} NeedBuildContext */
/** @typedef {import("../RequestShortener")} RequestShortener */
/** @typedef {import("../ResolverFactory").ResolverWithOptions} ResolverWithOptions */
/** @typedef {import("../WebpackError")} WebpackError */
/** @typedef {import("../util/Hash")} Hash */
/** @typedef {import("../util/fs").InputFileSystem} InputFileSystem */
/** @typedef {import("../util/semver").SemVerRange} SemVerRange */

/**
 * @typedef {Object} ConsumeOptions
 * @property {string=} import fallback request
 * @property {string=} importResolved resolved fallback request
 * @property {string} shareKey global share key
 * @property {string} shareScope share scope
 * @property {SemVerRange | false | undefined} requiredVersion version requirement
 * @property {string} packageName package name to determine required version automatically
 * @property {boolean} strictVersion don't use shared version even if version isn't valid
 * @property {boolean} singleton use single global version
 * @property {boolean} eager include the fallback module in a sync way
 */

const TYPES = new Set(["consume-shared"]);

class ConsumeSharedModule extends Module {
        /**
         * @param {string} context context
         * @param {ConsumeOptions} options consume options
         */
        constructor(context, options) {
                super("consume-shared-module", context);
                this.options = options;
        }

        /**
         * @returns {string} a unique identifier of the module
         */
        identifier() {
                const {
                        shareKey,
                        shareScope,
                        importResolved,
                        requiredVersion,
                        strictVersion,
                        singleton,
                        eager
                } = this.options;
                return `consume-shared-module|${shareScope}|${shareKey}|${
                        requiredVersion && rangeToString(requiredVersion)
                }|${strictVersion}|${importResolved}|${singleton}|${eager}`;
        }

        /**
         * @param {RequestShortener} requestShortener the request shortener
         * @returns {string} a user readable identifier of the module
         */
        readableIdentifier(requestShortener) {
                const {
                        shareKey,
                        shareScope,
                        importResolved,
                        requiredVersion,
                        strictVersion,
                        singleton,
                        eager
                } = this.options;
                return `consume shared module (${shareScope}) ${shareKey}@${
                        requiredVersion ? rangeToString(requiredVersion) : "*"
                }${strictVersion ? " (strict)" : ""}${singleton ? " (singleton)" : ""}${
                        importResolved
                                ? ` (fallback: ${requestShortener.shorten(importResolved)})`
                                : ""
                }${eager ? " (eager)" : ""}`;
        }

        /**
         * @param {LibIdentOptions} options options
         * @returns {string | null} an identifier for library inclusion
         */
        libIdent(options) {
                const { shareKey, shareScope, import: request } = this.options;
                return `webpack/sharing/consume/${shareScope}/${shareKey}${
                        request ? `/${request}` : ""
                }`;
        }

        /**
         * @param {NeedBuildContext} context context info
         * @param {function(WebpackError=, boolean=): void} callback callback function, returns true, if the module needs a rebuild
         * @returns {void}
         */
        needBuild(context, callback) {
                callback(null, !this.buildInfo);
        }

        /**
         * @param {WebpackOptions} options webpack options
         * @param {Compilation} compilation the compilation
         * @param {ResolverWithOptions} resolver the resolver
         * @param {InputFileSystem} fs the file system
         * @param {function(WebpackError=): void} callback callback function
         * @returns {void}
         */
        build(options, compilation, resolver, fs, callback) {
                this.buildMeta = {};
                this.buildInfo = {};
                if (this.options.import) {
                        const dep = new ConsumeSharedFallbackDependency(this.options.import);
                        if (this.options.eager) {
                                this.addDependency(dep);
                        } else {
                                const block = new AsyncDependenciesBlock({});
                                block.addDependency(dep);
                                this.addBlock(block);
                        }
                }
                callback();
        }

        /**
         * @returns {Set<string>} types available (do not mutate)
         */
        getSourceTypes() {
                return TYPES;
        }

        /**
         * @param {string=} type the source type for which the size should be estimated
         * @returns {number} the estimated size of the module (must be non-zero)
         */
        size(type) {
                return 42;
        }

        /**
         * @param {Hash} hash the hash used to track dependencies
         * @param {UpdateHashContext} context context
         * @returns {void}
         */
        updateHash(hash, context) {
                hash.update(JSON.stringify(this.options));
                super.updateHash(hash, context);
        }

        /**
         * @param {CodeGenerationContext} context context for code generation
         * @returns {CodeGenerationResult} result
         */
        codeGeneration({ chunkGraph, moduleGraph, runtimeTemplate }) {
                const runtimeRequirements = new Set([RuntimeGlobals.shareScopeMap]);
                const {
                        shareScope,
                        shareKey,
                        strictVersion,
                        requiredVersion,
                        import: request,
                        singleton,
                        eager
                } = this.options;
                let fallbackCode;
                if (request) {
                        if (eager) {
                                const dep = this.dependencies[0];
                                fallbackCode = runtimeTemplate.syncModuleFactory({
                                        dependency: dep,
                                        chunkGraph,
                                        runtimeRequirements,
                                        request: this.options.import
                                });
                        } else {
                                const block = this.blocks[0];
                                fallbackCode = runtimeTemplate.asyncModuleFactory({
                                        block,
                                        chunkGraph,
                                        runtimeRequirements,
                                        request: this.options.import
                                });
                        }
                }
                let fn = "load";
                const args = [JSON.stringify(shareScope), JSON.stringify(shareKey)];
                if (requiredVersion) {
                        if (strictVersion) {
                                fn += "Strict";
                        }
                        if (singleton) {
                                fn += "Singleton";
                        }
                        args.push(stringifyHoley(requiredVersion));
                        fn += "VersionCheck";
                }
                if (fallbackCode) {
                        fn += "Fallback";
                        args.push(fallbackCode);
                }
                const code = runtimeTemplate.returningFunction(`${fn}(${args.join(", ")})`);
                const sources = new Map();
                sources.set("consume-shared", new RawSource(code));
                return {
                        runtimeRequirements,
                        sources
                };
        }

        serialize(context) {
                const { write } = context;
                write(this.options);
                super.serialize(context);
        }

        deserialize(context) {
                const { read } = context;
                this.options = read();
                super.deserialize(context);
        }
}

makeSerializable(
        ConsumeSharedModule,
        "webpack/lib/sharing/ConsumeSharedModule"
);

module.exports = ConsumeSharedModule;