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RemoteModule.js
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Thu, Feb 13, 20:43

RemoteModule.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra and Zackary Jackson @ScriptedAlchemy
*/
"use strict";
const { RawSource } = require("webpack-sources");
const Module = require("../Module");
const RuntimeGlobals = require("../RuntimeGlobals");
const makeSerializable = require("../util/makeSerializable");
const FallbackDependency = require("./FallbackDependency");
const RemoteToExternalDependency = require("./RemoteToExternalDependency");
/** @typedef {import("../../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("../ChunkGraph")} ChunkGraph */
/** @typedef {import("../ChunkGroup")} ChunkGroup */
/** @typedef {import("../Compilation")} Compilation */
/** @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 */
const TYPES = new Set(["remote", "share-init"]);
const RUNTIME_REQUIREMENTS = new Set([RuntimeGlobals.module]);
class RemoteModule extends Module {
/**
* @param {string} request request string
* @param {string[]} externalRequests list of external requests to containers
* @param {string} internalRequest name of exposed module in container
* @param {string} shareScope the used share scope name
*/
constructor(request, externalRequests, internalRequest, shareScope) {
super("remote-module");
this.request = request;
this.externalRequests = externalRequests;
this.internalRequest = internalRequest;
this.shareScope = shareScope;
this._identifier = `remote (${shareScope}) ${this.externalRequests.join(
" "
)} ${this.internalRequest}`;
}
/**
* @returns {string} a unique identifier of the module
*/
identifier() {
return this._identifier;
}
/**
* @param {RequestShortener} requestShortener the request shortener
* @returns {string} a user readable identifier of the module
*/
readableIdentifier(requestShortener) {
return `remote ${this.request}`;
}
/**
* @param {LibIdentOptions} options options
* @returns {string | null} an identifier for library inclusion
*/
libIdent(options) {
return `webpack/container/remote/${this.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 = {
strict: true
};
this.clearDependenciesAndBlocks();
if (this.externalRequests.length === 1) {
this.addDependency(
new RemoteToExternalDependency(this.externalRequests[0])
);
} else {
this.addDependency(new FallbackDependency(this.externalRequests));
}
callback();
}
/**
* @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 6;
}
/**
* @returns {Set<string>} types available (do not mutate)
*/
getSourceTypes() {
return TYPES;
}
/**
* @returns {string | null} absolute path which should be used for condition matching (usually the resource path)
*/
nameForCondition() {
return this.request;
}
/**
* @param {CodeGenerationContext} context context for code generation
* @returns {CodeGenerationResult} result
*/
codeGeneration({ runtimeTemplate, moduleGraph, chunkGraph }) {
const module = moduleGraph.getModule(this.dependencies[0]);
const id = module && chunkGraph.getModuleId(module);
const sources = new Map();
sources.set("remote", new RawSource(""));
const data = new Map();
data.set("share-init", [
{
shareScope: this.shareScope,
initStage: 20,
init: id === undefined ? "" : `initExternal(${JSON.stringify(id)});`
}
]);
return { sources, data, runtimeRequirements: RUNTIME_REQUIREMENTS };
}
serialize(context) {
const { write } = context;
write(this.request);
write(this.externalRequests);
write(this.internalRequest);
write(this.shareScope);
super.serialize(context);
}
static deserialize(context) {
const { read } = context;
const obj = new RemoteModule(read(), read(), read(), read());
obj.deserialize(context);
return obj;
}
}
makeSerializable(RemoteModule, "webpack/lib/container/RemoteModule");
module.exports = RemoteModule;

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