/* MIT License http://www.opensource.org/licenses/mit-license.php Author Tobias Koppers @sokra */ "use strict"; const RuntimeGlobals = require("../RuntimeGlobals"); const RuntimeModule = require("../RuntimeModule"); const Template = require("../Template"); /** @typedef {import("./RemoteModule")} RemoteModule */ class RemoteRuntimeModule extends RuntimeModule { constructor() { super("remotes loading"); } /** * @returns {string} runtime code */ generate() { const { runtimeTemplate, chunkGraph, moduleGraph } = this.compilation; const chunkToRemotesMapping = {}; const idToExternalAndNameMapping = {}; for (const chunk of this.chunk.getAllAsyncChunks()) { const modules = chunkGraph.getChunkModulesIterableBySourceType( chunk, "remote" ); if (!modules) continue; const remotes = (chunkToRemotesMapping[chunk.id] = []); for (const m of modules) { const module = /** @type {RemoteModule} */ (m); const name = module.internalRequest; const id = chunkGraph.getModuleId(module); const shareScope = module.shareScope; const dep = module.dependencies[0]; const externalModule = moduleGraph.getModule(dep); const externalModuleId = externalModule && chunkGraph.getModuleId(externalModule); remotes.push(id); idToExternalAndNameMapping[id] = [shareScope, name, externalModuleId]; } } return Template.asString([ `var chunkMapping = ${JSON.stringify( chunkToRemotesMapping, null, "\t" )};`, `var idToExternalAndNameMapping = ${JSON.stringify( idToExternalAndNameMapping, null, "\t" )};`, `${ RuntimeGlobals.ensureChunkHandlers }.remotes = ${runtimeTemplate.basicFunction("chunkId, promises", [ `if(${RuntimeGlobals.hasOwnProperty}(chunkMapping, chunkId)) {`, Template.indent([ `chunkMapping[chunkId].forEach(${runtimeTemplate.basicFunction("id", [ `var getScope = ${RuntimeGlobals.currentRemoteGetScope};`, "if(!getScope) getScope = [];", "var data = idToExternalAndNameMapping[id];", "if(getScope.indexOf(data) >= 0) return;", "getScope.push(data);", `if(data.p) return promises.push(data.p);`, `var onError = ${runtimeTemplate.basicFunction("error", [ 'if(!error) error = new Error("Container missing");', 'if(typeof error.message === "string")', Template.indent( `error.message += '\\nwhile loading "' + data[1] + '" from ' + data[2];` ), `__webpack_modules__[id] = ${runtimeTemplate.basicFunction("", [ "throw error;" ])}`, "data.p = 0;" ])};`, `var handleFunction = ${runtimeTemplate.basicFunction( "fn, arg1, arg2, d, next, first", [ "try {", Template.indent([ "var promise = fn(arg1, arg2);", "if(promise && promise.then) {", Template.indent([ `var p = promise.then(${runtimeTemplate.returningFunction( "next(result, d)", "result" )}, onError);`, `if(first) promises.push(data.p = p); else return p;` ]), "} else {", Template.indent(["return next(promise, d, first);"]), "}" ]), "} catch(error) {", Template.indent(["onError(error);"]), "}" ] )}`, `var onExternal = ${runtimeTemplate.returningFunction( `external ? handleFunction(${RuntimeGlobals.initializeSharing}, data[0], 0, external, onInitialized, first) : onError()`, "external, _, first" )};`, `var onInitialized = ${runtimeTemplate.returningFunction( `handleFunction(external.get, data[1], getScope, 0, onFactory, first)`, "_, external, first" )};`, `var onFactory = ${runtimeTemplate.basicFunction("factory", [ "data.p = 1;", `__webpack_modules__[id] = ${runtimeTemplate.basicFunction( "module", ["module.exports = factory();"] )}` ])};`, "handleFunction(__webpack_require__, data[2], 0, 0, onExternal, 1);" ])});` ]), "}" ])}` ]); } } module.exports = RemoteRuntimeModule;