Alex Hochheiden
d0470670a1
`third_party/node/node_modules` is generated by `./mach vendor node`. Differential Revision: https://phabricator.services.mozilla.com/D320322
1868 lines
60 KiB
JavaScript
1868 lines
60 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const InitFragment = require("./InitFragment");
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const {
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JAVASCRIPT_TYPE,
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RUNTIME_TYPE
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} = require("./ModuleSourceTypeConstants");
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const {
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WEBPACK_MODULE_TYPE_CONSUME_SHARED_MODULE,
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WEBPACK_MODULE_TYPE_FALLBACK,
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WEBPACK_MODULE_TYPE_PROVIDE,
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WEBPACK_MODULE_TYPE_REMOTE
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} = require("./ModuleTypeConstants");
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const RuntimeGlobals = require("./RuntimeGlobals");
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const Template = require("./Template");
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const {
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getOutgoingAsyncModules
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} = require("./async-modules/AsyncModuleHelpers");
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const { ImportPhaseUtils } = require("./dependencies/ImportPhase");
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const { InlinedUsedName } = require("./optimize/InlineExports");
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const {
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getDeferredCycleModuleIds,
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getDeferredCycleModules,
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getMakeDeferredNamespaceModeFromExportsType,
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getOptimizedDeferredModule
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} = require("./runtime/MakeDeferredNamespaceObjectRuntime");
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const { equals } = require("./util/ArrayHelpers");
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const compileBooleanMatcher = require("./util/compileBooleanMatcher");
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const { getUndoPath, toJsStringLiteral } = require("./util/identifier");
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const memoize = require("./util/memoize");
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const { propertyAccess, propertyName } = require("./util/property");
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const { forEachRuntime, subtractRuntime } = require("./util/runtime");
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const getHarmonyImportDependency = memoize(() =>
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require("./dependencies/HarmonyImportDependency")
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);
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const getImportDependency = memoize(() =>
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require("./dependencies/ImportDependency")
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);
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const getJavascriptModulesPlugin = memoize(() =>
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require("./javascript/JavascriptModulesPlugin")
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);
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const getModuleHotAcceptDependency = memoize(() =>
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require("./dependencies/ModuleHotAcceptDependency")
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);
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const getAPIPlugin = memoize(() => require("./APIPlugin"));
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// Module-federation module types whose chunks load through the federation runtime.
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/** @type {Set<string>} */
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const FEDERATION_MODULE_TYPES = new Set([
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WEBPACK_MODULE_TYPE_REMOTE,
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WEBPACK_MODULE_TYPE_PROVIDE,
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WEBPACK_MODULE_TYPE_CONSUME_SHARED_MODULE,
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WEBPACK_MODULE_TYPE_FALLBACK
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]);
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// Any `[hash]`/`[fullhash]`/`[chunkhash]`/`[contenthash]` token, incl. a `:<length>`
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// or `:<digest>[:<length>]` suffix (e.g. `[contenthash:base64:8]`). Its value is only
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// resolved after code generation, so a filename using one can't be an inline literal.
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const HASH_IN_FILENAME = /\[(?:full|chunk|content)?hash(?::[^\]]+)?\]/;
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const HASH_IN_FILENAME_GLOBAL = /\[(?:full|chunk|content)?hash(?::[^\]]+)?\]/g;
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/** @typedef {import("./config/defaults").OutputNormalizedWithDefaults} OutputOptions */
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/** @typedef {import("./AsyncDependenciesBlock")} AsyncDependenciesBlock */
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/** @typedef {import("./Chunk")} Chunk */
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/** @typedef {import("./ChunkGraph")} ChunkGraph */
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/** @typedef {import("./Compilation")} Compilation */
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/** @typedef {import("./Dependency")} Dependency */
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/** @typedef {import("./Module")} Module */
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/** @typedef {import("./Module").BuildMeta} BuildMeta */
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/** @typedef {import("./Module").RuntimeRequirements} RuntimeRequirements */
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/** @typedef {import("./ModuleGraph")} ModuleGraph */
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/** @typedef {import("./RequestShortener")} RequestShortener */
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/** @typedef {import("./util/runtime").RuntimeSpec} RuntimeSpec */
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/** @typedef {import("./dependencies/ImportPhase").ImportPhaseType} ImportPhaseType */
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/** @typedef {import("./NormalModuleFactory").ModuleDependency} ModuleDependency */
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/**
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* No module id error message.
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* @param {Module} module the module
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* @param {ChunkGraph} chunkGraph the chunk graph
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* @returns {string} error message
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*/
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const noModuleIdErrorMessage = (
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module,
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chunkGraph
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) => `Module ${module.identifier()} has no id assigned.
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This should not happen.
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It's in these chunks: ${
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Array.from(
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chunkGraph.getModuleChunksIterable(module),
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(c) => c.name || c.id || c.debugId
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).join(", ") || "none"
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} (If module is in no chunk this indicates a bug in some chunk/module optimization logic)
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Module has these incoming connections: ${Array.from(
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chunkGraph.moduleGraph.getIncomingConnections(module),
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(connection) =>
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`\n - ${connection.originModule && connection.originModule.identifier()} ${
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connection.dependency && connection.dependency.type
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} ${
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(connection.explanations && [...connection.explanations].join(", ")) || ""
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}`
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).join("")}`;
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/**
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* Gets global object.
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* @param {string | undefined} definition global object definition
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* @returns {string | undefined} save to use global object
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*/
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function getGlobalObject(definition) {
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if (!definition) return definition;
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const trimmed = definition.trim();
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if (
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// identifier, we do not need real identifier regarding ECMAScript/Unicode
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/^[_\p{L}][_0-9\p{L}]*$/iu.test(trimmed) ||
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// iife
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// call expression
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// expression in parentheses
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/^(?:[_\p{L}][_0-9\p{L}]*)?\(.*\)$/iu.test(trimmed)
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) {
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return trimmed;
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}
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return `Object(${trimmed})`;
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}
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class RuntimeTemplate {
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/**
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* Creates an instance of RuntimeTemplate.
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* @param {Compilation} compilation the compilation
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* @param {OutputOptions} outputOptions the compilation output options
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* @param {RequestShortener} requestShortener the request shortener
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*/
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constructor(compilation, outputOptions, requestShortener) {
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/** @type {Compilation} */
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this.compilation = compilation;
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this.outputOptions = /** @type {OutputOptions} */ (outputOptions || {});
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/** @type {RequestShortener} */
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this.requestShortener = requestShortener;
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/** @type {string} */
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this.globalObject =
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/** @type {string} */
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(getGlobalObject(outputOptions.globalObject));
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/** @type {string} */
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this.contentHashReplacement = "X".repeat(outputOptions.hashDigestLength);
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}
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isIIFE() {
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return this.outputOptions.iife;
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}
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isModule() {
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return this.outputOptions.module;
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}
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isNeutralPlatform() {
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return (
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!this.compilation.compiler.platform.web &&
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!this.compilation.compiler.platform.node
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);
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}
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/**
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* Whether the bundle targets node and web at once (universal `["node", "web"]` + `output.module`), like `isUniversalTarget` in `WebpackOptionsApply`.
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* @returns {boolean} true for a universal target
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*/
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isUniversalTarget() {
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const { platform } = this.compilation.compiler;
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return (
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Boolean(this.outputOptions.module) &&
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platform.node === null &&
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platform.web === null
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);
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}
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/**
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* Runtime expression that is truthy in browser-like environments (a DOM
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* `document` or a worker `self`) and falsy in Node.js. Single source of
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* truth for branching a universal ("node-or-web") target at runtime.
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* @returns {string} runtime condition expression
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*/
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isWebLikePlatformExpression() {
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return "typeof document !== 'undefined' || typeof self !== 'undefined'";
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}
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/**
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* Expression for the global registry that collects CSS server-side when there
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* is no DOM (SSR). An SSR host reads it from `globalThis`; it is keyed by the
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* style/chunk identifier and namespaced by `output.uniqueName`.
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* @returns {string} runtime expression evaluating to the registry object
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*/
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cssServerStyleRegistry() {
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const name = this.outputOptions.uniqueName;
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const key = JSON.stringify(
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name ? `__webpack_css__${name}` : "__webpack_css__"
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);
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return `(${this.assignOr(`globalThis[${key}]`, "{}")})`;
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}
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supportsConst() {
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return this.outputOptions.environment.const;
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}
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supportsLet() {
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return this.outputOptions.environment.let;
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}
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supportsMethodShorthand() {
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return this.outputOptions.environment.methodShorthand;
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}
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supportsLogicalAssignment() {
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return this.outputOptions.environment.logicalAssignment;
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}
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supportsArrowFunction() {
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return this.outputOptions.environment.arrowFunction;
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}
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supportsAsyncFunction() {
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return this.outputOptions.environment.asyncFunction;
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}
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supportsGenerator() {
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return this.outputOptions.environment.generator;
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}
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supportsOptionalChaining() {
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return this.outputOptions.environment.optionalChaining;
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}
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supportsSpread() {
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return this.outputOptions.environment.spread;
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}
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supportsObjectHasOwn() {
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return this.outputOptions.environment.hasOwn;
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}
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supportsSymbol() {
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return this.outputOptions.environment.symbol;
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}
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supportsForOf() {
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return this.outputOptions.environment.forOf;
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}
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supportsDestructuring() {
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return this.outputOptions.environment.destructuring;
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}
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supportsBigIntLiteral() {
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return this.outputOptions.environment.bigIntLiteral;
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}
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supportsDynamicImport() {
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return this.outputOptions.environment.dynamicImport;
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}
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supportsEcmaScriptModuleSyntax() {
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return this.outputOptions.environment.module;
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}
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supportsModulePreload() {
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return this.outputOptions.environment.modulePreload;
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}
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supportsAnalyzableEsm() {
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// `eval` devtool wraps each module in `eval(...)`, where `import.meta` is a
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// syntax error, so the literal `new URL(…, import.meta.url)` form can't be used.
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const { devtool } = this.compilation.options;
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return (
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this.isModule() &&
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this.supportsEcmaScriptModuleSyntax() &&
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!(typeof devtool === "string" && devtool.includes("eval")) &&
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// A runtime `__webpack_public_path__` override can't be reflected in a
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// baked literal, so keep the runtime form that reads `__webpack_require__.p`.
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!getAPIPlugin().usesRuntimePublicPathOverride(this.compilation)
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);
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}
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supportTemplateLiteral() {
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return this.outputOptions.environment.templateLiteral;
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}
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supportNodePrefixForCoreModules() {
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return this.outputOptions.environment.nodePrefixForCoreModules;
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}
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/**
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* Renders node prefix for core module.
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* @param {string} mod a module
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* @returns {string} a module with `node:` prefix when supported, otherwise an original name
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*/
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renderNodePrefixForCoreModule(mod) {
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return this.outputOptions.environment.nodePrefixForCoreModules
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? `"node:${mod}"`
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: `"${mod}"`;
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}
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/**
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* Renders return const when it is supported, otherwise let when supported, otherwise var.
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* @returns {"const" | "let" | "var"} return `const` when it is supported, otherwise `let` when supported, otherwise `var`
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*/
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renderConst() {
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return this.supportsConst() ? "const" : this.supportsLet() ? "let" : "var";
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}
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/**
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* Renders return let when it is supported, otherwise var.
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* @returns {"let" | "var"} return `let` when it is supported, otherwise `var`
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*/
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renderLet() {
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return this.supportsLet() ? "let" : "var";
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}
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/**
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* Returning function.
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* @param {string} returnValue return value
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* @param {string} args arguments
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* @returns {string} returning function
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*/
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returningFunction(returnValue, args = "") {
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return this.supportsArrowFunction()
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? `(${args}) => (${returnValue})`
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: `function(${args}) { return ${returnValue}; }`;
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}
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/**
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* Returns basic function.
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* @param {string} args arguments
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* @param {string | string[]} body body
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* @returns {string} basic function
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*/
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basicFunction(args, body) {
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return this.supportsArrowFunction()
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? `(${args}) => {\n${Template.indent(body)}\n}`
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: `function(${args}) {\n${Template.indent(body)}\n}`;
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}
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/**
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* Returns result expression.
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* @param {(string | { expr: string })[]} args args
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* @returns {string} result expression
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*/
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concatenation(...args) {
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const len = args.length;
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if (len === 2) return this._es5Concatenation(args);
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if (len === 0) return '""';
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if (len === 1) {
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return typeof args[0] === "string"
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? JSON.stringify(args[0])
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: `"" + ${args[0].expr}`;
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}
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if (!this.supportTemplateLiteral()) return this._es5Concatenation(args);
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// cost comparison between template literal and concatenation:
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// both need equal surroundings: `xxx` vs "xxx"
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// template literal has constant cost of 3 chars for each expression
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// es5 concatenation has cost of 3 + n chars for n expressions in row
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// when a es5 concatenation ends with an expression it reduces cost by 3
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// when a es5 concatenation starts with an single expression it reduces cost by 3
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// e. g. `${a}${b}${c}` (3*3 = 9) is longer than ""+a+b+c ((3+3)-3 = 3)
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// e. g. `x${a}x${b}x${c}x` (3*3 = 9) is shorter than "x"+a+"x"+b+"x"+c+"x" (4+4+4 = 12)
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let templateCost = 0;
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let concatenationCost = 0;
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let lastWasExpr = false;
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for (const arg of args) {
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const isExpr = typeof arg !== "string";
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if (isExpr) {
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templateCost += 3;
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concatenationCost += lastWasExpr ? 1 : 4;
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}
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lastWasExpr = isExpr;
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}
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if (lastWasExpr) concatenationCost -= 3;
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if (typeof args[0] !== "string" && typeof args[1] === "string") {
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concatenationCost -= 3;
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}
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if (concatenationCost <= templateCost) return this._es5Concatenation(args);
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return `\`${args
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.map((arg) => (typeof arg === "string" ? arg : `\${${arg.expr}}`))
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.join("")}\``;
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}
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/**
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* Returns result expression.
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* @param {(string | { expr: string })[]} args args (len >= 2)
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* @returns {string} result expression
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* @private
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*/
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_es5Concatenation(args) {
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const str = args
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.map((arg) => (typeof arg === "string" ? JSON.stringify(arg) : arg.expr))
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.join(" + ");
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// when the first two args are expression, we need to prepend "" + to force string
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// concatenation instead of number addition.
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return typeof args[0] !== "string" && typeof args[1] !== "string"
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? `"" + ${str}`
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: str;
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}
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/**
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* Expression function.
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* @param {string} expression expression
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* @param {string} args arguments
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* @returns {string} expression function code
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*/
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expressionFunction(expression, args = "") {
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return this.supportsArrowFunction()
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? `(${args}) => (${expression})`
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: `function(${args}) { ${expression}; }`;
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}
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/**
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* Returns empty function code.
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* @returns {string} empty function code
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*/
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emptyFunction() {
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return this.supportsArrowFunction() ? "x => {}" : "function() {}";
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}
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|
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/**
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* Guards an access/call on `object` with optional chaining when supported,
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* otherwise an equivalent `&&` short-circuit. `object` is evaluated twice in
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* the fallback, so it must be side-effect free.
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* @param {string} object base expression (side-effect free)
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* @param {string} access continuation after the optional point, e.g. `()`, `prop`, `method(arg)` or `[key]`
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* @returns {string} guarded access expression
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*/
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optionalChaining(object, access) {
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if (this.supportsOptionalChaining()) {
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return `${object}?.${access}`;
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}
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const sep = access[0] === "(" || access[0] === "[" ? "" : ".";
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return `${object} && ${object}${sep}${access}`;
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}
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|
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/**
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* Reads a node builtin via `process.getBuiltinModule()`, guarded to stay falsy off node so universal `["node", "web"]` bundles don't crash (also falsy on node <22.3).
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* @param {string} request builtin module request as a JS string expression, e.g. from `renderNodePrefixForCoreModule`
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* @param {string=} access member/call chain appended to the module, e.g. `.Worker` or `.createRequire(url)`
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* @returns {string} guarded expression
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*/
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getBuiltinModule(request, access = "") {
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const getter = `process.getBuiltinModule(${request})${access}`;
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if (this.outputOptions.environment.nodeBuiltinModuleGetter) {
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return `typeof process !== "undefined" && ${getter}`;
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}
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return `typeof process !== "undefined" && typeof process.getBuiltinModule === "function" && ${getter}`;
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}
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|
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/**
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* Renders an object-literal method, using method shorthand when supported
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|
* and falling back to a `prop: function/arrow` property otherwise.
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* @param {string} prop property name (or computed key like `[x]`)
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* @param {string} args arguments
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* @param {string | string[]} body body
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* @returns {string} method code
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*/
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method(prop, args, body) {
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return this.supportsMethodShorthand()
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? `${prop}(${args}) {\n${Template.indent(body)}\n}`
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: `${prop}: ${this.basicFunction(args, body)}`;
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}
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/**
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* Returns an own-property check, using `Object.hasOwn` when supported and
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* falling back to `Object.prototype.hasOwnProperty.call` otherwise.
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* @param {string} object object expression
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* @param {string} property property expression
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* @returns {string} own-property check expression
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*/
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objectHasOwn(object, property) {
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return this.supportsObjectHasOwn()
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? `Object.hasOwn(${object}, ${property})`
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: `Object.prototype.hasOwnProperty.call(${object}, ${property})`;
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}
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/**
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* Returns a self-defaulting assignment, using the `||=` logical assignment
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* operator when supported and falling back to `target = target || value`
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* otherwise. `target` is evaluated twice in the fallback, so it must be
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* side-effect free. The expression evaluates to the resulting value.
|
|
* Models `||` only, so `target` must never hold a legitimate falsy value
|
|
* (`0`, `""`, `false`) — it would be overwritten; use it for object/array defaults.
|
|
* @param {string} target assignment target (side-effect free)
|
|
* @param {string} value default value expression
|
|
* @returns {string} assignment expression
|
|
*/
|
|
assignOr(target, value) {
|
|
return this.supportsLogicalAssignment()
|
|
? `${target} ||= ${value}`
|
|
: `${target} = ${target} || ${value}`;
|
|
}
|
|
|
|
/**
|
|
* Returns destructure array code.
|
|
* @param {string[]} items items
|
|
* @param {string} value value
|
|
* @returns {string} destructure array code
|
|
*/
|
|
destructureArray(items, value) {
|
|
const decl = this.renderLet();
|
|
return this.supportsDestructuring()
|
|
? `${decl} [${items.join(", ")}] = ${value};`
|
|
: Template.asString(
|
|
items.map((item, i) => `${decl} ${item} = ${value}[${i}];`)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Destructure object.
|
|
* @param {string[]} items items
|
|
* @param {string} value value
|
|
* @returns {string} destructure object code
|
|
*/
|
|
destructureObject(items, value) {
|
|
const decl = this.renderLet();
|
|
return this.supportsDestructuring()
|
|
? `${decl} {${items.join(", ")}} = ${value};`
|
|
: Template.asString(
|
|
items.map(
|
|
(item) => `${decl} ${item} = ${value}${propertyAccess([item])};`
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Returns iIFE code.
|
|
* @param {string} args arguments
|
|
* @param {string} body body
|
|
* @returns {string} IIFE code
|
|
*/
|
|
iife(args, body) {
|
|
return `(${this.basicFunction(args, body)})()`;
|
|
}
|
|
|
|
/**
|
|
* Returns for each code.
|
|
* @param {string} variable variable
|
|
* @param {string} array array
|
|
* @param {string | string[]} body body
|
|
* @returns {string} for each code
|
|
*/
|
|
forEach(variable, array, body) {
|
|
return this.supportsForOf()
|
|
? `for(const ${variable} of ${array}) {\n${Template.indent(body)}\n}`
|
|
: `${array}.forEach(function(${variable}) {\n${Template.indent(
|
|
body
|
|
)}\n});`;
|
|
}
|
|
|
|
/**
|
|
* Returns comment.
|
|
* @param {object} options Information content of the comment
|
|
* @param {string=} options.request request string used originally
|
|
* @param {(string | null)=} options.chunkName name of the chunk referenced
|
|
* @param {string=} options.chunkReason reason information of the chunk
|
|
* @param {string=} options.message additional message
|
|
* @param {string=} options.exportName name of the export
|
|
* @returns {string} comment
|
|
*/
|
|
comment({ request, chunkName, chunkReason, message, exportName }) {
|
|
/** @type {string} */
|
|
let content;
|
|
if (this.outputOptions.pathinfo) {
|
|
content = [message, request, chunkName, chunkReason]
|
|
.filter(Boolean)
|
|
.map((item) => this.requestShortener.shorten(item))
|
|
.join(" | ");
|
|
} else {
|
|
content = [message, chunkName, chunkReason]
|
|
.filter(Boolean)
|
|
.map((item) => this.requestShortener.shorten(item))
|
|
.join(" | ");
|
|
}
|
|
if (!content) return "";
|
|
if (this.outputOptions.pathinfo) {
|
|
return `${Template.toComment(content)} `;
|
|
}
|
|
return `${Template.toNormalComment(content)} `;
|
|
}
|
|
|
|
/**
|
|
* Throw missing module error block.
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error block
|
|
*/
|
|
throwMissingModuleErrorBlock({ request }) {
|
|
const err = `Cannot find module '${request}'`;
|
|
return `${this.renderConst()} e = new Error(${JSON.stringify(
|
|
err
|
|
)}); e.code = 'MODULE_NOT_FOUND'; throw e;`;
|
|
}
|
|
|
|
/**
|
|
* Throw missing module error function.
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error function
|
|
*/
|
|
throwMissingModuleErrorFunction({ request }) {
|
|
return `function webpackMissingModule() { ${this.throwMissingModuleErrorBlock(
|
|
{ request }
|
|
)} }`;
|
|
}
|
|
|
|
/**
|
|
* Returns generated error IIFE.
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error IIFE
|
|
*/
|
|
missingModule({ request }) {
|
|
return `Object(${this.throwMissingModuleErrorFunction({ request })}())`;
|
|
}
|
|
|
|
/**
|
|
* Missing module statement.
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error statement
|
|
*/
|
|
missingModuleStatement({ request }) {
|
|
return `${this.missingModule({ request })};\n`;
|
|
}
|
|
|
|
/**
|
|
* Missing module promise.
|
|
* @param {object} options generation options
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} generated error code
|
|
*/
|
|
missingModulePromise({ request }) {
|
|
return `Promise.resolve().then(${this.throwMissingModuleErrorFunction({
|
|
request
|
|
})})`;
|
|
}
|
|
|
|
/**
|
|
* Returns the code.
|
|
* @param {object} options options object
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {Module} options.module the module
|
|
* @param {string=} options.request the request that should be printed as comment
|
|
* @param {string=} options.idExpr expression to use as id expression
|
|
* @param {"expression" | "promise" | "statements"} options.type which kind of code should be returned
|
|
* @returns {string} the code
|
|
*/
|
|
weakError({ module, chunkGraph, request, idExpr, type }) {
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
const errorMessage =
|
|
moduleId === null
|
|
? JSON.stringify("Module is not available (weak dependency)")
|
|
: idExpr
|
|
? `"Module '" + ${idExpr} + "' is not available (weak dependency)"`
|
|
: JSON.stringify(
|
|
`Module '${moduleId}' is not available (weak dependency)`
|
|
);
|
|
const comment = request ? `${Template.toNormalComment(request)} ` : "";
|
|
const errorStatements = `${this.renderConst()} e = new Error(${errorMessage}); ${comment}e.code = 'MODULE_NOT_FOUND'; throw e;`;
|
|
switch (type) {
|
|
case "statements":
|
|
return errorStatements;
|
|
case "promise":
|
|
return `Promise.resolve().then(${this.basicFunction(
|
|
"",
|
|
errorStatements
|
|
)})`;
|
|
case "expression":
|
|
return this.iife("", errorStatements);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the expression.
|
|
* @param {object} options options object
|
|
* @param {Module} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string=} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleId({ module, chunkGraph, request, weak }) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
if (moduleId === null) {
|
|
if (weak) {
|
|
return "null /* weak dependency, without id */";
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleId(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
return `${this.comment({ request })}${JSON.stringify(moduleId)}`;
|
|
}
|
|
|
|
/**
|
|
* Returns the expression.
|
|
* @param {object} options options object
|
|
* @param {Module | null} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string=} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleRaw({ module, chunkGraph, request, weak, runtimeRequirements }) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
if (moduleId === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "expression"
|
|
});
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleId(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
return `${RuntimeGlobals.require}(${this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
})})`;
|
|
}
|
|
|
|
/**
|
|
* Returns the expression.
|
|
* @param {object} options options object
|
|
* @param {Module | null} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleExports({ module, chunkGraph, request, weak, runtimeRequirements }) {
|
|
return this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Returns the expression.
|
|
* @param {object} options options object
|
|
* @param {Module} options.module the module
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.strict if the current module is in strict esm mode
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} the expression
|
|
*/
|
|
moduleNamespace({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
strict,
|
|
weak,
|
|
runtimeRequirements
|
|
}) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
if (chunkGraph.getModuleId(module) === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "expression"
|
|
});
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleNamespace(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
const moduleId = this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
});
|
|
const exportsType = module.getExportsType(chunkGraph.moduleGraph, strict);
|
|
switch (exportsType) {
|
|
case "namespace":
|
|
return this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
case "default-with-named":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
return `${RuntimeGlobals.createFakeNamespaceObject}(${moduleId}, 3)`;
|
|
case "default-only":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
return `${RuntimeGlobals.createFakeNamespaceObject}(${moduleId}, 1)`;
|
|
case "dynamic":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
return `${RuntimeGlobals.createFakeNamespaceObject}(${moduleId}, 7)`;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Module namespace promise.
|
|
* @param {object} options options object
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {AsyncDependenciesBlock=} options.block the current dependencies block
|
|
* @param {Module} options.module the module
|
|
* @param {string} options.request the request that should be printed as comment
|
|
* @param {string} options.message a message for the comment
|
|
* @param {boolean=} options.strict if the current module is in strict esm mode
|
|
* @param {boolean=} options.weak if the dependency is weak (will create a nice error message)
|
|
* @param {Dependency} options.dependency dependency
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {Module=} options.originModule the module the `import()` is emitted into
|
|
* @returns {string} the promise expression
|
|
*/
|
|
moduleNamespacePromise({
|
|
chunkGraph,
|
|
block,
|
|
module,
|
|
request,
|
|
message,
|
|
strict,
|
|
weak,
|
|
dependency,
|
|
runtimeRequirements,
|
|
originModule
|
|
}) {
|
|
if (!module) {
|
|
return this.missingModulePromise({
|
|
request
|
|
});
|
|
}
|
|
const moduleId = chunkGraph.getModuleId(module);
|
|
if (moduleId === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "promise"
|
|
});
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.moduleNamespacePromise(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
const promise = this.blockPromise({
|
|
chunkGraph,
|
|
block,
|
|
message,
|
|
runtimeRequirements,
|
|
originModule
|
|
});
|
|
|
|
/** @type {string} */
|
|
let appending;
|
|
let idExpr = JSON.stringify(chunkGraph.getModuleId(module));
|
|
const comment = this.comment({
|
|
request
|
|
});
|
|
let header = "";
|
|
if (weak) {
|
|
if (idExpr.length > 8) {
|
|
// 'var x="nnnnnn";x,"+x+",x' vs '"nnnnnn",nnnnnn,"nnnnnn"'
|
|
header += `${this.renderConst()} id = ${idExpr}; `;
|
|
idExpr = "id";
|
|
}
|
|
runtimeRequirements.add(RuntimeGlobals.moduleFactories);
|
|
header += `if(!${
|
|
RuntimeGlobals.moduleFactories
|
|
}[${idExpr}]) { ${this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
idExpr,
|
|
type: "statements"
|
|
})} } `;
|
|
}
|
|
const exportsType = module.getExportsType(chunkGraph.moduleGraph, strict);
|
|
|
|
const isModuleDeferred =
|
|
(dependency instanceof getHarmonyImportDependency() ||
|
|
dependency instanceof getImportDependency()) &&
|
|
ImportPhaseUtils.isDefer(dependency.phase) &&
|
|
!(/** @type {BuildMeta} */ (module.buildMeta).async);
|
|
|
|
if (isModuleDeferred) {
|
|
runtimeRequirements.add(RuntimeGlobals.makeDeferredNamespaceObject);
|
|
|
|
let mode = getMakeDeferredNamespaceModeFromExportsType(exportsType);
|
|
if (mode) mode = `${mode} | 16`;
|
|
|
|
const asyncDeps = Array.from(
|
|
getOutgoingAsyncModules(chunkGraph.moduleGraph, module),
|
|
(m) => chunkGraph.getModuleId(m)
|
|
).filter((id) => id !== null);
|
|
if (asyncDeps.length) {
|
|
if (header) {
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${
|
|
RuntimeGlobals.deferredModuleAsyncTransitiveDependencies
|
|
}(${JSON.stringify(asyncDeps)});`
|
|
)})`;
|
|
} else {
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
appending = `.then(${this.returningFunction(
|
|
`${
|
|
RuntimeGlobals.deferredModuleAsyncTransitiveDependencies
|
|
}(${JSON.stringify(asyncDeps)})`
|
|
)})`;
|
|
}
|
|
appending += `.then(${RuntimeGlobals.makeDeferredNamespaceObject}.bind(${RuntimeGlobals.require}, ${comment}${idExpr}, ${mode}))`;
|
|
} else if (header) {
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${RuntimeGlobals.makeDeferredNamespaceObject}(${comment}${idExpr}, ${mode});`
|
|
)})`;
|
|
} else {
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
appending = `.then(${RuntimeGlobals.makeDeferredNamespaceObject}.bind(${RuntimeGlobals.require}, ${comment}${idExpr}, ${mode}))`;
|
|
}
|
|
} else {
|
|
let fakeType = 16;
|
|
switch (exportsType) {
|
|
case "namespace":
|
|
if (header) {
|
|
const rawModule = this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${rawModule};`
|
|
)})`;
|
|
} else {
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
appending = `.then(${RuntimeGlobals.require}.bind(${RuntimeGlobals.require}, ${comment}${idExpr}))`;
|
|
}
|
|
break;
|
|
case "dynamic":
|
|
fakeType |= 4;
|
|
/* fall through */
|
|
case "default-with-named":
|
|
fakeType |= 2;
|
|
/* fall through */
|
|
case "default-only":
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
if (chunkGraph.moduleGraph.isAsync(module)) {
|
|
if (header) {
|
|
const rawModule = this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak,
|
|
runtimeRequirements
|
|
});
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${rawModule};`
|
|
)})`;
|
|
} else {
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
appending = `.then(${RuntimeGlobals.require}.bind(${RuntimeGlobals.require}, ${comment}${idExpr}))`;
|
|
}
|
|
appending += `.then(${this.returningFunction(
|
|
`${RuntimeGlobals.createFakeNamespaceObject}(m, ${fakeType})`,
|
|
"m"
|
|
)})`;
|
|
} else {
|
|
fakeType |= 1;
|
|
if (header) {
|
|
const moduleIdExpr = this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
});
|
|
const returnExpression = `${RuntimeGlobals.createFakeNamespaceObject}(${moduleIdExpr}, ${fakeType})`;
|
|
appending = `.then(${this.basicFunction(
|
|
"",
|
|
`${header}return ${returnExpression};`
|
|
)})`;
|
|
} else {
|
|
appending = `.then(${RuntimeGlobals.createFakeNamespaceObject}.bind(${RuntimeGlobals.require}, ${comment}${idExpr}, ${fakeType}))`;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return `${promise || "Promise.resolve()"}${appending}`;
|
|
}
|
|
|
|
/**
|
|
* Runtime condition expression.
|
|
* @param {object} options options object
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {RuntimeSpec=} options.runtime runtime for which this code will be generated
|
|
* @param {RuntimeSpec | boolean=} options.runtimeCondition only execute the statement in some runtimes
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} expression
|
|
*/
|
|
runtimeConditionExpression({
|
|
chunkGraph,
|
|
runtimeCondition,
|
|
runtime,
|
|
runtimeRequirements
|
|
}) {
|
|
if (runtimeCondition === undefined) return "true";
|
|
if (typeof runtimeCondition === "boolean") return `${runtimeCondition}`;
|
|
/** @type {Set<string>} */
|
|
const positiveRuntimeIds = new Set();
|
|
forEachRuntime(runtimeCondition, (runtime) =>
|
|
positiveRuntimeIds.add(
|
|
`${chunkGraph.getRuntimeId(/** @type {string} */ (runtime))}`
|
|
)
|
|
);
|
|
/** @type {Set<string>} */
|
|
const negativeRuntimeIds = new Set();
|
|
forEachRuntime(subtractRuntime(runtime, runtimeCondition), (runtime) =>
|
|
negativeRuntimeIds.add(
|
|
`${chunkGraph.getRuntimeId(/** @type {string} */ (runtime))}`
|
|
)
|
|
);
|
|
runtimeRequirements.add(RuntimeGlobals.runtimeId);
|
|
return compileBooleanMatcher.fromLists(
|
|
[...positiveRuntimeIds],
|
|
[...negativeRuntimeIds]
|
|
)(RuntimeGlobals.runtimeId);
|
|
}
|
|
|
|
/**
|
|
* Returns the import statement and the compat statement.
|
|
* @param {object} options options object
|
|
* @param {boolean=} options.update whether a new variable should be created or the existing one updated
|
|
* @param {Module} options.module the module
|
|
* @param {Module} options.originModule module in which the statement is emitted
|
|
* @param {ModuleGraph} options.moduleGraph the module graph
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {string} options.importVar name of the import variable
|
|
* @param {string=} options.request the request that should be printed as comment
|
|
* @param {boolean=} options.weak true, if this is a weak dependency
|
|
* @param {ModuleDependency=} options.dependency module dependency
|
|
* @returns {[string, string]} the import statement and the compat statement
|
|
*/
|
|
importStatement({
|
|
update,
|
|
module,
|
|
moduleGraph,
|
|
chunkGraph,
|
|
request,
|
|
importVar,
|
|
originModule,
|
|
weak,
|
|
dependency,
|
|
runtimeRequirements
|
|
}) {
|
|
if (!module) {
|
|
return [
|
|
this.missingModuleStatement({
|
|
request
|
|
}),
|
|
""
|
|
];
|
|
}
|
|
|
|
if (chunkGraph.getModuleId(module) === null) {
|
|
if (weak) {
|
|
// only weak referenced modules don't get an id
|
|
// we can always emit an error emitting code here
|
|
return [
|
|
this.weakError({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
type: "statements"
|
|
}),
|
|
""
|
|
];
|
|
}
|
|
throw new Error(
|
|
`RuntimeTemplate.importStatement(): ${noModuleIdErrorMessage(
|
|
module,
|
|
chunkGraph
|
|
)}`
|
|
);
|
|
}
|
|
const moduleId = this.moduleId({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
weak
|
|
});
|
|
// Harmony imports may be wrapped in runtime-condition `if` blocks
|
|
// but referenced outside those blocks (e.g. by harmony reexport),
|
|
// so they must remain function-scoped (`var`) rather than
|
|
// block-scoped (`let`/`const`).
|
|
const optDeclaration = update ? "" : "var ";
|
|
|
|
const exportsType = module.getExportsType(
|
|
chunkGraph.moduleGraph,
|
|
/** @type {BuildMeta} */
|
|
(originModule.buildMeta).strictHarmonyModule
|
|
);
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
|
|
/** @type {string} */
|
|
let importContent;
|
|
|
|
const isModuleDeferred =
|
|
(dependency instanceof getHarmonyImportDependency() ||
|
|
dependency instanceof getImportDependency()) &&
|
|
ImportPhaseUtils.isDefer(dependency.phase) &&
|
|
!(/** @type {BuildMeta} */ (module.buildMeta).async);
|
|
|
|
if (isModuleDeferred) {
|
|
/** @type {Set<Module>} */
|
|
const outgoingAsyncModules = getOutgoingAsyncModules(moduleGraph, module);
|
|
|
|
importContent = `/* deferred harmony import */ ${optDeclaration}${importVar} = ${getOptimizedDeferredModule(
|
|
moduleId,
|
|
exportsType,
|
|
Array.from(outgoingAsyncModules, (mod) => chunkGraph.getModuleId(mod)),
|
|
getDeferredCycleModuleIds(
|
|
getDeferredCycleModules(moduleGraph, module),
|
|
(mod) => chunkGraph.getModuleId(mod)
|
|
),
|
|
runtimeRequirements
|
|
)};\n`;
|
|
|
|
return [importContent, ""];
|
|
}
|
|
importContent = `/* harmony import */ ${optDeclaration}${importVar} = ${RuntimeGlobals.require}(${moduleId});\n`;
|
|
|
|
if (exportsType === "dynamic") {
|
|
runtimeRequirements.add(RuntimeGlobals.compatGetDefaultExport);
|
|
return [
|
|
importContent,
|
|
`/* harmony import */ ${optDeclaration}${importVar}_default = /*#__PURE__*/${RuntimeGlobals.compatGetDefaultExport}(${importVar});\n`
|
|
];
|
|
}
|
|
return [importContent, ""];
|
|
}
|
|
|
|
/**
|
|
* Export from import.
|
|
* @template GenerateContext
|
|
* @param {object} options options
|
|
* @param {ModuleGraph} options.moduleGraph the module graph
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {Module} options.module the module
|
|
* @param {string} options.request the request
|
|
* @param {string | string[]} options.exportName the export name
|
|
* @param {Module} options.originModule the origin module
|
|
* @param {boolean | undefined} options.asiSafe true, if location is safe for ASI, a bracket can be emitted
|
|
* @param {boolean | undefined} options.isCall true, if expression will be called
|
|
* @param {boolean | null} options.callContext when false, call context will not be preserved
|
|
* @param {boolean} options.defaultInterop when true and accessing the default exports, interop code will be generated
|
|
* @param {string} options.importVar the identifier name of the import variable
|
|
* @param {InitFragment<GenerateContext>[]} options.initFragments init fragments will be added here
|
|
* @param {RuntimeSpec} options.runtime runtime for which this code will be generated
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {ModuleDependency} options.dependency module dependency
|
|
* @param {boolean=} options.mangleableNamespace true, when a whole-namespace value may use a decoupled namespace object that keeps the original export names
|
|
* @returns {string} expression
|
|
*/
|
|
exportFromImport({
|
|
moduleGraph,
|
|
chunkGraph,
|
|
module,
|
|
request,
|
|
exportName,
|
|
originModule,
|
|
asiSafe,
|
|
isCall,
|
|
callContext,
|
|
defaultInterop,
|
|
importVar,
|
|
initFragments,
|
|
runtime,
|
|
runtimeRequirements,
|
|
dependency,
|
|
mangleableNamespace = false
|
|
}) {
|
|
if (!module) {
|
|
return this.missingModule({
|
|
request
|
|
});
|
|
}
|
|
if (!Array.isArray(exportName)) {
|
|
exportName = exportName ? [exportName] : [];
|
|
}
|
|
const exportsType = module.getExportsType(
|
|
moduleGraph,
|
|
/** @type {BuildMeta} */
|
|
(originModule.buildMeta).strictHarmonyModule
|
|
);
|
|
|
|
const isModuleDeferred =
|
|
(dependency instanceof getHarmonyImportDependency() ||
|
|
dependency instanceof getImportDependency()) &&
|
|
ImportPhaseUtils.isDefer(dependency.phase) &&
|
|
!(/** @type {BuildMeta} */ (module.buildMeta).async);
|
|
|
|
if (defaultInterop) {
|
|
// when the defaultInterop is used (when a ESM imports a CJS module),
|
|
if (exportName.length > 0 && exportName[0] === "default") {
|
|
if (isModuleDeferred && exportsType !== "namespace") {
|
|
const exportsInfo = moduleGraph.getExportsInfo(module);
|
|
const name = exportName.slice(1);
|
|
const used = exportsInfo.getUsedName(name, runtime);
|
|
if (!used) {
|
|
const comment = Template.toNormalComment(
|
|
`unused export ${propertyAccess(exportName)}`
|
|
);
|
|
return `${comment} undefined`;
|
|
}
|
|
if (used instanceof InlinedUsedName) {
|
|
throw new Error(
|
|
"Can't inline the exports of defer imported module"
|
|
);
|
|
}
|
|
const access = `${importVar}.a${propertyAccess(
|
|
Array.isArray(used) ? used : [used]
|
|
)}`;
|
|
if (isCall || asiSafe === undefined) {
|
|
return access;
|
|
}
|
|
return asiSafe ? `(${access})` : `;(${access})`;
|
|
}
|
|
// accessing the .default property is same thing as `require()` the module.
|
|
|
|
// For example:
|
|
// import mod from "cjs"; mod.default.x;
|
|
// is translated to
|
|
// var mod = require("cjs"); mod.x;
|
|
switch (exportsType) {
|
|
case "dynamic":
|
|
if (isCall) {
|
|
return `${importVar}_default()${propertyAccess(exportName, 1)}`;
|
|
}
|
|
return asiSafe
|
|
? `(${importVar}_default()${propertyAccess(exportName, 1)})`
|
|
: asiSafe === false
|
|
? `;(${importVar}_default()${propertyAccess(exportName, 1)})`
|
|
: `${importVar}_default.a${propertyAccess(exportName, 1)}`;
|
|
|
|
case "default-only":
|
|
case "default-with-named":
|
|
exportName = exportName.slice(1);
|
|
break;
|
|
}
|
|
} else if (exportName.length > 0) {
|
|
// the property used is not .default.
|
|
// For example:
|
|
// import * as ns from "cjs"; cjs.prop;
|
|
if (exportsType === "default-only") {
|
|
// in the strictest case, it is a runtime error (e.g. NodeJS behavior of CJS-ESM interop).
|
|
return `/* non-default import from non-esm module */undefined${propertyAccess(
|
|
exportName,
|
|
1
|
|
)}`;
|
|
} else if (
|
|
exportsType !== "namespace" &&
|
|
exportName[0] === "__esModule"
|
|
) {
|
|
return "/* __esModule */true";
|
|
}
|
|
} else if (isModuleDeferred) {
|
|
// now exportName.length is 0
|
|
// fall through to the end of this function, create the namespace there.
|
|
} else if (
|
|
exportsType === "default-only" ||
|
|
exportsType === "default-with-named"
|
|
) {
|
|
// now exportName.length is 0, which means the namespace object is used in an unknown way
|
|
// for example:
|
|
// import * as ns from "cjs"; console.log(ns);
|
|
// we will need to createFakeNamespaceObject that simulates ES Module namespace object
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
initFragments.push(
|
|
new InitFragment(
|
|
`${this.renderLet()} ${importVar}_namespace_cache;\n`,
|
|
InitFragment.STAGE_CONSTANTS,
|
|
-1,
|
|
`${importVar}_namespace_cache`
|
|
)
|
|
);
|
|
return `/*#__PURE__*/ ${
|
|
asiSafe ? "" : asiSafe === false ? ";" : "Object"
|
|
}(${importVar}_namespace_cache || (${importVar}_namespace_cache = ${
|
|
RuntimeGlobals.createFakeNamespaceObject
|
|
}(${importVar}${exportsType === "default-only" ? "" : ", 2"})))`;
|
|
}
|
|
}
|
|
|
|
if (exportName.length > 0) {
|
|
const exportsInfo = moduleGraph.getExportsInfo(module);
|
|
// in some case the exported item is renamed (get this by getUsedName). for example,
|
|
// x.default might be emitted as x.Z (default is renamed to Z)
|
|
const used = exportsInfo.getUsedName(exportName, runtime);
|
|
if (!used) {
|
|
const comment = Template.toNormalComment(
|
|
`unused export ${propertyAccess(exportName)}`
|
|
);
|
|
return `${comment} undefined`;
|
|
}
|
|
if (used instanceof InlinedUsedName) {
|
|
return used.render(
|
|
Template.toNormalComment(
|
|
`inlined export ${propertyAccess(exportName)}`
|
|
)
|
|
);
|
|
}
|
|
const comment = equals(used, exportName)
|
|
? ""
|
|
: `${Template.toNormalComment(propertyAccess(exportName))} `;
|
|
const access = `${importVar}${
|
|
isModuleDeferred ? ".a" : ""
|
|
}${comment}${propertyAccess(Array.isArray(used) ? used : [used])}`;
|
|
if (isCall && callContext === false) {
|
|
return asiSafe
|
|
? `(0,${access})`
|
|
: asiSafe === false
|
|
? `;(0,${access})`
|
|
: `/*#__PURE__*/Object(${access})`;
|
|
}
|
|
return access;
|
|
}
|
|
if (isModuleDeferred) {
|
|
initFragments.push(
|
|
new InitFragment(
|
|
`${this.renderLet()} ${importVar}_deferred_namespace_cache;\n`,
|
|
InitFragment.STAGE_CONSTANTS,
|
|
-1,
|
|
`${importVar}_deferred_namespace_cache`
|
|
)
|
|
);
|
|
|
|
runtimeRequirements.add(RuntimeGlobals.makeDeferredNamespaceObject);
|
|
const id = chunkGraph.getModuleId(module);
|
|
const type = getMakeDeferredNamespaceModeFromExportsType(exportsType);
|
|
const init = `${
|
|
RuntimeGlobals.makeDeferredNamespaceObject
|
|
}(${JSON.stringify(id)}, ${type})`;
|
|
|
|
return `/*#__PURE__*/ ${
|
|
asiSafe ? "" : asiSafe === false ? ";" : "Object"
|
|
}(${importVar}_deferred_namespace_cache || (${importVar}_deferred_namespace_cache = ${init}))`;
|
|
}
|
|
// The whole namespace object is used as a value. If the module's exports
|
|
// were mangled, importVar's keys are the mangled names, so we materialize
|
|
// a decoupled namespace object that exposes the original names.
|
|
if (
|
|
exportsType === "namespace" &&
|
|
mangleableNamespace &&
|
|
this.compilation &&
|
|
this.compilation.options.optimization.mangleExports
|
|
) {
|
|
const materialized = this._materializedNamespaceObject({
|
|
moduleGraph,
|
|
module,
|
|
importVar,
|
|
initFragments,
|
|
runtime,
|
|
runtimeRequirements
|
|
});
|
|
if (materialized !== undefined) return materialized;
|
|
}
|
|
// if we hit here, the importVar is either
|
|
// - already a ES module namespace object
|
|
// - or imported by a way that does not need interop.
|
|
return importVar;
|
|
}
|
|
|
|
/**
|
|
* Materializes a namespace object that keeps the original export names while
|
|
* the module's own exports are mangled. Returns undefined when no export was
|
|
* mangled (then the raw namespace object can be used as-is).
|
|
* @template GenerateContext
|
|
* @param {object} options options
|
|
* @param {ModuleGraph} options.moduleGraph the module graph
|
|
* @param {Module} options.module the imported module
|
|
* @param {string} options.importVar the import variable referencing the module
|
|
* @param {InitFragment<GenerateContext>[]} options.initFragments target array for init fragments
|
|
* @param {RuntimeSpec} options.runtime the runtime
|
|
* @param {RuntimeRequirements} options.runtimeRequirements runtime requirements
|
|
* @returns {string | undefined} expression of the materialized namespace object, or undefined
|
|
*/
|
|
_materializedNamespaceObject({
|
|
moduleGraph,
|
|
module,
|
|
importVar,
|
|
initFragments,
|
|
runtime,
|
|
runtimeRequirements
|
|
}) {
|
|
const exportsInfo = moduleGraph.getExportsInfo(module);
|
|
/** @type {string[]} */
|
|
const definitions = [];
|
|
let mangled = false;
|
|
for (const exportInfo of exportsInfo.orderedExports) {
|
|
if (exportInfo.provided === false) continue;
|
|
const used = exportsInfo.getUsedName([exportInfo.name], runtime);
|
|
if (!used) continue;
|
|
if (used instanceof InlinedUsedName) {
|
|
// An inlined export isn't reachable by name on the raw exports object,
|
|
// so the decoupled object must expose the inlined value directly.
|
|
mangled = true;
|
|
definitions.push(
|
|
`${propertyName(exportInfo.name)}: ${this.returningFunction(
|
|
used.render(
|
|
Template.toNormalComment(
|
|
`inlined export ${propertyAccess([exportInfo.name])}`
|
|
)
|
|
)
|
|
)}`
|
|
);
|
|
continue;
|
|
}
|
|
if (used[used.length - 1] !== exportInfo.name) mangled = true;
|
|
definitions.push(
|
|
`${propertyName(exportInfo.name)}: ${this.returningFunction(
|
|
`${importVar}${propertyAccess(/** @type {string[]} */ (used))}`
|
|
)}`
|
|
);
|
|
}
|
|
if (!mangled) return;
|
|
const name = `${importVar}_namespace_object`;
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
runtimeRequirements.add(RuntimeGlobals.makeNamespaceObject);
|
|
runtimeRequirements.add(RuntimeGlobals.definePropertyGetters);
|
|
initFragments.push(
|
|
new InitFragment(
|
|
`var ${name} = {};\n${RuntimeGlobals.makeNamespaceObject}(${name});\n${
|
|
RuntimeGlobals.definePropertyGetters
|
|
}(${name}, {\n\t${definitions.join(",\n\t")}\n});\n`,
|
|
InitFragment.STAGE_PROVIDES,
|
|
0,
|
|
name
|
|
)
|
|
);
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* Returns expression.
|
|
* @param {object} options options
|
|
* @param {AsyncDependenciesBlock | undefined} options.block the async block
|
|
* @param {string} options.message the message
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {Module=} options.originModule the module the `import()` is emitted into
|
|
* @returns {string} expression
|
|
*/
|
|
blockPromise({
|
|
block,
|
|
message,
|
|
chunkGraph,
|
|
runtimeRequirements,
|
|
originModule
|
|
}) {
|
|
if (!block) {
|
|
const comment = this.comment({
|
|
message
|
|
});
|
|
return `Promise.resolve(${comment.trim()})`;
|
|
}
|
|
const chunkGroup = chunkGraph.getBlockChunkGroup(block);
|
|
if (!chunkGroup || chunkGroup.chunks.length === 0) {
|
|
const comment = this.comment({
|
|
message
|
|
});
|
|
return `Promise.resolve(${comment.trim()})`;
|
|
}
|
|
const chunks = chunkGroup.chunks.filter(
|
|
(chunk) => !chunk.hasRuntime() && chunk.id !== null
|
|
);
|
|
const comment = this.comment({
|
|
message,
|
|
chunkName: block.chunkName
|
|
});
|
|
// A `fetchPriority` hint rides on the runtime `ensureChunk(id, priority)` call;
|
|
// the analyzable literal `import()` can't carry it, so keep the runtime form.
|
|
const fetchPriority = chunkGroup.options.fetchPriority;
|
|
if (chunks.length === 1) {
|
|
const analyzable = fetchPriority
|
|
? null
|
|
: this._analyzableChunkImport(
|
|
chunks[0],
|
|
comment,
|
|
runtimeRequirements,
|
|
originModule,
|
|
chunkGraph
|
|
);
|
|
if (analyzable !== null) {
|
|
return analyzable;
|
|
}
|
|
const chunkId = JSON.stringify(chunks[0].id);
|
|
runtimeRequirements.add(RuntimeGlobals.ensureChunk);
|
|
|
|
if (fetchPriority) {
|
|
runtimeRequirements.add(RuntimeGlobals.hasFetchPriority);
|
|
}
|
|
|
|
return `${RuntimeGlobals.ensureChunk}(${comment}${chunkId}${
|
|
fetchPriority ? `, ${JSON.stringify(fetchPriority)}` : ""
|
|
})`;
|
|
} else if (chunks.length > 0) {
|
|
if (fetchPriority) {
|
|
runtimeRequirements.add(RuntimeGlobals.hasFetchPriority);
|
|
}
|
|
|
|
let needEnsureChunk = false;
|
|
/**
|
|
* Analyzable `import()` for a solely-owned JS chunk, else runtime ensureChunk.
|
|
* @param {Chunk} chunk chunk
|
|
* @returns {string} require chunk id code
|
|
*/
|
|
const requireChunkId = (chunk) => {
|
|
const analyzable = fetchPriority
|
|
? null
|
|
: this._analyzableChunkImport(
|
|
chunk,
|
|
"",
|
|
runtimeRequirements,
|
|
originModule,
|
|
chunkGraph
|
|
);
|
|
if (analyzable !== null) return analyzable;
|
|
needEnsureChunk = true;
|
|
return `${RuntimeGlobals.ensureChunk}(${JSON.stringify(chunk.id)}${
|
|
fetchPriority ? `, ${JSON.stringify(fetchPriority)}` : ""
|
|
})`;
|
|
};
|
|
const items = chunks.map(requireChunkId);
|
|
if (needEnsureChunk) {
|
|
runtimeRequirements.add(RuntimeGlobals.ensureChunk);
|
|
}
|
|
return `Promise.all(${comment.trim()}[${items.join(", ")}])`;
|
|
}
|
|
return `Promise.resolve(${comment.trim()})`;
|
|
}
|
|
|
|
/**
|
|
* For ESM module output, load a single statically-named chunk through the
|
|
* `analyzableChunkImport` helper — a literal `import("./chunk.js")` other bundlers
|
|
* and webpack itself can follow, wrapped to keep `ensureChunk` timing and deduplication.
|
|
* Returns `null` to fall back to the runtime `ensureChunk` form.
|
|
* @param {Chunk} chunk the chunk to load
|
|
* @param {string} comment leading comment (chunk name / message)
|
|
* @param {RuntimeRequirements} runtimeRequirements runtime requirements
|
|
* @param {Module=} originModule the module the `import()` is emitted into
|
|
* @param {ChunkGraph=} chunkGraph the chunk graph
|
|
* @returns {string | null} the import expression, or `null`
|
|
*/
|
|
_analyzableChunkImport(
|
|
chunk,
|
|
comment,
|
|
runtimeRequirements,
|
|
originModule,
|
|
chunkGraph
|
|
) {
|
|
const { outputOptions } = this;
|
|
if (
|
|
!outputOptions.module ||
|
|
outputOptions.chunkFormat !== "module" ||
|
|
outputOptions.importFunctionName !== "import" ||
|
|
chunk.id === null ||
|
|
!originModule ||
|
|
!chunkGraph
|
|
) {
|
|
return null;
|
|
}
|
|
// HMR wraps `ensureChunk` (`.e`) to track in-flight loads and relies on it being
|
|
// present in the runtime; the analyzable `import()` (`.ei`) replaces `.e` and would
|
|
// leave a lazy-compilation proxy's own `.e` call undefined, so keep the runtime form.
|
|
// A runtime `__webpack_public_path__` override likewise can't reach a baked literal.
|
|
if (
|
|
this.compilation.dependencyFactories.has(
|
|
getModuleHotAcceptDependency()
|
|
) ||
|
|
getAPIPlugin().usesRuntimePublicPathOverride(this.compilation)
|
|
) {
|
|
return null;
|
|
}
|
|
// A worker entry loads its own chunks through the worker runtime; keep that path.
|
|
for (const originChunk of chunkGraph.getModuleChunksIterable(
|
|
originModule
|
|
)) {
|
|
const entryOptions = originChunk.getEntryOptions();
|
|
if (entryOptions && entryOptions.worker) {
|
|
return null;
|
|
}
|
|
}
|
|
// Only a chunk that is loaded solely through this `import()` and holds pure JS:
|
|
// a shared chunk (splitChunks / module federation) or one with css/wasm/other
|
|
// assets needs the runtime's deduplication and per-type loaders, so keep it.
|
|
if (chunk.getNumberOfGroups() !== 1) {
|
|
return null;
|
|
}
|
|
// Prefetch/preload children (incl. CSS-only preload) are injected by the runtime
|
|
// `.f` handlers when the chunk loads, which the analyzable `import()` bypasses —
|
|
// keep the runtime form for them.
|
|
if (
|
|
chunk.hasChildByOrder(chunkGraph, "prefetch", true) ||
|
|
chunk.hasChildByOrder(chunkGraph, "preload", true) ||
|
|
chunk.hasChildByOrder(chunkGraph, "cssPreload", true)
|
|
) {
|
|
return null;
|
|
}
|
|
for (const module of chunkGraph.getChunkModulesIterable(chunk)) {
|
|
// Module federation (remote/shared/provide) loads through its own runtime.
|
|
if (FEDERATION_MODULE_TYPES.has(module.type)) {
|
|
return null;
|
|
}
|
|
for (const type of chunkGraph.getModuleSourceTypes(module)) {
|
|
if (type !== JAVASCRIPT_TYPE && type !== RUNTIME_TYPE) {
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
// Relative to the consuming chunk (`import.meta.url`) for `auto`, else an
|
|
// absolute publicPath prefix.
|
|
const specifier = this._getAnalyzableChunkSpecifier(
|
|
undefined,
|
|
chunk,
|
|
originModule,
|
|
chunkGraph
|
|
);
|
|
// `import()` needs a resolvable specifier — relative (`./`, `../`), absolute (`/`)
|
|
// or a URL scheme. A bare one (empty/relative publicPath) is treated as a package,
|
|
// so keep the runtime form. (`new URL(...)` callers accept bare, resolving vs base.)
|
|
if (
|
|
specifier === null ||
|
|
!/^"(?:\.{0,2}\/|[a-zA-Z][\w+.-]*:)/.test(specifier)
|
|
) {
|
|
return null;
|
|
}
|
|
runtimeRequirements.add(RuntimeGlobals.analyzableChunkImport);
|
|
// Drop-in for `ensureChunk(id)`: the literal `import()` can be statically
|
|
// followed, the helper keeps webpack's install timing and deduplication.
|
|
return `${RuntimeGlobals.analyzableChunkImport}(${JSON.stringify(
|
|
chunk.id
|
|
)}, () => import(${comment}${specifier}))`;
|
|
}
|
|
|
|
/**
|
|
* Computes the `../`-path from the consuming module's chunk(s) back to the output
|
|
* root, so a chunk or asset can be referenced relative to `import.meta.url`. Returns
|
|
* `null` when the module lives in chunks of different depths (no single path works).
|
|
* @param {Module} module the consuming module
|
|
* @param {ChunkGraph} chunkGraph the chunk graph
|
|
* @returns {string | null} relative undo path, or `null` when ambiguous
|
|
*/
|
|
_getModuleUndoPath(module, chunkGraph) {
|
|
const { compilation } = this;
|
|
const { outputOptions } = compilation;
|
|
const outputPath = /** @type {string} */ (outputOptions.path);
|
|
/** @type {string | null} */
|
|
let result = null;
|
|
let found = false;
|
|
for (const chunk of chunkGraph.getModuleChunksIterable(module)) {
|
|
const template = getJavascriptModulesPlugin().getChunkFilenameTemplate(
|
|
chunk,
|
|
outputOptions
|
|
);
|
|
const chunkName = compilation.getPath(
|
|
// Hashes aren't known during code generation and only sit in the basename
|
|
// (never a directory), so neutralize them — only the `../` depth matters.
|
|
typeof template === "string"
|
|
? template.replace(HASH_IN_FILENAME_GLOBAL, "x")
|
|
: template,
|
|
{ chunk, contentHashType: JAVASCRIPT_TYPE }
|
|
);
|
|
const undo = getUndoPath(chunkName, outputPath, true);
|
|
if (!found) {
|
|
result = undo;
|
|
found = true;
|
|
} else if (result !== undo) {
|
|
return null;
|
|
}
|
|
}
|
|
return found ? result : null;
|
|
}
|
|
|
|
/**
|
|
* Static literal specifier (already quoted) for a `new URL(<here>, import.meta.url)`
|
|
* or `import(<here>)` pointing at `chunk`'s JS file, or `null` when it can't be known
|
|
* statically — a content hash in the filename, or a dynamic/templated publicPath.
|
|
* @param {string | undefined} overridePublicPath per-dependency public path (wins over `output.publicPath`)
|
|
* @param {Chunk} chunk the chunk to reference
|
|
* @param {Module} consumingModule the module the reference is emitted into
|
|
* @param {ChunkGraph} chunkGraph the chunk graph
|
|
* @returns {string | null} a JS string literal, or `null` to fall back to the runtime form
|
|
*/
|
|
_getAnalyzableChunkSpecifier(
|
|
overridePublicPath,
|
|
chunk,
|
|
consumingModule,
|
|
chunkGraph
|
|
) {
|
|
const { compilation } = this;
|
|
const { outputOptions } = compilation;
|
|
const filenameTemplate =
|
|
getJavascriptModulesPlugin().getChunkFilenameTemplate(
|
|
chunk,
|
|
outputOptions
|
|
);
|
|
if (
|
|
typeof filenameTemplate !== "string" ||
|
|
HASH_IN_FILENAME.test(filenameTemplate)
|
|
) {
|
|
return null;
|
|
}
|
|
const filename = compilation.getPath(filenameTemplate, {
|
|
chunk,
|
|
contentHashType: JAVASCRIPT_TYPE
|
|
});
|
|
if (overridePublicPath) {
|
|
return overridePublicPath.includes("[")
|
|
? null
|
|
: toJsStringLiteral(overridePublicPath + filename);
|
|
}
|
|
const { publicPath } = outputOptions;
|
|
if (publicPath === "auto") {
|
|
const undo = this._getModuleUndoPath(consumingModule, chunkGraph);
|
|
return undo === null ? null : toJsStringLiteral(undo + filename);
|
|
}
|
|
if (typeof publicPath === "string" && !publicPath.includes("[")) {
|
|
return toJsStringLiteral(publicPath + filename);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Async module factory.
|
|
* @param {object} options options
|
|
* @param {AsyncDependenciesBlock} options.block the async block
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} expression
|
|
*/
|
|
asyncModuleFactory({ block, chunkGraph, runtimeRequirements, request }) {
|
|
const dep = block.dependencies[0];
|
|
const module = chunkGraph.moduleGraph.getModule(dep);
|
|
const ensureChunk = this.blockPromise({
|
|
block,
|
|
message: "",
|
|
chunkGraph,
|
|
runtimeRequirements
|
|
});
|
|
const factory = this.returningFunction(
|
|
this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
runtimeRequirements
|
|
})
|
|
);
|
|
return this.returningFunction(
|
|
ensureChunk.startsWith("Promise.resolve(")
|
|
? `${factory}`
|
|
: `${ensureChunk}.then(${this.returningFunction(factory)})`
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Sync module factory.
|
|
* @param {object} options options
|
|
* @param {Dependency} options.dependency the dependency
|
|
* @param {ChunkGraph} options.chunkGraph the chunk graph
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @param {string=} options.request request string used originally
|
|
* @returns {string} expression
|
|
*/
|
|
syncModuleFactory({ dependency, chunkGraph, runtimeRequirements, request }) {
|
|
const module = chunkGraph.moduleGraph.getModule(dependency);
|
|
const factory = this.returningFunction(
|
|
this.moduleRaw({
|
|
module,
|
|
chunkGraph,
|
|
request,
|
|
runtimeRequirements
|
|
})
|
|
);
|
|
return this.returningFunction(factory);
|
|
}
|
|
|
|
/**
|
|
* Define es module flag statement.
|
|
* @param {object} options options
|
|
* @param {string} options.exportsArgument the name of the exports object
|
|
* @param {RuntimeRequirements} options.runtimeRequirements if set, will be filled with runtime requirements
|
|
* @returns {string} statement
|
|
*/
|
|
defineEsModuleFlagStatement({ exportsArgument, runtimeRequirements }) {
|
|
runtimeRequirements.add(RuntimeGlobals.makeNamespaceObject);
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
return `${RuntimeGlobals.makeNamespaceObject}(${exportsArgument});\n`;
|
|
}
|
|
}
|
|
|
|
module.exports = RuntimeTemplate;
|