webpack/lib/index.js

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

"use strict";

const util = require("util");
const memorize = require("./util/memorize");

/** @typedef {import("../declarations/WebpackOptions").WebpackOptions} Configuration */
/** @typedef {import("../declarations/WebpackOptions").WebpackPluginFunction} WebpackPluginFunction */
/** @typedef {import("../declarations/WebpackOptions").WebpackPluginInstance} WebpackPluginInstance */
/** @typedef {import("./Parser").ParserState} ParserState */

/**
 * @template {Function} T
 * @param {function(): T} factory factory function
 * @returns {T} function
 */
const lazyFunction = factory => {
	const fac = memorize(factory);
	const f = /** @type {any} */ ((...args) => {
		return fac()(...args);
	});
	return /** @type {T} */ (f);
};

/**
 * @template A
 * @template B
 * @param {A} obj input a
 * @param {B} exports input b
 * @returns {A & B} merged
 */
const mergeExports = (obj, exports) => {
	const descriptors = Object.getOwnPropertyDescriptors(exports);
	for (const name of Object.keys(descriptors)) {
		const descriptor = descriptors[name];
		if (descriptor.get) {
			const fn = descriptor.get;
			Object.defineProperty(obj, name, {
				configurable: false,
				enumerable: true,
				get: memorize(fn)
			});
		} else if (typeof descriptor.value === "object") {
			Object.defineProperty(obj, name, {
				configurable: false,
				enumerable: true,
				writable: false,
				value: mergeExports({}, descriptor.value)
			});
		} else {
			throw new Error(
				"Exposed values must be either a getter or an nested object"
			);
		}
	}
	return /** @type {A & B} */ (Object.freeze(obj));
};

const fn = lazyFunction(() => require("./webpack"));
module.exports = mergeExports(fn, {
	get webpack() {
		return require("./webpack");
	},
	get validate() {
		const validateSchema = require("./validateSchema");
		const webpackOptionsSchema = require("../schemas/WebpackOptions.json");
		return options => validateSchema(webpackOptionsSchema, options);
	},
	get validateSchema() {
		const validateSchema = require("./validateSchema");
		return validateSchema;
	},
	get version() {
		return /** @type {string} */ (require("../package.json").version);
	},

	get cli() {
		return require("./cli");
	},
	get AutomaticPrefetchPlugin() {
		return require("./AutomaticPrefetchPlugin");
	},
	get BannerPlugin() {
		return require("./BannerPlugin");
	},
	get Cache() {
		return require("./Cache");
	},
	get Chunk() {
		return require("./Chunk");
	},
	get ChunkGraph() {
		return require("./ChunkGraph");
	},
	get Compilation() {
		return require("./Compilation");
	},
	get Compiler() {
		return require("./Compiler");
	},
	get ContextExclusionPlugin() {
		return require("./ContextExclusionPlugin");
	},
	get ContextReplacementPlugin() {
		return require("./ContextReplacementPlugin");
	},
	get DefinePlugin() {
		return require("./DefinePlugin");
	},
	get DelegatedPlugin() {
		return require("./DelegatedPlugin");
	},
	get Dependency() {
		return require("./Dependency");
	},
	get DllPlugin() {
		return require("./DllPlugin");
	},
	get DllReferencePlugin() {
		return require("./DllReferencePlugin");
	},
	get EntryPlugin() {
		return require("./EntryPlugin");
	},
	get EnvironmentPlugin() {
		return require("./EnvironmentPlugin");
	},
	get EvalDevToolModulePlugin() {
		return require("./EvalDevToolModulePlugin");
	},
	get EvalSourceMapDevToolPlugin() {
		return require("./EvalSourceMapDevToolPlugin");
	},
	get ExternalModule() {
		return require("./ExternalModule");
	},
	get ExternalsPlugin() {
		return require("./ExternalsPlugin");
	},
	get Generator() {
		return require("./Generator");
	},
	get HotModuleReplacementPlugin() {
		return require("./HotModuleReplacementPlugin");
	},
	get IgnorePlugin() {
		return require("./IgnorePlugin");
	},
	get JavascriptModulesPlugin() {
		return util.deprecate(
			() => require("./javascript/JavascriptModulesPlugin"),
			"webpack.JavascriptModulesPlugin has moved to webpack.javascript.JavascriptModulesPlugin",
			"DEP_WEBPACK_JAVASCRIPT_MODULES_PLUGIN"
		)();
	},
	get LibManifestPlugin() {
		return require("./LibManifestPlugin");
	},
	get LibraryTemplatePlugin() {
		return util.deprecate(
			() => require("./LibraryTemplatePlugin"),
			"webpack.LibraryTemplatePlugin is deprecated and has been replaced by compilation.outputOptions.library or compilation.addEntry + passing a library option",
			"DEP_WEBPACK_LIBRARY_TEMPLATE_PLUGIN"
		)();
	},
	get LoaderOptionsPlugin() {
		return require("./LoaderOptionsPlugin");
	},
	get LoaderTargetPlugin() {
		return require("./LoaderTargetPlugin");
	},
	get Module() {
		return require("./Module");
	},
	get ModuleFilenameHelpers() {
		return require("./ModuleFilenameHelpers");
	},
	get ModuleGraph() {
		return require("./ModuleGraph");
	},
	get NoEmitOnErrorsPlugin() {
		return require("./NoEmitOnErrorsPlugin");
	},
	get NormalModule() {
		return require("./NormalModule");
	},
	get NormalModuleReplacementPlugin() {
		return require("./NormalModuleReplacementPlugin");
	},
	get MultiCompiler() {
		return require("./MultiCompiler");
	},
	get Parser() {
		return require("./Parser");
	},
	get PrefetchPlugin() {
		return require("./PrefetchPlugin");
	},
	get ProgressPlugin() {
		return require("./ProgressPlugin");
	},
	get ProvidePlugin() {
		return require("./ProvidePlugin");
	},
	get RuntimeGlobals() {
		return require("./RuntimeGlobals");
	},
	get RuntimeModule() {
		return require("./RuntimeModule");
	},
	get SingleEntryPlugin() {
		return util.deprecate(
			() => require("./EntryPlugin"),
			"SingleEntryPlugin was renamed to EntryPlugin",
			"DEP_WEBPACK_SINGLE_ENTRY_PLUGIN"
		)();
	},
	get SourceMapDevToolPlugin() {
		return require("./SourceMapDevToolPlugin");
	},
	get Stats() {
		return require("./Stats");
	},
	get Template() {
		return require("./Template");
	},
	get WatchIgnorePlugin() {
		return require("./WatchIgnorePlugin");
	},
	get WebpackOptionsApply() {
		return require("./WebpackOptionsApply");
	},
	get WebpackOptionsDefaulter() {
		return util.deprecate(
			() => require("./WebpackOptionsDefaulter"),
			"webpack.WebpackOptionsDefaulter is deprecated and has been replaced by webpack.config.getNormalizedWebpackOptions and webpack.config.applyWebpackOptionsDefaults",
			"DEP_WEBPACK_OPTIONS_DEFAULTER"
		)();
	},
	// TODO webpack 6 deprecate
	get WebpackOptionsValidationError() {
		return require("schema-utils").ValidationError;
	},
	get ValidationError() {
		return require("schema-utils").ValidationError;
	},

	cache: {
		get MemoryCachePlugin() {
			return require("./cache/MemoryCachePlugin");
		}
	},

	config: {
		get getNormalizedWebpackOptions() {
			return require("./config/normalization").getNormalizedWebpackOptions;
		},
		get applyWebpackOptionsDefaults() {
			return require("./config/defaults").applyWebpackOptionsDefaults;
		}
	},

	ids: {
		get ChunkModuleIdRangePlugin() {
			return require("./ids/ChunkModuleIdRangePlugin");
		},
		get NaturalModuleIdsPlugin() {
			return require("./ids/NaturalModuleIdsPlugin");
		},
		get OccurrenceModuleIdsPlugin() {
			return require("./ids/OccurrenceModuleIdsPlugin");
		},
		get NamedModuleIdsPlugin() {
			return require("./ids/NamedModuleIdsPlugin");
		},
		get DeterministicChunkIdsPlugin() {
			return require("./ids/DeterministicChunkIdsPlugin");
		},
		get DeterministicModuleIdsPlugin() {
			return require("./ids/DeterministicModuleIdsPlugin");
		},
		get NamedChunkIdsPlugin() {
			return require("./ids/NamedChunkIdsPlugin");
		},
		get OccurrenceChunkIdsPlugin() {
			return require("./ids/OccurrenceChunkIdsPlugin");
		},
		get HashedModuleIdsPlugin() {
			return require("./ids/HashedModuleIdsPlugin");
		}
	},

	javascript: {
		get JavascriptModulesPlugin() {
			return require("./javascript/JavascriptModulesPlugin");
		}
	},

	optimize: {
		get AggressiveMergingPlugin() {
			return require("./optimize/AggressiveMergingPlugin");
		},
		get AggressiveSplittingPlugin() {
			return util.deprecate(
				() => require("./optimize/AggressiveSplittingPlugin"),
				"AggressiveSplittingPlugin is deprecated in favor of SplitChunksPlugin",
				"DEP_WEBPACK_AGGRESSIVE_SPLITTING_PLUGIN"
			)();
		},
		get LimitChunkCountPlugin() {
			return require("./optimize/LimitChunkCountPlugin");
		},
		get MinChunkSizePlugin() {
			return require("./optimize/MinChunkSizePlugin");
		},
		get ModuleConcatenationPlugin() {
			return require("./optimize/ModuleConcatenationPlugin");
		},
		get RuntimeChunkPlugin() {
			return require("./optimize/RuntimeChunkPlugin");
		},
		get SideEffectsFlagPlugin() {
			return require("./optimize/SideEffectsFlagPlugin");
		},
		get SplitChunksPlugin() {
			return require("./optimize/SplitChunksPlugin");
		}
	},

	web: {
		get FetchCompileWasmPlugin() {
			return require("./web/FetchCompileWasmPlugin");
		},
		get JsonpTemplatePlugin() {
			return require("./web/JsonpTemplatePlugin");
		}
	},

	webworker: {
		get WebWorkerTemplatePlugin() {
			return require("./webworker/WebWorkerTemplatePlugin");
		}
	},

	node: {
		get NodeEnvironmentPlugin() {
			return require("./node/NodeEnvironmentPlugin");
		},
		get NodeTemplatePlugin() {
			return require("./node/NodeTemplatePlugin");
		},
		get ReadFileCompileWasmPlugin() {
			return require("./node/ReadFileCompileWasmPlugin");
		}
	},

	wasm: {
		get AsyncWebAssemblyModulesPlugin() {
			return require("./wasm-async/AsyncWebAssemblyModulesPlugin");
		}
	},

	library: {
		get AbstractLibraryPlugin() {
			return require("./library/AbstractLibraryPlugin");
		},
		get EnableLibraryPlugin() {
			return require("./library/EnableLibraryPlugin");
		}
	},

	debug: {
		get ProfilingPlugin() {
			return require("./debug/ProfilingPlugin");
		}
	},

	util: {
		get createHash() {
			return require("./util/createHash");
		},
		get comparators() {
			return require("./util/comparators");
		},
		get serialization() {
			return require("./util/serialization");
		}
	}
});