webpack/lib/dependencies/AMDPlugin.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

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

"use strict";

const RuntimeGlobals = require("../RuntimeGlobals");
const {
	approve,
	evaluateToIdentifier,
	evaluateToString,
	toConstantDependency
} = require("../javascript/JavascriptParserHelpers");

const AMDDefineDependency = require("./AMDDefineDependency");
const AMDDefineDependencyParserPlugin = require("./AMDDefineDependencyParserPlugin");
const AMDRequireArrayDependency = require("./AMDRequireArrayDependency");
const AMDRequireContextDependency = require("./AMDRequireContextDependency");
const AMDRequireDependenciesBlockParserPlugin = require("./AMDRequireDependenciesBlockParserPlugin");
const AMDRequireDependency = require("./AMDRequireDependency");
const AMDRequireItemDependency = require("./AMDRequireItemDependency");
const {
	AMDDefineRuntimeModule,
	AMDOptionsRuntimeModule
} = require("./AMDRuntimeModules");
const ConstDependency = require("./ConstDependency");
const LocalModuleDependency = require("./LocalModuleDependency");
const UnsupportedDependency = require("./UnsupportedDependency");

/** @typedef {import("../../declarations/WebpackOptions").ModuleOptionsNormalized} ModuleOptions */
/** @typedef {import("../Compiler")} Compiler */

class AMDPlugin {
	/**
	 * @param {Record<string, any>} amdOptions the AMD options
	 */
	constructor(amdOptions) {
		this.amdOptions = amdOptions;
	}

	/**
	 * Apply the plugin
	 * @param {Compiler} compiler the compiler instance
	 * @returns {void}
	 */
	apply(compiler) {
		const amdOptions = this.amdOptions;
		compiler.hooks.compilation.tap(
			"AMDPlugin",
			(compilation, { contextModuleFactory, normalModuleFactory }) => {
				compilation.dependencyTemplates.set(
					AMDRequireDependency,
					new AMDRequireDependency.Template()
				);

				compilation.dependencyFactories.set(
					AMDRequireItemDependency,
					normalModuleFactory
				);
				compilation.dependencyTemplates.set(
					AMDRequireItemDependency,
					new AMDRequireItemDependency.Template()
				);

				compilation.dependencyTemplates.set(
					AMDRequireArrayDependency,
					new AMDRequireArrayDependency.Template()
				);

				compilation.dependencyFactories.set(
					AMDRequireContextDependency,
					contextModuleFactory
				);
				compilation.dependencyTemplates.set(
					AMDRequireContextDependency,
					new AMDRequireContextDependency.Template()
				);

				compilation.dependencyTemplates.set(
					AMDDefineDependency,
					new AMDDefineDependency.Template()
				);

				compilation.dependencyTemplates.set(
					UnsupportedDependency,
					new UnsupportedDependency.Template()
				);

				compilation.dependencyTemplates.set(
					LocalModuleDependency,
					new LocalModuleDependency.Template()
				);

				compilation.hooks.runtimeRequirementInModule
					.for(RuntimeGlobals.amdDefine)
					.tap("AMDPlugin", (module, set) => {
						set.add(RuntimeGlobals.require);
					});

				compilation.hooks.runtimeRequirementInModule
					.for(RuntimeGlobals.amdOptions)
					.tap("AMDPlugin", (module, set) => {
						set.add(RuntimeGlobals.requireScope);
					});

				compilation.hooks.runtimeRequirementInTree
					.for(RuntimeGlobals.amdDefine)
					.tap("AMDPlugin", (chunk, set) => {
						compilation.addRuntimeModule(chunk, new AMDDefineRuntimeModule());
					});

				compilation.hooks.runtimeRequirementInTree
					.for(RuntimeGlobals.amdOptions)
					.tap("AMDPlugin", (chunk, set) => {
						compilation.addRuntimeModule(
							chunk,
							new AMDOptionsRuntimeModule(amdOptions)
						);
					});

				const handler = (parser, parserOptions) => {
					if (parserOptions.amd !== undefined && !parserOptions.amd) return;

					const tapOptionsHooks = (optionExpr, rootName, getMembers) => {
						parser.hooks.expression
							.for(optionExpr)
							.tap(
								"AMDPlugin",
								toConstantDependency(parser, RuntimeGlobals.amdOptions, [
									RuntimeGlobals.amdOptions
								])
							);
						parser.hooks.evaluateIdentifier
							.for(optionExpr)
							.tap(
								"AMDPlugin",
								evaluateToIdentifier(optionExpr, rootName, getMembers, true)
							);
						parser.hooks.evaluateTypeof
							.for(optionExpr)
							.tap("AMDPlugin", evaluateToString("object"));
						parser.hooks.typeof
							.for(optionExpr)
							.tap(
								"AMDPlugin",
								toConstantDependency(parser, JSON.stringify("object"))
							);
					};

					new AMDRequireDependenciesBlockParserPlugin(parserOptions).apply(
						parser
					);
					new AMDDefineDependencyParserPlugin(parserOptions).apply(parser);

					tapOptionsHooks("define.amd", "define", () => "amd");
					tapOptionsHooks("require.amd", "require", () => ["amd"]);
					tapOptionsHooks(
						"__webpack_amd_options__",
						"__webpack_amd_options__",
						() => []
					);

					parser.hooks.expression.for("define").tap("AMDPlugin", expr => {
						const dep = new ConstDependency(
							RuntimeGlobals.amdDefine,
							expr.range,
							[RuntimeGlobals.amdDefine]
						);
						dep.loc = expr.loc;
						parser.state.module.addPresentationalDependency(dep);
						return true;
					});
					parser.hooks.typeof
						.for("define")
						.tap(
							"AMDPlugin",
							toConstantDependency(parser, JSON.stringify("function"))
						);
					parser.hooks.evaluateTypeof
						.for("define")
						.tap("AMDPlugin", evaluateToString("function"));
					parser.hooks.canRename.for("define").tap("AMDPlugin", approve);
					parser.hooks.rename.for("define").tap("AMDPlugin", expr => {
						const dep = new ConstDependency(
							RuntimeGlobals.amdDefine,
							expr.range,
							[RuntimeGlobals.amdDefine]
						);
						dep.loc = expr.loc;
						parser.state.module.addPresentationalDependency(dep);
						return false;
					});
					parser.hooks.typeof
						.for("require")
						.tap(
							"AMDPlugin",
							toConstantDependency(parser, JSON.stringify("function"))
						);
					parser.hooks.evaluateTypeof
						.for("require")
						.tap("AMDPlugin", evaluateToString("function"));
				};

				normalModuleFactory.hooks.parser
					.for("javascript/auto")
					.tap("AMDPlugin", handler);
				normalModuleFactory.hooks.parser
					.for("javascript/dynamic")
					.tap("AMDPlugin", handler);
			}
		);
	}
}

module.exports = AMDPlugin;