webpack/lib/dependencies/HarmonyModulesPlugin.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 HarmonyCompatibilityDependency = require("./HarmonyCompatibilityDependency");
const HarmonyInitDependency = require("./HarmonyInitDependency");
const HarmonyImportSpecifierDependency = require("./HarmonyImportSpecifierDependency");
const HarmonyImportSideEffectDependency = require("./HarmonyImportSideEffectDependency");
const HarmonyExportHeaderDependency = require("./HarmonyExportHeaderDependency");
const HarmonyExportExpressionDependency = require("./HarmonyExportExpressionDependency");
const HarmonyExportSpecifierDependency = require("./HarmonyExportSpecifierDependency");
const HarmonyExportImportedSpecifierDependency = require("./HarmonyExportImportedSpecifierDependency");
const HarmonyAcceptDependency = require("./HarmonyAcceptDependency");
const HarmonyAcceptImportDependency = require("./HarmonyAcceptImportDependency");

const NullFactory = require("../NullFactory");

const HarmonyDetectionParserPlugin = require("./HarmonyDetectionParserPlugin");
const HarmonyImportDependencyParserPlugin = require("./HarmonyImportDependencyParserPlugin");
const HarmonyExportDependencyParserPlugin = require("./HarmonyExportDependencyParserPlugin");
const HarmonyTopLevelThisParserPlugin = require("./HarmonyTopLevelThisParserPlugin");

class HarmonyModulesPlugin {
	constructor(options) {
		this.options = options;
	}

	apply(compiler) {
		compiler.hooks.compilation.tap(
			"HarmonyModulesPlugin",
			(compilation, { normalModuleFactory }) => {
				compilation.dependencyFactories.set(
					HarmonyCompatibilityDependency,
					new NullFactory()
				);
				compilation.dependencyTemplates.set(
					HarmonyCompatibilityDependency,
					new HarmonyCompatibilityDependency.Template()
				);

				compilation.dependencyFactories.set(
					HarmonyInitDependency,
					new NullFactory()
				);
				compilation.dependencyTemplates.set(
					HarmonyInitDependency,
					new HarmonyInitDependency.Template()
				);

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

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

				compilation.dependencyFactories.set(
					HarmonyExportHeaderDependency,
					new NullFactory()
				);
				compilation.dependencyTemplates.set(
					HarmonyExportHeaderDependency,
					new HarmonyExportHeaderDependency.Template()
				);

				compilation.dependencyFactories.set(
					HarmonyExportExpressionDependency,
					new NullFactory()
				);
				compilation.dependencyTemplates.set(
					HarmonyExportExpressionDependency,
					new HarmonyExportExpressionDependency.Template()
				);

				compilation.dependencyFactories.set(
					HarmonyExportSpecifierDependency,
					new NullFactory()
				);
				compilation.dependencyTemplates.set(
					HarmonyExportSpecifierDependency,
					new HarmonyExportSpecifierDependency.Template()
				);

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

				compilation.dependencyFactories.set(
					HarmonyAcceptDependency,
					new NullFactory()
				);
				compilation.dependencyTemplates.set(
					HarmonyAcceptDependency,
					new HarmonyAcceptDependency.Template()
				);

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

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

					new HarmonyDetectionParserPlugin().apply(parser);
					new HarmonyImportDependencyParserPlugin(this.options).apply(parser);
					new HarmonyExportDependencyParserPlugin(this.options).apply(parser);
					new HarmonyTopLevelThisParserPlugin().apply(parser);
				};

				normalModuleFactory.hooks.parser
					.for("javascript/auto")
					.tap("HarmonyModulesPlugin", handler);
				normalModuleFactory.hooks.parser
					.for("javascript/esm")
					.tap("HarmonyModulesPlugin", handler);
			}
		);
	}
}
module.exports = HarmonyModulesPlugin;