87 lines
2.4 KiB
JavaScript
87 lines
2.4 KiB
JavaScript
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/*
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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 RequireEnsureDependency = require("./RequireEnsureDependency");
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const RequireEnsureItemDependency = require("./RequireEnsureItemDependency");
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const RequireEnsureDependenciesBlockParserPlugin = require("./RequireEnsureDependenciesBlockParserPlugin");
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const {
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JAVASCRIPT_MODULE_TYPE_AUTO,
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JAVASCRIPT_MODULE_TYPE_DYNAMIC
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} = require("../ModuleTypeConstants");
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const {
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evaluateToString,
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toConstantDependency
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} = require("../javascript/JavascriptParserHelpers");
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/** @typedef {import("../../declarations/WebpackOptions").JavascriptParserOptions} JavascriptParserOptions */
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/** @typedef {import("../Compiler")} Compiler */
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/** @typedef {import("../javascript/JavascriptParser")} Parser */
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const PLUGIN_NAME = "RequireEnsurePlugin";
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class RequireEnsurePlugin {
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/**
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* Apply the plugin
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* @param {Compiler} compiler the compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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compiler.hooks.compilation.tap(
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PLUGIN_NAME,
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(compilation, { normalModuleFactory }) => {
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compilation.dependencyFactories.set(
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RequireEnsureItemDependency,
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normalModuleFactory
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);
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compilation.dependencyTemplates.set(
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RequireEnsureItemDependency,
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new RequireEnsureItemDependency.Template()
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);
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compilation.dependencyTemplates.set(
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RequireEnsureDependency,
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new RequireEnsureDependency.Template()
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);
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/**
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* @param {Parser} parser parser parser
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* @param {JavascriptParserOptions} parserOptions parserOptions
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* @returns {void}
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*/
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const handler = (parser, parserOptions) => {
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if (
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parserOptions.requireEnsure !== undefined &&
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!parserOptions.requireEnsure
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)
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return;
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new RequireEnsureDependenciesBlockParserPlugin().apply(parser);
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parser.hooks.evaluateTypeof
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.for("require.ensure")
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.tap(PLUGIN_NAME, evaluateToString("function"));
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parser.hooks.typeof
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.for("require.ensure")
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.tap(
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PLUGIN_NAME,
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toConstantDependency(parser, JSON.stringify("function"))
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);
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};
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normalModuleFactory.hooks.parser
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.for(JAVASCRIPT_MODULE_TYPE_AUTO)
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.tap(PLUGIN_NAME, handler);
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normalModuleFactory.hooks.parser
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.for(JAVASCRIPT_MODULE_TYPE_DYNAMIC)
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.tap(PLUGIN_NAME, handler);
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}
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);
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}
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}
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module.exports = RequireEnsurePlugin;
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