99 lines
2.6 KiB
JavaScript
99 lines
2.6 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 {
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evaluateToString,
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toConstantDependencyWithWebpackRequire
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} = require("./JavascriptParserHelpers");
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const NullFactory = require("./NullFactory");
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const Template = require("./Template");
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const ConstDependency = require("./dependencies/ConstDependency");
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/** @typedef {import("./Compiler")} Compiler */
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const REPLACEMENTS = {
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// eslint-disable-next-line camelcase
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__webpack_hash__: "__webpack_require__.h",
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// eslint-disable-next-line camelcase
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__webpack_chunkname__: "__webpack_require__.cn"
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};
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const REPLACEMENT_TYPES = {
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// eslint-disable-next-line camelcase
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__webpack_hash__: "string",
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// eslint-disable-next-line camelcase
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__webpack_chunkname__: "string"
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};
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class ExtendedAPIPlugin {
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/**
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* @param {Compiler} compiler webpack compiler
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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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"ExtendedAPIPlugin",
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(compilation, { normalModuleFactory }) => {
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compilation.dependencyFactories.set(ConstDependency, new NullFactory());
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compilation.dependencyTemplates.set(
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ConstDependency,
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new ConstDependency.Template()
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);
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const mainTemplate = compilation.mainTemplate;
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mainTemplate.hooks.requireExtensions.tap(
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"ExtendedAPIPlugin",
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(source, { chunk, hash }) => {
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const buf = [source];
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buf.push("");
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buf.push("// __webpack_hash__");
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buf.push(`${mainTemplate.requireFn}.h = ${JSON.stringify(hash)};`);
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buf.push("");
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buf.push("// __webpack_chunkname__");
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buf.push(
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`${mainTemplate.requireFn}.cn = ${JSON.stringify(chunk.name)};`
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);
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return Template.asString(buf);
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}
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);
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mainTemplate.hooks.globalHash.tap("ExtendedAPIPlugin", () => true);
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const handler = (parser, parserOptions) => {
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Object.keys(REPLACEMENTS).forEach(key => {
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parser.hooks.expression
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.for(key)
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.tap(
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"ExtendedAPIPlugin",
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toConstantDependencyWithWebpackRequire(
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parser,
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REPLACEMENTS[key]
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)
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);
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parser.hooks.evaluateTypeof
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.for(key)
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.tap(
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"ExtendedAPIPlugin",
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evaluateToString(REPLACEMENT_TYPES[key])
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);
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});
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};
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normalModuleFactory.hooks.parser
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.for("javascript/auto")
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.tap("ExtendedAPIPlugin", handler);
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normalModuleFactory.hooks.parser
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.for("javascript/dynamic")
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.tap("ExtendedAPIPlugin", handler);
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normalModuleFactory.hooks.parser
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.for("javascript/esm")
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.tap("ExtendedAPIPlugin", handler);
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}
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);
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}
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}
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module.exports = ExtendedAPIPlugin;
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