102 lines
3.2 KiB
JavaScript
102 lines
3.2 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 { ConcatSource, RawSource } = require("webpack-sources");
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const ExternalModule = require("./ExternalModule");
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const ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
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const JavascriptModulesPlugin = require("./javascript/JavascriptModulesPlugin");
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("./Compiler")} Compiler */
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/** @type {WeakMap<Source, Source>} */
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const cache = new WeakMap();
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const devtoolWarning = new RawSource(`/*
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* ATTENTION: The "eval" devtool has been used (maybe by default in mode: "development").
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* This devtool is neither made for production nor for readable output files.
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* It uses "eval()" calls to create a separate source file in the browser devtools.
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* If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
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* or disable the default devtool with "devtool: false".
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* If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
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*/
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`);
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class EvalDevToolModulePlugin {
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constructor(options) {
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this.namespace = options.namespace || "";
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this.sourceUrlComment = options.sourceUrlComment || "\n//# sourceURL=[url]";
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this.moduleFilenameTemplate =
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options.moduleFilenameTemplate ||
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"webpack://[namespace]/[resourcePath]?[loaders]";
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}
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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("EvalDevToolModulePlugin", compilation => {
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const hooks = JavascriptModulesPlugin.getCompilationHooks(compilation);
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hooks.renderModuleContent.tap(
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"EvalDevToolModulePlugin",
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(source, module, { runtimeTemplate, chunkGraph }) => {
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const cacheEntry = cache.get(source);
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if (cacheEntry !== undefined) return cacheEntry;
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if (module instanceof ExternalModule) {
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cache.set(source, source);
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return source;
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}
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const content = source.source();
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const str = ModuleFilenameHelpers.createFilename(
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module,
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{
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moduleFilenameTemplate: this.moduleFilenameTemplate,
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namespace: this.namespace
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},
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{
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requestShortener: runtimeTemplate.requestShortener,
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chunkGraph
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}
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);
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const footer =
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"\n" +
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this.sourceUrlComment.replace(
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/\[url\]/g,
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encodeURI(str)
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.replace(/%2F/g, "/")
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.replace(/%20/g, "_")
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.replace(/%5E/g, "^")
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.replace(/%5C/g, "\\")
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.replace(/^\//, "")
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);
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const result = new RawSource(
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`eval(${JSON.stringify(content + footer)});`
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);
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cache.set(source, result);
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return result;
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}
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);
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hooks.inlineInRuntimeBailout.tap(
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"EvalDevToolModulePlugin",
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() => "the eval devtool is used."
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);
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hooks.render.tap(
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"EvalDevToolModulePlugin",
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source => new ConcatSource(devtoolWarning, source)
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);
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hooks.chunkHash.tap("EvalDevToolModulePlugin", (chunk, hash) => {
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hash.update("EvalDevToolModulePlugin");
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hash.update("2");
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});
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});
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}
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}
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module.exports = EvalDevToolModulePlugin;
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