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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/webpack/lib/dependencies/LoaderPlugin.js
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Diffstat (limited to 'node_modules/webpack/lib/dependencies/LoaderPlugin.js')
-rw-r--r--node_modules/webpack/lib/dependencies/LoaderPlugin.js115
1 files changed, 115 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/LoaderPlugin.js b/node_modules/webpack/lib/dependencies/LoaderPlugin.js
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+/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const LoaderDependency = require("./LoaderDependency");
+const NormalModule = require("../NormalModule");
+
+/** @typedef {import("../Module")} Module */
+
+/**
+ * @callback LoadModuleCallback
+ * @param {Error=} err error object
+ * @param {string=} source source code
+ * @param {object=} map source map
+ * @param {Module=} module loaded module if successful
+ */
+
+class LoaderPlugin {
+ apply(compiler) {
+ compiler.hooks.compilation.tap(
+ "LoaderPlugin",
+ (compilation, { normalModuleFactory }) => {
+ compilation.dependencyFactories.set(
+ LoaderDependency,
+ normalModuleFactory
+ );
+ }
+ );
+
+ compiler.hooks.compilation.tap("LoaderPlugin", compilation => {
+ compilation.hooks.normalModuleLoader.tap(
+ "LoaderPlugin",
+ (loaderContext, module) => {
+ /**
+ * @param {string} request the request string to load the module from
+ * @param {LoadModuleCallback} callback callback returning the loaded module or error
+ * @returns {void}
+ */
+ loaderContext.loadModule = (request, callback) => {
+ const dep = new LoaderDependency(request);
+ dep.loc = {
+ name: request
+ };
+ const factory = compilation.dependencyFactories.get(
+ dep.constructor
+ );
+ if (factory === undefined) {
+ return callback(
+ new Error(
+ `No module factory available for dependency type: ${dep.constructor.name}`
+ )
+ );
+ }
+ compilation.semaphore.release();
+ compilation.addModuleDependencies(
+ module,
+ [
+ {
+ factory,
+ dependencies: [dep]
+ }
+ ],
+ true,
+ "lm",
+ true,
+ err => {
+ compilation.semaphore.acquire(() => {
+ if (err) {
+ return callback(err);
+ }
+ if (!dep.module) {
+ return callback(new Error("Cannot load the module"));
+ }
+ // TODO consider removing this in webpack 5
+ if (dep.module instanceof NormalModule && dep.module.error) {
+ return callback(dep.module.error);
+ }
+ if (!dep.module._source) {
+ throw new Error(
+ "The module created for a LoaderDependency must have a property _source"
+ );
+ }
+ let source, map;
+ const moduleSource = dep.module._source;
+ if (moduleSource.sourceAndMap) {
+ const sourceAndMap = moduleSource.sourceAndMap();
+ map = sourceAndMap.map;
+ source = sourceAndMap.source;
+ } else {
+ map = moduleSource.map();
+ source = moduleSource.source();
+ }
+ if (dep.module.buildInfo.fileDependencies) {
+ for (const d of dep.module.buildInfo.fileDependencies) {
+ loaderContext.addDependency(d);
+ }
+ }
+ if (dep.module.buildInfo.contextDependencies) {
+ for (const d of dep.module.buildInfo.contextDependencies) {
+ loaderContext.addContextDependency(d);
+ }
+ }
+ return callback(null, source, map, dep.module);
+ });
+ }
+ );
+ };
+ }
+ );
+ });
+ }
+}
+module.exports = LoaderPlugin;