node fixes, updates

1 files changed, 235 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/library/SystemLibraryPlugin.js b/node_modules/webpack/lib/library/SystemLibraryPlugin.js
new file mode 100644
index 00000000..701b870d
--- /dev/null
+++ b/node_modules/webpack/lib/library/SystemLibraryPlugin.js
@@ -0,0 +1,235 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Joel Denning @joeldenning
+*/
+
+"use strict";
+
+const { ConcatSource } = require("webpack-sources");
+const { UsageState } = require("../ExportsInfo");
+const ExternalModule = require("../ExternalModule");
+const Template = require("../Template");
+const propertyAccess = require("../util/propertyAccess");
+const AbstractLibraryPlugin = require("./AbstractLibraryPlugin");
+
+/** @typedef {import("webpack-sources").Source} Source */
+/** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
+/** @typedef {import("../../declarations/WebpackOptions").LibraryType} LibraryType */
+/** @typedef {import("../Chunk")} Chunk */
+/** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
+/** @typedef {import("../Compiler")} Compiler */
+/** @typedef {import("../javascript/JavascriptModulesPlugin").RenderContext} RenderContext */
+/** @typedef {import("../util/Hash")} Hash */
+/** @template T @typedef {import("./AbstractLibraryPlugin").LibraryContext<T>} LibraryContext<T> */
+
+/**
+ * @typedef {object} SystemLibraryPluginOptions
+ * @property {LibraryType} type
+ */
+
+/**
+ * @typedef {object} SystemLibraryPluginParsed
+ * @property {string} name
+ */
+
+/**
+ * @typedef {SystemLibraryPluginParsed} T
+ * @extends {AbstractLibraryPlugin<SystemLibraryPluginParsed>}
+ */
+class SystemLibraryPlugin extends AbstractLibraryPlugin {
+	/**
+	 * @param {SystemLibraryPluginOptions} options the plugin options
+	 */
+	constructor(options) {
+		super({
+			pluginName: "SystemLibraryPlugin",
+			type: options.type
+		});
+	}
+
+	/**
+	 * @param {LibraryOptions} library normalized library option
+	 * @returns {T | false} preprocess as needed by overriding
+	 */
+	parseOptions(library) {
+		const { name } = library;
+		if (name && typeof name !== "string") {
+			throw new Error(
+				`System.js library name must be a simple string or unset. ${AbstractLibraryPlugin.COMMON_LIBRARY_NAME_MESSAGE}`
+			);
+		}
+		const _name = /** @type {string} */ (name);
+		return {
+			name: _name
+		};
+	}
+
+	/**
+	 * @param {Source} source source
+	 * @param {RenderContext} renderContext render context
+	 * @param {LibraryContext<T>} libraryContext context
+	 * @returns {Source} source with library export
+	 */
+	render(source, { chunkGraph, moduleGraph, chunk }, { options, compilation }) {
+		const modules = chunkGraph
+			.getChunkModules(chunk)
+			.filter(m => m instanceof ExternalModule && m.externalType === "system");
+		const externals = /** @type {ExternalModule[]} */ (modules);
+
+		// The name this bundle should be registered as with System
+		const name = options.name
+			? `${JSON.stringify(compilation.getPath(options.name, { chunk }))}, `
+			: "";
+
+		// The array of dependencies that are external to webpack and will be provided by System
+		const systemDependencies = JSON.stringify(
+			externals.map(m =>
+				typeof m.request === "object" && !Array.isArray(m.request)
+					? m.request.amd
+					: m.request
+			)
+		);
+
+		// The name of the variable provided by System for exporting
+		const dynamicExport = "__WEBPACK_DYNAMIC_EXPORT__";
+
+		// An array of the internal variable names for the webpack externals
+		const externalWebpackNames = externals.map(
+			m =>
+				`__WEBPACK_EXTERNAL_MODULE_${Template.toIdentifier(
+					`${chunkGraph.getModuleId(m)}`
+				)}__`
+		);
+
+		// Declaring variables for the internal variable names for the webpack externals
+		const externalVarDeclarations = externalWebpackNames
+			.map(name => `var ${name} = {};`)
+			.join("\n");
+
+		// Define __esModule flag on all internal variables and helpers
+		/** @type {string[]} */
+		const externalVarInitialization = [];
+
+		// The system.register format requires an array of setter functions for externals.
+		const setters =
+			externalWebpackNames.length === 0
+				? ""
+				: Template.asString([
+						"setters: [",
+						Template.indent(
+							externals
+								.map((module, i) => {
+									const external = externalWebpackNames[i];
+									const exportsInfo = moduleGraph.getExportsInfo(module);
+									const otherUnused =
+										exportsInfo.otherExportsInfo.getUsed(chunk.runtime) ===
+										UsageState.Unused;
+									const instructions = [];
+									const handledNames = [];
+									for (const exportInfo of exportsInfo.orderedExports) {
+										const used = exportInfo.getUsedName(
+											undefined,
+											chunk.runtime
+										);
+										if (used) {
+											if (otherUnused || used !== exportInfo.name) {
+												instructions.push(
+													`${external}${propertyAccess([
+														used
+													])} = module${propertyAccess([exportInfo.name])};`
+												);
+												handledNames.push(exportInfo.name);
+											}
+										} else {
+											handledNames.push(exportInfo.name);
+										}
+									}
+									if (!otherUnused) {
+										if (
+											!Array.isArray(module.request) ||
+											module.request.length === 1
+										) {
+											externalVarInitialization.push(
+												`Object.defineProperty(${external}, "__esModule", { value: true });`
+											);
+										}
+										if (handledNames.length > 0) {
+											const name = `${external}handledNames`;
+											externalVarInitialization.push(
+												`var ${name} = ${JSON.stringify(handledNames)};`
+											);
+											instructions.push(
+												Template.asString([
+													"Object.keys(module).forEach(function(key) {",
+													Template.indent([
+														`if(${name}.indexOf(key) >= 0)`,
+														Template.indent(`${external}[key] = module[key];`)
+													]),
+													"});"
+												])
+											);
+										} else {
+											instructions.push(
+												Template.asString([
+													"Object.keys(module).forEach(function(key) {",
+													Template.indent([`${external}[key] = module[key];`]),
+													"});"
+												])
+											);
+										}
+									}
+									if (instructions.length === 0) return "function() {}";
+									return Template.asString([
+										"function(module) {",
+										Template.indent(instructions),
+										"}"
+									]);
+								})
+								.join(",\n")
+						),
+						"],"
+					]);
+
+		return new ConcatSource(
+			Template.asString([
+				`System.register(${name}${systemDependencies}, function(${dynamicExport}, __system_context__) {`,
+				Template.indent([
+					externalVarDeclarations,
+					Template.asString(externalVarInitialization),
+					"return {",
+					Template.indent([
+						setters,
+						"execute: function() {",
+						Template.indent(`${dynamicExport}(`)
+					])
+				]),
+				""
+			]),
+			source,
+			Template.asString([
+				"",
+				Template.indent([
+					Template.indent([Template.indent([");"]), "}"]),
+					"};"
+				]),
+				"})"
+			])
+		);
+	}
+
+	/**
+	 * @param {Chunk} chunk the chunk
+	 * @param {Hash} hash hash
+	 * @param {ChunkHashContext} chunkHashContext chunk hash context
+	 * @param {LibraryContext<T>} libraryContext context
+	 * @returns {void}
+	 */
+	chunkHash(chunk, hash, chunkHashContext, { options, compilation }) {
+		hash.update("SystemLibraryPlugin");
+		if (options.name) {
+			hash.update(compilation.getPath(options.name, { chunk }));
+		}
+	}
+}
+
+module.exports = SystemLibraryPlugin;