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node_modules/webpack/lib/BannerPlugin.js

@@ -5,68 +5,118 @@
 
 "use strict";
 
-const ConcatSource = require("webpack-sources").ConcatSource;
+const { ConcatSource } = require("webpack-sources");
 const ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
+const Template = require("./Template");
 
-const wrapComment = (str) => {
-	if(!str.includes("\n")) return `/*! ${str} */`;
-	return `/*!\n * ${str.split("\n").join("\n * ")}\n */`;
+const validateOptions = require("schema-utils");
+const schema = require("../schemas/plugins/BannerPlugin.json");
+
+/** @typedef {import("../declarations/plugins/BannerPlugin").BannerPluginArgument} BannerPluginArgument */
+/** @typedef {import("../declarations/plugins/BannerPlugin").BannerPluginOptions} BannerPluginOptions */
+
+const wrapComment = str => {
+	if (!str.includes("\n")) {
+		return Template.toComment(str);
+	}
+	return `/*!\n * ${str
+		.replace(/\*\//g, "* /")
+		.split("\n")
+		.join("\n * ")}\n */`;
 };
 
 class BannerPlugin {
+	/**
+	 * @param {BannerPluginArgument} options options object
+	 */
 	constructor(options) {
-		if(arguments.length > 1)
-			throw new Error("BannerPlugin only takes one argument (pass an options object)");
-		if(typeof options === "string")
+		if (arguments.length > 1) {
+			throw new Error(
+				"BannerPlugin only takes one argument (pass an options object)"
+			);
+		}
+
+		validateOptions(schema, options, "Banner Plugin");
+
+		if (typeof options === "string" || typeof options === "function") {
 			options = {
 				banner: options
 			};
-		this.options = options || {};
-		this.banner = this.options.raw ? options.banner : wrapComment(options.banner);
+		}
+
+		/** @type {BannerPluginOptions} */
+		this.options = options;
+
+		const bannerOption = options.banner;
+		if (typeof bannerOption === "function") {
+			const getBanner = bannerOption;
+			this.banner = this.options.raw
+				? getBanner
+				: data => wrapComment(getBanner(data));
+		} else {
+			const banner = this.options.raw
+				? bannerOption
+				: wrapComment(bannerOption);
+			this.banner = () => banner;
+		}
 	}
 
 	apply(compiler) {
 		const options = this.options;
 		const banner = this.banner;
+		const matchObject = ModuleFilenameHelpers.matchObject.bind(
+			undefined,
+			options
+		);
 
-		compiler.plugin("compilation", (compilation) => {
-			compilation.plugin("optimize-chunk-assets", (chunks, callback) => {
-				chunks.forEach((chunk) => {
-					if(options.entryOnly && !chunk.isInitial()) return;
-					chunk.files
-						.filter(ModuleFilenameHelpers.matchObject.bind(undefined, options))
-						.forEach((file) => {
-							let basename;
-							let query = "";
-							let filename = file;
-							const hash = compilation.hash;
-							const querySplit = filename.indexOf("?");
+		compiler.hooks.compilation.tap("BannerPlugin", compilation => {
+			compilation.hooks.optimizeChunkAssets.tap("BannerPlugin", chunks => {
+				for (const chunk of chunks) {
+					if (options.entryOnly && !chunk.canBeInitial()) {
+						continue;
+					}
 
-							if(querySplit >= 0) {
-								query = filename.substr(querySplit);
-								filename = filename.substr(0, querySplit);
-							}
+					for (const file of chunk.files) {
+						if (!matchObject(file)) {
+							continue;
+						}
 
-							const lastSlashIndex = filename.lastIndexOf("/");
+						let basename;
+						let query = "";
+						let filename = file;
+						const hash = compilation.hash;
+						const querySplit = filename.indexOf("?");
 
-							if(lastSlashIndex === -1) {
-								basename = filename;
-							} else {
-								basename = filename.substr(lastSlashIndex + 1);
-							}
+						if (querySplit >= 0) {
+							query = filename.substr(querySplit);
+							filename = filename.substr(0, querySplit);
+						}
 
-							const comment = compilation.getPath(banner, {
-								hash,
-								chunk,
-								filename,
-								basename,
-								query,
-							});
+						const lastSlashIndex = filename.lastIndexOf("/");
 
-							return compilation.assets[file] = new ConcatSource(comment, "\n", compilation.assets[file]);
-						});
-				});
-				callback();
+						if (lastSlashIndex === -1) {
+							basename = filename;
+						} else {
+							basename = filename.substr(lastSlashIndex + 1);
+						}
+
+						const data = {
+							hash,
+							chunk,
+							filename,
+							basename,
+							query
+						};
+
+						const comment = compilation.getPath(banner(data), data);
+
+						compilation.assets[file] = new ConcatSource(
+							comment,
+							"\n",
+							compilation.assets[file]
+						);
+					}
+				}
 			});
 		});
 	}