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1 files changed, 48 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/ModuleReason.js b/node_modules/webpack/lib/ModuleReason.js
new file mode 100644
index 00000000..3697f849
--- /dev/null
+++ b/node_modules/webpack/lib/ModuleReason.js
@@ -0,0 +1,48 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+/** @typedef {import("./Module")} Module */
+/** @typedef {import("./Dependency")} Dependency */
+
+class ModuleReason {
+	/**
+	 * @param {Module} module the referencing module
+	 * @param {Dependency} dependency the referencing dependency
+	 * @param {string=} explanation some extra detail
+	 */
+	constructor(module, dependency, explanation) {
+		this.module = module;
+		this.dependency = dependency;
+		this.explanation = explanation;
+		this._chunks = null;
+	}
+
+	hasChunk(chunk) {
+		if (this._chunks) {
+			if (this._chunks.has(chunk)) return true;
+		} else if (this.module && this.module._chunks.has(chunk)) return true;
+		return false;
+	}
+
+	rewriteChunks(oldChunk, newChunks) {
+		if (!this._chunks) {
+			if (this.module) {
+				if (!this.module._chunks.has(oldChunk)) return;
+				this._chunks = new Set(this.module._chunks);
+			} else {
+				this._chunks = new Set();
+			}
+		}
+		if (this._chunks.has(oldChunk)) {
+			this._chunks.delete(oldChunk);
+			for (let i = 0; i < newChunks.length; i++) {
+				this._chunks.add(newChunks[i]);
+			}
+		}
+	}
+}
+
+module.exports = ModuleReason;