From d1d9f00b1bd660842addf5e6b1d1b64c852a9eea Mon Sep 17 00:00:00 2001
From: littleblack111 <littleblack11111@gmail.com>
Date: Sun, 5 Nov 2023 17:16:09 +0800
Subject: added hover prefixer

---
 .../lib/serialization/PlainObjectSerializer.js     | 91 ++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 node_modules/webpack/lib/serialization/PlainObjectSerializer.js

(limited to 'node_modules/webpack/lib/serialization/PlainObjectSerializer.js')

diff --git a/node_modules/webpack/lib/serialization/PlainObjectSerializer.js b/node_modules/webpack/lib/serialization/PlainObjectSerializer.js
new file mode 100644
index 00000000..b10ff555
--- /dev/null
+++ b/node_modules/webpack/lib/serialization/PlainObjectSerializer.js
@@ -0,0 +1,91 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+*/
+
+"use strict";
+
+/** @typedef {import("./ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
+/** @typedef {import("./ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
+
+const cache = new WeakMap();
+
+class ObjectStructure {
+	constructor() {
+		this.keys = undefined;
+		this.children = undefined;
+	}
+
+	getKeys(keys) {
+		if (this.keys === undefined) this.keys = keys;
+		return this.keys;
+	}
+
+	key(key) {
+		if (this.children === undefined) this.children = new Map();
+		const child = this.children.get(key);
+		if (child !== undefined) return child;
+		const newChild = new ObjectStructure();
+		this.children.set(key, newChild);
+		return newChild;
+	}
+}
+
+const getCachedKeys = (keys, cacheAssoc) => {
+	let root = cache.get(cacheAssoc);
+	if (root === undefined) {
+		root = new ObjectStructure();
+		cache.set(cacheAssoc, root);
+	}
+	let current = root;
+	for (const key of keys) {
+		current = current.key(key);
+	}
+	return current.getKeys(keys);
+};
+
+class PlainObjectSerializer {
+	/**
+	 * @param {Object} obj plain object
+	 * @param {ObjectSerializerContext} context context
+	 */
+	serialize(obj, context) {
+		const keys = Object.keys(obj);
+		if (keys.length > 128) {
+			// Objects with so many keys are unlikely to share structure
+			// with other objects
+			context.write(keys);
+			for (const key of keys) {
+				context.write(obj[key]);
+			}
+		} else if (keys.length > 1) {
+			context.write(getCachedKeys(keys, context.write));
+			for (const key of keys) {
+				context.write(obj[key]);
+			}
+		} else if (keys.length === 1) {
+			const key = keys[0];
+			context.write(key);
+			context.write(obj[key]);
+		} else {
+			context.write(null);
+		}
+	}
+	/**
+	 * @param {ObjectDeserializerContext} context context
+	 * @returns {Object} plain object
+	 */
+	deserialize(context) {
+		const keys = context.read();
+		const obj = {};
+		if (Array.isArray(keys)) {
+			for (const key of keys) {
+				obj[key] = context.read();
+			}
+		} else if (keys !== null) {
+			obj[keys] = context.read();
+		}
+		return obj;
+	}
+}
+
+module.exports = PlainObjectSerializer;
-- 
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