added hover prefixer

1 files changed, 765 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/serialization/ObjectMiddleware.js b/node_modules/webpack/lib/serialization/ObjectMiddleware.js
new file mode 100644
index 00000000..31890dfe
--- /dev/null
+++ b/node_modules/webpack/lib/serialization/ObjectMiddleware.js
@@ -0,0 +1,765 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+*/
+
+"use strict";
+
+const createHash = require("../util/createHash");
+const ArraySerializer = require("./ArraySerializer");
+const DateObjectSerializer = require("./DateObjectSerializer");
+const ErrorObjectSerializer = require("./ErrorObjectSerializer");
+const MapObjectSerializer = require("./MapObjectSerializer");
+const NullPrototypeObjectSerializer = require("./NullPrototypeObjectSerializer");
+const PlainObjectSerializer = require("./PlainObjectSerializer");
+const RegExpObjectSerializer = require("./RegExpObjectSerializer");
+const SerializerMiddleware = require("./SerializerMiddleware");
+const SetObjectSerializer = require("./SetObjectSerializer");
+
+/** @typedef {typeof import("../util/Hash")} Hash */
+/** @typedef {import("./types").ComplexSerializableType} ComplexSerializableType */
+/** @typedef {import("./types").PrimitiveSerializableType} PrimitiveSerializableType */
+
+/** @typedef {new (...params: any[]) => any} Constructor */
+
+/*
+
+Format:
+
+File -> Section*
+Section -> ObjectSection | ReferenceSection | EscapeSection | OtherSection
+
+ObjectSection -> ESCAPE (
+	number:relativeOffset (number > 0) |
+	string:request (string|null):export
+) Section:value* ESCAPE ESCAPE_END_OBJECT
+ReferenceSection -> ESCAPE number:relativeOffset (number < 0)
+EscapeSection -> ESCAPE ESCAPE_ESCAPE_VALUE (escaped value ESCAPE)
+EscapeSection -> ESCAPE ESCAPE_UNDEFINED (escaped value ESCAPE)
+OtherSection -> any (except ESCAPE)
+
+Why using null as escape value?
+Multiple null values can merged by the BinaryMiddleware, which makes it very efficient
+Technically any value can be used.
+
+*/
+
+/**
+ * @typedef {Object} ObjectSerializerContext
+ * @property {function(any): void} write
+ * @property {function(any): void} setCircularReference
+ */
+
+/**
+ * @typedef {Object} ObjectDeserializerContext
+ * @property {function(): any} read
+ * @property {function(any): void} setCircularReference
+ */
+
+/**
+ * @typedef {Object} ObjectSerializer
+ * @property {function(any, ObjectSerializerContext): void} serialize
+ * @property {function(ObjectDeserializerContext): any} deserialize
+ */
+
+/**
+ * @template T
+ * @param {Set<T>} set set
+ * @param {number} size count of items to keep
+ */
+const setSetSize = (set, size) => {
+	let i = 0;
+	for (const item of set) {
+		if (i++ >= size) {
+			set.delete(item);
+		}
+	}
+};
+
+/**
+ * @template K, X
+ * @param {Map<K, X>} map map
+ * @param {number} size count of items to keep
+ */
+const setMapSize = (map, size) => {
+	let i = 0;
+	for (const item of map.keys()) {
+		if (i++ >= size) {
+			map.delete(item);
+		}
+	}
+};
+
+/**
+ * @param {Buffer} buffer buffer
+ * @param {string | Hash} hashFunction hash function to use
+ * @returns {string} hash
+ */
+const toHash = (buffer, hashFunction) => {
+	const hash = createHash(hashFunction);
+	hash.update(buffer);
+	return /** @type {string} */ (hash.digest("latin1"));
+};
+
+const ESCAPE = null;
+const ESCAPE_ESCAPE_VALUE = null;
+const ESCAPE_END_OBJECT = true;
+const ESCAPE_UNDEFINED = false;
+
+const CURRENT_VERSION = 2;
+
+/** @type {Map<Constructor, { request?: string, name?: string | number | null, serializer?: ObjectSerializer }>} */
+const serializers = new Map();
+/** @type {Map<string | number, ObjectSerializer>} */
+const serializerInversed = new Map();
+
+/** @type {Set<string>} */
+const loadedRequests = new Set();
+
+const NOT_SERIALIZABLE = {};
+
+const jsTypes = new Map();
+jsTypes.set(Object, new PlainObjectSerializer());
+jsTypes.set(Array, new ArraySerializer());
+jsTypes.set(null, new NullPrototypeObjectSerializer());
+jsTypes.set(Map, new MapObjectSerializer());
+jsTypes.set(Set, new SetObjectSerializer());
+jsTypes.set(Date, new DateObjectSerializer());
+jsTypes.set(RegExp, new RegExpObjectSerializer());
+jsTypes.set(Error, new ErrorObjectSerializer(Error));
+jsTypes.set(EvalError, new ErrorObjectSerializer(EvalError));
+jsTypes.set(RangeError, new ErrorObjectSerializer(RangeError));
+jsTypes.set(ReferenceError, new ErrorObjectSerializer(ReferenceError));
+jsTypes.set(SyntaxError, new ErrorObjectSerializer(SyntaxError));
+jsTypes.set(TypeError, new ErrorObjectSerializer(TypeError));
+
+// If in a sandboxed environment (e. g. jest), this escapes the sandbox and registers
+// real Object and Array types to. These types may occur in the wild too, e. g. when
+// using Structured Clone in postMessage.
+if (exports.constructor !== Object) {
+	const Obj = /** @type {typeof Object} */ (exports.constructor);
+	const Fn = /** @type {typeof Function} */ (Obj.constructor);
+	for (const [type, config] of Array.from(jsTypes)) {
+		if (type) {
+			const Type = new Fn(`return ${type.name};`)();
+			jsTypes.set(Type, config);
+		}
+	}
+}
+
+{
+	let i = 1;
+	for (const [type, serializer] of jsTypes) {
+		serializers.set(type, {
+			request: "",
+			name: i++,
+			serializer
+		});
+	}
+}
+
+for (const { request, name, serializer } of serializers.values()) {
+	serializerInversed.set(
+		`${request}/${name}`,
+		/** @type {ObjectSerializer} */ (serializer)
+	);
+}
+
+/** @type {Map<RegExp, (request: string) => boolean>} */
+const loaders = new Map();
+
+/**
+ * @typedef {ComplexSerializableType[]} DeserializedType
+ * @typedef {PrimitiveSerializableType[]} SerializedType
+ * @extends {SerializerMiddleware<DeserializedType, SerializedType>}
+ */
+class ObjectMiddleware extends SerializerMiddleware {
+	/**
+	 * @param {function(any): void} extendContext context extensions
+	 * @param {string | Hash} hashFunction hash function to use
+	 */
+	constructor(extendContext, hashFunction = "md4") {
+		super();
+		this.extendContext = extendContext;
+		this._hashFunction = hashFunction;
+	}
+	/**
+	 * @param {RegExp} regExp RegExp for which the request is tested
+	 * @param {function(string): boolean} loader loader to load the request, returns true when successful
+	 * @returns {void}
+	 */
+	static registerLoader(regExp, loader) {
+		loaders.set(regExp, loader);
+	}
+
+	/**
+	 * @param {Constructor} Constructor the constructor
+	 * @param {string} request the request which will be required when deserializing
+	 * @param {string | null} name the name to make multiple serializer unique when sharing a request
+	 * @param {ObjectSerializer} serializer the serializer
+	 * @returns {void}
+	 */
+	static register(Constructor, request, name, serializer) {
+		const key = request + "/" + name;
+
+		if (serializers.has(Constructor)) {
+			throw new Error(
+				`ObjectMiddleware.register: serializer for ${Constructor.name} is already registered`
+			);
+		}
+
+		if (serializerInversed.has(key)) {
+			throw new Error(
+				`ObjectMiddleware.register: serializer for ${key} is already registered`
+			);
+		}
+
+		serializers.set(Constructor, {
+			request,
+			name,
+			serializer
+		});
+
+		serializerInversed.set(key, serializer);
+	}
+
+	/**
+	 * @param {Constructor} Constructor the constructor
+	 * @returns {void}
+	 */
+	static registerNotSerializable(Constructor) {
+		if (serializers.has(Constructor)) {
+			throw new Error(
+				`ObjectMiddleware.registerNotSerializable: serializer for ${Constructor.name} is already registered`
+			);
+		}
+
+		serializers.set(Constructor, NOT_SERIALIZABLE);
+	}
+
+	static getSerializerFor(object) {
+		const proto = Object.getPrototypeOf(object);
+		let c;
+		if (proto === null) {
+			// Object created with Object.create(null)
+			c = null;
+		} else {
+			c = proto.constructor;
+			if (!c) {
+				throw new Error(
+					"Serialization of objects with prototype without valid constructor property not possible"
+				);
+			}
+		}
+		const config = serializers.get(c);
+
+		if (!config) throw new Error(`No serializer registered for ${c.name}`);
+		if (config === NOT_SERIALIZABLE) throw NOT_SERIALIZABLE;
+
+		return config;
+	}
+
+	/**
+	 * @param {string} request request
+	 * @param {TODO} name name
+	 * @returns {ObjectSerializer} serializer
+	 */
+	static getDeserializerFor(request, name) {
+		const key = request + "/" + name;
+		const serializer = serializerInversed.get(key);
+
+		if (serializer === undefined) {
+			throw new Error(`No deserializer registered for ${key}`);
+		}
+
+		return serializer;
+	}
+
+	/**
+	 * @param {string} request request
+	 * @param {TODO} name name
+	 * @returns {ObjectSerializer} serializer
+	 */
+	static _getDeserializerForWithoutError(request, name) {
+		const key = request + "/" + name;
+		const serializer = serializerInversed.get(key);
+		return serializer;
+	}
+
+	/**
+	 * @param {DeserializedType} data data
+	 * @param {Object} context context object
+	 * @returns {SerializedType|Promise<SerializedType>} serialized data
+	 */
+	serialize(data, context) {
+		/** @type {any[]} */
+		let result = [CURRENT_VERSION];
+		let currentPos = 0;
+		let referenceable = new Map();
+		const addReferenceable = item => {
+			referenceable.set(item, currentPos++);
+		};
+		let bufferDedupeMap = new Map();
+		const dedupeBuffer = buf => {
+			const len = buf.length;
+			const entry = bufferDedupeMap.get(len);
+			if (entry === undefined) {
+				bufferDedupeMap.set(len, buf);
+				return buf;
+			}
+			if (Buffer.isBuffer(entry)) {
+				if (len < 32) {
+					if (buf.equals(entry)) {
+						return entry;
+					}
+					bufferDedupeMap.set(len, [entry, buf]);
+					return buf;
+				} else {
+					const hash = toHash(entry, this._hashFunction);
+					const newMap = new Map();
+					newMap.set(hash, entry);
+					bufferDedupeMap.set(len, newMap);
+					const hashBuf = toHash(buf, this._hashFunction);
+					if (hash === hashBuf) {
+						return entry;
+					}
+					return buf;
+				}
+			} else if (Array.isArray(entry)) {
+				if (entry.length < 16) {
+					for (const item of entry) {
+						if (buf.equals(item)) {
+							return item;
+						}
+					}
+					entry.push(buf);
+					return buf;
+				} else {
+					const newMap = new Map();
+					const hash = toHash(buf, this._hashFunction);
+					let found;
+					for (const item of entry) {
+						const itemHash = toHash(item, this._hashFunction);
+						newMap.set(itemHash, item);
+						if (found === undefined && itemHash === hash) found = item;
+					}
+					bufferDedupeMap.set(len, newMap);
+					if (found === undefined) {
+						newMap.set(hash, buf);
+						return buf;
+					} else {
+						return found;
+					}
+				}
+			} else {
+				const hash = toHash(buf, this._hashFunction);
+				const item = entry.get(hash);
+				if (item !== undefined) {
+					return item;
+				}
+				entry.set(hash, buf);
+				return buf;
+			}
+		};
+		let currentPosTypeLookup = 0;
+		let objectTypeLookup = new Map();
+		const cycleStack = new Set();
+		const stackToString = item => {
+			const arr = Array.from(cycleStack);
+			arr.push(item);
+			return arr
+				.map(item => {
+					if (typeof item === "string") {
+						if (item.length > 100) {
+							return `String ${JSON.stringify(item.slice(0, 100)).slice(
+								0,
+								-1
+							)}..."`;
+						}
+						return `String ${JSON.stringify(item)}`;
+					}
+					try {
+						const { request, name } = ObjectMiddleware.getSerializerFor(item);
+						if (request) {
+							return `${request}${name ? `.${name}` : ""}`;
+						}
+					} catch (e) {
+						// ignore -> fallback
+					}
+					if (typeof item === "object" && item !== null) {
+						if (item.constructor) {
+							if (item.constructor === Object)
+								return `Object { ${Object.keys(item).join(", ")} }`;
+							if (item.constructor === Map) return `Map { ${item.size} items }`;
+							if (item.constructor === Array)
+								return `Array { ${item.length} items }`;
+							if (item.constructor === Set) return `Set { ${item.size} items }`;
+							if (item.constructor === RegExp) return item.toString();
+							return `${item.constructor.name}`;
+						}
+						return `Object [null prototype] { ${Object.keys(item).join(
+							", "
+						)} }`;
+					}
+					if (typeof item === "bigint") {
+						return `BigInt ${item}n`;
+					}
+					try {
+						return `${item}`;
+					} catch (e) {
+						return `(${e.message})`;
+					}
+				})
+				.join(" -> ");
+		};
+		let hasDebugInfoAttached;
+		let ctx = {
+			write(value, key) {
+				try {
+					process(value);
+				} catch (e) {
+					if (e !== NOT_SERIALIZABLE) {
+						if (hasDebugInfoAttached === undefined)
+							hasDebugInfoAttached = new WeakSet();
+						if (!hasDebugInfoAttached.has(e)) {
+							e.message += `\nwhile serializing ${stackToString(value)}`;
+							hasDebugInfoAttached.add(e);
+						}
+					}
+					throw e;
+				}
+			},
+			setCircularReference(ref) {
+				addReferenceable(ref);
+			},
+			snapshot() {
+				return {
+					length: result.length,
+					cycleStackSize: cycleStack.size,
+					referenceableSize: referenceable.size,
+					currentPos,
+					objectTypeLookupSize: objectTypeLookup.size,
+					currentPosTypeLookup
+				};
+			},
+			rollback(snapshot) {
+				result.length = snapshot.length;
+				setSetSize(cycleStack, snapshot.cycleStackSize);
+				setMapSize(referenceable, snapshot.referenceableSize);
+				currentPos = snapshot.currentPos;
+				setMapSize(objectTypeLookup, snapshot.objectTypeLookupSize);
+				currentPosTypeLookup = snapshot.currentPosTypeLookup;
+			},
+			...context
+		};
+		this.extendContext(ctx);
+		const process = item => {
+			if (Buffer.isBuffer(item)) {
+				// check if we can emit a reference
+				const ref = referenceable.get(item);
+				if (ref !== undefined) {
+					result.push(ESCAPE, ref - currentPos);
+					return;
+				}
+				const alreadyUsedBuffer = dedupeBuffer(item);
+				if (alreadyUsedBuffer !== item) {
+					const ref = referenceable.get(alreadyUsedBuffer);
+					if (ref !== undefined) {
+						referenceable.set(item, ref);
+						result.push(ESCAPE, ref - currentPos);
+						return;
+					}
+					item = alreadyUsedBuffer;
+				}
+				addReferenceable(item);
+
+				result.push(item);
+			} else if (item === ESCAPE) {
+				result.push(ESCAPE, ESCAPE_ESCAPE_VALUE);
+			} else if (
+				typeof item === "object"
+				// We don't have to check for null as ESCAPE is null and this has been checked before
+			) {
+				// check if we can emit a reference
+				const ref = referenceable.get(item);
+				if (ref !== undefined) {
+					result.push(ESCAPE, ref - currentPos);
+					return;
+				}
+
+				if (cycleStack.has(item)) {
+					throw new Error(
+						`This is a circular references. To serialize circular references use 'setCircularReference' somewhere in the circle during serialize and deserialize.`
+					);
+				}
+
+				const { request, name, serializer } =
+					ObjectMiddleware.getSerializerFor(item);
+				const key = `${request}/${name}`;
+				const lastIndex = objectTypeLookup.get(key);
+
+				if (lastIndex === undefined) {
+					objectTypeLookup.set(key, currentPosTypeLookup++);
+
+					result.push(ESCAPE, request, name);
+				} else {
+					result.push(ESCAPE, currentPosTypeLookup - lastIndex);
+				}
+
+				cycleStack.add(item);
+
+				try {
+					serializer.serialize(item, ctx);
+				} finally {
+					cycleStack.delete(item);
+				}
+
+				result.push(ESCAPE, ESCAPE_END_OBJECT);
+
+				addReferenceable(item);
+			} else if (typeof item === "string") {
+				if (item.length > 1) {
+					// short strings are shorter when not emitting a reference (this saves 1 byte per empty string)
+					// check if we can emit a reference
+					const ref = referenceable.get(item);
+					if (ref !== undefined) {
+						result.push(ESCAPE, ref - currentPos);
+						return;
+					}
+					addReferenceable(item);
+				}
+
+				if (item.length > 102400 && context.logger) {
+					context.logger.warn(
+						`Serializing big strings (${Math.round(
+							item.length / 1024
+						)}kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)`
+					);
+				}
+
+				result.push(item);
+			} else if (typeof item === "function") {
+				if (!SerializerMiddleware.isLazy(item))
+					throw new Error("Unexpected function " + item);
+				/** @type {SerializedType} */
+				const serializedData =
+					SerializerMiddleware.getLazySerializedValue(item);
+				if (serializedData !== undefined) {
+					if (typeof serializedData === "function") {
+						result.push(serializedData);
+					} else {
+						throw new Error("Not implemented");
+					}
+				} else if (SerializerMiddleware.isLazy(item, this)) {
+					throw new Error("Not implemented");
+				} else {
+					const data = SerializerMiddleware.serializeLazy(item, data =>
+						this.serialize([data], context)
+					);
+					SerializerMiddleware.setLazySerializedValue(item, data);
+					result.push(data);
+				}
+			} else if (item === undefined) {
+				result.push(ESCAPE, ESCAPE_UNDEFINED);
+			} else {
+				result.push(item);
+			}
+		};
+
+		try {
+			for (const item of data) {
+				process(item);
+			}
+			return result;
+		} catch (e) {
+			if (e === NOT_SERIALIZABLE) return null;
+
+			throw e;
+		} finally {
+			// Get rid of these references to avoid leaking memory
+			// This happens because the optimized code v8 generates
+			// is optimized for our "ctx.write" method so it will reference
+			// it from e. g. Dependency.prototype.serialize -(IC)-> ctx.write
+			data =
+				result =
+				referenceable =
+				bufferDedupeMap =
+				objectTypeLookup =
+				ctx =
+					undefined;
+		}
+	}
+
+	/**
+	 * @param {SerializedType} data data
+	 * @param {Object} context context object
+	 * @returns {DeserializedType|Promise<DeserializedType>} deserialized data
+	 */
+	deserialize(data, context) {
+		let currentDataPos = 0;
+		const read = () => {
+			if (currentDataPos >= data.length)
+				throw new Error("Unexpected end of stream");
+
+			return data[currentDataPos++];
+		};
+
+		if (read() !== CURRENT_VERSION)
+			throw new Error("Version mismatch, serializer changed");
+
+		let currentPos = 0;
+		let referenceable = [];
+		const addReferenceable = item => {
+			referenceable.push(item);
+			currentPos++;
+		};
+		let currentPosTypeLookup = 0;
+		let objectTypeLookup = [];
+		let result = [];
+		let ctx = {
+			read() {
+				return decodeValue();
+			},
+			setCircularReference(ref) {
+				addReferenceable(ref);
+			},
+			...context
+		};
+		this.extendContext(ctx);
+		const decodeValue = () => {
+			const item = read();
+
+			if (item === ESCAPE) {
+				const nextItem = read();
+
+				if (nextItem === ESCAPE_ESCAPE_VALUE) {
+					return ESCAPE;
+				} else if (nextItem === ESCAPE_UNDEFINED) {
+					return undefined;
+				} else if (nextItem === ESCAPE_END_OBJECT) {
+					throw new Error(
+						`Unexpected end of object at position ${currentDataPos - 1}`
+					);
+				} else {
+					const request = nextItem;
+					let serializer;
+
+					if (typeof request === "number") {
+						if (request < 0) {
+							// relative reference
+							return referenceable[currentPos + request];
+						}
+						serializer = objectTypeLookup[currentPosTypeLookup - request];
+					} else {
+						if (typeof request !== "string") {
+							throw new Error(
+								`Unexpected type (${typeof request}) of request ` +
+									`at position ${currentDataPos - 1}`
+							);
+						}
+						const name = read();
+
+						serializer = ObjectMiddleware._getDeserializerForWithoutError(
+							request,
+							name
+						);
+
+						if (serializer === undefined) {
+							if (request && !loadedRequests.has(request)) {
+								let loaded = false;
+								for (const [regExp, loader] of loaders) {
+									if (regExp.test(request)) {
+										if (loader(request)) {
+											loaded = true;
+											break;
+										}
+									}
+								}
+								if (!loaded) {
+									require(request);
+								}
+
+								loadedRequests.add(request);
+							}
+
+							serializer = ObjectMiddleware.getDeserializerFor(request, name);
+						}
+
+						objectTypeLookup.push(serializer);
+						currentPosTypeLookup++;
+					}
+					try {
+						const item = serializer.deserialize(ctx);
+						const end1 = read();
+
+						if (end1 !== ESCAPE) {
+							throw new Error("Expected end of object");
+						}
+
+						const end2 = read();
+
+						if (end2 !== ESCAPE_END_OBJECT) {
+							throw new Error("Expected end of object");
+						}
+
+						addReferenceable(item);
+
+						return item;
+					} catch (err) {
+						// As this is only for error handling, we omit creating a Map for
+						// faster access to this information, as this would affect performance
+						// in the good case
+						let serializerEntry;
+						for (const entry of serializers) {
+							if (entry[1].serializer === serializer) {
+								serializerEntry = entry;
+								break;
+							}
+						}
+						const name = !serializerEntry
+							? "unknown"
+							: !serializerEntry[1].request
+							? serializerEntry[0].name
+							: serializerEntry[1].name
+							? `${serializerEntry[1].request} ${serializerEntry[1].name}`
+							: serializerEntry[1].request;
+						err.message += `\n(during deserialization of ${name})`;
+						throw err;
+					}
+				}
+			} else if (typeof item === "string") {
+				if (item.length > 1) {
+					addReferenceable(item);
+				}
+
+				return item;
+			} else if (Buffer.isBuffer(item)) {
+				addReferenceable(item);
+
+				return item;
+			} else if (typeof item === "function") {
+				return SerializerMiddleware.deserializeLazy(
+					item,
+					data => this.deserialize(data, context)[0]
+				);
+			} else {
+				return item;
+			}
+		};
+
+		try {
+			while (currentDataPos < data.length) {
+				result.push(decodeValue());
+			}
+			return result;
+		} finally {
+			// Get rid of these references to avoid leaking memory
+			// This happens because the optimized code v8 generates
+			// is optimized for our "ctx.read" method so it will reference
+			// it from e. g. Dependency.prototype.deserialize -(IC)-> ctx.read
+			result = referenceable = data = objectTypeLookup = ctx = undefined;
+		}
+	}
+}
+
+module.exports = ObjectMiddleware;
+module.exports.NOT_SERIALIZABLE = NOT_SERIALIZABLE;