353 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			353 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
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	MIT License http://www.opensource.org/licenses/mit-license.php
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	Author Tobias Koppers @sokra
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*/
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"use strict";
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const util = require("util");
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/** @type {Map<string, () => void>} */
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const deprecationCache = new Map();
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/**
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 * @typedef {object} FakeHookMarker
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 * @property {true} _fakeHook it's a fake hook
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 */
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/**
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 * @template T
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 * @typedef {T & FakeHookMarker} FakeHook<T>
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 */
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/**
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 * @param {string} message deprecation message
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 * @param {string} code deprecation code
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 * @returns {() => void} function to trigger deprecation
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 */
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const createDeprecation = (message, code) => {
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	const cached = deprecationCache.get(message);
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	if (cached !== undefined) return cached;
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	const fn = util.deprecate(
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		() => {},
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		message,
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		`DEP_WEBPACK_DEPRECATION_${code}`
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	);
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	deprecationCache.set(message, fn);
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	return fn;
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};
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/** @typedef {"concat" | "entry" | "filter" | "find" | "findIndex" | "includes" | "indexOf" | "join" | "lastIndexOf" | "map" | "reduce" | "reduceRight" | "slice" | "some"} COPY_METHODS_NAMES */
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/** @type {COPY_METHODS_NAMES[]} */
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const COPY_METHODS = [
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	"concat",
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	"entry",
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	"filter",
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	"find",
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	"findIndex",
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	"includes",
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	"indexOf",
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	"join",
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	"lastIndexOf",
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	"map",
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	"reduce",
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	"reduceRight",
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	"slice",
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	"some"
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];
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/** @typedef {"copyWithin" | "entries" | "fill" | "keys" | "pop" | "reverse" | "shift" | "splice" | "sort" | "unshift"} DISABLED_METHODS_NAMES */
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/** @type {DISABLED_METHODS_NAMES[]} */
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const DISABLED_METHODS = [
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	"copyWithin",
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	"entries",
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	"fill",
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	"keys",
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	"pop",
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	"reverse",
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	"shift",
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	"splice",
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	"sort",
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	"unshift"
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];
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/**
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 * @template T
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 * @typedef {Set<T> & {[Symbol.isConcatSpreadable]?: boolean} & { push?: (...items: T[]) => void } & { [P in DISABLED_METHODS_NAMES]?: () => void } & { [P in COPY_METHODS_NAMES]?: () => TODO }} SetWithDeprecatedArrayMethods
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 */
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/**
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 * @template T
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 * @param {SetWithDeprecatedArrayMethods<T>} set new set
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 * @param {string} name property name
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 * @returns {void}
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 */
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module.exports.arrayToSetDeprecation = (set, name) => {
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	for (const method of COPY_METHODS) {
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		if (set[method]) continue;
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		const d = createDeprecation(
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			`${name} was changed from Array to Set (using Array method '${method}' is deprecated)`,
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			"ARRAY_TO_SET"
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		);
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		/**
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		 * @deprecated
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		 * @this {Set<T>}
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		 * @returns {number} count
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		 */
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		// eslint-disable-next-line func-names
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		set[method] = function () {
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			d();
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			// eslint-disable-next-line unicorn/prefer-spread
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			const array = Array.from(this);
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			return Array.prototype[/** @type {keyof COPY_METHODS} */ (method)].apply(
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				array,
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				// eslint-disable-next-line prefer-rest-params
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				arguments
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			);
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		};
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	}
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	const dPush = createDeprecation(
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		`${name} was changed from Array to Set (using Array method 'push' is deprecated)`,
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		"ARRAY_TO_SET_PUSH"
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	);
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	const dLength = createDeprecation(
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		`${name} was changed from Array to Set (using Array property 'length' is deprecated)`,
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		"ARRAY_TO_SET_LENGTH"
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	);
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	const dIndexer = createDeprecation(
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		`${name} was changed from Array to Set (indexing Array is deprecated)`,
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		"ARRAY_TO_SET_INDEXER"
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	);
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	/**
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	 * @deprecated
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	 * @this {Set<T>}
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	 * @returns {number} count
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	 */
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	set.push = function push() {
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		dPush();
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		// eslint-disable-next-line prefer-rest-params, unicorn/prefer-spread
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		for (const item of Array.from(arguments)) {
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			this.add(item);
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		}
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		return this.size;
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	};
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	for (const method of DISABLED_METHODS) {
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		if (set[method]) continue;
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		set[method] = () => {
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			throw new Error(
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				`${name} was changed from Array to Set (using Array method '${method}' is not possible)`
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			);
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		};
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	}
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	/**
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	 * @param {number} index index
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	 * @returns {() => T | undefined} value
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	 */
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	const createIndexGetter = (index) => {
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		/**
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		 * @this {Set<T>} a Set
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		 * @returns {T | undefined} the value at this location
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		 */
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		// eslint-disable-next-line func-style
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		const fn = function () {
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			dIndexer();
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			let i = 0;
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			for (const item of this) {
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				if (i++ === index) return item;
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			}
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		};
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		return fn;
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	};
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	/**
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	 * @param {number} index index
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	 */
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	const defineIndexGetter = (index) => {
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		Object.defineProperty(set, index, {
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			get: createIndexGetter(index),
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			set(value) {
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				throw new Error(
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					`${name} was changed from Array to Set (indexing Array with write is not possible)`
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				);
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			}
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		});
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	};
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	defineIndexGetter(0);
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	let indexerDefined = 1;
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	Object.defineProperty(set, "length", {
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		get() {
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			dLength();
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			const length = this.size;
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			for (indexerDefined; indexerDefined < length + 1; indexerDefined++) {
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				defineIndexGetter(indexerDefined);
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			}
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			return length;
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		},
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		set(value) {
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			throw new Error(
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				`${name} was changed from Array to Set (writing to Array property 'length' is not possible)`
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			);
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		}
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	});
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	set[Symbol.isConcatSpreadable] = true;
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};
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/**
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 * @template T
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 * @param {string} name name
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 * @returns {{ new <T = any>(values?: readonly T[] | null): SetDeprecatedArray<T> }} SetDeprecatedArray
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 */
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module.exports.createArrayToSetDeprecationSet = (name) => {
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	let initialized = false;
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	/**
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	 * @template T
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	 */
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	class SetDeprecatedArray extends Set {
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		/**
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		 * @param {readonly T[] | null=} items items
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		 */
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		constructor(items) {
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			super(items);
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			if (!initialized) {
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				initialized = true;
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				module.exports.arrayToSetDeprecation(
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					SetDeprecatedArray.prototype,
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					name
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				);
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			}
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		}
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	}
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	return SetDeprecatedArray;
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};
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/**
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 * @template {object} T
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 * @param {T} fakeHook fake hook implementation
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 * @param {string=} message deprecation message (not deprecated when unset)
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 * @param {string=} code deprecation code (not deprecated when unset)
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 * @returns {FakeHook<T>} fake hook which redirects
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 */
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module.exports.createFakeHook = (fakeHook, message, code) => {
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	if (message && code) {
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		fakeHook = deprecateAllProperties(fakeHook, message, code);
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	}
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	return Object.freeze(
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		Object.assign(fakeHook, { _fakeHook: /** @type {true} */ (true) })
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	);
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};
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/**
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 * @template T
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 * @param {T} obj object
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 * @param {string} message deprecation message
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 * @param {string} code deprecation code
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 * @returns {T} object with property access deprecated
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 */
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const deprecateAllProperties = (obj, message, code) => {
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	const newObj = {};
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	const descriptors = Object.getOwnPropertyDescriptors(obj);
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	for (const name of Object.keys(descriptors)) {
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		const descriptor = descriptors[name];
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		if (typeof descriptor.value === "function") {
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			Object.defineProperty(newObj, name, {
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				...descriptor,
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				value: util.deprecate(descriptor.value, message, code)
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			});
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		} else if (descriptor.get || descriptor.set) {
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			Object.defineProperty(newObj, name, {
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				...descriptor,
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				get: descriptor.get && util.deprecate(descriptor.get, message, code),
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				set: descriptor.set && util.deprecate(descriptor.set, message, code)
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			});
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		} else {
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			let value = descriptor.value;
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			Object.defineProperty(newObj, name, {
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				configurable: descriptor.configurable,
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				enumerable: descriptor.enumerable,
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				get: util.deprecate(() => value, message, code),
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				set: descriptor.writable
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					? util.deprecate(
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							/**
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							 * @template T
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							 * @param {T} v value
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							 * @returns {T} result
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							 */
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							(v) => (value = v),
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							message,
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							code
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						)
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					: undefined
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			});
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		}
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	}
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	return /** @type {T} */ (newObj);
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};
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module.exports.deprecateAllProperties = deprecateAllProperties;
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/**
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 * @template {object} T
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 * @param {T} obj object
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 * @param {string} name property name
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 * @param {string} code deprecation code
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 * @param {string} note additional note
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 * @returns {T} frozen object with deprecation when modifying
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 */
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module.exports.soonFrozenObjectDeprecation = (obj, name, code, note = "") => {
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	const message = `${name} will be frozen in future, all modifications are deprecated.${
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		note && `\n${note}`
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	}`;
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	return /** @type {T} */ (
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		new Proxy(obj, {
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			set: util.deprecate(
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				/**
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				 * @param {object} target target
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				 * @param {string | symbol} property property
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				 * @param {EXPECTED_ANY} value value
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				 * @param {EXPECTED_ANY} receiver receiver
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				 * @returns {boolean} result
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				 */
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				(target, property, value, receiver) =>
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					Reflect.set(target, property, value, receiver),
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				message,
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				code
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			),
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			defineProperty: util.deprecate(
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				/**
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				 * @param {object} target target
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				 * @param {string | symbol} property property
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				 * @param {PropertyDescriptor} descriptor descriptor
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				 * @returns {boolean} result
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				 */
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				(target, property, descriptor) =>
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					Reflect.defineProperty(target, property, descriptor),
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				message,
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				code
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			),
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			deleteProperty: util.deprecate(
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				/**
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				 * @param {object} target target
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				 * @param {string | symbol} property property
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				 * @returns {boolean} result
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				 */
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				(target, property) => Reflect.deleteProperty(target, property),
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				message,
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				code
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			),
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			setPrototypeOf: util.deprecate(
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				/**
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				 * @param {object} target target
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				 * @param {EXPECTED_OBJECT | null} proto proto
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				 * @returns {boolean} result
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				 */
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				(target, proto) => Reflect.setPrototypeOf(target, proto),
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				message,
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				code
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			)
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		})
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	);
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};
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