'use strict'; Object.defineProperty(exports, '__esModule', { value: true }); exports.default = deepCyclicCopyReplaceable; var _prettyFormat = require('pretty-format'); /** * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ const builtInObject = [ Array, Date, Float32Array, Float64Array, Int16Array, Int32Array, Int8Array, Map, Set, RegExp, Uint16Array, Uint32Array, Uint8Array, Uint8ClampedArray ]; if (typeof Buffer !== 'undefined') { builtInObject.push(Buffer); } const isBuiltInObject = object => builtInObject.includes(object.constructor); const isMap = value => value.constructor === Map; function deepCyclicCopyReplaceable(value, cycles = new WeakMap()) { if (typeof value !== 'object' || value === null) { return value; } else if (cycles.has(value)) { return cycles.get(value); } else if (Array.isArray(value)) { return deepCyclicCopyArray(value, cycles); } else if (isMap(value)) { return deepCyclicCopyMap(value, cycles); } else if (isBuiltInObject(value)) { return value; } else if (_prettyFormat.plugins.DOMElement.test(value)) { return value.cloneNode(true); } else { return deepCyclicCopyObject(value, cycles); } } function deepCyclicCopyObject(object, cycles) { const newObject = Object.create(Object.getPrototypeOf(object)); let descriptors = {}; let obj = object; do { descriptors = Object.assign( {}, Object.getOwnPropertyDescriptors(obj), descriptors ); } while ( (obj = Object.getPrototypeOf(obj)) && obj !== Object.getPrototypeOf({}) ); cycles.set(object, newObject); const newDescriptors = [ ...Object.keys(descriptors), ...Object.getOwnPropertySymbols(descriptors) ].reduce( //@ts-expect-error because typescript do not support symbol key in object //https://github.com/microsoft/TypeScript/issues/1863 (newDescriptors, key) => { const enumerable = descriptors[key].enumerable; newDescriptors[key] = { configurable: true, enumerable, value: deepCyclicCopyReplaceable( // this accesses the value or getter, depending. We just care about the value anyways, and this allows us to not mess with accessors // it has the side effect of invoking the getter here though, rather than copying it over object[key], cycles ), writable: true }; return newDescriptors; }, {} ); //@ts-expect-error because typescript do not support symbol key in object //https://github.com/microsoft/TypeScript/issues/1863 return Object.defineProperties(newObject, newDescriptors); } function deepCyclicCopyArray(array, cycles) { const newArray = new (Object.getPrototypeOf(array).constructor)(array.length); const length = array.length; cycles.set(array, newArray); for (let i = 0; i < length; i++) { newArray[i] = deepCyclicCopyReplaceable(array[i], cycles); } return newArray; } function deepCyclicCopyMap(map, cycles) { const newMap = new Map(); cycles.set(map, newMap); map.forEach((value, key) => { newMap.set(key, deepCyclicCopyReplaceable(value, cycles)); }); return newMap; }