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{"version":3,"file":"index.mjs","sources":["../../../src/utils.ts","../../../src/equals.ts","../../../src/comparator.ts","../../../src/index.ts"],"sourcesContent":["import type {\n AnyEqualityComparator,\n Cache,\n CircularState,\n Dictionary,\n State,\n TypeEqualityComparator,\n} from './internalTypes.js';\n\nconst { getOwnPropertyNames, getOwnPropertySymbols } = Object;\nconst { hasOwnProperty } = Object.prototype;\n\n/**\n * Combine two comparators into a single comparators.\n */\nexport function combineComparators<Meta>(\n comparatorA: AnyEqualityComparator<Meta>,\n comparatorB: AnyEqualityComparator<Meta>,\n) {\n return function isEqual<A, B>(a: A, b: B, state: State<Meta>) {\n return comparatorA(a, b, state) && comparatorB(a, b, state);\n };\n}\n\n/**\n * Wrap the provided `areItemsEqual` method to manage the circular state, allowing\n * for circular references to be safely included in the comparison without creating\n * stack overflows.\n */\nexport function createIsCircular<\n AreItemsEqual extends TypeEqualityComparator<any, any>,\n>(areItemsEqual: AreItemsEqual): AreItemsEqual {\n return function isCircular(\n a: any,\n b: any,\n state: CircularState<Cache<any, any>>,\n ) {\n if (!a || !b || typeof a !== 'object' || typeof b !== 'object') {\n return areItemsEqual(a, b, state);\n }\n\n const { cache } = state;\n\n const cachedA = cache.get(a);\n const cachedB = cache.get(b);\n\n if (cachedA && cachedB) {\n return cachedA === b && cachedB === a;\n }\n\n cache.set(a, b);\n cache.set(b, a);\n\n const result = areItemsEqual(a, b, state);\n\n cache.delete(a);\n cache.delete(b);\n\n return result;\n } as AreItemsEqual;\n}\n\n/**\n * Get the `@@toStringTag` of the value, if it exists.\n */\nexport function getShortTag(value: any): string | undefined {\n return value != null ? value[Symbol.toStringTag] : undefined;\n}\n\n/**\n * Get the properties to strictly examine, which include both own properties that are\n * not enumerable and symbol properties.\n */\nexport function getStrictProperties(\n object: Dictionary,\n): Array<string | symbol> {\n return (getOwnPropertyNames(object) as Array<string | symbol>).concat(\n getOwnPropertySymbols(object),\n );\n}\n\n/**\n * Whether the object contains the property passed as an own property.\n */\nexport const hasOwn =\n // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition\n Object.hasOwn ||\n ((object: Dictionary, property: number | string | symbol) =>\n hasOwnProperty.call(object, property));\n\n/**\n * Whether the values passed are strictly equal or both NaN.\n */\nexport function sameValueZeroEqual(a: any, b: any): boolean {\n return a === b || (!a && !b && a !== a && b !== b);\n}\n","import type {\n Dictionary,\n PrimitiveWrapper,\n State,\n TypedArray,\n} from './internalTypes.js';\nimport { getStrictProperties, hasOwn, sameValueZeroEqual } from './utils.js';\n\nconst PREACT_VNODE = '__v';\nconst PREACT_OWNER = '__o';\nconst REACT_OWNER = '_owner';\n\nconst { getOwnPropertyDescriptor, keys } = Object;\n\n/**\n * Whether the arrays are equal in value.\n */\nexport function areArraysEqual(a: any[], b: any[], state: State<any>) {\n let index = a.length;\n\n if (b.length !== index) {\n return false;\n }\n\n while (index-- > 0) {\n if (!state.equals(a[index], b[index], index, index, a, b, state)) {\n return false;\n }\n }\n\n return true;\n}\n\n/**\n * Whether the dates passed are equal in value.\n */\nexport function areDatesEqual(a: Date, b: Date): boolean {\n return sameValueZeroEqual(a.getTime(), b.getTime());\n}\n\n/**\n * Whether the errors passed are equal in value.\n */\nexport function areErrorsEqual(a: Error, b: Error): boolean {\n return (\n a.name === b.name &&\n a.message === b.message &&\n a.cause === b.cause &&\n a.stack === b.stack\n );\n}\n\n/**\n * Whether the functions passed are equal in value.\n */\nexport function areFunctionsEqual(\n a: (...args: any[]) => any,\n b: (...args: any[]) => any,\n): boolean {\n
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