190 lines
6.5 KiB
JavaScript
190 lines
6.5 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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const isPlainObject = require('./isPlainObject.js');
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const getSymbols = require('../compat/_internal/getSymbols.js');
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const getTag = require('../compat/_internal/getTag.js');
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const tags = require('../compat/_internal/tags.js');
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const eq = require('../compat/util/eq.js');
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function isEqualWith(a, b, areValuesEqual) {
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return isEqualWithImpl(a, b, undefined, undefined, undefined, undefined, areValuesEqual);
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}
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function isEqualWithImpl(a, b, property, aParent, bParent, stack, areValuesEqual) {
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const result = areValuesEqual(a, b, property, aParent, bParent, stack);
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if (result !== undefined) {
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return result;
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}
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if (typeof a === typeof b) {
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switch (typeof a) {
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case 'bigint':
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case 'string':
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case 'boolean':
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case 'symbol':
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case 'undefined': {
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return a === b;
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}
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case 'number': {
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return a === b || Object.is(a, b);
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}
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case 'function': {
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return a === b;
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}
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case 'object': {
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return areObjectsEqual(a, b, stack, areValuesEqual);
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}
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}
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}
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return areObjectsEqual(a, b, stack, areValuesEqual);
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}
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function areObjectsEqual(a, b, stack, areValuesEqual) {
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if (Object.is(a, b)) {
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return true;
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}
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let aTag = getTag.getTag(a);
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let bTag = getTag.getTag(b);
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if (aTag === tags.argumentsTag) {
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aTag = tags.objectTag;
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}
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if (bTag === tags.argumentsTag) {
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bTag = tags.objectTag;
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}
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if (aTag !== bTag) {
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return false;
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}
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switch (aTag) {
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case tags.stringTag:
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return a.toString() === b.toString();
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case tags.numberTag: {
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const x = a.valueOf();
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const y = b.valueOf();
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return eq.eq(x, y);
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}
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case tags.booleanTag:
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case tags.dateTag:
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case tags.symbolTag:
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return Object.is(a.valueOf(), b.valueOf());
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case tags.regexpTag: {
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return a.source === b.source && a.flags === b.flags;
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}
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case tags.functionTag: {
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return a === b;
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}
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}
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stack = stack ?? new Map();
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const aStack = stack.get(a);
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const bStack = stack.get(b);
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if (aStack != null && bStack != null) {
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return aStack === b;
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}
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stack.set(a, b);
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stack.set(b, a);
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try {
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switch (aTag) {
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case tags.mapTag: {
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if (a.size !== b.size) {
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return false;
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}
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for (const [key, value] of a.entries()) {
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if (!b.has(key) || !isEqualWithImpl(value, b.get(key), key, a, b, stack, areValuesEqual)) {
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return false;
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}
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}
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return true;
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}
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case tags.setTag: {
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if (a.size !== b.size) {
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return false;
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}
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const aValues = Array.from(a.values());
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const bValues = Array.from(b.values());
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for (let i = 0; i < aValues.length; i++) {
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const aValue = aValues[i];
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const index = bValues.findIndex(bValue => {
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return isEqualWithImpl(aValue, bValue, undefined, a, b, stack, areValuesEqual);
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});
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if (index === -1) {
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return false;
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}
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bValues.splice(index, 1);
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}
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return true;
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}
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case tags.arrayTag:
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case tags.uint8ArrayTag:
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case tags.uint8ClampedArrayTag:
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case tags.uint16ArrayTag:
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case tags.uint32ArrayTag:
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case tags.bigUint64ArrayTag:
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case tags.int8ArrayTag:
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case tags.int16ArrayTag:
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case tags.int32ArrayTag:
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case tags.bigInt64ArrayTag:
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case tags.float32ArrayTag:
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case tags.float64ArrayTag: {
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if (typeof Buffer !== 'undefined' && Buffer.isBuffer(a) !== Buffer.isBuffer(b)) {
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return false;
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}
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if (a.length !== b.length) {
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return false;
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}
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for (let i = 0; i < a.length; i++) {
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if (!isEqualWithImpl(a[i], b[i], i, a, b, stack, areValuesEqual)) {
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return false;
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}
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}
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return true;
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}
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case tags.arrayBufferTag: {
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if (a.byteLength !== b.byteLength) {
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return false;
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}
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return areObjectsEqual(new Uint8Array(a), new Uint8Array(b), stack, areValuesEqual);
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}
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case tags.dataViewTag: {
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if (a.byteLength !== b.byteLength || a.byteOffset !== b.byteOffset) {
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return false;
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}
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return areObjectsEqual(new Uint8Array(a), new Uint8Array(b), stack, areValuesEqual);
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}
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case tags.errorTag: {
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return a.name === b.name && a.message === b.message;
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}
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case tags.objectTag: {
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const areEqualInstances = areObjectsEqual(a.constructor, b.constructor, stack, areValuesEqual) ||
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(isPlainObject.isPlainObject(a) && isPlainObject.isPlainObject(b));
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if (!areEqualInstances) {
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return false;
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}
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const aKeys = [...Object.keys(a), ...getSymbols.getSymbols(a)];
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const bKeys = [...Object.keys(b), ...getSymbols.getSymbols(b)];
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if (aKeys.length !== bKeys.length) {
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return false;
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}
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for (let i = 0; i < aKeys.length; i++) {
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const propKey = aKeys[i];
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const aProp = a[propKey];
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if (!Object.hasOwn(b, propKey)) {
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return false;
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}
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const bProp = b[propKey];
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if (!isEqualWithImpl(aProp, bProp, propKey, a, b, stack, areValuesEqual)) {
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return false;
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}
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}
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return true;
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}
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default: {
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return false;
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}
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}
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}
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finally {
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stack.delete(a);
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stack.delete(b);
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}
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}
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exports.isEqualWith = isEqualWith;
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