| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.mergeDeep = void 0;
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| 4 | const helpers_js_1 = require("./helpers.js");
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| 5 | function mergeDeep(sources, respectPrototype = false, respectArrays = false, respectArrayLength = false) {
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| 6 | if (respectArrays && respectArrayLength) {
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| 7 | let expectedLength;
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| 8 | const areArraysInTheSameLength = sources.every(source => {
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| 9 | if (Array.isArray(source)) {
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| 10 | if (expectedLength === undefined) {
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| 11 | expectedLength = source.length;
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| 12 | return true;
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| 13 | }
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| 14 | else if (expectedLength === source.length) {
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| 15 | return true;
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| 16 | }
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| 17 | }
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| 18 | return false;
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| 19 | });
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| 20 | if (areArraysInTheSameLength) {
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| 21 | return new Array(expectedLength).fill(null).map((_, index) => mergeDeep(sources.map(source => source[index]), respectPrototype, respectArrays, respectArrayLength));
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| 22 | }
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| 23 | }
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| 24 | const output = {};
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| 25 | if (respectPrototype) {
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| 26 | Object.setPrototypeOf(output, Object.create(Object.getPrototypeOf(sources[0])));
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| 27 | }
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| 28 | for (const source of sources) {
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| 29 | if (isObject(source)) {
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| 30 | if (respectPrototype) {
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| 31 | const outputPrototype = Object.getPrototypeOf(output);
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| 32 | const sourcePrototype = Object.getPrototypeOf(source);
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| 33 | if (sourcePrototype) {
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| 34 | for (const key of Object.getOwnPropertyNames(sourcePrototype)) {
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| 35 | const descriptor = Object.getOwnPropertyDescriptor(sourcePrototype, key);
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| 36 | if ((0, helpers_js_1.isSome)(descriptor)) {
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| 37 | Object.defineProperty(outputPrototype, key, descriptor);
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| 38 | }
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| 39 | }
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| 40 | }
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| 41 | }
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| 42 | for (const key in source) {
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| 43 | if (isObject(source[key])) {
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| 44 | if (!(key in output)) {
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| 45 | Object.assign(output, { [key]: source[key] });
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| 46 | }
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| 47 | else {
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| 48 | output[key] = mergeDeep([output[key], source[key]], respectPrototype, respectArrays, respectArrayLength);
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| 49 | }
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| 50 | }
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| 51 | else if (respectArrays && Array.isArray(output[key])) {
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| 52 | if (Array.isArray(source[key])) {
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| 53 | if (respectArrayLength && output[key].length === source[key].length) {
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| 54 | output[key] = mergeDeep([output[key], source[key]], respectPrototype, respectArrays, respectArrayLength);
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| 55 | }
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| 56 | else {
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| 57 | output[key].push(...source[key]);
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| 58 | }
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| 59 | }
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| 60 | else {
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| 61 | output[key].push(source[key]);
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| 62 | }
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| 63 | }
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| 64 | else {
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| 65 | Object.assign(output, { [key]: source[key] });
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| 66 | }
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| 67 | }
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| 68 | }
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| 69 | }
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| 70 | return output;
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| 71 | }
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| 72 | exports.mergeDeep = mergeDeep;
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| 73 | function isObject(item) {
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| 74 | return item && typeof item === 'object' && !Array.isArray(item);
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| 75 | }
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