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) {
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6 | const target = sources[0] || {};
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7 | const output = {};
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8 | if (respectPrototype) {
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9 | Object.setPrototypeOf(output, Object.create(Object.getPrototypeOf(target)));
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10 | }
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11 | for (const source of sources) {
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12 | if (isObject(target) && isObject(source)) {
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13 | if (respectPrototype) {
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14 | const outputPrototype = Object.getPrototypeOf(output);
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15 | const sourcePrototype = Object.getPrototypeOf(source);
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16 | if (sourcePrototype) {
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17 | for (const key of Object.getOwnPropertyNames(sourcePrototype)) {
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18 | const descriptor = Object.getOwnPropertyDescriptor(sourcePrototype, key);
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19 | if ((0, helpers_js_1.isSome)(descriptor)) {
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20 | Object.defineProperty(outputPrototype, key, descriptor);
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21 | }
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22 | }
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23 | }
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24 | }
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25 | for (const key in source) {
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26 | if (isObject(source[key])) {
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27 | if (!(key in output)) {
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28 | Object.assign(output, { [key]: source[key] });
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29 | }
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30 | else {
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31 | output[key] = mergeDeep([output[key], source[key]], respectPrototype);
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32 | }
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33 | }
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34 | else {
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35 | Object.assign(output, { [key]: source[key] });
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36 | }
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37 | }
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38 | }
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39 | }
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40 | return output;
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41 | }
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42 | exports.mergeDeep = mergeDeep;
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43 | function isObject(item) {
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44 | return item && typeof item === 'object' && !Array.isArray(item);
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45 | }
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