1 | import assignValue from './_assignValue.js';
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2 | import castPath from './_castPath.js';
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3 | import isIndex from './_isIndex.js';
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4 | import isObject from './isObject.js';
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5 | import toKey from './_toKey.js';
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6 |
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7 |
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8 |
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9 |
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12 |
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14 |
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15 |
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16 |
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17 | function baseSet(object, path, value, customizer) {
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18 | if (!isObject(object)) {
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19 | return object;
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20 | }
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21 | path = castPath(path, object);
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22 |
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23 | var index = -1,
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24 | length = path.length,
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25 | lastIndex = length - 1,
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26 | nested = object;
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27 |
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28 | while (nested != null && ++index < length) {
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29 | var key = toKey(path[index]),
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30 | newValue = value;
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31 |
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32 | if (key === '__proto__' || key === 'constructor' || key === 'prototype') {
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33 | return object;
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34 | }
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35 |
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36 | if (index != lastIndex) {
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37 | var objValue = nested[key];
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38 | newValue = customizer ? customizer(objValue, key, nested) : undefined;
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39 | if (newValue === undefined) {
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40 | newValue = isObject(objValue)
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41 | ? objValue
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42 | : (isIndex(path[index + 1]) ? [] : {});
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43 | }
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44 | }
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45 | assignValue(nested, key, newValue);
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46 | nested = nested[key];
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47 | }
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48 | return object;
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49 | }
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50 |
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51 | export default baseSet;
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