1 | import Stack from './_Stack.js';
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2 | import assignMergeValue from './_assignMergeValue.js';
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3 | import baseFor from './_baseFor.js';
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4 | import baseMergeDeep from './_baseMergeDeep.js';
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5 | import isObject from './isObject.js';
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6 | import keysIn from './keysIn.js';
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7 | import safeGet from './_safeGet.js';
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8 |
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19 |
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20 | function baseMerge(object, source, srcIndex, customizer, stack) {
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21 | if (object === source) {
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22 | return;
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23 | }
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24 | baseFor(source, function(srcValue, key) {
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25 | if (isObject(srcValue)) {
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26 | stack || (stack = new Stack);
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27 | baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
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28 | }
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29 | else {
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30 | var newValue = customizer
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31 | ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
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32 | : undefined;
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33 |
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34 | if (newValue === undefined) {
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35 | newValue = srcValue;
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36 | }
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37 | assignMergeValue(object, key, newValue);
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38 | }
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39 | }, keysIn);
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40 | }
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41 |
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42 | export default baseMerge;
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