1 | var Stack = require('./_Stack'),
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2 | assignMergeValue = require('./_assignMergeValue'),
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3 | baseFor = require('./_baseFor'),
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4 | baseMergeDeep = require('./_baseMergeDeep'),
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5 | isObject = require('./isObject'),
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6 | keysIn = require('./keysIn');
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7 |
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18 |
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19 | function baseMerge(object, source, srcIndex, customizer, stack) {
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20 | if (object === source) {
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21 | return;
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22 | }
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23 | baseFor(source, function(srcValue, key) {
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24 | if (isObject(srcValue)) {
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25 | stack || (stack = new Stack);
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26 | baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
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27 | }
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28 | else {
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29 | var newValue = customizer
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30 | ? customizer(object[key], srcValue, (key + ''), object, source, stack)
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31 | : undefined;
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32 |
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33 | if (newValue === undefined) {
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34 | newValue = srcValue;
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35 | }
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36 | assignMergeValue(object, key, newValue);
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37 | }
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38 | }, keysIn);
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39 | }
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40 |
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41 | module.exports = baseMerge;
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