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Rich Trott
2981f24f92
Update ESLint to v3.8.0. * Installed with `npm install --production` to avoid installing unnecessary dev files * Used `dmn -f clean` to further eliminate unneeded files PR-URL: https://github.com/nodejs/node/pull/9112 Reviewed-By: Teddy Katz <teddy.katz@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io>
42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
var Stack = require('./_Stack'),
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assignMergeValue = require('./_assignMergeValue'),
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baseFor = require('./_baseFor'),
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baseMergeDeep = require('./_baseMergeDeep'),
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isObject = require('./isObject'),
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keysIn = require('./keysIn');
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/**
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* The base implementation of `_.merge` without support for multiple sources.
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*
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* @private
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* @param {Object} object The destination object.
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* @param {Object} source The source object.
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* @param {number} srcIndex The index of `source`.
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* @param {Function} [customizer] The function to customize merged values.
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* @param {Object} [stack] Tracks traversed source values and their merged
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* counterparts.
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*/
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function baseMerge(object, source, srcIndex, customizer, stack) {
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if (object === source) {
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return;
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}
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baseFor(source, function(srcValue, key) {
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if (isObject(srcValue)) {
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stack || (stack = new Stack);
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baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
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}
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else {
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var newValue = customizer
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? customizer(object[key], srcValue, (key + ''), object, source, stack)
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: undefined;
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if (newValue === undefined) {
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newValue = srcValue;
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}
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assignMergeValue(object, key, newValue);
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}
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}, keysIn);
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}
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module.exports = baseMerge;
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