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on this file since 571e0df was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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1 | var baseMerge = require('./_baseMerge'),
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2 | isObject = require('./isObject');
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3 |
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4 | /**
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5 | * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
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6 | * objects into destination objects that are passed thru.
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7 | *
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8 | * @private
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9 | * @param {*} objValue The destination value.
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10 | * @param {*} srcValue The source value.
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11 | * @param {string} key The key of the property to merge.
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12 | * @param {Object} object The parent object of `objValue`.
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13 | * @param {Object} source The parent object of `srcValue`.
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14 | * @param {Object} [stack] Tracks traversed source values and their merged
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15 | * counterparts.
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16 | * @returns {*} Returns the value to assign.
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17 | */
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18 | function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
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19 | if (isObject(objValue) && isObject(srcValue)) {
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20 | // Recursively merge objects and arrays (susceptible to call stack limits).
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21 | stack.set(srcValue, objValue);
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22 | baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
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23 | stack['delete'](srcValue);
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24 | }
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25 | return objValue;
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26 | }
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27 |
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28 | module.exports = customDefaultsMerge;
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