[6a3a178] | 1 | var cloneArrayBuffer = require('./_cloneArrayBuffer'),
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| 2 | cloneDataView = require('./_cloneDataView'),
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| 3 | cloneRegExp = require('./_cloneRegExp'),
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| 4 | cloneSymbol = require('./_cloneSymbol'),
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| 5 | cloneTypedArray = require('./_cloneTypedArray');
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| 6 |
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| 7 | /** `Object#toString` result references. */
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| 8 | var boolTag = '[object Boolean]',
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| 9 | dateTag = '[object Date]',
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| 10 | mapTag = '[object Map]',
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| 11 | numberTag = '[object Number]',
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| 12 | regexpTag = '[object RegExp]',
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| 13 | setTag = '[object Set]',
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| 14 | stringTag = '[object String]',
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| 15 | symbolTag = '[object Symbol]';
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| 16 |
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| 17 | var arrayBufferTag = '[object ArrayBuffer]',
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| 18 | dataViewTag = '[object DataView]',
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| 19 | float32Tag = '[object Float32Array]',
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| 20 | float64Tag = '[object Float64Array]',
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| 21 | int8Tag = '[object Int8Array]',
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| 22 | int16Tag = '[object Int16Array]',
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| 23 | int32Tag = '[object Int32Array]',
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| 24 | uint8Tag = '[object Uint8Array]',
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| 25 | uint8ClampedTag = '[object Uint8ClampedArray]',
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| 26 | uint16Tag = '[object Uint16Array]',
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| 27 | uint32Tag = '[object Uint32Array]';
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| 28 |
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| 29 | /**
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| 30 | * Initializes an object clone based on its `toStringTag`.
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| 31 | *
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| 32 | * **Note:** This function only supports cloning values with tags of
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| 33 | * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
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| 34 | *
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| 35 | * @private
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| 36 | * @param {Object} object The object to clone.
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| 37 | * @param {string} tag The `toStringTag` of the object to clone.
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| 38 | * @param {boolean} [isDeep] Specify a deep clone.
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| 39 | * @returns {Object} Returns the initialized clone.
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| 40 | */
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| 41 | function initCloneByTag(object, tag, isDeep) {
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| 42 | var Ctor = object.constructor;
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| 43 | switch (tag) {
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| 44 | case arrayBufferTag:
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| 45 | return cloneArrayBuffer(object);
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| 46 |
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| 47 | case boolTag:
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| 48 | case dateTag:
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| 49 | return new Ctor(+object);
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| 50 |
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| 51 | case dataViewTag:
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| 52 | return cloneDataView(object, isDeep);
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| 53 |
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| 54 | case float32Tag: case float64Tag:
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| 55 | case int8Tag: case int16Tag: case int32Tag:
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| 56 | case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
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| 57 | return cloneTypedArray(object, isDeep);
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| 58 |
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| 59 | case mapTag:
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| 60 | return new Ctor;
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| 61 |
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| 62 | case numberTag:
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| 63 | case stringTag:
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| 64 | return new Ctor(object);
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| 65 |
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| 66 | case regexpTag:
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| 67 | return cloneRegExp(object);
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| 68 |
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| 69 | case setTag:
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| 70 | return new Ctor;
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| 71 |
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| 72 | case symbolTag:
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| 73 | return cloneSymbol(object);
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| 74 | }
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| 75 | }
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| 76 |
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| 77 | module.exports = initCloneByTag;
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