78 lines
2.2 KiB
Plaintext
78 lines
2.2 KiB
Plaintext
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import cloneArrayBuffer from './_cloneArrayBuffer.js';
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import cloneDataView from './_cloneDataView.js';
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import cloneRegExp from './_cloneRegExp.js';
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import cloneSymbol from './_cloneSymbol.js';
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import cloneTypedArray from './_cloneTypedArray.js';
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/** `Object#toString` result references. */
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var boolTag = '[object Boolean]',
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dateTag = '[object Date]',
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mapTag = '[object Map]',
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numberTag = '[object Number]',
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regexpTag = '[object RegExp]',
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setTag = '[object Set]',
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stringTag = '[object String]',
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symbolTag = '[object Symbol]';
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var arrayBufferTag = '[object ArrayBuffer]',
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dataViewTag = '[object DataView]',
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float32Tag = '[object Float32Array]',
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float64Tag = '[object Float64Array]',
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int8Tag = '[object Int8Array]',
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int16Tag = '[object Int16Array]',
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int32Tag = '[object Int32Array]',
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uint8Tag = '[object Uint8Array]',
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uint8ClampedTag = '[object Uint8ClampedArray]',
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uint16Tag = '[object Uint16Array]',
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uint32Tag = '[object Uint32Array]';
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/**
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* Initializes an object clone based on its `toStringTag`.
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*
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* **Note:** This function only supports cloning values with tags of
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* `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
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*
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* @private
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* @param {Object} object The object to clone.
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* @param {string} tag The `toStringTag` of the object to clone.
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* @param {boolean} [isDeep] Specify a deep clone.
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* @returns {Object} Returns the initialized clone.
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*/
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function initCloneByTag(object, tag, isDeep) {
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var Ctor = object.constructor;
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switch (tag) {
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case arrayBufferTag:
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return cloneArrayBuffer(object);
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case boolTag:
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case dateTag:
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return new Ctor(+object);
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case dataViewTag:
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return cloneDataView(object, isDeep);
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case float32Tag: case float64Tag:
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case int8Tag: case int16Tag: case int32Tag:
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case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
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return cloneTypedArray(object, isDeep);
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case mapTag:
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return new Ctor;
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case numberTag:
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case stringTag:
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return new Ctor(object);
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case regexpTag:
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return cloneRegExp(object);
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case setTag:
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return new Ctor;
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case symbolTag:
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return cloneSymbol(object);
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}
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}
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export default initCloneByTag;
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