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81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
import cloneArrayBuffer from './.internal/cloneArrayBuffer.js'
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import cloneDataView from './.internal/cloneDataView.js'
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import cloneMap from './.internal/cloneMap.js'
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import cloneRegExp from './.internal/cloneRegExp.js'
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import cloneSet from './.internal/cloneSet.js'
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import cloneSymbol from './.internal/cloneSymbol.js'
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import cloneTypedArray from './.internal/cloneTypedArray.js'
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/** `Object#toString` result references. */
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const boolTag = '[object Boolean]'
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const dateTag = '[object Date]'
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const mapTag = '[object Map]'
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const numberTag = '[object Number]'
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const regexpTag = '[object RegExp]'
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const setTag = '[object Set]'
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const stringTag = '[object String]'
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const symbolTag = '[object Symbol]'
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const arrayBufferTag = '[object ArrayBuffer]'
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const dataViewTag = '[object DataView]'
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const float32Tag = '[object Float32Array]'
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const float64Tag = '[object Float64Array]'
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const int8Tag = '[object Int8Array]'
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const int16Tag = '[object Int16Array]'
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const int32Tag = '[object Int32Array]'
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const uint8Tag = '[object Uint8Array]'
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const uint8ClampedTag = '[object Uint8ClampedArray]'
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const uint16Tag = '[object Uint16Array]'
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const 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`, `Number`, `RegExp`, 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 {Function} cloneFunc The function to clone values.
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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, cloneFunc, isDeep) {
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const 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 cloneMap(object, isDeep, cloneFunc)
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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 cloneSet(object, isDeep, cloneFunc)
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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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