1 | 'use strict';
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2 | var global = require('../internals/global');
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3 | var call = require('../internals/function-call');
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4 | var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
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5 | var lengthOfArrayLike = require('../internals/length-of-array-like');
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6 | var toOffset = require('../internals/to-offset');
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7 | var toIndexedObject = require('../internals/to-object');
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8 | var fails = require('../internals/fails');
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9 |
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10 | var RangeError = global.RangeError;
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11 | var Int8Array = global.Int8Array;
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12 | var Int8ArrayPrototype = Int8Array && Int8Array.prototype;
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13 | var $set = Int8ArrayPrototype && Int8ArrayPrototype.set;
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14 | var aTypedArray = ArrayBufferViewCore.aTypedArray;
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15 | var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
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16 |
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17 | var WORKS_WITH_OBJECTS_AND_GENERIC_ON_TYPED_ARRAYS = !fails(function () {
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18 |
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19 | var array = new Uint8ClampedArray(2);
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20 | call($set, array, { length: 1, 0: 3 }, 1);
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21 | return array[1] !== 3;
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22 | });
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23 |
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24 |
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25 | var TO_OBJECT_BUG = WORKS_WITH_OBJECTS_AND_GENERIC_ON_TYPED_ARRAYS && ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS && fails(function () {
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26 | var array = new Int8Array(2);
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27 | array.set(1);
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28 | array.set('2', 1);
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29 | return array[0] !== 0 || array[1] !== 2;
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30 | });
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31 |
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32 |
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33 |
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34 | exportTypedArrayMethod('set', function set(arrayLike /* , offset */) {
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35 | aTypedArray(this);
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36 | var offset = toOffset(arguments.length > 1 ? arguments[1] : undefined, 1);
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37 | var src = toIndexedObject(arrayLike);
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38 | if (WORKS_WITH_OBJECTS_AND_GENERIC_ON_TYPED_ARRAYS) return call($set, this, src, offset);
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39 | var length = this.length;
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40 | var len = lengthOfArrayLike(src);
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41 | var index = 0;
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42 | if (len + offset > length) throw new RangeError('Wrong length');
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43 | while (index < len) this[offset + index] = src[index++];
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44 | }, !WORKS_WITH_OBJECTS_AND_GENERIC_ON_TYPED_ARRAYS || TO_OBJECT_BUG);
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