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30 lines
1.0 KiB
30 lines
1.0 KiB
'use strict'; |
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var $TypeError = require('es-errors/type'); |
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var IsTypedArrayOutOfBounds = require('./IsTypedArrayOutOfBounds'); |
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var IsViewOutOfBounds = require('./IsViewOutOfBounds'); |
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var MakeDataViewWithBufferWitnessRecord = require('./MakeDataViewWithBufferWitnessRecord'); |
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var MakeTypedArrayWithBufferWitnessRecord = require('./MakeTypedArrayWithBufferWitnessRecord'); |
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var isDataView = require('is-data-view'); |
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var isTypedArray = require('is-typed-array'); |
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// https://262.ecma-international.org/15.0/#sec-isarraybufferviewoutofbounds |
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module.exports = function IsArrayBufferViewOutOfBounds(O) { |
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var isDV = isDataView(O); |
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if (!isTypedArray(O) && !isDV) { |
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throw new $TypeError('Assertion failed: `O` must be a TypedArray or DataView'); |
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} |
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if (isDV) { // step 1 |
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var viewRecord = MakeDataViewWithBufferWitnessRecord(O, 'SEQ-CST'); // step 1.a |
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return IsViewOutOfBounds(viewRecord); // step 1.b |
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} |
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var taRecord = MakeTypedArrayWithBufferWitnessRecord(O, 'SEQ-CST'); // step 2 |
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return IsTypedArrayOutOfBounds(taRecord); // step 3 |
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};
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