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