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- 'use strict';
- var $TypeError = require('es-errors/type');
- var IsDetachedBuffer = require('./IsDetachedBuffer');
- var isObject = require('../helpers/isObject');
- var isTypedArray = require('is-typed-array');
- var typedArrayBuffer = require('typed-array-buffer');
- // https://262.ecma-international.org/13.0/#sec-validatetypedarray
- module.exports = function ValidateTypedArray(O) {
- if (!isObject(O)) {
- throw new $TypeError('Assertion failed: `O` must be an Object'); // step 1
- }
- if (!isTypedArray(O)) {
- throw new $TypeError('Assertion failed: `O` must be a Typed Array'); // steps 1 - 2
- }
- var buffer = typedArrayBuffer(O); // step 3
- if (IsDetachedBuffer(buffer)) {
- throw new $TypeError('`O` must be backed by a non-detached buffer'); // step 4
- }
- };
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