Sha256: a8ab47a33bde025c8d66491405bf1de344602bf4e8bd5a434e0e99ce39962f39
Contents?: true
Size: 1.19 KB
Versions: 54
Compression:
Stored size: 1.19 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $RangeError = GetIntrinsic('%RangeError%');
var $TypeError = GetIntrinsic('%TypeError%');
var ToIndex = require('./ToIndex');
var TypedArrayElementSize = require('./TypedArrayElementSize');
var isTypedArray = require('is-typed-array');
var typedArrayByteOffset = require('typed-array-byte-offset');
var typedArrayLength = require('typed-array-length');
// https://262.ecma-international.org/13.0/#sec-validateatomicaccess
module.exports = function ValidateAtomicAccess(typedArray, requestIndex) {
if (!isTypedArray(typedArray)) {
throw new $TypeError('Assertion failed: `typedArray` must be a TypedArray');
}
var length = typedArrayLength(typedArray); // step 1
var accessIndex = ToIndex(requestIndex); // step 2
/*
// this assertion can never be reached
if (!(accessIndex >= 0)) {
throw new $TypeError('Assertion failed: accessIndex >= 0'); // step 4
}
*/
if (accessIndex >= length) {
throw new $RangeError('index out of range'); // step 4
}
var elementSize = TypedArrayElementSize(typedArray); // step 5
var offset = typedArrayByteOffset(typedArray); // step 6
return (accessIndex * elementSize) + offset; // step 7
};
Version data entries
54 entries across 27 versions & 2 rubygems