'use strict'; var GetIntrinsic = require('get-intrinsic'); var $RangeError = GetIntrinsic('%RangeError%'); var $TypeError = GetIntrinsic('%TypeError%'); var isTypedArray = require('is-typed-array'); var typedArrayBuffer = require('typed-array-buffer'); var typedArrayByteOffset = require('typed-array-byte-offset'); var typedArrayLength = require('typed-array-length'); var whichTypedArray = require('which-typed-array'); var isInteger = require('../helpers/isInteger'); var Get = require('./Get'); var IsBigIntElementType = require('./IsBigIntElementType'); var IsDetachedBuffer = require('./IsDetachedBuffer'); var LengthOfArrayLike = require('./LengthOfArrayLike'); var SetValueInBuffer = require('./SetValueInBuffer'); var ToBigInt = require('./ToBigInt'); var ToNumber = require('./ToNumber'); var ToObject = require('./ToObject'); var ToString = require('./ToString'); var TypedArrayElementSize = require('./TypedArrayElementSize'); var TypedArrayElementType = require('./TypedArrayElementType'); // https://262.ecma-international.org/13.0/#sec-settypedarrayfromarraylike module.exports = function SetTypedArrayFromArrayLike(target, targetOffset, source) { var whichTarget = whichTypedArray(target); if (!whichTarget) { throw new $TypeError('Assertion failed: target must be a TypedArray instance'); } if (targetOffset !== Infinity && (!isInteger(targetOffset) || targetOffset < 0)) { throw new $TypeError('Assertion failed: targetOffset must be a non-negative integer or +Infinity'); } if (isTypedArray(source)) { throw new $TypeError('Assertion failed: source must not be a TypedArray instance'); } var targetBuffer = typedArrayBuffer(target); // step 1 if (IsDetachedBuffer(targetBuffer)) { throw new $TypeError('target’s buffer is detached'); // step 2 } var targetLength = typedArrayLength(target); // step 3 var targetElementSize = TypedArrayElementSize(target); // step 4 var targetType = TypedArrayElementType(target); // step 5 var targetByteOffset = typedArrayByteOffset(target); // step 6 var src = ToObject(source); // step 7 var srcLength = LengthOfArrayLike(src); // step 8 if (targetOffset === Infinity) { throw new $RangeError('targetOffset must be a finite integer'); // step 9 } if (srcLength + targetOffset > targetLength) { throw new $RangeError('targetOffset + srcLength must be <= target.length'); // step 10 } var targetByteIndex = (targetOffset * targetElementSize) + targetByteOffset; // step 11 var k = 0; // step 12 var limit = targetByteIndex + (targetElementSize * srcLength); // step 13 while (targetByteIndex < limit) { // step 14 var Pk = ToString(k); // step 14.a var value = Get(src, Pk); // step 14.b if (IsBigIntElementType(targetType)) { value = ToBigInt(value); // step 14.c } else { value = ToNumber(value); // step 14.d } if (IsDetachedBuffer(targetBuffer)) { throw new $TypeError('target’s buffer is detached'); // step 14.e } SetValueInBuffer(targetBuffer, targetByteIndex, targetType, value, true, 'Unordered'); // step 14.f k += 1; // step 14.g targetByteIndex += targetElementSize; // step 14.h } };