internal ArrayBufferPrototype(
Engine engine,
Realm realm,
ArrayBufferConstructor constructor,
ObjectPrototype objectPrototype) : base(engine, 0)
{
_prototype = objectPrototype;
_realm = realm;
_constructor = constructor;
}
/// <summary>
/// https://tc39.es/ecma262/#sec-clonearraybuffer
/// </summary>
internal ArrayBufferInstance CloneArrayBuffer(
ArrayBufferConstructor constructor,
int srcByteOffset,
uint srcLength)
{
var targetBuffer = constructor.AllocateArrayBuffer(_engine.Realm.Intrinsics.ArrayBuffer, srcLength);
AssertNotDetached();
var srcBlock = _arrayBufferData;
var targetBlock = targetBuffer.ArrayBufferData;
// TODO SharedArrayBuffer would use this
//CopyDataBlockBytes(targetBlock, 0, srcBlock, srcByteOffset, srcLength).
System.Array.Copy(srcBlock, srcByteOffset, targetBlock, 0, srcLength);
return(targetBuffer);
}
