public static PromiseCapability CreateFromConstructor(RuntimeObject constructor)
{
Guard.ArgumentNotNull(constructor, "constructor");
PromiseCapability capability = new PromiseCapability();
capability.Promise = constructor.Construct((Action <EcmaValue, EcmaValue>)capability.Executor);
capability.EnsureValidResolver();
return(capability);
}
public ArrayBuffer Slice(long start, long end)
{
ThrowIfBufferDetached();
long thisLength = buffer.Buffer.Length;
start = start < 0 ? Math.Max(thisLength + start, 0) : Math.Min(start, thisLength);
end = end < 0 ? Math.Max(thisLength + end, 0) : Math.Min(end, thisLength);
long newLength = Math.Max(end - start, 0);
RuntimeObject constructor = GetSpeciesConstructor(this, this.IsShared ? WellKnownObject.SharedArrayBuffer : WellKnownObject.ArrayBuffer);
ArrayBuffer other = constructor.Construct(newLength).GetUnderlyingObject <ArrayBuffer>();
if (other == this)
{
throw new EcmaTypeErrorException(InternalString.Error.BufferSubClassReturnThis, this.GetType().Name);
}
if (other.IsShared != this.IsShared)
{
throw new EcmaTypeErrorException(InternalString.Error.BufferIncompatible, this.GetType().Name);
}
CopyBytes(this, start, other, 0, newLength);
return(other);
}
public static TypedArray SpeciesCreate(TypedArray source, params EcmaValue[] args)
{
RuntimeObject constructor = RuntimeObject.GetSpeciesConstructor(source, TypedArrayInfo.GetDefaultConstructor(source.ArrayKind));
return(constructor.Construct(args).GetUnderlyingObject <TypedArray>());
}
