public static EcmaValue DefineProperty(EcmaValue target, EcmaValue property, EcmaValue attributes)
{
Guard.ArgumentIsObject(target);
RuntimeObject obj = target.ToObject();
obj.DefinePropertyOrThrow(EcmaPropertyKey.FromValue(property), EcmaPropertyDescriptor.FromValue(attributes));
return(target);
}
public static EcmaValue DefineProperties(EcmaValue target, EcmaValue properties)
{
Guard.ArgumentIsObject(target);
RuntimeObject dst = target.ToObject();
foreach (EcmaPropertyEntry e in properties.ToObject().GetEnumerableOwnProperties(true))
{
dst.DefinePropertyOrThrow(e.Key, EcmaPropertyDescriptor.FromValue(e.Value));
}
return(target);
}
public static EcmaValue[] CreateListFromArrayLike(EcmaValue value)
{
Guard.ArgumentIsObject(value);
long len = value[WellKnownProperty.Length].ToLength();
EcmaValue[] arr = new EcmaValue[len];
for (long i = 0; i < len; i++)
{
arr[i] = value[i];
}
return(arr);
}
private bool TryGetResult(EcmaPropertyKey propertyKey, EcmaValue value, out bool done, out EcmaValue result)
{
RuntimeObject method = target.GetMethod(propertyKey);
if (method == null)
{
result = value;
done = true;
return(false);
}
EcmaValue obj = method.Call(target, value);
Guard.ArgumentIsObject(obj);
done = obj[WellKnownProperty.Done].ToBoolean();
result = obj[WellKnownProperty.Value];
return(true);
}
public bool MoveNext(params EcmaValue[] value)
{
if (this.done)
{
return(false);
}
EcmaValue result = this.nextMethod.Call(this.iterator, value);
Guard.ArgumentIsObject(result);
if (result[WellKnownProperty.Done])
{
this.done = true;
return(false);
}
this.Current = result[WellKnownProperty.Value];
return(true);
}