protected override Type resolveOperatorType(Context ctx, Type leftType, Type rightType)
{
if (leftType.IsAnyOf(typeof (int), typeof (long)) && rightType == typeof (int))
return leftType;
if (!IsLeft && ctx.CanCombineDelegates(leftType, rightType))
return ctx.CombineDelegates(leftType, rightType);
return null;
}