static LuaObject EvalUnaryExpression(UnaryExpression Expression, LuaContext Context)
{
LuaObject obj = EvalExpression(Expression.Expression, Context)[0];
switch (Expression.Operation)
{
case UnaryOp.Invert:
return(-(obj.AsNumber()));
case UnaryOp.Length:
{
if (obj.Is(LuaType.table))
{
return(obj.AsTable().Count);
}
else
{
return(obj.AsString().Length);
}
}
case UnaryOp.Negate:
return(!(obj.AsBool()));
default:
throw new NotImplementedException();
}
}