public static LuaValue UnaryOp(OpCode opcode, LuaValue a)
{
switch (opcode)
{
case OpCode.UNM:
if (a.ValueType == ValueType.Integer)
{
return(new LuaValue(-a.ConvertToInt()));
}
else
{
return(new LuaValue(-a.ConvertToFloat()));
}
case OpCode.BNOT:
return(new LuaValue(~a.ConvertToInt()));
case OpCode.NOT:
return(new LuaValue(!a.ConvertToBool()));
default:
throw new Exception("invalid opcode " + opcode);
}
}