public InterpreterResult Visit(UnaryOpNode node, Context context)
{
InterpreterResult numResult = Visit(node.Node, context);
if (numResult.Error != null)
{
return(numResult);
}
if (node.Op_tok.Matches(TokenType.KEYWORD, "not"))
{
if (!(numResult.Result is Binary))
{
return(new InterpreterResult(null, new RuntimeError($"Expected boolean expression", node.Node.Pos_Start, node.Node.Pos_End, context)));
}
Binary bin = numResult.Result;
return(bin.SetPos(node.Pos_Start, node.Pos_End).Notted());
}
else
{
Number num = numResult.Result;
if (node.Op_tok.Type == TokenType.Minus)
{
return(num.SetPos(node.Pos_Start, node.Pos_End).Multed_by(new Number(-1)));
}
return(num);
}
}
public Binary Copy()
{
Binary copy = new Binary(this.Value);
copy.SetPos(this.Start_pos, this.End_pos);
copy.SetContext(this.Context);
return(copy);
}
