public PrinterNode Visit(UnaryOperationNode node)
{
var pNode = new PrinterNode(node.Operation.StringValue);
pNode.AddChild(node.Expr.Accept(this));
return(pNode);
}
public bool Visit(UnaryOperationNode node)
{
//todo: special treat with pointers ^, @
if (node.Type != null)
{
return(true);
}
node.Expr.Accept(this);
// constraints to not
if (node.Operation is ReservedToken reservedToken && reservedToken.Value == Constants.Words.Not)
{
if (!(node.Expr.Type is SymInt || node.Expr.Type is SymBool || node.Expr.Type is SymChar))
{
throw BuildException <OperatorNotOverloaded>(node.Expr.Type, node.Operation);
}
node.Type = node.Expr.Type;
return(true);
}
node.Type = node.Expr.Type;
switch (node.Operation)
{
case OperatorToken op:
switch (node.Expr.Type)
{
case SymInt _:
case SymDouble _:
return(true);
}
break;
case ReservedToken word:
switch (word.Value)
{
case Constants.Words.Not:
switch (node.Type)
{
case SymInt _:
return(true);
}
break;
}
break;
}
throw BuildException <OperatorNotOverloaded>(node.Expr.Type, node.Operation);
}
