private dynamic visit_UnaryNode(dynamic node_, Context context)
{
RuntimeResult rts = new RuntimeResult();
dynamic number = rts.register(visit(node_.node, context));
Errors error = null;
if (rts.error != null)
{
return(rts);
}
if (node_.token.type == Tokens.tMinus)
{
(number, error) = ((dynamic, Errors))number.multiply(new Number(-1));
}
if (error != null)
{
return(rts.failure(error));
}
else
{
number.setPosition(node_.start, node_.end);
number.setContext(context);
return(rts.success(number));
}
}
private dynamic visit_OperationNode(dynamic node_, Context context)
{
RuntimeResult rts = new RuntimeResult();
dynamic left = rts.register(visit(node_.leftNode, context));
Errors error = null;
if (rts.error != null)
{
return(rts);
}
dynamic right = rts.register(visit(node_.rightNode, context));
if (rts.error != null)
{
return(rts);
}
dynamic result = null;
if (node_.token.type == Tokens.tPlus)
{
(result, error) = ((dynamic, Errors))left.add(right);
}
else if (node_.token.type == Tokens.tMinus)
{
(result, error) = ((dynamic, Errors))left.subtract(right);
}
else if (node_.token.type == Tokens.tMul)
{
(result, error) = ((dynamic, Errors))left.multiply(right);
}
else if (node_.token.type == Tokens.tDiv)
{
(result, error) = ((dynamic, Errors))left.divide(right);
}
else
{
Console.WriteLine("Unidentified operator error");
}
if (error != null)
{
return(rts.failure(error));
}
else
{
result.setPosition(node_.start, node_.end);
result.setContext(context);
return(rts.success(result));
}
}