public override void Visit(BinOpExpression expression)
{
expression.Left.AcceptVisitor(this);
var type1 = ResultType;
expression.Right.AcceptVisitor(this);
var type2 = ResultType;
if (expression.Operation == BinOps.Add ||
expression.Operation == BinOps.Div ||
expression.Operation == BinOps.Mul ||
expression.Operation == BinOps.Sub)
{
if (type1 == typeof (int))
{
if(type2 == typeof(long))
throw new InvalidProgramException("Operation types are invalid");
ResultType = typeof (int);
}
else if (type1 == typeof (long))
{
if (type2 == typeof (int))
throw new InvalidProgramException("Operation types are invalid");
ResultType = typeof (long);
}
}
}
public override void Visit(BinOpExpression expression)
{
throw new NotImplementedException();
}
public abstract void Visit(BinOpExpression expression);