public override ASTN VisitAddsub([NotNull] AddsubContext context)
{
ExprNode Leftexpr = (VisitExpr(context.left) as ExprNode);
ExprNode Rigthexpr = (VisitExpr(context.right) as ExprNode);
AritmethicNode node;
if (context.op.Type == ADD)
{
node = new PlusNode(context);
}
else
{
node = new ResNode(context);
}
node.Leftexpr = Leftexpr;
node.Rigthexpr = Rigthexpr;
return(node);
}
int Visit(AddsubContext context)
{
try
{
int l = (int)Visit(context.left);
int r = (int)Visit(context.right);
if (context.op.Type == ADD)
{
return(l + r);
}
else
{
return(l - r);
}
}
catch
{
Console.WriteLine("Las variables no son enteras");
return(0);
}
}
