public static TResult Match <TResult, T0, T1, T2>(
this TUnion <T0, T1, T2> u,
Func <T0, TResult> f0,
Func <T1, TResult> f1,
Func <T2, TResult> f2
)
{
return(u.Match(
ab => ab.Match(f0, f1),
f2
));
}
public static TResult Match <TResult, T0, T1>(
this TUnion <T0, T1> u,
Func <T0, TResult> f0,
Func <T1, TResult> f1
)
{
var(val, ind) = u.Value();
switch (ind)
{
case 0:
return(f0((T0)val));
case 1:
return(f1((T1)val));
default:
throw new Exception("can't match");
}
}
