On Sunday, 24 March 2019 at 12:45:13 UTC, Francesco Mecca wrote:
https://run.dlang.io/is/zRcj59
```
alias Alg = Algebraic!(int, string);
void main()
{
int n = 2;
Alg value;
value = n == 2 ? 2 : "string";
}
```
The original code used SumType but the effect is the same.
I suppose that I could write the following:
```
if(n == 2) value = 2;
else value = "string";
```
Is there a workaround for this that maintains a similar
syntactic structure?
is this behaviour accepted or should the compiler translate the
first case in the second?
You could make a Choose function:
auto Ch(A,B)(bool c, A a, B b);
Then
value = Ch(n == 2, n, "string");
Not much different than
value = (n == 2) ? Alg(2) : Alg("string");
except you don't have to write Alg all the time.
The compiler should translate the first but that requires
implicit conversion of any of the types T... to Algebraic!T... .
Of course, that should be possible but is it?
