Try/Catch with version condition

[Jacob Carlborg]

On 2019-04-09 19:07, aliak wrote:

> Aye, I'd do the same. And if you want to generalize it then maybe 
> something like:
> 
> void call(alias func)() {
>      version (foo) {
>          try {
>              func();
>          } catch (Exception e) {
>              writeln(e);
>          }
>      } else {
>          func();
>      }
> }
> 
> void main() {
>      call!(() { throw new Exception("Boo"); } );
> }
> 
> On a side note, this doesn't work: "call!(() => throw new 
> Exception("Boo"))". Is there any reason throw *has* to be a statement 
> and not an expression?

Here's an alternative, although "throw" is duplicated:

void call(lazy Exception func) {
     version (foo) {
         try {
             throw func();
         } catch (Exception e) {
             writeln(e);
         }
     } else {
         throw func();
     }
}
void main()
{
     call(new Exception("Boo"));
}


-- 
/Jacob Carlborg