Custom default exception handler?

[Adam D. Ruppe]

On Tuesday, 11 February 2014 at 05:09:13 UTC, Nick Sabalausky 
wrote:
>     mixin(handleFail!(() => {
>         ...user code...
>     }));

BTW the ()=> there is unnecessary; when there's no arguments, you 
can just write { code } and it will be recognized as a 
function/delegate. So this would work too:

int handleError(void delegate() dg) {
         try dg();
         catch(Throwable t) return 1;
         return 0;
}

int main() {
         return handleError({

         });
}

(or of course, handleError(alias dg)() works too if you add the 
!).


Still perhaps a bit wordier than installing the handler but I 
don't think it is too bad.

You could also do something like i do in my cgi.d:

void mymain() { code ... }
mixin HandleError!mymain; // HandleError is a mixin tempalte that 
provides main(), does arg/exception handling, and returns the 
right value