improving scope(finally/success)

[Artur Skawina via Digitalmars-d]

On 12/03/15 16:33, Steven Schveighoffer via Digitalmars-d wrote:
> auto ref logCall(alias f, Args...)(auto ref Args args) {
>    auto ref printResult(T)(auto ref T t)
>    {
>       writeln(t);
>       return t;
>    }
>    return printResult(f(args))
> }
> 
> logCall!foo(true);

Which will happily accept:

   bool foo(ref bool a) { return a=false; }


And, yes, it can be dealt with via a bit of introspection, but
nobody will bother in practice (consider that 'f' may be
overloaded). So it doesn't really work for non-trivial or
generic code.

artur