improving scope(finally/success)

[Steven Schveighoffer via Digitalmars-d]

On 12/3/15 10:24 AM, Chris Wright wrote:
> You can already do it with a slight change, and it's not so painful, at
> least in simple functions:
>
> int foo(bool b) {
>    auto result = 2;
>    scope(exit) writeln(result);
>    if (b) {
>      result = 1;
>    }
>    return result;
> }
>

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);

-Steve