Referencing an overloaded function

[Artur Skawina]

On 03/24/12 23:10, Timon Gehr wrote:
> On 03/24/2012 09:07 PM, Philippe Sigaud wrote:
>> On Sat, Mar 24, 2012 at 18:07, Artur Skawina<art.08.09 at gmail.com>  wrote:
>>
>>>>      foreach (f; __traits(getOverloads, __traits(parent, main), "foo")) {
>>
>> Hey, this
>> ^^^^^^^^^^^^^^^^^^^^^^
>> it's a way to get the current module, right? Nice trick, I didn't think of this.
>>
>> Its limitation is it won't work outside the 'main() {}' module.
> 
> 
> You can get the parent of an alias. The following template finds all overloads of a given symbol:
> 
> template ID(T...){alias    T ID;}
> template getOverloads(alias f){
>     enum fname = f.stringof[0..f.stringof.indexOf("(")];
>     alias ID!(__traits(getOverloads, __traits(parent, f), fname)) getOverloads;
> }
> 
> I think this should go into std.traits, as soon as it works. (DMD is buggy when it comes to taking the .stringof of a function. It misinterprets it as a property function call in some cases but not in others. Messy.)

Yeah, your version does not work with my old GDC either (stringof returns really weird
things here...);  this one works:

template ID(T...) { alias T ID; }
template getOverloads(alias F) {
   alias ID!(__traits(getOverloads, __traits(parent, F), __traits(identifier, F))) getOverloads;
}

and looks obvious enough; it would be nice to get rid of that extra ID step,
though.

artur