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[Timon Gehr]

> On May 31, 11 00:59, Jose Armando Garcia wrote:
> [snip]
>>
>> Walter, what do you think about adding __MODULE__ to the language? It
>> will work similar to __FILE__ and __LINE__ but instead get replaced by
>> the name of the module. This would be really useful for std.log's
>> verbosity filtering feature.
>>
>> I can send a pull request once I am familiar with dmd's code.
>>
>> Thanks,
>> -Jose
>
> I'd recommend making __MODULE__ return the actual module object instead
> of the module name, in case anybody wants to implement it. The latter
> can be easily got by __MODULE__.stringof[7..$] or parsing
> std.traits.mangledName!__MODULE__ if you need the fully-qualified name,
> but the reverse is not true.
>
> Moreover, making __MODULE__ a true module object allows a global scope
> be passed around implicitly, e.g. currently you need to write
>
>      int f(int x) { return x*x-2; }
>      void main() {
>        auto m = map!((y){ return f(y)+1; })([1,6,8]);
>        //            ^^^^^^^^^^^^^^^^^^^^^ ugly
>
> but with __MODULE__ it is possible to reduce the syntactic noise:
>
>        auto m = map!"f(a)+1"([1,6,8]);
>
> by declaring std.functional.unaryFun as
>
>      template unaryFun(alias f, ....., alias mod=__MODULE__) {
>         ...
>         with (mod) {
>           mixin(f);
>         }
>         ...

While this is already quite useful, stuff like this wont work:
import std.algorithm;
void main(){
    int f(int x){return x*x-2;}
    auto m = map!"f(a)+1"([1,6,8]);
}

What you'd actually want to pass implicitly is a local __SCOPE__, not a global
__MODULE__ scope.

Timon