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KennyTM~
kennytm at gmail.com
Mon May 30 10:41:56 PDT 2011
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);
}
...
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