DIP11: Automatic downloading of libraries

[Daniel Gibson]

Am 14.06.2011 18:35, schrieb Andrei Alexandrescu:
> On 6/14/11 11:32 AM, Graham Fawcett wrote:
>> On Tue, 14 Jun 2011 15:59:15 +0000, Adam D. Ruppe wrote:
>>
>>>> One other interesting aspect is that the string literal can be
>>>> CTFE-constructed,
>>>
>>> Oh, or it could be in version {} blocks. I like that.
>>>
>>> I think we should actually whip up a working model. It needn't be a
>>> compiler feature at this point - we can use pragma(msg, "BUILD: " ~
>>> param) for now and have a helper program scan dmd's output.
>>
>> +1, sounds fun. :)
>>
>> Rather than pragma(msg), you could also use pragma(liburl), and run dmd
>> with "-ignore -v". You can parse the pragma from there. (I think you'd
>> need to write `pragma(liburl, "name-in-quotes", "url-in-quotes")`, a
>> slight diversion from Andrei's syntax, but otherwise it would work.)
>>
>> Graham
> 
> I just realized that one advantage of the download being integrated in
> the compiler is that the compiler is the sole tool with full knowledge
> and control of what modules are imported. A tool could repeatedly run
> the compiler with -v and see what modules it couldn't load, to then
> download them. (Also, of course, a tool could rely on extralinguistic
> library management control that has its own advantages and disadvantages
> as we discussed.)
> 
> Andrei

Hmm I thought somebody (possibly Walter) mentioned adding something to
the compiler that makes this more easy (probably outputting all imports
or all imports that are not in Phobos or something like that).
Unfortunately my memory is to vague to find the corresponding message or
to even remember what exactly was done - maybe somebody else remembers it?