On Wednesday, 5 June 2013 at 22:31:21 UTC, Andrei Alexandrescu
wrote:
https://github.com/D-Programming-Language/dmd/pull/2139
Andrei
I had a spin[1] with it long before Adam Wilson made it so
popular topic. Feature was frequently mentioned on IRC as
desired. Unfortunately I faced few holes in both Martin's and
Andrei's DIPs and gave up on implementing it.
Few issues I remember were:
---
module std.datetime.core;
class Foo {}
module std.datetime.calendar;
class Foo {}
module std.datetime;
public import std.datetime.core;
public import std.datetime.calendar;
module usage;
import std.datetime;
Foo x; // is it std.datetime.core or std.datetime.calender?
// ok workaround..
std.datetime.Foo x; // same issue as above
std.datetime.core.Foo x; // works atleast
---
My point is, are directions Jonathan wants to go are right?
I think std.datetime.Foo shouldn't be available.
I remember also having some issues with ambiguous symbols. I had
more corner cases in IRC Logs, but can't find it now.
Also I see we are going with Andrei's DIP route.
It is worth noting that Martin's one may have some additional
functionality.
Like glueing modules. Ie.
---
module std.net;
public import std.net.http;
public import std.net.uri;
shared(Uri) uri = new shared(Uri);
---
In Martin's proposal uri symbol is reachable via
std.net.__init__.uri in case of ambiguous. In Andrei's it is
unreachable due to package being keyword.
I am glad Walter is tackling it, because it is really useful
feature, but please take a chill pill and rethink all corner
cases.
[1] https://github.com/nazriel/dmd/tree/dip16++
