[Issue 8748] New: the module name must not be unique in the pack and its subpacks

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8748

           Summary: the module name must not be unique in the pack and its
                    subpacks
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: blazej.podsiadlo at gmail.com


--- Comment #0 from Blazej Podsiadlo <blazej.podsiadlo at gmail.com> 2012-10-03 14:21:07 PDT ---
Created an attachment (id=1145)
the full use case

Hi,
I've got following problem:

It's possible to build following library:

the_lib/
├── sub_pack
│   └── the_mod.d
└── the_mod.d

by following commands:

mkdir -p build/the_lib
mkdir -p build/the_lib/sub_pack

cd build
dmd -c -I../ ../the_lib/sub_pack/the_mod.d -ofthe_lib/sub_pack/the_mod.o
dmd -c -I../ ../the_lib/the_mod.d -ofthe_lib/the_mod.o
dmd -lib -I../ the_lib/the_mod.o the_lib/sub_pack/the_mod.o
-ofthe_lib/libTheLib



However it's not possible to use it later on:

import the_lib.the_mod;
import the_lib.sub_pack.the_mod;
import std.stdio;

void main()
{
        writeln("the_app::main()");
        the_lib.the_mod.the_fun();
        the_lib.sub_pack.the_mod.the_fun();
}

built by:
dmd -c -I../ ../the_app/main.d -ofthe_app/main.o
dmd the_app/main.o the_lib/libTheLib.a  -ofthe_app/main

produces:
../the_app/main.d(2): Error: module the_mod from file
../the_lib/sub_pack/the_mod.d conflicts with another module the_mod from file
../the_lib/the_mod.d

=================

in the same time when I try following code:
[developer at prv-dev-srv dmd-bug]$ cat the_app/clue.d 
import the_lib.sub_pack.the_mod;
import std.stdio;

void main()
{
    writeln("the_app::main()");
    the_lib.sub_pack.the_mod.the_fun();    
}

compiles, but doesn't work as intended:
execution of: the_lib.sub_pack.the_mod.the_fun();
executes code of the_lib.the_mod.the_fun();

I think that case, is much more serious than the first one because leads to
unexpected behaviours and does not produce any warnings/errors.


===================
I've attached the preprepared "project" demonstrating that issue (dmd-bug) and
as well some "workaround" (dmd-fine) where all modules have unique names.

===================
I use DMD 2.60 @ CentOS 6.3 32bit.

Best Regards,
Blazej Podsiadlo

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