http://d.puremagic.com/issues/show_bug.cgi?id=7122

           Summary: [module] compiler fails to handle import of renamed
                    module
           Product: D
           Version: D2
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: dawg@dawgfoto.de


--- Comment #0 from dawg@dawgfoto.de 2011-12-16 21:19:16 PST ---
---- a0.d ----
module foo;
---- a1.d ----
module a1;
import a0;
--------------
dmd -lib a0.d a1.d
--------------
a1.d(2): Error: module foo from file a0.d conflicts with another module foo
from file a0.d
--------------

The compiler should detect this import as an already known module. This is important when splitting a module into declaration and definition when the defining file should be located in a path that doesn't match the module name.

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Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |andrej.mitrovich@gmail.com
         Resolution|                            |INVALID


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2012-12-27 08:57:53 PST ---
You can use whatever filename you want but you have to use the name in the module declaration when importing. See also Issue 4479

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--- Comment #2 from Martin Nowak <code@dawg.eu> 2013-01-08 14:50:24 PST ---
Then per module compilation can't work.
dmd -c a1.d
How is the compiler able to know which file contains module a1?

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--- Comment #3 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-01-08 15:18:10 PST ---
(In reply to comment #2)
> Then per module compilation can't work.
> dmd -c a1.d

Works fine here.

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--- Comment #4 from Martin Nowak <code@dawg.eu> 2013-01-08 15:54:25 PST ---
>but you have to use the name in the
module declaration when importing

---
cat > a0.d << CODE
module foo;
CODE

cat > a1.d << CODE
import foo;
CODE

dmd -c a1.d
---
a1.d(1): Error: module foo is in file 'foo.d' which cannot be read
---

How is the compiler to know where to find the module foo?

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--- Comment #5 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-01-08 16:45:42 PST ---
(In reply to comment #4)
> a1.d(1): Error: module foo is in file 'foo.d' which cannot be read

Right my bad, I used the wrong import. You can however use -c with multiple files as a workaround.

Walter will have to comment on this.

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--- Comment #6 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-01-09 07:07:42 PST ---
Note that Walter recently confirmed the following is a bug: http://d.puremagic.com/issues/show_bug.cgi?id=9194

I can't find the NG post, but I filed that after he confirmed it.

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