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digitalmars.D.bugs - [Issue 3381] New: [tdpl] Incorrect assessment of overriding in triangular-shaped hierarchy

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=3381

           Summary: [tdpl] Incorrect assessment of overriding in
                    triangular-shaped hierarchy
           Product: D
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: andrei metalanguage.com


--- Comment #0 from Andrei Alexandrescu <andrei metalanguage.com> 2009-10-08
20:36:16 PDT ---
This code doesn't compile:

interface VisualElement {
   void draw();
}

interface Actor {
}

interface VisualActor : Actor, VisualElement {
}

class Sprite3 : Actor, VisualActor {
    override void draw() { }
}

The error message is:

Error: function test.Sprite3.draw does not override any function

If I comment out the implementation of draw I get:

Error: class test.Sprite3 interface function VisualElement.draw isn't
implemented

Of course, both of these can't be true at the same time :o). The original
program should compile and run properly.

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Gide Nwawudu <gide nwawudu.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic, rejects-valid
                 CC|                            |gide nwawudu.com
         OS/Version|Linux                       |All


--- Comment #1 from Gide Nwawudu <gide nwawudu.com> 2009-10-09 02:10:50 PDT ---
Looks like at dup of bug 3023.

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Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch
                 CC|                            |clugdbug yahoo.com.au


--- Comment #2 from Don <clugdbug yahoo.com.au> 2009-10-19 12:13:55 PDT ---
Ha! Compiler bugs are not usually this silly.
Applies to D1 as well. This also fixes bug 3023. I suspect it probably fixes
some other bugs too -- I'm amazed multiple inheritance has worked at all.
class.c, line 1198. 

    // Skip if b has already appeared
    for (int k = 0; k < i; k++)
    {
-        if (b == interfaces[i])
+        if (b == interfaces[k])
        goto Lcontinue;
    }

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Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |larsivar igesund.net


--- Comment #3 from Don <clugdbug yahoo.com.au> 2009-10-19 12:15:37 PDT ---
*** Issue 3023 has been marked as a duplicate of this issue. ***

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Leandro Lucarella <llucax gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |llucax gmail.com


--- Comment #4 from Leandro Lucarella <llucax gmail.com> 2009-10-19 12:46:00
PDT ---
I wonder you (Andrei) don't search for existing bugs instead of blindly
creating new ones =(

If you want to mark all TDPL bugs by prefixing [tldp] to the subject, you can
edit the old bug's title.

I'm saying this because I saw several bugs which were duplicates of old ones.

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--- Comment #5 from Andrei Alexandrescu <andrei metalanguage.com> 2009-10-19
12:55:57 PDT ---
(In reply to comment #4)
 I wonder you (Andrei) don't search for existing bugs instead of blindly
 creating new ones =(
 
 If you want to mark all TDPL bugs by prefixing [tldp] to the subject, you can
 edit the old bug's title.
 
 I'm saying this because I saw several bugs which were duplicates of old ones.

I'll try to look harder. My problem is that I never know what keywords to look for. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
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Bill Baxter <wbaxter gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |wbaxter gmail.com


--- Comment #6 from Bill Baxter <wbaxter gmail.com> 2009-11-22 06:53:43 PST ---
Looks like bug 2252 might be the same thing too.

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--- Comment #7 from Leandro Lucarella <llucax gmail.com> 2009-11-22 14:33:12
PST ---
SVN commit: http://www.dsource.org/projects/dmd/changeset/262

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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla digitalmars.com
         Resolution|                            |FIXED


--- Comment #8 from Walter Bright <bugzilla digitalmars.com> 2009-12-06
00:46:29 PST ---
Fixed dmd 1.053 and 2.037

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