• d-bugmail puremagic.com Sep 03 2009
• d-bugmail puremagic.com Sep 07 2009
• d-bugmail puremagic.com Sep 07 2009
• d-bugmail puremagic.com Sep 08 2009
• d-bugmail puremagic.com Sep 08 2009
• d-bugmail puremagic.com Sep 11 2009
• d-bugmail puremagic.com Nov 15 2010

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=3293

           Summary: A few more bugs with template mixins with identifiers
           Product: D
           Version: 2.031
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Keywords: ice-on-valid-code, rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: 2korden gmail.com


template ReferenceType(T)
{
    alias T* ReferenceType;
}

struct SomeRange(T, alias Storage = 0)
{
    bool foo()
    {
        return guard == guard;    // bug 1: replace == with is and DMD crashes
with no output
    }

    enum guard = cast(ReferenceType!(T))SomeContainer!(T, Storage).guard;
}

struct SomeContainer(T, alias Storage = 0)
{
    auto opSlice()    // bug 2: replace auto with SomeRange!(T, Storage) and
get an ICE
    {
        return SomeRange!(T, Storage)();
    }

    enum ReferenceType!(T) guard =
cast(ReferenceType!(T))cast(void*)0xFEFEFEFE;    // bug 3: remove guard type
and DMD crashes with no output
}

class A
{
    SomeRange!(int, 0) test()    // bug 4: 0 is not omissible
    {
        return SomeContainer!(int)()[];
    }
}

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=3293


Don <clugdbug yahoo.com.au> changed:

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


--- Comment #1 from Don <clugdbug yahoo.com.au> 2009-09-07 03:18:35 PDT ---
(1) I can't see 'mixin' anywhere in any of these bugs!
(2) Cannot reproduce bug 3. 
(3) Please don't report multiple bugs in a single bug report. There are
definitely at least 3 different bugs in here.
Bug 1 is Segfault(statement.c)
bug 2 is ICE(expression.c)
bug 4 is a rejects-valid.

It's possible they all have the same root cause, but I doubt it.

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d-bugmail puremagic.com writes:

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--- Comment #2 from Don <clugdbug yahoo.com.au> 2009-09-07 08:29:30 PDT ---
Bug 1 is now its own issue, bug 3304.
Bug 3 is now its own issue, bug 3305.
They are completely unrelated to one another.

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--- Comment #3 from Don <clugdbug yahoo.com.au> 2009-09-08 08:51:49 PDT ---
Here's a reduced test case for the second bug, which is ICE(expression.c).
Something to do with recursive alias parameters causing data corruption.
Only happens if there is an infinite template expansion, so I think this one is
ice-on-invalid-code. Somehow defining the return type as 'auto' circumvents the
infinite expansion -- but I'm not sure that it should.

---
alias const(void*) VoidPtr;

struct SomeRange(alias Storage){
    const guard = cast(const void *)Bug3293!(Storage).guard;
}

struct Bug3293(alias Storage){
    SomeRange!(Storage) foo;
    const VoidPtr guard = cast(void *)345;
}

SomeRange!(0)  a = Bug3293!(0)().foo;

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=3293


Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|ice-on-valid-code,          |ice-on-invalid-code
                   |rejects-valid               |
            Summary|A few more bugs with        |ICE(expression.c) recursive
                   |template mixins with        |alias template parameters
                   |identifiers                 |


--- Comment #4 from Don <clugdbug yahoo.com.au> 2009-09-08 13:30:18 PDT ---
And the fourth bug has been moved to bug 3307. I'm therefore changing the title
to reflect the remaining bug, as described in comment 3.

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--- Comment #5 from Koroskin Denis <2korden gmail.com> 2009-09-11 02:03:32 PDT
---
Thanks and sorry for confusion!

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d-bugmail puremagic.com writes:

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Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


--- Comment #6 from Don <clugdbug yahoo.com.au> 2010-11-15 00:17:40 PST ---
Fixed DMD2.047.

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