http://d.puremagic.com/issues/show_bug.cgi?id=8506

           Summary: segault when using map with template delegate
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: druntime
        AssignedTo: nobody@puremagic.com
        ReportedBy: deadalnix@gmail.com


--- Comment #0 from deadalnix <deadalnix@gmail.com> 2012-08-04 04:54:03 PDT ---
import std.algorithm;
import std.array;

class A {
    B[] b;
}

class B {}

void main() {
    A a;

    a.b = a.b.map!(b => b)().array();
}

This code segfault in invariant._d_invariant with dmd 2.060 . This ork fine with (B b) { return b; } as delegate.

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--- Comment #1 from Kenji Hara <k.hara.pg@gmail.com> 2012-08-04 10:22:27 PDT ---
(In reply to comment #0)
> import std.algorithm;
> import std.array;
> 
> class A {
>     B[] b;
> }
> 
> class B {}
> 
> void main() {
>     A a;
> 
>     a.b = a.b.map!(b => b)().array();
> }
> 
> This code segfault in invariant._d_invariant with dmd 2.060 . This ork fine with (B b) { return b; } as delegate.

The variable a is class, and initialized with null, then this code never works.

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--- Comment #2 from deadalnix <deadalnix@gmail.com> 2012-08-04 10:57:04 PDT ---
(In reply to comment #1)
> (In reply to comment #0)
> > import std.algorithm;
> > import std.array;
> > 
> > class A {
> >     B[] b;
> > }
> > 
> > class B {}
> > 
> > void main() {
> >     A a;
> > 
> >     a.b = a.b.map!(b => b)().array();
> > }
> > 
> > This code segfault in invariant._d_invariant with dmd 2.060 . This ork fine with (B b) { return b; } as delegate.
> 
> The variable a is class, and initialized with null, then this code never works.

Ooops, it seems I failed to reduce the bug to a simple case (I actually introduced a new problem of my own, you are right). And if I initialize a, the segfault don't occur. This bug report is invalid, I'll create a new one with some help of dustmite.

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--- Comment #3 from deadalnix <deadalnix@gmail.com> 2012-08-06 13:40:32 PDT ---
http://d.puremagic.com/issues/show_bug.cgi?id=8514

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Maxim Fomin <maxim@maxim-fomin.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |maxim@maxim-fomin.ru
         Resolution|                            |DUPLICATE


--- Comment #4 from Maxim Fomin <maxim@maxim-fomin.ru> 2012-10-26 11:45:18 PDT ---
*** This issue has been marked as a duplicate of issue 8514 ***

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