DMD 1.026 and 2.010 releases

[Sean Kelly]

Sean Kelly wrote:
> Jason House wrote:
>> Sean Kelly Wrote:
>>> Why can't an interface be deleted?
>>> We currently do this in a number of places within Tango, and I'm
>>> delaying upgrading to DMD 1.026 for now because of this.
>> This isn't specific to D 1.026.  It's an area of unstable behavior that's been in dmd for quite a while.  It bit me, and I submitted a bug report.  I interpret what happened in D 1.026 to be a temporary patch to help prevent others from hitting this type of issue.  It may help to post the functional cases from tango to the bug report to help Walter diagnose/fix the problem.
> 
> I know.  But it seems strange to me that the fix is to simply disallow
> the use of 'scope' with interfaces.  How are interfaces different from
> classes in this regard?  Why not just fix the codegen?

Oh, as for the functional cases, they're just what I described.  A
function returning an interface that doesn't need to escape the calling
function.  In this instance, using 'scope' seems like a natural solution.


Sean