Re: 'Select' errors for a deferred class

Hi Howard,

I think that the problems comes form the fact that when compiling
with gec, it uses the non-void-safe version of EiffelBase.
And EiffelVision2 from $ISE_EIFFEL/library/vision2 is not meant
to be compiled against this version of EiffelBase. You should
try to use the version from $ISE_EIFFEL/compatible/library/vision2
instead.

-- 
Eric Bezault
mailto:[email protected]
http://www.gobosoft.com


On 5/26/2012 6:28 PM, Howard Thomson wrote:
> Hi Eric,
>
> Having done a bootstrap build of 'gec' from the latest git repo today, I
> can confirm that the issue below is, or appears to me to be,
> outstanding.
>
> I did do some browsing of the code in the tools library, but have not
> yet identified how the issue arises or is treated differently by gec vs
> EiffelStudio.
>
> I am using the Eiffel 7.0 Vision2 interface and implementation_interface
> clusters, with my own implementation cluster, essentially everything
> else coming from the current ${GOBO} path ...
>
> I will attempt to create a minimal compilation that demonstrates the
> compilation error, possibly while I am in Prague for the TOOLS 2012
> conference next week [departing at some unearthly hour tomorrow
> morning !].
>
> Cheers,
>
> Howard
>
>
> -----Original Message-----
> From: Eric Bezault<[email protected]>
> To: Gobo Developers Mailing List
> <[email protected]>
> Cc: Howard Thomson<[email protected]>
> Subject: Re: 'Select' errors for a deferred class
> Date: Thu, 24 May 2012 13:16:16 +0200
>
> Hi Howard,
>
> On 5/7/2012 12:19 AM, Howard Thomson wrote:
>> I am using gec and ec to compile a program that uses the Vision2 library
>> from the Eiffel Software distribution.
>>
>> Compiling with gec reports an error:
>>
>> [VMRC-2] class EV_WIDGET_LIST (29,2): replicated features
>> EV_DYNAMIC_LIST.put, EV_CONTAINER.cl_put have not been selected.
>>
>> However, compiling the Vision2 example 'widgets' program, which also
>> uses  EV_WIDGET_LIST, with ec does not report such an error.
>>
>> Does the fact that EV_WIDGET_LIST is a deferred class have anything to
>> do with the difference in error treatment, or is this a probable bug in
>> the current gec implementation ?
>
> Did you manage to understand what the problem was?
> What version of EiffelVision2 did you use? I already compiled
> classes from EiffelVision2 with Gobo in the past, and never
> saw this kind of problem.
>
>




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