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very strange error with do: !!!

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simple question about OSProcress

Nicolas Anquetil

14 Aug 2015 14 Aug '15

4:26 p.m.

How is this possible? aCollection is an array with 1 element (an AdaParameter ...) but each in the do: block contains nil (so the add: gives a DNU) !?!?!? I have no idea how this can be possible Any clue nicolas

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Guillaume Larcheveque

14 Aug 14 Aug

4:31 p.m.

New subject: very strange error with do: !!!

can you show one step above in the stack because your problem is in the #add: of FMMultivalue link 2015-08-14 16:26 GMT+02:00 Nicolas Anquetil <nicolas.anquetil(a)inria.fr>fr>:

How is this possible? aCollection is an array with 1 element (an AdaParameter ...) but each in the do: block contains nil (so the add: gives a DNU) !?!?!? I have no idea how this can be possible Any clue nicolas _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev

-- *Guillaume Larcheveque*

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Nicolas Anquetil

4:53 p.m.

New subject: very strange error with do: !!!

this is the normal FMMultiValueLink>>add: anElement anElement perform: opposite with: owner. (values includes: anElement) not ifTrue: [ values add: anElement ]. ^anElement it fails because anElement is nil (because each was nil in previous step) nicolas On 14/08/2015 11:31, Guillaume Larcheveque wrote:

can you show one step above in the stack because your problem is in the #add: of FMMultivalue link 2015-08-14 16:26 GMT+02:00 Nicolas Anquetil <nicolas.anquetil(a)inria.fr <mailto:nicolas.anquetil@inria.fr>>: How is this possible? aCollection is an array with 1 element (an AdaParameter ...) but each in the do: block contains nil (so the add: gives a DNU) !?!?!? I have no idea how this can be possible Any clue nicolas _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch <mailto:Moose-dev@iam.unibe.ch> https://www.iam.unibe.ch/mailman/listinfo/moose-dev -- *Guillaume Larcheveque* _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev

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Nicolas Anquetil

6:07 p.m.

New subject: very strange error with do: !!!

after investigation, the problem seems to lie in a complicated scenario where I ended up modifying the list that I was iterating on. nicolas On 14/08/2015 11:53, Nicolas Anquetil wrote:

this is the normal FMMultiValueLink>>add: anElement anElement perform: opposite with: owner. (values includes: anElement) not ifTrue: [ values add: anElement ]. ^anElement it fails because anElement is nil (because each was nil in previous step) nicolas On 14/08/2015 11:31, Guillaume Larcheveque wrote:

can you show one step above in the stack because your problem is in the #add: of FMMultivalue link 2015-08-14 16:26 GMT+02:00 Nicolas Anquetil <nicolas.anquetil(a)inria.fr <mailto:nicolas.anquetil@inria.fr>>: How is this possible? aCollection is an array with 1 element (an AdaParameter ...) but each in the do: block contains nil (so the add: gives a DNU) !?!?!? I have no idea how this can be possible Any clue nicolas _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch <mailto:Moose-dev@iam.unibe.ch> https://www.iam.unibe.ch/mailman/listinfo/moose-dev -- *Guillaume Larcheveque* _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev

_______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev

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Guillaume Larcheveque
Nicolas Anquetil