Hello everyone,
I'm new on this mailing list, this is my first mail :-)
I'm a student from University of Lille (France). I'm studying this tutorial 
(I'm using Pharo 4 but it seems not to be a problem): 
http://sdmeta.gforge.inria.fr/Teaching/ObjVLisp/ObjV.pillar.pdf. I'm working 
with the "ObjVLispSkeleton-StephaneDucasse.1" image loaded from this repository:

MCSmalltalkhubRepository owner: 'StephaneDucasse' project: 'ObjVLispSkeleton' 
user: '' password: ''

I'm stuck at "Method Lookup" p11. First, it seems that unit tests 
"testNilWhenErrorInLookup" and "testRaisesErrorSendWhenErrorInLookup" are not 
provided, thus I'm not sure that I'm working with the right image (everything 
was fine until p11 though). Then, the "lookup: selector" is not provided 
neither. While there is another method named "lookup: selector from: 
anObjObject", I can't figure out what I'm supposed to do with the second 
parameter. Here is what I would do:

lookup: selector "look for the method named <selector> starting in the 
receiver.  The lookup is done for a message sent to <anObjObject>. self is an 
objClass" ^ self objMethodDict at: selector ifAbsent: [ self objSuperclassId 
ifNotNil: [ self objSuperclass lookup: selector ] ]

Could someone tell me if this implementation is correct? If it's correct, what 
do you think the second parameter is for? 
Moreover, do you think I'm working with the right image?
Thanks.
- Edouard

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