Thanks Denis.

There is refactoring which sadly not available from menu. But you can evaluate it manually:

(RBGenerateEqualHashRefactoring className: #YourClass variables: #(var1 var2)) execute

My problem is display in this image. In the left the inspector display all the items in the bag ( it's right ) In the right the inspector display the relative Occurences, but some are set to 0. Because ? Thanks for considerations, Dario

2017-02-20 13:46 GMT+01:00 Trussardi Dario Romano <dario.trussardi@tiscali.it>: Ciao,

i works with Pharo 4.0 environment.

I have a class Product with some instance variable and the = method set to:

= anItem

anItem ifNil:[^false].

anItem class = self class ifFalse:[ ^false].

^ rfrConsegna = anItem rfrConsegna and:[ rfrSubTable = anItem rfrSubTable and:[ rfrDcm = anItem rfrDcm and:[ indexRiga = anItem indexRiga and:[ referenceTime = anItem referenceTime and:[ consumer = anItem consumer and:[ item = anItem item and:[ opzioniVoce = anItem opzioniVoce ]]]]]]]

Some of these variables are instances of classes with specific implementation and some variables themselves.

I set the relative hash method to:

hash

^ rfrConsegna hash bitXor:( rfrSubTable hash bitXor: ( rfrDcm hash bitXor: ( indexRiga hash bitXor: ( referenceTime hash bitXor: ( consumer hash bitXor: ( item hash bitXor: ( opzioniVoce hash

)))))))

Now when add some setup instances of class Product to a bag,

the relative inspector report

some aProduct entry but with some Occurences of this set to 0.

aProduct1 3 aProduct2 0 aProduct3 0

Some consideration about it ?

Some references about hash implementations ?

Thanks,

Dario