On Sat, 24 Nov 2018, commits at source.squeak.org wrote:

> Eliot Miranda uploaded a new version of Kernel to project The Trunk:
> http://source.squeak.org/trunk/Kernel-eem.1198.mcz
>
> ==================== Summary ====================
>
> Name: Kernel-eem.1198
> Author: eem
> Time: 24 November 2018, 1:44:47.526422 pm
> UUID: 100137c4-2514-4b7f-9064-3dcdfe7d8cc9
> Ancestors: Kernel-eem.1197
>
> Redefine LargePositiveInteger hash for compatibility between 32-bit and 64-bit systems.
>
> =============== Diff against Kernel-eem.1197 ===============
>
> Item was changed:
>  ----- Method: LargePositiveInteger>>hash (in category 'comparing') -----
>  hash
> + 	"Answer an integer value that is related to the value of the receiver.
> + 	 Take care that the hash value is the same in both 32-bit and 64-bit versions.
> + 	 Since the integers are by definition perfectly distributed a SmallInteger's hash is itself
> + 	 (it is impossible to derive a hash function that is better distributed than the SmallIntegers
> + 	 themselves).  Therefore, for integers that could possibly fit in the SmallInteger range, answer
> + 	 self.  For values well outside of the SmallInteger range on 64-bits answer a hash that avoids
> + 	 large integer arithmetic."
> + 	^self digitLength <= 8
> + 		ifTrue: [self]
> + 		ifFalse:
> + 			[ByteArray
> + 				hashBytes: self
> + 				startingWith: self species hash]!
> - 
> - 	^ByteArray
> - 		hashBytes: self
> - 		startingWith: self species hash!
>
> Item was changed:
>  ----- Method: SmallInteger>>hash (in category 'comparing') -----
>  hash
> + 	"Answer an integer value that is related to the value of the receiver.
> + 	 Since the integers are by definition perfectly distributed answer self
> + 	 (it is impossible to derive a hash function that is better distributed
> + 	 than the SmallIntegers themselves). c.f. LargePositiveInteger hash."
>
>  	^self!
>
> Item was changed:
>  (PackageInfo named: 'Kernel') postscript: '"below, add code to be run after the loading of this package"
> + "Since Kernel-eem.1198 redefines LargePositiveInteger hash,
> +  rehash all hashed collections that contain hashed large integers."
> + HashedCollection allSubclassesDo:
> + 	[:c| | f |
> + 	f := (c includesBehavior: Set)
> + 			ifTrue: [[:i| i]]
> + 			ifFalse: [[:i| i keys]].
> + 	c allInstancesDo:
> + 		[:h|
> + 		 ((f value: h) detect: [:e| e isInteger and: [e class ~~ SmallInteger]] ifNone: nil) ifNotNil:
> + 			[h halt rehash]]]'!

Is there a reason for that #halt to be there?

Levente

> - ((ByteArray subclasses includes: CompiledMethod)
> -  and: [CompiledMethod superclass ~= ByteArray]) ifTrue:
> - 	[ByteArray removeSubclass: CompiledMethod].
> - (Smalltalk classNamed: #FullBlockClosure) ifNotNil:
> - 	[:fbc|
> - 	(fbc identityHash ~= 38) ifTrue:
> - 		[fbc tryPrimitive: 161 withArgs: #(38 true)]]'!