2014-09-26 19:56 UTC+02:00, Eliot Miranda <eliot.miranda at gmail.com>:
> On Fri, Sep 26, 2014 at 9:34 AM, Nicolas Cellier <
> nicolas.cellier.aka.nice at gmail.com> wrote:
>
>> So you rely on (nil value -> nil).
>> Will (is) the difference be still significant in Spur?
>>
>
> Spur won't change that.  Spur shouldn't change visible semantics at all
> beyond v asCharacter == v asCharacter is always true.
>

I mean will (does) Spur changes the timing ratio of [] value over nil value?

>
>> 2014-09-26 17:11 GMT+02:00 <commits at source.squeak.org>:
>>
>> Levente Uzonyi uploaded a new version of Morphic to project The Trunk:
>>> http://source.squeak.org/trunk/Morphic-ul.744.mcz
>>>
>>> ==================== Summary ====================
>>>
>>> Name: Morphic-ul.744
>>> Author: ul
>>> Time: 22 September 2014, 7:45:55.442 pm
>>> UUID: 78178a2f-f249-4767-8429-f8236e1459bc
>>> Ancestors: Morphic-cmm.743
>>>
>>> - sped up #valueOfProperty:ifAbsent: and friends
>>>
>>> =============== Diff against Morphic-cmm.743 ===============
>>>
>>> Item was changed:
>>>   ----- Method: Morph>>valueOfProperty:ifAbsent: (in category 'accessing
>>> - properties') -----
>>>   valueOfProperty: aSymbol ifAbsent: aBlock
>>>         "if the receiver possesses a property of the given name, answer
>>>         its value. If not then evaluate aBlock and answer the result of
>>>         this block evaluation"
>>> +
>>> +       extension ifNil: [ ^aBlock value ].
>>> +       ^extension      valueOfProperty: aSymbol ifAbsent: aBlock!
>>> -       ^ extension
>>> -               ifNotNil: [extension valueOfProperty: aSymbol ifAbsent:
>>> aBlock]
>>> -               ifNil: [aBlock value]!
>>>
>>> Item was changed:
>>>   ----- Method: MorphExtension>>layoutFrame (in category 'accessing -
>>> layout properties') -----
>>>   layoutFrame
>>> +       ^self valueOfProperty: #layoutFrame!
>>> -       ^self valueOfProperty: #layoutFrame ifAbsent:[nil]!
>>>
>>> Item was changed:
>>>   ----- Method: MorphExtension>>layoutPolicy (in category 'accessing -
>>> layout properties') -----
>>>   layoutPolicy
>>> +       ^self valueOfProperty: #layoutPolicy!
>>> -       ^self valueOfProperty: #layoutPolicy ifAbsent:[nil]!
>>>
>>> Item was changed:
>>>   ----- Method: MorphExtension>>layoutProperties (in category 'accessing
>>> - layout properties') -----
>>>   layoutProperties
>>> +       ^self valueOfProperty: #layoutProperties!
>>> -       ^self valueOfProperty: #layoutProperties ifAbsent:[nil]!
>>>
>>> Item was changed:
>>>   ----- Method: MorphExtension>>valueOfProperty: (in category 'accessing
>>> - other properties') -----
>>>   valueOfProperty: aSymbol
>>>   "answer the value of the receiver's property named aSymbol"
>>> +
>>> +       ^otherProperties ifNotNil: [ otherProperties at: aSymbol
>>> ifAbsent: nil ]!
>>> -       ^ self
>>> -               valueOfProperty: aSymbol
>>> -               ifAbsent: []!
>>>
>>> Item was changed:
>>>   ----- Method: MorphExtension>>valueOfProperty:ifAbsent: (in category
>>> 'accessing - other properties') -----
>>>   valueOfProperty: aSymbol ifAbsent: aBlock
>>>         "if the receiver possesses a property of the given name, answer
>>>         its value. If not then evaluate aBlock and answer the result of
>>>         this block evaluation"
>>>         otherProperties ifNil: [^ aBlock value].
>>> +       ^otherProperties at: aSymbol ifAbsent: aBlock!
>>> -       ^ otherProperties at: aSymbol ifAbsent: [^ aBlock value]!
>>>
>>>
>>>
>>
>>
>>
>>
>
>
> --
> best,
> Eliot
>