One dumb way would be to retain a copy of
originalSelector & originalArguments in MethodNode ivar at creation,
then let #ensureCanCascade: restore the originals.

Nicolas

2011/3/2 Eliot Miranda <eliot.miranda at gmail.com>:
>
>
> On Wed, Mar 2, 2011 at 1:52 PM, Juan Vuletich <juan at jvuletich.org> wrote:
>>
>> Hi Eliot,
>>
>> Thanks for caring!
>>
>> The attached code fixed the case I reported first, but not this:
>>
>> true ifTrue: [ 'was true' print ]; ifFalse: [ 'not true' print ]
>
> Does the second one have to be unoptimized?  I guess that in this both are
> deoptimized right?
>
> true ifTrue: [ 'was true' print ]; ifFalse: [ 'not true' print ]; yourself
>>
>> Thanks,
>> Juan Vuletich
>>
>> Eliot Miranda wrote:
>>>
>>> Hi Juan,
>>>
>>>     I think the deoptimize-after-the-fact approach has no hope of working
>>> given the transformations for ifFalse:ifTrue: (swap arguments and transform
>>> to ifTrue:ifFalse:), ifNil:ifNotNil: et al.  Better is to avoid transforming
>>> at all if in a cascade.  So the attached is a start.  It needs cleaning up,
>>> the older hack (ensureCanCascade:) removing and either all uses of
>>> receiver:selector:arguments:precedence:from:sourceRange: should use
>>> receiver:selector:arguments:precedence:from:sourceRange:canTransform:, or
>>> implement receiver:selector:arguments:precedence:from:sourceRange in terms
>>> of receiver:selector:arguments:precedence:from:sourceRange:canTransform.
>>>  Anyway, test this and see how you get on.
>>>
>>> cheers,
>>> Eliot
>>>
>>> On Wed, Mar 2, 2011 at 11:46 AM, Juan Vuletich <juan at jvuletich.org
>>> <mailto:juan at jvuletich.org>> wrote:
>>>
>>>    Hi Folks,
>>>
>>>    commits at source.squeak.org <mailto:commits at source.squeak.org> wrote:
>>>
>>>        Nicolas Cellier uploaded a new version of Compiler to project
>>>        The Trunk:
>>>        http://source.squeak.org/trunk/Compiler-nice.189.mcz
>>>
>>>        ==================== Summary ====================
>>>
>>>        Name: Compiler-nice.189
>>>        Author: nice
>>>        Time: 13 February 2011, 7:44:38.363 pm
>>>        UUID: 3f6f02cd-1acf-48de-a388-b5ac55e27055
>>>        Ancestors: Compiler-nice.188
>>>
>>>        Enable cascading of special messages by deoptimizing, thanks
>>>        Eliot.
>>>        This is mostly useless, but it removes an arbitrary limitation
>>>        of the language.
>>>
>>>        =============== Diff against Compiler-nice.188 ===============
>>>
>>>    I integrated this nice code in Cuis, and tried:
>>>
>>>    true ifTrue: [ Transcript cr; show: 'was true' ]; yourself
>>>
>>>    I found that this works ok with the interpreter but does nothing
>>>    in Cog. A bug, right?
>>>
>>>    Cheers,
>>>    Juan Vuletich
>>>
>>>
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>>>
>>>
>>>
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>>
>>
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