On May 11, 2010, at 10:35 AM, Stéphane Ducasse wrote:
> But marcus the problem is right now keyAtValue: is bogus. Did you see it?
>
>
It does work when ypu know that there is only one value that is identical.
Than you can use it to map back and forth. (slowly one of them, of course).
If there are two values that are the same, the message does not make that much
sense.
I guess this method is used for just the cases when the client needs a table
for maping in
both directions.
The only client in the Core image is ServerDirectory:
nameForServer: aServer
^self servers keyAtValue: aServer
which is only called by methods that have no senders. Maybe we should clean
this a bit?
Marcus
>
> On May 11, 2010, at 9:41 AM, Marcus Denker wrote:
>
>> Hi,
>>
>> I think one question one should always ask: Do I have a real need for the
>> new method?
>>
>> Sometimes it makes sense to add new API methods even outside of direct need.
>> Consistency is the most important reason to add something.
>>
>> So is there a direct need for your method?
>>
>> Marcus
>>
>>
>>
>> On May 10, 2010, at 4:36 PM, Tristan Bourgois wrote:
>>
>>>
>>> keyAtValue: returns one key of the value specified but if you have more time
>>> the same value the method return one key.
>>> An example:
>>> t:=Dictionary new.
>>> t at: 'toto' put: 4.
>>> t at: 'foo' put: 4.
>>> t keyAtValue:4. -> 'foo'
>>>
>>> So we can't recuperate all of the keys. I propose to create the methods
>>> keysAtValue: who return an Array with all the keys for this value.
>>>
>>> I'm not in Pharo very long time so I can not say if it can be useful so I am
>>> asking to you the question.
>>>
>>> Tristan Bourgois.
>>> --
>>> View this message in context:
>>> http://forum.world.st/keyAtValue-keysAtValue-tp2165484p2165484.html
>>> Sent from the Pharo Smalltalk mailing list archive at Nabble.com.
>>>
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>>
>> --
>> Marcus Denker -- http://www.marcusdenker.de
>> INRIA Lille -- Nord Europe. Team RMoD.
>>
>>
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>
>
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--
Marcus Denker -- http://www.marcusdenker.de
INRIA Lille -- Nord Europe. Team RMoD.
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