1 Apr
2009
1 Apr
'09
12:01 p.m.
Well, in Pharo you now have:
Symbol>>value: anObject
^anObject perform: self.
So, the implementation based on #value: can make Symbols and Blocks
polymorphic. In the case of asSortBlock, you could put it in a Trait
and implement it both for Block and for Symbol in one place :).
Cheers,
Doru
On 1 Apr 2009, at 11:55, Simon Denier wrote:
On 1 avr. 09, at 10:46, Tudor Girba wrote:
--
www.tudorgirba.com
"Problem solving should be concentrated on describing
the problem in a way that is relevant for the solution."
Hi,
asSortBlock is implemented in CodeFoo and CodeFoo is apparently
under MIT (see the bundle comments in VW).
anyway, another implementation would be:
^ [:a :b | (a value: self) <= (b value: self)]
I suppose you meant (might be different in VW though)
^ [:a :b | (a perform: self) <= (b perform: self) ]
Very elegant :)
It's funny how one can be easily get obfuscated when dealing with
meta stuff
Cheers,
Doru
On 30 Mar 2009, at 19:55, Simon Denier wrote:
--
Simon
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Moose-dev(a)iam.unibe.ch
https://www.iam.unibe.ch/mailman/listinfo/moose-dev I need the following method from VW to run some
tests in SqMoose.
Does anybody have an idea about its licence? Does not seem to be
part of our own extensions :(
It's not especially difficult to reimplement one, anyone can come
up with a Squeak/Pharo equivalent (although it works as is under
Pharo, perhaps there is a better way)
Symbol>>asSortBlock
"Answer a sort block, which evaluates this symbol for both
arguments
and compares the resulting values"
| stream |
stream := (String new: self size * 2 + 14) writeStream.
stream
nextPutAll: '[:a :b | a ';
nextPutAll: self;
nextPutAll: ' <=b ';
nextPutAll: self;
nextPut: $].
^Compiler evaluate: stream contents
--
Simon
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"Every now and then stop and ask yourself if the war you're
fighting is the right one."
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