yes! may be create a tag for m1.1 On Nov 14, 2008, at 9:13 AM, Lukas Renggli wrote:
I created:
http://code.google.com/p/pharo/issues/detail?id=331 http://code.google.com/p/pharo/issues/detail?id=332
It would be useful to be able to tag issues for specific milestones.
Lukas
On Fri, Nov 14, 2008 at 9:05 AM, Lukas Renggli <renggli@gmail.com> wrote:
On Fri, Nov 14, 2008 at 8:57 AM, Stéphane Ducasse <stephane.ducasse@inria.fr> wrote:
I should say that I always like the fact that
'abc' = #abc --> false #abc = 'abc' --> false
Because a symbol and a string are different to my eyes. But when there was the discussion a while back I understood that a symbol is a kind of string.
Now how can we make progress on that point - evaluate the risks - write some tests for strings and symbols - give a try - but do that for pharo 1.1 :)
Ok, I will file an issue so that we don't forget.
Along the same lines is that strings implement the complete arithmetic protocol. In my opinion that should go away as well: it is a source of errors and portability issues. Furthermore it looks really unprofessional:
'1' + '2' --> '3' (in Pharo/Squeak)
I guess this is some eToy remnant.
Lukas
stef
On Nov 14, 2008, at 7:46 AM, Lukas Renggli wrote:
I want to open this for discussion:
In all Smalltalk dialects the following expressions evaluate to false:
'abc' = #abc --> false #abc = 'abc' --> false
This means a String and a Symbol is never the same thing, even if they contain the same characters. In Squeak/Pharo this is different though (at least this is symmetrical, pre 3.9 this wasn't even symmetrical):
'abc' = #abc --> true #abc = 'abc' --> true
Unfortunately this difference makes writing portable code that deals with symbols and strings a huge pain. And it is hard to test, debug and find those kind of problems.
I wonder if it would be possible to change that behavior in Squeak to match the other Smalltalk implementations? I guess this would break some code, but at least this problem would then be gone forever.
Lukas
-- Lukas Renggli http://www.lukas-renggli.ch
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-- Lukas Renggli http://www.lukas-renggli.ch
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