On Thu, Jan 9, 2014 at 2:01 AM, Levente Uzonyi <leves at elte.hu> wrote:


> Also, I prefer the lazy #or: over #|, because it's faster.


Normally, yes, but in this case, I think #| is actually faster. Consider
the two versions (without the bug):

a)  (lastObject == object) | (object == 0)

b) (lastObject == object) or: [object == 0]

Lazy evaluation doesn't help here, because the first comparison will almost
never be true. On the other hand, #== is very fast, because it's a
bytecode, whereas #or: involves an extra message send and creating a stack
frame to execute the block.

Colin
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