ian.piumarta at inria.fr
Wed Aug 21 14:52:13 UTC 2002
On Wed, 21 Aug 2002, Ralph Johnson wrote:
> I see two arguments against this change. One is that it would
> break existing programs. I find this hard to believe. Nobody
> depends on the behavior of changing a collection while you are
> iterating over it.
But... whenever I want 9 copies of an object, I *always* put it in an
OrderedCollection and ask it to addAll: to itself. It's just *sooo*
convenient to be able to do it this way in Squeak.
> which aren't very realistic but are easy to run. It was about 20% slower,
> which was more than I expected. I expected real programs to be about 5%
> slower. I don't have time to test it on a real program, but I'll do it
_The_ acid test would be to make these changes in Squeak and then
benchmark the generation of the VM from class Interpreter and friends.
The CCodeGenerator spends a _lot_ of its time iterating over collections
in order to do "real" work.
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