On May 23, 2008, at 3:49 PM, Sherm Pendley wrote:
The implementation of foreach appears almost expressly designed to
better
support scripting languages. The ObjC foreach() syntax is just
chrome - the
"fast" comes from under the hood. It compiles down to a single
method that's
called to get a count of items and a C array of ids. For a scripting
bridge,
an opportunity to replace several trips across the bridge per
iteration with
a single round trip for the whole array is *huge*.
I actually consider the "for each" to be the "stealth viral" feature
(much like "//" style comments were with C++).
After having used them in an ObjC 2.0 project, I hate the thought of
turning back to the old "declare yet another enumerator, while (ugly
expression that's also a statement)" style in pre-ObjC 2.0.
While properties are nice, it's the "for each" thing that really is
thing I miss most when not working in ObjC 2.0... (if only the
equivalent NSEnumerator based loop were automatically generated in non
ObjC 2.0)
Glenn Andreas [EMAIL PROTECTED]
<http://www.gandreas.com/> wicked fun!
m.o.t.e.s. | minute object twisted environment simulation
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