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<font face="Georgia">Well, the comments about returning self rather
than nil in Louis's example seemed to assume the rest of his code
would return self, but that code was not in evidence, so who
knows.<br>
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<div class="moz-cite-prefix">On 10/23/13 4:46 PM, Chris Muller
wrote:<br>
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cite="mid:CANzdToH-7xgwFY-W7=d_p9++CXELmZFdYst2t9ddnWLQgaq--w@mail.gmail.com"
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<pre wrap="">On Wed, Oct 23, 2013 at 1:11 PM, Bob Arning <a class="moz-txt-link-rfc2396E" href="mailto:arning315@comcast.net"><arning315@comcast.net></a> wrote:
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<pre wrap="">Except that cascade is not affected by the return value...
self foo; bar.
cares not what is returned by foo.
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Your example assumes the send is to self. I was thinking of an
example where it was sent from another class:
louisObject methodWhichReturnsNilInsteadOfSelf
message1 ;
message 2
can no longer be done. Before, it could.
But, ok, you're right, it's not specifically cascading that is affected.. :)
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I think there was a discussion some time ago that self might not have been
the best default return value. YMMV.
Cheers,
Bob
On 10/23/13 2:05 PM, Chris Muller wrote:
Either. But in general use ^self rather than ^nil
so that it acts the same as the implicit ^self when you drop out the end of
a method.
+1. Senders might want to cascade.
Bob Arning wrote:
I prefer the first - it gets one case out of the way quickly.
Cheers,
Bob
On 10/23/13 10:12 AM, Louis LaBrunda wrote:
Hi,
I'm about to write a method where I need to test whether to do something or
just get out. What is the best practices way to do this? For example:
(a = b) ifTrue: [^nil].
*The code that does the work*
or:
(a = b) ifFalse: [
*The code that does the work*
].
I think the second is better style but I have used both. Generally using
the first when *The code that does the work* is long and the second when it
is short.
Is there any speed difference between them? I doubt it but I thought I
would ask anyway.
Lou
-----------------------------------------------------------
Louis LaBrunda
Keystone Software Corp.
SkypeMe callto://PhotonDemon
<a class="moz-txt-link-freetext" href="mailto:Lou@Keystone-Software.com">mailto:Lou@Keystone-Software.com</a> <a class="moz-txt-link-freetext" href="http://www.Keystone-Software.com">http://www.Keystone-Software.com</a>
________________________________
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