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I tried to follow your instructions. But it doesn't really matter, does
it? <i><br>
<br>
initialize </i>is called from the instantiation of OBBrowser and its
subclasses. The method <i>initialize </i>is implemented in
OBCodeBrowser where it initializes its inst.vars. The subclass,
OBSystemBrowser adds another inst.var., but it doesn't have a
corresponding <i>initialize </i>method. I call it a bug, some might
call it a glitch, and there might be some that consider it good
practice to rely on initializing inst.vars as side effects of various
system operations. (Lazy initialization is another matter, of course)<br>
<br>
Cheers <span class="moz-smiley-s1"><span> :-) </span></span><br>
--Trygve<br>
<br>
On 21.02.2008 11:25, Damien Cassou wrote:
<blockquote
cite="mid:6ac749c10802210225p2e1a5b9o10639046d093a06f@mail.gmail.com"
type="cite">
<pre wrap="">Hi Trygve,
On Thu, Feb 21, 2008 at 11:08 AM, Trygve Reenskaug <a class="moz-txt-link-rfc2396E" href="mailto:trygver@ifi.uio.no"><trygver@ifi.uio.no></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap=""> It was the classical Smalltalk error: an uninitialized inst.var. (nil
instead of a Boolean).
The error occurred when I first opened OBSystemBrowser. hasChanges was nil
when it shouldn't be; I think this was the failing method.
</pre>
</blockquote>
<pre wrap=""><!---->
I've never seen this error. What is your image and how did you install
OmniBrowser on it?
</pre>
<blockquote type="cite">
<pre wrap=""> A comment: I like to add an empty initialize method to Object so that all
other initialize methods can start with super initialize.
</pre>
</blockquote>
<pre wrap=""><!---->
Always sending 'super initialize' is a good habit. But #initialize is
already implemented in ProtoObject so there is no need to implement it
in Object.
</pre>
</blockquote>
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<p class="MsoNormal" style=""><span class="SpellE"><span
style="font-size: 10pt; font-family: Arial;" lang="EN-GB">Trygve</span></span><span
style="font-size: 10pt; font-family: Arial;" lang="EN-GB">
Reenskaug<span style=""> </span>mailto: <span class="SpellE"><a class="moz-txt-link-abbreviated" href="mailto:trygver@ifi.uio.no">trygver@ifi.uio.no</a></span></span><span
style="font-size: 10pt; font-family: Arial;"><o:p></o:p></span></p>
<p class="MsoNormal" style=""><span class="SpellE"><span class="GramE"><span
style="font-size: 10pt; font-family: Arial;" lang="EN-GB">Morgedalsvn</span></span></span><span
class="GramE"><span style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">.</span></span><span
style="font-size: 10pt; font-family: Arial;" lang="EN-GB"> 5A <span
style=""> </span><a class="moz-txt-link-freetext" href="http://heim.ifi.uio.no/~trygver">http://heim.ifi.uio.no/~trygver</a><o:p></o:p></span></p>
<p class="MsoNormal" style=""><span
style="font-size: 10pt; font-family: Arial;">N-0378
Oslo<span style=""> </span>Tel: (+47) 22 49 57 27<o:p></o:p></span></p>
<p class="MsoNormal" style=""><span class="SpellE"><span
style="font-size: 10pt; font-family: Arial;">Norway</span></span><span
style="font-size: 10pt; font-family: Arial;"><o:p></o:p></span></p>
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