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On 14.05.2008 16:21, itsme213 wrote:
<blockquote cite="mid:g0esh1$4i3$1@ger.gmane.org" type="cite">
<pre wrap="">"Andreas Raab" <a class="moz-txt-link-rfc2396E" href="mailto:andreas.raab@gmx.de"><andreas.raab@gmx.de></a> wrote in
</pre>
<blockquote type="cite">
<pre wrap="">Trygve Reenskaug wrote:
</pre>
<blockquote type="cite">
<pre wrap="">A role is played by an object at run time. This object can be an instance
of any class that implements its trait. So the trait is tied to a
fundamental abstraction that is on the same level as the class.
</pre>
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<pre wrap="">Interesting. But aren't you describing interfaces?
</pre>
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<pre wrap=""><!---->
The role itself is better compared to a variable than to an interface. The
corresponding trait can provide an interface definition, as well as an
implementation that refers to other related roles. I think Trygve figured
out a way to extend the compiler so that the method bodies (typically in
traits, I expect) can use distinguished "Role variables", which the compiler
translated into a dynamic lookup query.
My 2c guesses :-)
Sophie
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Exactly, that's what I am doing.<br>
--Trygve<br>
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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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