Re: Code Completion
Re: Code Completion
- Subject: Re: Code Completion
- From: Serge Beauchamp <email@hidden>
- Date: Thu, 6 Mar 2003 14:49:21 -0600
It is not the same thing with java, because you cannot call a arbitrary
method on a Object reference, i.e you cannot do this in java:
Object object;
object.someMethod()
while it's totally legal in Objective-C.
Fortunatly, there's some tricks that a CodeCompletion parser could do,
for example, he can track where the id come from, and keep the original
type, although it doesn't work in some cases, for example:
[NSString alloc] init_
even though the alloc returns id, it's possible for a parser to
remember that it was called on a NSString class, and that the result is
of type NSString, same thing for retain, autorelease, init, etc...
Serge.
Giovedl, 6 Mar 2003, alle 13:39 US/Central, Christian Longshore
Claiborn ha scritto:
This is not a problem unique to Objective-C; Java has essentially the
same concept (everything derives from Object), and in such a case (for
example, when pulling an Object out of a collection without a direct
cast), code completion would be equally useless.
That said, there are plenty of times when I know exactly what I'm
tossing around to various functions, and when code completion (even
just scanning the member tables of the class and its parents) would be
quite useful. Maybe you write a lot of code like:
id x = [[NSMutableArray alloc] initWithCapacity:20];
[x addObject:blah];
but those of us who statically type our variables for clarity's sake
could use it.
Hell, I need to cast my variables half the time so that the compiler
can figure out which compare: to use, for example.
Christian
On Thursday, March 6, 2003, at 09:10 am, Chris Hanson wrote:
What should code completion do in this case? My insertion point is
at the underscore (_):
- (void)foo:(id)argument
{
id x = [foo _
It's a serious question.
Yes, code completion where all types are known *could* be nice, but
thanks to Objective-C's dynamic typing and the different development
techniques that this leads to, I see code completion getting in the
way and breaking my flow just as much as it helps. I fully see the
utility of code completion in statically-typed languages like C++ and
Java.
-- Chris
--
Chris Hanson, bDistributed.com, Inc. | Email: email@hidden
Custom Application Development | Phone: +1-847-372-3955
http://bdistributed.com/ | Fax: +1-847-589-3738
http://bdistributed.com/Articles/ | Personal Email: email@hidden
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