Re: Bug when encoding subclasses of NSData?
Re: Bug when encoding subclasses of NSData?
- Subject: Re: Bug when encoding subclasses of NSData?
- From: Jonathan Wight <email@hidden>
- Date: Fri, 19 Dec 2003 14:46:50 -0600
I haven't been able to solve this problem so I thought I'd bump the
original email and see if anyone on the list has a solution? (Come on
it _is_ the season of giving after all! ;-)
Jon.
On Dec 16, 2003, at 15:05, Jonathan Wight wrote:
>
I have a subclass of NSData that I am providing my own NSCoding methods
>
for. When an object of this class is archived I want to archive extra
>
information alongside the bytes of the object.
>
>
Unfortunately when I try to archive my object only the bytes are
>
archived and none of my extra information is getting archived. It turns
>
out that my subclass's -encodeWithCoder method isn't getting called at
>
all. I can only assume that NSArchiver recognises my object as an
>
NSData-like object and thinks it knows how to archive it without
>
bothering to go through encodeWithCoder.
>
>
Here's the backtrace of the point in the the code where I _think_ the
>
object is about to be archived...
>
>
#0 -[CMyData bytes] (self=0x5285a0, _cmd=0x9086b8c0) at
>
/Volumes/Home/schwa/Desktop/DataTest/CMyData.m:48
>
#1 0x90a2a484 in -[NSData hash] ()
>
#2 0x90197154 in __CFSetFindBuckets2 ()
>
#3 0x9019abd4 in CFSetAddValue ()
>
#4 0x901a30ac in _flattenPlist ()
>
#5 0x901a323c in _flattenPlist ()
>
#6 0x901a3198 in _flattenPlist ()
>
#7 0x901a05e4 in __CFBinaryPlistWriteToStream ()
>
#8 0x90aae658 in -[NSKeyedArchiver finishEncoding] ()
>
#9 0x90aac73c in +[NSKeyedArchiver archiveRootObject:toFile:] ()
>
#10 0x004ddc88 in main (argc=1, argv=0xbffffb80) at
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/Volumes/Home/schwa/Desktop/EncryptedObjectTest/main.m:36
>
>
Because NSData supports the NSCoder protocol I would expect the
>
archiving to go through -encodeWithCoder, but as I've found out it
>
doesn't seem to. This seems like a definite bug to me... Is this a
>
known bug and are there any work arounds?
[demime 0.98b removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]
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