User-agent: MacSOUP/2.8.2 (Mac OS X version 10.5.1 (x86))
I have a piece of code that loops over all attachments in a text view
and messes with their cells.
I'm getting this compiler warning that I can't explain:
warning: type 'id <NSTextAttachmentCell>' does not
conform to the 'NSCopying' protocol
Why should it? There's no 'copy' in my code. The warning goes away if
I change the marked line to this:
id <NSTextAttachmentCell> cell_id = [attachment attachmentCell];
NSTextAttachmentCell *cell = (NSTextAttachmentCell*) cell_id;
Can anybody explain this to me please?
Best,
Stefan
unsigned end = [textStorage length];
NSRange effectiveRange = { 0, 0 };
while (NSMaxRange(effectiveRange) < end) {
NSTextAttachment *attachment =
[textStorage attribute:NSAttachmentAttributeName
atIndex:NSMaxRange(effectiveRange)
effectiveRange:&effectiveRange];
if (attachment) {
NSTextAttachmentCell *cell = [attachment attachmentCell]; // <-- warning here
/* do stuff with cell */
}
}
--
Stefan Haller
Ableton
http://www.ableton.com/
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