Thanks for the detailed reply. I think this was discussed before, but
just for clarification w/regards to BDAlias: if a user moves a
file/folder (which we have based a BDAlias upon and stored in
defaults), and in its original place creates a new file/folder with
the same name, which one will BDAlias resolve to, when restored from
defaults? The original moved item, or the newly created one? Does
BDAlias resolve a path first, and if invalid, then resolve its Alias
record?
The BDAlias class is not special, it doesn't do any special-case
handling of paths versus alias records or anything like that; it just
represents an alias record. And it just calls through to the Carbon
Alias Manager to resolve the alias record it represents when asked.
You can see that from its source code.
So the answer is that it will do whatever the Carbon Alias Manager
does, which has differed on different on different versions of the
operating system. Mac OS X 10.2 and later (and System 7 through Mac
OS 9.2.2) check the path embedded in the alias record first when
resolving aliases, while Mac OS X 10.0 and 10.1 checked the file ID
first. See this thread from 5+ years ago for details and history <http://lists.apple.com/archives/cocoa-dev/2002/Aug/msg01826.html
>.
-- Chris
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