The issue isn't that it crashes, the issue is that I cannot test that
any given version of "MyApp" does the right thing with the right
version of the binary file, unless I can get the finder to match up
the file that I mouse on with the right version of the app.
I in fact do have a mechanism to report when the wrong kind of file is
sent to an app, the issue is making sure the right one gets there so
that I can see that the app handles it correctly. I spoke too
briefly, the point is that the app cannot use the wrong versions of
the binary file, so I cannot run tests with them.
Thanks to the group for good suggestions.
-- Jay Reynolds Freeman
---------------------
[email protected]
http://web.mac.com/jay_reynolds_freeman (personal web site)
On Oct 25, 2009, at 7:20 PM, Greg Guerin wrote:
Jay Reynolds Freeman wrote:
Rather than trying to trick the system into preventing your
application's crashiness, I recommend making your application less
crash-prone. One simple way to do this is to write a version-number
at the head of your binary file. This should be done in a way that
all versions of the app can read. The remainder of the data can be
crash-inducing if the app doesn't recognize the version-number. Then
write code that reads the uniformly readable version-number, and
decides whether to continue or stop. By "stop" I don't mean crash, or
fail horribly, or quit unexpectedly. I mean refrain from reading the
rest of the file, possibly with an alert. It could even mean doing
nothing but issuing a beep. Anything but crashing.
As a wild guess, it would take less time to implement a version-
numbering scheme than to figure out any UTI trickery. It would also
have the long-term advantage of making your app less crash-prone.
-- GG
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