Quick Python script over otool to help spotting potentially unused methods in Objective-C Mach-O executable files
Say you have this Objective-C code:
- (void)notUsed {
return;
}
- (void)actuallyUsed {
return;
}
// ...
[self actuallyUsed];
Thanks to /usr/bin/otool, you can get clues about potentially unused methods, like this:
$ python objc_cover.py /Users/nst/Desktop/iCalReport
# the following methods may be unreferenced
-[MyClass notUsed]
The idea was put first by "Luke the Hiesterman" on the Apple Objective-C list.
If I use an IPA I receive:
Usage: objc_cover.py MACH_O_FILE
If I decompress it and open the binary I receive:
can't find implemented methods
Should I use a special flag when compiling or debug?
good idea, but not very useful in practice. the output of this script is full of ObjC property getter/setter methods. I know this is limited by otool's lacking knowledge for the runtime info.
what do you think about the Clang static analytic tools?
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