Re: How to locate which are not declared in header methods
Re: How to locate which are not declared in header methods
- Subject: Re: How to locate which are not declared in header methods
- From: Greg Guerin <email@hidden>
- Date: Thu, 13 May 2010 15:50:32 -0700
Steve Cronin wrote:
> Right now I don't have a handle on how much 'private' code there
is in this class…..
>
> Are there any techniques for accomplishing my goal.
How many methods are in the interface? In other words, what's the
complexity of doing it manually vs. the complexity of automating the
process?
How proficient are you with command-line tools?
You can get a list of every method in the implementation by applying
the 'nm' command to the .o file in the build folder. The '-P' option
might be better than the default output without -P.
You can fake a list of every method in an interface by copying the
interface methods into an otherwise empty implementation section of a
duplicate .m file, globally replace ';' with '{}', and compile
ignoring warnings. Then apply the 'nm' command to that .o.
With two sets of method names, it shouldn't be rocket science to
write a perl or awk script to produce the set of symbols not in both
sets. Or cat them together and pipe to 'sort': any repeated method
is in the interface, and any unrepeated one is not.
Of course, time spent automating this task is time not spent doing
the actual task. So it depends on how often the task is expected to
be repeated, the complexity of the interface vs. the implementation,
and one's actual skills in various command-line tools. It's like
that old regex joke: You see a problem and you think "I can solve
this with regular expressions". Now you have two problems.
-- GG
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