log used function names in a MATLAB program

Question

Behzad Abdollahi 2016-9-22

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https://ww2.mathworks.cn/matlabcentral/answers/304048-log-used-function-names-in-a-matlab-program

评论： per isakson 2016-9-29

I want to log the name of all the functions that are called for each Object instance in MATLAB!

For example if we have this class:

classdef ClassName
   methods
      function obj = ClassName()
         ...
      end
      function ordinaryMethod()
         ...
      end
   end
end

And i run the following code:

    testObj = ClassName();
    testObj.ordinaryMethod();

I can somehow log that the ordinaryMethod was called for testObj which is a instance of ClassName. To make it clear, I dont want to just get a list of all the function names, I only need those that are used in my program.

Can anyone give me ideas, how i can achieve this? Ideal solution is that I don't have to change the function codes!

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Answer 1

Guillaume 2016-9-22

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编辑：Guillaume 2016-9-22

You could simply use the profiler which will return the list of all functions called by your code (when you run it), then filter that list by the class name:

profile('on');  %starts the profiler
%run your code
p = profile('info'); %stops the profiler
allfunctions = vertcat(p.FunctionName);
classfunctions = allfunctions(strncmp(allfunctions, 'ClassName>', numel(className)))  %omly keep ClassName methods

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Behzad Abdollahi 2016-9-29

this works just fine, but the problem is that using profiler slows down matlab significantly and therefore I can not use this solution. thanks anyway :)