问题
What I mean by "map" is that I have a "main" function which calls many other programs inside, and I want to be able to see which file runs first, second, third, etc. Basically, I want to be able to see the list and order of dependencies in this large OOP design program (which the creator did not make a UML class diagram for) to help decipher the code. Surely such a functionality must exist in popular IDE's? I'm mostly dealing with C++ and MATLAB so I'm more concerned with these two specifically, but please list any IDE's you know of that have this functionality. I'd prefer something visual and not just running through a debugger and breakpoints a thousand times.
回答1:
In MATLAB, I don't believe there's a built-in way to do this visually, but you can get the information you need from the profiler using the FunctionTable returned by profile('info').
The parent/child relationships in the table essentially define a directed graph which you can interact with visually or otherwise in MATLAB if you convert it to a digraph object.
For example, to map the program execution of kmeans:
profile on
kmeans(rand(100,2),5);
p = profile('info');
t = struct2table(p.FunctionTable);
g = digraph(false(height(t)), t); % Create the graph with nodes and no edges
% Add the edges
for ii = 1:g.numnodes
for jj = 1:numel(g.Nodes.Children{ii})
g = g.addedge(ii, g.Nodes.Children{ii}(jj).Index);
end
end
plot(g,'NodeLabel',g.Nodes.FunctionName,'Layout','layered');
Produces:
The file each function comes from is also accessible via the FileName field of the FunctionTable so if the distinction between functions and the files they came from is important you could use this information to color or simplify the graph accordingly.
来源：https://stackoverflow.com/questions/52193006/is-there-a-way-to-map-the-program-execution-order-in-visual-studio-or-matlab