tracer

traces programm flow

the handle class tracer impements the possibility to monitor the programm flow inside a class.

Just inherit the class to your testclass like:

classdef testclass < tracer

The methods:

AddTrace adds the actual stack of the method call to the property trace.

IsInternalCall checks if the method call is from within the class or from the command line / other class

ListTrace show the trace in detail what methods have been called.

This can be very usefull if you just want the get/set method to do special stuff when it is called from the command line, or when it is called internally.

EXAMPLE:

I used it to control a heating element.

a=heater; a.temperature=40; communicates with RS232 and sets a new temperature

during heating up obj.temperature=actual_temperature; just sets a new temperature to the properties inside the class

classdef testclass < handle & tracer

properties

g=[1 2 3 4 5];

end

methods

function set.g(obj,x)

%obj.AddTrace;

disp('set g');

obj.g=x;

disp(sprintf('internal call: %i',obj.IsInternalCall));

end

function b=get.g(obj)

%obj.AddTrace;

disp('get g');

b=obj.g;

disp(sprintf('internal call: %i',obj.IsInternalCall));

end

function aa(obj)

obj.ListTrace;

end

function bb(obj)

%obj.AddTrace;

obj.g=3;

end

function c=cc(obj)

%obj.AddTrace;

c=obj.g;

end

function ListTrace(obj)

disp(obj.trace);

disp(sprintf('internal call: %i',obj.IsInternalCall));

end

end

end