I'm defining various classes with an inheritance hierarchy and having problems setting up each class's reset method so that it is only called once during instantiation. Here is a toy-example which illustrates the problem.
MySuperClass.m
classdef MySuperClass < matlab.mixin.Copyable
function obj = MySuperClass(a0)
disp(" MySuperClass reset()")
MyClass.m
classdef MyClass < MySuperClass
function obj = MyClass(a0, b0)
obj = obj@MySuperClass(a0);
The reason I want to call the reset method during instantiation is that the reset operations are quite extensive in the actual implementation and therefore I don't want to duplicate the code in two places or have it run twice.
Test script:
disp("1. Instantiate MySuperClass")
x1 = MySuperClass(0.1); assert(x1.a == 0.1);
disp("2. Reset MySuperClass")
x1.reset(); assert(x1.a == 0.1);
disp("3. Instantiate MyClass")
x2 = MyClass(0.1, 0.2); assert(isequal([x2.a x2.b], [0.1 0.2]));
x2.reset(); assert(isequal([x2.a x2.b], [0.1 0.2]));
This executes without errors but it is evident that the reset methods are called twice when instantiating MyClass as shown in the output after '3. Instantiate MyClass' below:
Test script output:
1. Instantiate MySuperClass
MySuperClass reset()
2. Reset MySuperClass
MySuperClass reset()
3. Instantiate MyClass
MySuperClass reset()
MyClass reset()
MySuperClass reset()
MyClass reset()
4. Reset MyClass
MySuperClass reset()
MyClass reset()
I think this is happening because the two lines obj = obj@MySuperClass(a0) and obj.reset() in MyClass.m are both calling reset@MyClass rather than the local methods.
What is the correct way to define these two classes so the reset methods are only called once when an object is instantiated?
