Class Does Not Have Property - MATLAB & Simulink (original) (raw)
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If a MATLAB® class has a method, mymethod, that returns a handle class with a property, myprop, you cannot generate code for the following type of assignment:
obj.mymethod().myprop=...
For example, consider the following classes:
classdef MyClass < handle properties myprop end methods function this = MyClass this.myprop = MyClass2; end function y = mymethod(this) y = this.myprop; end end end
classdef MyClass2 < handle properties aa end end
You cannot generate code for function foo.
function foo
h = MyClass;
h.mymethod().aa = 12;
In this function, h.mymethod() returns a handle object of type MyClass2. In MATLAB, the assignment h.mymethod().aa = 12; changes the property of that object. Code generation does not support this assignment.
Solution
Rewrite the code to return the object and then assign a value to a property of the object.
function foo
h = MyClass;
b=h.mymethod(); b.aa=12;