Issue with delete(object)
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Aurélien
el 21 de Oct. de 2022
Hello,
I have a simple Matlab class. It has 2 properties, a string and an integer. The constructor is as follows:
function [obj, error] = constuctor_fct(arg1, arg2)
obj.property_str = arg1;
obj.property_int = arg2;
error = class.someOtherStaticMethod(obj.property_str, obj.property_int);
if (error ~= 0)
% There has been an issue, abort. Not relevant here
end
end
The issue I have is with the destructor. I want it to be this:
function destructor_fct(obj)
delete(obj)
end
However, when I call obj.destructor_fct() in my code, I get the following error:
Error using delete
Name must be a text scalar.
That seems very confusing to me, as I do not understand how a method used to delete objects should expect text scalars. Also, as far as I can tell and from what I tested, the static method called in the constructor does not interact with the object at all. I could just as well directly pass arg1 and arg2 to it, and the issue still happens.
Any idea what I did wrong ? Is delete not the correct method to delete an object from memory ? What should I use instead ?
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Respuesta aceptada
Walter Roberson
el 21 de Oct. de 2022
delete() of objects applies to handle objects, not to value objects. You cannot delete a value object from inside the class.
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