Why isn't permitted to derive a class from two different classes that are in turn derived from class 'matlab.mixin.Heterogeneous'?

Question

MathWorks Support Team 2021-8-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/890422-why-isn-t-permitted-to-derive-a-class-from-two-different-classes-that-are-in-turn-derived-from-class

回答： MathWorks Support Team 2021-8-2

It is sought to have a class diagram, where multiple inheritance is used for classes that are derived from the 'matlab.mixin.Heterogeneous' class. However, when trying to instantiate an object from these derived classes, the following error message is asserted,

Error using myDerivedClass
Class 'myDerivedClass' has two or more direct superclasses derived from
matlab.mixin.Heterogeneous, which is not permitted.

Why isn't permitted to derive a class from two different classes that are in turn derived from class 'matlab.mixin.Heterogeneous'?

请先登录，再回答此问题。

Answer 1

MathWorks Support Team 2021-8-2

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/890422-why-isn-t-permitted-to-derive-a-class-from-two-different-classes-that-are-in-turn-derived-from-class#answer_758767

This is the expected behavior of the software, see the following documentation page for more information,

https://de.mathworks.com/help/matlab/ref/matlab.mixin.heterogeneous-class.html

where in the section about "Restrictions on Heterogeneous Array Formation" it is mentioned that,

"You can form heterogeneous arrays with objects that derive from multiple superclasses, but only one branch in the hierarchy can define a heterogeneous root."