class inheritance in HC3

[Łukasz997 117]

I would like to ask how to implement class inheritance in HC3.

 

class "abc" (cde) 

 

I expected this construction creates "abc" (a table) inherit from "cde".

Seems not to work in fibemu, but I assume that in HC3 too.

It's like "abc" table was not created.

How it should be coded properly?

[jgab 2,647]

It works the same in fibemu as in the HC3.

 

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Note, on the HC3, objects are 'userdata' types and can not be iterated over like a Lua table. In fibemu the objects are Lua tables.

Edited March 13, 2025 by jgab

[Łukasz997 117]

Thank you. I'm not skilled OOP and thrown in the deep water.

So, could I assume that class 'A' is the same as A = {} ?

[jgab 2,647]

15 minutes ago, Łukasz997 said:

Thank you. I'm not skilled OOP and thrown in the deep water.

So, could I assume that class 'A' is the same as A = {} ?

Almost,

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Both A and an are of 'userdata' type, but they are different.

'userdata' just tells us that it is data represented outside lua (in C in this case)

A is a class (and is printed as "class A"), but 'a' is an object, instance of A, and

another 'userdata' type. Prints as the more ugly "custom [luabind::detail::null_type] object: (nil)"

 

We can peek into objects with 

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but we can't peek into classes

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gives an error if A doesn't contain a static x, which it doesn't do in this case as self.x is dynamically added at initialization.

fibemu will not give an error but return nil in this case.

 

and you can't iterate over the object
 

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Edited March 13, 2025 by jgab

[Łukasz997 117]

Thank you. I do not know where is the error regarding inheritance, my code is too complicated for me. Never sure what's behind.
I will manage inheritance by hand, as I see it's also possible. At last I can peek what I am doing.
This, what I'm doing is ideal for OOP, which I don't like... So, I'll keep doing.