About Static/class variables inherited by subclasses Topic is solved

[safetycar]

This line is from the docs: ( https://lexikos.github.io/v2/docs/Objects.htm#Custom_Classes_staticvar )

Static/class variables belong to the class itself, but their values can be inherited by subclasses.

I don't understand what that means.
I've tried things similar to this with no luck:

Code: Select all

class Example
{
	static Inherit := "Inherit?"
	class Subexample
	{
	}
}
MsgBox Example.Subexample.Inherit

[kczx3]

I believe that "subclass" is referring to derived classes, not "nested classes".

[safetycar]

Maybe, I think my English might be a bit lacking sometimes.

Do you mean as in using extends? But I'm not sure that would need clarification since extends are what they are (I think)

Edit: Maybe there are less obvious cases than that that I'm missing right now?

[swagfag]

u have to read the entire thing:

Static/class variables belong to the class itself, but their values can be inherited by subclasses. They are declared like instance variables, but using the static keyword:

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static ClassVar := Expression

These declarations are evaluated only once, when the class is initialized. A static method named __Init is automatically defined for this purpose.

Each declaration acts as a normal property assignment, with the class object as the target. Expression has the same interpretation as for instance variables, except that this refers to the class itself.

To assign to a class variable anywhere else, always specify the class object; for example, ClassName.ClassVar := Value. If a subclass does not own a property by that name, Subclass.ClassVar can also be used to retrieve the value; so if the value is a reference to an object, subclasses will share that object by default. However, Subclass.ClassVar := y would store the value in Subclass, not in ClassName.

Code: Select all

class Example
{
	static Inherit := "Inherit?"
}

class Subexample extends Example
{
}

MsgBox Subexample.Inherit ; "Inherit?"

Subexample.Inherit := 'something else'
MsgBox( Example.Inherit ; "Inherit?", NOT 'something else'
'`n' Subexample.Inherit ; 'something else'
)

[safetycar]

Thanks, I got stuck at the beginning and had troubles going on. As you say that last line makes gives it a bit more meaning.