Cleaner way to get a list-based AST

[ThatXliner]

Currently, in order to make a list for an AST component, you'll need to subclass ast_utils.Ast and ast_utils.AsList to make ast_utils stuff a list. Right now, I have to write

@dataclass
class Things(_Ast, ast_utils.AsList):
    content: List[Thing]

But I wish that instead of making an entirely new dataclass for a list (multiple) of things, I wanted a function or an extra argument I can pass to ast_utils.create_transformer. Actually, I just wanted a list. So what I have right now is actually more of a monstrosity.

class Things(list, _Ast, ast_utils.AsList):
    pass

I figured I can do some black magic and make a factory function on my own (which should modify the Transformer subclass) but this is just an idea to add it to ast_utils.

Is there a cleaner way?

[erezsh]

Well, you can do

class XlinerList((list, _Ast, ast_utils.AsList):
    pass

class Things(XlinerList):
    pass

Doesn't seem that bad.

[ThatXliner]

I thought of that already and I didn't want to write a completely new class (for selfish reasons).

Thinking about this overnight, I realized I could've just done

class XlinerList(list, _Ast, ast_utils.AsList):
    pass


Things = XlinerList

Which I tested it this morning and it works!

[erezsh]

Yep, that too. I thought you wanted to add methods to the object.

I would change the name, though :)

[ThatXliner]

I thought you wanted to add methods to the object.

What do you mean?