feature request: same method in sub- and/or in super-class; display all the methods of a class including inherited ones

[massimiliano-della-rovere]

Did you check existing requests?

• [X] I have searched the existing issues

Describe the feature

• the document's symbol windows, the symbol column next to the line numbers and the aerial's breadcrumbs bar for aerial should display if a method redefines a method in any superclass and if a method is redefined in any subclass.
• all the methods of a class should appear in the outline window, both inherited and "local" ones, albeit with a different color and symbol

Provide background

In the outline window and in the sign column, report is a method:

• redefines a method in a superclass
• is redefines by a method in a subclass

in the sign column,

• a downarrow↓ could highlight if the method is redefined in a subclass and
• an uparrow↑ could highlight if the method redefined a method in a superclass and
• a double pointed up+down arrow↕ could highlight if the method is redefined in a superclass and redefines a method in a superclass

in the outlinetree something like <C-j> or <C-k> could jump to the method in the sub- or super-class; this implies too that all of the methods of a class should be shown: both inherited ones and the those actually defined in the class, with different color and symbol to distinguish the inherited by the local ones.

What is the significance of this feature?

strongly desired

Additional details

I think this could help: https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#textDocument_prepareTypeHierarchy

[stevearc]

I'm intrigued by the possibility of leveraging the LSP type hierarchy methods for this. It's possible we could do something with that. This would be a challenge because so far the outline view is only showing symbols in the file, and it shows them in the order in which they appear. This constraint has allowed us to make a lot of assumptions for the navigation, code folding, and visualization. If we start to display symbols that are not present in the current file, we'll have to figure out how to keep the behavior consistent.

[massimiliano-della-rovere]

I wish I could help, but I'm really less than a newbie with LSP and Lua :(

[MaiLunJiye]

We can learn from outline.nvim Left is aerial.nvim and right is outline.nvim.