I read this and I kept thinking at first “There’s no way I haven’t seen this in IntelliJ bef…”… oh. Of course that’s the one positive example. 😅

Two thumbs up Jetbrains. And yeah, I think all IDEs for all languages should allow this as a modified view type. Maybe even bidirectional for special cases.

Honestly I think function folders is the wrong solution here. I see two different modes of exploring the code here - a high level over view of what is available and a detailed look at the actual code. Code folding to switch between these two modes is not, I think, the best way to do this. Just the easiest thing to replicate in most editors.

A better solution would be a separate view for these - maybe a side bar or overlay that you can popup when you want to navigate the code.

Rust docs has this - a summary of the methods and other symbols on the side with full descriptions in the main view.

Helix has a nice symbol picker which with some tweaks could be a much nicer way to do this:

If it did not strip so much info from the symbols it would basically show the collapsed view along side the code with the ability to search and jump to the code you are interested in. I want to see more refinement on features like this and not just have code folding which I tend to find more annoying and limiting - having to constantly collapse and expand sections when what I really want is to jump around the code base.

No. The most basic task is just reading. I’d rather look at the full text by default because it’s easier to scroll and read than have to keep clicking and playing hide and seek. And it’s too easy to miss a very important part because everything looks the same and is equally hidden.

I’ll never get over how cool animated code folding looked when I first saw it. I love my terminal but man that’s sexy. Reminds me of some of the original demos of Dion. I feel there is definitely room to reinvent how we view and edit code.

Betteridge’s law of headlines…

IMO folding to hide is about equivalent to moving all contents to another file/private function:

def bad_function(args):
    return _hide_elsewhere(args)

i.e. does nothing. Real solution to pyramids of doom is to fix the code.

Vim sort of already has this feature via set foldmethod=syntax. This doesn’t work exactly like the author suggests but you can also use set foldmethod=expr and then set foldexpr to a more complicated expression to only get nested function/method bodies, via tree sitter for example if you’re on neovim.

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