Instead of returning a usize for the window id, I'm instead returning a
`WindowHandle<V: View>` where `V` is the type of the window's root view.
@as-cii helped me with a cool technique using generic associated types
where methods on `WindowHandle` can return either T or Option<T>
depending on the `BorrowWindowContext::Result` associated type.
Some example usage...
```rs
let window = cx.add_window(|cx| MyView::new(cx));
let my_view = window.root(cx); // If cx is TestAppContext, returns MyView. Otherwise returns Option<MyView>, because the window could be closed.
```
This isn't insanely beneficial on its own, but I think it will help
clean up our testing story. I'm planning on making `window` more useful
in tests for laying out elements, etc.
- [x] Rework tests that call `add_window` 😅 to expect only a window in
return.
- [x] Get tests passing
- [x] 🚬 test
Helps it get caught in a cargo clean. Joseph was having trouble building
a specific version of the app and deleting the Swift build dir for this
package resolved it. He had run cargo clean which would have handled
that if the Swift build dir was in `target` which this patch does
Release Notes:
- N/A
This adds rudimentary language support for the Nix expression language,
through tree-sitter-nix.
I spent a little bit of time trying to add support for one of the Nix
language servers too, but wasn't able to get any of them running
reliably without crashing, and so I've opted to stick to just the
tree-sitter grammar for now.

using zed more and more to develop zed itself I'm finding some small qol
features missing, this is one of them
I'm very used to open two or three splits, and sometimes I want to close
everything except for the active editor, but that wasn't supported, as
the `pane::CloseInactiveItems` action only closes inactive items on the
active pane
so I've implemented it really quick, although I'm not sure it's the
right way to do this
note: I really don't like the default keybinding I've set it to, I have
this action bound to `cmd-shift-w` on all editors, but in zed is taken,
so I chose something that's free but without thinking too much about it
Release Notes:
- Added action for closing inactive editors from all panes
This is broken because vim currently sets settings only on the active
editor. Fix this by correcting the range on the currently active editor.
It would be nice (at some point) to refactor how vim sets settings, but
that's for another day.
Release Notes:
- vim: Fix bug when jumping to definition in new file accidentally
entered visual mode.