Files
tty7/crates
l0ng-ai 5003c4d733 feat(editor): language servers for the code editor
A new ui::lsp module runs language servers for local files the editor
opens: rust-analyzer, typescript-language-server, pyright (or pylsp),
gopls and clangd, from a registry table. Each server is keyed by
(server, project root), found from markers such as a Cargo workspace,
package.json, go.work/go.mod or pyproject.toml, and shared by every buffer
under that root. A server missing from PATH (which tty7 already fills from
the login shell) means no LSP for that language and a one-line hint in the
status bar.

The JSON-RPC client frames Content-Length messages over the server's stdio
on dedicated threads, holds everything back until initialize is answered,
cancels requests nobody waits for any more, and answers the server's own
requests (configuration, capability registration, applyEdit). Documents
use full-text sync, debounced, and flushed before every request. A server
whose last file closed shuts down after a grace period, every server exits
with the app, and one that crashes is restarted a few times before it is
left down.

Features: diagnostics as underlines with hover messages and an error and
warning count in the status bar; completion (snippets flattened to plain
text); hover; go to definition by secondary-click or F12, across files
through open_file_in_editor_at; code actions on the editor's own menu
(cmd-.), resolved and executed as the server needs; Format Document
(shift-alt-f); and Rename Symbol (F2) in the editor's bar, applied to open
buffers and to files on disk. The key bindings sit in the Input context so
F2 and F12 stay with terminal programs.

Positions are converted at the boundary: servers count UTF-16 units,
gpui-component counts chars, and the rope counts bytes.

The new editor_lsp setting (default on) turns it all off.
2026-09-28 17:17:27 +08:00
..