# Objective Remove avoidable clones of loop-invariant values that pay a copy on every loop iteration. These were found by running a prototype `deep_clone_in_loop` dylint (modeled on the accidentally quadratic project-search fix in #62658) across the workspace. None of these sites are quadratic in practice — the loops are bounded — but each one does strictly wasted work that a one-line change removes. ## Solution - `collab/src/api/extensions.rs`: use `next_marker.take()` instead of `next_marker.clone()` for the S3 pagination marker. The marker is either overwritten via `clone_from` at the end of the iteration or the loop breaks, so it is never read after the `take`. - `project/src/manifest_tree/path_trie.rs`: build the trie key with `Arc::from(path_so_far.as_rel_path())` instead of `path_so_far.clone().into()`. The `From<RelPathBuf> for Arc<RelPath>` impl copies the bytes into the `Arc` anyway, so the intermediate `RelPathBuf` clone was a second, redundant copy. - `context_server/src/client.rs`: in `notify`, split off the last handler and move the `serde_json::Value` payload into it, cloning only for the preceding handlers. Previously every handler received a clone and the final one was always wasted. - `editor/src/rewrap.rs`: use `std::mem::replace` to move the comment-delimiter and rewrap-prefix accumulators into the pushed range instead of cloning them and immediately reassigning. ## Testing - `cargo check -p collab -p project -p context_server -p editor` — clean. - `cargo test -p editor rewrap` — 7/7 pass, including the boundary-sensitive `test_rewrap*` editor tests. - `cargo test -p context_server` — 97/97 pass. - `cargo test -p project path_trie` — 2/2 pass. - Re-ran the `deep_clone_in_loop` lint on the four crates: the `extensions.rs`, `path_trie.rs`, and `rewrap.rs` hits are gone; `client.rs` still (correctly) reports the remaining required per-handler clone. - Not tested platform-specifically; the changes are platform-independent. ## Self-Review Checklist: - [x] I've reviewed my own diff for quality, security, and reliability - [x] Unsafe blocks (if any) have justifying comments - [x] The content adheres to Zed's UI standards ([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) and [icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md) guidelines) - [x] Tests cover the new/changed behavior - [x] Performance impact has been considered and is acceptable --- Release Notes: - N/A
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
Installation
On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).
Other platforms are not yet available:
- Web (tracking discussion)
Developing Zed
Contributing
See CONTRIBUTING.md for ways you can contribute to Zed.
Also... we're hiring! Check out our jobs page for open roles.
Licensing
Zed source code is licensed primarily under GPL-3.0-or-later, with Apache-2.0 components where marked.
License information for third party dependencies must be correctly provided for CI to pass.
We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:
- Is it showing a
no license specifiederror for a crate you've created? If so, addpublish = falseunder[package]in your crate's Cargo.toml. - Is the error
failed to satisfy license requirementsfor a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to theacceptedarray inscript/licenses/zed-licenses.toml. - Is
cargo-aboutunable to find the license for a dependency? If so, add a clarification field at the end ofscript/licenses/zed-licenses.toml, as specified in the cargo-about book.
Sponsorship
Zed is developed by Zed Industries, Inc., a for-profit company.
If you’d like to financially support the project, you can do so via GitHub Sponsors. Sponsorships go directly to Zed Industries and are used as general company revenue. There are no perks or entitlements associated with sponsorship.