docs: record hyperfine rust memory benchmark

[vinitkumar]

Summary by Sourcery

Optimize Rust XML name handling and update documentation around invalid-name escaping and Rust memory benchmarks.

Enhancements:

• Use borrowed/owned Cow strings in Rust XML name helper to reduce unnecessary allocations and support borrowed attributes.
• Adjust Rust XML serialization call sites and tests to work with borrowed tag and attribute names while preserving single-escape behavior for invalid XML keys.

Documentation:

• Clarify LAT test documentation for Rust invalid XML-name attribute escaping semantics.
• Document that the June 2026 Rust memory benchmark is run under hyperfine in the architecture notes.

[sourcery-ai]

Reviewer's Guide

Refactors Rust XML name handling to use borrowed/owned Cow strings to reduce allocations and fix double-escaping behavior, updates callers and tests accordingly, and documents the Rust memory benchmark’s use of hyperfine and the invalid-name-escaping contract in LAT docs.

File-Level Changes

Change	Details	Files
Refactor XML name normalization helper to use Cow for reduced allocations while preserving raw invalid-key behavior for later escaping.	Import std::borrow::Cow and change make_valid_xml_name to return Cow-based key and attribute-name/value types instead of owned Strings. Ensure valid keys return borrowed Cows, numeric and space-rewritten keys allocate owned Cows, and invalid names fall back to borrowed "key" plus a borrowed raw-name attribute value. Adjust consumers of make_valid_xml_name to work with Cow, including using as_ref()/into_owned() where needed for attribute construction and testing.	rust/src/lib.rs
Align XML writing helpers with new string ownership model and reduce unnecessary String cloning.	Change write_open_tag/write_close_tag and write_list_contents call sites to pass &String instead of moving Strings where appropriate. Update dict/list serialization logic to derive name_attr as &str from Cow-based attribute pairs without extra allocations.	rust/src/lib.rs
Strengthen tests around invalid XML attribute name handling and escaping to guard against double-escaping with borrowed keys.	Update invalid-name tests to use the new Cow-based return types from make_valid_xml_name and compare via as_ref()/into_owned(). Annotate tests with a LAT link and add a new doc section specifying that invalid-name helpers must return raw keys for later escaping, preventing double-escape regressions.	rust/src/lib.rs lat.md/tests.md
Clarify Rust memory benchmark documentation to record use of hyperfine for process-level measurements.	Update architecture documentation to state that the June 2026 Rust memory benchmark is run under hyperfine via benchmark_memory_rust.py. Prepare or update the dedicated rust_memory_benchmark.rst doc to be consistent with the new benchmark description.	lat.md/architecture.md docs/rust_memory_benchmark.rst

---

Tips and commands

Interacting with Sourcery

• Trigger a new review: Comment @sourcery-ai review on the pull request.
• Continue discussions: Reply directly to Sourcery's review comments.
• Generate a GitHub issue from a review comment: Ask Sourcery to create an
  issue from a review comment by replying to it. You can also reply to a
  review comment with @sourcery-ai issue to create an issue from it.
• Generate a pull request title: Write @sourcery-ai anywhere in the pull
  request title to generate a title at any time. You can also comment
  @sourcery-ai title on the pull request to (re-)generate the title at any time.
• Generate a pull request summary: Write @sourcery-ai summary anywhere in
  the pull request body to generate a PR summary at any time exactly where you
  want it. You can also comment @sourcery-ai summary on the pull request to
  (re-)generate the summary at any time.
• Generate reviewer's guide: Comment @sourcery-ai guide on the pull
  request to (re-)generate the reviewer's guide at any time.
• Resolve all Sourcery comments: Comment @sourcery-ai resolve on the
  pull request to resolve all Sourcery comments. Useful if you've already
  addressed all the comments and don't want to see them anymore.
• Dismiss all Sourcery reviews: Comment @sourcery-ai dismiss on the pull
  request to dismiss all existing Sourcery reviews. Especially useful if you
  want to start fresh with a new review - don't forget to comment
  @sourcery-ai review to trigger a new review!

Customizing Your Experience

Access your dashboard to:

• Enable or disable review features such as the Sourcery-generated pull request
  summary, the reviewer's guide, and others.
• Change the review language.
• Add, remove or edit custom review instructions.
• Adjust other review settings.

Getting Help

• Contact our support team for questions or feedback.
• Visit our documentation for detailed guides and information.
• Keep in touch with the Sourcery team by following us on X/Twitter, LinkedIn or GitHub.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (43543e8) to head (e2be1b0).

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #318   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            6         6           
  Lines          616       616           
=========================================
  Hits           616       616           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

[sourcery-ai]

Hey - I've reviewed your changes and they look great!

---

Sourcery is free for open source - if you like our reviews please consider sharing them ✨

• X
• Mastodon
• LinkedIn
• Facebook

_{Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.}