rust-lang / rust-lang/rust

Tracking Issue for const TypeId Ord

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#146,472 0 comments 0 reactions 0 assignees View on GitHub

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C-tracking-issue S-tracking-unimplemented T-libs
Dominant language
Rust
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Forks
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PR merge metrics
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Description

This is a tracking issue for const TypeId Ord.

Unresolved Questions

As discussed in https://github.com/rust-lang/rust/pull/144847#issuecomment-3284722864 TypeId Ord requires pointer comparison (#53020) but it can also be implemented as a special case that doesn't compare pointers.

cc @oli-obk

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the discussion in PR #144847 and the pointer-comparison issue #53020. The unresolved question is whether const TypeId Ord should use pointer comparison or a special-case implementation; done means the design is resolved and the feature progresses through implementation and stabilization.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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