rust-lang / rust-lang/rustfmt

Format MacroDef (macros 2.0)

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A-macros P-medium unstable-language-feature
Dominant language
Rust
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Description

Should share code with macro_rules I imagine. See FIXME in visitor.rs.

Contributor guide

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First steps

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  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 at the FIXME in visitor.rs and inspect how macro_rules definitions are currently formatted. Determine how MacroDef from macros 2.0 should share that formatting path, then verify that the resulting formatter behavior covers MacroDef definitions consistently with macro_rules.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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