rust-lang / rust-lang/rust

min_generic_const_args: Braced paths should forbid infer vars

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A-const-generics F-min_generic_const_args T-compiler
Dominant language
Rust
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Description

We should ensure that Foo<{ BAR }> is treated the same as Foo<BAR> when BAR has generic parameters (i.e. it should error in both cases).

Contributor guide

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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 reproducing the two examples, Foo<{ BAR }> and Foo< BAR >, with BAR having generic parameters, and compare their compiler behavior. Done means both braced and unbraced paths produce the same error in this case.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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