Don't Suggest Labeling const and unsafe Blocks by veera-sivarajan · Pull Request #128701 · rust-lang/rust (original) (raw)

Fixes #128604

Previously, both anonymous constant blocks (E.g. The labeled block
inside ['_'; 'block: { break 'block 1 + 2; }]) and inline const
blocks (E.g. const { ... }) were considered to be the same
kind of blocks. This caused the compiler to incorrectly suggest
labeling both the blocks when only anonymous constant blocks can be
labeled.

This PR adds an other enum variant to Context so that both the
blocks can be handled appropriately.

Also, adds some doc comments and removes unnecessary &mut in a
couple of places.