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review comment: add claryfing comment

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This commit is contained in:
Esteban Küber 2023-08-14 19:27:12 +00:00
parent 5021dde1a0
commit 298ca6732b
1 changed files with 3 additions and 0 deletions
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3
compiler/rustc_hir_typeck/src/_match.rs
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@ -147,6 +147,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
} }
if !arm_ty.is_never() { if !arm_ty.is_never() {
// When a match arm has type `!`, then it doesn't influence the expected type for
// the following arm. If all of the prior arms are `!`, then the influence comes
// from elsewhere and we shouldn't point to any previous arm.
prior_arm = Some((arm_block_id, arm_ty, arm_span)); prior_arm = Some((arm_block_id, arm_ty, arm_span));
} }
} }