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Fix wrongly refactored Lift impl

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This commit is contained in:
Oli Scherer 2022-09-21 08:29:19 +00:00
parent 1de00d1ac5
commit 3e6c9e5a19
1 changed files with 4 additions and 1 deletions
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compiler/rustc_middle/src/ty/structural_impls.rs
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@ -272,7 +272,10 @@ impl<'tcx, A: Lift<'tcx>, B: Lift<'tcx>, C: Lift<'tcx>> Lift<'tcx> for (A, B, C)
impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Option<T> { impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Option<T> {
type Lifted = Option<T::Lifted>; type Lifted = Option<T::Lifted>;
fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> {
tcx.lift(self?).map(Some) Some(match self {
Some(x) => Some(tcx.lift(x)?),
None => None,
})
} }
} }