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Rollup merge of #102088 - oli-obk:cleanups, r=bjorn3

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Fix wrongly refactored Lift impl

see https://github.com/rust-lang/rust/pull/101858#issuecomment-1252713639

r? ``@bjorn3``
This commit is contained in:
Matthias Krüger 2022-09-24 14:29:53 +02:00 committed by GitHub
commit bf167e0ae5
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1 changed files with 4 additions and 1 deletions
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5
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> {
type Lifted = Option<T::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,
})
}
}