bjoernager/rust
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Remove more unused Lift impls.

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This commit is contained in:
Nicholas Nethercote 2023-09-14 12:05:05 +10:00
parent af7d3e501b
commit abe2a68acd
12 changed files with 35 additions and 126 deletions
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9
compiler/rustc_infer/src/infer/free_regions.rs
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@ -4,7 +4,7 @@
//! and use that to decide when one free region outlives another, and so forth.
use rustc_data_structures::transitive_relation::TransitiveRelation;
use rustc_middle::ty::{Lift, Region, TyCtxt};
use rustc_middle::ty::{Region, TyCtxt};
/// Combines a `FreeRegionMap` and a `TyCtxt`.
///
@ -101,10 +101,3 @@ impl<'tcx> FreeRegionMap<'tcx> {
result
}
}
impl<'a, 'tcx> Lift<'tcx> for FreeRegionMap<'a> {
type Lifted = FreeRegionMap<'tcx>;
fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<FreeRegionMap<'tcx>> {
self.relation.maybe_map(|fr| tcx.lift(fr)).map(|relation| FreeRegionMap { relation })
}
}