bjoernager/rust
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optimize TypeFoldable for 2 element tuples

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This commit is contained in:
lcnr 2022-02-07 16:08:04 +01:00
parent 7d5d6c055b
commit 758f4e7158
2 changed files with 39 additions and 13 deletions
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13
compiler/rustc_middle/src/ty/structural_impls.rs
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@ -889,19 +889,6 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::Binder<'tcx, ty::Existentia
}
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<Ty<'tcx>> {
fn try_super_fold_with<F: FallibleTypeFolder<'tcx>>(
self,
folder: &mut F,
) -> Result<Self, F::Error> {
ty::util::fold_list(self, folder, |tcx, v| tcx.intern_type_list(v))
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> {
self.iter().try_for_each(|t| t.visit_with(visitor))
}
}
impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ProjectionKind> {
fn try_super_fold_with<F: FallibleTypeFolder<'tcx>>(
self,