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Adapt TypeFolder implementors to return a Result

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Co-authored-by: Alan Egerton <eggyal@gmail.com>
This commit is contained in:
LeSeulArtichaut
2021-05-19 15:01:30 +02:00
committed by Alan Egerton
parent 6e3fa20b00
commit 6dc3dae46f
24 changed files with 387 additions and 305 deletions
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12
compiler/rustc_middle/src/ty/structural_impls.rs
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@@ -1087,12 +1087,12 @@ impl<'tcx> TypeFoldable<'tcx> for InferConst<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for ty::Unevaluated<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
ty::Unevaluated {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> {
Ok(ty::Unevaluated {
def: self.def,
substs_: Some(self.substs(folder.tcx()).fold_with(folder)?),
promoted: self.promoted,
}
})
}
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> {
@@ -1112,12 +1112,12 @@ impl<'tcx> TypeFoldable<'tcx> for ty::Unevaluated<'tcx> {
}
impl<'tcx> TypeFoldable<'tcx> for ty::Unevaluated<'tcx, ()> {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
ty::Unevaluated {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> {
Ok(ty::Unevaluated {
def: self.def,
substs_: Some(self.substs(folder.tcx()).fold_with(folder)?),
promoted: self.promoted,
}
})
}
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> {