bjoernager/rust
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make unevaluated const substs optional

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This commit is contained in:
lcnr 2021-03-16 00:05:45 +01:00
parent f4b606fd17
commit bfaf13af4e
46 changed files with 234 additions and 188 deletions
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9
compiler/rustc_traits/src/chalk/lowering.rs
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@ -854,8 +854,8 @@ impl<'tcx> BoundVarsCollector<'tcx> {
}
impl<'tcx> TypeVisitor<'tcx> for BoundVarsCollector<'tcx> {
fn tcx_for_anon_const_substs(&self) -> TyCtxt<'tcx> {
self.tcx
fn tcx_for_anon_const_substs(&self) -> Option<TyCtxt<'tcx>> {
Some(self.tcx)
}
fn visit_binder<T: TypeFoldable<'tcx>>(
@ -1076,8 +1076,9 @@ impl PlaceholdersCollector {
}
impl<'tcx> TypeVisitor<'tcx> for PlaceholdersCollector {
fn tcx_for_anon_const_substs(&self) -> TyCtxt<'tcx> {
bug!("tcx_for_anon_const_substs called for PlaceholdersCollector");
fn tcx_for_anon_const_substs(&self) -> Option<TyCtxt<'tcx>> {
// Anon const substs do not contain placeholders by default.
None
}
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy> {