Allow constraining opaque types during auto trait casting

2024-05-27 10:44:35 +00:00
parent cbadf786bc
commit 4a86ef6f4c
5 changed files with 30 additions and 32 deletions
--- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
@@ -1161,7 +1161,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                let InferOk { mut obligations, .. } = self
                    .infcx
                    .at(&obligation.cause, obligation.param_env)
-                    .sup(DefineOpaqueTypes::No, target, source_trait)
+                    .sup(DefineOpaqueTypes::Yes, target, source_trait)
                    .map_err(|_| Unimplemented)?;

                // Register one obligation for 'a: 'b.