1 files changed, 32 insertions, 0 deletions
diff --git a/tests/ui/type-alias-impl-trait/rpit_tait_equality_in_canonical_query.rs b/tests/ui/type-alias-impl-trait/rpit_tait_equality_in_canonical_query.rs
new file mode 100644
index 000000000..0f0002f77
--- /dev/null
+++ b/tests/ui/type-alias-impl-trait/rpit_tait_equality_in_canonical_query.rs
@@ -0,0 +1,32 @@
+//! This tries to prove the APIT's bounds in a canonical query,
+//! which doesn't know anything about the defining scope of either
+//! opaque type and thus makes a random choice as to which opaque type
+//! becomes the hidden type of the other. When we leave the canonical
+//! query, we attempt to actually check the defining anchor, but now we
+//! have a situation where the RPIT gets constrained outside its anchor.
+
+// revisions: current next
+//[next] compile-flags: -Ztrait-solver=next
+//[next] check-pass
+
+//[current] known-bug: #108498
+//[current] failure-status: 101
+//[current] normalize-stderr-test: "DefId\(.*?\]::" -> "DefId("
+//[current] normalize-stderr-test: "(?m)note: .*$" -> ""
+//[current] normalize-stderr-test: "(?m)^ *\d+: .*\n" -> ""
+//[current] normalize-stderr-test: "(?m)^ *at .*\n" -> ""
+
+#![feature(type_alias_impl_trait)]
+
+type Opaque = impl Sized;
+
+fn get_rpit() -> impl Clone {}
+
+fn query(_: impl FnOnce() -> Opaque) {}
+
+fn test() -> Opaque {
+    query(get_rpit);
+    get_rpit()
+}
+
+fn main() {}