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-rw-r--r--tests/ui/type-alias-impl-trait/issue-53092-2.rs14
1 files changed, 14 insertions, 0 deletions
diff --git a/tests/ui/type-alias-impl-trait/issue-53092-2.rs b/tests/ui/type-alias-impl-trait/issue-53092-2.rs
new file mode 100644
index 000000000..057930f0c
--- /dev/null
+++ b/tests/ui/type-alias-impl-trait/issue-53092-2.rs
@@ -0,0 +1,14 @@
+#![feature(type_alias_impl_trait)]
+#![allow(dead_code)]
+
+type Bug<T, U> = impl Fn(T) -> U + Copy; //~ ERROR cycle detected
+
+const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) };
+
+fn make_bug<T, U: From<T>>() -> Bug<T, U> {
+ |x| x.into() //~ ERROR the trait bound `U: From<T>` is not satisfied
+}
+
+fn main() {
+ CONST_BUG(0);
+}