Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/test/ui/associated-types/associated-types-no-suitable-supertrait.rs b/src/test/ui/associated-types/associated-types-no-suitable-supertrait.rs
new file mode 100644
index 000000000..c373c5855
--- /dev/null
+++ b/src/test/ui/associated-types/associated-types-no-suitable-supertrait.rs
@@ -0,0 +1,26 @@
+// Check that we get an error when you use `<Self as Get>::Value` in
+// the trait definition but `Self` does not, in fact, implement `Get`.
+//
+// See also associated-types-no-suitable-supertrait-2.rs, which checks
+// that we see the same error if we get around to checking the default
+// method body.
+//
+// See also run-pass/associated-types-projection-to-unrelated-trait.rs,
+// which checks that the trait interface itself is not considered an
+// error as long as all impls satisfy the constraint.
+
+trait Get {
+    type Value;
+}
+
+trait Other {
+    fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) {}
+    //~^ ERROR the trait bound `Self: Get` is not satisfied
+}
+
+impl<T:Get> Other for T {
+    fn uhoh<U:Get>(&self, foo: U, bar: <(T, U) as Get>::Value) {}
+    //~^ ERROR the trait bound `(T, U): Get` is not satisfied
+}
+
+fn main() { }