Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 45 insertions, 0 deletions

diff --git a/tests/ui/on-unimplemented/multiple-impls.rs b/tests/ui/on-unimplemented/multiple-impls.rs
new file mode 100644
index 000000000..a32fd4566
--- /dev/null
+++ b/tests/ui/on-unimplemented/multiple-impls.rs
@@ -0,0 +1,45 @@
+// Test if the on_unimplemented message override works
+
+#![feature(rustc_attrs)]
+
+
+struct Foo<T>(T);
+struct Bar<T>(T);
+
+#[rustc_on_unimplemented = "trait message"]
+trait Index<Idx: ?Sized> {
+    type Output: ?Sized;
+    fn index(&self, index: Idx) -> &Self::Output;
+}
+
+#[rustc_on_unimplemented = "on impl for Foo"]
+impl Index<Foo<usize>> for [i32] {
+    type Output = i32;
+    fn index(&self, _index: Foo<usize>) -> &i32 {
+        loop {}
+    }
+}
+
+#[rustc_on_unimplemented = "on impl for Bar"]
+impl Index<Bar<usize>> for [i32] {
+    type Output = i32;
+    fn index(&self, _index: Bar<usize>) -> &i32 {
+        loop {}
+    }
+}
+
+
+fn main() {
+    Index::index(&[] as &[i32], 2u32);
+    //~^ ERROR E0277
+    //~| ERROR E0277
+    //~| ERROR E0277
+    Index::index(&[] as &[i32], Foo(2u32));
+    //~^ ERROR E0277
+    //~| ERROR E0277
+    //~| ERROR E0277
+    Index::index(&[] as &[i32], Bar(2u32));
+    //~^ ERROR E0277
+    //~| ERROR E0277
+    //~| ERROR E0277
+}