1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/rfc-2457/no_mangle_nonascii_forbidden.rs b/src/test/ui/rfc-2457/no_mangle_nonascii_forbidden.rs
new file mode 100644
index 000000000..f4c126a6e
--- /dev/null
+++ b/src/test/ui/rfc-2457/no_mangle_nonascii_forbidden.rs
@@ -0,0 +1,20 @@
+#[no_mangle]
+pub fn řųśť() {}  //~ `#[no_mangle]` requires ASCII identifier
+
+pub struct Foo;
+
+impl Foo {
+    #[no_mangle]
+    pub fn řųśť() {}  //~ `#[no_mangle]` requires ASCII identifier
+}
+
+trait Bar {
+    fn řųśť();
+}
+
+impl Bar for Foo {
+    #[no_mangle]
+    fn řųśť() {}  //~ `#[no_mangle]` requires ASCII identifier
+}
+
+fn main() {}