1 files changed, 16 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-10877.rs b/src/test/ui/issues/issue-10877.rs
new file mode 100644
index 000000000..15a383175
--- /dev/null
+++ b/src/test/ui/issues/issue-10877.rs
@@ -0,0 +1,16 @@
+struct Foo {
+    x: isize,
+}
+extern "C" {
+    fn foo(1: ());
+    //~^ ERROR: patterns aren't allowed in foreign function declarations
+    fn bar((): isize);
+    //~^ ERROR: patterns aren't allowed in foreign function declarations
+    fn baz(Foo { x }: isize);
+    //~^ ERROR: patterns aren't allowed in foreign function declarations
+    fn qux((x, y): ());
+    //~^ ERROR: patterns aren't allowed in foreign function declarations
+    fn this_is_actually_ok(a: usize);
+    fn and_so_is_this(_: usize);
+}
+fn main() {}