1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/extern/foreign-fn-pattern-error-10877.rs b/tests/ui/extern/foreign-fn-pattern-error-10877.rs
new file mode 100644
index 00000000000..9a047d4f34e
--- /dev/null
+++ b/tests/ui/extern/foreign-fn-pattern-error-10877.rs
@@ -0,0 +1,18 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/10877
+
+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() {}