From 576c215ab9184108422d30b311064b0efaf445d4 Mon Sep 17 00:00:00 2001
From: Yuki Okushi <huyuumi.dev@gmail.com>
Date: Tue, 1 Oct 2019 04:55:12 +0900
Subject: [PATCH] Add test for #50571

---
 src/test/ui/issues/issue-50571.rs     |  6 ++++++
 src/test/ui/issues/issue-50571.stderr | 13 +++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 src/test/ui/issues/issue-50571.rs
 create mode 100644 src/test/ui/issues/issue-50571.stderr

diff --git a/src/test/ui/issues/issue-50571.rs b/src/test/ui/issues/issue-50571.rs
new file mode 100644
index 000000000000..728c113bdc32
--- /dev/null
+++ b/src/test/ui/issues/issue-50571.rs
@@ -0,0 +1,6 @@
+trait Foo {
+    fn foo([a, b]: [i32; 2]) {}
+    //~^ ERROR: patterns aren't allowed in methods without bodies
+}
+
+fn main() {}
diff --git a/src/test/ui/issues/issue-50571.stderr b/src/test/ui/issues/issue-50571.stderr
new file mode 100644
index 000000000000..834635388a06
--- /dev/null
+++ b/src/test/ui/issues/issue-50571.stderr
@@ -0,0 +1,13 @@
+error[E0642]: patterns aren't allowed in methods without bodies
+  --> $DIR/issue-50571.rs:2:12
+   |
+LL |     fn foo([a, b]: [i32; 2]) {}
+   |            ^^^^^^
+help: give this argument a name or use an underscore to ignore it
+   |
+LL |     fn foo(_: [i32; 2]) {}
+   |            ^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0642`.