1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/pattern/usefulness/match-vec-unreachable.rs b/src/test/ui/pattern/usefulness/match-vec-unreachable.rs
new file mode 100644
index 000000000..3342389be
--- /dev/null
+++ b/src/test/ui/pattern/usefulness/match-vec-unreachable.rs
@@ -0,0 +1,29 @@
+#![deny(unreachable_patterns)]
+
+fn main() {
+    let x: Vec<(isize, isize)> = Vec::new();
+    let x: &[(isize, isize)] = &x;
+    match *x {
+        [a, (2, 3), _] => (),
+        [(1, 2), (2, 3), b] => (), //~ ERROR unreachable pattern
+        _ => ()
+    }
+
+    let x: Vec<String> = vec!["foo".to_string(),
+                              "bar".to_string(),
+                              "baz".to_string()];
+    let x: &[String] = &x;
+    match *x {
+        [ref a, _, _, ..] => { println!("{}", a); }
+        [_, _, _, _, _] => { } //~ ERROR unreachable pattern
+        _ => { }
+    }
+
+    let x: Vec<char> = vec!['a', 'b', 'c'];
+    let x: &[char] = &x;
+    match *x {
+        ['a', 'b', 'c', ref _tail @ ..] => {}
+        ['a', 'b', 'c'] => {} //~ ERROR unreachable pattern
+        _ => {}
+    }
+}