1 files changed, 52 insertions, 0 deletions
diff --git a/tests/ui/pattern/issue-22546.rs b/tests/ui/pattern/issue-22546.rs
new file mode 100644
index 00000000000..c26e457f9e4
--- /dev/null
+++ b/tests/ui/pattern/issue-22546.rs
@@ -0,0 +1,52 @@
+// run-pass
+#![allow(unused_variables)]
+// Parsing patterns with paths with type parameters (issue #22544)
+
+use std::default::Default;
+
+#[derive(Default)]
+pub struct Foo<T>(T, T);
+
+impl<T: ::std::fmt::Display> Foo<T> {
+    fn foo(&self) {
+        match *self {
+            Foo::<T>(ref x, ref y) => println!("Goodbye, World! {} {}", x, y)
+        }
+    }
+}
+
+trait Tr {
+    type U;
+}
+
+impl<T> Tr for Foo<T> {
+    type U = T;
+}
+
+struct Wrapper<T> {
+    value: T
+}
+
+fn main() {
+    let Foo::<i32>(a, b) = Default::default();
+
+    let f = Foo(2,3);
+    f.foo();
+
+    let w = Wrapper { value: Foo(10u8, 11u8) };
+    match w {
+        Wrapper::<Foo<u8>> { value: Foo(10, 11) } => {},
+        ::Wrapper::<<Foo<_> as Tr>::U> { value: Foo::<u8>(11, 16) } => { panic!() },
+        _ => { panic!() }
+    }
+
+    if let None::<u8> = Some(8) {
+        panic!();
+    }
+    if let None::<u8> { .. } = Some(8) {
+        panic!();
+    }
+    if let Option::None::<u8> { .. } = Some(8) {
+        panic!();
+    }
+}