add run-pass tests

src/test/run-pass/arbitrary_self_types_silly.rs

@@ -0,0 +1,29 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+#![feature(arbitrary_self_types)]
+
+struct Foo;
+struct Bar;
+
+impl std::ops::Deref for Bar {
+    type Target = Foo;
+
+    fn deref(&self) -> &Foo {
+        &Foo
+    }
+}
+
+impl Foo {
+    fn bar(self: Bar) -> i32 { 3 }
+}
+
+fn main() {
+    assert_eq!(3, Bar.bar());
+}

src/test/run-pass/arbitrary_self_types_struct.rs

@@ -0,0 +1,33 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+#![feature(arbitrary_self_types)]
+
+use std::rc::Rc;
+
+struct Foo {
+    x: i32,
+    y: i32,
+}
+
+impl Foo {
+    fn x(self: &Rc<Self>) -> i32 {
+        self.x
+    }
+
+    fn y(self: Rc<Self>) -> i32 {
+        self.y
+    }
+}
+
+fn main() {
+    let foo = Rc::new(Foo {x: 3, y: 4});
+    assert_eq!(3, foo.x());
+    assert_eq!(4, foo.y());
+}

src/test/run-pass/arbitrary_self_types_trait.rs

@@ -0,0 +1,28 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+#![feature(arbitrary_self_types)]
+
+use std::rc::Rc;
+
+trait Trait {
+    fn trait_method<'a>(self: &'a Box<Rc<Self>>) -> &'a [i32];
+}
+
+impl Trait for Vec<i32> {
+    fn trait_method<'a>(self: &'a Box<Rc<Self>>) -> &'a [i32] {
+        &***self
+    }
+}
+
+fn main() {
+    let v = vec![1,2,3];
+
+    assert_eq!(&[1,2,3], Box::new(Rc::new(v)).trait_method());
+}

src/test/run-pass/arbitrary_self_types_unsized_struct.rs

@@ -0,0 +1,25 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+#![feature(arbitrary_self_types)]
+
+use std::rc::Rc;
+
+struct Foo<T: ?Sized>(T);
+
+impl Foo<[u8]> {
+    fn len(self: Rc<Self>) -> usize {
+        self.0.len()
+    }
+}
+
+fn main() {
+    let rc = Rc::new(Foo([1u8,2,3])) as Rc<Foo<[u8]>>;
+    assert_eq!(3, rc.len());
+}