Add tests for pub(restricted)

Author: jseyfried

src/test/auxiliary/pub_restricted.rs

@@ -0,0 +1,23 @@
+// Copyright 2016 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(pub_restricted)]
+
+pub(crate) struct Crate;
+#[derive(Default)]
+pub struct Universe {
+    pub x: i32,
+    pub(crate) y: i32
+}
+
+impl Universe {
+    pub fn f(&self) {}
+    pub(crate) fn g(&self) {}
+}

src/test/compile-fail/privacy/restricted/feature-gate.rs

@@ -0,0 +1,25 @@
+// Copyright 2016 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.
+
+pub(crate) //~ ERROR experimental
+mod foo {}
+
+pub(self) //~ ERROR experimental
+mod bar {}
+
+struct S {
+    pub(self) x: i32, //~ ERROR experimental
+}
+impl S {
+    pub(self) fn f() {} //~ ERROR experimental
+}
+extern {
+    pub(self) fn f(); //~ ERROR experimental
+}

src/test/compile-fail/privacy/restricted/lookup-ignores-private.rs

@@ -0,0 +1,44 @@
+// Copyright 2016 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(rustc_attrs, pub_restricted)]
+#![allow(warnings)]
+
+mod foo {
+    pub use foo::bar::S;
+    mod bar {
+        #[derive(Default)]
+        pub struct S {
+            pub(foo) x: i32,
+        }
+        impl S {
+            pub(foo) fn f(&self) -> i32 { 0 }
+        }
+
+        pub struct S2 {
+            pub(crate) x: bool,
+        }
+        impl S2 {
+            pub(crate) fn f(&self) -> bool { false }
+        }
+
+        impl ::std::ops::Deref for S {
+            type Target = S2;
+            fn deref(&self) -> &S2 { unimplemented!() }
+        }
+    }
+}
+
+#[rustc_error]
+fn main() { //~ ERROR compilation successful
+    let s = foo::S::default();
+    let _: bool = s.x;
+    let _: bool = s.f();
+}

src/test/compile-fail/privacy/restricted/private-in-public.rs

@@ -0,0 +1,20 @@
+// Copyright 2016 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(pub_restricted)]
+
+mod foo {
+    struct Priv;
+    mod bar {
+        use foo::Priv;
+        pub(super) fn f(_: Priv) {}
+        pub(crate) fn f(_: Priv) {} //~ ERROR private
+    }
+}

src/test/compile-fail/privacy/restricted/struct-literal-field.rs

@@ -0,0 +1,31 @@
+// Copyright 2016 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(pub_restricted)]
+#![deny(private_in_public)]
+#![allow(warnings)]
+
+mod foo {
+    pub mod bar {
+        pub struct S {
+            pub(foo) x: i32,
+        }
+    }
+
+    fn f() {
+        use foo::bar::S;
+        S { x: 0 }; // ok
+    }
+}
+
+fn main() {
+    use foo::bar::S;
+    S { x: 0 }; //~ ERROR private
+}

src/test/compile-fail/privacy/restricted/test.rs

@@ -0,0 +1,62 @@
+// Copyright 2016 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.
+
+// aux-build:pub_restricted.rs
+
+#![feature(pub_restricted)]
+#![deny(private_in_public)]
+#![allow(warnings)]
+extern crate pub_restricted;
+
+mod foo {
+    pub mod bar {
+        pub(super) fn f() {}
+        #[derive(Default)]
+        pub struct S {
+            pub(super) x: i32,
+        }
+        impl S {
+            pub(super) fn f(&self) {}
+            pub(super) fn g() {}
+        }
+    }
+    fn f() {
+        use foo::bar::S;
+        pub(self) use foo::bar::f; // ok
+        pub(super) use foo::bar::f as g; //~ ERROR cannot be reexported
+        S::default().x; // ok
+        S::default().f(); // ok
+        S::g(); // ok
+    }
+}
+
+fn f() {
+    use foo::bar::S;
+    use foo::bar::f; //~ ERROR private
+    S::default().x; //~ ERROR private
+    S::default().f(); //~ ERROR private
+    S::g(); //~ ERROR private
+}
+
+fn main() {
+    use pub_restricted::Universe;
+    use pub_restricted::Crate; //~ ERROR private
+
+    let u = Universe::default();
+    let _ = u.x;
+    let _ = u.y; //~ ERROR private
+    u.f();
+    u.g(); //~ ERROR private
+}
+
+mod pathological {
+    pub(bad::path) mod m1 {} //~ ERROR failed to resolve module path
+    pub(foo) mod m2 {} //~ ERROR visibilities can only be restricted to ancestor modules
+}