tests

src/test/compile-fail/method-self-arg-1.rs

@@ -0,0 +1,24 @@
+// Copyright 2014 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.
+
+// Test method calls with self as an argument cannot subvert type checking.
+
+struct Foo;
+
+impl Foo {
+    fn bar(&self) {}
+}
+
+fn main() {
+    let x = Foo;
+    Foo::bar(x); //~ERROR mismatched types: expected `&Foo`, found `Foo`
+    Foo::bar(&&x); //~ERROR mismatched types: expected `&Foo`, found `&&Foo`
+    Foo::bar(&42i); //~ERROR mismatched types: expected `&Foo`, found `&int`
+}

src/test/compile-fail/method-self-arg-2.rs

@@ -0,0 +1,27 @@
+// Copyright 2014 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.
+
+// Test method calls with self as an argument cannot subvert borrow checking.
+
+struct Foo;
+
+impl Foo {
+    fn bar(&self) {}
+    fn baz(&mut self) {}
+}
+
+fn main() {
+    let mut x = Foo;
+    let y = &mut x;
+    Foo::bar(&x); //~ERROR cannot borrow `x`
+
+    let x = Foo;
+    Foo::baz(&x); //~ERROR cannot borrow immutable dereference of `&`-pointer as mutable
+}

src/test/run-pass/method-self-arg.rs

@@ -0,0 +1,54 @@
+// Copyright 2014 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.
+
+// Test method calls with self as an argument
+
+static mut COUNT: uint = 1;
+
+struct Foo;
+
+impl Foo {
+    fn foo(self, x: &Foo) {
+        unsafe { COUNT *= 2; }
+        // Test internal call.
+        Foo::bar(&self);
+        Foo::bar(x);
+
+        Foo::baz(self);
+        Foo::baz(*x);
+
+        Foo::qux(box self);
+        Foo::qux(box *x);
+    }
+
+    fn bar(&self) {
+        unsafe { COUNT *= 3; }
+    }
+
+    fn baz(self) {
+        unsafe { COUNT *= 5; }
+    }
+
+    fn qux(self: Box<Foo>) {
+        unsafe { COUNT *= 7; }
+    }
+}
+
+fn main() {
+    let x = Foo;
+    // Test external call.
+    Foo::bar(&x);
+    Foo::baz(x);
+    Foo::qux(box x);
+
+    x.foo(&x);
+
+    unsafe { assert!(COUNT == 2u*3*3*3*5*5*5*7*7*7); }
+}