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Nick Cameron 2014-10-30 15:41:07 +13:00
parent 961ee0a1e0
commit f9e52fb34c
3 changed files with 86 additions and 0 deletions

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// 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 calling methods on an impl for a bare trait. This test checks that the
// trait impl is only applied to a trait object, not concrete types which implement
// the trait.
trait T {}
impl<'a> T+'a {
fn foo(&self) {}
}
impl T for int {}
fn main() {
let x = &42i;
x.foo(); //~ERROR: type `&int` does not implement any method in scope named `foo`
}

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// 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 calling methods on an impl for a bare trait. This test checks trait impls
// must be in the same module as the trait.
mod Foo {
trait T {}
}
mod Bar {
impl<'a> ::Foo::T+'a { //~ERROR: inherent implementations may only be implemented in the same
fn foo(&self) {}
}
}
fn main() {}

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// 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 calling methods on an impl for a bare trait.
static mut COUNT: uint = 1;
trait T {}
impl<'a> T+'a {
fn foo(&self) {
unsafe { COUNT *= 2; }
}
fn bar() {
unsafe { COUNT *= 3; }
}
}
impl T for int {}
fn main() {
let x: &T = &42i;
x.foo();
T::foo(x);
T::bar();
unsafe { assert!(COUNT == 12); }
}