35 lines
937 B
Rust
35 lines
937 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// aux-build:trait_safety_lib.rs
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// Simple smoke test that unsafe traits can be compiled across crates.
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// pretty-expanded FIXME #23616
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extern crate trait_safety_lib as lib;
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use lib::Foo;
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struct Bar { x: isize }
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unsafe impl Foo for Bar {
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fn foo(&self) -> isize { self.x }
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}
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fn take_foo<F:Foo>(f: &F) -> isize { f.foo() }
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fn main() {
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let x: isize = 22;
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assert_eq!(22, take_foo(&x));
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let x: Bar = Bar { x: 23 };
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assert_eq!(23, take_foo(&x));
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}
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