1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Test that all coercions can actually be done using casts (modulo the lints).
13 #![allow(trivial_casts, trivial_numeric_casts)]
25 let _ = 42_i32 as i32;
30 let _ = x as *const u32;
32 let x: &mut u32 = &mut 42;
33 let _ = x as *mut u32;
36 let x: &[u32; 3] = &[42, 43, 44];
38 let _ = x as *const [u32];
40 let x: &mut [u32; 3] = &mut [42, 43, 44];
41 let _ = x as &mut [u32];
42 let _ = x as *mut [u32];
44 let x: Box<[u32; 3]> = Box::new([42, 43, 44]);
45 let _ = x as Box<[u32]>;
50 let _ = x as *const Foo;
52 let x: &mut Bar = &mut Bar;
53 let _ = x as &mut Foo;
54 let _ = x as *mut Foo;
56 let x: Box<Bar> = Box::new(Bar);
57 let _ = x as Box<Foo>;
61 let _ = &baz as &Fn(i32);
63 let _ = &x as &Fn(i32);
67 pub fn test_subtyping<'a, 'b: 'a>(a: &'a Bar, b: &'b Bar) {