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1 | // Copyright 2014 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. | |
4 | // | |
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. | |
10 | ||
11 | // Test implicit coercions involving DSTs and raw pointers. | |
12 | ||
13 | struct S; | |
9346a6ac | 14 | trait T {} |
1a4d82fc JJ |
15 | impl T for S {} |
16 | ||
17 | struct Foo<T: ?Sized> { | |
18 | f: T | |
19 | } | |
20 | ||
21 | pub fn main() { | |
22 | // Test that we cannot convert from *-ptr to &-ptr | |
23 | let x: *const S = &S; | |
24 | let y: &S = x; //~ ERROR mismatched types | |
25 | let y: &T = x; //~ ERROR mismatched types | |
26 | ||
27 | // Test that we cannot convert from *-ptr to &-ptr (mut version) | |
28 | let x: *mut S = &mut S; | |
29 | let y: &S = x; //~ ERROR mismatched types | |
30 | let y: &T = x; //~ ERROR mismatched types | |
31 | ||
32 | // Test that we cannot convert an immutable ptr to a mutable one using *-ptrs | |
33 | let x: &mut T = &S; //~ ERROR mismatched types | |
34 | let x: *mut T = &S; //~ ERROR mismatched types | |
35 | let x: *mut S = &S; //~ ERROR mismatched types | |
1a4d82fc | 36 | } |