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.
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 implicit coercions involving DSTs and raw pointers.
17 struct Foo<Sized? T> {
22 // Test that we cannot convert from *-ptr to &-ptr
24 let y: &S = x; //~ ERROR mismatched types
25 let y: &T = x; //~ ERROR mismatched types
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
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
37 // The below four sets of tests test that we cannot implicitly deref a *-ptr
40 let y: *const T = x; //~ ERROR mismatched types
42 let x: *mut S = &mut S;
43 let y: *mut T = x; //~ ERROR mismatched types
45 let x: *const Foo<S> = &Foo {f: S};
46 let y: *const Foo<T> = x; //~ ERROR mismatched types
48 let x: *mut Foo<S> = &mut Foo {f: S};
49 let y: *mut Foo<T> = x; //~ ERROR mismatched types