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// Copyright 2015 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. | ||
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pub struct Foo; | ||
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pub trait Bar{} | ||
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pub fn bar() -> Box<Bar> { | ||
unimplemented!() | ||
} | ||
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pub fn try_foo(x: Foo){} | ||
pub fn try_bar(x: Box<Bar>){} |
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// Copyright 2015 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. | ||
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pub struct Foo; | ||
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pub trait Bar{} | ||
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pub fn bar() -> Box<Bar> { | ||
unimplemented!() | ||
} |
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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. | ||
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// aux-build:crate_a1.rs | ||
// aux-build:crate_a2.rs | ||
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// This tests the extra note reported when a type error deals with | ||
// seemingly identical types. | ||
// The main use case of this error is when there are two crates | ||
// (generally different versions of the same crate) with the same name | ||
// causing a type mismatch. Here, we simulate that error using block-scoped | ||
// aliased `extern crate` declarations. | ||
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fn main() { | ||
let foo2 = {extern crate crate_a2 as a; a::Foo}; | ||
let bar2 = {extern crate crate_a2 as a; a::bar()}; | ||
{ | ||
extern crate crate_a1 as a; | ||
a::try_foo(foo2); //~ ERROR mismatched types | ||
//~^ HELP run | ||
//~^^ NOTE Perhaps two different versions of crate `main` | ||
a::try_bar(bar2); //~ ERROR mismatched types | ||
//~^ HELP run | ||
//~^^ NOTE Perhaps two different versions of crate `main` | ||
} | ||
} |