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rollup merge of #20696: reem/unsized-typeid

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This removes the needlessly constricting bound on `intrinsics::type_Id` and `TypeId::of`. Also fixes an ICE where using bounds on type parameters in extern blocks fails to resolve the used traits.
This commit is contained in:
Alex Crichton
2015-01-07 17:17:31 -08:00
parent cedaf4696f 2606f99871
commit f257848992
4 changed files with 82 additions and 2 deletions
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31
src/libcoretest/intrinsics.rs Normal file
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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.
use core::intrinsics::TypeId;
#[test]
fn test_typeid_sized_types() {
struct X; struct Y(uint);
assert_eq!(TypeId::of::<X>(), TypeId::of::<X>());
assert_eq!(TypeId::of::<Y>(), TypeId::of::<Y>());
assert!(TypeId::of::<X>() != TypeId::of::<Y>());
}
#[test]
fn test_typeid_unsized_types() {
trait Z {}
struct X(str); struct Y(Z + 'static);
assert_eq!(TypeId::of::<X>(), TypeId::of::<X>());
assert_eq!(TypeId::of::<Y>(), TypeId::of::<Y>());
assert!(TypeId::of::<X>() != TypeId::of::<Y>());
}