46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(unsized_tuple_coercion, unsized_locals)]
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struct A<X: ?Sized>(X);
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fn udrop<T: ?Sized>(_x: T) {}
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fn foo() -> Box<[u8]> {
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Box::new(*b"foo")
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}
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fn tfoo() -> Box<(i32, [u8])> {
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Box::new((42, *b"foo"))
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}
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fn afoo() -> Box<A<[u8]>> {
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Box::new(A(*b"foo"))
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}
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impl std::ops::Add<i32> for A<[u8]> {
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type Output = ();
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fn add(self, _rhs: i32) -> Self::Output {}
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}
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fn main() {
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udrop::<[u8]>(loop {
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break *foo();
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});
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udrop::<[u8]>(if true {
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*foo()
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} else {
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*foo()
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});
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udrop::<[u8]>({*foo()});
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#[allow(unused_parens)]
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udrop::<[u8]>((*foo()));
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udrop::<[u8]>((*tfoo()).1);
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*afoo() + 42;
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}
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