36 lines
1.1 KiB
Rust
36 lines
1.1 KiB
Rust
// Copyright 2014 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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// All 3 expressions should work in that the argument gets
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// coerced to a trait object
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// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
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// pretty-expanded FIXME #23616
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fn main() {
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send::<Box<Foo>>(Box::new(Output(0)));
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Test::<Box<Foo>>::foo(Box::new(Output(0)));
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Test::<Box<Foo>>::new().send(Box::new(Output(0)));
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}
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fn send<T>(_: T) {}
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struct Test<T> { marker: std::marker::PhantomData<T> }
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impl<T> Test<T> {
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fn new() -> Test<T> { Test { marker: ::std::marker::PhantomData } }
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fn foo(_: T) {}
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fn send(&self, _: T) {}
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}
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trait Foo { fn dummy(&self) { }}
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struct Output(isize);
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impl Foo for Output {}
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