b53764c73b
Removes all unstable and deprecated APIs prior to the 1.8 release. All APIs that are deprecated in the 1.8 release are sticking around for the rest of this cycle. Some notable changes are: * The `dynamic_lib` module was moved into `rustc_back` as the compiler still relies on a few bits and pieces. * The `DebugTuple` formatter now special-cases an empty struct name with only one field to append a trailing comma.
27 lines
833 B
Rust
27 lines
833 B
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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use std::borrow::Cow;
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pub trait IntoCow<'a, B: ?Sized> where B: ToOwned {
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fn into_cow(self) -> Cow<'a, B>;
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}
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impl<'a> IntoCow<'a, str> for String {
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fn into_cow(self) -> Cow<'a, str> {
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Cow::Owned(self)
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}
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}
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fn main() {
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<String as IntoCow>::into_cow("foo".to_string());
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//~^ ERROR too few type parameters provided: expected 1 parameter
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}
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