[rustc.git] / src / librustc_data_structures / captures.rs

/// "Signaling" trait used in impl trait to tag lifetimes that you may
/// need to capture but don't really need for other reasons.
/// Basically a workaround; see [this comment] for details.
///
/// [this comment]: https://github.com/rust-lang/rust/issues/34511#issuecomment-373423999
// FIXME(eddyb) false positive, the lifetime parameter is "phantom" but needed.
#[allow(unused_lifetimes)]
pub trait Captures<'a> {}

impl<'a, T: ?Sized> Captures<'a> for T {}
Commit	Line	Data
0531ce1d XL	1	/// "Signaling" trait used in impl trait to tag lifetimes that you may
	2	/// need to capture but don't really need for other reasons.
	3	/// Basically a workaround; see [this comment] for details.
	4	///
	5	/// [this comment]: https://github.com/rust-lang/rust/issues/34511#issuecomment-373423999
dc9dc135 XL	6	// FIXME(eddyb) false positive, the lifetime parameter is "phantom" but needed.
dc9dc135 XL	7	#[allow(unused_lifetimes)]
dfeec247	8	pub trait Captures<'a> {}
223e47cc	9
dfeec247	10	impl<'a, T: ?Sized> Captures<'a> for T {}