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add a rustdoc comment to the reservation impl

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Niko Matsakis 2019-09-24 11:10:42 -04:00 committed by Ariel Ben-Yehuda
parent 167ab0439e
commit 99dc545552
1 changed files with 5 additions and 0 deletions
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5
src/libcore/convert.rs
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@ -554,6 +554,11 @@ impl<T> From<T> for T {
fn from(t: T) -> T { t }
}
/// **Stability note:** This impl does not yet exist, but we are
/// "reserving space" to add it in the future. See
/// [rust-lang/rust#64715][#64715] for details.
///
/// [#64715]: https://github.com/rust-lang/rust/issues/64715
#[stable(feature = "convert_infallible", since = "1.34.0")]
#[cfg(not(boostrap_stdarch_ignore_this))]
#[rustc_reservation_impl="permitting this impl would forbid us from adding \