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Remove unfixable AsRef FIXMEs. #45378

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Remove unfixable AsRef FIXMEs. #45378

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16 changes: 0 additions & 16 deletions src/libcore/convert.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -382,14 +382,6 @@ impl<'a, T: ?Sized, U: ?Sized> AsRef<U> for &'a mut T where T: AsRef<U>
}
}

// FIXME (#23442): replace the above impls for &/&mut with the following more general one:
// // As lifts over Deref
// impl<D: ?Sized + Deref, U: ?Sized> AsRef<U> for D where D::Target: AsRef<U> {
// fn as_ref(&self) -> &U {
// self.deref().as_ref()
// }
// }

// AsMut lifts over &mut
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T: ?Sized, U: ?Sized> AsMut<U> for &'a mut T where T: AsMut<U>
Expand All @@ -399,14 +391,6 @@ impl<'a, T: ?Sized, U: ?Sized> AsMut<U> for &'a mut T where T: AsMut<U>
}
}

// FIXME (#23442): replace the above impl for &mut with the following more general one:
// // AsMut lifts over DerefMut
// impl<D: ?Sized + Deref, U: ?Sized> AsMut<U> for D where D::Target: AsMut<U> {
// fn as_mut(&mut self) -> &mut U {
// self.deref_mut().as_mut()
// }
// }

// From implies Into
#[stable(feature = "rust1", since = "1.0.0")]
impl<T, U> Into<U> for T where U: From<T>
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