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fix futures creating aliasing mutable and shared ref #56319

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Nov 29, 2018
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fix futures creating aliasing mutable and shared ref #56319

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fix futures aliasing mutable and shared ref
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@RalfJung
RalfJung committed Nov 28, 2018
commit 46a683111d4827800aae5eab4875c23089dce17e
4 changes: 2 additions & 2 deletions src/libstd/future.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -95,10 +95,10 @@ where
});
let _reset_waker = SetOnDrop(waker_ptr);

let mut waker_ptr = waker_ptr.expect(
let waker_ptr = waker_ptr.expect(
"TLS LocalWaker not set. This is a rustc bug. \
Please file an issue on https://github.com/rust-lang/rust.");
unsafe { f(waker_ptr.as_mut()) }
unsafe { f(waker_ptr.as_ref()) }
}

#[unstable(feature = "gen_future", issue = "50547")]
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