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Rollup merge of #65997 - spastorino:fix-init_locking-rustdoc, r=Mark-Simulacrum

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Fix outdated rustdoc of Once::init_locking function

r? @Mark-Simulacrum

related to https://github.com/rust-lang/rust/pull/65979
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Tyler Mandry 2019-11-01 11:20:25 -07:00 • committed by GitHub
commit 665d6479c4
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8
src/librustc_data_structures/sync.rs
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@ -492,10 +492,10 @@ impl<T> Once<T> {
assert!(self.try_set(value).is_none());
}
/// Tries to initialize the inner value by calling the closure while ensuring that no-one else
/// can access the value in the mean time by holding a lock for the duration of the closure.
/// If the value was already initialized the closure is not called and `false` is returned,
/// otherwise if the value from the closure initializes the inner value, `true` is returned
/// Initializes the inner value if it wasn't already done by calling the provided closure. It
/// ensures that no-one else can access the value in the mean time by holding a lock for the
/// duration of the closure.
/// A reference to the inner value is returned.
#[inline]
pub fn init_locking<F: FnOnce() -> T>(&self, f: F) -> &T {
{