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Add #[must_use] to core::task::Poll #58145

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Feb 5, 2019
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Add #[must_use] to core::task::Poll #58145

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1 change: 1 addition & 0 deletions src/libcore/task/poll.rs
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Expand Up @@ -7,6 +7,7 @@ use result::Result;

/// Indicates whether a value is available or if the current task has been
/// scheduled to receive a wakeup instead.
#[must_use = "this `Poll` may be a `Pending` variant, which should be handled"]
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum Poll<T> {
/// Represents that a value is immediately ready.
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