Enum ordered_stream::PollResult

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pub enum PollResult<Ordering, Data> {
    Item {
        data: Data,
        ordering: Ordering,
    },
    NoneBefore,
    Terminated,
}
Expand description

The result of a OrderedStream::poll_next_before operation.

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Item

An item with a corresponding ordering token.

Fields

§data: Data
§ordering: Ordering
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NoneBefore

This stream will not return any items prior to the given point.

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Terminated

This stream is terminated and should not be polled again.

Implementations§

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impl<D, T> PollResult<T, D>

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pub fn into_data(self) -> Option<D>

Extract the data from the result.

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pub fn into_tuple(self) -> Option<(T, D)>

Extract the item from the result.

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pub fn map_data<R>(self, f: impl FnOnce(D) -> R) -> PollResult<T, R>

Apply a closure to the data.

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impl<T, D, E> PollResult<T, Result<D, E>>

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pub fn transpose_result(self) -> Result<PollResult<T, D>, E>

Extract the error of a Result item.

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pub fn transpose_result_item(self) -> Result<PollResult<T, D>, (T, E)>

Extract the error and ordering from a Result item.

Trait Implementations§

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impl<Ordering: Clone, Data: Clone> Clone for PollResult<Ordering, Data>

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fn clone(&self) -> PollResult<Ordering, Data>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<Ordering: Debug, Data: Debug> Debug for PollResult<Ordering, Data>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<Ordering: Hash, Data: Hash> Hash for PollResult<Ordering, Data>

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<Ordering: Ord, Data: Ord> Ord for PollResult<Ordering, Data>

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fn cmp(&self, other: &PollResult<Ordering, Data>) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl<Ordering: PartialEq, Data: PartialEq> PartialEq for PollResult<Ordering, Data>

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fn eq(&self, other: &PollResult<Ordering, Data>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<Ordering: PartialOrd, Data: PartialOrd> PartialOrd for PollResult<Ordering, Data>

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fn partial_cmp(&self, other: &PollResult<Ordering, Data>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<Ordering: Copy, Data: Copy> Copy for PollResult<Ordering, Data>

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impl<Ordering: Eq, Data: Eq> Eq for PollResult<Ordering, Data>

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impl<Ordering, Data> StructuralPartialEq for PollResult<Ordering, Data>

Auto Trait Implementations§

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impl<Ordering, Data> Freeze for PollResult<Ordering, Data>
where Data: Freeze, Ordering: Freeze,

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impl<Ordering, Data> RefUnwindSafe for PollResult<Ordering, Data>
where Data: RefUnwindSafe, Ordering: RefUnwindSafe,

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impl<Ordering, Data> Send for PollResult<Ordering, Data>
where Data: Send, Ordering: Send,

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impl<Ordering, Data> Sync for PollResult<Ordering, Data>
where Data: Sync, Ordering: Sync,

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impl<Ordering, Data> Unpin for PollResult<Ordering, Data>
where Data: Unpin, Ordering: Unpin,

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impl<Ordering, Data> UnwindSafe for PollResult<Ordering, Data>
where Data: UnwindSafe, Ordering: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.