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Promises

hydro_lang::compile::embedded_runtime

Struct Promises 

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pub struct Promises<O, R> { /* private fields */ }
Expand description

What a host promises about something it supplies, each guarantee promised separately with a manual_proof! saying why it holds. An EmbeddedInputChannel or EmbeddedNetworkInputChannel is built from a stream and the Promises that meet its marker’s guarantees.

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impl Promises<NoOrder, AtLeastOnce>

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pub fn new() -> Self

Promises nothing: elements may arrive in any order, and any may be delivered more than once.

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impl<R> Promises<NoOrder, R>

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pub fn total_order(self, _proof: ManualProof) -> Promises<TotalOrder, R>

Promises the order: for a channel, each sender’s messages are delivered in the order it sent them; for an input, the stream’s order is the order to process; for a membership stream, each member’s events arrive in the order they happened.

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impl<O> Promises<O, AtLeastOnce>

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pub fn exactly_once(self, _proof: ManualProof) -> Promises<O, ExactlyOnce>

Promises that nothing is delivered twice: a channel never duplicates a message (for example by resending it after a reconnect), and every element of an input is a distinct event.

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impl Default for Promises<NoOrder, AtLeastOnce>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<O, R> Freeze for Promises<O, R>
where PhantomData<fn() -> (O, R)>: Freeze,

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impl<O, R> RefUnwindSafe for Promises<O, R>
where PhantomData<fn() -> (O, R)>: RefUnwindSafe,

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impl<O, R> Send for Promises<O, R>
where PhantomData<fn() -> (O, R)>: Send,

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impl<O, R> Sync for Promises<O, R>
where PhantomData<fn() -> (O, R)>: Sync,

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impl<O, R> Unpin for Promises<O, R>
where PhantomData<fn() -> (O, R)>: Unpin,

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impl<O, R> UnsafeUnpin for Promises<O, R>
where PhantomData<fn() -> (O, R)>: UnsafeUnpin,

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impl<O, R> UnwindSafe for Promises<O, R>
where PhantomData<fn() -> (O, R)>: UnwindSafe,

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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<Unshared, Shared> IntoShared<Shared> for Unshared
where Shared: FromUnshared<Unshared>,

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fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToSinkBuild for T

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fn iter_to_sink_build(self) -> SendIterBuild<Self>
where Self: Sized + Iterator,

Starts a SinkBuild adaptor chain to send all items from self as an Iterator.
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fn stream_to_sink_build(self) -> SendStreamBuild<Self>
where Self: Sized + Stream,

Starts a SinkBuild adaptor chain to send all items from self as a [Stream].
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more