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Edge

async_nodes::graph

Struct Edge

pub struct Edge<S> {
    pub source: NodeId,
    pub target: NodeId,
    pub condition: Condition<S>,
    pub max_iterations: Option<u64>,
    pub source_port: Option<PortIndex>,
    pub target_port: Option<PortIndex>,
}

Expand description

A declarative connection between two nodes — data, not a closure.

After source completes, the engine evaluates condition; when it matches, the edge emits an activation token toward target. Edges carrying source_port/target_port additionally route a pin value (dataflow profile).

Fields§

§source: NodeId

The node this edge starts from.

§target: NodeId

The node this edge points to.

§condition: Condition<S>

The declarative predicate deciding whether the edge fires.

§max_iterations: Option<u64>

Iteration budget. Present (and validated) on cycle-closing edges: exceeding it raises crate::error::BspError::LoopBoundExceeded.

§source_port: Option<PortIndex>

The output port routed by this edge (dataflow profile only).

§target_port: Option<PortIndex>

The input port routed by this edge (dataflow profile only).

Trait Implementations§

impl<S: Clone> Clone for Edge<S>

fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

impl<S> !RefUnwindSafe for Edge<S>

impl<S> !UnwindSafe for Edge<S>

impl<S> Freeze for Edge<S>
where Condition<S>: Freeze,

impl<S> Send for Edge<S>
where Condition<S>: Send,

impl<S> Sync for Edge<S>
where Condition<S>: Sync,

impl<S> Unpin for Edge<S>
where Condition<S>: Unpin,

impl<S> UnsafeUnpin for Edge<S>
where Condition<S>: UnsafeUnpin,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

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

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> CloneableStorage for T
where T: Any + Send + Sync + Clone,

fn clone_storage(&self) -> Box<dyn CloneableStorage>

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

fn into(self) -> U

Calls U::from(self).

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

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, !>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

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

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

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