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StateSnapshot

Struct StateSnapshot 

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pub struct StateSnapshot<State> {
    pub values: State,
    pub next_nodes: Vec<NodeId>,
    pub tasks: Vec<NodeId>,
    pub config: CheckpointConfig,
    pub metadata: CheckpointMetadata,
    pub parent_config: Option<CheckpointConfig>,
    pub pending_interrupts: Vec<Interrupt>,
}
Expand description

A point-in-time view of a thread’s checkpointed state, returned by CompiledGraph::get_state and CompiledGraph::get_state_history.

This is the state-inspection / time-travel surface: it bundles the committed channel values at a checkpoint with everything a caller needs to reason about or resume from that point — the next nodes that would run, the config that addresses this snapshot, the config of its parent (for walking the lineage), the checkpoint metadata (source/step/run id), and any pending interrupts.

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§values: State

Committed graph state (channel values) at the snapshot’s checkpoint.

§next_nodes: Vec<NodeId>

Nodes that would run if execution resumed from this snapshot.

§tasks: Vec<NodeId>

Tasks scheduled for the next superstep (mirrors next_nodes).

§config: CheckpointConfig

Config that addresses this snapshot’s checkpoint.

§metadata: CheckpointMetadata

Lightweight metadata for the snapshot’s checkpoint (source, step, run id).

§parent_config: Option<CheckpointConfig>

Config addressing the parent checkpoint, when one exists.

§pending_interrupts: Vec<Interrupt>

Interrupts that paused the run at this checkpoint, if any.

Trait Implementations§

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impl<State: Clone> Clone for StateSnapshot<State>

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fn clone(&self) -> StateSnapshot<State>

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
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impl<State: Debug> Debug for StateSnapshot<State>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<State> Freeze for StateSnapshot<State>
where State: Freeze,

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impl<State> RefUnwindSafe for StateSnapshot<State>
where State: RefUnwindSafe,

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impl<State> Send for StateSnapshot<State>
where State: Send,

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impl<State> Sync for StateSnapshot<State>
where State: Sync,

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impl<State> Unpin for StateSnapshot<State>
where State: Unpin,

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impl<State> UnsafeUnpin for StateSnapshot<State>
where State: UnsafeUnpin,

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impl<State> UnwindSafe for StateSnapshot<State>
where State: 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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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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> 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.
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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