Struct Outcome 

pub struct Outcome {
    pub last: Value,
    pub produced: Vec<(NodeId, Value)>,
    pub keys: Vec<(NodeId, Keys)>,
}

What came back from executing a plan elsewhere.

Fields

last: Value

What the last step returned, exactly as it would have returned it here. Not “the last one in the map”: a wave has no single output.

produced: Vec<(NodeId, Value)>

What each node produced, to be merged with what is here.

keys: Vec<(NodeId, Keys)>

And what each of those is called, so the chain of keys carries on below the slice that went away.

Implementations

impl Outcome

pub fn travelling(self) -> Outcome

The same outcome with whatever cannot leave this process left out of produced.

An intermediate value of a slice is read by the steps of that slice, which ran where it did: sending it back was never the point, and refusing the whole answer over one is refusing the case this exists for — two steps on one host, with something live in between them. What is not filtered is last, which is the value of the slice itself: that one has a reader here by definition.

Whoever does read one of the dropped values gets RunError::Lost, naming both ends.

Trait Implementations

impl Clone for Outcome

fn clone(&self) -> Outcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Outcome

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Outcome

fn deserialize<__D>( __deserializer: __D, ) -> Result<Outcome, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Outcome

fn eq(&self, other: &Outcome) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Outcome

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Outcome