Struct Held 

pub struct Held(/* private fields */);

A node this run holds.

There is no third way to put it down. The type has one private field, so it is minted only by super::PlanTree::claim, and it is consumed only by Held::finish and Held::stop — one takes evidence, the other takes a cause. A run that simply stops working leaves the value with its owner, and the owner’s freeze path spends it on StopCause::FrozeWithoutEvidence, which is where the red in crate::blockage comes from.

Implementations

impl Held

pub fn id(&self) -> &NodeId

pub fn finish(self, evidence: Locator) -> PlanExit

Green: the work is done and here is where to look.

pub fn stop(self, why: StopCause) -> PlanExit

Red, or back in the pool: either way it says why.

Trait Implementations

impl Debug for Held

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

Formats the value using the given formatter.