Struct calc_graph::Const

pub struct Const<T>(_);

Calculates a node’s value by returning the same value every time.

Trait Implementations

impl<T: Clone> Calc for Const<T>

type Value = T

The type of values calculated by the node.

fn add_dep(&mut self, _seen: &mut BitSet, _dep: NonZeroUsize)

When this node is used as a precedent, add_dep is called by dependent nodes when they are created.

fn eval(&mut self, _dirty: &mut BitSet) -> (NonZeroUsize, T)

Returns the value held within the node and the version number of the inputs used to calcuate that value. The value is recalculated if needed.