Trait Stage

pub trait Stage: Clone {
    type State;
    type BaseFn;

    // Required methods
    fn inputs(&self) -> &HashMap<DataLabel, (TypeId, RefType)>;
    fn outputs(&self) -> &HashMap<DataLabel, TypeId>;
    fn evaluate(
        &self,
        state: &mut Option<Self::State>,
        inputs: &mut HashMap<DataLabel, (Arc<dyn Any + Send + Sync>, ReevaluationRule)>,
    ) -> Result<NodeOutput>;
    fn inject_input(
        &self,
        node: &mut Node<Self>,
        parent: &mut Box<dyn AnyNode>,
        output: DataLabel,
        input: DataLabel,
    ) -> Result<(), Error>;
    fn get_fn() -> Self::BaseFn;

    // Provided methods
    fn eval_strategy(&self) -> EvalStrategy { ... }
    fn reeval_rule(&self) -> ReevaluationRule { ... }
}

Defines all the information about how a stage is handled.

Required Associated Types

type State

Internal state only, no special rules apply to this

type BaseFn

The base function for this stage

Required Methods

fn inputs(&self) -> &HashMap<DataLabel, (TypeId, RefType)>

Used for typechecking inputs.

fn outputs(&self) -> &HashMap<DataLabel, TypeId>

Used for typechecking outputs

fn evaluate( &self, state: &mut Option<Self::State>, inputs: &mut HashMap<DataLabel, (Arc<dyn Any + Send + Sync>, ReevaluationRule)>, ) -> Result<NodeOutput>

Evaluate the stage with the given input and state

fn inject_input( &self, node: &mut Node<Self>, parent: &mut Box<dyn AnyNode>, output: DataLabel, input: DataLabel, ) -> Result<(), Error>

Stage-level connection processing logic. See Node::flow_data for more information.

fn get_fn() -> Self::BaseFn

Pointer to the function this wraps

Provided Methods

fn eval_strategy(&self) -> EvalStrategy

fn reeval_rule(&self) -> ReevaluationRule

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors