Struct StepList 

pub struct StepList<'a, StartInput> { /* private fields */ }

Collects a Flow’s starting Step and remaining Step definitions.

The lifetime ties registered definitions to Step values owned by the Flow. A list may contain at most one starting Step; Self::and adds non-starting Steps with arbitrary input types.

Implementations

impl<'a, StartInput: Value> StepList<'a, StartInput>

pub fn empty() -> Self

Creates a list without a starting Step.

pub fn start<StartStep>(step: &'a StartStep) -> Self

where StartStep: Step<Input = StartInput>,

Creates a list whose starting Step accepts the Flow’s start input.

pub fn and<OtherStep>(self, step: &'a OtherStep) -> Self

where OtherStep: Step,

Adds a non-starting Step and returns the updated list.

Trait Implementations

impl<StartInput: Value> Default for StepList<'_, StartInput>

fn default() -> Self

Returns the “default value” for a type.