Enum Context

pub enum Context<S> {
    State(S),
    Deferred(Box<Deferred<S>>),
}

Deferred execution context holds its state or inner deferred execution (if there is deferred subroutine needed to evaluate).

Variants

State(S)

Context holds single state.

Deferred(Box<Deferred<S>>)

Context holds deferred subroutine needed to evaluate.

Implementations

impl<S> Context<S>

pub fn is_state(&self) -> bool

Tells if context holds a state.

pub fn is_deferred(&self) -> bool

Tells if context holds a deferred subroutine to evaluate.

pub fn get_state(&self) -> Option<&S>

Gets reference to current state if there is one hold by context or its deferred subroutine.

pub fn get_deferred(&self) -> Option<&Deferred<S>>

Gets deferred subroutine if context has one.

pub fn state(self) -> S

Consumes context and returns its state.

pub fn deferred(self) -> Deferred<S>

Consumes context and returns its deferred subroutine.

Panics

• when context does not hold deferred subroutine so you should make sure about that by calling self.is_deferred() before gettin context deferred subroutine.

pub fn unwrap(self) -> S

Alias for state() method.

Trait Implementations

impl<S> Into<Context<S>> for Deferred<S>

fn into(self) -> Context<S>

Converts this type into the (usually inferred) input type.