Trait sfsm_base::message::__protected::PollMessage[−][src]

pub trait PollMessage<TargetState, Message>: StateMachine where
    TargetState: State + ReturnMessage<Message>, {
    fn poll_message(&mut self) -> Result<Option<Message>, MessageError<()>>;
}
Expand description

The PollMessage trait implementation will be generated by the add_message! macro and is used to return messages from states.

Required methods

This will call the return_message function of FooState if it implemented the ReturnMessage trait for message ‘FooMessage’ and it has been declared to do so with the add_message! macro.

ⓘ
 use sfsm_base::PollMessage;
 let some_message = PollMessage::<FooState, FooMessage>::poll_message(&mut sfsm);

Implementors