Events fire with ref or out may not be passed

[muisje]

Hey,

I was implementing a function that executes an event in which i want to have a variable set for the caller to read. I need this because i need to know which state i'm in outside of the state machine.

So if i could fire an event with a return value or with a ref/ out parameter that would be nice :)

[muisje]

I solved this with having context object as argument and setting member values inside the function called and reading it after the the event is fired with a getter for the set property.

I do think using out would have been a nicer solution though.

[ursenzler]

Glad that you found a solution.

I consider exposing the state the state-machine is in an anti-pattern. The reasoning is, that while the state-machine is executing a non-empty queue of events - especially an active state-machine - it is hard to say in which state the machine really is.

I normally advise using some flags on the containing class that reflect the states that you want to expose to the environment of the state-machine.