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counterStateMachine for blog
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| fun CoroutineScope.counterStateMachine( | |
| initialState: CounterState, | |
| mutableStateFlow: MutableStateFlow<CounterState>, | |
| mutableActions: MutableSharedFlow<CounterMessage>, | |
| ) = | |
| actor<CounterMessage> { | |
| var state: CounterState = initialState | |
| channel.consumeEach { message -> | |
| when (message) { | |
| is IncrementCounter -> { | |
| state = state.copy(count = state.count + 1) | |
| mutableStateFlow.emit(state) | |
| mutableActions.emit(message) | |
| } | |
| is DecrementCounter -> { | |
| state = state.copy(count = state.count - 1) | |
| mutableStateFlow.emit(state) | |
| mutableActions.emit(message) | |
| } | |
| is GetCounterState -> message.deferred.complete(state) | |
| } | |
| } | |
| } |
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