public DefStateMachine(FileManager fileManager)
{
CurrentState = DefMachineState.START;
transitions = new Dictionary <DefStateTransition, DefMachineState>
{
{ new DefStateTransition(DefMachineState.START, TokenType.END), DefMachineState.START }
};
this.command = new DefCommand(fileManager);
}
public DefMachineState GetNext(Token token)
{
DefMachineState nextState = this.CurrentState;
DefStateTransition transition = new DefStateTransition(CurrentState, token.Type);
if (!transitions.TryGetValue(transition, out nextState))
{
throw new Exception("DEF: Invalid transition: " + CurrentState + " -> " + nextState + "\n" + token.Text + " " + token.Type);
}
if (token.Type != TokenType.END)
{
this.command.ConsumeToken(token);
}
Console.WriteLine("DEF: " + this.CurrentState + " -> " + nextState + ": " + token.Text);
return(nextState);
}
public DefStateTransition(DefMachineState currentState, TokenType token)
{
this.CurrentState = currentState;
this.Token = token;
}
public void MoveToNextState(Token token)
{
DefMachineState nextState = GetNext(token);
this.CurrentState = nextState;
}
