internal static AwaitableStateConfiguration <TState, TTrigger> Permit <TState, TTrigger>(
AwaitableStateConfiguration <TState, TTrigger> config, object predicate, TTrigger trigger,
TState resultingState, object onTriggerAction, AwaitableTransitionFlag flags)
{
Contract.NotNull(trigger != null, nameof(trigger));
Contract.NotNull(resultingState != null, nameof(resultingState));
if (
AwaitableStateConfigurationHelper.FindTriggerRepresentation(trigger,
config.CurrentStateRepresentation) != null)
{
ExceptionHelper.ThrowExclusiveOperation();
}
var rep = AwaitableStateConfigurationHelper.CreateTriggerRepresentation(trigger,
config.CurrentStateRepresentation);
rep.NextStateRepresentationWrapper =
AwaitableStateConfigurationHelper.FindOrCreateStateRepresentation(resultingState,
config.Representations);
rep.OnTriggerAction = onTriggerAction;
rep.ConditionalTriggerPredicate = predicate;
rep.AwaitableTransitionFlags |= flags;
return(config);
}
FindAndEvaluateTriggerRepresentationAsync
<TState, TTrigger>(TTrigger trigger, RawAwaitableStateMachineBase <TState, TTrigger> machine,
bool raiseInvalidTriggers = true)
{
var triggerRep = AwaitableStateConfigurationHelper.FindTriggerRepresentation(trigger,
machine.CurrentStateRepresentation);
if (triggerRep == null)
{
if (raiseInvalidTriggers)
{
machine.RaiseInvalidTrigger(trigger);
}
return(null);
}
if (AwaitableStateConfigurationHelper.CheckFlag(triggerRep.AwaitableTransitionFlags,
AwaitableTransitionFlag.TriggerPredicateReturnsTask))
{
var predicate = (Func <Task <bool> >)triggerRep.ConditionalTriggerPredicate;
if (predicate != null)
{
if (!await predicate())
{
if (raiseInvalidTriggers)
{
machine.RaiseInvalidTrigger(trigger);
}
return(null);
}
}
}
else
{
var predicate = (Func <bool>)triggerRep.ConditionalTriggerPredicate;
if (predicate != null)
{
if (!predicate())
{
if (raiseInvalidTriggers)
{
machine.RaiseInvalidTrigger(trigger);
}
return(null);
}
}
}
// Handle ignored trigger
if (triggerRep.NextStateRepresentationWrapper == null)
{
return(null);
}
return(triggerRep);
}
internal static AwaitableStateConfiguration <TState, TTrigger> Ignore <TState, TTrigger>(
AwaitableStateConfiguration <TState, TTrigger> config, object predicate, TTrigger trigger,
AwaitableTransitionFlag flags)
{
Contract.NotNull(trigger != null, nameof(trigger));
if (
AwaitableStateConfigurationHelper.FindTriggerRepresentation(trigger, config.CurrentStateRepresentation) !=
null)
{
ExceptionHelper.ThrowExclusiveOperation();
}
var rep = AwaitableStateConfigurationHelper.CreateTriggerRepresentation(trigger,
config.CurrentStateRepresentation);
rep.NextStateRepresentationWrapper = null;
rep.ConditionalTriggerPredicate = predicate;
rep.AwaitableTransitionFlags |= flags;
return(config);
}
internal static AwaitableStateConfiguration <TState, TTrigger> PermitDynamic <TState, TTrigger>(
AwaitableStateConfiguration <TState, TTrigger> config, TTrigger trigger,
object targetStateFunc,
object onTriggerAction, AwaitableTransitionFlag flags)
{
Contract.NotNull(trigger != null, nameof(trigger));
Contract.NotNull(targetStateFunc != null, nameof(targetStateFunc));
if (
AwaitableStateConfigurationHelper.FindTriggerRepresentation(trigger, config.CurrentStateRepresentation) !=
null)
{
ExceptionHelper.ThrowExclusiveOperation();
}
var rep = AwaitableStateConfigurationHelper.CreateTriggerRepresentation(trigger,
config.CurrentStateRepresentation);
rep.NextStateRepresentationWrapper = targetStateFunc;
rep.OnTriggerAction = onTriggerAction;
rep.ConditionalTriggerPredicate = null;
rep.AwaitableTransitionFlags |= flags;
return(config);
}