private async Task <IResult <TOther> > FunctionCombinerAsync <TOther>([NotNull] Func <LazyEvaluatorAsync <T>, IResult <T>, Task <IResult <TOther> > > nextFunction, Func <IResult <TOther>, Task <IResult <TOther> > > onErrorFunc)
{
_lazyResultInternal = await EvaluateResultAsync();
if (_lazyResultInternal.OnError)
{
return(ResultFactory.FailLazyEvaluatedFunction <TOther>(ProgrId, _identifier, _lazyResultInternal.Error));
}
if (_raisedExit)
{
return(LazyResult <TOther> .Parse <TOther, T>(_lazyResultInternal));
}
var c = await nextFunction.Invoke(this, _lazyResultInternal);
if (_raisedExit || _lazyResultInternal.RaisedExit)
{
return(LazyResult <TOther> .Parse <TOther, T>(_lazyResultInternal));
}
if (!c.OnError || null == onErrorFunc)
{
return(c);
}
return(await onErrorFunc.Invoke(c));
}
public async Task <IResult <T> > RaiseExitAsync()
{
if (!_evaluated)
{
_lazyResultInternal = await EvaluateResultAsync();
}
_raisedExit = true;
return(_lazyResultInternal.RaiseExit(ProgrId));
}
public static LazyResult <TEnd> Parse <TEnd, TSource>([NotNull] LazyResult <TSource> resultExited)
{
return(new LazyResult <TEnd>(resultExited.Identifier, resultExited.ProgrId));
}
