protected override Expression <Func <IReactiveProxy, Task> > VisitObserverOnErrorCore(ObserverOnError operation)
{
throw new NotImplementedException();
}
protected override Expression <Func <IReactiveProxy, Task> > VisitObserverOnErrorCore <T>(ObserverOnError <T> operation)
{
var binder = new IdentityAwareBinder();
var boundParameter = binder.Bind(Expression.Parameter(typeof(IAsyncReactiveQbserver <T>), operation.TargetObjectUri.ToCanonicalString()));
var thisParameter = FreeVariableScanner.Scan(boundParameter).Single();
var onErrorMethod = boundParameter.Type.GetMethod("OnErrorAsync");
return(Expression.Lambda <Func <IReactiveProxy, Task> >(
Expression.Call(
boundParameter,
onErrorMethod,
Expression.Constant(operation.Error, typeof(Exception)),
Expression.Constant(CancellationToken.None)),
thisParameter));
}