v2.0.0.4127

What's Changed

• name space and concept change by @I-RzR-I in #31

Major release — contains breaking changes. See migration-guide.md for full before/after porting steps.

Breaking changes

• [DEV] - (RzR) -> Change namespace from AggregatedGenericResultMessage to RzR.ResultMessage.
• [FIX] - (RzR) -> Implicit Exception -> Result / Result<T> operators now throw ArgumentNullException on null (was: silent empty failure).
• [FIX] - (RzR) -> Result<T>(Exception) constructor now adds one MessageType.Exception message (was: two: empty info + trace).
• [FIX] - (RzR) -> JoinErrors(IEnumerable<Result>) now derives IsSuccess from the joined collection (was: inherited from caller).
• [FIX] - (RzR) -> Success<T>(T, params RelatedObjectModel[]) no longer adds a ghost MessageType.None message when relatedObjects is empty/null.
• [DEV] - (RzR) -> ExceptionHelper.PreserveStackTrace signature changed: void -> ExceptionDispatchInfo
• [DEV] - (RzR) -> GetFirstMessage / GetFirstError now fall back to the first exception message when no plain message exists (was: empty string).

Obsoletions (compile warnings; will fail with TreatWarningsAsErrors)

• [DEV] - (RzR) -> Result<T>.Instance -> use Result<T>.Create().
• [DEV] - (RzR) -> ActionOnSuccess / ActionOnFailure / ActionOn (4 overloads) -> use Tap / Match.
• [DEV] - (RzR) -> All 7 FunctionOn* / ExecuteFunction overloads taking Func<Task<TResult>> -> use FunctionExtensionsAsync.*Async (avoids sync-over-async deadlock).

---

• [DEV] - (RzR) -> Map<TOut>(Func<T,TOut>), Bind<TOut>(Func<T,Result<TOut>>), Match<TOut>(Func<T,TOut>, Func<Result<T>,TOut>), Tap(Action<T>).
• [DEV] - (RzR) -> MapAsync, BindAsync, TapAsync, MatchAsync, overloads on both Result<T> and Task<Result<T>>, accepting sync and async delegates. All ConfigureAwait(false).
• [DEV] - (RzR) -> Tap(this Task<Result<T>>, Action<T>) for sync side-effect on awaited results.
• [DEV] - (RzR) -> New static class FunctionExtensionsAsync exposing FunctionOnSuccessAsync, FunctionOnFailureAsync, FunctionOnAsync (4 overloads), ExecuteFunctionAsync.
• [DEV] - (RzR) -> Validate(Func<T,bool>, error)- accumulates every violation in one chain pass; overloads for (predicate, key, error) and (predicate, MessageDataModel).
• [DEV] - (RzR) -> Ensure(Func<T,bool>, error) — short-circuits once IsSuccess == false.
• [DEV] - (RzR) -> ValidateAsync — async predicate on both Result<T> and Task<Result<T>>.
• [DEV] - (RzR) -> Match(Func<IResult,TOut>, Func<IResult,TOut>)and parameterless /Action`-based overloads.
• [DEV] - (RzR) -> MatchAsync<TOut>(Func<IResult,Task<TOut>>, Func<IResult,Task<TOut>>).
• [FIX] - (RzR) -> RelatedObjectModel.ToString() is now null-safe when InDataSourceNames is null

Full Changelog: v1.4.1.8497...v2.0.0.4127