public virtual Maybe <TExodata> TryResolve <TContext, TSubject>(Maybe <TContext> context, Maybe <TSubject> subject, MemberInfo member) { return(ExodataResolver .ToMaybe() .Or(Ioc.TryResolve <IExodataResolver>) .SelectMaybe(x => x.TryResolve(ExodataRequest.Create <TExodata, TContext, TSubject>(this, context, subject, member))) .SelectMaybe(x => EnsureValid(x, "bound"))); }
public void SourceReturnsNoBinding_GivenNoSubjectOrMember() { var source = new AttributeExodataBindingSource(); var bindings = source.GetBindingsFor(ExodataRequest.Create <object, object, object>(new Symbol(), Maybe.NoValue, Maybe.NoValue, null)); Assert.IsNotNull(bindings); Assert.AreEqual(0, bindings.Count()); }
public void TryResolve_WithNoBindings_ReturnsNoValue() { var symbol = new Symbol(); var source = new ExodataBindingModule(); var resolver = new ExodataResolver(new[] { source }); Maybe <int> value = resolver.TryResolve(ExodataRequest.Create <int, object, object>(symbol, Maybe <object> .NoValue, Maybe <object> .NoValue, null)); Assert.AreEqual(Maybe <int> .NoValue, value); }
public void TryResolve_WithNonAmbiguousBindingSelection_YieldsValue() { var symbol = new Symbol(); var source = new ExodataBindingModule(); source.Bind(symbol, 42); var resolver = new ExodataResolver(new[] { source }); Maybe <int> result = resolver.TryResolve(ExodataRequest.Create <int, object, object>(symbol, Maybe <object> .NoValue, Maybe <object> .NoValue, null)); Assert.AreEqual(42, result.Value); }
public void TryResolve_WithAmbiguousBindingSelection_ThrowsAmbiguousExodataBindingsException() { var symbol = new Symbol(); var source = new ExodataBindingModule(); source.Bind(symbol, 42); source.Bind(symbol, 42); var resolver = new ExodataResolver(new[] { source }); Maybe <int> result = resolver.TryResolve(ExodataRequest.Create <int, object, object>(symbol, Maybe <object> .NoValue, Maybe <object> .NoValue, null)); var exception = Assert.Throws <AmbiguousExodataBindingsException>(() => { var x = result.HasValue; }); Assert.IsNotNull(exception); Assert.AreEqual(2, exception.Bindings.Count()); }
protected override Maybe <TExodata> TryResolve <TSubject>(Maybe <TContext> context, Maybe <TSubject> subject, MemberInfo member) { return(_Resolver.TryResolve(ExodataRequest.Create <TExodata, TContext, TSubject>(_Symbol, context, subject, member))); }