private static void CheckIsComponentInterface <TInterface>() where TInterface : class
{
if (!ComponentRepository.IsComponentInterface(typeof(TInterface)))
{
throw new ArgumentException($"Interface given is not a component interface: {typeof(TInterface).Name}");
}
}
internal ComponentDescriptor(ComponentRepository componentRepository, Type type, object config, ComponentRepository privateRepository)
{
this.Repository = componentRepository;
this.Type = type;
this.Name = ComponentDescriptor.GetComponentName(type);
this.Config = config;
this.ConfigType = config?.GetType();
this.PrivateRepository = privateRepository;
this.MustCreateOnUiThread = ComponentDescriptor.GetComponentUiThreadAffinity(type, this.Repository);
}
internal IEnumerable <Type> GetProvidedInterfaces()
{
return((
from InterfaceType in this.Type.GetInterfaces()
where ComponentRepository.IsComponentInterface(InterfaceType)
select InterfaceType
).Union(
from Property in this.GetProvidedDelegatedProperties()
select Property.PropertyType
));
}
private IEnumerable <PropertyInfo> GetProvidedDelegatedProperties()
{
return(from Property in this.Type.GetRuntimeProperties()
where ComponentBindingPropertyAttribute.IsSetFor(Property)
.DbC_Assure(_ => _ == false || Property.CanWrite == false || Property.SetMethod?.IsPublic == false, $"{Property.DeclaringType.Name}.{Property.Name}: ComponentBindingProperty on set attributes no longer supported. Use Constructor Parameter with Func<TInterface> instead for deferred component resolution") &&
Property.CanRead && Property.GetMethod?.IsPublic == true && //must have a public get method
Property.PropertyType.IsInterface() &&
ComponentRepository.IsComponentInterface(Property.PropertyType)
select Property);
}
internal IEnumerable <Type> GetRequiredInterfaces()
{
return((
from Constructor in this.Type.GetConstructors()
from ConstructorParameter in Constructor.GetParameters()
let ParameterType = ConstructorParameter.ParameterType
let InterfaceType = ParameterType.IsArray
? ParameterType.GetElementType() //interface array
: ParameterType.IsConstructedGenericType && ParameterType.GetGenericTypeDefinition() == typeof(Func <>)
? ParameterType.GenericTypeArguments[0].IsArray
? ParameterType.GenericTypeArguments[0].GetElementType() //func interface array
: ParameterType.GenericTypeArguments[0] //func interface
: ParameterType // interface
where ComponentRepository.IsComponentInterface(InterfaceType)
select InterfaceType
).Distinct());
}
private static bool GetComponentUiThreadAffinity(Type type, ComponentRepository repository)
{
ThreadAffinity ThreadAffinity = ComponentAttribute.FromType(type).ThreadAffinity;
switch (ThreadAffinity)
{
case ThreadAffinity.Automatic:
return(repository.MustRunOnUiThread(type));
case ThreadAffinity.NeedsUiThread:
return(true);
case ThreadAffinity.SupportsBackground:
return(false);
default:
throw new ArgumentOutOfRangeException();
}
}
private bool CheckInterfaceParameter(ComponentContainer componentContainer, Type parameterType, bool mustResolve, string parameterTypeAndName, string specialTypeName, out string diagnosisInformation)
{
if (ComponentRepository.IsComponentInterface(parameterType))
{
if (mustResolve == false || componentContainer.CanResolveComponent(parameterType))
{
//Parameter is OK
}
else
{
diagnosisInformation = $"parameter '{parameterTypeAndName}' cannot be resolved. Make sure there is a registered component providing this interface.";
return(false);
}
}
else
{
diagnosisInformation = $"parameter '{parameterTypeAndName}' is not {specialTypeName} component interface. Make sure that the interfaces to use are marked with the [ComponentInterface] attribute.";
return(false);
}
diagnosisInformation = "OK";
return(true);
}
/// <summary/>
public ComponentContainer(ComponentRepository repository, params object[] externalInstances)
{
this.Repository = repository;
this.externalInstances = externalInstances;
}
internal SingletonComponentDescriptor(ComponentRepository componentRepository, Type type, object config, ComponentRepository privateRepository)
: base(componentRepository, type, config, privateRepository)
{
}