public static IDisposable To <T>([NotNull] this IBinding <T> binding, [CanBeNull] IAutowiringStrategy autoWiringStrategy = null)
{
if (binding == null)
{
throw new ArgumentNullException(nameof(binding));
}
return(new DependencyToken(binding.Container, CreateDependency(binding, new FullAutoWiringDependency(TypeDescriptor <T> .Type, autoWiringStrategy))));
}
public ExpressionDependency(
[NotNull] LambdaExpression instanceExpression,
[CanBeNull] IAutowiringStrategy autowiringStrategy = default(IAutowiringStrategy),
[NotNull][ItemNotNull] params LambdaExpression[] initializeInstanceExpressions)
{
_instanceExpression = instanceExpression ?? throw new ArgumentNullException(nameof(instanceExpression));
_autowiringStrategy = autowiringStrategy;
_initializeInstanceExpressions = initializeInstanceExpressions ?? throw new ArgumentNullException(nameof(initializeInstanceExpressions));
}
public BaseDependency(
[NotNull] Expression instanceExpression,
[NotNull][ItemNotNull] IEnumerable <Expression> initializeInstanceExpressions,
[NotNull] IDictionary <Type, Type> typesMap,
[CanBeNull] IAutowiringStrategy autowiringStrategy = null)
{
_createInstanceExpression = instanceExpression ?? throw new ArgumentNullException(nameof(instanceExpression));
_initializeInstanceExpressions = initializeInstanceExpressions ?? throw new ArgumentNullException(nameof(initializeInstanceExpressions));
_typesMap = typesMap ?? throw new ArgumentNullException(nameof(typesMap));
_autowiringStrategy = autowiringStrategy;
}
private AspectOrientedMetadata(
[NotNull] IDictionary <Type, Func <Attribute, Type> > typeSelectors,
[NotNull] IDictionary <Type, Func <Attribute, IComparable> > orderSelectors,
[NotNull] IDictionary <Type, Func <Attribute, object> > tagSelectors)
{
_lockObject = new LockObject();
_typeSelectors = typeSelectors;
_orderSelectors = orderSelectors;
_tagSelectors = tagSelectors;
_autowiringStrategy = default(IAutowiringStrategy);
}
public Binding([NotNull] IBinding <T> binding, [NotNull] IAutowiringStrategy autowiringStrategy)
{
if (binding == null)
{
throw new ArgumentNullException(nameof(binding));
}
Container = binding.Container;
Tokens = binding.Tokens;
Types = binding.Types;
Lifetime = binding.Lifetime;
Tags = binding.Tags;
AutowiringStrategy = autowiringStrategy;
}
private Type ResolveInstanceType(IBuildContext buildContext, IAutowiringStrategy autoWiringStrategy)
{
if (autoWiringStrategy.TryResolveType(buildContext.Container, _implementationType, buildContext.Key.Type, out var instanceType))
{
return(instanceType);
}
if (_hasGenericParamsWithConstraints)
{
return(GetInstanceTypeBasedOnTargetGenericConstrains(buildContext.Key.Type) ?? buildContext.Container.Resolve <ICannotResolveType>().Resolve(buildContext, _implementationType, buildContext.Key.Type));
}
return(_implementationType);
}
internal BuildContext(
Key key,
[NotNull] IContainer resolvingContainer,
[NotNull] ICollection <IDisposable> resources,
[NotNull] ICollection <IBuilder> builders,
[NotNull] IAutowiringStrategy defaultAutowiringStrategy,
int depth = 0)
{
Key = key;
Container = resolvingContainer ?? throw new ArgumentNullException(nameof(resolvingContainer));
_resources = resources ?? throw new ArgumentNullException(nameof(resources));
_builders = builders ?? throw new ArgumentNullException(nameof(builders));
AutowiringStrategy = defaultAutowiringStrategy ?? throw new ArgumentNullException(nameof(defaultAutowiringStrategy));
Depth = depth;
}
public bool TryCreateResolver(
Key key,
[NotNull] IContainer resolvingContainer,
[NotNull] ICollection <IBuilder> builders,
[NotNull] IAutowiringStrategy defaultAutowiringStrategy,
out Delegate resolver,
out Exception error)
{
var typeDescriptor = key.Type.Descriptor();
var buildContext = new BuildContext(key, resolvingContainer, _resources, builders, defaultAutowiringStrategy);
if (!Dependency.TryBuildExpression(buildContext, GetLifetime(typeDescriptor), out var expression, out error))
{
resolver = default(Delegate);
return(false);
}
var resolverExpression = Expression.Lambda(buildContext.Key.Type.ToResolverType(), expression, false, WellknownExpressions.ResolverParameters);
resolver = ExpressionCompiler.Shared.Compile(resolverExpression);
error = default(Exception);
return(true);
}
internal BuildContext(
[CanBeNull] BuildContext parent,
Key key,
[NotNull] IContainer resolvingContainer,
[NotNull] IEnumerable <ICompiler> compilers,
[NotNull] IEnumerable <IBuilder> builders,
[NotNull] IAutowiringStrategy defaultAutowiringStrategy,
[NotNull] ParameterExpression argsParameter,
[NotNull] ParameterExpression containerParameter,
[NotNull] IObserver <ContainerEvent> eventObserver,
int depth = 0)
{
Parent = parent;
Key = key;
Container = resolvingContainer ?? throw new ArgumentNullException(nameof(resolvingContainer));
Compilers = compilers ?? throw new ArgumentNullException(nameof(compilers));
_builders = builders ?? throw new ArgumentNullException(nameof(builders));
_eventObserver = eventObserver ?? throw new ArgumentNullException(nameof(eventObserver));
AutowiringStrategy = defaultAutowiringStrategy ?? throw new ArgumentNullException(nameof(defaultAutowiringStrategy));
ArgsParameter = argsParameter ?? throw new ArgumentNullException(nameof(argsParameter));
ContainerParameter = containerParameter ?? throw new ArgumentNullException(nameof(containerParameter));
Depth = depth;
_typesMap = parent == null ? new Dictionary <Type, Type>() : new Dictionary <Type, Type>(parent._typesMap);
}
private static IEnumerable <IMethod <MethodInfo> > GetInitializers(IContainer container, IAutowiringStrategy autoWiringStrategy, TypeDescriptor typeDescriptor)
{
var methods = typeDescriptor.GetDeclaredMethods().Select(info => new Method <MethodInfo>(info));
if (autoWiringStrategy.TryResolveInitializers(container, methods, out var initializers))
{
return(initializers);
}
if (DefaultAutowiringStrategy.Shared == autoWiringStrategy || !DefaultAutowiringStrategy.Shared.TryResolveInitializers(container, methods, out initializers))
{
initializers = Enumerable.Empty <IMethod <MethodInfo> >();
}
return(initializers);
}
/// <summary>
/// Creates an instance of dependency.
/// </summary>
/// <param name="implementationType">The autowiring implementation type.</param>
/// <param name="autowiringStrategy">The autowiring strategy.</param>
/// <param name="initializeInstanceLambdaStatements">The statements to initialize an instance.</param>
public AutowiringDependency(
[NotNull] Type implementationType,
[CanBeNull] IAutowiringStrategy autowiringStrategy = null,
[NotNull][ItemNotNull] params LambdaExpression[] initializeInstanceLambdaStatements)
{
_implementationType = implementationType ?? throw new ArgumentNullException(nameof(implementationType));
_autowiringStrategy = autowiringStrategy;
_initializeInstanceExpressions = initializeInstanceLambdaStatements ?? throw new ArgumentNullException(nameof(initializeInstanceLambdaStatements));
_typeDescriptor = implementationType.Descriptor();
if (_typeDescriptor.IsInterface())
{
throw new ArgumentException($"Type \"{implementationType}\" should not be an interface.", nameof(implementationType));
}
if (_typeDescriptor.IsAbstract())
{
throw new ArgumentException($"Type \"{implementationType}\" should not be an abstract class.", nameof(implementationType));
}
if (!_typeDescriptor.IsGenericTypeDefinition())
{
return;
}
_genericTypeParameters = _typeDescriptor.GetGenericTypeParameters();
if (_genericTypeParameters.Length > GenericTypeArguments.Arguments.Length)
{
throw new ArgumentException($"Too many generic type parameters in the type \"{implementationType}\".", nameof(implementationType));
}
_genericParamsWithConstraints = new List <GenericParamsWithConstraints>(_genericTypeParameters.Length);
var genericTypePos = 0;
for (var position = 0; position < _genericTypeParameters.Length; position++)
{
var genericType = _genericTypeParameters[position];
if (!genericType.IsGenericParameter)
{
continue;
}
var descriptor = genericType.Descriptor();
if (descriptor.GetGenericParameterAttributes() == GenericParameterAttributes.None && !descriptor.GetGenericParameterConstraints().Any())
{
if (!_typesMap.TryGetValue(genericType, out var curType))
{
try
{
curType = GenericTypeArguments.Arguments[genericTypePos++];
_typesMap[genericType] = curType;
}
catch (IndexOutOfRangeException ex)
{
throw new BuildExpressionException("Too many generic arguments.", ex);
}
}
_genericTypeParameters[position] = curType;
}
else
{
_genericParamsWithConstraints.Add(new GenericParamsWithConstraints(descriptor, position));
}
}
if (_genericParamsWithConstraints.Count == 0)
{
_implementationType = _typeDescriptor.MakeGenericType(_genericTypeParameters);
}
else
{
_hasGenericParamsWithConstraints = true;
}
}
private static IMethod <ConstructorInfo> SelectConstructor(IBuildContext buildContext, TypeDescriptor typeDescriptor, IAutowiringStrategy autoWiringStrategy)
{
var constructors = (IEnumerable <IMethod <ConstructorInfo> >)typeDescriptor
.GetDeclaredConstructors()
.Where(method => !method.IsStatic && (method.IsAssembly || method.IsPublic))
.Select(info => new Method <ConstructorInfo>(info));
if (autoWiringStrategy.TryResolveConstructor(buildContext.Container, constructors, out var ctor))
{
return(ctor);
}
if (DefaultAutowiringStrategy.Shared != autoWiringStrategy && DefaultAutowiringStrategy.Shared.TryResolveConstructor(buildContext.Container, constructors, out ctor))
{
return(ctor);
}
return(buildContext.Container.Resolve <ICannotResolveConstructor>().Resolve(buildContext, constructors));
}
/// <summary>
/// Specify a type selector for an aspect oriented autowiring strategy.
/// </summary>
/// <typeparam name="TTypeAttribute">The type metadata attribute.</typeparam>
/// <param name="strategy">The base aspect oriented autowiring strategy.</param>
/// <param name="typeSelector">The type selector.</param>
/// <returns>The instance of aspect oriented autowiring strategy.</returns>
public static IAutowiringStrategy Type <TTypeAttribute>(this IAutowiringStrategy strategy, [NotNull] Func <TTypeAttribute, Type> typeSelector)
where TTypeAttribute : Attribute =>
AspectOrientedMetadata.Type(
public CustomAutowiringStrategy(IContainer container, IAutowiringStrategy baseStrategy) =>
public FullAutoWiringDependency([NotNull] Type type, [CanBeNull] IAutowiringStrategy autoWiringStrategy = null)
{
_type = type ?? throw new ArgumentNullException(nameof(type));
_autoWiringStrategy = autoWiringStrategy;
_registeredTypeDescriptor = type.Descriptor();
if (_registeredTypeDescriptor.IsInterface())
{
throw new ArgumentException($"Type \"{type}\" should not be an interface.", nameof(type));
}
if (_registeredTypeDescriptor.IsAbstract())
{
throw new ArgumentException($"Type \"{type}\" should not be an abstract class.", nameof(type));
}
if (!_registeredTypeDescriptor.IsGenericTypeDefinition())
{
return;
}
_registeredGenericTypeParameters = _registeredTypeDescriptor.GetGenericTypeParameters();
var genericTypePos = 0;
var typesMap = new Dictionary <Type, Type>();
for (var position = 0; position < _registeredGenericTypeParameters.Length; position++)
{
var genericType = _registeredGenericTypeParameters[position];
if (!genericType.IsGenericParameter)
{
continue;
}
var descriptor = genericType.Descriptor();
if (!descriptor.GetGenericParameterConstraints().Any())
{
if (!typesMap.TryGetValue(genericType, out var curType))
{
try
{
curType = GenericTypeArguments[genericTypePos++];
typesMap[genericType] = curType;
}
catch (IndexOutOfRangeException ex)
{
throw new BuildExpressionException("Too many generic arguments.", ex);
}
}
_registeredGenericTypeParameters[position] = curType;
}
else
{
_genericParamsWithConstraints[position] = descriptor;
}
}
if (_genericParamsWithConstraints.Count == 0)
{
_type = _registeredTypeDescriptor.MakeGenericType(_registeredGenericTypeParameters);
}
else
{
_hasGenericParamsWithConstraints = true;
}
}
public static IBinding <T> Autowiring <T>([NotNull] this IBinding <T> binding, [NotNull] IAutowiringStrategy autowiringStrategy)
{
if (binding == null)
{
throw new ArgumentNullException(nameof(binding));
}
if (autowiringStrategy == null)
{
throw new ArgumentNullException(nameof(autowiringStrategy));
}
return(new Binding <T>(binding, autowiringStrategy));
}
