/// <inheritdoc />
public IEnumerable <ServiceBinding> Resolve(IInstanceFactoryResolver resolver, Type type)
{
if (!type.IsInterface && !type.IsAbstract && !type.IsPrimitive && type != typeof(string))
{
if (type.GetConstructorCandidates().Any())
{
yield return(new ServiceBinding(type, BindingMetadata.GeneratedInstance, resolver.Settings.ConstructorResolver.TryResolveConstructorExpression(type), type, resolver.Settings.ConstructorResolver, Lifetimes.Transient));
}
}
}
private IEnumerable <ServiceBinding> Resolve <TElement>(IInstanceFactoryResolver resolver, Type type)
{
foreach (InstanceFactory instanceFactory in resolver.TryResolveAll(typeof(TElement)))
{
var newBinding = new ServiceBinding(type, BindingMetadata.GeneratedInstance, instanceFactory.Context.Expression, instanceFactory.Context.Expression.Type, ConstructorResolvers.Default, Lifetimes.Transient);
var expression = Expression.Lambda <Func <TElement> >(ExpressionCompiler.OptimizeExpression(instanceFactory.Context));
Func <Scoped, Expression <Func <TElement> > > del = scoped => expression; // we need to put this in a variable of this type or cast it else the static return type of the delegate will turn into a object..
var factory = new InstanceFactory(type, new ExpressionContext(expression), del);
newBinding.Factories.Add(factory);
yield return(newBinding);
}
}
/// <inheritdoc />
public IEnumerable <ServiceBinding> Resolve(IInstanceFactoryResolver resolver, Type type)
{
if (type == typeof(Container))
{
Expression expression = Expression.Call(null, _getContainer, ExpressionGenerator.ScopeParameter);
yield return(new ServiceBinding(type, BindingMetadata.GeneratedInstance, expression, type, ConstructorResolvers.Default, Lifetimes.PerContainer, null, ServiceAutoDispose.Never));
}
if (type == typeof(Scoped) || type == typeof(IServiceProvider))
{
Expression expression = Expression.Call(null, _getScope, ExpressionGenerator.ScopeParameter);
yield return(new ServiceBinding(type, BindingMetadata.GeneratedInstance, expression, type, ConstructorResolvers.Default, Lifetimes.PerContainer, null, ServiceAutoDispose.Never));
}
}
/// <inheritdoc />
public IEnumerable <ServiceBinding> Resolve(IInstanceFactoryResolver resolver, Type type)
{
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Func <>))
{
Type dependencyType = type.GenericTypeArguments[0];
foreach (InstanceFactory factory in resolver.TryResolveAll(dependencyType))
{
LambdaExpression baseExpression = Expression.Lambda(factory.Context.Expression);
yield return(new ServiceBinding(type, BindingMetadata.GeneratedInstance, baseExpression, type, ConstructorResolvers.Default, Lifetimes.Transient)
{
BaseExpression = new ExpressionContext(baseExpression)
});
}
}
}
private IEnumerable <ServiceBinding> Resolve <TElement>(IInstanceFactoryResolver resolver, Type type)
{
Func <Scoped, TElement>[] instanceFactories = resolver.TryResolveAll(typeof(TElement)).Select(x => (Func <Scoped, TElement>)(Delegate) x.Factory).ToArray();
yield return(new ServiceBinding(new[]
{
typeof(Func <Scoped, TElement>[]),
}, BindingMetadata.GeneratedInstance, Expression.Constant(instanceFactories), typeof(Func <Scoped, TElement>[]), ConstructorResolvers.Default, Lifetimes.PerContainer));
Expression expression = ConstructorResolvers.Default.ResolveConstructorExpression(typeof(InstanceFactoryList <TElement>)) !;
yield return(new ServiceBinding(new[]
{
typeof(IEnumerable <TElement>),
typeof(IReadOnlyCollection <TElement>),
typeof(IReadOnlyList <TElement>),
}, BindingMetadata.GeneratedInstance, expression, expression.GetReturnType(), ConstructorResolvers.Default, Lifetimes.Transient));
//lists
Expression <Func <Scoped, List <TElement> > > listExpression = scope => CreateList(scope, instanceFactories);
yield return(new ServiceBinding(new[]
{
typeof(List <TElement>),
typeof(IList <TElement>),
typeof(ICollection <TElement>),
}, BindingMetadata.GeneratedInstance, listExpression, listExpression.GetReturnType(), ConstructorResolvers.Default, Lifetimes.Transient));
//sets
Expression <Func <Scoped, HashSet <TElement> > > setExpression = scope => CreateSet(scope, instanceFactories);
yield return(new ServiceBinding(new[]
{
typeof(HashSet <TElement>),
typeof(ISet <TElement>),
}, BindingMetadata.GeneratedInstance, setExpression, setExpression.GetReturnType(), ConstructorResolvers.Default, Lifetimes.Transient));
//arrays
Expression <Func <Scoped, TElement[]> > arrayExpression = scope => CreateArray(scope, instanceFactories);
yield return(new ServiceBinding(new[]
{
typeof(TElement[]),
}, BindingMetadata.GeneratedInstance, arrayExpression, arrayExpression.GetReturnType(), ConstructorResolvers.Default, Lifetimes.Transient));
}
/// <inheritdoc />
public IEnumerable <ServiceBinding> Resolve(IInstanceFactoryResolver resolver, Type type)
{
if (type.IsGenericType && !type.ContainsGenericParameters)
{
Type genericTypeDefinition = type.GetGenericTypeDefinition();
ServiceBinding?openGenericBinding = resolver.TryGetBinding(genericTypeDefinition);
if (openGenericBinding != null)
{
Type openGenericType = openGenericBinding.ConcreteType;
Type closedGenericType = openGenericType.MakeGenericType(type.GenericTypeArguments);
Expression?newExpression = openGenericBinding.ConstructorResolver.ResolveConstructorExpression(closedGenericType);
yield return(new ServiceBinding(type, openGenericBinding.BindingMetadata, newExpression, closedGenericType,
openGenericBinding.ConstructorResolver, openGenericBinding.Lifetime, openGenericBinding.Finalizer,
openGenericBinding.NeedsDispose));
}
}
}
/// <inheritdoc />
public IEnumerable <ServiceBinding> Resolve(IInstanceFactoryResolver resolver, Type type)
{
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Expression <>) && type.GenericTypeArguments.Length == 1)
{
Type funcType = type.GenericTypeArguments[0];
if (funcType.GetGenericTypeDefinition() == typeof(Func <>) && funcType.GenericTypeArguments.Length == 1)
{
Type serviceType = funcType.GenericTypeArguments[0];
MethodInfo resolveMethod = GenericResolveMethod.MakeGenericMethod(serviceType);
var bindings = (IEnumerable <ServiceBinding>)resolveMethod.Invoke(this, new object[] { resolver, type });
foreach (var binding in bindings)
{
yield return(binding);
}
}
}
}
/// <inheritdoc />
public IEnumerable <ServiceBinding> Resolve(IInstanceFactoryResolver resolver, Type type)
{
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Lazy <>))
{
Type funcType = typeof(Func <>).MakeGenericType(type.GenericTypeArguments[0]);
Type lazyType = typeof(Lazy <>).MakeGenericType(type.GenericTypeArguments[0]);
ConstructorInfo constructor = lazyType.GetConstructor(new[] { funcType });
foreach (InstanceFactory factory in resolver.TryResolveAll(funcType))
{
var context = (ExpressionContext)factory.Context;
context.Expression = Expression.New(constructor, factory.Context.Expression);
var newBinding = new ServiceBinding(type, BindingMetadata.GeneratedInstance, context.Expression, type, ConstructorResolvers.Default, Lifetimes.Transient);
newBinding.Factories.Add(new InstanceFactory(type, context));
yield return(newBinding);
}
}
}
/// <inheritdoc />
public IEnumerable <ServiceBinding> Resolve(IInstanceFactoryResolver resolver, Type type)
{
Type?elementType = null;
if (type.IsArray)
{
elementType = type.GetElementType();
}
else if (type.IsGenericType)
{
Type openGenericCollectionType = type.GetGenericTypeDefinition();
Type[] collectionTypes =
{
typeof(IEnumerable <>),
typeof(IReadOnlyCollection <>),
typeof(IReadOnlyList <>),
typeof(List <>),
typeof(IList <>),
typeof(ICollection <>),
typeof(HashSet <>),
typeof(ISet <>),
};
if (collectionTypes.Contains(openGenericCollectionType))
{
elementType = type.GenericTypeArguments[0];
}
}
if (elementType != null)
{
MethodInfo resolveMethod = GenericResolveMethod.MakeGenericMethod(elementType);
var bindings = (IEnumerable <ServiceBinding>)resolveMethod.Invoke(this, new object[] { resolver, type });
foreach (var binding in bindings)
{
yield return(binding);
}
}
}
public ConstructorInfo DynamicSelectConstructor(Type type, IInstanceFactoryResolver instanceFactoryResolver)
{
ConstructorInfo[] constructors = type.GetConstructorCandidates().ToArray();
if (constructors.Length == 0 && !type.IsValueType)
{
throw new NoConstructorException($"Type {type} did not contain any public constructor.");
}
if (constructors.Length > 1)
{
var ordering = constructors.OrderByDescending(x => x.GetParameters().Length);
foreach (var constructorInfo in ordering)
{
if (constructorInfo.GetParameters().All(x => instanceFactoryResolver.TryResolve(x.ParameterType) != null))
{
return(constructorInfo);
}
}
}
return(constructors.FirstOrDefault());
}
public ConstructorInfo DynamicSelectConstructor(Type type, IInstanceFactoryResolver instanceFactoryResolver)
{
throw new NotImplementedException();
}
/// <inheritdoc />
public ConstructorInfo DynamicSelectConstructor(Type type, IInstanceFactoryResolver instanceFactoryResolver)
{
return(_constructorResolver.DynamicSelectConstructor(type, instanceFactoryResolver));
}