/// <summary>
/// Initializes a new instance of <see cref="AutoContainer"/>, using the
/// <paramref name="instances"/> as its registered dependencies. These
/// depenendencies will be resolvable by this instance of
/// <see cref="AutoContainer"/> via any type that exactly one dependency
/// equals, implements, or inherits from. This instance of <see cref="AutoContainer"/>
/// will use the <see cref="IResolverConstructorSelector"/> specified by
/// <paramref name="constructorSelector"/> internally to determine
/// which constructor of an arbitrary type will be selected for invocation when
/// <see cref="Get{T}"/> or <see cref="Get"/> methods are called.
/// </summary>
/// <param name="constructorSelector">
/// An object that determines which constructor should be used when creating an instance of a type.
/// If null, the value of the <see cref="DefaultResolverConstructorSelector"/> property is used.
/// </param>
/// <param name="instances">The objects to use as registered dependencies.</param>
public AutoContainer(IResolverConstructorSelector constructorSelector, IEnumerable <object> instances)
: this(
(instances ?? new object[0]).Where(x => x != null).ToList(), // Filter out nulls and .ToList() it for fast enumeration.
new ConcurrentDictionary <Type, Func <object> >(),
constructorSelector ?? DefaultResolverConstructorSelector)
{
}
public static ConstructorInfo GetConstructor(this IResolverConstructorSelector constructorSelector, Type type, IResolver resolver)
{
ConstructorInfo ctor;
if (constructorSelector.TryGetConstructor(type, resolver, out ctor))
{
return(ctor);
}
throw new ResolveException("Unable to resolve type: " + type);
}
private AutoContainer(
IEnumerable <object> instances,
ConcurrentDictionary <Type, Func <object> > bindings,
IResolverConstructorSelector constructorSelector)
{
if (instances == null)
{
throw new ArgumentNullException("instances");
}
if (bindings == null)
{
throw new ArgumentNullException("bindings");
}
if (constructorSelector == null)
{
throw new ArgumentNullException("constructorSelector");
}
_instances = instances;
_bindings = bindings;
_constructorSelector = constructorSelector;
}
/// <summary>
/// Sets the default <see cref="IResolverConstructorSelector"/>. If the
/// <see cref="DefaultResolverConstructorSelector"/> has been accessed, then calls to this method
/// have no effect.
/// </summary>
/// <param name="resolverConstructorSelector">
/// The value that <see cref="DefaultResolverConstructorSelector"/> property should return. Ignored
/// if the <see cref="DefaultResolverConstructorSelector"/> property has previously been accessed.
/// </param>
public static void SetDefaultResolverConstructorSelector(IResolverConstructorSelector resolverConstructorSelector)
{
_defaultResolverConstructorSelector.Value = resolverConstructorSelector;
}
public static bool CanGetConstructor(this IResolverConstructorSelector constructorSelector, Type type, IResolver resolver)
{
ConstructorInfo dummy;
return(constructorSelector.TryGetConstructor(type, resolver, out dummy));
}
