object instantiateByReflectionConstructor(ILifetimeScope lifetimeScope, Type t)
{
var constructors = t.GetConstructors();
if (constructors.Length == 0)
{
throw new ResolveException("failed to instantiate type {0}: no public constructor", t);
}
var constructor = selectPreferredConstructor(constructors);
var parameters = constructor.GetParameters();
var resolvedObjects = new object[parameters.Length];
foreach (var p in parameters.indices())
{
var obj = lifetimeScope.resolve(parameters[p].ParameterType);
resolvedObjects[p] = obj;
}
var instance = constructor.Invoke(resolvedObjects);
lifetimeScope.Debug("inst {2,8:X}: {0} => {1}".fmt(t.Name, instance, (uint)instance.GetHashCode()));
return(instance);
}
object buildFromGenericByUsingAGenerator(ILifetimeScope lifetimeScope, Type genericInterface)
{
Debug.Assert(genericInterface.IsInterface && genericInterface.IsGenericType && !genericInterface.IsGenericTypeDefinition);
var def = genericInterface.GetGenericTypeDefinition();
var factoryMethod = tryResolveFactoryMethod(def);
if (factoryMethod == null)
{
throw new ResolveException("failed to resolve generic type {0}: failed to resolve interface", genericInterface);
}
var arguments = genericInterface.GetGenericArguments();
var methodTypeArguments = factoryMethod.GetGenericArguments();
if (arguments.Length != methodTypeArguments.Length)
{
throw new ResolveException("failed to find generators method for type {0}, number of type arguments are not matching", genericInterface);
}
var concreteMethod = factoryMethod.MakeGenericMethod(arguments);
var generated_ = callStaticMethod(lifetimeScope, concreteMethod);
// a generated object must be owned by the scope!
lifetimeScope.own(generated_);
lifetimeScope.Debug("gent {2,8:X}: {0} => {1}".fmt(genericInterface.Name, generated_, generated_ == null ? 0 : (uint)generated_.GetHashCode()));
return(generated_);
}
object buildFromGenericByUsingAGenerator(ILifetimeScope lifetimeScope, Type genericInterface)
{
Debug.Assert(genericInterface.IsInterface && genericInterface.IsGenericType && !genericInterface.IsGenericTypeDefinition);
var def = genericInterface.GetGenericTypeDefinition();
var factoryMethod = tryResolveFactoryMethod(def);
if (factoryMethod == null)
throw new ResolveException("failed to resolve generic type {0}: failed to resolve interface", genericInterface);
var arguments = genericInterface.GetGenericArguments();
var methodTypeArguments = factoryMethod.GetGenericArguments();
if (arguments.Length != methodTypeArguments.Length)
throw new ResolveException("failed to find generators method for type {0}, number of type arguments are not matching", genericInterface);
var concreteMethod = factoryMethod.MakeGenericMethod(arguments);
var generated_ = callStaticMethod(lifetimeScope, concreteMethod);
// a generated object must be owned by the scope!
lifetimeScope.own(generated_);
lifetimeScope.Debug("gent {2,8:X}: {0} => {1}".fmt(genericInterface.Name, generated_, generated_ == null ? 0 : (uint)generated_.GetHashCode()));
return generated_;
}
/*
This method is the only entry point to build and instantiate an instance of type t that is
bound to the given lifetime scope.
*/
object IKonstruktor.build(ILifetimeScope lifetimeScope, Type t)
{
#if DEBUG
lifetimeScope.Debug("building {0}".fmt(t.Name));
Debug.Assert(_frozen);
#endif
Func<ILifetimeScope, object> explicitGenerator;
if (_explicitGenerators.TryGetValue(t, out explicitGenerator))
return buildByExplicitGenerator(explicitGenerator, lifetimeScope);
return t.IsInterface ? buildFromInterface(lifetimeScope, t) : instantiate(lifetimeScope, t);
}
/*
* This method is the only entry point to build and instantiate an instance of type t that is
* bound to the given lifetime scope.
*/
object IKonstruktor.build(ILifetimeScope lifetimeScope, Type t)
{
#if DEBUG
lifetimeScope.Debug("building {0}".fmt(t.Name));
Debug.Assert(_frozen);
#endif
Func <ILifetimeScope, object> explicitGenerator;
if (_explicitGenerators.TryGetValue(t, out explicitGenerator))
{
return(buildByExplicitGenerator(explicitGenerator, lifetimeScope));
}
return(t.IsInterface ? buildFromInterface(lifetimeScope, t) : instantiate(lifetimeScope, t));
}
object instantiateByReflectionConstructor(ILifetimeScope lifetimeScope, Type t)
{
var constructors = t.GetConstructors();
if (constructors.Length == 0)
throw new ResolveException("failed to instantiate type {0}: no public constructor", t);
var constructor = selectPreferredConstructor(constructors);
var parameters = constructor.GetParameters();
var resolvedObjects = new object[parameters.Length];
foreach (var p in parameters.indices())
{
var obj = lifetimeScope.resolve(parameters[p].ParameterType);
resolvedObjects[p] = obj;
}
var instance = constructor.Invoke(resolvedObjects);
lifetimeScope.Debug("inst {2,8:X}: {0} => {1}".fmt(t.Name, instance, (uint)instance.GetHashCode()));
return instance;
}