public static void CreateFor(ContractInfo contractMembers, object contractObject,
IInterlocutor interlocutor)
{
Dictionary <PropertyInfo, string> delegateToMethodsMap;
Type type;
CreateHandlerType(contractMembers, out delegateToMethodsMap, out type);
var delegateHandler = Activator.CreateInstance(type, interlocutor);
//myContract.Callback += delegateHandler.CallbackDelegateHandler;
foreach (var method in delegateToMethodsMap)
{
method.Key.SetValue(contractObject, Delegate.CreateDelegate(method.Key.PropertyType, delegateHandler, method.Value));
}
}
public static void CreateFor(ContractInfo contractMembers, object contractObject,
IInterlocutor interlocutor)
{
Dictionary <PropertyInfo, string> delegateToMethodsMap;
Type type;
CreateHandlerType(contractMembers, out delegateToMethodsMap, out type);
var delegateHandler = Activator.CreateInstance(type, interlocutor);
//Set handlers for origin contract delegate properties:
foreach (var method in delegateToMethodsMap)
{
var del = delegateHandler
.GetType()
.GetMethod(method.Value)
.CreateDelegate(method.Key.PropertyType, delegateHandler);
method.Key.SetValue(contractObject, del);
}
}
public static ContractInfo Link <TInterface>(TInterface contract, IInterlocutor interlocutor)
{
var contractType = contract.GetType();
var interfaceType = typeof(TInterface);
ContractInfo contractMemebers = GetContractMemebers(contractType, interfaceType);
foreach (var method in contractMemebers.GetMethods())
{
if (method.Value.ReturnParameter.ParameterType == typeof(void))
{
//Say handler method:
interlocutor.SetIncomeSayCallHandler(method.Key, args => method.Value.Invoke(contract, args));
}
else
{
//Ask handler method:
interlocutor.SetIncomeAskCallHandler(method.Key, args => method.Value.Invoke(contract, args));
}
}
OriginCallbackDelegatesHandlerFactory.CreateFor(contractMemebers, contract, interlocutor);
return(contractMemebers);
}
public static T CreateProxyContract <T>(IInterlocutor interlocutor)
{
var interfaceType = typeof(T);
TypeBuilder typeBuilder = CreateProxyTypeBuilder <T>();
typeBuilder.AddInterfaceImplementation(interfaceType);
const string interlocutorFieldName = "_interlocutor";
var outputApiFieldInfo = typeBuilder.DefineField(
interlocutorFieldName,
typeof(IInterlocutor),
FieldAttributes.Private);
var sayMehodInfo = interlocutor.GetType().GetMethod("Say", new[] { typeof(int), typeof(object[]) });
var contractMemebers = ParseContractInterface(typeof(T));// new ContractsMemberInfo(typeof(T));
foreach (var eventInfo in interfaceType.GetEvents())
{
throw new InvalidContractMemeberException(eventInfo, interfaceType);
}
#region interface methods implementation
foreach (var method in contractMemebers.GetMethods())
{
var methodBuilder = EmitHelper.ImplementInterfaceMethod(method.Value, typeBuilder);
var returnType = method.Value.ReturnType;
MethodInfo askOrSayMethodInfo = null;
if (returnType == typeof(void))
{
askOrSayMethodInfo = sayMehodInfo;
}
else
{
askOrSayMethodInfo = interlocutor
.GetType()
.GetMethod("Ask", new[] { typeof(int), typeof(object[]) })
.MakeGenericMethod(returnType);
}
EmitHelper.GenerateSayOrAskMethodBody(
messageTypeId: method.Key,
interlocutorSayOrAskMethodInfo: askOrSayMethodInfo,
interlocutorFieldInfo: outputApiFieldInfo,
methodBuilder: methodBuilder,
callParameters: method.Value.GetParameters().Select(p => p.ParameterType).ToArray());
}
#endregion
var constructorCodeGeneration = new List <Action <ILGenerator> >();
#region interface delegate properties implementation
foreach (var property in contractMemebers.GetProperties())
{
var propertyBuilder = EmitHelper.ImplementInterfaceProperty(typeBuilder, property.Value);
var delegateInfo = ReflectionHelper.GetDelegateInfoOrNull(propertyBuilder.PropertyBuilder.PropertyType);
if (delegateInfo == null)
{
//the property is not an delegate
throw new InvalidContractMemeberException(property.Value, interfaceType);
}
// Create handler for every delegate property
var handleMethodNuilder = ImplementAndGenerateHandleMethod(
typeBuilder,
delegateInfo,
propertyBuilder.FieldBuilder);
constructorCodeGeneration.Add(
iLGenerator => GenerateEventSubscribtion(iLGenerator, outputApiFieldInfo, property.Key, handleMethodNuilder));
}
#endregion
EmitHelper.ImplementPublicConstructor(
typeBuilder,
new [] { outputApiFieldInfo },
constructorCodeGeneration);
var finalType = typeBuilder.CreateTypeInfo().AsType();
return((T)Activator.CreateInstance(finalType, interlocutor));
}
