private void AddOnDispatchMethod(
TypeBuilder classBuilder,
InterfaceDescription interfaceDescription,
MethodBodyTypesBuildResult methodBodyTypesBuildResult)
{
var dispatchMethodImpl = CodeBuilderUtils.CreateProtectedMethodBuilder(
classBuilder,
"OnDispatch",
typeof(void),
typeof(int), // method id
typeof(object), // remote object
typeof(object)); // message body
var ilGen = dispatchMethodImpl.GetILGenerator();
var castedObject = ilGen.DeclareLocal(interfaceDescription.InterfaceType);
ilGen.Emit(OpCodes.Ldarg_2); // load object
ilGen.Emit(OpCodes.Castclass, interfaceDescription.InterfaceType);
ilGen.Emit(OpCodes.Stloc, castedObject); // store casted result to local 0
foreach (var methodDescription in interfaceDescription.Methods)
{
if (!TypeUtility.IsVoidType(methodDescription.ReturnType))
{
continue;
}
var elseLable = ilGen.DefineLabel();
this.AddIfMethodIdInvokeBlock(
ilGen: ilGen,
elseLabel: elseLable,
castedObject: castedObject,
methodDescription: methodDescription,
requestBodyType: methodBodyTypesBuildResult.MethodBodyTypesMap[methodDescription.Name]
.RequestBodyType);
ilGen.MarkLabel(elseLable);
}
ilGen.ThrowException(typeof(MissingMethodException));
}
private void AddCreateResponseBodyMethod(
TypeBuilder classBuilder,
InterfaceDescription interfaceDescription,
MethodBodyTypesBuildResult methodBodyTypesBuildResult)
{
var methodBuilder = CodeBuilderUtils.CreateProtectedMethodBuilder(
classBuilder,
"CreateResponseBody",
typeof(object), // responseBody - return value
typeof(int), // methodId
typeof(object)); // retval from the invoked method on the remoted object
var ilGen = methodBuilder.GetILGenerator();
foreach (var methodDescription in interfaceDescription.Methods)
{
var methodBodyTypes = methodBodyTypesBuildResult.MethodBodyTypesMap[methodDescription.Name];
if (methodBodyTypes.ResponseBodyType == null)
{
continue;
}
var elseLabel = ilGen.DefineLabel();
this.AddIfMethodIdCreateResponseBlock(
ilGen,
elseLabel,
methodDescription.Id,
methodBodyTypes.ResponseBodyType);
ilGen.MarkLabel(elseLabel);
}
// return null; (if method id's do not match)
ilGen.Emit(OpCodes.Ldnull);
ilGen.Emit(OpCodes.Ret);
}
