private void AddGetReturnValueMethod(
TypeBuilder classBuilder,
IDictionary <InterfaceDescription, MethodBodyTypesBuildResult> methodBodyTypesResultsMap)
{
var methodBuilder = CodeBuilderUtils.CreateProtectedMethodBuilder(
classBuilder,
"GetReturnValue",
typeof(object), // return value from the reponseBody
typeof(int), // interfaceId
typeof(int), // methodId
typeof(object)); // responseBody
var ilGen = methodBuilder.GetILGenerator();
foreach (var item in methodBodyTypesResultsMap)
{
var interfaceDescription = item.Key;
var methodBodyTypesMap = item.Value.MethodBodyTypesMap;
foreach (var methodDescription in interfaceDescription.Methods)
{
var methodBodyTypes = methodBodyTypesMap[methodDescription.Name];
if (methodBodyTypes.ResponseBodyType == null)
{
continue;
}
var elseLabel = ilGen.DefineLabel();
this.AddIfInterfaceIdAndMethodIdReturnRetvalBlock(
ilGen,
elseLabel,
interfaceDescription.Id,
methodDescription.Id,
methodBodyTypes.ResponseBodyType);
ilGen.MarkLabel(elseLabel);
}
}
// return null; (if method id's and interfaceId do not match)
ilGen.Emit(OpCodes.Ldnull);
ilGen.Emit(OpCodes.Ret);
}
private void AddOnDispatchAsyncMethod(
TypeBuilder classBuilder,
InterfaceDescription interfaceDescription,
MethodBodyTypesBuildResult methodBodyTypesBuildResult)
{
var dispatchMethodImpl = CodeBuilderUtils.CreateProtectedMethodBuilder(
classBuilder,
"OnDispatchAsync",
typeof(Task <object>),
typeof(int), // methodid
typeof(object), // remoted object
typeof(object), // requestBody
typeof(CancellationToken)); // CancellationToken
var ilGen = dispatchMethodImpl.GetILGenerator();
var castedObject = ilGen.DeclareLocal(interfaceDescription.InterfaceType);
ilGen.Emit(OpCodes.Ldarg_2); // load remoted 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.IsTaskType(methodDescription.ReturnType))
{
continue;
}
var elseLable = ilGen.DefineLabel();
this.AddIfMethodIdInvokeAsyncBlock(
ilGen: ilGen,
elseLabel: elseLable,
castedObject: castedObject,
methodDescription: methodDescription,
methodBodyTypes: methodBodyTypesBuildResult.MethodBodyTypesMap[methodDescription.Name]);
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);
}
