private MethodInterceptorBuilder ImplementProceed(MethodDefinition method, ExtensionPointAttribute extensionPoint)
{
LogInfo($"ImplementProceed: {method.ReturnType}");
var builder = new MethodInterceptorBuilder(this, method, extensionPoint);
var proceed = new MethodDefinition("Proceed", MethodAttributes.Public, TypeSystem.ObjectReference);
proceed.Parameters.Add(new ParameterDefinition(Context.ObjectArrayType));
builder.Proceed = proceed;
builder.Build();
proceed.Body.Emit(il =>
{
builder.EmitCallOriginal(il);
if (method.ReturnType.CompareTo(TypeSystem.VoidReference))
{
// Void methods won't leave anything on the stack, but the proceed method is expected to return a value
il.Emit(OpCodes.Ldnull);
}
else
{
// If it's a value type, box it
il.EmitBoxIfNeeded(method.ReturnType);
}
il.Emit(OpCodes.Ret);
});
return(builder);
}
private MethodInterceptorBuilder ImplementProceed(MethodDefinition method, ExtensionPointAttribute extensionPoint)
{
var builder = new MethodInterceptorBuilder(this, method, extensionPoint);
var taskReturnType = Context.TaskTType.MakeGenericInstanceType(TypeSystem.ObjectReference);
var proceed = new MethodDefinition("Proceed", MethodAttributes.Public, taskReturnType);
proceed.Parameters.Add(new ParameterDefinition(Context.ObjectArrayType));
builder.Proceed = proceed;
builder.Build();
proceed.Body.Emit(il =>
{
builder.EmitCallOriginal(il);
// Before we return, we need to wrap the original `Task<T>` into a `Task<object>`
var unwrappedReturnType = ((GenericInstanceType)method.ReturnType).GenericArguments[0];
var typedInvoke = asyncInvokerWrap.MakeGenericMethod(unwrappedReturnType);
il.Emit(OpCodes.Call, typedInvoke);
il.Emit(OpCodes.Ret);
});
return(builder);
}
