Пример #1
0
        public void ProcessEvent(EventDefinition eventt)
        {
            _logger.LogDebug("Beginning processing event " + eventt.Name);

            FieldReference eventDelegate = eventt.GetEventDelegate();

            if (eventDelegate != null)
            {
                if (eventDelegate.FieldType.IsValidEventDelegate())
                {
                    WeakEventWeaver weakEventWeaver = new WeakEventWeaver(eventDelegate, _moduleImporter);
                    ProcessAddMethod(eventt.AddMethod, weakEventWeaver);
                    ProcessRemoveMethod(eventt.RemoveMethod, weakEventWeaver);
                }
                else
                {
                    _logger.LogInfo("Skipping event " + eventt + ", incompatible event delegate type");
                }
            }
            else
            {
                _logger.LogInfo("Skipping event " + eventt + ", could not determine the event delegate field");
            }

            _logger.LogDebug("Finished processing event " + eventt.Name);
        }
Пример #2
0
        public void ProcessEvent(EventDefinition eventt)
        {
            _logger.LogDebug("Beginning processing event " + eventt.Name);

            FieldReference eventDelegate = eventt.GetEventDelegate();

            if (eventDelegate != null)
            {
                if (eventDelegate.FieldType.IsValidEventDelegate())
                {
                    WeakEventWeaver weakEventWeaver = new WeakEventWeaver(eventDelegate, _moduleImporter);
                    ProcessAddMethod(eventt.AddMethod, weakEventWeaver);
                    ProcessRemoveMethod(eventt.RemoveMethod, weakEventWeaver);
                }
                else
                {
                    _logger.LogInfo("Skipping event " + eventt + ", incompatible event delegate type");
                }
            }
            else
            {
                _logger.LogInfo("Skipping event " + eventt + ", could not determine the event delegate field");
            }

            _logger.LogDebug("Finished processing event " + eventt.Name);
        }
Пример #3
0
        private static void ProcessAddMethod(MethodDefinition addMethod, WeakEventWeaver weakEventWeaver)
        {
            var weakEventHandler = weakEventWeaver.CreateEventHandlerVariable(addMethod);
            var makeWeak = weakEventWeaver.GenerateMakeWeakIl(addMethod, weakEventWeaver.AddUnsubscribeMethod(), weakEventHandler);
            int oldCodeIndex = addMethod.InsertInstructions(makeWeak, 0);

            // Now replace any further use of the method parameter (Ldarg_1, or Ldarg_0 if static) with the weak event handler
            var instructionToReplace = GetMethodLoadFirstArgumentCode(addMethod);
            var instructions = addMethod.Body.Instructions;
            for (int i = oldCodeIndex; i < instructions.Count; i++)
            {
                if (instructions[i].OpCode.Code.Equals(instructionToReplace))
                {
                    instructions[i] = Instruction.Create(OpCodes.Ldloc, weakEventHandler);
                }
            }
        }
Пример #4
0
        private static void ProcessAddMethod(MethodDefinition addMethod, WeakEventWeaver weakEventWeaver)
        {
            var weakEventHandler = weakEventWeaver.CreateEventHandlerVariable(addMethod);
            var makeWeak         = weakEventWeaver.GenerateMakeWeakIl(addMethod, weakEventWeaver.AddUnsubscribeMethod(), weakEventHandler);
            int oldCodeIndex     = addMethod.InsertInstructions(makeWeak, 0);

            // Now replace any further use of the method parameter (Ldarg_1, or Ldarg_0 if static) with the weak event handler
            var instructionToReplace = GetMethodLoadFirstArgumentCode(addMethod);
            var instructions         = addMethod.Body.Instructions;

            for (int i = oldCodeIndex; i < instructions.Count; i++)
            {
                if (instructions[i].OpCode.Code.Equals(instructionToReplace))
                {
                    instructions[i] = Instruction.Create(OpCodes.Ldloc, weakEventHandler);
                }
            }
        }