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C# MethodDefinition.InsertInstructions方法代码示例

本文整理汇总了C#中Mono.Cecil.MethodDefinition.InsertInstructions方法的典型用法代码示例。如果您正苦于以下问题:C# MethodDefinition.InsertInstructions方法的具体用法?C# MethodDefinition.InsertInstructions怎么用?C# MethodDefinition.InsertInstructions使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Mono.Cecil.MethodDefinition的用法示例。


在下文中一共展示了MethodDefinition.InsertInstructions方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: AddUnsubscribeMethod

        // Addes a new method to the class that can unsubscribe a weak event handler from the event delegate
        // E.g.
#pragma warning disable S125 // Sections of code should not be "commented out"
        //      [CompilerGenerated]
        //      private void <event name>_Weak_Unsubscribe(EventHandler< eventargsType > weh)
        //      {
        //          this.EventDelegate = (<event type>) Delegate.Remove(this.EventDelegate, (<event type>)weh);
        //      }
#pragma warning restore S125 // Sections of code should not be "commented out"

        // This is used as a call back by the weak event handler to clean up when the target is garbage collected.
        public MethodDefinition AddUnsubscribeMethod()
        {
            // private void <event name>_Weak_Unsubscribe(EventHandler< eventargsType > weh)
            string unsubscribeMethodName = string.Format(CultureInfo.InvariantCulture, "<{0}>_Weak_Unsubscribe", _eventDelegate.Name);
            MethodDefinition unsubscribe = new MethodDefinition(unsubscribeMethodName, GetUnsubscribeMethodAttributes(), _eventDelegate.Module.TypeSystem.Void);
            unsubscribe.Parameters.Add(new ParameterDefinition(_closedGenericEventHandler));

            // [CompilerGenerated]
            unsubscribe.CustomAttributes.Add(_moduleimporter.CompilerGeneratedAttribute);

            _eventDelegate.DeclaringType.Methods.Add(unsubscribe);

            var rootEmitter = new EmptyEmitter(unsubscribe, _moduleimporter);
            var weakHandler = rootEmitter.LoadMethodFirstArg();
            if (!_isGenericHandler)
            {
                weakHandler = rootEmitter.DelegateConvert(weakHandler, _eventDelegate.FieldType);
            }
            var removeFromFieldDelegate = rootEmitter.CallDelegateRemove(rootEmitter.LoadField(_eventDelegate), weakHandler);
            var compatibleHandler = removeFromFieldDelegate;
            if (!_isGenericHandler)
            {
                compatibleHandler = rootEmitter.DelegateConvert(removeFromFieldDelegate, _eventDelegate.FieldType);
            }
            var instructions = rootEmitter.StoreField(compatibleHandler, _eventDelegate).Return();
            unsubscribe.InsertInstructions(instructions, 0);

            return unsubscribe;
        }
开发者ID:adbancroft,项目名称:WeakEvents.Fody,代码行数:40,代码来源:WeakEventWeaver.cs

示例2: ProcessAddMethod

        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);
                }
            }
        }
开发者ID:adbancroft,项目名称:WeakEvents.Fody,代码行数:17,代码来源:EventWeaver.cs


注:本文中的Mono.Cecil.MethodDefinition.InsertInstructions方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。