C# Can'；t在C+中处理AccessViolationException+/CLI 我对C++和CLI不太熟悉，但我很久以前就做过C++。我试图调试AccessViolationException我在JSCore项目中的JSContext:：EvaluateScript方法的WebKit.NET中。以下是导致异常的代码行： JSValueRef result = NULL; try { result = JSEvaluateScript(_context, jsScript, /*(JSObjectRef)jsObj*/NULL, NULL, 0, &exception); } catch(...) { }

此错误将随机发生。我知道

\u context

和

jsScript

不为空。奇怪的是，当错误发生时，Program.cs文件打开，异常出现在

Application.Run（new Form1（））上行带有一个
targetingException
，但我可以在IntelliTrace中看到，就在这之前，在上面引用的行中出现了这个
AccessViolationException
，因此我假设这是导致
targetingException
异常的异常

另外，如果我在上面的一行（
result=JSEvaluateScript…
）中设置一个断点，然后在后面设置另一个断点，第一个断点将被命中，然后我按F10，第二个断点将不会被命中，因此异常应该发生在第一个断点上。另外，
JSEvaluateScript
位于
WebKit
dll中，因此我无法进入它

但是，
try/catch
，它本来不在那里，但似乎没有捕捉到异常，所以我不确定发生了什么。我可以通过在应用程序中执行一组操作来重现错误，但无法理解为什么这些操作会导致错误。大多数情况下，使用相同参数调用
JSContext:：EvaluateScript
不会导致异常

有没有关于如何诊断的建议？我没有主意了

编辑：我刚刚做了一些调试，错误也可能发生在其他一些随机行上。所以我很确定这与上面的一行无关

编辑2:以下是堆栈跟踪：

>   JSCore.dll!WebKit.JSCore.JSContext.EvaluateScript(string script = {unknown}, object thisObject = {unknown}, string sourceUrl = {unknown}, int startingLineNumber = {unknown})   
    JSCore.dll!WebKit.JSCore.JSContext.EvaluateScript(string script = {unknown})    
    WebKitBrowserTest.exe!Player.WebKitWraps.JSObjectWrap.GetExpando()  
    WebKitBrowserTest.exe!Get Player.WebKitWraps.JSObjectWrap.Expando() 
    WebKitBrowserTest.exe!Player.WebKitWraps.JSObjectWrap.Equals(Player.WebKitWraps.JSObjectWrap other = {Player.WebKitWraps.ElementWrap})  
    WebKitBrowserTest.exe!Player.WebKitWraps.JSObjectWrap.op_Equality(Player.WebKitWraps.JSObjectWrap a = {Player.WebKitWraps.ElementWrap}, Player.WebKitWraps.JSObjectWrap b = {Player.WebKitWraps.ElementWrap})   
    WebKitBrowserTest.exe!Player.WebKitWraps.JSObjectWrap.op_Inequality(Player.WebKitWraps.JSObjectWrap a = {Player.WebKitWraps.ElementWrap}, Player.WebKitWraps.JSObjectWrap b = {Player.WebKitWraps.ElementWrap}) 
    WebKitBrowserTest.exe!WebScraperAndPlayer.SelectionEditor.SelectPrevSibling(WebScraperAndPlayer.BrowserSelector selector = {WebScraperAndPlayer.BrowserSelector})   
    WebKitBrowserTest.exe!WebScraperAndPlayer.SelectionEditor.WillSelectAny(System.Action<WebScraperAndPlayer.BrowserSelector> selectFunction = {System.Action<WebScraperAndPlayer.BrowserSelector>})   
    WebKitBrowserTest.exe!WebScraperAndPlayer.SelectionEditor.UpdateAbilities() 
    WebKitBrowserTest.exe!WebScraperAndPlayer.SelectionEditor.SetExecutionState(Player.Actions.ExecutionState value = Stopped)  
    WebKitBrowserTest.exe!Set WebScraperAndPlayer.SelectionEditor.ExecutionState(Player.Actions.ExecutionState value = Stopped) 
    mscorlib.dll!System.RuntimeMethodHandle.InvokeMethodFast(System.IRuntimeMethodInfo method = {unknown}, object target = {unknown}, object[] arguments = {unknown}, System.Signature sig = {unknown}, System.Reflection.MethodAttributes methodAttributes = {unknown}, System.RuntimeType typeOwner = {unknown})  
    mscorlib.dll!System.Reflection.RuntimeMethodInfo.Invoke(object obj = {unknown}, System.Reflection.BindingFlags invokeAttr = {unknown}, System.Reflection.Binder binder = {unknown}, object[] parameters = {unknown}, System.Globalization.CultureInfo culture = {unknown}, bool skipVisibilityChecks = {unknown})   
    mscorlib.dll!System.Reflection.RuntimeMethodInfo.Invoke(object obj = {unknown}, System.Reflection.BindingFlags invokeAttr = {unknown}, System.Reflection.Binder binder = {unknown}, object[] parameters = {unknown}, System.Globalization.CultureInfo culture = {unknown})  
    mscorlib.dll!System.Reflection.MethodBase.Invoke(object obj = {unknown}, object[] parameters = {unknown})   
    System.dll!System.SecurityUtils.MethodInfoInvoke(System.Reflection.MethodInfo method = {unknown}, object target = {unknown}, object[] args = {unknown}) 
    System.dll!System.ComponentModel.ReflectPropertyDescriptor.SetValue(object component = {unknown}, object value = {unknown}) 
    System.Windows.Forms.dll!System.Windows.Forms.Binding.SetPropValue(object value = {unknown})    
    System.Windows.Forms.dll!System.Windows.Forms.Binding.PushData(bool force = {unknown})  
    System.Windows.Forms.dll!System.Windows.Forms.Binding.PushData()    
    System.Windows.Forms.dll!System.Windows.Forms.BindingManagerBase.PushData(out bool success = {unknown}) 
    System.Windows.Forms.dll!System.Windows.Forms.BindingManagerBase.PushData() 
    System.Windows.Forms.dll!System.Windows.Forms.PropertyManager.OnCurrentChanged(System.EventArgs ea = {unknown}) 
    System.Windows.Forms.dll!System.Windows.Forms.BindToObject.PropValueChanged(object sender = {unknown}, System.EventArgs e = {unknown})  
    System.dll!System.ComponentModel.PropertyDescriptor.OnValueChanged(object component = {unknown}, System.EventArgs e = {unknown})    
    System.dll!System.ComponentModel.ReflectPropertyDescriptor.OnValueChanged(object component = {unknown}, System.EventArgs e = {unknown}) 
    System.dll!System.ComponentModel.ReflectPropertyDescriptor.OnINotifyPropertyChanged(object component = {unknown}, System.ComponentModel.PropertyChangedEventArgs e = {unknown}) 
    WebKitBrowserTest.exe!Player.Project.BasicProject.NotifyPropertyChanged(string propertyName = "ExecutionState") 
    WebKitBrowserTest.exe!Player.Project.BasicProject.SetInternalExecutionState(InternalExecutionState value = Stopped) 
    WebKitBrowserTest.exe!Player.Project.BasicProject.execData_ExecutionCompleted(object sender = {Player.Actions.ExecutionData}, Player.Actions.ExecutionCompletedEventArgs e = {Player.Actions.ExecutionCompletedEventArgs})  
    WebKitBrowserTest.exe!Player.Actions.ExecutionData.OnExecutionCompleted(Player.Actions.ExecutionCompletedEventArgs e = {Player.Actions.ExecutionCompletedEventArgs})    
    WebKitBrowserTest.exe!Player.Actions.ExecutionData.ReportExecutionCompleted(Player.Actions.StopException exception = null)  
    WebKitBrowserTest.exe!Player.Actions.Executor.ProcessExecutionCompleted(Player.Actions.StopException exception = null)  
    WebKitBrowserTest.exe!Player.Actions.Executor.StartNextSegment()    
    WebKitBrowserTest.exe!Segment.Conclude()    
    WebKitBrowserTest.exe!<>c__DisplayClass5.AnonymousMethod()  
    WebKitBrowserTest.exe!Player.Actions.Waiter.OnCallbackFunction()    
    WebKitBrowserTest.exe!Player.Actions.Waiter.Complete()  
    WebKitBrowserTest.exe!Player.Actions.Waiter.AnonymousMethod()   
    mscorlib.dll!System.RuntimeMethodHandle.InvokeMethodFast(System.IRuntimeMethodInfo method = {unknown}, object target = {unknown}, object[] arguments = {unknown}, System.Signature sig = {unknown}, System.Reflection.MethodAttributes methodAttributes = {unknown}, System.RuntimeType typeOwner = {unknown})  
    mscorlib.dll!System.Reflection.RuntimeMethodInfo.Invoke(object obj = {unknown}, System.Reflection.BindingFlags invokeAttr = {unknown}, System.Reflection.Binder binder = {unknown}, object[] parameters = {unknown}, System.Globalization.CultureInfo culture = {unknown}, bool skipVisibilityChecks = {unknown})   
    mscorlib.dll!System.Delegate.DynamicInvokeImpl(object[] args = {unknown})   
    mscorlib.dll!System.Delegate.DynamicInvoke(object[] args = {unknown})   
    System.Windows.Forms.dll!System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme = {unknown})  
    System.Windows.Forms.dll!System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(object obj = {unknown}) 
    mscorlib.dll!System.Threading.ExecutionContext.runTryCode(object userData = {unknown})  
    mscorlib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext = {unknown}, System.Threading.ContextCallback callback = {unknown}, object state = {unknown}) 
    mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext = {unknown}, System.Threading.ContextCallback callback = {unknown}, object state = {unknown}, bool ignoreSyncCtx = {unknown}) 
    mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext = {unknown}, System.Threading.ContextCallback callback = {unknown}, object state = {unknown}) 
    System.Windows.Forms.dll!System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme = {unknown})    
    System.Windows.Forms.dll!System.Windows.Forms.Control.InvokeMarshaledCallbacks()    
    System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m = {unknown})   
    System.Windows.Forms.dll!System.Windows.Forms.ScrollableControl.WndProc(ref System.Windows.Forms.Message m = {unknown}) 
    System.Windows.Forms.dll!System.Windows.Forms.ContainerControl.WndProc(ref System.Windows.Forms.Message m = {unknown})  
    System.Windows.Forms.dll!System.Windows.Forms.Form.WndProc(ref System.Windows.Forms.Message m = {unknown})  
    System.Windows.Forms.dll!ControlNativeWindow.OnMessage(ref System.Windows.Forms.Message m = {unknown})  
    System.Windows.Forms.dll!ControlNativeWindow.WndProc(ref System.Windows.Forms.Message m = {unknown})    
    System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.DebuggableCallback(System.IntPtr hWnd = {unknown}, int msg = {unknown}, System.IntPtr wparam = {unknown}, System.IntPtr lparam = {unknown})  
    System.Windows.Forms.dll!ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(System.IntPtr dwComponentID = {unknown}, int reason = {unknown}, int pvLoopData = {unknown})   
    System.Windows.Forms.dll!ThreadContext.RunMessageLoopInner(int reason = {unknown}, System.Windows.Forms.ApplicationContext context = {unknown}) 
    System.Windows.Forms.dll!ThreadContext.RunMessageLoop(int reason = {unknown}, System.Windows.Forms.ApplicationContext context = {unknown})  
    System.Windows.Forms.dll!System.Windows.Forms.Application.Run(System.Windows.Forms.Form mainForm = {unknown})   
    WebKitBrowserTest.exe!WebScraperAndPlayer.Program.Main(string[] args = {string[0]}) 

>JSCore.dll！WebKit.JSCore.JSContext.EvaluateScript（字符串脚本={unknown}，对象thisObject={unknown}，字符串sourceUrl={unknown}，int startingLineNumber={unknown}）
JSCore.dll！WebKit.JSCore.JSContext.EvaluateScript（字符串脚本={unknown}）
WebKitBrowserTest.exe！Player.webkitwrap.JSObjectWrap.GetExpando（）
WebKitBrowserTest.exe！获取Player.webkitwrap.JSObjectWrap.Expando（）
WebKitBrowserTest.exe！Player.webkitwrap.JSObjectWrap.Equals（Player.webkitwrap.JSObjectWrap-other={Player.webkitwrap.ElementWrap}）
WebKitBrowserTest.exe！Player.webkitwrap.JSObjectWrap.op_相等（Player.webkitwrap.JSObjectWrap a={Player.webkitwrap.ElementWrap}，Player.webkitwrap.JSObjectWrap b={Player.webkitwrap.ElementWrap}）
WebKitBrowserTest.exe！Player.webkitwrap.JSObjectWrap.op_不等式（Player.webkitwrap.JSObjectWrap a={Player.webkitwrap.ElementWrap}，Player.webkitwrap.JSObjectWrap b={Player.webkitwrap.ElementWrap}）
WebKitBrowserTest.exe！WebScraperAndLayer.SelectionEditor.SelectPrevSibling（WebScraperAndLayer.BrowserSelector={WebScraperAndLayer.BrowserSelector}）
WebKitBrowserTest.exe！WebScraperAndLayer.SelectionEditor.WillSelectAny（System.Action selectFunction={System.Action}）
WebKitBrowserTest.exe！WebScraperAndLayer.SelectionEditor.UpdateAbilities（）
WebKitBrowserTest.exe！WebScraperAndPlayer.SelectionEditor.SetExecutionState（Player.Actions.ExecutionState值=已停止）
WebKitBrowserTest.exe！设置WebScraperAndLayer.SelectionEditor.ExecutionState（Player.Actions.ExecutionState值=已停止）
mscorlib.dll！System.RuntimeMethodHandle.InvokeMethodFast（System.IRuntimeMethodInfo方法={unknown}，对象目标={unknown}，对象[]参数={unknown}，System.Signature sig={unknown}，System.Reflection.MethodAttributes方法属性={unknown}，System.RuntimeType typeOwner={unknown}）
mscorlib.dll！System.Reflection.RuntimeMethodInfo.Invoke（对象obj={unknown}，System.Reflection.BindingFlags invokeAttr={unknown}，System.Reflection.Binder Binder={unknown}，对象[]参数={unknown}，System.Globalization.CultureInfo文化={unknown}，布尔skipVisibilityChecks={unknown}）
mscorlib.dll！System.Reflection.RuntimeMethodInfo.Invoke（对象obj={unknown}，System.Reflection.BindingFlags invokeAttr={unknown}，System.Reflection.Binder Binder={unknown}，对象[]参数={unknown}，System.Globalization.CultureInfo文化={unknown}）
mscorlib.dll！System.Reflection.MethodBase.Invoke（对象obj={unknown}，对象[]参数={unknown}）
System.dll！System.SecurityUtils.MethodInfoInvoke（System.Reflection.MethodInfo方法={unknown}，对象目标={unknown}，对象[]args={unknown}）
System.dll！System.ComponentModel.ReflectPropertyDescriptor.SetValue（对象组件={unknown}，对象值={unknown}）
System.Windows.Forms.dll！System.Windows.Forms.Binding.SetPropValue（对象值={unknown}）
System.Windows.Forms.dll！System.Windows.Forms.Binding.PushData（bool force={unknown}）
System.Windows.Forms.dll！System.Windows.Forms.Binding.PushData（）
System.Windows.Forms.dll！System.Windows.Forms.BindingManagerBase.PushData（out bool success={unknown}）
System.Windows.Forms.dll！System.Windows.Forms.BindingManagerBase.PushData（）
System.Windows.Forms.dll！System.Windows.Forms.PropertyManager.OnCurrentChanged（System.EventArgs ea={unknown}）
System.Windows.Forms.dll！System.Windows.Forms.BindToObject.PropValueChanged（对象发送方={unknown}，System.EventArgs e={unknown}）
System.dll！System.ComponentModel.PropertyDescriptor.OnValueChanged（对象组件={unknown}，System.EventArgs e={unknown}）
System.dll！System.ComponentModel.ReflectPropertyDescriptor.OnValueChanged（对象组件={unknown}，System.EventArgs e={unknown}）
System.dll！System.ComponentModel.ReflectPropertyDescriptor.OnNotifyProperty