private static void OneTimeSetup()
{
Type stackFrameHelperType =
typeof(object).Assembly.GetType("System.Diagnostics.StackFrameHelper");
MethodInfo getStackFramesInternal =
Type.GetType("System.Diagnostics.StackTrace, mscorlib").GetMethod(
"GetStackFramesInternal", BindingFlags.Static | BindingFlags.NonPublic);
DynamicMethod dynamicMethod = new DynamicMethod(
"GetStackFrameHelper", typeof(object), new Type[0], typeof(StackTrace), true);
ILGenerator generator = dynamicMethod.GetILGenerator();
generator.DeclareLocal(stackFrameHelperType);
generator.Emit(OpCodes.Ldc_I4_0);
generator.Emit(OpCodes.Ldnull);
generator.Emit(OpCodes.Newobj,
stackFrameHelperType.GetConstructor(new Type[] { typeof(bool), typeof(Thread) }));
generator.Emit(OpCodes.Stloc_0);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ldc_I4_0);
generator.Emit(OpCodes.Ldnull);
generator.Emit(OpCodes.Call, getStackFramesInternal);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ret);
_getStackFrameHelper =
(DGetStackFrameHelper)dynamicMethod.CreateDelegate(typeof(DGetStackFrameHelper));
_frameCount = stackFrameHelperType.GetField(
"iFrameCount", BindingFlags.NonPublic | BindingFlags.Instance);
}
private static void OneTimeSetup()
{
try
{
Type stackFrameHelperType =
typeof(object).Assembly.GetType("System.Diagnostics.StackFrameHelper");
// ReSharper disable once PossibleNullReferenceException
MethodInfo getStackFramesInternal =
Type.GetType("System.Diagnostics.StackTrace, mscorlib").GetMethod(
"GetStackFramesInternal", BindingFlags.Static | BindingFlags.NonPublic);
if (getStackFramesInternal == null)
{
return; // Unknown mscorlib implementation
}
DynamicMethod dynamicMethod = new DynamicMethod(
"GetStackFrameHelper", typeof(object), new Type[0], typeof(StackTrace), true);
ILGenerator generator = dynamicMethod.GetILGenerator();
generator.DeclareLocal(stackFrameHelperType);
bool newDotNet = false;
ConstructorInfo constructorInfo =
stackFrameHelperType.GetConstructor(new Type[] { typeof(bool), typeof(Thread) });
if (constructorInfo != null)
{
generator.Emit(OpCodes.Ldc_I4_0);
}
else
{
constructorInfo = stackFrameHelperType.GetConstructor(new Type[] { typeof(Thread) });
if (constructorInfo == null)
{
return; // Unknown mscorlib implementation
}
newDotNet = true;
}
generator.Emit(OpCodes.Ldnull);
generator.Emit(OpCodes.Newobj, constructorInfo);
generator.Emit(OpCodes.Stloc_0);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ldc_I4_0);
if (newDotNet)
{
generator.Emit(OpCodes.Ldc_I4_0); // Extra parameter
}
generator.Emit(OpCodes.Ldnull);
generator.Emit(OpCodes.Call, getStackFramesInternal);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ret);
_getStackFrameHelper =
(DGetStackFrameHelper)dynamicMethod.CreateDelegate(typeof(DGetStackFrameHelper));
_frameCount = stackFrameHelperType.GetField("iFrameCount",
BindingFlags.NonPublic | BindingFlags.Instance);
}
catch
{} // _frameCount remains null, indicating unknown mscorlib implementation
}
