public static IList <KnownAttributes <TInfo> > LookupAttributes <TInfo>(
object target,
Dictionary <Type, IList <KnownAttributes <TInfo> > > known,
InvocationHelper helper) where TInfo : MemberInfo
{
Contract.Requires(target != null);
Contract.Requires(known != null);
Contract.Requires(helper != null);
IList <KnownAttributes <TInfo> > result;
var type = target.GetType();
lock (known)
{
if (!known.TryGetValue(type, out result))
{
var infos = helper();
Contract.Assume(infos != null); // ensures infos is not null
result = new List <KnownAttributes <TInfo> >();
foreach (TInfo info in infos) // possibly unboxing a null reference
{
if (info != null)
{
var temp = new KnownAttributes <TInfo>(info); // Flagged as related
}
}
known[type] = result;
}
}
return(result);
}
public FieldWrapper(Type ownerType, FieldInfo info, NanoLocation location, NanoState state, int constructorArg, string name) :
base(ownerType, info, info.FieldType, location, state, constructorArg, name)
{
Info = info;
readFunc = InvocationHelper.CreateGetFieldDelegate(ownerType, info);
writeFunc = InvocationHelper.CreateSetFieldDelegate(ownerType, info);
}
private Func <object[], object> UpdateConstructors(int maxArgIndex, out int argsCount, out string[] globalArgNames)
{
MemberWrapper[] args = null;
if (maxArgIndex > -1)
{
args = new MemberWrapper[maxArgIndex + 1];
foreach (PropertyWrapper wrapper in Properties)
{
if (wrapper.ConstructorArg != -1)
{
args[wrapper.ConstructorArg] = wrapper;
}
}
foreach (FieldWrapper wrapper in Fields)
{
if (wrapper.ConstructorArg != -1)
{
args[wrapper.ConstructorArg] = wrapper;
}
}
}
globalArgNames = null;
ConstructorInfo bestCtor = null;
float bestCtorScore = -1;
ParameterInfo[] bestCtorParameterInfos = null;
foreach (ConstructorInfo info in Type.GetConstructors(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
ParameterInfo[] parameterInfos = null;
string[] names = null;
float score = TestConstructor(info, args, ref names, ref parameterInfos);
if (score > bestCtorScore)
{
bestCtorScore = score;
bestCtor = info;
bestCtorParameterInfos = parameterInfos;
globalArgNames = names;
}
}
if (bestCtor == null)
{
if (Type.IsValueType)
{
argsCount = 0;
return(InvocationHelper.CreateConstructorDelegate(Type, null, null));
}
throw new SerializationException($"Unable to get best constructor for {Type.FullName}");
}
argsCount = bestCtorParameterInfos.Length;
return(InvocationHelper.CreateConstructorDelegate(Type, bestCtor, bestCtorParameterInfos));
}
public static T GetCustomAttributes <T>(Type type, MethodInfo methodInfo) where T : Attribute
{
var method = InvocationHelper.GetMethodOnType(type, methodInfo);
if (method != null)
{
return(method.GetAttribute <T>());
}
return(null);
}
public static object CreateParameterless(Type type)
{
Func <object> func;
if (!typeConstructors.TryGetValue(type, out func))
{
func = InvocationHelper.CreateConstructorDelegate(type);
typeConstructors.Add(type, func);
}
return(func());
}
public PropertyWrapper(Type ownerType, PropertyInfo info, NanoLocation location, NanoState state, int constructorArg, string name)
: base(ownerType, info, info.PropertyType, location, state, constructorArg, name)
{
Info = info;
if (info.CanWrite)
{
writeAction = InvocationHelper.CreateSetDelegate(ownerType, info.PropertyType, info.SetMethod);
}
readFunc = InvocationHelper.CreateGetDelegate(ownerType, info.PropertyType, info.GetMethod);
CanWrite = info.CanWrite;
CanRead = info.CanRead;
IsPrivate = (!info.CanRead || info.GetMethod.IsPrivate) &&
(!info.CanWrite || info.SetMethod.IsPrivate);
}
public void Intercept(IInvocation invocation)
{
if (this.IsTransactional(invocation))
{
this.loggingHelper.LogTransactionMethodBegin(invocation);
bool iAmTheFirst = default(bool);
try
{
iAmTheFirst = this.BeginTransactionIfNeeded();
invocation.Proceed();
this.TryCommit(iAmTheFirst, invocation);
}
catch (Exception ex)
{
this.logger.Error(ex, "Exception in method: {0}", invocation.Method.GetFullMethodName());
this.RollbackTransaction(iAmTheFirst, invocation);
if (InvocationHelper.IsKnownCrudOperation(invocation))
{
invocation.ReturnValue = InvocationHelper.BuildReturnValueForError(invocation, ex);
}
else
{
throw;
}
}
finally
{
this.session.Close();
}
}
else
{
this.loggingHelper.LogTransactionMethodIgnored(invocation);
invocation.Proceed();
}
}
protected override async Task OnMessageActivityAsync(ITurnContext <IMessageActivity> turnContext, CancellationToken cancellationToken)
{
// This first if statement is a temporary hack to work around the fact that GroupMe doesn't correctly route add/join messages through OnMembersAddedAsync.
// Once https://github.com/microsoft/BotFramework-Services/issues/97 is resolved, welcome messages need only be handled by OnMembersAddedAsync
foreach (var member in turnContext.Activity.NewMembers())
{
await WelcomeHelper.SendWelcomeMessage(member, turnContext, cancellationToken);
}
foreach (var member in turnContext.Activity.ReturningMembers())
{
await WelcomeHelper.SendWelcomeBackMessage(member, turnContext, cancellationToken);
}
if (turnContext.Activity.Text.StartsWith("!", StringComparison.Ordinal))
{
await InvocationHelper.HandleInvocationActivity(turnContext, cancellationToken);
}
if (turnContext.Activity.Polls().Any())
{
await turnContext.SendActivitiesAsync(new[] {
MessageFactory.Text(Constants.VoteAndLikeReminder),
MessageFactory.Text(Constants.MaskReminder)
}, cancellationToken);
}
}
protected override void OnExit(IInvocation invocation)
{
InvocationHelper.SetReturnValue(invocation, RETURN_VALUE_SET_BY_ASPECT);
}
public static void TestPerformance()
{
Test test = new Test();
PropertyInfo info = typeof(Test).GetProperty("A");
const string TEST = "1";
info.SetValue(test, TEST);
Action <object, object> action = InvocationHelper.CreateSetDelegate(typeof(Test), typeof(string), info.SetMethod);
MethodInfo method = info.SetMethod;
action(test, TEST);
Action <object, object> actionUntyped = SetUntyped;
Action <Test, string> actionTyped = SetUntyped;
Action <Test, string> actionLambdaTyped = (target, arg) => target.A = arg;
Action <object, object> actionLambdaUntyped = (target, arg) => ((Test)target).A = (string)arg;
Action <Test, string> actionDelegate = (Action <Test, string>)Delegate.CreateDelegate(typeof(Action <Test, string>), method);
Func <object> actionCreateLambda = CreateConstructorDelegate(typeof(Test));
Func <object> actionCreateEmit = InvocationHelper.CreateConstructorDelegate(typeof(Test));
ConstructorInfo ctor = typeof(Test).GetConstructor(Type.EmptyTypes);
ConstructorInfo ctorString = typeof(Test).GetConstructor(new Type[] { typeof(string) });
Func <object[], object> actionCreateEmitString = InvocationHelper.CreateConstructorDelegate(typeof(Test), ctorString, ctorString.GetParameters());
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine("Performance test: Property set...");
Console.ForegroundColor = ConsoleColor.Gray;
WriteTestStart("PropertyInfo.SetValue");
Stopwatch stopwatch = Stopwatch.StartNew();
for (int i = 0; i < ITERATIONS; i++)
{
info.SetValue(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("MethodInfo.Invoke");
stopwatch.Restart();
object[] cache = { TEST };
for (int i = 0; i < ITERATIONS; i++)
{
method.Invoke(test, cache);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("InvocationHelper.CreateSetDelegate");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
action(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("test.A = TEST");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
test.A = TEST;
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("SetTyped(Test test, string s)");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
SetTyped(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("SetUntyped(object test, object s)");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
SetUntyped(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("Action<Test, string>");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionTyped(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("Action<object, object>");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionUntyped(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("=> target.A = arg");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionLambdaTyped(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("=> ((Test)target).A = (string)arg");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionLambdaUntyped(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("Delegate.CreateDelegate");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionDelegate(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("Delegate.DynamicInvoke");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
action.DynamicInvoke(test, TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine();
Console.WriteLine("Performance test: Object creation...");
Console.ForegroundColor = ConsoleColor.Gray;
WriteTestStart("Activator.Create");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
Activator.CreateInstance(typeof(Test));
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("CreateConstructorDelegate");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionCreateEmit();
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("() => new TResult()");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionCreateLambda();
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("ConstructorInfo.Invoke");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
ctor.Invoke(null);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("new Test()");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
// ReSharper disable once ObjectCreationAsStatement
new Test();
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("Activator.Create (string)");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
Activator.CreateInstance(typeof(Test), cache);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("CreateConstructorDelegate(string)");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
actionCreateEmitString(cache);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("ConstructorInfo.Invoke(string)");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
ctorString.Invoke(cache);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
WriteTestStart("new Test(string)");
stopwatch.Restart();
for (int i = 0; i < ITERATIONS; i++)
{
// ReSharper disable once ObjectCreationAsStatement
new Test(TEST);
}
stopwatch.Stop();
WriteTestFinish(stopwatch);
Console.WriteLine("-- All done. Press <Enter> to continue.");
Console.WriteLine();
}