static DynamicMethod GenerateDynamicDeserializerStub(Type type) {
var dm = new DynamicMethod("Deserialize", null,
new Type[] { typeof(Stream), type.MakeByRefType() },
typeof(Serializer), true);
dm.DefineParameter(1, ParameterAttributes.None, "stream");
dm.DefineParameter(2, ParameterAttributes.Out, "value");
return dm;
}
private static void CreateDynamicAssembly()
{
new SecurityPermission(SecurityPermissionFlag.ControlEvidence).Assert();
Type[] types = new Type[] { typeof(Type), typeof(Type), typeof(string) };
MethodInfo methodInfo = typeof(Delegate).GetMethod("CreateDelegate", types);
DynamicMethod method = new DynamicMethod("CreateDelegate", typeof(Delegate), types);
method.DefineParameter(1, ParameterAttributes.In, "delegateType");
method.DefineParameter(2, ParameterAttributes.In, "targetType");
method.DefineParameter(3, ParameterAttributes.In, "methodName");
ILGenerator iLGenerator = method.GetILGenerator(5);
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldarg_1);
iLGenerator.Emit(OpCodes.Ldarg_2);
iLGenerator.EmitCall(OpCodes.Call, methodInfo, null);
iLGenerator.Emit(OpCodes.Ret);
s_CreateDelegate1 = (CreateDelegate1Delegate) method.CreateDelegate(typeof(CreateDelegate1Delegate));
types = new Type[] { typeof(Type), typeof(object), typeof(string) };
methodInfo = typeof(Delegate).GetMethod("CreateDelegate", types);
method = new DynamicMethod("CreateDelegate", typeof(Delegate), types);
method.DefineParameter(1, ParameterAttributes.In, "delegateType");
method.DefineParameter(2, ParameterAttributes.In, "target");
method.DefineParameter(3, ParameterAttributes.In, "methodName");
iLGenerator = method.GetILGenerator(5);
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldarg_1);
iLGenerator.Emit(OpCodes.Ldarg_2);
iLGenerator.EmitCall(OpCodes.Call, methodInfo, null);
iLGenerator.Emit(OpCodes.Ret);
s_CreateDelegate2 = (CreateDelegate2Delegate) method.CreateDelegate(typeof(CreateDelegate2Delegate));
types = new Type[] { typeof(Type), typeof(object[]) };
methodInfo = typeof(Activator).GetMethod("CreateInstance", types);
method = new DynamicMethod("CreateInstance", typeof(object), types);
method.DefineParameter(1, ParameterAttributes.In, "type");
method.DefineParameter(2, ParameterAttributes.In, "arguments");
iLGenerator = method.GetILGenerator(4);
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldarg_1);
iLGenerator.EmitCall(OpCodes.Call, methodInfo, null);
iLGenerator.Emit(OpCodes.Ret);
s_CreateInstance = (CreateInstanceDelegate) method.CreateDelegate(typeof(CreateInstanceDelegate));
types = new Type[] { typeof(object), typeof(object[]) };
Type[] parameterTypes = new Type[] { typeof(MethodInfo), typeof(object), typeof(object[]) };
methodInfo = typeof(MethodInfo).GetMethod("Invoke", types);
method = new DynamicMethod("InvokeMethod", typeof(object), parameterTypes);
method.DefineParameter(1, ParameterAttributes.In, "method");
method.DefineParameter(2, ParameterAttributes.In, "instance");
method.DefineParameter(3, ParameterAttributes.In, "args");
iLGenerator = method.GetILGenerator(5);
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldarg_1);
iLGenerator.Emit(OpCodes.Ldarg_2);
iLGenerator.EmitCall(OpCodes.Callvirt, methodInfo, null);
iLGenerator.Emit(OpCodes.Ret);
s_InvokeMethod = (InvokeMethodDelegate) method.CreateDelegate(typeof(InvokeMethodDelegate));
}
public static DynamicMethod GenerateDynamicSerializerStub(Type type)
{
var dm = new DynamicMethod("Serialize", null,
new Type[] { typeof(IoBuffer), type },
typeof(Serializer), true);
dm.DefineParameter(1, ParameterAttributes.None, "stream");
dm.DefineParameter(2, ParameterAttributes.None, "value");
return dm;
}
public static DynamicMethod GenerateDynamicDeserializeInvokerStub()
{
var dm = new DynamicMethod(string.Empty, null,
new Type[] { typeof(Stream), typeof(object).MakeByRefType(), typeof(ObjectList) },
typeof(Serializer), true);
dm.DefineParameter(1, ParameterAttributes.None, "stream");
dm.DefineParameter(2, ParameterAttributes.Out, "value");
dm.DefineParameter(3, ParameterAttributes.None, "objList");
return dm;
}
private Delegate CreateCompatibleListener(EventInfo eventInfo)
{
string methodName = eventInfo.Name + "_handler_";
var delegateType = eventInfo.EventHandlerType;
var invokeMethod = delegateType.GetMethod("Invoke");
if (invokeMethod.ReturnType != typeof(void))
throw new NotSupportedException();
var delegateParameters = invokeMethod.GetParameters();
var args = new List<Type> {typeof (EventListener)};
args.AddRange(delegateParameters.Select(p=>p.ParameterType));
var dm = new DynamicMethod(methodName,
typeof (void),
args.ToArray(),
typeof(EventListener));
var generator = dm.GetILGenerator(256);
generator.DeclareLocal(typeof (Dictionary<string, object>));
generator.Emit(OpCodes.Newobj, _dictionaryCto);
generator.Emit(OpCodes.Stloc_0);
var savedArgsField = GetType().GetField("_savedArgs", BindingFlags.Instance | BindingFlags.NonPublic);
Debug.Assert(savedArgsField != null);
// add the arguments received to the dictionary
for (var idx = 0; idx < delegateParameters.Length; idx++)
{
var parameter = delegateParameters[idx];
dm.DefineParameter(idx + 2, ParameterAttributes.In, parameter.Name);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ldstr, parameter.Name);
generator.Emit(OpCodes.Ldarg, idx + 1);
if (parameter.ParameterType.IsValueType)
{
generator.Emit(OpCodes.Box, parameter.ParameterType);
}
generator.Emit(OpCodes.Callvirt, _dictionarySetItemMethod);
}
// add the dictionary to the list
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldfld, savedArgsField);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Callvirt, _listAddMethod);
generator.Emit(OpCodes.Ret);
return dm.CreateDelegate(delegateType, this);
}
/// <summary>
/// Creates an ITile instance using the defaul Terraria.Tile constructor.
///
/// This cannot be performed at compile time using the OTAPI solution as
/// Terraria.Tile does not implement ITile at compile time.
/// </summary>
/// <returns>ITile instance</returns>
private static Func<OTAPI.Tile.ITile, OTAPI.Tile.ITile> GetNewTileFromMethod()
{
var dm = new DynamicMethod("GetTileFromCollection", typeof(OTAPI.Tile.ITile), new[]
{
typeof(OTAPI.Tile.ITile)
});
dm.DefineParameter(0, System.Reflection.ParameterAttributes.In, "copy");
var processor = dm.GetILGenerator();
processor.Emit(OpCodes.Ldarg_0);
processor.Emit(OpCodes.Newobj, typeof(global::Terraria.Tile).GetConstructors().Single(x => x.GetParameters().Length == 1));
processor.Emit(OpCodes.Ret);
return (Func<OTAPI.Tile.ITile, OTAPI.Tile.ITile>)dm.CreateDelegate(typeof(Func<OTAPI.Tile.ITile, OTAPI.Tile.ITile>));
}
/// <summary>
/// Wrap the parsed the function into a delegate of the specified type. The delegate must accept
/// the parameters defined in the parameters collection. The order of parameters is respected as defined
/// in parameters collection.
/// <br/>
/// The function must accept a dictionary of strings and doubles as input. The values passed to the
/// wrapping function will be passed to the function using the dictionary. The keys in the dictionary
/// are the names of the parameters of the wrapping function.
/// </summary>
/// <param name="parameters">The required parameters of the wrapping function delegate.</param>
/// <param name="function">The function that must be wrapped.</param>
/// <returns>A delegate instance of the required type.</returns>
public Delegate Wrap(IEnumerable<Jace.Execution.ParameterInfo> parameters,
Func<Dictionary<string, double>, double> function)
{
Jace.Execution.ParameterInfo[] parameterArray = parameters.ToArray();
Type[] parameterTypes = GetParameterTypes(parameterArray);
Type delegateType = GetDelegateType(parameterArray);
DynamicMethod method = new DynamicMethod("FuncWrapperMethod", typeof(double),
parameterTypes, typeof(FuncAdapterArguments));
ILGenerator generator = method.GetILGenerator();
GenerateMethodBody(generator, parameterArray, function);
for (int i = 0; i < parameterArray.Length; i++)
{
Jace.Execution.ParameterInfo parameter = parameterArray[i];
method.DefineParameter((i + 1), ParameterAttributes.In, parameter.Name);
}
return method.CreateDelegate(delegateType, new FuncAdapterArguments(function));
}
static void DynamicCreateMethod()
{
// Create an array that specifies the types of the parameters
// of the dynamic method. This dynamic method has a String
// parameter and an Integer parameter.
Type[] helloArgs = { typeof(string), typeof(int) };
// Create a dynamic method with the name "Hello", a return type
// of Integer, and two parameters whose types are specified by
// the array helloArgs. Create the method in the module that
// defines the String class.
DynamicMethod hello = new DynamicMethod("Hello",
typeof(int),
helloArgs,
typeof(string).Module);
// Create an array that specifies the parameter types of the
// overload of Console.WriteLine to be used in Hello.
Type[] writeStringArgs = { typeof(string) };
// Get the overload of Console.WriteLine that has one String parameter.
MethodInfo writeString = typeof(Console).GetMethod("WriteLine", writeStringArgs);
// Get an ILGenerator and emit a body for the dynamic method,
// using a stream size larger than the IL that will be emitted.
ILGenerator il = hello.GetILGenerator(256);
// Load the first argument, which is a string, onto the stack.
il.Emit(OpCodes.Ldarg_0);
// Call the overload of Console.WriteLine that prints a string.
il.EmitCall(OpCodes.Call, writeString, null);
// The Hello method returns the value of the second argument;
// to do this, load the onto the stack and return.
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ret);
// Display MethodAttributes for the dynamic method, set when
// the dynamic method was created.
Console.WriteLine("\r\nMethod Attributes: {0}", hello.Attributes);
// Display the calling convention of the dynamic method, set when the dynamic method was created.
Console.WriteLine("\r\nCalling convention: {0}", hello.CallingConvention);
// Display the declaring type, which is always null for dynamic methods.
if (hello.DeclaringType == null)
Console.WriteLine("\r\nDeclaringType is always null for dynamic methods.");
else
Console.WriteLine("DeclaringType: {0}", hello.DeclaringType);
// Display the default value for InitLocals.
if (hello.InitLocals)
Console.Write("\r\nThis method contains verifiable code.");
else
Console.Write("\r\nThis method contains unverifiable code.");
Console.WriteLine(" (InitLocals = {0})", hello.InitLocals);
// Display the module specified when the dynamic method was created.
Console.WriteLine("\r\nModule: {0}", hello.Module);
// Display the name specified when the dynamic method was created.
// Note that the name can be blank.
Console.WriteLine("\r\nName: {0}", hello.Name);
// For dynamic methods, the reflected type is always null.
if (hello.ReflectedType == null)
Console.WriteLine("\r\nReflectedType is null.");
else
Console.WriteLine("\r\nReflectedType: {0}", hello.ReflectedType);
if (hello.ReturnParameter == null)
Console.WriteLine("\r\nMethod has no return parameter.");
else
Console.WriteLine("\r\nReturn parameter: {0}", hello.ReturnParameter);
// If the method has no return type, ReturnType is System.Void.
Console.WriteLine("\r\nReturn type: {0}", hello.ReturnType);
// ReturnTypeCustomAttributes returns an ICustomeAttributeProvider
// that can be used to enumerate the custom attributes of the
// return value. At present, there is no way to set such custom
// attributes, so the list is empty.
if (hello.ReturnType == typeof(void))
Console.WriteLine("The method has no return type.");
else
{
ICustomAttributeProvider caProvider = hello.ReturnTypeCustomAttributes;
object[] returnAttributes = caProvider.GetCustomAttributes(true);
if (returnAttributes.Length == 0)
Console.WriteLine("\r\nThe return type has no custom attributes.");
else
{
Console.WriteLine("\r\nThe return type has the following custom attributes:");
foreach (object attr in returnAttributes)
{
Console.WriteLine("\t{0}", attr.ToString());
}
}
}
Console.WriteLine("\r\nToString: {0}", hello.ToString());
// Add parameter information to the dynamic method. (This is not
// necessary, but can be useful for debugging.) For each parameter,
// identified by position, supply the parameter attributes and a
// parameter name.
ParameterBuilder parameter1 = hello.DefineParameter(1,ParameterAttributes.In,"message");
ParameterBuilder parameter2 = hello.DefineParameter(2,ParameterAttributes.In,"valueToReturn");
// Display parameter information.
ParameterInfo[] parameters = hello.GetParameters();
Console.WriteLine("\r\nParameters: name, type, ParameterAttributes");
foreach (ParameterInfo p in parameters)
{
Console.WriteLine("\t{0}, {1}, {2}",
p.Name, p.ParameterType, p.Attributes);
}
// Create a delegate that represents the dynamic method.
//This action completes the method, and any further attempts to change the method will cause an exception.
HelloDelegate hi = (HelloDelegate)hello.CreateDelegate(typeof(HelloDelegate));
// Use the delegate to execute the dynamic method.
Console.WriteLine("\r\nUse the delegate to execute the dynamic method:");
int retval = hi("\r\nHello, World!", 42);
Console.WriteLine("Invoking delegate hi(\"Hello, World!\", 42) returned: " + retval);
// Execute it again, with different arguments.
retval = hi("\r\nHi, Mom!", 5280);
Console.WriteLine("Invoking delegate hi(\"Hi, Mom!\", 5280) returned: " + retval);
Console.WriteLine("\r\nUse the Invoke method to execute the dynamic method:");
// Create an array of arguments to use with the Invoke method.
object[] invokeArgs = { "\r\nHello, World!", 42 };
// Invoke the dynamic method using the arguments. This is much
// slower than using the delegate, because you must create an
// array to contain the arguments, and value-type arguments
// must be boxed.
object objRet = hello.Invoke(null, BindingFlags.ExactBinding, null, invokeArgs, new System.Globalization.CultureInfo("en-us"));
Console.WriteLine("hello.Invoke returned: " + objRet);
}
private static CommandInvocationDelegate CreateInvokeDelegate(MethodInfo targetMethod)
{
var method = new DynamicMethod("CommandCache.Invoke", typeof(void), new [] { typeof(object), typeof(object) }, true);
method.DefineParameter(1, ParameterAttributes.None, "target");
method.DefineParameter(2, ParameterAttributes.None, "sender");
var ilGenerator = method.GetILGenerator();
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Isinst, targetMethod.DeclaringType);
ilGenerator.Emit(OpCodes.Ldarg_1);
ilGenerator.Emit(OpCodes.Tailcall);
ilGenerator.Emit(OpCodes.Callvirt, targetMethod); // callvirt will check for null references
ilGenerator.Emit(OpCodes.Ret);
return method.CreateDelegate(typeof(CommandInvocationDelegate)) as CommandInvocationDelegate;
}
static Dictionary<Type, TypeData> GenerateDynamic(Type[] types, Dictionary<Type, TypeData> typeMap)
{
Dictionary<Type, TypeData> _map = GenerateTypeData(types);
Dictionary<Type, TypeData> map = typeMap.Concat(_map).ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
var nonStaticTypes = map.Where(kvp => kvp.Value.IsDynamic).Select(kvp => kvp.Key);
/* generate stubs */
foreach (var type in nonStaticTypes)
{
var s_dm = SerializerCodegen.GenerateDynamicSerializerStub(type);
var typeData = map[type];
typeData.WriterMethodInfo = s_dm;
typeData.WriterILGen = s_dm.GetILGenerator();
var d_dm = DeserializerCodegen.GenerateDynamicDeserializerStub(type);
typeData.ReaderMethodInfo = d_dm;
typeData.ReaderILGen = d_dm.GetILGenerator();
}
#if GENERATE_SWITCH
var serializerSwitchMethod = new DynamicMethod("SerializerSwitch", null,
new Type[] { typeof(Stream), typeof(object), typeof(ObjectList) },
typeof(Serializer), true);
serializerSwitchMethod.DefineParameter(1, ParameterAttributes.None, "stream");
serializerSwitchMethod.DefineParameter(2, ParameterAttributes.None, "value");
serializerSwitchMethod.DefineParameter(3, ParameterAttributes.None, "objList");
var serializerSwitchMethodInfo = serializerSwitchMethod;
var deserializerSwitchMethod = new DynamicMethod("DeserializerSwitch", null,
new Type[] { typeof(Stream), typeof(object).MakeByRefType(), typeof(ObjectList) },
typeof(Serializer), true);
deserializerSwitchMethod.DefineParameter(1, ParameterAttributes.None, "stream");
deserializerSwitchMethod.DefineParameter(2, ParameterAttributes.Out, "value");
deserializerSwitchMethod.DefineParameter(3, ParameterAttributes.Out, "objList");
var deserializerSwitchMethodInfo = deserializerSwitchMethod;
var ctx = new CodeGenContext(map, serializerSwitchMethodInfo, deserializerSwitchMethodInfo);
#else
var ctx = new CodeGenContext(map);
#endif
/* generate bodies */
foreach (var type in nonStaticTypes)
{
SerializerCodegen.GenerateSerializerBody(ctx, type, map[type].WriterILGen);
DeserializerCodegen.GenerateDeserializerBody(ctx, type, map[type].ReaderILGen);
}
#if GENERATE_SWITCH
var ilGen = serializerSwitchMethod.GetILGenerator();
SerializerCodegen.GenerateSerializerSwitch(ctx, ilGen, map);
s_serializerSwitch = (SerializerSwitch)serializerSwitchMethod.CreateDelegate(typeof(SerializerSwitch));
ilGen = deserializerSwitchMethod.GetILGenerator();
DeserializerCodegen.GenerateDeserializerSwitch(ctx, ilGen, map);
s_deserializerSwitch = (DeserializerSwitch)deserializerSwitchMethod.CreateDelegate(typeof(DeserializerSwitch));
#else
foreach (var kvp in map)
{
kvp.Value.serializer = GetSerializationInvoker(null, kvp.Value.WriterMethodInfo, kvp.Key, (int)kvp.Value.TypeID);
kvp.Value.deserializer = GetDeserializationInvoker(null, kvp.Value.ReaderMethodInfo, kvp.Key, (int)kvp.Value.TypeID);
}
#endif
return map;
}
static void GenerateDynamic(Dictionary<Type, TypeData> map)
{
/* generate stubs */
foreach (var kvp in map)
{
var type = kvp.Key;
var td = kvp.Value;
if (!td.IsGenerated)
continue;
var writerDm = SerializerCodegen.GenerateDynamicSerializerStub(type);
td.WriterMethodInfo = writerDm;
td.WriterILGen = writerDm.GetILGenerator();
var readerDm = DeserializerCodegen.GenerateDynamicDeserializerStub(type);
td.ReaderMethodInfo = readerDm;
td.ReaderILGen = readerDm.GetILGenerator();
}
var serializerSwitchMethod = new DynamicMethod("SerializerSwitch", null,
new Type[] { typeof(Stream), typeof(object) },
typeof(Serializer), true);
serializerSwitchMethod.DefineParameter(1, ParameterAttributes.None, "stream");
serializerSwitchMethod.DefineParameter(2, ParameterAttributes.None, "value");
var serializerSwitchMethodInfo = serializerSwitchMethod;
var deserializerSwitchMethod = new DynamicMethod("DeserializerSwitch", null,
new Type[] { typeof(Stream), typeof(object).MakeByRefType() },
typeof(Serializer), true);
deserializerSwitchMethod.DefineParameter(1, ParameterAttributes.None, "stream");
deserializerSwitchMethod.DefineParameter(2, ParameterAttributes.Out, "value");
var deserializerSwitchMethodInfo = deserializerSwitchMethod;
var ctx = new CodeGenContext(map, serializerSwitchMethodInfo, deserializerSwitchMethodInfo);
/* generate bodies */
foreach (var kvp in map)
{
var type = kvp.Key;
var td = kvp.Value;
if (!td.IsGenerated)
continue;
td.TypeSerializer.GenerateWriterMethod(type, ctx, td.WriterILGen);
td.TypeSerializer.GenerateReaderMethod(type, ctx, td.ReaderILGen);
}
var ilGen = serializerSwitchMethod.GetILGenerator();
SerializerCodegen.GenerateSerializerSwitch(ctx, ilGen, map);
s_serializerSwitch = (SerializerSwitch)serializerSwitchMethod.CreateDelegate(typeof(SerializerSwitch));
ilGen = deserializerSwitchMethod.GetILGenerator();
DeserializerCodegen.GenerateDeserializerSwitch(ctx, ilGen, map);
s_deserializerSwitch = (DeserializerSwitch)deserializerSwitchMethod.CreateDelegate(typeof(DeserializerSwitch));
}
private Action<object, object> CreateSetAction()
{
if (null == this.SetMethod)
{
throw new InvalidOperationException(
string.Format("Cannot find a writable \"{0}\" from the type \"{1}\".", this.PropertyName, this.TargetType.FullName));
}
DynamicMethod method = new DynamicMethod("SetValue", null, new Type[] { typeof(object), typeof(object) });
ILGenerator ilGenerator = method.GetILGenerator();
Type paramType = this.SetMethod.GetParameters()[0].ParameterType;
ilGenerator.DeclareLocal(paramType);
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Castclass, this.TargetType);
ilGenerator.Emit(OpCodes.Ldarg_1);
if (paramType.IsValueType)
{
ilGenerator.Emit(OpCodes.Unbox, paramType);
if (valueTpyeOpCodes.ContainsKey(paramType))
{
OpCode load = (OpCode)valueTpyeOpCodes[paramType];
ilGenerator.Emit(load);
}
else
{
ilGenerator.Emit(OpCodes.Ldobj, paramType);
}
}
else
{
ilGenerator.Emit(OpCodes.Castclass, paramType);
}
ilGenerator.EmitCall(OpCodes.Callvirt, this.SetMethod, null);
ilGenerator.Emit(OpCodes.Ret);
method.DefineParameter(1, ParameterAttributes.In, "obj");
method.DefineParameter(2, ParameterAttributes.In, "value");
return (Action<object, object>)method.CreateDelegate(typeof(Action<object, object>));
}
/// <summary>
/// Creates a dynamic method for testing units. All units take the same parameters.
/// </summary>
/// <param name="runner">The runner.</param>
/// <returns></returns>
public static DynamicUnitTiming CreateTestMethod(MethodRunner runner)
{
// Create the basic signature.
var signature = new[] { typeof(object), typeof(int) };
var method = new DynamicMethod("DynamicUnitTest" + (counter++),
typeof(void),
signature,
typeof(MethodRunnerCompiler));
// Create an IL generator for the method body.
ILGenerator il = method.GetILGenerator(256);
// We determine what type of IL code we generate based on the singleton type.
if (runner.TimingAttribute.Singleton)
{
// Create a single call version.
CreateSingleton(runner, il);
}
else
{
// Create the local variables.
il.DeclareLocal(typeof(int));
il.DeclareLocal(typeof(bool));
// Declare the labels.
Label loopLabel = il.DefineLabel();
Label topLabel = il.DefineLabel();
// Assign zero to the count variable.
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Stloc_0);
il.Emit(OpCodes.Br_S, loopLabel);
// Build up the actual execution.
il.MarkLabel(topLabel);
// Figure out how to call this method.
il.Emit(OpCodes.Ldarg_0);
switch (runner.MethodSignature)
{
case MethodSignature.CountInt32:
il.Emit(OpCodes.Ldloc_0);
break;
case MethodSignature.CountIterationInt32:
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Ldarg_1);
break;
}
il.EmitCall(OpCodes.Call, runner.Method, null);
// Increment the counter.
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_0);
// Create the loop test. This loads the count variable and compares
// it to the second argument (iterations).
il.MarkLabel(loopLabel);
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Clt);
il.Emit(OpCodes.Stloc_1);
il.Emit(OpCodes.Ldloc_1);
il.Emit(OpCodes.Brtrue_S, topLabel);
}
// Finish up with a return IL.
il.Emit(OpCodes.Ret);
// Create the paramters.
method.DefineParameter(0, ParameterAttributes.In, "target");
method.DefineParameter(1, ParameterAttributes.In, "iteration");
// Create the delegate and return it.
return (DynamicUnitTiming) method.CreateDelegate(typeof(DynamicUnitTiming));
}
/// <summary>
/// Create DynamicMethod that configures capabilities using System.Web.Configuration.BrowserCapabilitiesFactory (or similar) type.
/// </summary>
/// <param name="BrowserCapabilitiesFactoryType">Type with ConfigureBrowserCapabilities and ConfigureCustomCapabilities methods.</param>
/// <remarks>
/// Generated method performs following code:
/// {
/// var capsFactory = new System.Web.Configuration.BrowserCapabilitiesFactory();
/// capsFactory.ConfigureBrowserCapabilities(headers, browserCaps);
/// capsFactory.ConfigureCustomCapabilities(headers, browserCaps);
/// }
/// </remarks>
private static Action<NameValueCollection, HttpBrowserCapabilities> BuildConfigureCapsMethod(Type/*!*/BrowserCapabilitiesFactoryType)
{
Debug.Assert(BrowserCapabilitiesFactoryType != null);
var method_ctor = BrowserCapabilitiesFactoryType.GetConstructor(Type.EmptyTypes);
var method_ConfigureBrowserCapabilities = BrowserCapabilitiesFactoryType.GetMethod("ConfigureBrowserCapabilities");
var method_ConfigureCustomCapabilities = BrowserCapabilitiesFactoryType.GetMethod("ConfigureCustomCapabilities");
if (method_ctor == null) throw new InvalidOperationException(string.Format("{0} does not implement .ctor.", BrowserCapabilitiesFactoryType.ToString()));
if (method_ConfigureBrowserCapabilities == null) throw new InvalidOperationException(string.Format("{0} does not implement {1}.", BrowserCapabilitiesFactoryType.ToString(), "ConfigureBrowserCapabilities"));
if (method_ConfigureCustomCapabilities == null) throw new InvalidOperationException(string.Format("{0} does not implement {1}.", BrowserCapabilitiesFactoryType.ToString(), "ConfigureCustomCapabilities"));
var method = new DynamicMethod("<dynamic>.BrowserCapabilitiesFactory", typeof(void), new Type[] { typeof(NameValueCollection), typeof(HttpBrowserCapabilities) });
var il = new PHP.Core.Emit.ILEmitter(method);
method.DefineParameter(1, System.Reflection.ParameterAttributes.None, "headers");
method.DefineParameter(2, System.Reflection.ParameterAttributes.None, "browserCaps");
// var capsFactory = new System.Web.Configuration.BrowserCapabilitiesFactory();
var loc_factory = il.DeclareLocal(BrowserCapabilitiesFactoryType);
il.Emit(OpCodes.Newobj, method_ctor);
il.Stloc(loc_factory);
// capsFactory.ConfigureBrowserCapabilities(headers, browserCaps);
il.Ldloc(loc_factory);
il.Ldarg(0);
il.Ldarg(1);
il.Emit(OpCodes.Callvirt, method_ConfigureBrowserCapabilities);
// capsFactory.ConfigureCustomCapabilities(headers, browserCaps);
il.Ldloc(loc_factory);
il.Ldarg(0);
il.Ldarg(1);
il.Emit(OpCodes.Callvirt, method_ConfigureCustomCapabilities);
// ret
il.Emit(OpCodes.Ret);
// done
return (Action<NameValueCollection, HttpBrowserCapabilities>)method.CreateDelegate(typeof(Action<NameValueCollection, HttpBrowserCapabilities>));
}
/// <summary>
/// Method CreateGetFunction.
/// </summary>
/// <param name="getMethod">MethodInfo of get method.</param>
/// <returns>GetFunction delegate.</returns>
private GetFunction<object, object> CreateGetFunction(MethodInfo getMethod)
{
DynamicMethod method = new DynamicMethod("GetValue", typeof(object), new Type[] { typeof(object) });
ILGenerator ilGenerator = method.GetILGenerator();
ilGenerator.DeclareLocal(typeof(object));
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Castclass, this.TargetType);
ilGenerator.EmitCall(OpCodes.Call, getMethod, null);
if (getMethod.ReturnType.IsValueType)
{
ilGenerator.Emit(OpCodes.Box, getMethod.ReturnType);
}
ilGenerator.Emit(OpCodes.Stloc_0);
ilGenerator.Emit(OpCodes.Ldloc_0);
ilGenerator.Emit(OpCodes.Ret);
method.DefineParameter(1, ParameterAttributes.In, "value");
return (GetFunction<object, object>)method.CreateDelegate(typeof(GetFunction<object, object>));
}
public MethodInfo DefineImplementationMethod(string id)
{
if (id == null)
throw new ArgumentNullException("id");
var parameterTypes = new[]
{
typeof (PFunction),
typeof (StackContext),
typeof (PValue[]),
typeof (PVariable[]),
typeof (PValue).MakeByRefType(),
typeof (ReturnMode).MakeByRefType(),
};
if (MakeAvailableForLinking)
{
//Create method stub
var dm = TargetType.DefineMethod
(
id,
MethodAttributes.Static | MethodAttributes.Public,
typeof (void),
parameterTypes);
dm.DefineParameter(1, ParameterAttributes.In, "source");
dm.DefineParameter(2, ParameterAttributes.In, "sctx");
dm.DefineParameter(3, ParameterAttributes.In, "args");
dm.DefineParameter(4, ParameterAttributes.In, "sharedVariables");
dm.DefineParameter(5, ParameterAttributes.Out, "result");
dm.DefineParameter(6, ParameterAttributes.Out, "returnMode");
Implementations.Add(id, dm);
//Create function field
var fb =
TargetType.DefineField
(_mkFieldName(id), typeof (PFunction),
FieldAttributes.Public | FieldAttributes.Static);
FunctionFields.Add(id, fb);
return dm;
}
var cilm =
new DynamicMethod
(
id,
typeof (void),
parameterTypes,
typeof (Runtime));
cilm.DefineParameter(1, ParameterAttributes.In, "source");
cilm.DefineParameter(2, ParameterAttributes.In, "sctx");
cilm.DefineParameter(3, ParameterAttributes.In, "args");
cilm.DefineParameter(4, ParameterAttributes.In, "sharedVariables");
cilm.DefineParameter(5, ParameterAttributes.Out, "result");
Implementations.Add(id, cilm);
return cilm;
}
/// <summary>
/// Compiles the addition from data
/// </summary>
/// <param name="handlers">Lookup table with functions</param>
/// <param name="functions">Table of functions</param>
/// <param name="values">Values associated with the functions</param>
/// <returns>Addition info</returns>
internal static Info From(Dictionary<uint, MethodInfo> handlers, uint[] functions, int[] values)
{
try
{
MethodInfo methodInfo;
//DynamicMethod method = new DynamicMethod(string.Empty, typeof(void), new Type[] { typeof(AdditionValue).MakeByRefType() });
DynamicMethod method = new DynamicMethod(string.Empty, MethodAttributes.Public | MethodAttributes.Static, CallingConventions.Standard, typeof(void), new Type[] { typeof(AdditionValue).MakeByRefType() }, typeof(Additions).Module, false);
method.DefineParameter(1, ParameterAttributes.Out, "test");
ILGenerator ilgen = method.GetILGenerator();
for (int i = 0; i < functions.Length; i++)
{
if (functions[i] > 0)
{
if (handlers.TryGetValue(functions[i], out methodInfo) && methodInfo != null)
{
//Parse additionValue by reference
ilgen.Emit(OpCodes.Ldarg_0, 0);
//Hardcode integer
ilgen.Emit(OpCodes.Ldc_I4, values[i]);
//Call method
ilgen.Emit(OpCodes.Call, methodInfo);
}
}
}
//No values on the stack and return
ilgen.Emit(OpCodes.Ret);
return new Info(method);
}
catch (Exception e)
{
HostContext.Current.AddUnhandeldException(e);
return null;
}
}
/// <summary>
/// Method CreateSetAction.
/// </summary>
/// <param name="setMethod">MethodInfo of set method.</param>
/// <returns>SetAction delegate.</returns>
private SetAction<object, object> CreateSetAction(MethodInfo setMethod)
{
Type paramType = setMethod.GetParameters()[0].ParameterType;
DynamicMethod method = new DynamicMethod("SetValue", null, new Type[] { typeof(object), typeof(object) });
ILGenerator ilGenerator = method.GetILGenerator();
ilGenerator.DeclareLocal(paramType);
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Castclass, this.TargetType);
ilGenerator.Emit(OpCodes.Ldarg_1);
if (paramType.IsValueType)
{
ilGenerator.Emit(OpCodes.Unbox, paramType);
if (ValueTypeOpCodeDictionary.ContainsKey(paramType))
{
OpCode load = (OpCode)ValueTypeOpCodeDictionary[paramType];
ilGenerator.Emit(load);
}
else
{
ilGenerator.Emit(OpCodes.Ldobj, paramType);
}
}
else
{
ilGenerator.Emit(OpCodes.Castclass, paramType);
}
ilGenerator.EmitCall(OpCodes.Callvirt, setMethod, null);
ilGenerator.Emit(OpCodes.Ret);
method.DefineParameter(1, ParameterAttributes.In, "obj");
method.DefineParameter(2, ParameterAttributes.In, "value");
return (SetAction<object, object>)method.CreateDelegate(typeof(SetAction<object, object>));
}
private static MethodInfo WrapMethod(MethodInfo method)
{
Type returnValueType;
bool needsWrapper;
if (LP64) return method; // Do not wrap the method in 64 bits mode.
needsWrapper = (returnValueType = GetCompatibleType(method.ReturnType)) != method.ReturnType;
// Prospection only. Do not create a new parameter array now…
var originalParameters = method.GetParameters(); // We can't avoid this memory loss anyway
for (int i = 0; i < originalParameters.Length; i++)
needsWrapper = GetCompatibleType(originalParameters[i].ParameterType) != originalParameters[i].ParameterType || needsWrapper;
// In most cases, we won't need a wrapper, and everything will stop there.
if (!needsWrapper) return method;
// Create the new parameter type array
var newParameterTypes = new Type[originalParameters.Length];
for (int i = 0; i < originalParameters.Length; i++)
newParameterTypes[i] = GetCompatibleType(originalParameters[i].ParameterType);
// Create the new method
var dynamicMethod = new DynamicMethod("Wrapper." + method.Name, returnValueType, newParameterTypes, method.DeclaringType, false);
var ilGenerator = dynamicMethod.GetILGenerator();
dynamicMethod.DefineParameter(0, method.ReturnParameter.Attributes, method.ReturnParameter.Name);
for (int i = 0; i < originalParameters.Length; i++)
{
var originalParameter = originalParameters[i];
var newType = newParameterTypes[i];
dynamicMethod.DefineParameter(i + 1, originalParameter.Attributes, originalParameter.Name);
switch (i)
{
case 0: ilGenerator.Emit(OpCodes.Ldarg_0); break;
case 1: ilGenerator.Emit(OpCodes.Ldarg_1); break;
case 2: ilGenerator.Emit(OpCodes.Ldarg_2); break;
case 3: ilGenerator.Emit(OpCodes.Ldarg_3); break;
default:
if (i < 256) ilGenerator.Emit(OpCodes.Ldarg_S, (byte)i);
else ilGenerator.Emit(OpCodes.Ldarg, unchecked((short)i));
break;
}
if (newType == originalParameter.ParameterType) continue;
else if (newType == typeof(float)) ilGenerator.Emit(OpCodes.Conv_R8);
else if (newType == typeof(RectangleF)) ilGenerator.Emit(OpCodes.Call, rectangle32To64);
else if (newType == typeof(PointF)) ilGenerator.Emit(OpCodes.Call, point32To64);
else if (newType == typeof(SizeF)) ilGenerator.Emit(OpCodes.Call, size32To64);
else throw new InvalidOperationException();
}
ilGenerator.Emit(OpCodes.Call, method);
if (returnValueType != method.ReturnType)
{
if (returnValueType == typeof(float)) ilGenerator.Emit(OpCodes.Conv_R4);
else if (returnValueType == typeof(RectangleF)) ilGenerator.Emit(OpCodes.Call, rectangle64To32);
else if (returnValueType == typeof(PointF)) ilGenerator.Emit(OpCodes.Call, point64To32);
else if (returnValueType == typeof(SizeF)) ilGenerator.Emit(OpCodes.Call, size64To32);
}
ilGenerator.Emit(OpCodes.Ret);
wrapperMethods.Add(dynamicMethod);
return dynamicMethod;
}
/// <summary>
/// Define a method in this module with the specified name and parameters.
/// </summary>
public MethodInfo DefineMethod(string name, Type returnType, Type[] paramTypes, string[] paramNames, XmlILMethodAttributes xmlAttrs) {
MethodInfo methResult;
int uniqueId = 1;
string nameOrig = name;
Type[] paramTypesNew;
bool isRaw = (xmlAttrs & XmlILMethodAttributes.Raw) != 0;
// Ensure that name is unique
while (this.methods[name] != null) {
// Add unique id to end of name in order to make it unique within this module
uniqueId++;
name = nameOrig + " (" + uniqueId + ")";
}
if (!isRaw) {
// XmlQueryRuntime is always 0th parameter
paramTypesNew = new Type[paramTypes.Length + 1];
paramTypesNew[0] = typeof(XmlQueryRuntime);
Array.Copy(paramTypes, 0, paramTypesNew, 1, paramTypes.Length);
paramTypes = paramTypesNew;
}
if (!this.useLRE) {
MethodBuilder methBldr;
methBldr = this.typeBldr.DefineMethod(
name,
MethodAttributes.Private | MethodAttributes.Static,
returnType,
paramTypes);
if (emitSymbols && (xmlAttrs & XmlILMethodAttributes.NonUser) != 0) {
// Add DebuggerStepThroughAttribute and DebuggerNonUserCodeAttribute to non-user methods so that debugging is a better experience
methBldr.SetCustomAttribute(new CustomAttributeBuilder(XmlILConstructors.StepThrough, new object[] {}));
methBldr.SetCustomAttribute(new CustomAttributeBuilder(XmlILConstructors.NonUserCode, new object[] {}));
}
if (!isRaw)
methBldr.DefineParameter(1, ParameterAttributes.None, RuntimeName);
for (int i = 0; i < paramNames.Length; i++) {
if (paramNames[i] != null && paramNames[i].Length != 0)
methBldr.DefineParameter(i + (isRaw ? 1 : 2), ParameterAttributes.None, paramNames[i]);
}
methResult = methBldr;
}
else {
DynamicMethod methDyn = new DynamicMethod(name, returnType, paramTypes, LREModule);
methDyn.InitLocals = true;
if (!isRaw)
methDyn.DefineParameter(1, ParameterAttributes.None, RuntimeName);
for (int i = 0; i < paramNames.Length; i++) {
if (paramNames[i] != null && paramNames[i].Length != 0)
methDyn.DefineParameter(i + (isRaw ? 1 : 2), ParameterAttributes.None, paramNames[i]);
}
methResult = methDyn;
}
// Index method by name
this.methods[name] = methResult;
return methResult;
}
/// <summary>
/// Coerces a source delegate to a target delegate type by casting the source delegate's
/// parameters individually to the target delegate type's parameter types.
/// </summary>
/// <param name="targetDelegateType">The target delegate type.</param>
/// <param name="sourceDelegate">The source delegate, or null.</param>
/// <returns>The target delegate, or null if the source delegate was null.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="targetDelegateType"/>
/// is null.</exception>
/// <exception cref="ArgumentException">Thrown if <paramref name="targetDelegateType"/>
/// is not a delegate type.</exception>
/// <exception cref="InvalidOperationException">Thrown if the source and target delegate types are
/// incompatible such as if they have different numbers of parameters or a different
/// composition of out/ref parameters.</exception>
public static Delegate CoerceDelegate(Type targetDelegateType, Delegate sourceDelegate)
{
if (targetDelegateType == null)
throw new ArgumentNullException("targetDelegateType");
if (sourceDelegate == null)
return null;
if (!typeof(Delegate).IsAssignableFrom(targetDelegateType))
throw new ArgumentException("Target type must be a Delegate type.", "targetDelegateType");
Type sourceDelegateType = sourceDelegate.GetType();
if (targetDelegateType.IsAssignableFrom(sourceDelegateType))
return sourceDelegate;
MethodInfo targetInvokeMethod, sourceInvokeMethod;
Type targetReturnType, sourceReturnType;
ParameterInfo[] targetParameters, sourceParameters;
GetDelegateTypeInfo(targetDelegateType, out targetInvokeMethod, out targetReturnType, out targetParameters);
GetDelegateTypeInfo(sourceDelegateType, out sourceInvokeMethod, out sourceReturnType, out sourceParameters);
if (!IsDelegateReturnTypeCompatible(targetReturnType, sourceReturnType))
throw new InvalidOperationException("The delegate signatures cannot be coerced because they have incompatible return types.");
if (!IsDelegateParameterListCompatible(targetParameters, sourceParameters))
throw new InvalidOperationException("The delegate signatures cannot be coerced because they have incompatible parameters.");
// Recreating the method each time is not very efficient but this function is not intended
// to be used very often.
// TODO: Determine whether it would really be worth caching the method.
Type[] invokerParameterTypes = new Type[targetParameters.Length + 1];
invokerParameterTypes[0] = sourceDelegateType;
for (int i = 0; i < targetParameters.Length; i++)
invokerParameterTypes[i + 1] = targetParameters[i].ParameterType;
DynamicMethod method = new DynamicMethod("DelegateInvoker", targetReturnType, invokerParameterTypes, true);
method.DefineParameter(0, ParameterAttributes.None, "__sourceDelegate");
for (int i = 0; i < targetParameters.Length; i++)
method.DefineParameter(i + 1, targetParameters[i].Attributes, targetParameters[i].Name);
ILGenerator gen = method.GetILGenerator();
// Load the source delegate onto the top of the evaluation stack.
gen.Emit(OpCodes.Ldarg_0);
// Load the arguments onto the evaluation stack.
LocalBuilder[] locals = null;
for (int i = 0; i < targetParameters.Length; i++)
{
if (IsOutputParameter(sourceParameters[i]))
{
if (locals == null)
locals = new LocalBuilder[targetParameters.Length];
locals[i] = gen.DeclareLocal(sourceParameters[i].ParameterType.GetElementType());
if (IsInputParameter(sourceParameters[i]))
{
gen.Emit(OpCodes.Ldarg, i + 1);
EmitLoadIndirect(gen, targetParameters[i].ParameterType.GetElementType());
EmitConversion(gen, sourceParameters[i].ParameterType.GetElementType(), targetParameters[i].ParameterType.GetElementType());
gen.Emit(OpCodes.Stloc, locals[i].LocalIndex);
}
gen.Emit(OpCodes.Ldloca, locals[i].LocalIndex);
}
else
{
gen.Emit(OpCodes.Ldarg, i + 1);
EmitConversion(gen, sourceParameters[i].ParameterType, targetParameters[i].ParameterType);
}
}
// Call the source delegate's Invoke method.
gen.EmitCall(OpCodes.Callvirt, sourceInvokeMethod, null);
// Store the resulting output parameters.
for (int i = 0; i < targetParameters.Length; i++)
{
if (IsOutputParameter(sourceParameters[i]))
{
gen.Emit(OpCodes.Ldarg, i + 1);
gen.Emit(OpCodes.Ldloc, locals[i].LocalIndex);
EmitConversion(gen, targetParameters[i].ParameterType.GetElementType(), sourceParameters[i].ParameterType.GetElementType());
EmitStoreIndirect(gen, targetParameters[i].ParameterType.GetElementType());
}
}
// Return the result, if any.
if (targetReturnType != null)
EmitConversion(gen, targetReturnType, sourceReturnType);
gen.Emit(OpCodes.Ret);
return method.CreateDelegate(targetDelegateType, sourceDelegate);
}
static Dictionary<Type, ushort> GenerateDynamic(Type[] types)
{
Dictionary<Type, TypeData> map = GenerateTypeData(types);
var nonStaticTypes = map.Where(kvp => kvp.Value.IsDynamic).Select(kvp => kvp.Key);
/* generate stubs */
foreach (var type in nonStaticTypes)
{
var dm = GenerateDynamicSerializerStub(type);
map[type].WriterMethodInfo = dm;
map[type].WriterILGen = dm.GetILGenerator();
}
foreach (var type in nonStaticTypes)
{
var dm = GenerateDynamicDeserializerStub(type);
map[type].ReaderMethodInfo = dm;
map[type].ReaderILGen = dm.GetILGenerator();
}
var serializerSwitchMethod = new DynamicMethod("SerializerSwitch", null,
new Type[] { typeof(Stream), typeof(object) },
typeof(Serializer), true);
serializerSwitchMethod.DefineParameter(1, ParameterAttributes.None, "stream");
serializerSwitchMethod.DefineParameter(2, ParameterAttributes.None, "value");
var serializerSwitchMethodInfo = serializerSwitchMethod;
var deserializerSwitchMethod = new DynamicMethod("DeserializerSwitch", null,
new Type[] { typeof(Stream), typeof(object).MakeByRefType() },
typeof(Serializer), true);
deserializerSwitchMethod.DefineParameter(1, ParameterAttributes.None, "stream");
deserializerSwitchMethod.DefineParameter(2, ParameterAttributes.Out, "value");
var deserializerSwitchMethodInfo = deserializerSwitchMethod;
var ctx = new CodeGenContext(map, serializerSwitchMethodInfo, deserializerSwitchMethodInfo);
/* generate bodies */
foreach (var type in nonStaticTypes)
GenerateSerializerBody(ctx, type, map[type].WriterILGen);
foreach (var type in nonStaticTypes)
GenerateDeserializerBody(ctx, type, map[type].ReaderILGen);
var ilGen = serializerSwitchMethod.GetILGenerator();
GenerateSerializerSwitch(ctx, ilGen, map);
s_serializerSwitch = (SerializerSwitch)serializerSwitchMethod.CreateDelegate(typeof(SerializerSwitch));
ilGen = deserializerSwitchMethod.GetILGenerator();
GenerateDeserializerSwitch(ctx, ilGen, map);
s_deserializerSwitch = (DeserializerSwitch)deserializerSwitchMethod.CreateDelegate(typeof(DeserializerSwitch));
return map.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.TypeID);
}
private Func<object, object> CreateGetFunction()
{
if (null == this.GetMethod)
{
throw new InvalidOperationException(
string.Format("Cannot find a readable \"{0}\" from the type \"{1}\".", this.PropertyName, this.TargetType.FullName));
}
DynamicMethod method = new DynamicMethod("GetValue", typeof(object), new Type[] { typeof(object) });
ILGenerator ilGenerator = method.GetILGenerator();
ilGenerator.DeclareLocal(typeof(object));
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Castclass, this.TargetType);
ilGenerator.EmitCall(OpCodes.Call, this.GetMethod, null);
if (this.GetMethod.ReturnType.IsValueType)
{
ilGenerator.Emit(OpCodes.Box, this.GetMethod.ReturnType);
}
ilGenerator.Emit(OpCodes.Stloc_0);
ilGenerator.Emit(OpCodes.Ldloc_0);
ilGenerator.Emit(OpCodes.Ret);
method.DefineParameter(1, ParameterAttributes.In, "value");
return (Func<object, object>)method.CreateDelegate(typeof(Func<object, object>));
}