/// <summary>
/// Determines whether this assembly has internals visible to dynamic proxy.
/// </summary>
/// <param name="asm">The assembly to inspect.</param>
public static bool IsInternalToDynamicProxy(Assembly asm)
{
using (UpgradableLock locker = new UpgradableLock(internalsToDynProxyLock))
{
if (internalsToDynProxy.ContainsKey(asm))
{
return internalsToDynProxy[asm];
}
locker.Upgrade();
if (internalsToDynProxy.ContainsKey(asm))
{
return internalsToDynProxy[asm];
}
InternalsVisibleToAttribute[] atts = (InternalsVisibleToAttribute[])
asm.GetCustomAttributes(typeof (InternalsVisibleToAttribute), false);
bool found = false;
foreach (InternalsVisibleToAttribute internals in atts)
{
if (internals.AssemblyName.Contains(ModuleScope.DEFAULT_ASSEMBLY_NAME))
{
found = true;
break;
}
}
internalsToDynProxy.Add(asm, found);
return found;
}
}
public Type GenerateCode(Type proxyTargetType, Type[] interfaces, ProxyGenerationOptions options)
{
// make sure ProxyGenerationOptions is initialized
options.Initialize();
CheckNotGenericTypeDefinition(proxyTargetType, "proxyTargetType");
CheckNotGenericTypeDefinitions(interfaces, "interfaces");
Type generatedType;
CacheKey cacheKey = new CacheKey(proxyTargetType, targetType, interfaces, options);
using (UpgradableLock locker = new UpgradableLock(Scope.RWLock))
{
Type cacheType = GetFromCache(cacheKey);
if (cacheType != null)
{
return cacheType;
}
locker.Upgrade();
cacheType = GetFromCache(cacheKey);
if (cacheType != null)
{
return cacheType;
}
SetGenerationOptions(options);
String newName = targetType.Name + "Proxy" + Guid.NewGuid().ToString("N");
// Add Interfaces that the proxy implements
List<Type> interfaceList = new List<Type>();
interfaceList.Add(targetType);
if (interfaces != null)
{
interfaceList.AddRange(interfaces);
}
#if SILVERLIGHT
#warning What to do?
#else
if (!interfaceList.Contains(typeof(ISerializable)))
interfaceList.Add(typeof(ISerializable));
#endif
AddMixinInterfaces(interfaceList);
AddDefaultInterfaces(interfaceList);
Type baseType = options.BaseTypeForInterfaceProxy;
ClassEmitter emitter = BuildClassEmitter(newName, baseType, interfaceList);
CreateOptionsField(emitter);
emitter.AddCustomAttributes(options);
#if SILVERLIGHT
#warning XmlIncludeAttribute is in silverlight, do we want to explore this?
#else
emitter.DefineCustomAttribute(new XmlIncludeAttribute(targetType));
emitter.DefineCustomAttribute(new SerializableAttribute());
#endif
// Custom attributes
ReplicateNonInheritableAttributes(targetType, emitter);
// Fields generations
FieldReference interceptorsField = emitter.CreateField("__interceptors", typeof(IInterceptor[]));
targetField = emitter.CreateField("__target", proxyTargetType);
#if SILVERLIGHT
#warning XmlIncludeAttribute is in silverlight, do we want to explore this?
#else
emitter.DefineCustomAttributeFor(interceptorsField, new XmlIgnoreAttribute());
emitter.DefineCustomAttributeFor(targetField, new XmlIgnoreAttribute());
#endif
// Implement builtin Interfaces
ImplementProxyTargetAccessor(targetType, emitter, interceptorsField);
// Collect methods
PropertyToGenerate[] propsToGenerate;
EventToGenerate[] eventToGenerates;
MethodInfo[] methods = CollectMethodsAndProperties(emitter, targetType, out propsToGenerate, out eventToGenerates);
if (interfaces != null && interfaces.Length != 0)
{
List<Type> tmpInterfaces = new List<Type>(interfaces);
foreach (Type inter in interfaces)
{
if (inter.IsAssignableFrom(proxyTargetType))
{
PropertyToGenerate[] tempPropsToGenerate;
EventToGenerate[] tempEventToGenerates;
MethodInfo[] methodsTemp =
CollectMethodsAndProperties(emitter, inter, out tempPropsToGenerate, out tempEventToGenerates);
PropertyToGenerate[] newPropsToGenerate =
new PropertyToGenerate[tempPropsToGenerate.Length + propsToGenerate.Length];
MethodInfo[] newMethods = new MethodInfo[methodsTemp.Length + methods.Length];
EventToGenerate[] newEvents = new EventToGenerate[eventToGenerates.Length + tempEventToGenerates.Length];
Array.Copy(methods, newMethods, methods.Length);
Array.Copy(methodsTemp, 0, newMethods, methods.Length, methodsTemp.Length);
Array.Copy(propsToGenerate, newPropsToGenerate, propsToGenerate.Length);
Array.Copy(tempPropsToGenerate, 0, newPropsToGenerate, propsToGenerate.Length, tempPropsToGenerate.Length);
Array.Copy(eventToGenerates, newEvents, eventToGenerates.Length);
Array.Copy(tempEventToGenerates, 0, newEvents, eventToGenerates.Length, tempEventToGenerates.Length);
methods = newMethods;
propsToGenerate = newPropsToGenerate;
eventToGenerates = newEvents;
tmpInterfaces.Remove(inter);
}
}
interfaces = tmpInterfaces.ToArray();
}
RegisterMixinMethodsAndProperties(emitter, ref methods, ref propsToGenerate, ref eventToGenerates);
options.Hook.MethodsInspected();
// Constructor
ConstructorEmitter typeInitializer = GenerateStaticConstructor(emitter);
if (!proxyTargetType.IsInterface)
{
CacheMethodTokens(emitter, MethodFinder.GetAllInstanceMethods(proxyTargetType,
BindingFlags.Public | BindingFlags.Instance),
typeInitializer);
}
CreateInitializeCacheMethodBody(proxyTargetType, methods, emitter, typeInitializer);
FieldReference[] mixinFields = AddMixinFields(emitter);
List<FieldReference> fields = new List<FieldReference>(mixinFields);
fields.Add(interceptorsField);
fields.Add(targetField);
GenerateConstructors(emitter, baseType, fields.ToArray());
// GenerateParameterlessConstructor(emitter, interceptorsField, baseType);
// Implement interfaces
if (interfaces != null && interfaces.Length != 0)
{
foreach (Type inter in interfaces)
{
ImplementBlankInterface(targetType, inter, emitter, interceptorsField, typeInitializer, AllowChangeTarget);
}
}
// Create invocation types
foreach (MethodInfo method in methods)
{
CreateInvocationForMethod(emitter, method, proxyTargetType);
}
// Create methods overrides
Dictionary<MethodInfo, MethodEmitter> method2Emitter = new Dictionary<MethodInfo, MethodEmitter>();
foreach (MethodInfo method in methods)
{
if (method.IsSpecialName &&
(method.Name.StartsWith("get_") || method.Name.StartsWith("set_") ||
method.Name.StartsWith("add_") || method.Name.StartsWith("remove_")) ||
methodsToSkip.Contains(method))
{
continue;
}
NestedClassEmitter nestedClass = (NestedClassEmitter)method2Invocation[method];
MethodEmitter newProxiedMethod = CreateProxiedMethod(
targetType, method, emitter, nestedClass, interceptorsField, GetTargetRef(method, mixinFields, targetField),
ConstructorVersion.WithTargetMethod, (MethodInfo)method2methodOnTarget[method]);
ReplicateNonInheritableAttributes(method, newProxiedMethod);
method2Emitter[method] = newProxiedMethod;
}
foreach (PropertyToGenerate propToGen in propsToGenerate)
{
if (propToGen.CanRead)
{
NestedClassEmitter nestedClass = (NestedClassEmitter)method2Invocation[propToGen.GetMethod];
MethodAttributes atts = ObtainMethodAttributes(propToGen.GetMethod);
MethodEmitter getEmitter = propToGen.Emitter.CreateGetMethod(atts);
ImplementProxiedMethod(targetType, getEmitter,
propToGen.GetMethod, emitter,
nestedClass, interceptorsField, GetTargetRef(propToGen.GetMethod, mixinFields, targetField),
ConstructorVersion.WithTargetMethod,
(MethodInfo)method2methodOnTarget[propToGen.GetMethod]);
ReplicateNonInheritableAttributes(propToGen.GetMethod, getEmitter);
// emitter.TypeBuilder.DefineMethodOverride(getEmitter.MethodBuilder, propToGen.GetMethod);
}
if (propToGen.CanWrite)
{
NestedClassEmitter nestedClass = (NestedClassEmitter)method2Invocation[propToGen.SetMethod];
MethodAttributes atts = ObtainMethodAttributes(propToGen.SetMethod);
MethodEmitter setEmitter = propToGen.Emitter.CreateSetMethod(atts);
ImplementProxiedMethod(targetType, setEmitter,
propToGen.SetMethod, emitter,
nestedClass, interceptorsField, GetTargetRef(propToGen.SetMethod, mixinFields, targetField),
ConstructorVersion.WithTargetMethod,
(MethodInfo)method2methodOnTarget[propToGen.SetMethod]);
ReplicateNonInheritableAttributes(propToGen.SetMethod, setEmitter);
// emitter.TypeBuilder.DefineMethodOverride(setEmitter.MethodBuilder, propToGen.SetMethod);
}
}
foreach (EventToGenerate eventToGenerate in eventToGenerates)
{
NestedClassEmitter add_nestedClass = (NestedClassEmitter)method2Invocation[eventToGenerate.AddMethod];
MethodAttributes add_atts = ObtainMethodAttributes(eventToGenerate.AddMethod);
MethodEmitter addEmitter = eventToGenerate.Emitter.CreateAddMethod(add_atts);
ImplementProxiedMethod(targetType, addEmitter,
eventToGenerate.AddMethod, emitter,
add_nestedClass, interceptorsField,
GetTargetRef(eventToGenerate.AddMethod, mixinFields, targetField),
ConstructorVersion.WithTargetMethod,
(MethodInfo)method2methodOnTarget[eventToGenerate.AddMethod]);
ReplicateNonInheritableAttributes(eventToGenerate.AddMethod, addEmitter);
NestedClassEmitter remove_nestedClass = (NestedClassEmitter)method2Invocation[eventToGenerate.RemoveMethod];
MethodAttributes remove_atts = ObtainMethodAttributes(eventToGenerate.RemoveMethod);
MethodEmitter removeEmitter = eventToGenerate.Emitter.CreateRemoveMethod(remove_atts);
ImplementProxiedMethod(targetType, removeEmitter,
eventToGenerate.RemoveMethod, emitter,
remove_nestedClass, interceptorsField,
GetTargetRef(eventToGenerate.RemoveMethod, mixinFields, targetField),
ConstructorVersion.WithTargetMethod,
(MethodInfo)method2methodOnTarget[eventToGenerate.RemoveMethod]);
ReplicateNonInheritableAttributes(eventToGenerate.RemoveMethod, removeEmitter);
}
#if SILVERLIGHT
#warning What to do?
#else
ImplementGetObjectData(emitter, interceptorsField, mixinFields, interfaces);
#endif
// Complete Initialize
CompleteInitCacheMethod(typeInitializer.CodeBuilder);
// Crosses fingers and build type
generatedType = emitter.BuildType();
InitializeStaticFields(generatedType);
/*foreach (MethodInfo m in TypeFinder.GetMethods(generatedType, BindingFlags.Instance | BindingFlags.Public))
{
ParameterInfo[] parameters = m.GetParameters();
// Console.WriteLine(m.Name);
for (int i = 0; i < parameters.Length; i++)
{
ParameterInfo paramInfo = parameters[i];
// Console.WriteLine("{0} {1} {2} {3}", paramInfo.Name, paramInfo.ParameterType, paramInfo.Attributes, paramInfo.Position);
// Console.WriteLine("{0} {1} {2} {3}", paramInfo2.Name, paramInfo2.ParameterType, paramInfo2.Attributes, paramInfo2.Position);
}
}
*/
AddToCache(cacheKey, generatedType);
}
return generatedType;
}
public Type GenerateCode(Type[] interfaces, ProxyGenerationOptions options)
{
// make sure ProxyGenerationOptions is initialized
options.Initialize();
CheckNotGenericTypeDefinitions(interfaces, "interfaces");
Type type;
CacheKey cacheKey = new CacheKey(targetType, interfaces, options);
using (UpgradableLock locker = new UpgradableLock(Scope.RWLock))
{
Type cacheType = GetFromCache(cacheKey);
if (cacheType != null)
{
return cacheType;
}
locker.Upgrade();
cacheType = GetFromCache(cacheKey);
if (cacheType != null)
{
return cacheType;
}
SetGenerationOptions(options);
String newName = targetType.Name + "Proxy" + Guid.NewGuid().ToString("N");
// Add Interfaces that the proxy implements
List<Type> interfaceList = new List<Type>();
if (interfaces != null)
{
interfaceList.AddRange(interfaces);
}
AddMixinInterfaces(interfaceList);
AddDefaultInterfaces(interfaceList);
#if !SILVERLIGHT
if (targetType.IsSerializable)
{
delegateToBaseGetObjectData = VerifyIfBaseImplementsGetObjectData(targetType);
if (!interfaceList.Contains(typeof(ISerializable)))
{
interfaceList.Add(typeof(ISerializable));
}
}
#endif
ClassEmitter emitter = BuildClassEmitter(newName, targetType, interfaceList);
CreateOptionsField(emitter);
emitter.AddCustomAttributes(options);
#if !SILVERLIGHT
emitter.DefineCustomAttribute(new XmlIncludeAttribute(targetType));
#endif
// Custom attributes
ReplicateNonInheritableAttributes(targetType, emitter);
// Fields generations
FieldReference interceptorsField =
emitter.CreateField("__interceptors", typeof (IInterceptor[]));
// Implement builtin Interfaces
ImplementProxyTargetAccessor(targetType, emitter, interceptorsField);
#if !SILVERLIGHT
emitter.DefineCustomAttributeFor(interceptorsField, new XmlIgnoreAttribute());
#endif
// Collect methods
PropertyToGenerate[] propsToGenerate;
EventToGenerate[] eventToGenerates;
MethodInfo[] methods = CollectMethodsAndProperties(emitter, targetType, out propsToGenerate, out eventToGenerates);
RegisterMixinMethodsAndProperties(emitter, ref methods, ref propsToGenerate, ref eventToGenerates);
options.Hook.MethodsInspected();
// Constructor
ConstructorEmitter typeInitializer = GenerateStaticConstructor(emitter);
FieldReference[] mixinFields = AddMixinFields(emitter);
// constructor arguments
List<FieldReference> constructorArguments = new List<FieldReference>(mixinFields);
constructorArguments.Add(interceptorsField);
CreateInitializeCacheMethodBody(targetType, methods, emitter, typeInitializer);
GenerateConstructors(emitter, targetType, constructorArguments.ToArray());
GenerateParameterlessConstructor(emitter, targetType, interceptorsField);
#if !SILVERLIGHT
if (delegateToBaseGetObjectData)
{
GenerateSerializationConstructor(emitter, interceptorsField, mixinFields);
}
#endif
// Implement interfaces
if (interfaces != null && interfaces.Length != 0)
{
foreach (Type inter in interfaces)
{
ImplementBlankInterface(targetType, inter, emitter, interceptorsField, typeInitializer);
}
}
// Create callback methods
Dictionary<MethodInfo, MethodBuilder> method2Callback = new Dictionary<MethodInfo, MethodBuilder>();
foreach (MethodInfo method in methods)
{
method2Callback[method] = CreateCallbackMethod(emitter, method, method);
}
// Create invocation types
Dictionary<MethodInfo, NestedClassEmitter> method2Invocation = new Dictionary<MethodInfo, NestedClassEmitter>();
foreach (MethodInfo method in methods)
{
MethodBuilder callbackMethod = method2Callback[method];
method2Invocation[method] = BuildInvocationNestedType(emitter, targetType,
IsMixinMethod(method)
? method.DeclaringType
: emitter.TypeBuilder,
method, callbackMethod,
ConstructorVersion.WithoutTargetMethod);
}
// Create methods overrides
Dictionary<MethodInfo, MethodEmitter> method2Emitter = new Dictionary<MethodInfo, MethodEmitter>();
foreach (MethodInfo method in methods)
{
if (method.IsSpecialName &&
(method.Name.StartsWith("get_") || method.Name.StartsWith("set_") ||
method.Name.StartsWith("add_") || method.Name.StartsWith("remove_")) ||
methodsToSkip.Contains(method))
{
continue;
}
NestedClassEmitter nestedClass = method2Invocation[method];
Reference targetRef = GetTargetRef(method, mixinFields, SelfReference.Self);
MethodEmitter newProxiedMethod = CreateProxiedMethod(
targetType, method, emitter, nestedClass, interceptorsField, targetRef,
ConstructorVersion.WithoutTargetMethod, null);
ReplicateNonInheritableAttributes(method, newProxiedMethod);
method2Emitter[method] = newProxiedMethod;
}
foreach (PropertyToGenerate propToGen in propsToGenerate)
{
if (propToGen.CanRead)
{
NestedClassEmitter nestedClass = method2Invocation[propToGen.GetMethod];
MethodAttributes atts = ObtainMethodAttributes(propToGen.GetMethod);
MethodEmitter getEmitter = propToGen.Emitter.CreateGetMethod(atts);
Reference targetRef = GetTargetRef(propToGen.GetMethod, mixinFields, SelfReference.Self);
ImplementProxiedMethod(targetType, getEmitter,
propToGen.GetMethod, emitter,
nestedClass, interceptorsField, targetRef,
ConstructorVersion.WithoutTargetMethod, null);
ReplicateNonInheritableAttributes(propToGen.GetMethod, getEmitter);
}
if (propToGen.CanWrite)
{
NestedClassEmitter nestedClass = method2Invocation[propToGen.SetMethod];
MethodAttributes atts = ObtainMethodAttributes(propToGen.SetMethod);
MethodEmitter setEmitter = propToGen.Emitter.CreateSetMethod(atts);
Reference targetRef = GetTargetRef(propToGen.SetMethod, mixinFields, SelfReference.Self);
ImplementProxiedMethod(targetType, setEmitter,
propToGen.SetMethod, emitter,
nestedClass, interceptorsField, targetRef,
ConstructorVersion.WithoutTargetMethod, null);
ReplicateNonInheritableAttributes(propToGen.SetMethod, setEmitter);
}
}
foreach (EventToGenerate eventToGenerate in eventToGenerates)
{
NestedClassEmitter add_nestedClass = method2Invocation[eventToGenerate.AddMethod];
MethodAttributes add_atts = ObtainMethodAttributes(eventToGenerate.AddMethod);
MethodEmitter addEmitter = eventToGenerate.Emitter.CreateAddMethod(add_atts);
ImplementProxiedMethod(targetType, addEmitter,
eventToGenerate.AddMethod, emitter,
add_nestedClass, interceptorsField,
GetTargetRef(eventToGenerate.AddMethod, mixinFields, SelfReference.Self),
ConstructorVersion.WithoutTargetMethod, null);
ReplicateNonInheritableAttributes(eventToGenerate.AddMethod, addEmitter);
NestedClassEmitter remove_nestedClass = method2Invocation[eventToGenerate.RemoveMethod];
MethodAttributes remove_atts = ObtainMethodAttributes(eventToGenerate.RemoveMethod);
MethodEmitter removeEmitter = eventToGenerate.Emitter.CreateRemoveMethod(remove_atts);
ImplementProxiedMethod(targetType, removeEmitter,
eventToGenerate.RemoveMethod, emitter,
remove_nestedClass, interceptorsField,
GetTargetRef(eventToGenerate.RemoveMethod, mixinFields, SelfReference.Self),
ConstructorVersion.WithoutTargetMethod, null);
ReplicateNonInheritableAttributes(eventToGenerate.RemoveMethod, removeEmitter);
}
#if !SILVERLIGHT
ImplementGetObjectData(emitter, interceptorsField, mixinFields, interfaces);
#endif
// Complete type initializer code body
CompleteInitCacheMethod(typeInitializer.CodeBuilder);
// Build type
type = emitter.BuildType();
InitializeStaticFields(type);
AddToCache(cacheKey, type);
}
return type;
}
