public void OverridingSimpleMembersOfOpenGenericClass() { CustomClassEmitter classEmitter = new CustomClassEmitter(Scope, "OverridingSimpleMembersOfOpenGenericClass", typeof(GenericClassWithAllKindsOfMembers <>), Type.EmptyTypes, TypeAttributes.Public | TypeAttributes.Class, false); MethodInfo baseMethod = typeof(GenericClassWithAllKindsOfMembers <>).GetMethod("Method"); var overriddenMethod = classEmitter.CreateMethodOverride(baseMethod); overriddenMethod.ImplementByBaseCall(baseMethod); PropertyInfo baseProperty = typeof(GenericClassWithAllKindsOfMembers <>).GetProperty("Property"); CustomPropertyEmitter overriddenProperty = classEmitter.CreatePropertyOverride(baseProperty); overriddenProperty.GetMethod = classEmitter.CreateMethodOverride(baseProperty.GetGetMethod()); overriddenProperty.GetMethod.ImplementByBaseCall(baseProperty.GetGetMethod()); EventInfo baseEvent = typeof(GenericClassWithAllKindsOfMembers <>).GetEvent("Event"); CustomEventEmitter overriddenEvent = classEmitter.CreateEventOverride(baseEvent); overriddenEvent.AddMethod = classEmitter.CreateMethodOverride(baseEvent.GetAddMethod()); overriddenEvent.AddMethod.ImplementByBaseCall(baseEvent.GetAddMethod()); overriddenEvent.RemoveMethod = classEmitter.CreateMethodOverride(baseEvent.GetRemoveMethod()); overriddenEvent.RemoveMethod.ImplementByBaseCall(baseEvent.GetRemoveMethod()); Type builtType = classEmitter.BuildType(); GenericClassWithAllKindsOfMembers <int> instance = (GenericClassWithAllKindsOfMembers <int>)Activator.CreateInstance(builtType.MakeGenericType(typeof(int))); instance.Method(5); Assert.That(instance.Property, Is.EqualTo(0)); instance.Event += delegate { return(0); }; instance.Event -= delegate { return(0); }; }
public void EventNamePreservedOnOverride() { var classEmitter = new CustomClassEmitter(Scope, "EventNamePreservedOnOverride", typeof(ClassWithAllKindsOfMembers), Type.EmptyTypes, TypeAttributes.Public | TypeAttributes.Class, false); CustomEventEmitter eventEmitter = classEmitter.CreateEventOverride(typeof(ClassWithAllKindsOfMembers).GetEvent("Event", _declaredInstanceBindingFlags)); eventEmitter.AddMethod = classEmitter.CreateMethodOverride(typeof(ClassWithAllKindsOfMembers).GetMethod("add_Event", _declaredInstanceBindingFlags)); eventEmitter.AddMethod.AddStatement(new ReturnStatement()); eventEmitter.RemoveMethod = classEmitter.CreateMethodOverride(typeof(ClassWithAllKindsOfMembers).GetMethod("remove_Event", _declaredInstanceBindingFlags)); eventEmitter.RemoveMethod.AddStatement(new ReturnStatement()); Type builtType = classEmitter.BuildType(); Assert.That(builtType.GetEvent("Event", _declaredInstanceBindingFlags), Is.Not.Null); }
public void CreateEventOverride() { var classEmitter = new CustomClassEmitter(Scope, "CreateEventOverride", typeof(ClassWithAllKindsOfMembers), Type.EmptyTypes, TypeAttributes.Public | TypeAttributes.Class, false); CustomEventEmitter eventEmitter = classEmitter.CreateEventOverride(typeof(ClassWithAllKindsOfMembers).GetEvent("Event", _declaredInstanceBindingFlags)); eventEmitter.AddMethod = classEmitter.CreateMethodOverride(typeof(ClassWithAllKindsOfMembers).GetMethod("add_Event", _declaredInstanceBindingFlags)); eventEmitter.AddMethod.AddStatement(new ReturnStatement()); eventEmitter.RemoveMethod = classEmitter.CreateMethodOverride(typeof(ClassWithAllKindsOfMembers).GetMethod("remove_Event", _declaredInstanceBindingFlags)); eventEmitter.RemoveMethod.AddStatement(new ReturnStatement()); Type builtType = classEmitter.BuildType(); var instance = (ClassWithAllKindsOfMembers)Activator.CreateInstance(builtType); EventHandler eventHandler = delegate { }; instance.Event += eventHandler; instance.Event -= eventHandler; }