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;
}
