public static IEnumerable <IRegistry> GetRegistries(IComponent component)
{
if (component == null)
{
throw new ArgumentNullException(nameof(component));
}
foreach (var componentType in ComponentTypeUtility.GetManagedComponentTypes(component.GetType()))
{
yield return(GetRegistry(componentType));
}
}
private static IEnumerable <Type> FetchRequiredComponentTypes(Type componentType)
{
if (!typeof(Component).IsAssignableFrom(componentType))
{
throw new ArgumentException("Component type is not derived from component.", nameof(componentType));
}
foreach (var type in ComponentTypeUtility.GetManagedComponentTypes(componentType))
{
foreach (var attribute in type.GetCustomAttributes(typeof(RuntimeRequireComponentAttribute), true).Cast <RuntimeRequireComponentAttribute>())
{
var requiredComponentType = attribute.componentType;
if (!typeof(Component).IsAssignableFrom(requiredComponentType))
{
Debug.LogWarning($"Required component type '{requiredComponentType}' is not derived from component, ignoring.");
continue;
}
yield return(requiredComponentType);
}
}
}