public static List <Type> FindTypes(TypeConstraintContext constraint)
{
#if UNITY_2019_2_OR_NEWER
var parentType = constraint.TargetType;
var typesCache = TypeCache.GetTypesDerivedFrom(parentType);
var typesList = typesCache.ToList();
typesList.Add(parentType);
for (var i = typesList.Count - 1; i >= 0; i--)
{
var type = typesList[i];
if (constraint.IsSatisfied(type))
{
continue;
}
typesList.RemoveAt(i);
}
#else
var typesList = new List <Type>();
var assemblies = AppDomain.CurrentDomain.GetAssemblies();
foreach (var assembly in assemblies)
{
typesList.AddRange(FindTypes(constraint, assembly));
}
typesList.Sort((a, b) => a.FullName.CompareTo(b.FullName));
#endif
return(typesList);
}
public static List <Type> FindTypes(TypeConstraintContext constraint, Assembly assembly)
{
var types = new List <Type>();
foreach (var type in assembly.GetTypes())
{
if (!constraint.IsSatisfied(type))
{
continue;
}
types.Add(type);
}
return(types);
}
public static TypesCachedCollection GetCollection(TypeConstraintContext constraint)
{
var key = constraint.GetHashCode();
if (cachedCollections.TryGetValue(key, out var collection))
{
return(collection);
}
var parentType = constraint.TargetType;
if (parentType == null)
{
return(new TypesCachedCollection());
}
var typesList = FindTypes(constraint);
return(cachedCollections[key] = new TypesCachedCollection(typesList));
}