internal static NativeArray <ComponentType> GetNonzeroComponentTypes(this ArchetypeChunk self, Allocator allocator)
{
var nonZeroTypeCount = self.GetNonZeroSizedTypeCount();
var result = new NativeArray <ComponentType>(nonZeroTypeCount, allocator);
for (int i = 0; i < nonZeroTypeCount; i++)
{
// nonzero types are stored at the beginning followed by all zero-sized types
result[i] = self.GetComponentTypeAtIndex(i);
}
return(result);
}