Serialization - LivelyKernel/lively.next GitHub Wiki

What gets serialized

• Morphs in the world get serialized, by serializing their properties
• To save custom morph properties, they need to be defined in the properties getter. More info

What happens when saving

• Saving creates a snapshot
• The serializer dissolves circular dependencies
• When serializing was successful, lively tries to deserialize the snapshot
• Only if this works saving was successful

How to make custom behavior while saving

• one can use methods like __after_deserialize__ and similar as hooks (_additionaly_serialize__)
• Use addFn('propertyName' , propertyValue) to add additional properties, this will dissolve circular dependencies
• just adding snapshot.prop.propname = propValue will work but not check whether there are circular dependencies

Notes

Some properties can not be saved

• WeakMaps, WeakRefs
• use the hooks to make custom data structures to save them