LivelyKernel / LivelyKernel/lively.morphic

inspector opened on a morph break serialization of entire world

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Dominant language
JavaScript
Stars
13
Forks
1
PR merge metrics
No merged PRs in 30d

Description

```
Error saving world: Error: Error snapshotting morph: Cannot recreate morph from snapshot!
TypeError: Illegal constructor
at ClassHelper_restoreIfClassInstance_ (https://lively-next.org/lively.serializer2/class-helper.js:94:56)
at ClassPlugin_deserializeObject_ (https://lively-next.org/lively.serializer2/plugins.js:96:39)
at ObjectPool_plugin_deserializeObject_ (https://lively-next.org/lively.serializer2/object-pool.js:325:71)
at ObjectRef_recreateObjFromSnapshot_ (https://lively-next.org/lively.serializer2/object-pool.js:528:29)
at Function.ObjectRef_fromSnapshot_ (https://lively-next.org/lively.serializer2/object-pool.js:592:47)
at ObjectPool_readSnapshot_ (https://lively-next.org/lively.serializer2/object-pool.js:232:45)
at ObjectPool_resolveFromSnapshotAndId_ (https://lively-next.org/lively.serializer2/object-pool.js:245:20)
at Window.deserialize (https://lively-next.org/lively.serializer2/index.js:50:20)
at step2 (https://lively-next.org/lively.serializer2/index.js:60:42)
at
at Window.createMorphSnapshot (https://lively-next.org/lively.morphic/serialization.js:114:15)
at
```

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at lively.morphic/serialization.js:114, where createMorphSnapshot leads into lively.serializer2/index.js and the stack reaches class-helper.js:94. Reproduce saving a world with the inspector open, then trace the Illegal constructor through plugins.js and object-pool.js. Done means the world saves without the snapshotting or morph recreation error.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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