svelte

Commit Graph

Author	SHA1	Message	Date
Dominic Gannaway	56f41e1d96	fix: ensure signal graph is consistent before triggering $inspect signals (#13153 ) Fixes #13146. Sync effects are not possible with Svelte 5's push-pull system because they can make can break the reactive graph – which is also why we don't permit writes within a derived too. The same problem is occurring here, as inspect effects are run sync – they are actually happening as part of an existing derived – which means they're a bit like writes in a derived and can cause tearing to the reactive signal graph. To avoid this we can call flushSync just before invoking these effects, as that should ensure the graph is made consistent again. Also another issue I found was that we don't "reset" the inspect_effects Set when we enter a derived – which we should as a derived can create it's own local state that should have no bearing on the parent inspect effect.	1 year ago

Author

SHA1

Message

Date

Dominic Gannaway

56f41e1d96

fix: ensure signal graph is consistent before triggering $inspect signals (#13153 )

Fixes #13146.

Sync effects are not possible with Svelte 5's push-pull system because they can make can break the reactive graph – which is also why we don't permit writes within a derived too. The same problem is occurring here, as inspect effects are run sync – they are actually happening as part of an existing derived – which means they're a bit like writes in a derived and can cause tearing to the reactive signal graph. To avoid this we can call flushSync just before invoking these effects, as that should ensure the graph is made consistent again.

Also another issue I found was that we don't "reset" the inspect_effects Set when we enter a derived – which we should as a derived can create it's own local state that should have no bearing on the parent inspect effect.

1 Commits (svelte@5.0.0-next.250)