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It is not possible for state to be null #1312

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lucacasonato opened this issue Jun 17, 2020 · 3 comments · Fixed by #1302
Closed

It is not possible for state to be null #1312

lucacasonato opened this issue Jun 17, 2020 · 3 comments · Fixed by #1302
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@felangel @narcodico
Labels
breaking change Enhancement candidate would introduce a breaking change enhancement New feature or request pkg:bloc This issue is related to the bloc package
Projects
bloc
Milestone
bloc-v5.0.0

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@lucacasonato
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Describe the bug
It seems that at the moment bloc does not allow the state (initial or current) to be null. If either of them are null, this error occurs: Unhandled error 'package:bloc/src/transition.dart': Failed assertion: line 25 pos 16: 'currentState != null': is not true..

To Reproduce

  1. Create a Bloc component with an initial state of null.
  2. Yield any object in mapEventToState.
  3. See error

Expected behavior
I expect to be able to use null as a valid current state.
@narcodico
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Contributor

Hi @lucacasonato 👋

This is something that is already addressed in the new version of bloc package and will be available in v5.0.0. 👍

@lucacasonato
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Awesome! Thanks for the quick response 🚀

Is there an ETA for the 5.0.0 release? I guess for now I can just import master via the git URL in my pubspec 😄

@felangel
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@lucacasonato I'm aiming to have 5.0.0-dev published by end of week 👍

@felangel felangel added breaking change Enhancement candidate would introduce a breaking change pkg:bloc This issue is related to the bloc package labels Jun 17, 2020
@felangel felangel added this to To do in bloc via automation Jun 17, 2020
@felangel felangel added this to the bloc-v5.0.0 milestone Jun 17, 2020
@felangel felangel moved this from To do to In progress in bloc Jun 17, 2020
@felangel felangel added the enhancement New feature or request label Jun 17, 2020
This was referenced Jun 21, 2020
Merged
Closed
Closed
bloc automation moved this from In progress to Done Jul 2, 2020
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Assignees

@felangel felangel

@narcodico narcodico

Labels
breaking change Enhancement candidate would introduce a breaking change enhancement New feature or request pkg:bloc This issue is related to the bloc package
Projects
bloc
  
Done
Milestone
bloc-v5.0.0
Development

Successfully merging a pull request may close this issue.

feat!: v5.0.0 felangel/bloc
3 participants
@lucacasonato @felangel @narcodico