Skip to content

Transform $ReadOnly to Readonly 38/n #55067

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Closed
marcoww6 wants to merge 2 commits into from
Closed

Transform $ReadOnly to Readonly 38/n #55067

marcoww6 wants to merge 2 commits into from
+856 −863

Conversation

@marcoww6
Copy link
Contributor

@marcoww6 marcoww6 commented Jan 6, 2026

Differential Revision: D90146229

Marco Wang and others added 2 commits January 6, 2026 14:19
@meta-codesync
Transform $ReadOnly to Readonly 37/n
5065319 
Summary:
We are transforming the following utility types to be more consistent with typescript and better AI integration:

* `$NonMaybeType` -> `NonNullable`
* `$ReadOnly` -> `Readonly`
* `$ReadOnlyArray` -> `ReadonlyArray`
* `$ReadOnlyMap` -> `ReadonlyMap`
* `$ReadOnlySet` -> `ReadonlySet`
* `$Keys` -> `keyof`
* `$Values` -> `Values`
* `mixed` -> `unknown`

See details in https://fb.workplace.com/groups/flowlang/permalink/1837907750148213/.

drop-conflicts

Command:

`js1 flow-runner codemod flow/transformUtilityType --legacy-type='$ReadOnly'`

Differential Revision: D90146145
@marcoww6 @meta-codesync
Transform $ReadOnly to Readonly 38/n
b8b5756 
Differential Revision: D90146229
@meta-cla meta-cla bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jan 6, 2026
@meta-codesync
Copy link

meta-codesync bot commented Jan 6, 2026

@marcoww6 has exported this pull request. If you are a Meta employee, you can view the originating Diff in D90146229.

@meta-codesync meta-codesync bot closed this in 41efc3b Jan 7, 2026
@react-native-bot
Copy link
Collaborator

react-native-bot commented Jan 7, 2026

This pull request was successfully merged by @marcoww6 in 41efc3b

When will my fix make it into a release? | How to file a pick request?

@react-native-bot react-native-bot added the Merged This PR has been merged. label Jan 7, 2026
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

No reviews

Assignees

No one assigned

Labels

CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. fb-exported Merged This PR has been merged. meta-exported p: Facebook Partner: Facebook Partner

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

3 participants

@marcoww6 @react-native-bot @facebook-github-bot