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Summary:
TypeScript Parser changes to accomodate new emitUnion

Changelog: [Internal]

Differential Revision: D87412635

Summary:

Adding NumberTypeAnnotation to the Codegen Schema in order to obtain parity with String & Boolean which will be the Union types

Changelog: [Internal]

Differential Revision: D87374063
Summary:

Adding the generic type T UnionTypeAnnotation. This will be used later to create Unions of types String, Number & Boolean.

Changelog: [Internal]

Differential Revision: D87374445
Summary:

Introduce NumberLiteralType & StringLiteralType in TypeScript just as they already exist in Flow here:

https://www.internalfb.com/code/fbsource/[9b248afa0cd5548b81dd44f1042b230e6069432b]/xplat/js/react-native-github/packages/react-native-codegen/src/CodegenSchema.js?lines=41-53

Changelog: [Internal]

Differential Revision: D87375511
Summary:
TupleTypeAnnotation is added for parity with UnionTypeAnnotation
to support future implementation. Currently limited to String and Number literals as per: https://docs.google.com/document/d/1pTBMOEIov5n5-0L9z925XPvGX1YxlmI6n6FJvd0oXtE/edit?tab=t.0#heading=h.fhe5py9plytd

Differential Revision: D87383455
Summary:

Introduce `BooleanLiteralTypeAnnotation` in Flow & TypeScript to match the existing `StringLiteralTypeAnnotation` & `NumberLiteralTypeAnnotation` since Unions will be supporting Booleans along with String & Number

Changelog: [Internal]

Differential Revision: D87384473
Summary:

Following types will be supported in Union currently:

1. Number : NumberType + NumberLiteralType
2. Boolean : BooleanType + BooleanLiteralType
3. String : StringType + StringLiteralType
4. Object: NativeModuleObjectType

These are the only ones that exist today as per : 

https://docs.google.com/document/d/1pTBMOEIov5n5-0L9z925XPvGX1YxlmI6n6FJvd0oXtE/edit?tab=t.0#heading=h.fhe5py9plytd

Changelog: [Internal]

Differential Revision: D87384995
Summary:

Adding `NumberLiteralUnionTypeAnnotation` & `BooleanLiteralUnionTypeAnnotation` to Flow & TypeScript so that they are in parity with other Union type : `StringLiteralUnionTypeAnnotation`. Number & Boolean aren't used anywhere yet.

Changelog: [Internal]

Differential Revision: D87386144
…n in Flow (facebook#54593)

Summary:

Just as `NumberLiteralTypeAnnotation` was part of the `NativeModuleBaseTypeAnnotation` in Flow, adding the `BooleanLiteralTypeAnnotation`. Similarly adding it to the StructCollector since this is needed for Flow exhaustiveness check in generators/modules in D87410022

NOTE: Didn't add this change for TS as both `NumberLiteralTypeAnnotation` was not included as part of `NativeModuleBaseTypeAnnotation` in TS, also the generators were not failing in TS for this.

Changelog: [Internal]

Differential Revision: D87392274
Summary:

Refactoring `NativeModuleUnionTypeAnnotation` to use the newly introduced `NativeModuleUnionTypeAnnotationMemberType`

Changelog: [Internal]

Differential Revision: D87386775
Summary:

Now that UnionTypeAnnotation itself supports both the member types and value, we can fold the  StringLiteralUnionTypeAnnotation into the UnionTypeAnnotation and un-special case the StringLiteralUnionTypeAnnotation

Changelog: [Internal]

Differential Revision: D87388948
…move the special handling of StringLiteralUnionType (facebook#54596)

Summary:

- Getting rid of emitStringLiteralUnion logic in parser
- Modifying the emitUnion logic in parser

Changelog: [Internal]

Differential Revision: D87412493
Summary:

Flow Parser changes to accomodate the new emitUnion

Changelog: [Internal]

Differential Revision: D87412532
Summary:
TypeScript Parser changes to accomodate new emitUnion

Changelog: [Internal]

Differential Revision: D87412635
@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 Nov 19, 2025
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meta-codesync bot commented Nov 19, 2025

@arushikesarwani94 has exported this pull request. If you are a Meta employee, you can view the originating Diff in D87412635.

arushikesarwani94 added a commit to arushikesarwani94/react-native that referenced this pull request Nov 19, 2025
Summary:

TypeScript Parser changes to accomodate new emitUnion

Changelog: [Internal]

Differential Revision: D87412635
arushikesarwani94 added a commit to arushikesarwani94/react-native that referenced this pull request Nov 19, 2025
Summary:

TypeScript Parser changes to accomodate new emitUnion

Changelog: [Internal]

Differential Revision: D87412635
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