microsoft / microsoft/react-native-windows

react-native codegen GUID and symbol types

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#14,656 2 comments 0 reactions 0 assignees View on GitHub

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Area: Turbo Modules enhancement Needs: Dev Design New Architecture
Dominant language
C++
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Summary

These two types would be ergonomically convenient for TurboModules -- there's ways around through strings and type workarounds but it's cumbersome to do that.

Motivation

The GUID type would be convenient type to avoid parsing/constructing strings in native code manually.

The symbol type would be convenient as an opaque type, similar to PlatformColor when referencing brushes or high contrast color types without openly exposing the details of the JS-side representation for manipulation.

Basic Example

The symbol type I'm working around with my own type written as:

type OpaqueFooTypeDef = symbol & { __TYPE__: "Foo" };
export type OpaqueFooType =
  | OpaqueFooTypeDef
  | OpaqueFooTypeDef;

though I also can't export that type and share it across module definitions so that's a little annoying.

Open Questions

No response

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Research direction

The issue names no files, tests, or entry points. Start by tracing React Native Windows TurboModule codegen type definitions and existing handling for opaque or platform-specific types. Done would require an agreed representation for GUID and symbol types, support across module definitions, and tests covering generated native code.

Written by the indexing model from the issue text.

Assessment

Tech stack
react-native, typescript
Domain
mobile-dev, tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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