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https://github.com/facebook/react-native.git
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Tim Yung
5242ad931b
Summary: Adds `RootTag` as a valid type for arguments and return types in TurboModules (on both Android and iOS). This will enable us to change `RootTag` into an opaque type. There are two compelling reasons to do this: - JavaScript will no longer be able to safely depend on `RootTag` being a number (which means we can change this in the future). - Call sites using `unstable_RootTagContext` will can get a `RootTag`, but call sites using the legacy `context.rootTag` will not. This means the opaque type will give us a strategy for migrating away from legacy context and eventually making `unstable_RootTagContext` the only way to access `RootTag`. Changelog: [Internal] (Note: this ignores all push blocking failures!) Reviewed By: RSNara Differential Revision: D21127170 fbshipit-source-id: baec9d7ad17b2f8c4527f1a84f604fc0d28b97eb
39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow strict
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* @format
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*/
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'use strict';
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/**
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* NOTE: This is React Native specific export type.
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*
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* DEPRECATED_RCTExport is an interface type that allows native code generation
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* for React Native native modules. It exists as a hint to the codegen tool that
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* any interface that extends it needs to be codegen'ed. Example usage:
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*
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* export interface RCTFoobar extends DEPRECATED_RCTExport<void> {}
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*
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* Native definition for RCTFoobar will then be generated.
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*
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* The type param T is a placeholder for future codegen hinting, like versioning
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* information, native base classes, etc. For now, simply use `void` type as
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* there's nothing to give hint about.
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*
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* NOTE: This export is deprecated. Please use TurboModule.
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*/
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// eslint-disable-next-line no-unused-vars
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export interface DEPRECATED_RCTExport<T: void = void> {
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+getConstants?: () => {...};
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}
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export interface TurboModule extends DEPRECATED_RCTExport<void> {}
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export type {RootTag} from '../ReactNative/RootTag.js';
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