Move 0.70 TypeScript over

.eslintrc.js

@@ -71,5 +71,17 @@ module.exports = {
         jest: true,
       },
     },
+    {
+      files: ['types/**/*.{ts,tsx}'],
+      parser: '@typescript-eslint/parser',
+      plugins: ['@typescript-eslint/eslint-plugin'],
+      rules: {
+        '@typescript-eslint/no-unused-vars': 'off',
+        'react-native/no-inline-styles': 'off',
+        '@typescript-eslint/no-shadow': 'off',
+        'no-self-compare': 'off',
+        'react/self-closing-comp': 'off',
+      },
+    },
   ],
 };

package.json

@@ -9,6 +9,7 @@
   "engines": {
     "node": ">=14"
   },
+  "types": "types",
   "jest-junit": {
     "outputDirectory": "reports/junit",
     "outputName": "js-test-results.xml"
@@ -81,8 +82,8 @@
     "shellcheck": "./scripts/circleci/analyze_scripts.sh",
     "clang-format": "clang-format -i --glob=*/**/*.{h,cpp,m,mm}",
     "format": "npm run prettier && npm run clang-format",
-    "prettier": "prettier --write \"./**/*.{js,md,yml}\"",
-    "format-check": "prettier --list-different \"./**/*.{js,md,yml}\"",
+    "prettier": "prettier --write \"./**/*.{js,md,yml,ts,tsx}\"",
+    "format-check": "prettier --list-different \"./**/*.{js,md,yml,ts,tsx}\"",
     "update-lock": "npx yarn-deduplicate",
     "docker-setup-android": "docker pull reactnativecommunity/react-native-android:5.2",
     "docker-build-android": "docker build -t reactnativeci/android -f .circleci/Dockerfiles/Dockerfile.android .",
@@ -93,7 +94,8 @@
     "test-android-instrumentation": "yarn run docker-build-android && yarn run test-android-run-instrumentation",
     "test-android-unit": "yarn run docker-build-android && yarn run test-android-run-unit",
     "test-android-e2e": "yarn run docker-build-android && yarn run test-android-run-e2e",
-    "test-ios": "./scripts/objc-test.sh test"
+    "test-ios": "./scripts/objc-test.sh test",
+    "test-typescript": "dtslint types"
   },
   "workspaces": [
     "packages/*",

repo-config/package.json

@@ -47,7 +47,11 @@
     "shelljs": "^0.8.5",
     "signedsource": "^1.0.0",
     "ws": "^6.1.4",
-    "yargs": "^15.3.1"
+    "yargs": "^15.3.1",
+    "@definitelytyped/dtslint": "^0.0.127",
+    "@types/react": "^18.0.18",
+    "typescript": "^4.8.2",
+    "@typescript-eslint/parser": "^5.36.2"
   },
   "devDependencies": {
     "mock-fs": "^5.1.4"

types/BatchedBridge.d.ts

@@ -0,0 +1,32 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+interface SpyData {
+  type: number;
+  module?: string | undefined;
+  method: string | number;
+  args: any[];
+}
+
+declare class MessageQueue {
+  static spy(spyOrToggle: boolean | ((data: SpyData) => void)): void;
+
+  getCallableModule(name: string): Object;
+  registerCallableModule(name: string, module: Object): void;
+  registerLazyCallableModule(name: string, factory: () => Object): void;
+}
+
+declare module 'react-native/Libraries/BatchedBridge/BatchedBridge' {
+  const BatchedBridge: MessageQueue;
+  export default BatchedBridge;
+}
+
+declare module 'react-native/Libraries/BatchedBridge/MessageQueue' {
+  export default MessageQueue;
+}

types/Codegen.d.ts

@@ -0,0 +1,74 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+declare module 'react-native/Libraries/Utilities/codegenNativeCommands' {
+  export interface Options<T extends string> {
+    readonly supportedCommands: ReadonlyArray<T>;
+  }
+
+  function codegenNativeCommands<T extends object>(
+    options: Options<keyof T extends string ? keyof T : never>,
+  ): T;
+
+  export default codegenNativeCommands;
+}
+
+declare module 'react-native/Libraries/Utilities/codegenNativeComponent' {
+  import type {HostComponent} from 'react-native';
+
+  export interface Options {
+    readonly interfaceOnly?: boolean;
+    readonly paperComponentName?: string;
+    readonly paperComponentNameDeprecated?: string;
+    readonly excludedPlatforms?: ReadonlyArray<'iOS' | 'android'>;
+  }
+
+  export type NativeComponentType<T> = HostComponent<T>;
+
+  function codegenNativeComponent<Props extends object>(
+    componentName: string,
+    options?: Options,
+  ): NativeComponentType<Props>;
+
+  export default codegenNativeComponent;
+}
+
+declare module 'react-native/Libraries/Types/CodegenTypes' {
+  import type {NativeSyntheticEvent} from 'react-native';
+
+  // Event types
+  // We're not using the PaperName, it is only used to codegen view config settings
+
+  export type BubblingEventHandler<
+    T,
+    PaperName extends string | never = never,
+  > = (event: NativeSyntheticEvent<T>) => void | Promise<void>;
+  export type DirectEventHandler<
+    T,
+    PaperName extends string | never = never,
+  > = (event: NativeSyntheticEvent<T>) => void | Promise<void>;
+
+  // Prop types
+  export type Double = number;
+  export type Float = number;
+  export type Int32 = number;
+  export type UnsafeObject = object;
+
+  type DefaultTypes = number | boolean | string | ReadonlyArray<string>;
+  // Default handling, ignore the unused value
+  // we're only using it for type checking
+  //
+  // TODO: (rickhanlonii) T44881457 If a default is provided, it should always be optional
+  //  but that is currently not supported in the codegen since we require a default
+
+  export type WithDefault<
+    Type extends DefaultTypes,
+    Value extends Type | string | undefined | null,
+  > = Type | undefined | null;
+}

types/Devtools.d.ts

@@ -0,0 +1,31 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+declare module 'react-native/Libraries/Core/Devtools/parseErrorStack' {
+  export type StackFrame = {
+    file: string;
+    methodName: string;
+    lineNumber: number;
+    column: number | null;
+  };
+
+  export interface ExtendedError extends Error {
+    framesToPop?: number | undefined;
+  }
+
+  export default function parseErrorStack(error: ExtendedError): StackFrame[];
+}
+
+declare module 'react-native/Libraries/Core/Devtools/symbolicateStackTrace' {
+  import {StackFrame} from 'react-native/Libraries/Core/Devtools/parseErrorStack';
+
+  export default function symbolicateStackTrace(
+    stack: ReadonlyArray<StackFrame>,
+  ): Promise<StackFrame[]>;
+}

types/LaunchScreen.d.ts

@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+// Adds the JSX elements used in the launch screen.
+
+declare module 'react-native/Libraries/NewAppScreen' {
+  export const Header: any;
+  export const LearnMoreLinks: any;
+  export const Colors: any;
+  export const DebugInstructions: any;
+  export const ReloadInstructions: any;
+}