[Codegen]: Extract contents of the case 'BooleanTypeAnnotation' into a single emitBoolean function

packages/react-native-codegen/src/parsers/__tests__/parsers-primitives-test.js

@@ -0,0 +1,40 @@
+/**
+ * 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.
+ *
+ * @flow strict-local
+ * @format
+ * @oncall react_native
+ */
+
+'use-strict';
+
+const {emitBoolean} = require('../parsers-primitives.js');
+
+describe('emitBoolean', () => {
+  describe('when nullable is true', () => {
+    it('returns nullable type annotation', () => {
+      const result = emitBoolean(true);
+      const expected = {
+        type: 'NullableTypeAnnotation',
+        typeAnnotation: {
+          type: 'BooleanTypeAnnotation',
+        },
+      };
+
+      expect(result).toEqual(expected);
+    });
+  });
+  describe('when nullable is false', () => {
+    it('returns non nullable type annotation', () => {
+      const result = emitBoolean(false);
+      const expected = {
+        type: 'BooleanTypeAnnotation',
+      };
+
+      expect(result).toEqual(expected);
+    });
+  });
+});

packages/react-native-codegen/src/parsers/flow/modules/index.js

@@ -33,6 +33,7 @@ const {
   isModuleRegistryCall,
 } = require('../utils.js');
 const {unwrapNullable, wrapNullable} = require('../../parsers-commons');
+const {emitBoolean} = require('../../parsers-primitives');
 const {
   IncorrectlyParameterizedFlowGenericParserError,
   MisnamedModuleFlowInterfaceParserError,
@@ -362,9 +363,7 @@ function translateTypeAnnotation(
       });
     }
     case 'BooleanTypeAnnotation': {
-      return wrapNullable(nullable, {
-        type: 'BooleanTypeAnnotation',
-      });
+      return emitBoolean(nullable);
     }
     case 'NumberTypeAnnotation': {
       return wrapNullable(nullable, {

packages/react-native-codegen/src/parsers/parsers-primitives.js

@@ -0,0 +1,25 @@
+/**
+ * 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
+ * @flow strict
+ */
+
+'use strict';
+
+import type {BooleanTypeAnnotation, Nullable} from '../CodegenSchema';
+
+const {wrapNullable} = require('./parsers-commons');
+
+function emitBoolean(nullable: boolean): Nullable<BooleanTypeAnnotation> {
+  return wrapNullable(nullable, {
+    type: 'BooleanTypeAnnotation',
+  });
+}
+
+module.exports = {
+  emitBoolean,
+};

packages/react-native-codegen/src/parsers/typescript/modules/index.js

@@ -33,6 +33,7 @@ const {
   isModuleRegistryCall,
 } = require('../utils.js');
 const {unwrapNullable, wrapNullable} = require('../../parsers-commons');
+const {emitBoolean} = require('../../parsers-primitives');
 const {
   IncorrectlyParameterizedTypeScriptGenericParserError,
   MisnamedModuleTypeScriptInterfaceParserError,
@@ -397,9 +398,7 @@ function translateTypeAnnotation(
       });
     }
     case 'TSBooleanKeyword': {
-      return wrapNullable(nullable, {
-        type: 'BooleanTypeAnnotation',
-      });
+      return emitBoolean(nullable);
     }
     case 'TSNumberKeyword': {
       return wrapNullable(nullable, {