[Codegen]: Extract contents of the case 'VoidTypeAnnotation' into a single emitVoid function

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

@@ -17,6 +17,7 @@ const {
   emitNumber,
   emitInt32,
   emitRootTag,
+  emitVoid,
   typeAliasResolution,
 } = require('../parsers-primitives.js');
 
@@ -150,6 +151,32 @@ describe('emitDouble', () => {
   });
 });
 
+describe('emitVoid', () => {
+  describe('when nullable is true', () => {
+    it('returns nullable type annotation', () => {
+      const result = emitVoid(true);
+      const expected = {
+        type: 'NullableTypeAnnotation',
+        typeAnnotation: {
+          type: 'VoidTypeAnnotation',
+        },
+      };
+
+      expect(result).toEqual(expected);
+    });
+  });
+  describe('when nullable is false', () => {
+    it('returns non nullable type annotation', () => {
+      const result = emitVoid(false);
+      const expected = {
+        type: 'VoidTypeAnnotation',
+      };
+
+      expect(result).toEqual(expected);
+    });
+  });
+});
+
 describe('typeAliasResolution', () => {
   const objectTypeAnnotation = {
     type: 'ObjectTypeAnnotation',

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

@@ -39,6 +39,7 @@ const {
   emitNumber,
   emitInt32,
   emitRootTag,
+  emitVoid,
   typeAliasResolution,
 } = require('../../parsers-primitives');
 const {
@@ -343,9 +344,7 @@ function translateTypeAnnotation(
       return emitNumber(nullable);
     }
     case 'VoidTypeAnnotation': {
-      return wrapNullable(nullable, {
-        type: 'VoidTypeAnnotation',
-      });
+      return emitVoid(nullable);
     }
     case 'StringTypeAnnotation': {
       return wrapNullable(nullable, {

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

@@ -21,6 +21,7 @@ import type {
   Int32TypeAnnotation,
   ReservedTypeAnnotation,
   ObjectTypeAnnotation,
+  VoidTypeAnnotation,
 } from '../CodegenSchema';
 import type {TypeAliasResolutionStatus} from './utils';
 
@@ -59,6 +60,12 @@ function emitDouble(nullable: boolean): Nullable<DoubleTypeAnnotation> {
   });
 }
 
+function emitVoid(nullable: boolean): Nullable<VoidTypeAnnotation> {
+  return wrapNullable(nullable, {
+    type: 'VoidTypeAnnotation',
+  });
+}
+
 function typeAliasResolution(
   typeAliasResolutionStatus: TypeAliasResolutionStatus,
   objectTypeAnnotation: ObjectTypeAnnotation<
@@ -119,5 +126,6 @@ module.exports = {
   emitInt32,
   emitNumber,
   emitRootTag,
+  emitVoid,
   typeAliasResolution,
 };

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

@@ -39,6 +39,7 @@ const {
   emitNumber,
   emitInt32,
   emitRootTag,
+  emitVoid,
   typeAliasResolution,
 } = require('../../parsers-primitives');
 const {
@@ -379,9 +380,7 @@ function translateTypeAnnotation(
       return emitNumber(nullable);
     }
     case 'TSVoidKeyword': {
-      return wrapNullable(nullable, {
-        type: 'VoidTypeAnnotation',
-      });
+      return emitVoid(nullable);
     }
     case 'TSStringKeyword': {
       return wrapNullable(nullable, {