🐛 Use cloneDeep to keep reference linked

in serializeTypeReferenceNode, by using `cloneDeep` instead of
`clone`, the cloned references are all affected by future
transformations like renames.

Author: wtho

package.json

@@ -56,6 +56,7 @@
     "@babel/core": "^7.6.4",
     "@babel/plugin-proposal-class-properties": "^7.5.5",
     "@babel/plugin-proposal-decorators": "^7.6.0",
+    "@babel/plugin-transform-modules-commonjs": "^7.10.4",
     "@babel/preset-env": "^7.6.3",
     "@babel/preset-typescript": "^7.6.0",
     "@babel/template": "^7.6.0",

src/metadata/serializeType.ts

@@ -80,7 +80,7 @@ function serializeTypeReferenceNode(
       t.stringLiteral('undefined')
     ),
     t.identifier('Object'),
-    t.clone(reference)
+    t.cloneDeep(reference)
   );
 }
 

test/__modules__/member-expression/code.js

@@ -0,0 +1,8 @@
+import AWS from 'aws-sdk';
+
+@Injectable()
+export class SomeService {
+ constructor(
+    @Inject('aws.s3') private s3client: AWS.S3,
+  ) {}
+}

test/__modules__/member-expression/output.js

@@ -0,0 +1,22 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.SomeService = void 0;
+
+var _awsSdk = _interopRequireDefault(require("aws-sdk"));
+
+var _dec, _dec2, _dec3, _dec4, _class;
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+let SomeService = (_dec = Injectable(), _dec2 = function (target, key) {
+  return Inject('aws.s3')(target, undefined, 0);
+}, _dec3 = Reflect.metadata("design:type", Function), _dec4 = Reflect.metadata("design:paramtypes", [typeof _awsSdk.default.S3 === "undefined" ? Object : _awsSdk.default.S3]), _dec(_class = _dec2(_class = _dec3(_class = _dec4(_class = class SomeService {
+  constructor(s3client) {
+    this.s3client = s3client;
+  }
+
+}) || _class) || _class) || _class) || _class);
+exports.SomeService = SomeService;

test/module.spec.ts

@@ -0,0 +1,17 @@
+import path from 'path';
+import { create } from 'babel-test';
+
+import { toMatchFile } from 'jest-file-snapshot';
+expect.extend({ toMatchFile });
+
+const { fixtures } = create({
+  presets: [['@babel/preset-typescript', { allExtensions: true }]],
+  plugins: [
+    require.resolve('../src/plugin'),
+    ['@babel/plugin-proposal-decorators', { legacy: true }],
+    ['@babel/plugin-proposal-class-properties', { loose: true }],
+    '@babel/plugin-transform-modules-commonjs'
+  ]
+});
+
+fixtures('emit metadata', path.join(__dirname, '__modules__'));