|  | // Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file | 
|  | // for details. All rights reserved. Use of this source code is governed by a | 
|  | // BSD-style license that can be found in the LICENSE file. | 
|  |  | 
|  | /// Regression test for https://github.com/dart-lang/sdk/issues/54375. | 
|  | /// | 
|  | /// Records should support named elements with the names 'shape', 'values', | 
|  | /// 'constructor', and 'prototype'. | 
|  |  | 
|  | import 'package:expect/expect.dart'; | 
|  |  | 
|  | @pragma('dart2js:noInline') | 
|  | @pragma('dart2js:assumeDynamic') | 
|  | confuse(x) { | 
|  | return x; | 
|  | } | 
|  |  | 
|  | void main() { | 
|  | var r = (shape: 123); | 
|  | Expect.equals(123, r.shape); | 
|  | var d = confuse(r); | 
|  | Expect.equals(123, d.shape); | 
|  |  | 
|  | var r2 = (values: 'hello'); | 
|  | Expect.equals('hello', r2.values); | 
|  | d = confuse(r2); | 
|  | Expect.equals('hello', d.values); | 
|  |  | 
|  | var r3 = (constructor: Duration.zero); | 
|  | Expect.equals(Duration.zero, r3.constructor); | 
|  | d = confuse(r3); | 
|  | Expect.equals(Duration.zero, d.constructor); | 
|  |  | 
|  | var r4 = (prototype: null); | 
|  | Expect.equals(null, r4.prototype); | 
|  | d = confuse(r4); | 
|  | Expect.equals(null, d.prototype); | 
|  | } |