|  | // Copyright (c) 2021, 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. | 
|  |  | 
|  | // Test script for print_object_layout_test.dart | 
|  |  | 
|  | class ClassA { | 
|  | String fieldA1 = 'a'; | 
|  | int fieldA2 = 1; | 
|  | } | 
|  |  | 
|  | class ClassB extends ClassA { | 
|  | String fieldB1 = 'b'; | 
|  | int fieldB2 = 2; | 
|  | int unusedB3 = 3; | 
|  | static int staticB4 = 4; | 
|  | } | 
|  |  | 
|  | @pragma('vm:never-inline') | 
|  | useFields(ClassB obj) => | 
|  | "${obj.fieldA1}${obj.fieldA2}${obj.fieldB1}${obj.fieldB2}${ClassB.staticB4}"; | 
|  |  | 
|  | main() { | 
|  | useFields(ClassB()); | 
|  | } |