|  | // Copyright (c) 2011, 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. | 
|  | // Dart test program testing NPE within string interpolation. | 
|  |  | 
|  | import "package:expect/expect.dart"; | 
|  |  | 
|  | class A { | 
|  | A(String this.name) {} | 
|  | String name; | 
|  | } | 
|  |  | 
|  | main() { | 
|  | A a = new A("Kermit"); | 
|  | var s = "Hello Mr. ${a.name}"; | 
|  | Expect.stringEquals("Hello Mr. Kermit", s); | 
|  | a = null; | 
|  | try { | 
|  | s = "Hello Mr. ${a.name}"; | 
|  | } on NoSuchMethodError catch (e) { | 
|  | return; | 
|  | } | 
|  | Expect.fail("NoSuchMethodError not thrown"); | 
|  | } |