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1 // Copyright 2016 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 // | |
5 // Flags: --expose-debug-as debug | |
6 | |
7 var failure = null; | |
8 var args; | |
9 | |
10 function listener(event, exec_state, event_data, data) { | |
11 if (event != debug.Debug.DebugEvent.Break) return; | |
12 try { | |
13 args = exec_state.frame(0).evaluate('arguments').value(); | |
14 } catch (e) { | |
15 failure = e; | |
16 } | |
17 } | |
18 | |
19 debug.Debug.setListener(listener); | |
20 | |
21 function* gen(a, b) { | |
22 debugger; | |
23 yield a; | |
24 yield b; | |
25 } | |
26 | |
27 var foo = gen(1, 2); | |
28 | |
29 foo.next() | |
30 assertEquals(2, args.length); | |
31 assertEquals(undefined, args[0]); | |
32 assertEquals(undefined, args[1]); | |
33 | |
34 foo.next() | |
35 assertEquals(2, args.length); | |
36 assertEquals(undefined, args[0]); | |
37 assertEquals(undefined, args[1]); | |
38 | |
39 foo.next() | |
40 assertEquals(2, args.length); | |
41 assertEquals(undefined, args[0]); | |
42 assertEquals(undefined, args[1]); | |
43 | |
44 assertNull(failure); | |
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