OLD | NEW |
| (Empty) |
1 // Copyright 2014 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 Debug = debug.Debug; | |
8 | |
9 function assertIteratorResult(value, done, result) { | |
10 assertEquals({value: value, done: done}, result); | |
11 } | |
12 | |
13 function RunTest(formals_and_body, args, value1, value2) { | |
14 // A null listener. It isn't important what the listener does. | |
15 function listener(event, exec_state, event_data, data) { | |
16 } | |
17 | |
18 // Create the generator function outside a debugging context. It will probably | |
19 // be lazily compiled. | |
20 var gen = (function*(){}).constructor.apply(null, formals_and_body); | |
21 | |
22 // Instantiate the generator object. | |
23 var obj = gen.apply(null, args); | |
24 | |
25 // Advance to the first yield. | |
26 assertIteratorResult(value1, false, obj.next()); | |
27 | |
28 // Enable the debugger, which should force recompilation of the generator | |
29 // function and relocation of the suspended generator activation. | |
30 Debug.setListener(listener); | |
31 | |
32 // Add a breakpoint on line 3 (the second yield). | |
33 var bp = Debug.setBreakPoint(gen, 3); | |
34 | |
35 // Check that the generator resumes and suspends properly. | |
36 assertIteratorResult(value2, false, obj.next()); | |
37 | |
38 // Disable debugger -- should not force recompilation. | |
39 Debug.clearBreakPoint(bp); | |
40 Debug.setListener(null); | |
41 | |
42 // Run to completion. | |
43 assertIteratorResult(undefined, true, obj.next()); | |
44 } | |
45 | |
46 function prog(a, b, c) { | |
47 return a + ';\n' + 'yield ' + b + ';\n' + 'yield ' + c; | |
48 } | |
49 | |
50 // Simple empty local scope. | |
51 RunTest([prog('', '1', '2')], [], 1, 2); | |
52 | |
53 RunTest([prog('for (;;) break', '1', '2')], [], 1, 2); | |
54 | |
55 RunTest([prog('while (0) foo()', '1', '2')], [], 1, 2); | |
56 | |
57 RunTest(['a', prog('var x = 3', 'a', 'x')], [1], 1, 3); | |
58 | |
59 RunTest(['a', prog('', '1', '2')], [42], 1, 2); | |
60 | |
61 RunTest(['a', prog('for (;;) break', '1', '2')], [42], 1, 2); | |
OLD | NEW |