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| 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 --harmony-generators |
| 6 |
| 7 Debug = debug.Debug |
| 8 |
| 9 var debug_step = 0; |
| 10 var failure = null; |
| 11 |
| 12 function listener(event, exec_state, event_data, data) { |
| 13 if (event != Debug.DebugEvent.Break) return; |
| 14 try { |
| 15 if (debug_step == 0) { |
| 16 assertEquals(1, exec_state.frame(0).evaluate('a').value()); |
| 17 assertEquals(3, exec_state.frame(0).evaluate('b').value()); |
| 18 exec_state.frame(0).evaluate("a = 4").value(); |
| 19 debug_step++; |
| 20 } else { |
| 21 assertEquals(4, exec_state.frame(0).evaluate('a').value()); |
| 22 assertEquals(3, exec_state.frame(0).evaluate('b').value()); |
| 23 exec_state.frame(0).evaluate("b = 5").value(); |
| 24 } |
| 25 } catch (e) { |
| 26 failure = e; |
| 27 } |
| 28 } |
| 29 |
| 30 Debug.setListener(listener); |
| 31 |
| 32 function* generator(a, b) { |
| 33 var b = 3; // Shadows a parameter. |
| 34 debugger; |
| 35 yield a; |
| 36 yield b; |
| 37 debugger; |
| 38 return b; |
| 39 } |
| 40 |
| 41 var foo = generator(1, 2); |
| 42 |
| 43 assertEquals(4, foo.next().value); |
| 44 assertEquals(3, foo.next().value); |
| 45 assertEquals(5, foo.next().value); |
| 46 assertNull(failure); |
| 47 |
| 48 Debug.setListener(null); |
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