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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 --allow-natives-syntax | |
| 6 | |
| 7 Debug = debug.Debug | |
| 8 | |
| 9 var exception = null; | |
| 10 var frame_depth = 10; | |
| 11 | |
| 12 function listener(event, exec_state, event_data, data) { | |
| 13 if (event != Debug.DebugEvent.Break) return; | |
| 14 try { | |
| 15 assertEquals(frame_depth, exec_state.frameCount()); | |
| 16 assertTrue(/\/\/ Break$/.test(exec_state.frame(0).sourceLineText())); | |
| 17 assertEquals(12 - frame_depth, exec_state.frame(0).evaluate("x").value()); | |
| 18 frame_depth--; | |
| 19 } catch (e) { | |
| 20 exception = e; | |
| 21 print(e + e.stack); | |
| 22 } | |
| 23 } | |
| 24 | |
| 25 function ChooseCode(f, x) { | |
| 26 if (x == 1) { | |
| 27 Debug.setBreakPoint(factorial, 4); | |
| 28 } | |
| 29 switch (x % 2) { | |
| 30 case 0: | |
| 31 %BaselineFunctionOnNextCall(f); | |
| 32 break; | |
| 33 case 1: | |
| 34 %InterpretFunctionOnNextCall(f); | |
| 35 break; | |
| 36 } | |
| 37 } | |
| 38 | |
| 39 function factorial(x) { | |
| 40 ChooseCode(factorial, x); | |
| 41 if (x == 1) return 1; | |
| 42 var factor = factorial(x - 1); | |
| 43 return x * factor; // Break | |
| 44 } | |
| 45 | |
| 46 Debug.setListener(listener); | |
| 47 | |
| 48 assertEquals(3628800, factorial(10)); | |
| 49 | |
| 50 Debug.setListener(null); | |
| 51 assertNull(exception); | |
| 52 assertEquals(1, frame_depth); | |
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