Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2008 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | // Flags: --expose-debug-as debug |
| 29 | // Get the Debug object exposed from the debug context global object. |
| 30 | Debug = debug.Debug |
| 31 | |
| 32 | // Tests how debugger can step over not necessarily in the top frame. |
| 33 | |
| 34 | // Simple 3 functions, that protocol their execution state in global |
| 35 | // variable state. |
| 36 | var state; |
| 37 | |
| 38 | function f() { |
| 39 | var a = 1978; |
| 40 | for (state[2] = 0; state[2] < 3; state[2]++) { |
| 41 | void String(a); |
| 42 | } |
| 43 | } |
| 44 | function g() { |
| 45 | for (state[1] = 0; state[1] < 3; state[1]++) { |
| 46 | f(); |
| 47 | } |
| 48 | } |
| 49 | function h() { |
| 50 | state = [-1, -1, -1]; |
| 51 | for (state[0] = 0; state[0] < 3; state[0]++) { |
| 52 | g(); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | function TestCase(expected_final_state) { |
| 57 | var listener_exception = null; |
| 58 | var state_snapshot; |
| 59 | var listener_state; |
| 60 | var bp; |
| 61 | |
| 62 | function listener(event, exec_state, event_data, data) { |
| 63 | print("Here ("+event+"/"+listener_state+"): " + |
| 64 | exec_state.frame(0).sourceLineText()); |
| 65 | try { |
| 66 | if (event == Debug.DebugEvent.Break) { |
| 67 | if (listener_state == 0) { |
| 68 | Debug.clearBreakPoint(bp); |
| 69 | exec_state.prepareStep(Debug.StepAction.StepNext); |
| 70 | listener_state = 1; |
| 71 | } else if (listener_state == 1) { |
| 72 | state_snapshot = String(state); |
| 73 | print("State: " + state_snapshot); |
| 74 | Debug.setListener(null); |
| 75 | listener_state = 2; |
| 76 | } |
| 77 | } |
| 78 | } catch (e) { |
| 79 | listener_exception = e; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | |
| 84 | // Add the debug event listener. |
| 85 | listener_state = 0; |
| 86 | Debug.setListener(listener); |
| 87 | bp = Debug.setBreakPoint(f, 1); |
| 88 | |
| 89 | h(); |
| 90 | Debug.setListener(null); |
| 91 | if (listener_exception !== null) { |
| 92 | print("Exception caught: " + listener_exception); |
| 93 | assertUnreachable(); |
| 94 | } |
| 95 | |
| 96 | assertEquals(expected_final_state, state_snapshot); |
| 97 | } |
| 98 | |
| 99 | |
| 100 | // Warm-up -- make sure all is compiled and ready for breakpoint. |
| 101 | h(); |
| 102 | |
| 103 | TestCase("0,0,-1"); |