Steve Block | a7e24c1 | 2009-10-30 11:49:00 +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 | // Simple debug event handler which first time hit will perform 1000 steps and |
| 33 | // second time hit will evaluate and store the value of "i". If requires that |
| 34 | // the global property "state" is initially zero. |
| 35 | |
| 36 | var bp1, bp2; |
| 37 | |
| 38 | function listener(event, exec_state, event_data, data) { |
| 39 | if (event == Debug.DebugEvent.Break) { |
| 40 | if (state == 0) { |
| 41 | exec_state.prepareStep(Debug.StepAction.StepIn, 1000); |
| 42 | state = 1; |
| 43 | } else if (state == 1) { |
| 44 | result = exec_state.frame().evaluate("i").value(); |
| 45 | // Clear the break point on line 2 if set. |
| 46 | if (bp2) { |
| 47 | Debug.clearBreakPoint(bp2); |
| 48 | } |
| 49 | } |
| 50 | } |
| 51 | }; |
| 52 | |
| 53 | // Add the debug event listener. |
| 54 | Debug.setListener(listener); |
| 55 | |
| 56 | // Test debug event for break point. |
| 57 | function f() { |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 58 | var i; // Line 1. |
| 59 | for (i = 0; i < 1000; i++) { // Line 2. |
| 60 | x = 1; // Line 3. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 61 | } |
| 62 | }; |
| 63 | |
| 64 | // Set a breakpoint on the for statement (line 1). |
| 65 | bp1 = Debug.setBreakPoint(f, 1); |
| 66 | |
| 67 | // Check that performing 1000 steps will make i 499. |
| 68 | state = 0; |
| 69 | result = -1; |
| 70 | f(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 71 | assertEquals(332, result); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 72 | |
| 73 | // Check that performing 1000 steps with a break point on the statement in the |
| 74 | // for loop (line 2) will only make i 0 as a real break point breaks even when |
| 75 | // multiple steps have been requested. |
| 76 | state = 0; |
| 77 | result = -1; |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 78 | bp2 = Debug.setBreakPoint(f, 3); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 79 | f(); |
| 80 | assertEquals(0, result); |
| 81 | |
| 82 | // Get rid of the debug event listener. |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 83 | Debug.setListener(null); |