Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1 | // Copyright 2009 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 | var exception = null; |
| 33 | var state = 0; |
| 34 | var expected_function_name = null; |
| 35 | var expected_source_line_text = null; |
| 36 | var expected_caller_source_line = null; |
| 37 | var step_in_count = 2; |
| 38 | |
| 39 | // Simple debug event handler which first time will cause 'step in' action |
| 40 | // to get into g.call and than check that execution is pauesed inside |
| 41 | // function 'g'. |
| 42 | function listener(event, exec_state, event_data, data) { |
| 43 | try { |
| 44 | if (event == Debug.DebugEvent.Break) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 45 | if (state < step_in_count) { |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 46 | // Step into f(). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 47 | exec_state.prepareStep(Debug.StepAction.StepIn); |
| 48 | state++; |
| 49 | } else { |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 50 | assertEquals(expected_source_line_text, |
| 51 | event_data.sourceLineText()); |
| 52 | assertEquals(expected_function_name, event_data.func().name()); |
| 53 | state = 3; |
| 54 | } |
| 55 | } |
| 56 | } catch(e) { |
| 57 | exception = e; |
| 58 | } |
| 59 | }; |
| 60 | |
| 61 | // Add the debug event listener. |
| 62 | Debug.setListener(listener); |
| 63 | |
| 64 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 65 | function g() { |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 66 | return "s"; // expected line |
| 67 | } |
| 68 | |
| 69 | function testFunction() { |
| 70 | var f = g; |
| 71 | var s = 1 +f(10); |
| 72 | } |
| 73 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 74 | function g2() { |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 75 | return "s2"; // expected line |
| 76 | } |
| 77 | |
| 78 | function testFunction2() { |
| 79 | var f = g2; |
| 80 | var s = 1 +f(10, 20); |
| 81 | } |
| 82 | |
| 83 | // Run three times. First time the function will be compiled lazily, |
| 84 | // second time cached version will be used. |
| 85 | for (var i = 0; i < 3; i++) { |
| 86 | state = 0; |
| 87 | expected_function_name = 'g'; |
| 88 | expected_source_line_text = ' return "s"; // expected line'; |
| 89 | step_in_count = 2; |
| 90 | // Set a break point and call to invoke the debug event listener. |
| 91 | Debug.setBreakPoint(testFunction, 1, 0); |
| 92 | testFunction(); |
| 93 | assertNull(exception); |
| 94 | assertEquals(3, state); |
| 95 | } |
| 96 | |
| 97 | // Test stepping into function call when a breakpoint is set at the place |
| 98 | // of call. Use different pair of functions so that g2 is compiled lazily. |
| 99 | // Run twice: first time function will be compiled lazily, second time |
| 100 | // cached version will be used. |
| 101 | for (var i = 0; i < 3; i++) { |
| 102 | state = 0; |
| 103 | expected_function_name = 'g2'; |
| 104 | expected_source_line_text = ' return "s2"; // expected line'; |
| 105 | step_in_count = 1; |
| 106 | // Set a break point and call to invoke the debug event listener. |
| 107 | Debug.setBreakPoint(testFunction2, 2, 0); |
| 108 | testFunction2(); |
| 109 | assertNull(exception); |
| 110 | assertEquals(3, state); |
| 111 | } |
| 112 | |
| 113 | |
| 114 | // Get rid of the debug event listener. |
| 115 | Debug.setListener(null); |