OLD | NEW |
(Empty) | |
| 1 // Copyright 2012 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 |
| 30 // Test stepping into callbacks passed to builtin functions. |
| 31 |
| 32 Debug = debug.Debug |
| 33 |
| 34 var exception = false; |
| 35 |
| 36 function array_listener(event, exec_state, event_data, data) { |
| 37 try { |
| 38 if (event == Debug.DebugEvent.Break) { |
| 39 if (breaks == 0) { |
| 40 exec_state.prepareStep(Debug.StepAction.StepIn, 2); |
| 41 breaks = 1; |
| 42 } else if (breaks <= 3) { |
| 43 breaks++; |
| 44 // Check whether we break at the expected line. |
| 45 print(event_data.sourceLineText()); |
| 46 assertTrue(event_data.sourceLineText().indexOf("Expected to step") > 0); |
| 47 exec_state.prepareStep(Debug.StepAction.StepIn, 3); |
| 48 } |
| 49 } |
| 50 } catch (e) { |
| 51 exception = true; |
| 52 } |
| 53 }; |
| 54 |
| 55 function cb_false(num) { |
| 56 print("element " + num); // Expected to step to this point. |
| 57 return false; |
| 58 } |
| 59 |
| 60 function cb_true(num) { |
| 61 print("element " + num); // Expected to step to this point. |
| 62 return true; |
| 63 } |
| 64 |
| 65 function cb_reduce(a, b) { |
| 66 print("elements " + a + " and " + b); // Expected to step to this point. |
| 67 return a + b; |
| 68 } |
| 69 |
| 70 var a = [1, 2, 3, 4]; |
| 71 |
| 72 Debug.setListener(array_listener); |
| 73 |
| 74 var breaks = 0; |
| 75 debugger; |
| 76 a.forEach(cb_true); |
| 77 assertFalse(exception); |
| 78 assertEquals(4, breaks); |
| 79 |
| 80 breaks = 0; |
| 81 debugger; |
| 82 a.some(cb_false); |
| 83 assertFalse(exception); |
| 84 assertEquals(4, breaks); |
| 85 |
| 86 breaks = 0; |
| 87 debugger; |
| 88 a.every(cb_true); |
| 89 assertEquals(4, breaks); |
| 90 assertFalse(exception); |
| 91 |
| 92 breaks = 0; |
| 93 debugger; |
| 94 a.map(cb_true); |
| 95 assertFalse(exception); |
| 96 assertEquals(4, breaks); |
| 97 |
| 98 breaks = 0; |
| 99 debugger; |
| 100 a.filter(cb_true); |
| 101 assertFalse(exception); |
| 102 assertEquals(4, breaks); |
| 103 |
| 104 breaks = 0; |
| 105 debugger; |
| 106 a.reduce(cb_reduce); |
| 107 assertFalse(exception); |
| 108 assertEquals(4, breaks); |
| 109 |
| 110 breaks = 0; |
| 111 debugger; |
| 112 a.reduceRight(cb_reduce); |
| 113 assertFalse(exception); |
| 114 assertEquals(4, breaks); |
| 115 |
| 116 Debug.setListener(null); |
| 117 |
| 118 |
| 119 // Test two levels of builtin callbacks: |
| 120 // Array.forEach calls a callback function, which by itself uses |
| 121 // Array.forEach with another callback function. |
| 122 |
| 123 function second_level_listener(event, exec_state, event_data, data) { |
| 124 try { |
| 125 if (event == Debug.DebugEvent.Break) { |
| 126 if (breaks == 0) { |
| 127 exec_state.prepareStep(Debug.StepAction.StepIn, 3); |
| 128 breaks = 1; |
| 129 } else if (breaks <= 16) { |
| 130 breaks++; |
| 131 // Check whether we break at the expected line. |
| 132 assertTrue(event_data.sourceLineText().indexOf("Expected to step") > 0); |
| 133 // Step two steps further every four breaks to skip the |
| 134 // forEach call in the first level of recurision. |
| 135 var step = (breaks % 4 == 1) ? 6 : 3; |
| 136 exec_state.prepareStep(Debug.StepAction.StepIn, step); |
| 137 } |
| 138 } |
| 139 } catch (e) { |
| 140 exception = true; |
| 141 } |
| 142 }; |
| 143 |
| 144 function cb_foreach(num) { |
| 145 a.forEach(cb_true); |
| 146 print("back to the first level of recursion."); |
| 147 } |
| 148 |
| 149 Debug.setListener(second_level_listener); |
| 150 |
| 151 breaks = 0; |
| 152 debugger; |
| 153 a.forEach(cb_foreach); |
| 154 assertFalse(exception); |
| 155 assertEquals(17, breaks); |
| 156 |
| 157 Debug.setListener(null); |
| 158 |
| 159 |
| 160 //Test replace callback in String.replace. |
| 161 |
| 162 function replace_listener(event, exec_state, event_data, data) { |
| 163 try { |
| 164 if (event == Debug.DebugEvent.Break) { |
| 165 if (breaks == 0) { |
| 166 exec_state.prepareStep(Debug.StepAction.StepIn, 2); |
| 167 breaks = 1; |
| 168 } else { |
| 169 // Check whether we break at the expected line. |
| 170 assertTrue(event_data.sourceLineText().indexOf("Expected to step") > 0); |
| 171 } |
| 172 } |
| 173 } catch (e) { |
| 174 exception = true; |
| 175 } |
| 176 }; |
| 177 |
| 178 function cb_replace(match) { |
| 179 print("matching string: " + match); // Expected to step to this point. |
| 180 return "_"; |
| 181 } |
| 182 |
| 183 var s = "abcdefgehijke"; |
| 184 |
| 185 Debug.setListener(replace_listener); |
| 186 |
| 187 breaks = 0; |
| 188 debugger; |
| 189 assertEquals("ab_defgehijke", s.replace("c", cb_replace)); |
| 190 assertFalse(exception); |
| 191 assertEquals(1, breaks); |
| 192 |
| 193 breaks = 0; |
| 194 debugger; |
| 195 assertEquals("abcdefgehij_", s.replace(/..$/, cb_replace)); |
| 196 assertFalse(exception); |
| 197 assertEquals(1, breaks); |
| 198 |
| 199 breaks = 0; |
| 200 debugger; |
| 201 assertEquals("abcd_fg_hijk_", s.replace(/e/g, cb_replace)); |
| 202 assertFalse(exception); |
| 203 assertEquals(1, breaks); |
| 204 |
| 205 |
| 206 Debug.setListener(null); |
OLD | NEW |