| // Copyright 2008 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Flags: --expose-debug-as debug |
| // Get the Debug object exposed from the debug context global object. |
| Debug = debug.Debug |
| |
| // Simple debug event handler which first time hit will perform 1000 steps and |
| // second time hit will evaluate and store the value of "i". If requires that |
| // the global property "state" is initially zero. |
| |
| var bp1, bp2; |
| |
| function listener(event, exec_state, event_data, data) { |
| if (event == Debug.DebugEvent.Break) { |
| if (step_count > 0) { |
| exec_state.prepareStep(Debug.StepAction.StepIn); |
| step_count--; |
| } else { |
| result = exec_state.frame().evaluate("i").value(); |
| // Clear the break point on line 2 if set. |
| if (bp2) { |
| Debug.clearBreakPoint(bp2); |
| } |
| } |
| } |
| }; |
| |
| // Add the debug event listener. |
| Debug.setListener(listener); |
| |
| // Test debug event for break point. |
| function f() { |
| var i; // Line 1. |
| for (i = 0; i < 1000; i++) { // Line 2. |
| x = 1; // Line 3. |
| } |
| }; |
| |
| // Set a breakpoint on the for statement (line 1). |
| bp1 = Debug.setBreakPoint(f, 1); |
| |
| // Check that performing 1000 steps will make i 333. |
| var step_count = 1000; |
| result = -1; |
| f(); |
| assertEquals(333, result); |
| Debug.setListener(null); |