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      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 break_break_point_hit_count = 0;
     34 
     35 function listener(event, exec_state, event_data, data) {
     36   try {
     37     if (event == Debug.DebugEvent.Break) {
     38       if (break_break_point_hit_count == 0) {
     39         assertEquals('    debugger;',
     40                      event_data.sourceLineText());
     41         assertEquals('runDoWhile', event_data.func().name());
     42       } else if (break_break_point_hit_count == 1) {
     43         assertEquals('  } while(condition());',
     44                      event_data.sourceLineText());
     45         assertEquals('runDoWhile', event_data.func().name());
     46       }
     47 
     48       break_break_point_hit_count++;
     49       // Continue stepping until returned to bottom frame.
     50       if (exec_state.frameCount() > 1) {
     51         exec_state.prepareStep(Debug.StepAction.StepNext);
     52       }
     53 
     54     }
     55   } catch(e) {
     56     exception = e;
     57   }
     58 };
     59 
     60 // Add the debug event listener.
     61 Debug.setListener(listener);
     62 
     63 function condition() {
     64   return false;
     65 }
     66 
     67 function runDoWhile() {
     68   do {
     69     debugger;
     70   } while(condition());
     71 };
     72 
     73 break_break_point_hit_count = 0;
     74 runDoWhile();
     75 assertNull(exception);
     76 assertEquals(4, break_break_point_hit_count);
     77 
     78 // Get rid of the debug event listener.
     79 Debug.setListener(null);
     80