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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,
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     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 // Get the Debug object exposed from the debug context global object.
     31 Debug = debug.Debug
     32 
     33 var exception = null;
     34 var state = 1;
     35 var expected_source_line_text = null;
     36 var expected_function_name = null;
     37 
     38 // Simple debug event handler which first time will cause 'step out' action
     39 // and than check that execution is paused inside function
     40 // expected_function_name.
     41 function listener(event, exec_state, event_data, data) {
     42   try {
     43     if (event == Debug.DebugEvent.Break) {
     44       if (state == 1) {
     45         exec_state.prepareStep(Debug.StepAction.StepOut, 2);
     46         state = 2;
     47       } else if (state == 2) {
     48         assertEquals(expected_function_name, event_data.func().name());
     49         assertEquals(expected_source_line_text,
     50                      event_data.sourceLineText());
     51         state = 3;
     52       }
     53     }
     54   } catch(e) {
     55     exception = e;
     56   }
     57 };
     58 
     59 // Add the debug event listener.
     60 Debug.setListener(listener);
     61 
     62 var obj = {key:10};
     63 
     64 function replacer(key, value) {
     65   if (key == 'key') {
     66     debugger;
     67   }
     68   return value;
     69 }
     70 
     71 // Test step into function call from a function without local variables.
     72 function testStepOutToBuiltIn() {
     73   expected_function_name = 'testStepOutToBuiltIn';
     74   expected_source_line_text = '}  // expected line';
     75   JSON.stringify(obj, replacer);
     76 }  // expected line
     77 
     78 state = 1;
     79 testStepOutToBuiltIn();
     80 assertNull(exception);
     81 assertEquals(3, state);
     82 
     83 // Get rid of the debug event listener.
     84 Debug.setListener(null);
     85