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      1 // Copyright 2008 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 // Simple function which stores the last debug event.
     33 lastDebugEvent = new Object();
     34 function listener(event, exec_state, event_data, data) {
     35   if (event == Debug.DebugEvent.Break ||
     36       event == Debug.DebugEvent.Exception)
     37   {
     38     lastDebugEvent.event = event;
     39     lastDebugEvent.frameFuncName = exec_state.frame().func().name();
     40     lastDebugEvent.event_data = event_data;
     41   }
     42 };
     43 
     44 // Add the debug event listener.
     45 Debug.setListener(listener);
     46 // Get events from handled exceptions.
     47 Debug.setBreakOnException();
     48 
     49 // Test debug event for handled exception.
     50 (function f(){
     51   try {
     52     x();
     53   } catch(e) {
     54     // Do nothing. Ignore exception.
     55   }
     56 })();
     57 assertTrue(lastDebugEvent.event == Debug.DebugEvent.Exception);
     58 assertEquals(lastDebugEvent.frameFuncName, "f");
     59 assertFalse(lastDebugEvent.event_data.uncaught());
     60 Debug.clearBreakOnException();
     61 
     62 // Test debug event for break point.
     63 function a() {
     64   x = 1;
     65   y = 2;
     66   z = 3;
     67 };
     68 Debug.setBreakPoint(a, 1);
     69 a();
     70 assertTrue(lastDebugEvent.event == Debug.DebugEvent.Break);
     71 assertEquals(lastDebugEvent.frameFuncName, "a");
     72 
     73 Debug.setListener(null);
     74