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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,
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     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 debug event handler which just counts the number of break points hit.
     33 var break_point_hit_count;
     34 
     35 function listener(event, exec_state, event_data, data) {
     36   if (event == Debug.DebugEvent.Break) {
     37     break_point_hit_count++;
     38   }
     39 };
     40 
     41 // Add the debug event listener.
     42 Debug.setListener(listener);
     43 
     44 // Test function.
     45 function f() {};
     46 
     47 // This tests ignore of break points including the case with several
     48 // break points in the same location.
     49 break_point_hit_count = 0;
     50 
     51 // Set a breakpoint in f.
     52 bp1 = Debug.setBreakPoint(f);
     53 
     54 // Try ignore count of 1.
     55 Debug.changeBreakPointIgnoreCount(bp1, 1);
     56 f();
     57 assertEquals(0, break_point_hit_count);
     58 f();
     59 assertEquals(1, break_point_hit_count);
     60 
     61 // Set another breakpoint in f at the same place.
     62 bp2 = Debug.setBreakPoint(f);
     63 f();
     64 assertEquals(2, break_point_hit_count);
     65 
     66 // Set different ignore counts.
     67 Debug.changeBreakPointIgnoreCount(bp1, 2);
     68 Debug.changeBreakPointIgnoreCount(bp2, 4);
     69 f();
     70 assertEquals(2, break_point_hit_count);
     71 f();
     72 assertEquals(2, break_point_hit_count);
     73 f();
     74 assertEquals(3, break_point_hit_count);
     75 f();
     76 assertEquals(4, break_point_hit_count);
     77 
     78 // Set different ignore counts (opposite).
     79 Debug.changeBreakPointIgnoreCount(bp1, 4);
     80 Debug.changeBreakPointIgnoreCount(bp2, 2);
     81 f();
     82 assertEquals(4, break_point_hit_count);
     83 f();
     84 assertEquals(4, break_point_hit_count);
     85 f();
     86 assertEquals(5, break_point_hit_count);
     87 f();
     88 assertEquals(6, break_point_hit_count);
     89 
     90