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      1 // Copyright 2011 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 --expose-natives-as=builtins
     29 
     30 // Check that the ScopeIterator can properly recreate the scope at
     31 // every point when stepping through functions.
     32 
     33 var Debug = debug.Debug;
     34 
     35 function listener(event, exec_state, event_data, data) {
     36   if (event == Debug.DebugEvent.Break) {
     37     // Access scope details.
     38     var scope_count = exec_state.frame().scopeCount();
     39     for (var i = 0; i < scope_count; i++) {
     40       var scope = exec_state.frame().scope(i);
     41       // assertTrue(scope.isScope());
     42       scope.scopeType();
     43       scope.scopeObject();
     44     }
     45 
     46     // Do steps until we reach the global scope again.
     47     if (true) {
     48       exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
     49     }
     50   }
     51 }
     52 
     53 Debug.setListener(listener);
     54 
     55 var q = 42;
     56 var prefixes = [
     57     "debugger; ",
     58     "if (false) { try { throw 0; } catch(x) { this.x = x; } }; debugger; " ];
     59 var with_bodies = [ "with ({}) {}",
     60                     "with ({x:1}) x",
     61                     "with ({x:1}) x = 1",
     62                     "with ({x:1}) x ",
     63                     "with ({x:1}) x = 1 ",
     64                     "with ({x:1}) x;",
     65                     "with ({x:1}) x = 1;",
     66                     "with ({x:1}) x; ",
     67                     "with ({x:1}) x = 1; " ];
     68 
     69 
     70 function test9() {
     71   debugger;
     72   for (var i = 0; i < prefixes.length; ++i) {
     73     var pre = prefixes[i];
     74     for (var j = 0; j < with_bodies.length; ++j) {
     75       var body = with_bodies[j];
     76       eval(pre + body);
     77     }
     78   }
     79 }
     80 test9();
     81