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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 listenerComplete = false;
     33 exception = false;
     34 
     35 
     36 function h() {
     37   var a = 1;
     38   var b = 2;
     39   debugger;  // Breakpoint.
     40 }
     41 
     42 function checkFrame0(frame) {
     43   // Frame 0 (h) has normal variables a and b.
     44   var count = frame.localCount();
     45   assertEquals(2, count);
     46   for (var i = 0; i < count; ++i) {
     47     var name = frame.localName(i);
     48     var value = frame.localValue(i).value();
     49     if (name == 'a') {
     50       assertEquals(1, value);
     51     } else {
     52       assertEquals('b', name);
     53       assertEquals(2, value);
     54     }
     55   }
     56 }
     57 
     58 
     59 function g() {
     60   var a = 3;
     61   eval("var b = 4;");
     62   h();
     63 }
     64 
     65 function checkFrame1(frame) {
     66   // Frame 1 (g) has normal variable a (and arguments).
     67   var count = frame.localCount();
     68   assertEquals(2, count);
     69   for (var i = 0; i < count; ++i) {
     70     var name = frame.localName(i);
     71     var value = frame.localValue(i).value();
     72     if (name == 'a') {
     73       assertEquals(3, value);
     74     } else {
     75       assertEquals('arguments', name);
     76     }
     77   }
     78 }
     79 
     80 
     81 function f() {
     82   var a = 5;
     83   var b = 0;
     84   with ({b:6}) {
     85     g();
     86   }
     87 }
     88 
     89 function checkFrame2(frame) {
     90   // Frame 2 (f) has normal variables a and b (and arguments).
     91   var count = frame.localCount();
     92   assertEquals(3, count);
     93   for (var i = 0; i < count; ++i) {
     94     var name = frame.localName(i);
     95     var value = frame.localValue(i).value();
     96     if (name == 'a') {
     97       assertEquals(5, value);
     98     } else if (name == 'b') {
     99       assertEquals(0, value);
    100     } else {
    101       assertEquals('arguments', name);
    102     }
    103   }
    104 }
    105 
    106 
    107 function listener(event, exec_state, event_data, data) {
    108   try {
    109     if (event == Debug.DebugEvent.Break)
    110     {
    111       checkFrame0(exec_state.frame(0));
    112       checkFrame1(exec_state.frame(1));
    113       checkFrame2(exec_state.frame(2));
    114 
    115       // Evaluating a and b on frames 0, 1 and 2 produces 1, 2, 3, 4, 5 and 6.
    116       assertEquals(1, exec_state.frame(0).evaluate('a').value());
    117       assertEquals(2, exec_state.frame(0).evaluate('b').value());
    118       assertEquals(3, exec_state.frame(1).evaluate('a').value());
    119       assertEquals(4, exec_state.frame(1).evaluate('b').value());
    120       assertEquals(5, exec_state.frame(2).evaluate('a').value());
    121       assertEquals(6, exec_state.frame(2).evaluate('b').value());
    122 
    123       // Indicate that all was processed.
    124       listenerComplete = true;
    125     }
    126   } catch (e) {
    127     exception = e
    128   };
    129 };
    130 
    131 // Add the debug event listener.
    132 Debug.setListener(listener);
    133 
    134 f();
    135 
    136 // Make sure that the debug event listener vas invoked.
    137 assertTrue(listenerComplete);
    138 assertFalse(exception, "exception in listener")
    139