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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 checkFrame0(name, value) {
     37   assertTrue(name == 'a' || name == 'b');
     38   if (name == 'a') {
     39     assertEquals(1, value);
     40   }
     41   if (name == 'b') {
     42     assertEquals(2, value);
     43   }
     44 }
     45 
     46 
     47 function checkFrame1(name, value) {
     48   assertTrue(name == '.arguments' || name == 'a');
     49   if (name == 'a') {
     50     assertEquals(3, value);
     51   }
     52 }
     53 
     54 
     55 function checkFrame2(name, value) {
     56   assertTrue(name == '.arguments' || name == 'a' ||
     57              name == 'arguments' || name == 'b');
     58   if (name == 'a') {
     59     assertEquals(5, value);
     60   }
     61   if (name == 'b') {
     62     assertEquals(0, value);
     63   }
     64 }
     65 
     66 
     67 function listener(event, exec_state, event_data, data) {
     68   try {
     69     if (event == Debug.DebugEvent.Break)
     70     {
     71       // Frame 0 has normal variables a and b.
     72       var frame0 = exec_state.frame(0);
     73       checkFrame0(frame0.localName(0), frame0.localValue(0).value());
     74       checkFrame0(frame0.localName(1), frame0.localValue(1).value());
     75 
     76       // Frame 1 has normal variable a (and the .arguments variable).
     77       var frame1 = exec_state.frame(1);
     78       checkFrame1(frame1.localName(0), frame1.localValue(0).value());
     79       checkFrame1(frame1.localName(1), frame1.localValue(1).value());
     80 
     81       // Frame 2 has normal variables a and b (and both the .arguments and
     82       // arguments variable).
     83       var frame2 = exec_state.frame(2);
     84       checkFrame2(frame2.localName(0), frame2.localValue(0).value());
     85       checkFrame2(frame2.localName(1), frame2.localValue(1).value());
     86       checkFrame2(frame2.localName(2), frame2.localValue(2).value());
     87       checkFrame2(frame2.localName(3), frame2.localValue(3).value());
     88 
     89       // Evaluating a and b on frames 0, 1 and 2 produces 1, 2, 3, 4, 5 and 6.
     90       assertEquals(1, exec_state.frame(0).evaluate('a').value());
     91       assertEquals(2, exec_state.frame(0).evaluate('b').value());
     92       assertEquals(3, exec_state.frame(1).evaluate('a').value());
     93       assertEquals(4, exec_state.frame(1).evaluate('b').value());
     94       assertEquals(5, exec_state.frame(2).evaluate('a').value());
     95       assertEquals(6, exec_state.frame(2).evaluate('b').value());
     96 
     97       // Indicate that all was processed.
     98       listenerComplete = true;
     99     }
    100   } catch (e) {
    101     exception = e
    102   };
    103 };
    104 
    105 // Add the debug event listener.
    106 Debug.setListener(listener);
    107 
    108 function h() {
    109   var a = 1;
    110   var b = 2;
    111   debugger;  // Breakpoint.
    112 };
    113 
    114 function g() {
    115   var a = 3;
    116   eval("var b = 4;");
    117   h();
    118 };
    119 
    120 function f() {
    121   var a = 5;
    122   var b = 0;
    123   with ({b:6}) {
    124     g();
    125   }
    126 };
    127 
    128 f();
    129 
    130 // Make sure that the debug event listener vas invoked.
    131 assertTrue(listenerComplete);
    132 assertFalse(exception, "exception in listener")
    133