CSE2410 Fall 2014 Bounce

// Copyright 2008 the V8 project authors. All rights reserved.

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

//

//     * Redistributions of source code must retain the above copyright

//       notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above

//       copyright notice, this list of conditions and the following

//       disclaimer in the documentation and/or other materials provided

//       with the distribution.

//     * Neither the name of Google Inc. nor the names of its

//       contributors may be used to endorse or promote products derived

//       from this software without specific prior written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Flags: --expose-debug-as debug

// Get the Debug object exposed from the debug context global object.

Debug = debug.Debug

listenerComplete = false;

exception = false;

function checkFrame0(name, value) {

  assertTrue(name == 'a' || name == 'b');

  if (name == 'a') {

    assertEquals(1, value);

  }

  if (name == 'b') {

    assertEquals(2, value);

  }

}

function checkFrame1(name, value) {

  assertTrue(name == '.arguments' || name == 'a');

  if (name == 'a') {

    assertEquals(3, value);

  }

}

function checkFrame2(name, value) {

  assertTrue(name == '.arguments' || name == 'a' ||

             name == 'arguments' || name == 'b');

  if (name == 'a') {

    assertEquals(5, value);

  }

  if (name == 'b') {

    assertEquals(0, value);

  }

}

function listener(event, exec_state, event_data, data) {

  try {

    if (event == Debug.DebugEvent.Break)

    {

      // Frame 0 has normal variables a and b.

      var frame0 = exec_state.frame(0);

      checkFrame0(frame0.localName(0), frame0.localValue(0).value());

      checkFrame0(frame0.localName(1), frame0.localValue(1).value());

      // Frame 1 has normal variable a (and the .arguments variable).

      var frame1 = exec_state.frame(1);

      checkFrame1(frame1.localName(0), frame1.localValue(0).value());

      checkFrame1(frame1.localName(1), frame1.localValue(1).value());

      // Frame 2 has normal variables a and b (and both the .arguments and

      // arguments variable).

      var frame2 = exec_state.frame(2);

      checkFrame2(frame2.localName(0), frame2.localValue(0).value());

      checkFrame2(frame2.localName(1), frame2.localValue(1).value());

      checkFrame2(frame2.localName(2), frame2.localValue(2).value());

      checkFrame2(frame2.localName(3), frame2.localValue(3).value());

      // Evaluating a and b on frames 0, 1 and 2 produces 1, 2, 3, 4, 5 and 6.

      assertEquals(1, exec_state.frame(0).evaluate('a').value());

      assertEquals(2, exec_state.frame(0).evaluate('b').value());

      assertEquals(3, exec_state.frame(1).evaluate('a').value());

      assertEquals(4, exec_state.frame(1).evaluate('b').value());

      assertEquals(5, exec_state.frame(2).evaluate('a').value());

      assertEquals(6, exec_state.frame(2).evaluate('b').value());

      // Indicate that all was processed.

      listenerComplete = true;

    }

  } catch (e) {

    exception = e

  };

};

// Add the debug event listener.

Debug.setListener(listener);

function h() {

  var a = 1;

  var b = 2;

  debugger;  // Breakpoint.

};

function g() {

  var a = 3;

  eval("var b = 4;");

  h();

};

function f() {

  var a = 5;

  var b = 0;

  with ({b:6}) {

    g();

  }

};

f();

// Make sure that the debug event listener vas invoked.

assertTrue(listenerComplete);

assertFalse(exception, "exception in listener")