debug-stepout-scope-part1.js 3.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
// Copyright 2011 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.

28
// Flags: --expose-debug-as debug
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189

// Check that the ScopeIterator can properly recreate the scope at
// every point when stepping through functions.

var Debug = debug.Debug;

function listener(event, exec_state, event_data, data) {
  if (event == Debug.DebugEvent.Break) {
    // Access scope details.
    var scope_count = exec_state.frame().scopeCount();
    for (var i = 0; i < scope_count; i++) {
      var scope = exec_state.frame().scope(i);
      // assertTrue(scope.isScope());
      scope.scopeType();
      scope.scopeObject();
    }

    // Do steps until we reach the global scope again.
    if (true) {
      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
    }
  }
}

Debug.setListener(listener);


function test1() {
  debugger;
  with ({x:1}) {
    x = 2;
  }
}
test1();


function test2() {
  if (true) {
    with ({}) {
      debugger;
    }
  } else {
    with ({}) {
      return 10;
    }
  }
}
test2();


function test3() {
  if (true) {
    debugger;
  } else {
    with ({}) {
      return 10;
    }
  }
}
test3();


function test4() {
  debugger;
  with ({x:1}) x = 1
}
test4();


function test5() {
  debugger;
  var dummy = 1;
  with ({}) {
    with ({}) {
      dummy = 2;
    }
  }
  dummy = 3;
}
test5();


function test6() {
  debugger;
  try {
    throw 'stuff';
  } catch (e) {
    e = 1;
  }
}
test6();


function test7() {
  debugger;
  function foo() {}
}
test7();


function test8() {
  debugger;
  (function foo() {})();
}
test8();


function test10() {
  debugger;
  with ({}) {
    return 10;
  }
}
test10();


function test11() {
  debugger;
  try {
    throw 'stuff';
  } catch (e) {
    return 10;
  }
}
test11();


var prefixes = [
    "debugger; ",
    "if (false) { try { throw 0; } catch(x) { return x; } }; debugger; " ];


// Return from function constructed with Function constructor.
var anon = 12;
for (var i = 0; i < prefixes.length; ++i) {
  var pre = prefixes[i];
  Function(pre + "return 42")();
  Function(pre + "return 42 ")();
  Function(pre + "return 42;")();
  Function(pre + "return 42; ")();
  Function(pre + "return anon")();
  Function(pre + "return anon ")();
  Function(pre + "return anon;")();
  Function(pre + "return anon; ")();
}


try {
  with({}) {
    debugger;
    eval("{}$%:^");
  }
} catch(e) {
  nop();
}


function nop() {}


// With block as the last(!) statement in global code.
190
with ({}) { debugger; }