Home | History | Annotate | Download | only in mjsunit 
      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 
     56 function test1() {
     57   debugger;
     58   with ({x:1}) {
     59     x = 2;
     60   }
     61 }
     62 test1();
     63 
     64 
     65 function test2() {
     66   if (true) {
     67     with ({}) {
     68       debugger;
     69     }
     70   } else {
     71     with ({}) {
     72       return 10;
     73     }
     74   }
     75 }
     76 test2();
     77 
     78 
     79 function test3() {
     80   if (true) {
     81     debugger;
     82   } else {
     83     with ({}) {
     84       return 10;
     85     }
     86   }
     87 }
     88 test3();
     89 
     90 
     91 function test4() {
     92   debugger;
     93   with ({x:1}) x = 1
     94 }
     95 test4();
     96 
     97 
     98 function test5() {
     99   debugger;
    100   var dummy = 1;
    101   with ({}) {
    102     with ({}) {
    103       dummy = 2;
    104     }
    105   }
    106   dummy = 3;
    107 }
    108 test5();
    109 
    110 
    111 function test6() {
    112   debugger;
    113   try {
    114     throw 'stuff';
    115   } catch (e) {
    116     e = 1;
    117   }
    118 }
    119 test6();
    120 
    121 
    122 function test7() {
    123   debugger;
    124   function foo() {}
    125 }
    126 test7();
    127 
    128 
    129 function test8() {
    130   debugger;
    131   (function foo() {})();
    132 }
    133 test8();
    134 
    135 
    136 function test10() {
    137   debugger;
    138   with ({}) {
    139     return 10;
    140   }
    141 }
    142 test10();
    143 
    144 
    145 function test11() {
    146   debugger;
    147   try {
    148     throw 'stuff';
    149   } catch (e) {
    150     return 10;
    151   }
    152 }
    153 test11();
    154 
    155 
    156 var prefixes = [
    157     "debugger; ",
    158     "if (false) { try { throw 0; } catch(x) { return x; } }; debugger; " ];
    159 
    160 
    161 // Return from function constructed with Function constructor.
    162 var anon = 12;
    163 for (var i = 0; i < prefixes.length; ++i) {
    164   var pre = prefixes[i];
    165   Function(pre + "return 42")();
    166   Function(pre + "return 42 ")();
    167   Function(pre + "return 42;")();
    168   Function(pre + "return 42; ")();
    169   Function(pre + "return anon")();
    170   Function(pre + "return anon ")();
    171   Function(pre + "return anon;")();
    172   Function(pre + "return anon; ")();
    173 }
    174 
    175 
    176 try {
    177   with({}) {
    178     debugger;
    179     eval("{}$%:^");
    180   }
    181 } catch(e) {
    182   nop();
    183 }
    184 
    185 
    186 function nop() {}
    187 
    188 
    189 // With block as the last(!) statement in global code.
    190 with ({}) { debugger; }
    191