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      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
     29 
     30 // Test debug evaluation for functions without local context, but with
     31 // nested catch contexts.
     32 
     33 "use strict";
     34 
     35 var x;
     36 var result;
     37 
     38 function f() {
     39   {                   // Line 1.
     40     let i = 1;        // Line 2.
     41     try {             // Line 3.
     42       throw 'stuff';  // Line 4.
     43     } catch (e) {     // Line 5.
     44       x = 2;          // Line 6.
     45     }
     46   }
     47 };
     48 
     49 // Get the Debug object exposed from the debug context global object.
     50 var Debug = debug.Debug
     51 
     52 function listener(event, exec_state, event_data, data) {
     53   if (event == Debug.DebugEvent.Break) {
     54     result = exec_state.frame().evaluate("i").value();
     55   }
     56 };
     57 
     58 // Add the debug event listener.
     59 Debug.setListener(listener);
     60 
     61 //Set breakpoint on line 6.
     62 var bp = Debug.setBreakPoint(f, 6);
     63 
     64 result = -1;
     65 f();
     66 assertEquals(1, result);
     67 
     68 // Clear breakpoint.
     69 Debug.clearBreakPoint(bp);
     70 // Get rid of the debug event listener.
     71 Debug.setListener(null);
     72 
     73 
     74 function f1() {
     75   {
     76     let i = 1;
     77     debugger;
     78     assertEquals(2, i);
     79   }
     80 }
     81 
     82 function f2() {
     83   {
     84     let i = 1;
     85     debugger;
     86     assertEquals(2, i);
     87     return function() { return i++; }
     88   }
     89 }
     90 
     91 var exception;
     92 Debug.setListener(function (event, exec_state, event_data, data) {
     93   try {
     94     if (event == Debug.DebugEvent.Break) {
     95       var frame = exec_state.frame();
     96       assertEquals(1, frame.evaluate("i").value());
     97       var allScopes = frame.allScopes();
     98       assertEquals(1, allScopes[0].scopeObject().value().i);
     99       allScopes[0].setVariableValue("i", 2);
    100     }
    101   } catch (e) {
    102     exception = e;
    103   }
    104 });
    105 
    106 exception = null;
    107 f1();
    108 assertEquals(null, exception, exception);
    109 exception = null;
    110 f2();
    111 assertEquals(null, exception, exception);
    112 
    113 Debug.setListener(null);
    114