Home | History | Annotate | Download | only in mjsunit 
      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 
     30 // The functions used for testing backtraces.
     31 function Point(x, y) {
     32   this.x = x;
     33   this.y = y;
     34 };
     35 
     36 Point.prototype.distanceTo = function(p) {
     37   debugger;
     38   return Math.sqrt(Math.pow(Math.abs(this.x - p.x), 2) + Math.pow(Math.abs(this.y - p.y), 2))
     39 }
     40 
     41 p1 = new Point(1,1);
     42 p2 = new Point(2,2);
     43 
     44 p1.distanceTo = function(p) {
     45   return p.distanceTo(this);
     46 }
     47 
     48 function distance(p, q) {
     49   return p.distanceTo(q);
     50 }
     51 
     52 function createPoint(x, y) {
     53   return new Point(x, y);
     54 }
     55 
     56 a=[1,2,distance];
     57 
     58 // Get the Debug object exposed from the debug context global object.
     59 Debug = debug.Debug
     60 
     61 testConstructor = false;  // Flag to control which part of the test is run.
     62 listenerCalled = false;
     63 exception = false;
     64 
     65 function safeEval(code) {
     66   try {
     67     return eval('(' + code + ')');
     68   } catch (e) {
     69     return undefined;
     70   }
     71 }
     72 
     73 function listener(event, exec_state, event_data, data) {
     74   try {
     75   if (event == Debug.DebugEvent.Break)
     76   {
     77     if (!testConstructor) {
     78       // The expected backtrace is
     79       // 0: Call distance on Point where distance is a property on the prototype
     80       // 1: Call distance on Point where distance is a direct property
     81       // 2: Call on function an array element 2
     82       // 3: [anonymous]
     83       assertEquals("#<a Point>.distanceTo(p=#<a Point>)", exec_state.frame(0).invocationText());
     84       assertEquals("#<a Point>.distanceTo(p=#<a Point>)", exec_state.frame(1).invocationText());
     85       assertEquals("#<an Array>[2](aka distance)(p=#<a Point>, q=#<a Point>)", exec_state.frame(2).invocationText());
     86       assertEquals("[anonymous]()", exec_state.frame(3).invocationText());
     87       listenerCalled = true;
     88     } else {
     89       // The expected backtrace is
     90       // 0: Call Point constructor
     91       // 1: Call on global function createPoint
     92       // 2: [anonymous]
     93       assertEquals("new Point(x=0, y=0)", exec_state.frame(0).invocationText());
     94       assertEquals("createPoint(x=0, y=0)", exec_state.frame(1).invocationText());
     95       assertEquals("[anonymous]()", exec_state.frame(2).invocationText());
     96       listenerCalled = true;
     97     }
     98   }
     99   } catch (e) {
    100     exception = e
    101   };
    102 };
    103 
    104 // Add the debug event listener.
    105 Debug.setListener(listener);
    106 
    107 // Set a break point and call to invoke the debug event listener.
    108 a[2](p1, p2)
    109 
    110 // Make sure that the debug event listener vas invoked.
    111 assertTrue(listenerCalled);
    112 assertFalse(exception, "exception in listener")
    113 
    114 // Set a break point and call to invoke the debug event listener.
    115 listenerCalled = false;
    116 testConstructor = true;
    117 Debug.setBreakPoint(Point, 0, 0);
    118 createPoint(0, 0);
    119 
    120 // Make sure that the debug event listener vas invoked (again).
    121 assertTrue(listenerCalled);
    122 assertFalse(exception, "exception in listener")
    123