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      1 // Copyright 2010 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 // Check that constants and computed properties are overwriting each other
     29 // correctly, i.e., the last initializer for any name is stored in the object.
     30 
     31 
     32 // Tests for the full code generator (if active).
     33 
     34 var foo1 = {
     35   bar: 6,
     36   bar: 7
     37 };
     38 
     39 var foo2 = {
     40   bar: function(a){},
     41   bar: 7
     42 };
     43 
     44 var foo3 = {
     45   bar: function(a){},
     46   bar: function(b){},
     47   bar: 7
     48 };
     49 
     50 var foo4 = {
     51   bar: function(b){},
     52   bar: 7,
     53   bar: function(){return 7},
     54 };
     55 
     56 var foo5 = {
     57   13: function(a){},
     58   13: 7
     59 }
     60 
     61 var foo6 = {
     62   14.31: function(a){},
     63   14.31: 7
     64 }
     65 
     66 var foo7 = {
     67   15: 6,
     68   15: 7
     69 }
     70 
     71 assertEquals(7, foo1.bar);
     72 assertEquals(7, foo2.bar);
     73 assertEquals(7, foo3.bar);
     74 assertEquals(7, foo4.bar());
     75 assertEquals(7, foo5[13]);
     76 assertEquals(7, foo6[14.31]);
     77 assertEquals(7, foo7[15]);
     78 
     79 // Test for the classic code generator.
     80 
     81 function fun(x) {
     82   var inner = { j: function(x) { return x; }, j: 7 }; 
     83   return inner.j;
     84 }
     85 
     86 assertEquals(7, fun(7) );
     87 
     88 // Check that the initializers of computed properties are executed, even if
     89 // no store instructions are generated for the literals.
     90 
     91 var glob1 = 0;
     92 
     93 var bar1 = { x: glob1++, x: glob1++, x: glob1++, x: 7};
     94 
     95 assertEquals(3, glob1);
     96 
     97 
     98 var glob2 = 0;
     99 
    100 function fun2() {
    101   var r = { y: glob2++, y: glob2++, y: glob2++, y: 7};
    102   return r.y;
    103 }
    104 
    105 var y = fun2();
    106 assertEquals(7, y);
    107 assertEquals(3, glob2);
    108 
    109 var glob3 = 0;
    110 
    111 function fun3() {
    112   var r = { 113: glob3++, 113: glob3++, 113: glob3++, 113: 7};
    113   return r[113];
    114 }
    115 
    116 var y = fun3();
    117 assertEquals(7, y);
    118 assertEquals(3, glob3);