Home | History | Annotate | Download | only in mjsunit
      1 // Copyright 2013 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: --allow-natives-syntax
     29 
     30 var g1 = { a:1 }
     31 
     32 function load() {
     33   return g1.a;
     34 }
     35 
     36 assertEquals(1, load());
     37 assertEquals(1, load());
     38 %OptimizeFunctionOnNextCall(load);
     39 assertEquals(1, load());
     40 delete g1.a;
     41 assertEquals(undefined, load());
     42 
     43 var g2 = { a:2 }
     44 
     45 function load2() {
     46   return g2.a;
     47 }
     48 
     49 assertEquals(2, load2());
     50 assertEquals(2, load2());
     51 %OptimizeFunctionOnNextCall(load2);
     52 assertEquals(2, load2());
     53 g2.b = 10;
     54 g2.a = 5;
     55 assertEquals(5, load2());
     56 
     57 var g3 = { a:2, b:9, c:1 }
     58 
     59 function store(v) {
     60   g3.a = v;
     61   return g3.a;
     62 }
     63 
     64 assertEquals(5, store(5));
     65 assertEquals(8, store(8));
     66 %OptimizeFunctionOnNextCall(store);
     67 assertEquals(10, store(10));
     68 delete g3.c;
     69 store(7);
     70 assertEquals({a:7, b:9}, g3);
     71