Home | History | Annotate | Download | only in compiler
      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 // Test that functions introduced by eval work both when there are
     29 // strict mode and non-strict mode eval in scopes.
     30 
     31 // Flags: --allow-natives-syntax
     32 
     33 var x = 27;
     34 
     35 function f() { return x; }
     36 
     37 assertEquals(27, f());
     38 
     39 function do_eval(str) {
     40   "use strict";
     41   return eval(str);
     42 }
     43 
     44 var eval_f = do_eval('(' + f + ')');
     45 for (var i = 0; i < 5; i++) assertEquals(27, eval_f());
     46 %OptimizeFunctionOnNextCall(eval_f);
     47 assertEquals(27, eval_f());
     48 
     49 function do_eval_local(str) {
     50   "use strict";
     51   var x = 42;
     52   return eval(str);
     53 }
     54 
     55 eval_f = do_eval_local('(' + f + ')');
     56 for (var i = 0; i < 5; i++) assertEquals(42, eval_f());
     57 %OptimizeFunctionOnNextCall(eval_f);
     58 assertEquals(42, eval_f());
     59 
     60 function do_eval_with_other_eval_call(str) {
     61   "use strict";
     62   var f = eval(str);
     63   eval('var x = 1');
     64   return f;
     65 }
     66 
     67 eval_f = do_eval_with_other_eval_call('(' + f + ')');
     68 for (var i = 0; i < 5; i++) assertEquals(27, eval_f());
     69 %OptimizeFunctionOnNextCall(eval_f);
     70 assertEquals(27, eval_f());
     71 
     72 function test_non_strict_outer_eval() {
     73   function strict_eval(str) { "use strict"; return eval(str); }
     74   var eval_f = strict_eval('(' + f + ')');
     75   for (var i = 0; i < 5; i++) assertEquals(27, eval_f());
     76   %OptimizeFunctionOnNextCall(eval_f);
     77   assertEquals(27, eval_f());
     78   eval("var x = 3");
     79   assertEquals(3, eval_f());
     80 }
     81 
     82 test_non_strict_outer_eval();
     83 
     84 function test_strict_outer_eval() {
     85   "use strict";
     86   function strict_eval(str) { "use strict"; return eval(str); }
     87   var eval_f = strict_eval('(' + f + ')');
     88   for (var i = 0; i < 5; i++) assertEquals(27, eval_f());
     89   %OptimizeFunctionOnNextCall(eval_f);
     90   assertEquals(27, eval_f());
     91   eval("var x = 3");
     92   assertEquals(27, eval_f());
     93 }
     94 
     95 test_non_strict_outer_eval();
     96