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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: --allow-natives-syntax
     29 
     30 var global = 0;
     31 var MAX = 5;
     32 
     33 // Attempt to inline strcit in non-strict.
     34 
     35 function strictToBeInlined(n) {
     36   "use strict";
     37   global = "strict";
     38   if (n == MAX) { undefined_variable_strict = "value"; }
     39 }
     40 
     41 function nonstrictCallStrict(n) {
     42   strictToBeInlined(n);
     43 }
     44 
     45 (function testInlineStrictInNonStrict() {
     46   for (var i = 0; i <= MAX; i ++) {
     47     try {
     48       if (i == MAX - 1) %OptimizeFunctionOnNextCall(nonstrictCallStrict);
     49       nonstrictCallStrict(i);
     50     } catch (e) {
     51       assertInstanceof(e, ReferenceError);
     52       assertEquals(MAX, i);
     53       return;
     54     }
     55   }
     56   fail("ReferenceError after MAX iterations", "no exception");
     57 })();
     58 
     59 // Attempt to inline non-strict in strict.
     60 
     61 function nonstrictToBeInlined(n) {
     62   global = "nonstrict";
     63   if (n == MAX) { undefined_variable_nonstrict = "The nonstrict value"; }
     64 }
     65 
     66 function strictCallNonStrict(n) {
     67   "use strict";
     68   nonstrictToBeInlined(n);
     69 }
     70 
     71 (function testInlineNonStrictInStrict() {
     72   for (var i = 0; i <= MAX; i ++) {
     73     try {
     74       if (i == MAX - 1) %OptimizeFunctionOnNextCall(nonstrictCallStrict);
     75       strictCallNonStrict(i);
     76     } catch (e) {
     77       fail("no exception", "exception");
     78     }
     79   }
     80   assertEquals("The nonstrict value", undefined_variable_nonstrict);
     81 })();
     82 
     83 // Optimize strict function.
     84 
     85 function strictAssignToUndefined(n) {
     86   "use strict";
     87   global = "strict";
     88   if (n == MAX) { undefined_variable_strict_2 = "value"; }
     89 }
     90 
     91 (function testOptimizeStrictAssignToUndefined() {
     92   for (var i = 0; i <= MAX; i ++) {
     93     try {
     94       if (i == MAX - 1) %OptimizeFunctionOnNextCall(nonstrictCallStrict);
     95       strictAssignToUndefined(i);
     96     } catch (e) {
     97       assertInstanceof(e, ReferenceError);
     98       assertEquals(MAX, i);
     99       return;
    100     }
    101   }
    102   fail("ReferenceError after MAX iterations", "no exception");
    103 })();
    104