1 // Copyright 2012 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 --cache-optimized-code 29 30 function bozo() {}; 31 function MakeClosure() { 32 return function f(use_literals) { 33 if (use_literals) { 34 return [1,2,3,3,4,5,6,7,8,9,bozo]; 35 } else { 36 return 0; 37 } 38 } 39 } 40 41 // Create two closures that share the same literal boilerplates. 42 var closure1 = MakeClosure(); 43 var closure2 = MakeClosure(); 44 var expected = [1,2,3,3,4,5,6,7,8,9,bozo]; 45 46 // Make sure we generate optimized code for the first closure after 47 // warming it up properly so that the literals boilerplate is generated 48 // and the optimized code uses CreateArrayLiteralShallow runtime call. 49 assertEquals(0, closure1(false)); 50 assertEquals(expected, closure1(true)); 51 %OptimizeFunctionOnNextCall(closure1); 52 assertEquals(expected, closure1(true)); 53 54 // Optimize the second closure, which should reuse the optimized code 55 // from the first closure with the same literal boilerplates. 56 assertEquals(0, closure2(false)); 57 %OptimizeFunctionOnNextCall(closure2); 58 assertEquals(expected, closure2(true)); 59
