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: --harmony-modules 29 30 // Test that potential recompilation of the global scope does not screw up. 31 32 "use strict"; 33 34 var N = 1e5; // Number of loop iterations that trigger optimization. 35 36 module A { 37 export var x = 1 38 export function f() { return x } 39 } 40 var f = A.f 41 42 assertEquals(1, A.x) 43 assertEquals(1, A.f()) 44 assertEquals(1, f()) 45 46 A.x = 2 47 48 assertEquals(2, A.x) 49 assertEquals(2, A.f()) 50 assertEquals(2, f()) 51 52 for (var i = 0; i < N; i++) { 53 if (i > N) print("impossible"); 54 } 55 56 assertEquals(2, A.x) 57 assertEquals(2, A.f()) 58 assertEquals(2, f()) 59 60 61 // Same test with loop inside a module. 62 63 module B { 64 module A { 65 export var x = 1 66 export function f() { return x } 67 } 68 var f = A.f 69 70 assertEquals(1, A.x) 71 assertEquals(1, A.f()) 72 assertEquals(1, f()) 73 74 A.x = 2 75 76 assertEquals(2, A.x) 77 assertEquals(2, A.f()) 78 assertEquals(2, f()) 79 80 for (var i = 0; i < N; i++) { 81 if (i > N) print("impossible"); 82 } 83 84 assertEquals(2, A.x) 85 assertEquals(2, A.f()) 86 assertEquals(2, f()) 87 } 88
