1 // Copyright 2008-2015 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 // This is adapted from mjsunit/for-in.js. 29 30 // Flags: --harmony-reflect 31 32 33 function props(x) { 34 var array = []; 35 for (var p of Reflect.enumerate(x)) array.push(p); 36 return array.sort(); 37 } 38 39 assertEquals(0, props({}).length, "olen0"); 40 assertEquals(1, props({x:1}).length, "olen1"); 41 assertEquals(2, props({x:1, y:2}).length, "olen2"); 42 43 assertArrayEquals(["x"], props({x:1}), "x"); 44 assertArrayEquals(["x", "y"], props({x:1, y:2}), "xy"); 45 assertArrayEquals(["x", "y", "zoom"], props({x:1, y:2, zoom:3}), "xyzoom"); 46 47 assertEquals(0, props([]).length, "alen0"); 48 assertEquals(1, props([1]).length, "alen1"); 49 assertEquals(2, props([1,2]).length, "alen2"); 50 51 assertArrayEquals(["0"], props([1]), "0"); 52 assertArrayEquals(["0", "1"], props([1,2]), "01"); 53 assertArrayEquals(["0", "1", "2"], props([1,2,3]), "012"); 54 55 var o = {}; 56 var a = []; 57 for (var i = 0x0020; i < 0x01ff; i+=2) { 58 var s = 'char:' + String.fromCharCode(i); 59 a.push(s); 60 o[s] = i; 61 } 62 assertArrayEquals(a, props(o), "charcodes"); 63 64 var a = []; 65 assertEquals(0, props(a).length, "proplen0"); 66 a[Math.pow(2,30)-1] = 0; 67 assertEquals(1, props(a).length, "proplen1"); 68 a[Math.pow(2,31)-1] = 0; 69 assertEquals(2, props(a).length, "proplen2"); 70 a[1] = 0; 71 assertEquals(3, props(a).length, "proplen3"); 72 73 var result = ''; 74 for (var p of Reflect.enumerate({a : [0], b : 1})) { result += p; } 75 assertEquals('ab', result, "ab"); 76 77 var result = ''; 78 for (var p of Reflect.enumerate({a : {v:1}, b : 1})) { result += p; } 79 assertEquals('ab', result, "ab-nodeep"); 80 81 var result = ''; 82 for (var p of Reflect.enumerate({ get a() {}, b : 1})) { result += p; } 83 assertEquals('ab', result, "abget"); 84 85 var result = ''; 86 for (var p of Reflect.enumerate({ get a() {}, set a(x) {}, b : 1})) { 87 result += p; 88 } 89 assertEquals('ab', result, "abgetset"); 90 91 (function() { 92 var large_key = 2147483650; 93 var o = {__proto__: {}}; 94 o[large_key] = 1; 95 o.__proto__[large_key] = 1; 96 var keys = []; 97 for (var k of Reflect.enumerate(o)) { 98 keys.push(k); 99 } 100 assertEquals(["2147483650"], keys); 101 })(); 102
