13bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Copyright 2010 the V8 project authors. All rights reserved. 23bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Redistribution and use in source and binary forms, with or without 33bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// modification, are permitted provided that the following conditions are 43bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// met: 53bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// 63bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// * Redistributions of source code must retain the above copyright 73bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// notice, this list of conditions and the following disclaimer. 83bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// * Redistributions in binary form must reproduce the above 93bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// copyright notice, this list of conditions and the following 103bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// disclaimer in the documentation and/or other materials provided 113bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// with the distribution. 123bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// * Neither the name of Google Inc. nor the names of its 133bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// contributors may be used to endorse or promote products derived 143bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// from this software without specific prior written permission. 153bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// 163bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 173bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 183bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 193bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 203bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 213bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 223bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 233bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 243bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 253bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 263bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 273bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 283bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Tests the Object.seal and Object.isSealed methods - ES 15.2.3.9 and 293bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// ES 15.2.3.12 303bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Flags: --allow-natives-syntax --noalways-opt 323bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 333bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Test that we throw an error if an object is not passed as argument. 343bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvar non_objects = new Array(undefined, null, 1, -1, 0, 42.43); 353bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochfor (var key in non_objects) { 363fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch var exception = false; 373bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch try { 383bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch Object.seal(non_objects[key]); 393bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } catch(e) { 403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch exception = true; 413bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch assertTrue(/Object.seal called on non-object/.test(e)); 423bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch assertTrue(exception); 443bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 453bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 463bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochfor (var key in non_objects) { 473fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch exception = false; 483bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch try { 493bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch Object.isSealed(non_objects[key]); 503bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } catch(e) { 513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch exception = true; 523bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch assertTrue(/Object.isSealed called on non-object/.test(e)); 533bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch assertTrue(exception); 553bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 563bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 573bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Test normal data properties. 583bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvar obj = { x: 42, z: 'foobar' }; 593bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvar desc = Object.getOwnPropertyDescriptor(obj, 'x'); 603bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 613bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.configurable); 623bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(42, desc.value); 633bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 643bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(obj, 'z'); 653bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 663bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.configurable); 673bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals('foobar', desc.value); 683bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 693bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isExtensible(obj)); 703bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isSealed(obj)); 713bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 723bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.seal(obj); 733bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 743bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Make sure we are no longer extensible. 753bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isExtensible(obj)); 763bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isSealed(obj)); 773bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 783bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// We should not be frozen, since we are still able to 793bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// update values. 803bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isFrozen(obj)); 813bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 823bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// We should not allow new properties to be added. 8344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockobj.foo = 42; 8444f0eee88ff00398ff7f715fab053374d808c90dSteve BlockassertEquals(obj.foo, undefined); 853bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 863bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(obj, 'x'); 873bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 883bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(desc.configurable); 893bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(42, desc.value); 903bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 913bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(obj, 'z'); 923bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 933bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(desc.configurable); 943bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals("foobar", desc.value); 953bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 963bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Since writable is not affected by seal we should still be able to 973bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// update the values. 983bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochobj.x = "43"; 99257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochassertEquals("43", obj.x); 1003bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1013bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Test on accessors. 1023bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvar obj2 = {}; 1033bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochfunction get() { return 43; }; 1043bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochfunction set() {}; 1053bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.defineProperty(obj2, 'x', { get: get, set: set, configurable: true }); 1063bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1073bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(obj2, 'x'); 1083bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.configurable); 1093bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(undefined, desc.value); 1103bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(set, desc.set); 1113bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(get, desc.get); 1123bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1133bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isExtensible(obj2)); 1143bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isSealed(obj2)); 1153bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.seal(obj2); 1163bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1173bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Since this is an accessor property the object is now effectively both 1183bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// sealed and frozen (accessors has no writable attribute). 1193bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isFrozen(obj2)); 1203bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isExtensible(obj2)); 1213bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isSealed(obj2)); 1223bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1233bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(obj2, 'x'); 1243bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(desc.configurable); 1253bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(undefined, desc.value); 1263bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(set, desc.set); 1273bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(get, desc.get); 1283bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 12944f0eee88ff00398ff7f715fab053374d808c90dSteve Blockobj2.foo = 42; 13044f0eee88ff00398ff7f715fab053374d808c90dSteve BlockassertEquals(obj2.foo, undefined); 1313bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1323bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Test seal on arrays. 1333bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvar arr = new Array(42,43); 1343bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1353bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(arr, '0'); 1363bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.configurable); 1373bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 1383bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(42, desc.value); 1393bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1403bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(arr, '1'); 1413bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.configurable); 1423bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 1433bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(43, desc.value); 1443bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1453bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isExtensible(arr)); 1463bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isSealed(arr)); 1473bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.seal(arr); 1483bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isSealed(arr)); 1493bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isExtensible(arr)); 150257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch// Since the values in the array is still writable this object 1513bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// is not frozen. 1523bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isFrozen(arr)); 1533bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1543bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(arr, '0'); 1553bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(desc.configurable); 1563bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 1573bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(42, desc.value); 1583bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1593bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochdesc = Object.getOwnPropertyDescriptor(arr, '1'); 1603bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(desc.configurable); 1613bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(desc.writable); 1623bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals(43, desc.value); 1633bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1643bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdocharr[0] = 'foo'; 1653bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1663bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// We should be able to overwrite the existing value. 1673bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertEquals('foo', arr[0]); 1683bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1693bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1703bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Test that isSealed returns the correct value even if configurable 1713bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// has been set to false on all properties manually and the extensible 1723bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// flag has also been set to false manually. 1733bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvar obj3 = { x: 42, y: 'foo' }; 1743bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1753bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isFrozen(obj3)); 1763bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1773bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.defineProperty(obj3, 'x', {configurable: false, writable: true}); 1783bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.defineProperty(obj3, 'y', {configurable: false, writable: false}); 1793bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.preventExtensions(obj3); 1803bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1813bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertTrue(Object.isSealed(obj3)); 1823bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1833bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1843bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// Make sure that an object that has a configurable property 1853bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch// is not classified as sealed. 1863bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvar obj4 = {}; 1873bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.defineProperty(obj4, 'x', {configurable: true, writable: false}); 1883bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.defineProperty(obj4, 'y', {configurable: false, writable: false}); 1893bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochObject.preventExtensions(obj4); 1903bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1913bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochassertFalse(Object.isSealed(obj4)); 192bb769b257e753aafcbd96767abb2abc645eaa20cBen Murdoch 193bb769b257e753aafcbd96767abb2abc645eaa20cBen Murdoch// Make sure that Object.seal returns the sealed object. 194257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvar obj4 = {}; 195257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochassertTrue(obj4 === Object.seal(obj4)); 196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Test that built-in array functions can't modify a sealed array. 199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochobj = [1, 2, 3]; 201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvar objControl = [4, 5, 6]; 202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Allow these functions to set up monomorphic calls, using custom built-ins. 204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvar push_call = function(a) { a.push(10); return a; } 205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvar pop_call = function(a) { return a.pop(); } 206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfor (var i = 0; i < 3; i++) { 207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch push_call(obj); 208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_call(obj); 209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochObject.seal(obj); 212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { push_call(obj); }, TypeError); 213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { pop_call(obj); }, TypeError); 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// But the control object is fine at these sites. 216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { push_call(objControl); }); 217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { pop_call(objControl); }); 218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { obj.push(); }); 220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { obj.push(3); }, TypeError); 221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { obj.pop(); }, TypeError); 222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { obj.shift(3); }, TypeError); 223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { obj.unshift(); }); 224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { obj.unshift(1); }, TypeError); 225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { obj.splice(0, 0, 100, 101, 102); }, TypeError); 226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { obj.splice(0,0); }); 227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { objControl.push(3); }); 229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { objControl.pop(); }); 230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { objControl.shift(3); }); 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { objControl.unshift(); }); 232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { objControl.splice(0, 0, 100, 101, 102); }); 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Verify that crankshaft still does the right thing. 235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochobj = [1, 2, 3]; 236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochpush_call = function(a) { a.push(1000); return a; } 238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Include a call site that doesn't have a custom built-in. 239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvar shift_call = function(a) { a.shift(1000); return a; } 240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfor (var i = 0; i < 3; i++) { 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch push_call(obj); 242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch shift_call(obj); 243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch%OptimizeFunctionOnNextCall(push_call); 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch%OptimizeFunctionOnNextCall(shift_call); 247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochpush_call(obj); 248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochshift_call(obj); 249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertOptimized(push_call); 250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertOptimized(shift_call); 251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochObject.seal(obj); 252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { push_call(obj); }, TypeError); 253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { shift_call(obj); }, TypeError); 254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertUnoptimized(push_call); 255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertUnoptimized(shift_call); 256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { push_call(objControl); }); 257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { shift_call(objControl); }); 258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Verify special behavior of splice on sealed objects. 260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochobj = [1,2,3]; 261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochObject.seal(obj); 262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { obj.splice(0,1,100); }); 263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertEquals(100, obj[0]); 264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { obj.splice(0,2,1,2); }); 265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { obj.splice(1,2,1,2); }); 266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Count of items to delete is clamped by length. 267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertDoesNotThrow(function() { obj.splice(1,2000,1,2); }); 268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { obj.splice(0,0,1); }, TypeError); 269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertThrows(function() { obj.splice(1,2000,1,2,3); }, TypeError); 270