Revert of "[es6] Partially implement Reflect.ownKeys."

test/mjsunit/harmony/reflect-own-keys.js

-// Copyright 2015 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This is adapted from mjsunit/object-get-own-property-names.js.
-
-// Flags: --harmony-reflect
-
-
-// Check simple cases.
-var obj = { a: 1, b: 2};
-var keys = Reflect.ownKeys(obj);
-assertEquals(2, keys.length);
-assertEquals("a", keys[0]);
-assertEquals("b", keys[1]);
-
-var obj = { a: function(){}, b: function(){} };
-var keys = Reflect.ownKeys(obj);
-assertEquals(2, keys.length);
-assertEquals("a", keys[0]);
-assertEquals("b", keys[1]);
-
-// Check slow case
-var obj = { a: 1, b: 2, c: 3 };
-delete obj.b;
-var keys = Reflect.ownKeys(obj)
-assertEquals(2, keys.length);
-assertEquals("a", keys[0]);
-assertEquals("c", keys[1]);
-
-// Check that non-enumerable properties are being returned.
-var keys = Reflect.ownKeys([1, 2]);
-assertEquals(3, keys.length);
-assertEquals("0", keys[0]);
-assertEquals("1", keys[1]);
-assertEquals("string", typeof keys[0]);
-assertEquals("string", typeof keys[1]);
-assertEquals("length", keys[2]);
-
-// Check that no proto properties are returned.
-var obj = { foo: "foo" };
-obj.__proto__ = { bar: "bar" };
-keys = Reflect.ownKeys(obj);
-assertEquals(1, keys.length);
-assertEquals("foo", keys[0]);
-
-// Check that getter properties are returned.
-var obj = {};
-obj.__defineGetter__("getter", function() {});
-keys = Reflect.ownKeys(obj);
-assertEquals(1, keys.length);
-assertEquals("getter", keys[0]);
-
-// Check that implementation does not access Array.prototype.
-var savedConcat = Array.prototype.concat;
-Array.prototype.concat = function() { return []; }
-keys = Reflect.ownKeys({0: 'foo', bar: 'baz'});
-assertEquals(2, keys.length);
-assertEquals('0', keys[0]);
-assertEquals('bar', keys[1]);
-assertSame(Array.prototype, keys.__proto__);
-Array.prototype.concat = savedConcat;
-
-assertThrows(function() { Reflect.ownKeys(4) }, TypeError);
-assertThrows(function() { Reflect.ownKeys("foo") }, TypeError);
-assertThrows(function() { Reflect.ownKeys(true) }, TypeError);
-
-assertEquals(Reflect.ownKeys(Object(4)), []);
-assertEquals(Reflect.ownKeys(Object("foo")), ["0", "1", "2", "length"]);
-assertEquals(Reflect.ownKeys(Object(true)), []);