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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
92 lines
3.5 KiB
JavaScript
92 lines
3.5 KiB
JavaScript
// Copyright 2015 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This is adapted from mjsunit/object-get-own-property-names.js.
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// Check simple cases.
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var obj = { a: 1, b: 2};
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var keys = Reflect.ownKeys(obj);
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assertEquals(2, keys.length);
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assertEquals("a", keys[0]);
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assertEquals("b", keys[1]);
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var obj = { a: function(){}, b: function(){} };
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var keys = Reflect.ownKeys(obj);
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assertEquals(2, keys.length);
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assertEquals("a", keys[0]);
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assertEquals("b", keys[1]);
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// Check slow case
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var obj = { a: 1, b: 2, c: 3 };
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delete obj.b;
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var keys = Reflect.ownKeys(obj)
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assertEquals(2, keys.length);
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assertEquals("a", keys[0]);
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assertEquals("c", keys[1]);
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// Check that non-enumerable properties are being returned.
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var keys = Reflect.ownKeys([1, 2]);
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assertEquals(3, keys.length);
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assertEquals("0", keys[0]);
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assertEquals("1", keys[1]);
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assertEquals("string", typeof keys[0]);
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assertEquals("string", typeof keys[1]);
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assertEquals("length", keys[2]);
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// Check that no proto properties are returned.
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var obj = { foo: "foo" };
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obj.__proto__ = { bar: "bar" };
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keys = Reflect.ownKeys(obj);
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assertEquals(1, keys.length);
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assertEquals("foo", keys[0]);
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// Check that getter properties are returned.
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var obj = {};
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obj.__defineGetter__("getter", function() {});
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keys = Reflect.ownKeys(obj);
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assertEquals(1, keys.length);
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assertEquals("getter", keys[0]);
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// Check that implementation does not access Array.prototype.
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var savedConcat = Array.prototype.concat;
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Array.prototype.concat = function() { return []; }
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keys = Reflect.ownKeys({0: 'foo', bar: 'baz'});
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assertEquals(2, keys.length);
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assertEquals('0', keys[0]);
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assertEquals('bar', keys[1]);
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assertSame(Array.prototype, keys.__proto__);
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Array.prototype.concat = savedConcat;
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assertThrows(function() { Reflect.ownKeys(4) }, TypeError);
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assertThrows(function() { Reflect.ownKeys("foo") }, TypeError);
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assertThrows(function() { Reflect.ownKeys(true) }, TypeError);
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assertEquals(Reflect.ownKeys(Object(4)), []);
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assertEquals(Reflect.ownKeys(Object("foo")), ["0", "1", "2", "length"]);
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assertEquals(Reflect.ownKeys(Object(true)), []);
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