OLD | NEW |
1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 assertThrows(function() { | |
29 Object.getPrototypeOf(undefined); | |
30 }, TypeError); | |
31 | 28 |
32 assertThrows(function() { | 29 function TryGetPrototypeOfNonObject(x) { |
33 Object.getPrototypeOf(null); | 30 var caught = 0; |
34 }, TypeError); | 31 try { |
| 32 Object.getPrototypeOf(x); |
| 33 } catch (e) { |
| 34 caught = e; |
| 35 } |
35 | 36 |
| 37 assertTrue(caught instanceof TypeError); |
| 38 }; |
| 39 |
| 40 function GetPrototypeOfObject(x) { |
| 41 assertDoesNotThrow(Object.getPrototypeOf(x)); |
| 42 assertNotNull(Object.getPrototypeOf(x)); |
| 43 assertEquals(Object.getPrototypeOf(x), x.__proto__); |
| 44 } |
36 | 45 |
37 function F(){}; | 46 function F(){}; |
| 47 |
| 48 // Non object |
| 49 var x = 10; |
| 50 |
| 51 // Object |
38 var y = new F(); | 52 var y = new F(); |
39 | 53 |
40 assertSame(Object.getPrototypeOf(y), F.prototype); | 54 // Make sure that TypeError exceptions are thrown when non-objects are passed |
41 assertSame(Object.getPrototypeOf(F), Function.prototype); | 55 // as argument |
| 56 TryGetPrototypeOfNonObject(0); |
| 57 TryGetPrototypeOfNonObject(null); |
| 58 TryGetPrototypeOfNonObject('Testing'); |
| 59 TryGetPrototypeOfNonObject(x); |
42 | 60 |
43 assertSame(Object.getPrototypeOf({x: 5}), Object.prototype); | 61 // Make sure the real objects have this method and that it returns the |
44 assertSame(Object.getPrototypeOf({x: 5, __proto__: null}), null); | 62 // actual prototype object. Also test for Functions and RegExp. |
45 | 63 GetPrototypeOfObject(this); |
46 assertSame(Object.getPrototypeOf([1, 2]), Array.prototype); | 64 GetPrototypeOfObject(y); |
47 | 65 GetPrototypeOfObject({x:5}); |
48 | 66 GetPrototypeOfObject(F); |
49 assertSame(Object.getPrototypeOf(1), Number.prototype); | 67 GetPrototypeOfObject(RegExp); |
50 assertSame(Object.getPrototypeOf(true), Boolean.prototype); | |
51 assertSame(Object.getPrototypeOf(false), Boolean.prototype); | |
52 assertSame(Object.getPrototypeOf('str'), String.prototype); | |
53 assertSame(Object.getPrototypeOf(Symbol()), Symbol.prototype); | |
54 | |
55 | |
56 // Builtin constructors. | |
57 var functions = [ | |
58 Array, | |
59 ArrayBuffer, | |
60 Boolean, | |
61 // DataView, | |
62 Date, | |
63 Error, | |
64 EvalError, | |
65 Float32Array, | |
66 Float64Array, | |
67 Function, | |
68 Int16Array, | |
69 Int32Array, | |
70 Int8Array, | |
71 Map, | |
72 Number, | |
73 Object, | |
74 // Promise, | |
75 RangeError, | |
76 ReferenceError, | |
77 RegExp, | |
78 Set, | |
79 String, | |
80 // Symbol, not constructible | |
81 SyntaxError, | |
82 TypeError, | |
83 URIError, | |
84 Uint16Array, | |
85 Uint32Array, | |
86 Uint8Array, | |
87 Uint8ClampedArray, | |
88 WeakMap, | |
89 WeakSet, | |
90 ]; | |
91 | |
92 for (var f of functions) { | |
93 assertSame(Object.getPrototypeOf(f), Function.prototype); | |
94 assertSame(Object.getPrototypeOf(new f), f.prototype); | |
95 } | |
96 | |
97 var p = new Promise(function() {}); | |
98 assertSame(Object.getPrototypeOf(p), Promise.prototype); | |
99 | |
100 var dv = new DataView(new ArrayBuffer()); | |
101 assertSame(Object.getPrototypeOf(dv), DataView.prototype); | |
OLD | NEW |