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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 'use strict'; | 28 var a = [function(a) { return a+10; }, |
29 | 29 function(a) { return a+20; }]; |
30 // ES6 draft 09-27-13, section 20.2.2.28. | 30 a.__proto__.test = function(a) { return a+30; } |
31 function MathSign(x) { | 31 function f(i) { |
32 x = TO_NUMBER_INLINE(x); | 32 return "r" + (1, a[i](i+1), a[i](i+2)); |
33 if (x > 0) return 1; | |
34 if (x < 0) return -1; | |
35 if (x === 0) return x; | |
36 return NAN; | |
37 } | 33 } |
38 | 34 |
| 35 assertEquals("r12", f(0)); |
| 36 assertEquals("r12", f(0)); |
| 37 assertEquals("r23", f(1)); |
| 38 assertEquals("r23", f(1)); |
39 | 39 |
40 // ES6 draft 09-27-13, section 20.2.2.34. | 40 // Deopt the stub. |
41 function MathTrunc(x) { | 41 assertEquals("rtest230", f("test")); |
42 x = TO_NUMBER_INLINE(x); | 42 |
43 if (x > 0) return MathFloor(x); | 43 var a2 = [function(a) { return a+10; },, |
44 if (x < 0) return MathCeil(x); | 44 function(a) { return a+20; }]; |
45 if (x === 0) return x; | 45 a2.__proto__.test = function(a) { return a+30; } |
46 return NAN; | 46 function f2(i) { |
| 47 return "r" + (1, a2[i](i+1), a2[i](i+2)); |
47 } | 48 } |
48 | 49 |
| 50 assertEquals("r12", f2(0)); |
| 51 assertEquals("r12", f2(0)); |
| 52 assertEquals("r24", f2(2)); |
| 53 assertEquals("r24", f2(2)); |
49 | 54 |
50 function ExtendMath() { | 55 // Deopt the stub. This will throw given that undefined is not a function. |
51 %CheckIsBootstrapping(); | 56 assertThrows(function() { f2(1) }); |
52 | |
53 // Set up the non-enumerable functions on the Math object. | |
54 InstallFunctions($Math, DONT_ENUM, $Array( | |
55 "sign", MathSign, | |
56 "trunc", MathTrunc | |
57 )); | |
58 } | |
59 | |
60 ExtendMath(); | |
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