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1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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 function argc0() { | 28 // Tests to verify proper arguments handling if the arguments |
29 return arguments.length; | 29 // variable is declared as a parameter or local variable. |
30 } | |
31 | 30 |
32 function argc1(i) { | 31 function e(a) { |
33 return arguments.length; | 32 assertEquals(9, a.length); |
34 } | 33 assertEquals("arguments", a); |
| 34 }; |
35 | 35 |
36 function argc2(i, j) { | 36 e("arguments"); |
37 return arguments.length; | |
38 } | |
39 | |
40 assertEquals(0, argc0()); | |
41 assertEquals(1, argc0(1)); | |
42 assertEquals(2, argc0(1, 2)); | |
43 assertEquals(3, argc0(1, 2, 3)); | |
44 assertEquals(0, argc1()); | |
45 assertEquals(1, argc1(1)); | |
46 assertEquals(2, argc1(1, 2)); | |
47 assertEquals(3, argc1(1, 2, 3)); | |
48 assertEquals(0, argc2()); | |
49 assertEquals(1, argc2(1)); | |
50 assertEquals(2, argc2(1, 2)); | |
51 assertEquals(3, argc2(1, 2, 3)); | |
52 | 37 |
53 | 38 |
| 39 function f(arguments) { |
| 40 assertEquals(9, arguments.length); |
| 41 assertEquals("arguments", arguments); |
| 42 }; |
54 | 43 |
55 var index; | 44 f("arguments"); |
56 | |
57 function argv0() { | |
58 return arguments[index]; | |
59 } | |
60 | |
61 function argv1(i) { | |
62 return arguments[index]; | |
63 } | |
64 | |
65 function argv2(i, j) { | |
66 return arguments[index]; | |
67 } | |
68 | |
69 index = 0; | |
70 assertEquals(7, argv0(7)); | |
71 assertEquals(7, argv0(7, 8)); | |
72 assertEquals(7, argv0(7, 8, 9)); | |
73 assertEquals(7, argv1(7)); | |
74 assertEquals(7, argv1(7, 8)); | |
75 assertEquals(7, argv1(7, 8, 9)); | |
76 assertEquals(7, argv2(7)); | |
77 assertEquals(7, argv2(7, 8)); | |
78 assertEquals(7, argv2(7, 8, 9)); | |
79 | |
80 index = 1; | |
81 assertEquals(8, argv0(7, 8)); | |
82 assertEquals(8, argv0(7, 8)); | |
83 assertEquals(8, argv1(7, 8, 9)); | |
84 assertEquals(8, argv1(7, 8, 9)); | |
85 assertEquals(8, argv2(7, 8, 9)); | |
86 assertEquals(8, argv2(7, 8, 9)); | |
87 | |
88 index = 2; | |
89 assertEquals(9, argv0(7, 8, 9)); | |
90 assertEquals(9, argv1(7, 8, 9)); | |
91 assertEquals(9, argv2(7, 8, 9)); | |
92 | 45 |
93 | 46 |
94 // Test that calling a lazily compiled function with | 47 function g(x) { |
95 // an unexpected number of arguments works. | 48 var arguments; |
96 function f(a) { return arguments.length; }; | 49 assertEquals("arguments", x); |
97 assertEquals(3, f(1, 2, 3)); | 50 assertEquals(1, arguments.length); |
| 51 assertEquals("[object Arguments]", '' + arguments); |
| 52 }; |
| 53 |
| 54 g("arguments"); |
| 55 |
| 56 |
| 57 function h(x) { |
| 58 assertEquals("arguments", x); |
| 59 assertEquals(1, arguments.length); |
| 60 assertEquals("[object Arguments]", '' + arguments); |
| 61 var arguments = "foobar"; |
| 62 assertEquals("arguments", x); |
| 63 assertEquals(6, arguments.length); |
| 64 assertEquals("foobar", '' + arguments); |
| 65 }; |
| 66 |
| 67 h("arguments"); |
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