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Side by Side Diff: test/mjsunit/harmony/regexp-sticky.js

Issue 580123002: Revert "RegExp: Add support for the ES6-proposed sticky flag" (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 3 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
27
28 // Flags: --harmony-regexps
29
30 var re = /foo.bar/;
31
32 assertTrue(!!"foo*bar".match(re));
33 assertTrue(!!"..foo*bar".match(re));
34
35 var plain = /foobar/;
36
37 assertTrue(!!"foobar".match(plain));
38 assertTrue(!!"..foobar".match(plain));
39
40 var sticky = /foo.bar/y;
41
42 assertTrue(!!"foo*bar".match(sticky));
43 assertEquals(0, sticky.lastIndex);
44 assertFalse(!!"..foo*bar".match(sticky));
45
46 var stickyplain = /foobar/y;
47
48 assertTrue(!!"foobar".match(stickyplain));
49 assertEquals(0, stickyplain.lastIndex);
50 assertFalse(!!"..foobar".match(stickyplain));
51
52 var global = /foo.bar/g;
53
54 assertTrue(global.test("foo*bar"));
55 assertFalse(global.test("..foo*bar"));
56 global.lastIndex = 0;
57 assertTrue(global.test("..foo*bar"));
58
59 var plainglobal = /foobar/g;
60
61 assertTrue(plainglobal.test("foobar"));
62 assertFalse(plainglobal.test("foobar"));
63 plainglobal.lastIndex = 0;
64 assertTrue(plainglobal.test("foobar"));
65
66 var stickyglobal = /foo.bar/gy;
67
68 assertTrue(stickyglobal.test("foo*bar"));
69 assertEquals(7, stickyglobal.lastIndex);
70 assertFalse(stickyglobal.test("..foo*bar"));
71 stickyglobal.lastIndex = 0;
72 assertFalse(stickyglobal.test("..foo*bar"));
73 stickyglobal.lastIndex = 2;
74 assertTrue(stickyglobal.test("..foo*bar"));
75 assertEquals(9, stickyglobal.lastIndex);
76
77 var stickyplainglobal = /foobar/yg;
78 assertTrue(stickyplainglobal.sticky);
79 stickyplainglobal.sticky = false;
80
81 assertTrue(stickyplainglobal.test("foobar"));
82 assertEquals(6, stickyplainglobal.lastIndex);
83 assertFalse(stickyplainglobal.test("..foobar"));
84 stickyplainglobal.lastIndex = 0;
85 assertFalse(stickyplainglobal.test("..foobar"));
86 stickyplainglobal.lastIndex = 2;
87 assertTrue(stickyplainglobal.test("..foobar"));
88 assertEquals(8, stickyplainglobal.lastIndex);
89
90 assertEquals("/foo.bar/gy", "" + stickyglobal);
91 assertEquals("/foo.bar/g", "" + global);
92
93 assertTrue(stickyglobal.sticky);
94 stickyglobal.sticky = false;
95 assertTrue(stickyglobal.sticky);
96
97 var stickyglobal2 = new RegExp("foo.bar", "gy");
98 assertTrue(stickyglobal2.test("foo*bar"));
99 assertEquals(7, stickyglobal2.lastIndex);
100 assertFalse(stickyglobal2.test("..foo*bar"));
101 stickyglobal2.lastIndex = 0;
102 assertFalse(stickyglobal2.test("..foo*bar"));
103 stickyglobal2.lastIndex = 2;
104 assertTrue(stickyglobal2.test("..foo*bar"));
105 assertEquals(9, stickyglobal2.lastIndex);
106
107 assertEquals("/foo.bar/gy", "" + stickyglobal2);
108
109 assertTrue(stickyglobal2.sticky);
110 stickyglobal2.sticky = false;
111 assertTrue(stickyglobal2.sticky);
112
113 sticky.lastIndex = -1; // Causes sticky regexp to fail fast
114 assertFalse(sticky.test("..foo.bar"));
115 assertEquals(0, sticky.lastIndex);
116
117 sticky.lastIndex = -1; // Causes sticky regexp to fail fast
118 assertFalse(!!sticky.exec("..foo.bar"));
119 assertEquals(0, sticky.lastIndex);
120
121 // ES6 draft says: Even when the y flag is used with a pattern, ^ always
122 // matches only at the beginning of Input, or (if Multiline is true) at the
123 // beginning of a line.
124 var hat = /^foo/y;
125 hat.lastIndex = 2;
126 assertFalse(hat.test("..foo"));
127
128 var mhat = /^foo/my;
129 mhat.lastIndex = 2;
130 assertFalse(mhat.test("..foo"));
131 mhat.lastIndex = 2;
132 assertTrue(mhat.test(".\nfoo"));
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