1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --expose-gc --allow-natives-syntax
function test() {
var s1 = %NewString(26, true);
for (i = 0; i < 26; i++) %_OneByteSeqStringSetChar(i, 65, s1);
assertEquals("AAAAAAAAAAAAAAAAAAAAAAAAAA", s1);
%_OneByteSeqStringSetChar(25, 66, s1);
assertEquals("AAAAAAAAAAAAAAAAAAAAAAAAAB", s1);
for (i = 0; i < 26; i++) %_OneByteSeqStringSetChar(i, i+65, s1);
assertEquals("ABCDEFGHIJKLMNOPQRSTUVWXYZ", s1);
s1 = %TruncateString(s1, 13);
assertEquals("ABCDEFGHIJKLM", s1);
var s2 = %NewString(26, false);
for (i = 0; i < 26; i++) %_TwoByteSeqStringSetChar(i, 65, s2);
assertEquals("AAAAAAAAAAAAAAAAAAAAAAAAAA", s2);
%_TwoByteSeqStringSetChar(25, 66, s2);
assertEquals("AAAAAAAAAAAAAAAAAAAAAAAAAB", s2);
for (i = 0; i < 26; i++) %_TwoByteSeqStringSetChar(i, i+65, s2);
assertEquals("ABCDEFGHIJKLMNOPQRSTUVWXYZ", s2);
s2 = %TruncateString(s2, 13);
assertEquals("ABCDEFGHIJKLM", s2);
var s3 = %NewString(26, false);
for (i = 0; i < 26; i++) %_TwoByteSeqStringSetChar(i, i+1000, s3);
for (i = 0; i < 26; i++) assertEquals(s3[i], String.fromCharCode(i+1000));
var a = [];
for (var i = 0; i < 1000; i++) {
var s = %NewString(10000, i % 2 == 1);
a.push(s);
}
gc();
for (var i = 0; i < 1000; i++) {
assertEquals(10000, a[i].length);
a[i] = %TruncateString(a[i], 5000);
}
gc();
for (var i = 0; i < 1000; i++) {
assertEquals(5000, a[i].length);
}
}
test();
test();
%OptimizeFunctionOnNextCall(test);
test();
|
