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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
--TEST--
SPL: Iterator aggregating inner iterator's methods
--SKIPIF--
<?php if (!extension_loaded("spl")) print "skip"; ?>
--FILE--
<?php
class NumericArrayIterator implements Iterator
{
protected $a;
protected $i = 0;
public function __construct($a)
{
echo __METHOD__ . "\n";
$this->a = $a;
}
public function rewind()
{
echo __METHOD__ . "\n";
$this->i = 0;
}
public function valid()
{
$ret = $this->i < count($this->a);
echo __METHOD__ . '(' . ($ret ? 'true' : 'false') . ")\n";
return $ret;
}
public function key()
{
echo __METHOD__ . "\n";
return $this->i;
}
public function current()
{
echo __METHOD__ . "\n";
return $this->a[$this->i];
}
public function next()
{
echo __METHOD__ . "\n";
$this->i++;
}
public function greaterThan($comp)
{
echo get_class($this) . '::' . __FUNCTION__ . '(' . $comp . ")\n";
return $this->current() > $comp;
}
}
class SeekableNumericArrayIterator extends NumericArrayIterator implements SeekableIterator
{
public function seek($index)
{
if ($index < count($this->a)) {
$this->i = $index;
}
echo __METHOD__ . '(' . $index . ")\n";
}
}
$a = array(1, 2, 3, 4, 5);
$it = new LimitIterator(new NumericArrayIterator($a), 1, 3);
foreach ($it as $v)
{
print $v . ' is ' . ($it->greaterThan(2) ? 'greater than 2' : 'less than or equal 2') . "\n";
}
echo "===SEEKABLE===\n";
$a = array(1, 2, 3, 4, 5);
$it = new LimitIterator(new SeekableNumericArrayIterator($a), 1, 3);
foreach($it as $v)
{
print $v . ' is ' . ($it->greaterThan(2) ? 'greater than 2' : 'less than or equal 2') . "\n";
}
echo "===STACKED===\n";
echo "Shows '2 is greater than 2' because the test is actually done with the current value which is 3.\n";
$a = array(1, 2, 3, 4, 5);
$it = new CachingIterator(new LimitIterator(new SeekableNumericArrayIterator($a), 1, 3));
foreach($it as $v)
{
print $v . ' is ' . ($it->greaterThan(2) ? 'greater than 2' : 'less than or equal 2') . "\n";
}
?>
===DONE===
<?php exit(0); ?>
--EXPECT--
NumericArrayIterator::__construct
NumericArrayIterator::rewind
NumericArrayIterator::valid(true)
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
NumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
2 is less than or equal 2
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
NumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
3 is greater than 2
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
NumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
4 is greater than 2
NumericArrayIterator::next
===SEEKABLE===
NumericArrayIterator::__construct
NumericArrayIterator::rewind
SeekableNumericArrayIterator::seek(1)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
SeekableNumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
2 is less than or equal 2
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
SeekableNumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
3 is greater than 2
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
SeekableNumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
4 is greater than 2
NumericArrayIterator::next
===STACKED===
Shows '2 is greater than 2' because the test is actually done with the current value which is 3.
NumericArrayIterator::__construct
NumericArrayIterator::rewind
SeekableNumericArrayIterator::seek(1)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
SeekableNumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
2 is greater than 2
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
SeekableNumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
3 is greater than 2
NumericArrayIterator::next
SeekableNumericArrayIterator::greaterThan(2)
NumericArrayIterator::current
4 is greater than 2
===DONE===
|
