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1 <?php | |
2 | |
3 // Protocol Buffers - Google's data interchange format | |
4 // Copyright 2008 Google Inc. All rights reserved. | |
5 // https://developers.google.com/protocol-buffers/ | |
6 // | |
7 // Redistribution and use in source and binary forms, with or without | |
8 // modification, are permitted provided that the following conditions are | |
9 // met: | |
10 // | |
11 // * Redistributions of source code must retain the above copyright | |
12 // notice, this list of conditions and the following disclaimer. | |
13 // * Redistributions in binary form must reproduce the above | |
14 // copyright notice, this list of conditions and the following disclaimer | |
15 // in the documentation and/or other materials provided with the | |
16 // distribution. | |
17 // * Neither the name of Google Inc. nor the names of its | |
18 // contributors may be used to endorse or promote products derived from | |
19 // this software without specific prior written permission. | |
20 // | |
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | |
33 namespace Google\Protobuf\Internal; | |
34 | |
35 use Google\Protobuf\Internal\GPBType; | |
36 use Google\Protobuf\Internal\RepeatedField; | |
37 | |
38 class GPBUtil | |
39 { | |
40 public function divideInt64ToInt32($value, &$high, &$low, $trim = false) | |
41 { | |
42 $isNeg = (bccomp($value, 0) < 0); | |
43 if ($isNeg) { | |
44 $value = bcsub(0, $value); | |
45 } | |
46 $high = (int) bcdiv(bcadd($value, 1), 4294967296); | |
47 $low = (int) bcmod($value, 4294967296); | |
48 if ($isNeg) { | |
49 $high = ~$high; | |
50 $low = ~$low; | |
51 $low++; | |
52 if (!$low) { | |
53 $high++; | |
54 } | |
55 } | |
56 | |
57 if ($trim) { | |
58 $high = 0; | |
59 } | |
60 } | |
61 | |
62 | |
63 public static function checkString(&$var, $check_utf8) | |
64 { | |
65 if (is_array($var) || is_object($var)) { | |
66 trigger_error("Expect string.", E_USER_ERROR); | |
67 return; | |
68 } | |
69 if (!is_string($var)) { | |
70 $var = strval($var); | |
71 } | |
72 if ($check_utf8 && !preg_match('//u', $var)) { | |
73 trigger_error("Expect utf-8 encoding.", E_USER_ERROR); | |
74 return; | |
75 } | |
76 } | |
77 | |
78 public static function checkEnum(&$var) | |
79 { | |
80 static::checkInt32($var); | |
81 } | |
82 | |
83 public static function checkInt32(&$var) | |
84 { | |
85 if (is_numeric($var)) { | |
86 $var = intval($var); | |
87 } else { | |
88 trigger_error("Expect integer.", E_USER_ERROR); | |
89 } | |
90 } | |
91 | |
92 public static function checkUint32(&$var) | |
93 { | |
94 if (is_numeric($var)) { | |
95 if (PHP_INT_SIZE === 8) { | |
96 $var = intval($var); | |
97 $var |= ((-(($var >> 31) & 0x1)) & ~0xFFFFFFFF); | |
98 } else { | |
99 if (bccomp($var, 0x7FFFFFFF) > 0) { | |
100 $var = bcsub($var, "4294967296"); | |
101 } | |
102 $var = (int) $var; | |
103 } | |
104 } else { | |
105 trigger_error("Expect integer.", E_USER_ERROR); | |
106 } | |
107 } | |
108 | |
109 public static function checkInt64(&$var) | |
110 { | |
111 if (is_numeric($var)) { | |
112 if (PHP_INT_SIZE == 8) { | |
113 $var = intval($var); | |
114 } else { | |
115 $var = bcdiv($var, 1, 0); | |
116 } | |
117 } else { | |
118 trigger_error("Expect integer.", E_USER_ERROR); | |
119 } | |
120 } | |
121 | |
122 public static function checkUint64(&$var) | |
123 { | |
124 if (is_numeric($var)) { | |
125 if (PHP_INT_SIZE == 8) { | |
126 $var = intval($var); | |
127 } else { | |
128 $var = bcdiv($var, 1, 0); | |
129 } | |
130 } else { | |
131 trigger_error("Expect integer.", E_USER_ERROR); | |
132 } | |
133 } | |
134 | |
135 public static function checkFloat(&$var) | |
136 { | |
137 if (is_float($var) || is_numeric($var)) { | |
138 $var = floatval($var); | |
139 } else { | |
140 trigger_error("Expect float.", E_USER_ERROR); | |
141 } | |
142 } | |
143 | |
144 public static function checkDouble(&$var) | |
145 { | |
146 if (is_float($var) || is_numeric($var)) { | |
147 $var = floatval($var); | |
148 } else { | |
149 trigger_error("Expect float.", E_USER_ERROR); | |
150 } | |
151 } | |
152 | |
153 public static function checkBool(&$var) | |
154 { | |
155 if (is_array($var) || is_object($var)) { | |
156 trigger_error("Expect boolean.", E_USER_ERROR); | |
157 return; | |
158 } | |
159 $var = boolval($var); | |
160 } | |
161 | |
162 public static function checkMessage(&$var, $klass) | |
163 { | |
164 if (!$var instanceof $klass && !is_null($var)) { | |
165 trigger_error("Expect message.", E_USER_ERROR); | |
166 } | |
167 } | |
168 | |
169 public static function checkRepeatedField(&$var, $type, $klass = null) | |
170 { | |
171 if (!$var instanceof RepeatedField) { | |
172 trigger_error("Expect repeated field.", E_USER_ERROR); | |
173 } | |
174 if ($var->getType() != $type) { | |
175 trigger_error( | |
176 "Expect repeated field of different type.", | |
177 E_USER_ERROR); | |
178 } | |
179 if ($var->getType() === GPBType::MESSAGE && | |
180 $var->getClass() !== $klass) { | |
181 trigger_error( | |
182 "Expect repeated field of different message.", | |
183 E_USER_ERROR); | |
184 } | |
185 } | |
186 | |
187 public static function Int64($value) | |
188 { | |
189 return new Int64($value); | |
190 } | |
191 | |
192 public static function Uint64($value) | |
193 { | |
194 return new Uint64($value); | |
195 } | |
196 } | |
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