Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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ConstantScanner.php
001 <?php
002 /**
003 * Zend Framework (http://framework.zend.com/)
004 *
005 * @link http://github.com/zendframework/zf2 for the canonical source repository
006 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
007 * @license http://framework.zend.com/license/new-bsd New BSD License
008 */
009
010 namespace Zend\Code\Scanner;
011
012 use Zend\Code\Annotation;
013 use Zend\Code\Exception;
014 use Zend\Code\NameInformation;
015
016 class ConstantScanner implements ScannerInterface
017 {
018 /**
019 * @var bool
020 */
021 protected $isScanned = false;
022
023 /**
024 * @var array
025 */
026 protected $tokens;
027
028 /**
029 * @var NameInformation
030 */
031 protected $nameInformation;
032
033 /**
034 * @var string
035 */
036 protected $class;
037
038 /**
039 * @var ClassScanner
040 */
041 protected $scannerClass;
042
043 /**
044 * @var int
045 */
046 protected $lineStart;
047
048 /**
049 * @var string
050 */
051 protected $docComment;
052
053 /**
054 * @var string
055 */
056 protected $name;
057
058 /**
059 * @var string
060 */
061 protected $value;
062
063 /**
064 * Constructor
065 *
066 * @param array $constantTokens
067 * @param NameInformation $nameInformation
068 */
069 public function __construct(array $constantTokens, NameInformation $nameInformation = null)
070 {
071 $this->tokens = $constantTokens;
072 $this->nameInformation = $nameInformation;
073 }
074
075 /**
076 * @param string $class
077 */
078 public function setClass($class)
079 {
080 $this->class = $class;
081 }
082
083 /**
084 * @param ClassScanner $scannerClass
085 */
086 public function setScannerClass(ClassScanner $scannerClass)
087 {
088 $this->scannerClass = $scannerClass;
089 }
090
091 /**
092 * @return ClassScanner
093 */
094 public function getClassScanner()
095 {
096 return $this->scannerClass;
097 }
098
099 /**
100 * @return string
101 */
102 public function getName()
103 {
104 $this->scan();
105 return $this->name;
106 }
107
108 /**
109 * @return string
110 */
111 public function getValue()
112 {
113 $this->scan();
114 return $this->value;
115 }
116
117 /**
118 * @return string
119 */
120 public function getDocComment()
121 {
122 $this->scan();
123 return $this->docComment;
124 }
125
126 /**
127 * @param Annotation\AnnotationManager $annotationManager
128 * @return AnnotationScanner
129 */
130 public function getAnnotations(Annotation\AnnotationManager $annotationManager)
131 {
132 if (($docComment = $this->getDocComment()) == '') {
133 return false;
134 }
135
136 return new AnnotationScanner($annotationManager, $docComment, $this->nameInformation);
137 }
138
139 /**
140 * @return string
141 */
142 public function __toString()
143 {
144 $this->scan();
145 return var_export($this, true);
146 }
147
148 /**
149 * Scan tokens
150 *
151 * @throws Exception\RuntimeException
152 */
153 protected function scan()
154 {
155 if ($this->isScanned) {
156 return;
157 }
158
159 if (!$this->tokens) {
160 throw new Exception\RuntimeException('No tokens were provided');
161 }
162
163 /**
164 * Variables & Setup
165 */
166 $tokens = &$this->tokens;
167
168 reset($tokens);
169
170 SCANNER_TOP:
171
172 $token = current($tokens);
173
174 if (!is_string($token)) {
175 list($tokenType, $tokenContent, $tokenLine) = $token;
176
177 switch ($tokenType) {
178 case T_DOC_COMMENT:
179 if ($this->docComment === null && $this->name === null) {
180 $this->docComment = $tokenContent;
181 }
182 goto SCANNER_CONTINUE;
183 // fall-through
184
185 case T_STRING:
186 $string = (is_string($token)) ? $token : $tokenContent;
187
188 if (null === $this->name) {
189 $this->name = $string;
190 } else {
191 if ('self' == strtolower($string)) {
192 list($tokenNextType, $tokenNextContent, $tokenNextLine) = next($tokens);
193
194 if ('::' == $tokenNextContent) {
195 list($tokenNextType, $tokenNextContent, $tokenNextLine) = next($tokens);
196
197 if ($this->getClassScanner()->getConstant($tokenNextContent)) {
198 $this->value = $this->getClassScanner()->getConstant($tokenNextContent)->getValue();
199 }
200 }
201 }
202 }
203
204 goto SCANNER_CONTINUE;
205 // fall-through
206
207 case T_CONSTANT_ENCAPSED_STRING:
208 case T_DNUMBER:
209 case T_LNUMBER:
210 $string = (is_string($token)) ? $token : $tokenContent;
211
212 if (substr($string, 0, 1) === '"' || substr($string, 0, 1) === "'") {
213 $this->value = substr($string, 1, -1); // Remove quotes
214 } else {
215 $this->value = $string;
216 }
217 goto SCANNER_CONTINUE;
218 // fall-trough
219
220 default:
221 goto SCANNER_CONTINUE;
222 }
223 }
224
225 SCANNER_CONTINUE:
226
227 if (next($this->tokens) === false) {
228 goto SCANNER_END;
229 }
230 goto SCANNER_TOP;
231
232 SCANNER_END:
233
234 $this->isScanned = true;
235 }
236 }
237