--- /dev/null
+<?php
+/*
+ * 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.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\Common\Annotations;
+
+use SplFileObject;
+
+/**
+ * Parses a file for namespaces/use/class declarations.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Christian Kaps <christian.kaps@mohiva.com>
+ */
+final class PhpParser
+{
+ /**
+ * Parses a class.
+ *
+ * @param \ReflectionClass $class A <code>ReflectionClass</code> object.
+ *
+ * @return array A list with use statements in the form (Alias => FQN).
+ */
+ public function parseClass(\ReflectionClass $class)
+ {
+ if (method_exists($class, 'getUseStatements')) {
+ return $class->getUseStatements();
+ }
+
+ if (false === $filename = $class->getFilename()) {
+ return array();
+ }
+
+ $content = $this->getFileContent($filename, $class->getStartLine());
+
+ if (null === $content) {
+ return array();
+ }
+
+ $namespace = preg_quote($class->getNamespaceName());
+ $content = preg_replace('/^.*?(\bnamespace\s+' . $namespace . '\s*[;{].*)$/s', '\\1', $content);
+ $tokenizer = new TokenParser('<?php ' . $content);
+
+ $statements = $tokenizer->parseUseStatements($class->getNamespaceName());
+
+ return $statements;
+ }
+
+ /**
+ * Gets the content of the file right up to the given line number.
+ *
+ * @param string $filename The name of the file to load.
+ * @param integer $lineNumber The number of lines to read from file.
+ *
+ * @return string The content of the file.
+ */
+ private function getFileContent($filename, $lineNumber)
+ {
+ if ( ! is_file($filename)) {
+ return null;
+ }
+
+ $content = '';
+ $lineCnt = 0;
+ $file = new SplFileObject($filename);
+ while (!$file->eof()) {
+ if ($lineCnt++ == $lineNumber) {
+ break;
+ }
+
+ $content .= $file->fgets();
+ }
+
+ return $content;
+ }
+}