196 lines
5.2 KiB
PHP
196 lines
5.2 KiB
PHP
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<?php
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/*
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* This file is part of Twig.
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*
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* (c) 2009 Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* Twig base exception.
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*
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* @package twig
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Twig_Error extends Exception
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{
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protected $lineno;
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protected $filename;
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protected $rawMessage;
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protected $previous;
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/**
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* Constructor.
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*
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* @param string $message The error message
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* @param integer $lineno The template line where the error occurred
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* @param string $filename The template file name where the error occurred
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* @param Exception $previous The previous exception
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*/
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public function __construct($message, $lineno = -1, $filename = null, Exception $previous = null)
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{
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if (-1 === $lineno || null === $filename) {
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list($lineno, $filename) = $this->findTemplateInfo(null !== $previous ? $previous : $this, $lineno, $filename);
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}
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$this->lineno = $lineno;
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$this->filename = $filename;
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$this->rawMessage = $message;
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$this->updateRepr();
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if (version_compare(PHP_VERSION, '5.3.0', '<')) {
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$this->previous = $previous;
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parent::__construct($this->message);
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} else {
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parent::__construct($this->message, 0, $previous);
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}
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}
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/**
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* Gets the raw message.
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*
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* @return string The raw message
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*/
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public function getRawMessage()
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{
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return $this->rawMessage;
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}
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/**
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* Gets the filename where the error occurred.
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*
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* @return string The filename
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*/
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public function getTemplateFile()
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{
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return $this->filename;
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}
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/**
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* Sets the filename where the error occurred.
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*
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* @param string $filename The filename
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*/
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public function setTemplateFile($filename)
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{
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$this->filename = $filename;
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$this->updateRepr();
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}
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/**
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* Gets the template line where the error occurred.
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*
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* @return integer The template line
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*/
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public function getTemplateLine()
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{
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return $this->lineno;
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}
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/**
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* Sets the template line where the error occurred.
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*
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* @param integer $lineno The template line
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*/
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public function setTemplateLine($lineno)
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{
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$this->lineno = $lineno;
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$this->updateRepr();
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}
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/**
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* For PHP < 5.3.0, provides access to the getPrevious() method.
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*
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* @param string $method The method name
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* @param array $arguments The parameters to be passed to the method
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*
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* @return Exception The previous exception or null
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*/
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public function __call($method, $arguments)
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{
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if ('getprevious' == strtolower($method)) {
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return $this->previous;
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}
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throw new BadMethodCallException(sprintf('Method "Twig_Error::%s()" does not exist.', $method));
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}
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protected function updateRepr()
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{
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$this->message = $this->rawMessage;
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$dot = false;
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if ('.' === substr($this->message, -1)) {
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$this->message = substr($this->message, 0, -1);
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$dot = true;
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}
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if (null !== $this->filename) {
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$this->message .= sprintf(' in %s', json_encode($this->filename));
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}
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if ($this->lineno >= 0) {
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$this->message .= sprintf(' at line %d', $this->lineno);
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}
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if ($dot) {
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$this->message .= '.';
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}
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}
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protected function findTemplateInfo(Exception $e, $currentLine, $currentFile)
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{
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if (!function_exists('token_get_all')) {
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return array($currentLine, $currentFile);
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}
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$traces = $e->getTrace();
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foreach ($traces as $i => $trace) {
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if (!isset($trace['class']) || 'Twig_Template' === $trace['class']) {
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continue;
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}
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$r = new ReflectionClass($trace['class']);
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if (!$r->implementsInterface('Twig_TemplateInterface')) {
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continue;
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}
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if (!is_file($r->getFilename())) {
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// probably an eval()'d code
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return array($currentLine, $currentFile);
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}
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if (0 === $i) {
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$line = $e->getLine();
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} else {
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$line = isset($traces[$i - 1]['line']) ? $traces[$i - 1]['line'] : -log(0);
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}
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$tokens = token_get_all(file_get_contents($r->getFilename()));
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$templateline = -1;
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$template = null;
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foreach ($tokens as $token) {
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if (isset($token[2]) && $token[2] >= $line) {
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return array($templateline, $template);
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}
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if (T_COMMENT === $token[0] && null === $template && preg_match('#/\* +(.+) +\*/#', $token[1], $match)) {
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$template = $match[1];
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} elseif (T_COMMENT === $token[0] && preg_match('#^//\s*line (\d+)\s*$#', $token[1], $match)) {
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$templateline = $match[1];
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}
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}
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return array($currentLine, $template);
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}
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return array($currentLine, $currentFile);
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}
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}
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