lainchan/inc/contrib/Twig/Error.php

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2011-10-05 00:22:53 -04:00
<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Twig base exception.
*
* @package twig
* @author Fabien Potencier <fabien@symfony.com>
*/
class Twig_Error extends Exception
{
protected $lineno;
protected $filename;
protected $rawMessage;
protected $previous;
/**
* Constructor.
*
* @param string $message The error message
* @param integer $lineno The template line where the error occurred
* @param string $filename The template file name where the error occurred
* @param Exception $previous The previous exception
*/
public function __construct($message, $lineno = -1, $filename = null, Exception $previous = null)
{
if (-1 === $lineno || null === $filename) {
list($lineno, $filename) = $this->findTemplateInfo(null !== $previous ? $previous : $this, $lineno, $filename);
}
$this->lineno = $lineno;
$this->filename = $filename;
$this->rawMessage = $message;
$this->updateRepr();
if (version_compare(PHP_VERSION, '5.3.0', '<')) {
$this->previous = $previous;
parent::__construct($this->message);
} else {
parent::__construct($this->message, 0, $previous);
}
}
/**
* Gets the raw message.
*
* @return string The raw message
*/
public function getRawMessage()
{
return $this->rawMessage;
}
/**
* Gets the filename where the error occurred.
*
* @return string The filename
*/
public function getTemplateFile()
{
return $this->filename;
}
/**
* Sets the filename where the error occurred.
*
* @param string $filename The filename
*/
public function setTemplateFile($filename)
{
$this->filename = $filename;
$this->updateRepr();
}
/**
* Gets the template line where the error occurred.
*
* @return integer The template line
*/
public function getTemplateLine()
{
return $this->lineno;
}
/**
* Sets the template line where the error occurred.
*
* @param integer $lineno The template line
*/
public function setTemplateLine($lineno)
{
$this->lineno = $lineno;
$this->updateRepr();
}
/**
* For PHP < 5.3.0, provides access to the getPrevious() method.
*
* @param string $method The method name
* @param array $arguments The parameters to be passed to the method
*
* @return Exception The previous exception or null
*/
public function __call($method, $arguments)
{
if ('getprevious' == strtolower($method)) {
return $this->previous;
}
throw new BadMethodCallException(sprintf('Method "Twig_Error::%s()" does not exist.', $method));
}
protected function updateRepr()
{
$this->message = $this->rawMessage;
$dot = false;
if ('.' === substr($this->message, -1)) {
$this->message = substr($this->message, 0, -1);
$dot = true;
}
if (null !== $this->filename) {
$this->message .= sprintf(' in %s', json_encode($this->filename));
}
if ($this->lineno >= 0) {
$this->message .= sprintf(' at line %d', $this->lineno);
}
if ($dot) {
$this->message .= '.';
}
}
protected function findTemplateInfo(Exception $e, $currentLine, $currentFile)
{
if (!function_exists('token_get_all')) {
return array($currentLine, $currentFile);
}
$traces = $e->getTrace();
foreach ($traces as $i => $trace) {
if (!isset($trace['class']) || 'Twig_Template' === $trace['class']) {
continue;
}
$r = new ReflectionClass($trace['class']);
if (!$r->implementsInterface('Twig_TemplateInterface')) {
continue;
}
if (!is_file($r->getFilename())) {
// probably an eval()'d code
return array($currentLine, $currentFile);
}
if (0 === $i) {
$line = $e->getLine();
} else {
$line = isset($traces[$i - 1]['line']) ? $traces[$i - 1]['line'] : -log(0);
}
$tokens = token_get_all(file_get_contents($r->getFilename()));
$templateline = -1;
$template = null;
foreach ($tokens as $token) {
if (isset($token[2]) && $token[2] >= $line) {
return array($templateline, $template);
}
if (T_COMMENT === $token[0] && null === $template && preg_match('#/\* +(.+) +\*/#', $token[1], $match)) {
$template = $match[1];
} elseif (T_COMMENT === $token[0] && preg_match('#^//\s*line (\d+)\s*$#', $token[1], $match)) {
$templateline = $match[1];
}
}
return array($currentLine, $template);
}
return array($currentLine, $currentFile);
}
}