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Error.php
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Error.php
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<?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 === $filename) {
if ($trace = $this->getTemplateTrace()) {
if (-1 === $lineno) {
$lineno = $this->guessTemplateLine($trace);
}
if (null === $filename) {
$filename = $trace['object']->getTemplateName();
}
}
}
$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) {
$this->message .= sprintf(' in %s', is_string($this->filename) ? '"'.$this->filename.'"' : json_encode($this->filename));
}
if ($this->lineno >= 0) {
$this->message .= sprintf(' at line %d', $this->lineno);
}
if ($dot) {
$this->message .= '.';
}
}
protected function getTemplateTrace()
{
foreach (debug_backtrace() as $trace) {
if (isset($trace['object']) && $trace['object'] instanceof Twig_Template) {
return $trace;
}
}
}
protected function guessTemplateLine($trace)
{
if (isset($trace['line'])) {
foreach ($trace['object']->getDebugInfo() as $codeLine => $templateLine) {
if ($codeLine <= $trace['line']) {
return $templateLine;
}
}
}
return -1;
}
}