Error.php in Zircon Profile 8

File

vendor/twig/twig/lib/Twig/Error.php

<?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.
 *
 * This exception class and its children must only be used when
 * an error occurs during the loading of a template, when a syntax error
 * is detected in a template, or when rendering a template. Other
 * errors must use regular PHP exception classes (like when the template
 * cache directory is not writable for instance).
 *
 * To help debugging template issues, this class tracks the original template
 * name and line where the error occurred.
 *
 * Whenever possible, you must set these information (original template name
 * and line number) yourself by passing them to the constructor. If some or all
 * these information are not available from where you throw the exception, then
 * this class will guess them automatically (when the line number is set to -1
 * and/or the filename is set to null). As this is a costly operation, this
 * can be disabled by passing false for both the filename and the line number
 * when creating a new instance of this class.
 *
 * @author Fabien Potencier <[e-mail]>
 */
class Twig_Error extends Exception {
  protected $lineno;
  protected $filename;
  protected $rawMessage;
  protected $previous;

  /**
   * Constructor.
   *
   * Set both the line number and the filename to false to
   * disable automatic guessing of the original template name
   * and line number.
   *
   * Set the line number to -1 to enable its automatic guessing.
   * Set the filename to null to enable its automatic guessing.
   *
   * By default, automatic guessing is enabled.
   *
   * @param string    $message  The error message
   * @param int       $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 (PHP_VERSION_ID < 50300) {
      $this->previous = $previous;
      parent::__construct('');
    }
    else {
      parent::__construct('', 0, $previous);
    }
    $this->lineno = $lineno;
    $this->filename = $filename;
    if (-1 === $this->lineno || null === $this->filename) {
      $this
        ->guessTemplateInfo();
    }
    $this->rawMessage = $message;
    $this
      ->updateRepr();
  }

  /**
   * 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 int The template line
   */
  public function getTemplateLine() {
    return $this->lineno;
  }

  /**
   * Sets the template line where the error occurred.
   *
   * @param int $lineno The template line
   */
  public function setTemplateLine($lineno) {
    $this->lineno = $lineno;
    $this
      ->updateRepr();
  }
  public function guess() {
    $this
      ->guessTemplateInfo();
    $this
      ->updateRepr();
  }

  /**
   * For PHP < 5.3.0, provides access to the getPrevious() method.
   *
   * @param string $method    The method name
   * @param array  $arguments The parameters to be passed to the method
   *
   * @return Exception The previous exception or null
   *
   * @throws BadMethodCallException
   */
  public function __call($method, $arguments) {
    if ('getprevious' == strtolower($method)) {
      return $this->previous;
    }
    throw new BadMethodCallException(sprintf('Method "Twig_Error::%s()" does not exist.', $method));
  }
  public function appendMessage($rawMessage) {
    $this->rawMessage .= $rawMessage;
    $this
      ->updateRepr();
  }

  /**
   * @internal
   */
  protected function updateRepr() {
    $this->message = $this->rawMessage;
    $dot = false;
    if ('.' === substr($this->message, -1)) {
      $this->message = substr($this->message, 0, -1);
      $dot = true;
    }
    $questionMark = false;
    if ('?' === substr($this->message, -1)) {
      $this->message = substr($this->message, 0, -1);
      $questionMark = true;
    }
    if ($this->filename) {
      if (is_string($this->filename) || is_object($this->filename) && method_exists($this->filename, '__toString')) {
        $filename = sprintf('"%s"', $this->filename);
      }
      else {
        $filename = json_encode($this->filename);
      }
      $this->message .= sprintf(' in %s', $filename);
    }
    if ($this->lineno && $this->lineno >= 0) {
      $this->message .= sprintf(' at line %d', $this->lineno);
    }
    if ($dot) {
      $this->message .= '.';
    }
    if ($questionMark) {
      $this->message .= '?';
    }
  }

  /**
   * @internal
   */
  protected function guessTemplateInfo() {
    $template = null;
    $templateClass = null;
    if (PHP_VERSION_ID >= 50306) {
      $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS | DEBUG_BACKTRACE_PROVIDE_OBJECT);
    }
    else {
      $backtrace = debug_backtrace();
    }
    foreach ($backtrace as $trace) {
      if (isset($trace['object']) && $trace['object'] instanceof Twig_Template && 'Twig_Template' !== get_class($trace['object'])) {
        $currentClass = get_class($trace['object']);
        $isEmbedContainer = 0 === strpos($templateClass, $currentClass);
        if (null === $this->filename || $this->filename == $trace['object']
          ->getTemplateName() && !$isEmbedContainer) {
          $template = $trace['object'];
          $templateClass = get_class($trace['object']);
        }
      }
    }

    // update template filename
    if (null !== $template && null === $this->filename) {
      $this->filename = $template
        ->getTemplateName();
    }
    if (null === $template || $this->lineno > -1) {
      return;
    }
    $r = new ReflectionObject($template);
    $file = $r
      ->getFileName();

    // hhvm has a bug where eval'ed files comes out as the current directory
    if (is_dir($file)) {
      $file = '';
    }
    $exceptions = array(
      $e = $this,
    );
    while (($e instanceof self || method_exists($e, 'getPrevious')) && ($e = $e
      ->getPrevious())) {
      $exceptions[] = $e;
    }
    while ($e = array_pop($exceptions)) {
      $traces = $e
        ->getTrace();
      array_unshift($traces, array(
        'file' => $e
          ->getFile(),
        'line' => $e
          ->getLine(),
      ));
      while ($trace = array_shift($traces)) {
        if (!isset($trace['file']) || !isset($trace['line']) || $file != $trace['file']) {
          continue;
        }
        foreach ($template
          ->getDebugInfo() as $codeLine => $templateLine) {
          if ($codeLine <= $trace['line']) {

            // update template line
            $this->lineno = $templateLine;
            return;
          }
        }
      }
    }
  }

}

Classes

Name	Description
Twig_Error	Twig base exception.