shop.balmet.com

Compiler.php (7346B)

---

 <?php
 
 /*
  * This file is part of Twig.
  *
  * (c) 2009 Fabien Potencier
  * (c) 2009 Armin Ronacher
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
  */
 
 /**
  * Compiles a node to PHP code.
  *
  * @author Fabien Potencier <fabien@symfony.com>
  */
 class Twig_Compiler implements Twig_CompilerInterface
 {
     protected $lastLine;
     protected $source;
     protected $indentation;
     protected $env;
     protected $debugInfo = array();
     protected $sourceOffset;
     protected $sourceLine;
     protected $filename;
 
     /**
      * Constructor.
      *
      * @param Twig_Environment $env The twig environment instance
      */
     public function __construct(Twig_Environment $env)
     {
         $this->env = $env;
     }
 
     public function getFilename()
     {
         return $this->filename;
     }
 
     /**
      * Returns the environment instance related to this compiler.
      *
      * @return Twig_Environment The environment instance
      */
     public function getEnvironment()
     {
         return $this->env;
     }
 
     /**
      * Gets the current PHP code after compilation.
      *
      * @return string The PHP code
      */
     public function getSource()
     {
         return $this->source;
     }
 
     /**
      * Compiles a node.
      *
      * @param Twig_NodeInterface $node        The node to compile
      * @param int                $indentation The current indentation
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function compile(Twig_NodeInterface $node, $indentation = 0)
     {
         $this->lastLine = null;
         $this->source = '';
         $this->debugInfo = array();
         $this->sourceOffset = 0;
         // source code starts at 1 (as we then increment it when we encounter new lines)
         $this->sourceLine = 1;
         $this->indentation = $indentation;
 
         if ($node instanceof Twig_Node_Module) {
             $this->filename = $node->getAttribute('filename');
         }
 
         $node->compile($this);
 
         return $this;
     }
 
     public function subcompile(Twig_NodeInterface $node, $raw = true)
     {
         if (false === $raw) {
             $this->addIndentation();
         }
 
         $node->compile($this);
 
         return $this;
     }
 
     /**
      * Adds a raw string to the compiled code.
      *
      * @param string $string The string
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function raw($string)
     {
         $this->source .= $string;
 
         return $this;
     }
 
     /**
      * Writes a string to the compiled code by adding indentation.
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function write()
     {
         $strings = func_get_args();
         foreach ($strings as $string) {
             $this->addIndentation();
             $this->source .= $string;
         }
 
         return $this;
     }
 
     /**
      * Appends an indentation to the current PHP code after compilation.
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function addIndentation()
     {
         $this->source .= str_repeat(' ', $this->indentation * 4);
 
         return $this;
     }
 
     /**
      * Adds a quoted string to the compiled code.
      *
      * @param string $value The string
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function string($value)
     {
         $this->source .= sprintf('"%s"', addcslashes($value, "\0\t\"\$\\"));
 
         return $this;
     }
 
     /**
      * Returns a PHP representation of a given value.
      *
      * @param mixed $value The value to convert
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function repr($value)
     {
         if (is_int($value) || is_float($value)) {
             if (false !== $locale = setlocale(LC_NUMERIC, 0)) {
                 setlocale(LC_NUMERIC, 'C');
             }
 
             $this->raw($value);
 
             if (false !== $locale) {
                 setlocale(LC_NUMERIC, $locale);
             }
         } elseif (null === $value) {
             $this->raw('null');
         } elseif (is_bool($value)) {
             $this->raw($value ? 'true' : 'false');
         } elseif (is_array($value)) {
             $this->raw('array(');
             $first = true;
             foreach ($value as $key => $v) {
                 if (!$first) {
                     $this->raw(', ');
                 }
                 $first = false;
                 $this->repr($key);
                 $this->raw(' => ');
                 $this->repr($v);
             }
             $this->raw(')');
         } else {
             $this->string($value);
         }
 
         return $this;
     }
 
     /**
      * Adds debugging information.
      *
      * @param Twig_NodeInterface $node The related twig node
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function addDebugInfo(Twig_NodeInterface $node)
     {
         if ($node->getLine() != $this->lastLine) {
             $this->write(sprintf("// line %d\n", $node->getLine()));
 
             // when mbstring.func_overload is set to 2
             // mb_substr_count() replaces substr_count()
             // but they have different signatures!
             if (((int) ini_get('mbstring.func_overload')) & 2) {
                 // this is much slower than the "right" version
                 $this->sourceLine += mb_substr_count(mb_substr($this->source, $this->sourceOffset), "\n");
             } else {
                 $this->sourceLine += substr_count($this->source, "\n", $this->sourceOffset);
             }
             $this->sourceOffset = strlen($this->source);
             $this->debugInfo[$this->sourceLine] = $node->getLine();
 
             $this->lastLine = $node->getLine();
         }
 
         return $this;
     }
 
     public function getDebugInfo()
     {
         ksort($this->debugInfo);
 
         return $this->debugInfo;
     }
 
     /**
      * Indents the generated code.
      *
      * @param int $step The number of indentation to add
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function indent($step = 1)
     {
         $this->indentation += $step;
 
         return $this;
     }
 
     /**
      * Outdents the generated code.
      *
      * @param int $step The number of indentation to remove
      *
      * @return Twig_Compiler The current compiler instance
      *
      * @throws LogicException When trying to outdent too much so the indentation would become negative
      */
     public function outdent($step = 1)
     {
         // can't outdent by more steps than the current indentation level
         if ($this->indentation < $step) {
             throw new LogicException('Unable to call outdent() as the indentation would become negative');
         }
 
         $this->indentation -= $step;
 
         return $this;
     }
 
     public function getVarName()
     {
         return sprintf('__internal_%s', hash('sha256', uniqid(mt_rand(), true), false));
     }
 }