/branches/2.8.x/wb/include/Twig/Compiler.php - Annotate - WB 2.08.x - Tracking

wb-archiv283/branches/2.8.x/wb/include/Twig/Compiler.php @ 1854

-            darkviper
+<?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.
+ *
  * @package    twig
  * @author     Fabien Potencier <fabien@symfony.com>
  */
 class Twig_Compiler implements Twig_CompilerInterface
+{
     protected $lastLine;
     protected $source;
     protected $indentation;
     protected $env;
     protected $debugInfo;
     protected $sourceOffset;
     protected $sourceLine;
-            darkviper
+    protected $filename;
             darkviper
     /**
      * Constructor.
+     *
      * @param Twig_Environment $env The twig environment instance
      */
     public function __construct(Twig_Environment $env)
+    {
         $this->env = $env;
         $this->debugInfo = array();
+    }
-            darkviper
+    public function getFilename()
+    {
         return $this->filename;
+    }
-            darkviper
+    /**
      * 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 integer            $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->sourceOffset = 0;
-            darkviper
+        // source code starts at 1 (as we then increment it when we encounter new lines)
         $this->sourceLine = 1;
-            darkviper
+        $this->indentation = $indentation;
-            darkviper
+        if ($node instanceof Twig_Node_Module) {
             $this->filename = $node->getAttribute('filename');
+        }
-            darkviper
+        $node->compile($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.
+     *
-            darkviper
+     * @param string $string The string
             darkviper
      * @return Twig_Compiler The current compiler instance
      */
     public function raw($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;
+    }
-            darkviper
+    /**
      * Appends an indentation to the current PHP code after compilation.
+     *
      * @return Twig_Compiler The current compiler instance
      */
-            darkviper
+    public function addIndentation()
+    {
         $this->source .= str_repeat(' ', $this->indentation * 4);
         return $this;
+    }
     /**
      * Adds a quoted string to the compiled code.
+     *
-            darkviper
+     * @param string $value The string
             darkviper
      * @return Twig_Compiler The current compiler instance
      */
     public function string($value)
+    {
         $this->source .= sprintf('"%s"', addcslashes($value, "\0\t\"\$\\"));
         return $this;
+    }
     /**
      * Returns a PHP representation of a given value.
+     *
-            darkviper
+     * @param mixed $value The value to convert
             darkviper
      * @return Twig_Compiler The current compiler instance
      */
     public function repr($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(');
             $i = 0;
             foreach ($value as $key => $value) {
                 if ($i++) {
                     $this->raw(', ');
+                }
                 $this->repr($key);
                 $this->raw(' => ');
                 $this->repr($value);
+            }
             $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) {
-            darkviper
+            $this->write("// line {$node->getLine()}\n");
             // 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);
+            }
-            darkviper
+            $this->sourceOffset = strlen($this->source);
             $this->debugInfo[$this->sourceLine] = $node->getLine();
             $this->lastLine = $node->getLine();
+        }
         return $this;
+    }
     public function getDebugInfo()
+    {
         return $this->debugInfo;
+    }
     /**
      * Indents the generated code.
+     *
      * @param integer $step The number of indentation to add
+     *
      * @return Twig_Compiler The current compiler instance
      */
     public function indent($step = 1)
+    {
         $this->indentation += $step;
         return $this;
+    }
     /**
      * Outdents the generated code.
+     *
      * @param integer $step The number of indentation to remove
+     *
      * @return Twig_Compiler The current compiler instance
      */
     public function outdent($step = 1)
+    {
-            darkviper
+        // can't outdent by more steps that the current indentation level
         if ($this->indentation < $step) {
             throw new LogicException('Unable to call outdent() as the indentation would become negative');
+        }
-            darkviper
+        $this->indentation -= $step;
         return $this;
+    }
+}

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