Upgrade Twig library

1 files changed, 65 insertions, 17 deletions

diff --git a/inc/lib/Twig/Compiler.php b/inc/lib/Twig/Compiler.php
index db2e8de4..99aecbcc 100644
--- a/inc/lib/Twig/Compiler.php
+++ b/inc/lib/Twig/Compiler.php
@@ -13,8 +13,7 @@
 /**
  * Compiles a node to PHP code.
  *
- * @package    twig
- * @author     Fabien Potencier <fabien@symfony.com>
+ * @author Fabien Potencier <fabien@symfony.com>
  */
 class Twig_Compiler implements Twig_CompilerInterface
 {
@@ -22,6 +21,10 @@ class Twig_Compiler implements Twig_CompilerInterface
     protected $source;
     protected $indentation;
     protected $env;
+    protected $debugInfo;
+    protected $sourceOffset;
+    protected $sourceLine;
+    protected $filename;
 
     /**
      * Constructor.
@@ -31,6 +34,12 @@ class Twig_Compiler implements Twig_CompilerInterface
     public function __construct(Twig_Environment $env)
     {
         $this->env = $env;
+        $this->debugInfo = array();
+    }
+
+    public function getFilename()
+    {
+        return $this->filename;
     }
 
     /**
@@ -56,8 +65,8 @@ class Twig_Compiler implements Twig_CompilerInterface
     /**
      * Compiles a node.
      *
-     * @param Twig_NodeInterface $node   The node to compile
-     * @param integer            $indent The current indentation
+     * @param Twig_NodeInterface $node        The node to compile
+     * @param integer            $indentation The current indentation
      *
      * @return Twig_Compiler The current compiler instance
      */
@@ -65,8 +74,15 @@ class Twig_Compiler implements Twig_CompilerInterface
     {
         $this->lastLine = null;
         $this->source = '';
+        $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;
@@ -86,7 +102,7 @@ class Twig_Compiler implements Twig_CompilerInterface
     /**
      * Adds a raw string to the compiled code.
      *
-     * @param  string $string The string
+     * @param string $string The string
      *
      * @return Twig_Compiler The current compiler instance
      */
@@ -113,6 +129,11 @@ class Twig_Compiler implements Twig_CompilerInterface
         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);
@@ -123,7 +144,7 @@ class Twig_Compiler implements Twig_CompilerInterface
     /**
      * Adds a quoted string to the compiled code.
      *
-     * @param  string $string The string
+     * @param string $value The string
      *
      * @return Twig_Compiler The current compiler instance
      */
@@ -137,19 +158,27 @@ class Twig_Compiler implements Twig_CompilerInterface
     /**
      * Returns a PHP representation of a given value.
      *
-     * @param  mixed $value The value to convert
+     * @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);
-        } else if (null === $value) {
+
+            if (false !== $locale) {
+                setlocale(LC_NUMERIC, $locale);
+            }
+        } elseif (null === $value) {
             $this->raw('null');
-        } else if (is_bool($value)) {
+        } elseif (is_bool($value)) {
             $this->raw($value ? 'true' : 'false');
-        } else if (is_array($value)) {
+        } elseif (is_array($value)) {
             $this->raw('array(');
             $i = 0;
             foreach ($value as $key => $value) {
@@ -178,17 +207,35 @@ class Twig_Compiler implements Twig_CompilerInterface
     public function addDebugInfo(Twig_NodeInterface $node)
     {
         if ($node->getLine() != $this->lastLine) {
-            $this->lastLine = $node->getLine();
             $this->write("// line {$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);
+            }
+            $this->sourceOffset = strlen($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 $indent The number of indentation to add
+     * @param integer $step The number of indentation to add
      *
      * @return Twig_Compiler The current compiler instance
      */
@@ -202,18 +249,19 @@ class Twig_Compiler implements Twig_CompilerInterface
     /**
      * Outdents the generated code.
      *
-     * @param integer $indent The number of indentation to remove
+     * @param integer $step The number of indentation to remove
      *
      * @return Twig_Compiler The current compiler instance
      */
     public function outdent($step = 1)
     {
-        $this->indentation -= $step;
-
-        if ($this->indentation < 0) {
-            throw new Twig_Error('Unable to call outdent() as the indentation would become negative');
+        // 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;
     }
 }