From: Fabien Potencier <fabien.potencier@gmail.com>
Date: Wed, 5 Jan 2011 19:15:19 +0000 (+0100)
Subject: added context support for functions and filters
X-Git-Url: http://git.silmor.de/gitweb/?a=commitdiff_plain;h=957a30af759c0210e8173d0d340b3bcb9163f26d;p=web%2Fkonrad%2Ftwig.git

added context support for functions and filters
---

diff --git a/CHANGELOG b/CHANGELOG
index 5f76db1..0291c6a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -14,6 +14,7 @@ Backward incompatibilities:
 
 Changes:
 
+ * added "needs_context" option for filters and functions (the context is then passed as a first argument)
  * added global variables support
  * made macros return their value instead of echoing directly (fixes calling a macro in sandbox mode)
  * added the "from" tag to import macros as functions
diff --git a/lib/Twig/Filter.php b/lib/Twig/Filter.php
index 2e1ddcb..3484df2 100644
--- a/lib/Twig/Filter.php
+++ b/lib/Twig/Filter.php
@@ -23,6 +23,7 @@ abstract class Twig_Filter implements Twig_FilterInterface
     {
         $this->options = array_merge(array(
             'needs_environment' => false,
+            'needs_context'     => false,
             'pre_escape'        => null,
         ), $options);
     }
@@ -32,6 +33,11 @@ abstract class Twig_Filter implements Twig_FilterInterface
         return $this->options['needs_environment'];
     }
 
+    public function needsContext()
+    {
+        return $this->options['needs_context'];
+    }
+
     public function getSafe(Twig_Node $filterArgs)
     {
         if (isset($this->options['is_safe'])) {
diff --git a/lib/Twig/Function.php b/lib/Twig/Function.php
index 9fcb655..99e9b77 100644
--- a/lib/Twig/Function.php
+++ b/lib/Twig/Function.php
@@ -23,6 +23,7 @@ abstract class Twig_Function implements Twig_FunctionInterface
     {
         $this->options = array_merge(array(
             'needs_environment' => false,
+            'needs_context'     => false,
         ), $options);
     }
 
@@ -31,6 +32,11 @@ abstract class Twig_Function implements Twig_FunctionInterface
         return $this->options['needs_environment'];
     }
 
+    public function needsContext()
+    {
+        return $this->options['needs_context'];
+    }
+
     public function getSafe(Twig_Node $functionArgs)
     {
         if (isset($this->options['is_safe'])) {
diff --git a/lib/Twig/Node/Expression/Filter.php b/lib/Twig/Node/Expression/Filter.php
index cf5ffb3..d39c364 100644
--- a/lib/Twig/Node/Expression/Filter.php
+++ b/lib/Twig/Node/Expression/Filter.php
@@ -54,7 +54,11 @@ class Twig_Node_Expression_Filter extends Twig_Node_Expression
 
     protected function compileFilter(Twig_Compiler $compiler, Twig_FilterInterface $filter)
     {
-        $compiler->raw($filter->compile().($filter->needsEnvironment() ? '($this->env, ' : '('));
+        $compiler
+            ->raw($filter->compile().'(')
+            ->raw($filter->needsEnvironment() ? '$this->env, ' : '')
+            ->raw($filter->needsContext() ? '$context, ' : '')
+        ;
 
         $this->getNode('node')->compile($compiler);
 
diff --git a/lib/Twig/Node/Expression/Function.php b/lib/Twig/Node/Expression/Function.php
index 23911bc..92ba789 100644
--- a/lib/Twig/Node/Expression/Function.php
+++ b/lib/Twig/Node/Expression/Function.php
@@ -22,7 +22,11 @@ class Twig_Node_Expression_Function extends Twig_Node_Expression
             throw new Twig_Error_Syntax(sprintf('The function "%s" does not exist', $this->getNode('name')->getAttribute('name')), $this->getLine());
         }
 
-        $compiler->raw($function->compile().($function->needsEnvironment() ? '($this->env, ' : '('));
+        $compiler
+            ->raw($function->compile().'(')
+            ->raw($function->needsEnvironment() ? '$this->env, ' : '')
+            ->raw($function->needsContext() ? '$context, ' : '')
+        ;
 
         $first = true;
         foreach ($this->getNode('arguments') as $node) {