diff options
| author | Michael Save <savetheinternet@tinyboard.org> | 2012-04-09 20:52:26 +1000 |
|---|---|---|
| committer | Michael Save <savetheinternet@tinyboard.org> | 2012-04-09 20:52:26 +1000 |
| commit | 874b8cbf002e9d8bf0ff39671e1501165016320a (patch) | |
| tree | 1428acec23fef6c607e10fd355d88af31c2029ed /inc/contrib/Twig/NodeVisitor/SafeAnalysis.php | |
| parent | 69c9a9dd452299e0e8f7335966a1d0b4036df583 (diff) | |
inc/contrib -> inc/lib
Diffstat (limited to 'inc/contrib/Twig/NodeVisitor/SafeAnalysis.php')
| -rw-r--r-- | inc/contrib/Twig/NodeVisitor/SafeAnalysis.php | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/inc/contrib/Twig/NodeVisitor/SafeAnalysis.php b/inc/contrib/Twig/NodeVisitor/SafeAnalysis.php deleted file mode 100644 index 5961ba29..00000000 --- a/inc/contrib/Twig/NodeVisitor/SafeAnalysis.php +++ /dev/null @@ -1,107 +0,0 @@ -<?php - -class Twig_NodeVisitor_SafeAnalysis implements Twig_NodeVisitorInterface -{ - protected $data = array(); - - public function getSafe(Twig_NodeInterface $node) - { - $hash = spl_object_hash($node); - if (isset($this->data[$hash])) { - foreach($this->data[$hash] as $bucket) { - if ($bucket['key'] === $node) { - return $bucket['value']; - } - } - } - return null; - } - - protected function setSafe(Twig_NodeInterface $node, array $safe) - { - $hash = spl_object_hash($node); - if (isset($this->data[$hash])) { - foreach($this->data[$hash] as &$bucket) { - if ($bucket['key'] === $node) { - $bucket['value'] = $safe; - return; - } - } - } - $this->data[$hash][] = array( - 'key' => $node, - 'value' => $safe, - ); - } - - public function enterNode(Twig_NodeInterface $node, Twig_Environment $env) - { - return $node; - } - - public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env) - { - if ($node instanceof Twig_Node_Expression_Constant) { - // constants are marked safe for all - $this->setSafe($node, array('all')); - } elseif ($node instanceof Twig_Node_Expression_BlockReference) { - // blocks are safe by definition - $this->setSafe($node, array('all')); - } elseif ($node instanceof Twig_Node_Expression_Parent) { - // parent block is safe by definition - $this->setSafe($node, array('all')); - } elseif ($node instanceof Twig_Node_Expression_Conditional) { - // intersect safeness of both operands - $safe = $this->intersectSafe($this->getSafe($node->getNode('expr2')), $this->getSafe($node->getNode('expr3'))); - $this->setSafe($node, $safe); - } elseif ($node instanceof Twig_Node_Expression_Filter) { - // filter expression is safe when the filter is safe - $name = $node->getNode('filter')->getAttribute('value'); - $args = $node->getNode('arguments'); - if (false !== $filter = $env->getFilter($name)) { - $this->setSafe($node, $filter->getSafe($args)); - } else { - $this->setSafe($node, array()); - } - } elseif ($node instanceof Twig_Node_Expression_Function) { - // function expression is safe when the function is safe - $name = $node->getAttribute('name'); - $args = $node->getNode('arguments'); - $function = $env->getFunction($name); - if (false !== $function) { - $this->setSafe($node, $function->getSafe($args)); - } else { - $this->setSafe($node, array()); - } - } else { - $this->setSafe($node, array()); - } - - return $node; - } - - protected function intersectSafe(array $a = null, array $b = null) - { - if (null === $a || null === $b) { - return array(); - } - - if (in_array('all', $a)) { - return $b; - } - - if (in_array('all', $b)) { - return $a; - } - - return array_intersect($a, $b); - } - - /** - * {@inheritdoc} - */ - public function getPriority() - { - return 0; - } -} |
