/** * Called before child nodes are visited. * * @param IfwPsn_Vendor_Twig_NodeInterface $node The node to visit * @param IfwPsn_Vendor_Twig_Environment $env The Twig environment instance * * @return IfwPsn_Vendor_Twig_NodeInterface The modified node */ public function enterNode(IfwPsn_Vendor_Twig_NodeInterface $node, IfwPsn_Vendor_Twig_Environment $env) { if ($node instanceof IfwPsn_Vendor_Twig_Node_Module) { $this->inAModule = true; $this->tags = array(); $this->filters = array(); $this->functions = array(); return $node; } elseif ($this->inAModule) { // look for tags if ($node->getNodeTag()) { $this->tags[] = $node->getNodeTag(); } // look for filters if ($node instanceof IfwPsn_Vendor_Twig_Node_Expression_Filter) { $this->filters[] = $node->getNode('filter')->getAttribute('value'); } // look for functions if ($node instanceof IfwPsn_Vendor_Twig_Node_Expression_Function) { $this->functions[] = $node->getAttribute('name'); } // wrap print to check __toString() calls if ($node instanceof IfwPsn_Vendor_Twig_Node_Print) { return new IfwPsn_Vendor_Twig_Node_SandboxedPrint($node->getNode('expr'), $node->getLine(), $node->getNodeTag()); } } return $node; }
/** * Called before child nodes are visited. * * @param IfwPsn_Vendor_Twig_NodeInterface $node The node to visit * @param IfwPsn_Vendor_Twig_Environment $env The Twig environment instance * * @return IfwPsn_Vendor_Twig_NodeInterface The modified node */ public function enterNode(IfwPsn_Vendor_Twig_NodeInterface $node, IfwPsn_Vendor_Twig_Environment $env) { if ($node instanceof IfwPsn_Vendor_Twig_Node_Module) { if ($env->hasExtension('escaper') && ($defaultStrategy = $env->getExtension('escaper')->getDefaultStrategy($node->getAttribute('filename')))) { $this->defaultStrategy = $defaultStrategy; } $this->safeVars = array(); } elseif ($node instanceof IfwPsn_Vendor_Twig_Node_AutoEscape) { $this->statusStack[] = $node->getAttribute('value'); } elseif ($node instanceof IfwPsn_Vendor_Twig_Node_Block) { $this->statusStack[] = isset($this->blocks[$node->getAttribute('name')]) ? $this->blocks[$node->getAttribute('name')] : $this->needEscaping($env); } elseif ($node instanceof IfwPsn_Vendor_Twig_Node_Import) { $this->safeVars[] = $node->getNode('var')->getAttribute('name'); } return $node; }
protected function checkLoopUsageBody(IfwPsn_Vendor_Twig_TokenStream $stream, IfwPsn_Vendor_Twig_NodeInterface $node) { if ($node instanceof IfwPsn_Vendor_Twig_Node_Expression_GetAttr && $node->getNode('node') instanceof IfwPsn_Vendor_Twig_Node_Expression_Name && 'loop' == $node->getNode('node')->getAttribute('name')) { $attribute = $node->getNode('attribute'); if ($attribute instanceof IfwPsn_Vendor_Twig_Node_Expression_Constant && in_array($attribute->getAttribute('value'), array('length', 'revindex0', 'revindex', 'last'))) { throw new IfwPsn_Vendor_Twig_Error_Syntax(sprintf('The "loop.%s" variable is not defined when looping with a condition', $attribute->getAttribute('value')), $node->getLine(), $stream->getFilename()); } } // should check for parent.loop.XXX usage if ($node instanceof IfwPsn_Vendor_Twig_Node_For) { return; } foreach ($node as $n) { if (!$n) { continue; } $this->checkLoopUsageBody($stream, $n); } }
/** * Removes "raw" filters. * * @param IfwPsn_Vendor_Twig_NodeInterface $node A Node * @param IfwPsn_Vendor_Twig_Environment $env The current Twig environment */ protected function optimizeRawFilter(IfwPsn_Vendor_Twig_NodeInterface $node, IfwPsn_Vendor_Twig_Environment $env) { if ($node instanceof IfwPsn_Vendor_Twig_Node_Expression_Filter && 'raw' == $node->getNode('filter')->getAttribute('value')) { return $node->getNode('node'); } return $node; }