From 4f5b44bd3bd490309eb2ba7b44df4769816ba729 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nicolas=20L=C5=93uillet?= Date: Sat, 3 Aug 2013 19:26:54 +0200 Subject: twig implementation --- inc/3rdparty/Twig/NodeVisitor/Optimizer.php | 246 ---------------------------- 1 file changed, 246 deletions(-) delete mode 100644 inc/3rdparty/Twig/NodeVisitor/Optimizer.php (limited to 'inc/3rdparty/Twig/NodeVisitor/Optimizer.php') diff --git a/inc/3rdparty/Twig/NodeVisitor/Optimizer.php b/inc/3rdparty/Twig/NodeVisitor/Optimizer.php deleted file mode 100644 index a254def7..00000000 --- a/inc/3rdparty/Twig/NodeVisitor/Optimizer.php +++ /dev/null @@ -1,246 +0,0 @@ - - */ -class Twig_NodeVisitor_Optimizer implements Twig_NodeVisitorInterface -{ - const OPTIMIZE_ALL = -1; - const OPTIMIZE_NONE = 0; - const OPTIMIZE_FOR = 2; - const OPTIMIZE_RAW_FILTER = 4; - const OPTIMIZE_VAR_ACCESS = 8; - - protected $loops = array(); - protected $optimizers; - protected $prependedNodes = array(); - protected $inABody = false; - - /** - * Constructor. - * - * @param integer $optimizers The optimizer mode - */ - public function __construct($optimizers = -1) - { - if (!is_int($optimizers) || $optimizers > 2) { - throw new InvalidArgumentException(sprintf('Optimizer mode "%s" is not valid.', $optimizers)); - } - - $this->optimizers = $optimizers; - } - - /** - * {@inheritdoc} - */ - public function enterNode(Twig_NodeInterface $node, Twig_Environment $env) - { - if (self::OPTIMIZE_FOR === (self::OPTIMIZE_FOR & $this->optimizers)) { - $this->enterOptimizeFor($node, $env); - } - - if (!version_compare(phpversion(), '5.4.0RC1', '>=') && self::OPTIMIZE_VAR_ACCESS === (self::OPTIMIZE_VAR_ACCESS & $this->optimizers) && !$env->isStrictVariables() && !$env->hasExtension('sandbox')) { - if ($this->inABody) { - if (!$node instanceof Twig_Node_Expression) { - if (get_class($node) !== 'Twig_Node') { - array_unshift($this->prependedNodes, array()); - } - } else { - $node = $this->optimizeVariables($node, $env); - } - } elseif ($node instanceof Twig_Node_Body) { - $this->inABody = true; - } - } - - return $node; - } - - /** - * {@inheritdoc} - */ - public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env) - { - $expression = $node instanceof Twig_Node_Expression; - - if (self::OPTIMIZE_FOR === (self::OPTIMIZE_FOR & $this->optimizers)) { - $this->leaveOptimizeFor($node, $env); - } - - if (self::OPTIMIZE_RAW_FILTER === (self::OPTIMIZE_RAW_FILTER & $this->optimizers)) { - $node = $this->optimizeRawFilter($node, $env); - } - - $node = $this->optimizePrintNode($node, $env); - - if (self::OPTIMIZE_VAR_ACCESS === (self::OPTIMIZE_VAR_ACCESS & $this->optimizers) && !$env->isStrictVariables() && !$env->hasExtension('sandbox')) { - if ($node instanceof Twig_Node_Body) { - $this->inABody = false; - } elseif ($this->inABody) { - if (!$expression && get_class($node) !== 'Twig_Node' && $prependedNodes = array_shift($this->prependedNodes)) { - $nodes = array(); - foreach (array_unique($prependedNodes) as $name) { - $nodes[] = new Twig_Node_SetTemp($name, $node->getLine()); - } - - $nodes[] = $node; - $node = new Twig_Node($nodes); - } - } - } - - return $node; - } - - protected function optimizeVariables($node, $env) - { - if ('Twig_Node_Expression_Name' === get_class($node) && $node->isSimple()) { - $this->prependedNodes[0][] = $node->getAttribute('name'); - - return new Twig_Node_Expression_TempName($node->getAttribute('name'), $node->getLine()); - } - - return $node; - } - - /** - * Optimizes print nodes. - * - * It replaces: - * - * * "echo $this->render(Parent)Block()" with "$this->display(Parent)Block()" - * - * @param Twig_NodeInterface $node A Node - * @param Twig_Environment $env The current Twig environment - */ - protected function optimizePrintNode($node, $env) - { - if (!$node instanceof Twig_Node_Print) { - return $node; - } - - if ( - $node->getNode('expr') instanceof Twig_Node_Expression_BlockReference || - $node->getNode('expr') instanceof Twig_Node_Expression_Parent - ) { - $node->getNode('expr')->setAttribute('output', true); - - return $node->getNode('expr'); - } - - return $node; - } - - /** - * Removes "raw" filters. - * - * @param Twig_NodeInterface $node A Node - * @param Twig_Environment $env The current Twig environment - */ - protected function optimizeRawFilter($node, $env) - { - if ($node instanceof Twig_Node_Expression_Filter && 'raw' == $node->getNode('filter')->getAttribute('value')) { - return $node->getNode('node'); - } - - return $node; - } - - /** - * Optimizes "for" tag by removing the "loop" variable creation whenever possible. - * - * @param Twig_NodeInterface $node A Node - * @param Twig_Environment $env The current Twig environment - */ - protected function enterOptimizeFor($node, $env) - { - if ($node instanceof Twig_Node_For) { - // disable the loop variable by default - $node->setAttribute('with_loop', false); - array_unshift($this->loops, $node); - } elseif (!$this->loops) { - // we are outside a loop - return; - } - - // when do we need to add the loop variable back? - - // the loop variable is referenced for the current loop - elseif ($node instanceof Twig_Node_Expression_Name && 'loop' === $node->getAttribute('name')) { - $this->addLoopToCurrent(); - } - - // block reference - elseif ($node instanceof Twig_Node_BlockReference || $node instanceof Twig_Node_Expression_BlockReference) { - $this->addLoopToCurrent(); - } - - // include without the only attribute - elseif ($node instanceof Twig_Node_Include && !$node->getAttribute('only')) { - $this->addLoopToAll(); - } - - // the loop variable is referenced via an attribute - elseif ($node instanceof Twig_Node_Expression_GetAttr - && (!$node->getNode('attribute') instanceof Twig_Node_Expression_Constant - || 'parent' === $node->getNode('attribute')->getAttribute('value') - ) - && (true === $this->loops[0]->getAttribute('with_loop') - || ($node->getNode('node') instanceof Twig_Node_Expression_Name - && 'loop' === $node->getNode('node')->getAttribute('name') - ) - ) - ) { - $this->addLoopToAll(); - } - } - - /** - * Optimizes "for" tag by removing the "loop" variable creation whenever possible. - * - * @param Twig_NodeInterface $node A Node - * @param Twig_Environment $env The current Twig environment - */ - protected function leaveOptimizeFor($node, $env) - { - if ($node instanceof Twig_Node_For) { - array_shift($this->loops); - } - } - - protected function addLoopToCurrent() - { - $this->loops[0]->setAttribute('with_loop', true); - } - - protected function addLoopToAll() - { - foreach ($this->loops as $loop) { - $loop->setAttribute('with_loop', true); - } - } - - /** - * {@inheritdoc} - */ - public function getPriority() - { - return 255; - } -} -- cgit v1.2.3