PHP Twig_Node::getAttribute方法代码示例

 /**
  * Called before child nodes are visited.
  *
  * @param Twig_Node        $node The node to visit
  * @param Twig_Environment $env  The Twig environment instance
  *
  * @return Twig_Node The modified node
  */
 public function enterNode(Twig_Node $node, Twig_Environment $env)
 {
     if ($node instanceof Twig_Node_Module) {
         $this->inAModule = true;
         $this->tags = array();
         $this->filters = array();
         $this->functions = array();
         return $node;
     } elseif ($this->inAModule) {
         // look for tags
         if ($node->getNodeTag() && !isset($this->tags[$node->getNodeTag()])) {
             $this->tags[$node->getNodeTag()] = $node;
         }
         // look for filters
         if ($node instanceof Twig_Node_Expression_Filter && !isset($this->filters[$node->getNode('filter')->getAttribute('value')])) {
             $this->filters[$node->getNode('filter')->getAttribute('value')] = $node;
         }
         // look for functions
         if ($node instanceof Twig_Node_Expression_Function && !isset($this->functions[$node->getAttribute('name')])) {
             $this->functions[$node->getAttribute('name')] = $node;
         }
         // wrap print to check __toString() calls
         if ($node instanceof Twig_Node_Print) {
             return new Twig_Node_SandboxedPrint($node->getNode('expr'), $node->getLine(), $node->getNodeTag());
         }
     }
     return $node;
 }

 /**
  * Loads assets from the supplied node.
  *
  * @param \Twig_Node $node
  *
  * @return array An array of asset formulae indexed by name
  */
 private function loadNode(\Twig_Node $node)
 {
     $formulae = array();
     if ($node instanceof AsseticNode) {
         $formulae[$node->getAttribute('name')] = array($node->getAttribute('inputs'), $node->getAttribute('filters'), array('output' => $node->getAttribute('asset')->getTargetPath(), 'name' => $node->getAttribute('name'), 'debug' => $node->getAttribute('debug'), 'combine' => $node->getAttribute('combine'), 'vars' => $node->getAttribute('vars')));
     } elseif ($node instanceof \Twig_Node_Expression_Function) {
         $name = version_compare(\Twig_Environment::VERSION, '1.2.0-DEV', '<') ? $node->getNode('name')->getAttribute('name') : $node->getAttribute('name');
         if ($this->twig->getFunction($name) instanceof AsseticFilterFunction) {
             $arguments = array();
             foreach ($node->getNode('arguments') as $argument) {
                 $arguments[] = eval('return ' . $this->twig->compile($argument) . ';');
             }
             $invoker = $this->twig->getExtension('assetic')->getFilterInvoker($name);
             $inputs = isset($arguments[0]) ? (array) $arguments[0] : array();
             $filters = $invoker->getFilters();
             $options = array_replace($invoker->getOptions(), isset($arguments[1]) ? $arguments[1] : array());
             if (!isset($options['name'])) {
                 $options['name'] = $invoker->getFactory()->generateAssetName($inputs, $filters, $options);
             }
             $formulae[$options['name']] = array($inputs, $filters, $options);
         }
     }
     foreach ($node as $child) {
         if ($child instanceof \Twig_Node) {
             $formulae += $this->loadNode($child);
         }
     }
     if ($node->hasAttribute('embedded_templates')) {
         foreach ($node->getAttribute('embedded_templates') as $child) {
             $formulae += $this->loadNode($child);
         }
     }
     return $formulae;
 }

 /**
  * Loads assets from the supplied node.
  *
  * @param \Twig_Node $node
  *
  * @return array An array of asset formulae indexed by name
  */
 private function loadNode(\Twig_Node $node)
 {
     $formulae = array();
     if ($node instanceof AsseticNode) {
         $formulae[$node->getAttribute('name')] = array($node->getAttribute('inputs'), $node->getAttribute('filters'), array('output' => $node->getAttribute('asset')->getTargetPath(), 'name' => $node->getAttribute('name'), 'debug' => $node->getAttribute('debug'), 'combine' => $node->getAttribute('combine'), 'vars' => $node->getAttribute('vars')));
     } elseif ($node instanceof \Twig_Node_Expression_Function) {
         $name = $node->getAttribute('name');
         if ($this->twig->getFunction($name) instanceof AsseticFilterFunction) {
             $arguments = array();
             foreach ($node->getNode('arguments') as $argument) {
                 $arguments[] = eval('return ' . $this->twig->compile($argument) . ';');
             }
             $invoker = $this->twig->getExtension('assetic')->getFilterInvoker($name);
             $inputs = isset($arguments[0]) ? (array) $arguments[0] : array();
             $filters = $invoker->getFilters();
             $options = array_replace($invoker->getOptions(), isset($arguments[1]) ? $arguments[1] : array());
             if (!isset($options['name'])) {
                 $options['name'] = $invoker->getFactory()->generateAssetName($inputs, $filters, $options);
             }
             $formulae[$options['name']] = array($inputs, $filters, $options);
         }
     }
     foreach ($node as $child) {
         if ($child instanceof \Twig_Node) {
             $formulae += $this->loadNode($child);
         }
     }
     if ($node->hasAttribute('embedded_templates')) {
         foreach ($node->getAttribute('embedded_templates') as $child) {
             $formulae += $this->loadNode($child);
         }
     }
     $formulaes = array();
     $asseticDebug = $this->app['assetic.debug'];
     foreach ($formulae as $n => $f) {
         list($inputs, $filters, $options) = $f;
         // 當沒有資源或此資源已被解開過的時候
         if (count($inputs) > 0 && strlen($n) <= 7 && ($asseticDebug == true || $options['debug'] === true || $options['combine'] === false)) {
             $path = pathinfo($options['output']);
             $counter = 1;
             foreach ($inputs as $input) {
                 $inputPath = pathinfo($input);
                 $_name = $n . '_' . md5($input);
                 $_inputs = array($input);
                 $_filters = $filters;
                 $_options = array('output' => "{$path['dirname']}/{$path['filename']}_{$inputPath['filename']}_{$counter}.{$path['extension']}", 'name' => "{$path['filename']}_{$inputPath['filename']}_{$counter}") + $options;
                 $formulaes[$_name] = array($_inputs, $_filters, $_options);
                 $counter++;
             }
         } else {
             $formulaes[$n] = $f;
         }
     }
     $formulae = $formulaes;
     return $formulae;
 }

 protected function compileString(\Twig_Node $body)
 {
     if ($body instanceof \Twig_Node_Expression_Constant) {
         $msg = $body->getAttribute('value');
     } elseif ($body instanceof \Twig_Node_Text) {
         $msg = $body->getAttribute('data');
     } else {
         return $body;
     }
     return new \Twig_Node_Expression_Constant(trim($msg), $body->getLine());
 }

 /**
  * {@inheritdoc}
  */
 public function leaveNode(Twig_Node $node, Twig_Environment $env)
 {
     if ($node instanceof Twig_Node_Module) {
         $varName = $this->getVarName();
         $node->setNode('display_start', new Twig_Node(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::TEMPLATE, $node->getAttribute('filename'), $varName), $node->getNode('display_start'))));
         $node->setNode('display_end', new Twig_Node(array(new Twig_Profiler_Node_LeaveProfile($varName), $node->getNode('display_end'))));
     } elseif ($node instanceof Twig_Node_Block) {
         $varName = $this->getVarName();
         $node->setNode('body', new Twig_Node_Body(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::BLOCK, $node->getAttribute('name'), $varName), $node->getNode('body'), new Twig_Profiler_Node_LeaveProfile($varName))));
     } elseif ($node instanceof Twig_Node_Macro) {
         $varName = $this->getVarName();
         $node->setNode('body', new Twig_Node_Body(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::MACRO, $node->getAttribute('name'), $varName), $node->getNode('body'), new Twig_Profiler_Node_LeaveProfile($varName))));
     }
     return $node;
 }

 public static function process(\Twig_Node $node, Translations $translations, $file)
 {
     $fileReference = str_replace(realpath(self::$rootDir . '/../') . '/', "", $file);
     if ($node instanceof TransNode) {
         //Process nodes that {% trans %} blocks
         $body = new \Twig_Node_Expression_Constant($node->getNode('body')->getAttribute('data'), $node->getLine());
         $compiledTranslation = eval('return ' . self::$twig->compile($body) . ';');
         $translations->insert('', $compiledTranslation)->addReference($fileReference, $node->getLine());
     }
     if ($node instanceof \Twig_Node_Expression_Function) {
         //Process nodes that are function expressions
         if ($node->getAttribute('name') == '__') {
             //Check the function name for __()
             foreach ($node->getNode('arguments') as $argument) {
                 //Grab the argument
                 $key = eval('return ' . self::$twig->compile($argument) . ';');
                 $translations->insert('', $key)->addReference($fileReference, $node->getLine());
                 break;
                 //I only needed the first argument in my implementation
             }
         }
     }
     //Recursively loop through the AST
     foreach ($node as $child) {
         if ($child instanceof \Twig_Node) {
             self::process($child, $translations, $file);
         }
     }
 }

 private function loadNode(Node $node, $resource)
 {
     $assets = array();
     if ($node instanceof ExpressionFunction) {
         $name = $node->getAttribute('name');
         if ($name === $this->functionName) {
             $arguments = iterator_to_array($node->getNode('arguments'));
             if (!is_array($arguments)) {
                 throw new ResourceParsingException('arguments is not an array');
             }
             if (count($arguments) !== 1 && count($arguments) !== 2) {
                 throw new ResourceParsingException(sprintf('Expected exactly one or two arguments passed to function %s in %s at line %s', $this->functionName, $resource, $node->getLine()));
             }
             if (!$arguments[0] instanceof ConstantFunction) {
                 throw new ResourceParsingException(sprintf('Argument passed to function %s must be text node to parse without context. File %s, line %s', $this->functionName, $resource, $node->getLine()));
             }
             $assets[] = $arguments[0]->getAttribute('value');
             return $assets;
         }
     }
     foreach ($node as $child) {
         if ($child instanceof Node) {
             $assets = array_merge($assets, $this->loadNode($child, $resource));
         }
     }
     return $assets;
 }

 /**
  * {@inheritdoc}
  */
 protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
 {
     if ($node instanceof Twig_Node_Module) {
         if ($env->hasExtension('escaper') && ($defaultStrategy = $env->getExtension('escaper')->getDefaultStrategy($node->getAttribute('filename')))) {
             $this->defaultStrategy = $defaultStrategy;
         }
         $this->safeVars = array();
     } elseif ($node instanceof Twig_Node_AutoEscape) {
         $this->statusStack[] = $node->getAttribute('value');
     } elseif ($node instanceof Twig_Node_Block) {
         $this->statusStack[] = isset($this->blocks[$node->getAttribute('name')]) ? $this->blocks[$node->getAttribute('name')] : $this->needEscaping($env);
     } elseif ($node instanceof Twig_Node_Import) {
         $this->safeVars[] = $node->getNode('var')->getAttribute('name');
     }
     return $node;
 }

 protected function compileString(\Twig_Node $body, \Twig_Node_Expression_Array $vars, $ignoreStrictCheck = false)
 {
     // Extract the message to be translated, or return if it doesn't need translations
     if ($body instanceof \Twig_Node_Expression_Constant) {
         $msg = $body->getAttribute('value');
     } elseif ($body instanceof \Twig_Node_Text) {
         $msg = $body->getAttribute('data');
     } else {
         return array($body, $vars);
     }
     // Escape variable passed using 'with'
     // {% safetrans with {...} %}{% endsafetrans %}
     $vars = $this->escapeWithVariables($vars, $body->getLine());
     // Escape variables that needs to be read from $context
     // {% safetrans %}...{% endsafetrans %}
     $vars = $this->escapeContextVariables($msg, $vars, $body->getLine());
     return array(new \Twig_Node_Expression_Constant(str_replace('%%', '%', trim($msg)), $body->getLine()), $vars);
 }

 protected function doLeaveNode(\Twig_Node $node, \Twig_Environment $env)
 {
     if ($node instanceof WhitespaceCollapse || $node instanceof \Twig_Node_Block || $node instanceof \Twig_Node_AutoEscape) {
         array_pop($this->statusStack);
     } elseif ($node instanceof \Twig_Node_BlockReference) {
         $this->blocks[$node->getAttribute('name')] = $this->needCollapsing();
     } elseif ($node instanceof \Twig_Node_Text && $this->needCollapsing()) {
         $text = $node->getAttribute('data');
         if ($this->previousNode instanceof \Twig_Node_Text && ctype_space(substr($this->previousNode->getAttribute('data'), -1))) {
             $text = ltrim($text);
         }
         if ($text === '') {
             return false;
         }
         $node->setAttribute('data', preg_replace(array('/\\s{2,}/', '/<\\s/', '/\\s>/'), array(' ', '<', '>'), $text));
     }
     $this->previousNode = $node;
     return $node;
 }

 /**
  * Find placeholder nodes recursively.
  *
  * @param Twig_Node $node
  * @param array $placeholders
  */
 protected function getVariables($node, &$placeholders)
 {
     if ($node instanceof Curry_Twig_Node_Placeholder) {
         $placeholders[$node->getAttribute('name')] = true;
     }
     foreach ($node->getIterator() as $n) {
         if ($n instanceof Twig_Node) {
             $this->getVariables($n, $placeholders);
         }
     }
 }

 public function __construct(\Twig_Node $left, \Twig_Node $right, $lineno)
 {
     parent::__construct(array('left' => $left, 'right' => $right), array(), $lineno);
     if ($left instanceof \Twig_Node_Expression_Name) {
         $this->arguments = [$left->getAttribute('name')];
     } elseif ($left instanceof Arguments) {
         $this->arguments = $left->getArguments();
     } else {
         throw new \InvalidArgumentException('Invalid argument\'s list for lambda.');
     }
     if (count($this->arguments) !== count(array_flip($this->arguments))) {
         throw new \InvalidArgumentException('Each lambda argument must have unique name.');
     }
 }

 protected function compileString(\Twig_Node $body, \Twig_Node_Expression_Array $vars, $ignoreStrictCheck = false)
 {
     if ($body instanceof \Twig_Node_Expression_Constant) {
         $msg = $body->getAttribute('value');
     } elseif ($body instanceof \Twig_Node_Text) {
         $msg = $body->getAttribute('data');
     } else {
         return array($body, $vars);
     }
     preg_match_all('/(?<!%)%([^%]+)%/', $msg, $matches);
     foreach ($matches[1] as $var) {
         $key = new \Twig_Node_Expression_Constant('%' . $var . '%', $body->getLine());
         if (!$vars->hasElement($key)) {
             if ('count' === $var && null !== $this->getNode('count')) {
                 $vars->addElement($this->getNode('count'), $key);
             } else {
                 $varExpr = new \Twig_Node_Expression_Name($var, $body->getLine());
                 $varExpr->setAttribute('ignore_strict_check', $ignoreStrictCheck);
                 $vars->addElement($varExpr, $key);
             }
         }
     }
     return array(new \Twig_Node_Expression_Constant(str_replace('%%', '%', trim($msg)), $body->getLine()), $vars);
 }

 /**
  * Compiles a node.
  *
  * @param Twig_Node $node        The node to compile
  * @param int       $indentation The current indentation
  *
  * @return Twig_Compiler The current compiler instance
  */
 public function compile(Twig_Node $node, $indentation = 0)
 {
     $this->lastLine = null;
     $this->source = '';
     $this->debugInfo = array();
     $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;
 }

 /**
  * Loads assets from the supplied node.
  *
  * @return array An array of asset formulae indexed by name
  */
 private function loadNode(\Twig_Node $node)
 {
     $assets = array();
     if ($node instanceof AsseticNode) {
         $assets[$node->getAttribute('name')] = array($node->getAttribute('inputs'), $node->getAttribute('filters'), array('output' => $node->getAttribute('output'), 'name' => $node->getAttribute('name'), 'debug' => $node->getAttribute('debug')));
     }
     foreach ($node as $child) {
         if ($child instanceof \Twig_Node) {
             $assets += $this->loadNode($child);
         }
     }
     return $assets;
 }