PHP Definition\NodeInterface类代码示例

 /**
  * Processes a node tree.
  *
  * @param NodeInterface $configTree The node tree to process
  * @param array $configs An array of configuration items
  * @return boolean
  */
 public function process(NodeInterface $configTree, array $configs)
 {
     $configs = Extension::normalizeKeys($configs);
     $currentConfig = array();
     foreach ($configs as $config) {
         $config = $configTree->normalize($config);
         $currentConfig = $configTree->merge($currentConfig, $config);
     }
     return $configTree->finalize($currentConfig);
 }

 /**
  * @param \Symfony\Component\Config\Definition\NodeInterface $tree
  *
  * @return array
  */
 public function getProviderNames(NodeInterface $tree)
 {
     foreach ($tree->getChildren() as $providers) {
         if ($providers->getName() !== 'providers') {
             continue;
         }
         $children = $providers->getPrototype()->getChildren();
         $providers = array_diff(array_keys($children), array('type', 'aliases', 'namespace'));
         return $providers;
     }
     return array();
 }

 /**
  * Adds a child node.
  *
  * @param NodeInterface $node The child node to add
  *
  * @throws \InvalidArgumentException when the child node has no name
  * @throws \InvalidArgumentException when the child node's name is not unique
  */
 public function addChild(NodeInterface $node)
 {
     $name = $node->getName();
     if (empty($name)) {
         throw new \InvalidArgumentException('Child nodes must be named.');
     }
     if (isset($this->children[$name])) {
         throw new \InvalidArgumentException(sprintf('A child node named "%s" already exists.', $name));
     }
     $this->children[$name] = $node;
 }

 /**
  * @param NodeInterface $node
  * @param int           $depth
  * @param bool          $prototypedArray
  */
 private function writeNode(NodeInterface $node, $depth = 0, $prototypedArray = false)
 {
     $comments = array();
     $default = '';
     $defaultArray = null;
     $children = null;
     $example = $node->getExample();
     // defaults
     if ($node instanceof ArrayNode) {
         $children = $node->getChildren();
         if ($node instanceof PrototypedArrayNode) {
             $children = $this->getPrototypeChildren($node);
         }
         if (!$children) {
             if ($node->hasDefaultValue() && count($defaultArray = $node->getDefaultValue())) {
                 $default = '';
             } elseif (!is_array($example)) {
                 $default = '[]';
             }
         }
     } elseif ($node instanceof EnumNode) {
         $comments[] = 'One of ' . implode('; ', array_map('json_encode', $node->getValues()));
         $default = $node->hasDefaultValue() ? Inline::dump($node->getDefaultValue()) : '~';
     } else {
         $default = '~';
         if ($node->hasDefaultValue()) {
             $default = $node->getDefaultValue();
             if (is_array($default)) {
                 if (count($defaultArray = $node->getDefaultValue())) {
                     $default = '';
                 } elseif (!is_array($example)) {
                     $default = '[]';
                 }
             } else {
                 $default = Inline::dump($default);
             }
         }
     }
     // required?
     if ($node->isRequired()) {
         $comments[] = 'Required';
     }
     // example
     if ($example && !is_array($example)) {
         $comments[] = 'Example: ' . $example;
     }
     $default = (string) $default != '' ? ' ' . $default : '';
     $comments = count($comments) ? '# ' . implode(', ', $comments) : '';
     $key = $prototypedArray ? '-' : $node->getName() . ':';
     $text = rtrim(sprintf('%-21s%s %s', $key, $default, $comments), ' ');
     if ($info = $node->getInfo()) {
         $this->writeLine('');
         // indenting multi-line info
         $info = str_replace("\n", sprintf("\n%" . $depth * 4 . 's# ', ' '), $info);
         $this->writeLine('# ' . $info, $depth * 4);
     }
     $this->writeLine($text, $depth * 4);
     // output defaults
     if ($defaultArray) {
         $this->writeLine('');
         $message = count($defaultArray) > 1 ? 'Defaults' : 'Default';
         $this->writeLine('# ' . $message . ':', $depth * 4 + 4);
         $this->writeArray($defaultArray, $depth + 1);
     }
     if (is_array($example)) {
         $this->writeLine('');
         $message = count($example) > 1 ? 'Examples' : 'Example';
         $this->writeLine('# ' . $message . ':', $depth * 4 + 4);
         $this->writeArray($example, $depth + 1);
     }
     if ($children) {
         foreach ($children as $childNode) {
             $this->writeNode($childNode, $depth + 1, $node instanceof PrototypedArrayNode && !$node->getKeyAttribute());
         }
     }
 }

 /**
  * Adds a child node.
  *
  * @param NodeInterface $node The child node to add
  * @throws \InvalidArgumentException when the child node has no name
  * @throws \InvalidArgumentException when the child node's name is not unique
  * @throws \RuntimeException if this array node is not a prototype
  */
 public function addChild(NodeInterface $node)
 {
     $name = $node->getName();
     if (empty($name)) {
         throw new \InvalidArgumentException('Node name cannot be empty.');
     }
     if (isset($this->children[$name])) {
         throw new \InvalidArgumentException(sprintf('The node "%s" already exists.', $name));
     }
     if (null !== $this->prototype) {
         throw new \RuntimeException('An ARRAY node must either have a prototype, or concrete children.');
     }
     $this->children[$name] = $node;
 }

 /**
  * @param NodeInterface $node
  * @param int           $depth
  * @param bool          $root      If the node is the root node
  * @param string        $namespace The namespace of the node
  */
 private function writeNode(NodeInterface $node, $depth = 0, $root = false, $namespace = null)
 {
     $rootName = $root ? 'config' : $node->getName();
     $rootNamespace = $namespace ?: ($root ? 'http://example.org/schema/dic/' . $node->getName() : null);
     // xml remapping
     if ($node->getParent()) {
         $remapping = array_filter($node->getParent()->getXmlRemappings(), function ($mapping) use($rootName) {
             return $rootName === $mapping[1];
         });
         if (count($remapping)) {
             list($singular) = current($remapping);
             $rootName = $singular;
         }
     }
     $rootName = str_replace('_', '-', $rootName);
     $rootAttributes = array();
     $rootAttributeComments = array();
     $rootChildren = array();
     $rootComments = array();
     if ($node instanceof ArrayNode) {
         $children = $node->getChildren();
         // comments about the root node
         if ($rootInfo = $node->getInfo()) {
             $rootComments[] = $rootInfo;
         }
         if ($rootNamespace) {
             $rootComments[] = 'Namespace: ' . $rootNamespace;
         }
         // render prototyped nodes
         if ($node instanceof PrototypedArrayNode) {
             array_unshift($rootComments, 'prototype');
             if ($key = $node->getKeyAttribute()) {
                 $rootAttributes[$key] = str_replace('-', ' ', $rootName) . ' ' . $key;
             }
             $prototype = $node->getPrototype();
             if ($prototype instanceof ArrayNode) {
                 $children = $prototype->getChildren();
             } else {
                 if ($prototype->hasDefaultValue()) {
                     $prototypeValue = $prototype->getDefaultValue();
                 } else {
                     switch (get_class($prototype)) {
                         case 'Symfony\\Component\\Config\\Definition\\ScalarNode':
                             $prototypeValue = 'scalar value';
                             break;
                         case 'Symfony\\Component\\Config\\Definition\\FloatNode':
                         case 'Symfony\\Component\\Config\\Definition\\IntegerNode':
                             $prototypeValue = 'numeric value';
                             break;
                         case 'Symfony\\Component\\Config\\Definition\\BooleanNode':
                             $prototypeValue = 'true|false';
                             break;
                         case 'Symfony\\Component\\Config\\Definition\\EnumNode':
                             $prototypeValue = implode('|', array_map('json_encode', $prototype->getValues()));
                             break;
                         default:
                             $prototypeValue = 'value';
                     }
                 }
             }
         }
         // get attributes and elements
         foreach ($children as $child) {
             if (!$child instanceof ArrayNode) {
                 // get attributes
                 // metadata
                 $name = str_replace('_', '-', $child->getName());
                 $value = '%%%%not_defined%%%%';
                 // use a string which isn't used in the normal world
                 // comments
                 $comments = array();
                 if ($info = $child->getInfo()) {
                     $comments[] = $info;
                 }
                 if ($example = $child->getExample()) {
                     $comments[] = 'Example: ' . $example;
                 }
                 if ($child->isRequired()) {
                     $comments[] = 'Required';
                 }
                 if ($child instanceof EnumNode) {
                     $comments[] = 'One of ' . implode('; ', array_map('json_encode', $child->getValues()));
                 }
                 if (count($comments)) {
                     $rootAttributeComments[$name] = implode(";\n", $comments);
                 }
                 // default values
                 if ($child->hasDefaultValue()) {
                     $value = $child->getDefaultValue();
                 }
                 // append attribute
                 $rootAttributes[$name] = $value;
             } else {
                 // get elements
//.........这里部分代码省略.........

 /**
  * @param NodeInterface $node
  * @param int           $depth
  */
 private function writeNode(NodeInterface $node, $depth = 0)
 {
     $comments = array();
     $default = '';
     $defaultArray = null;
     $children = null;
     $example = $node->getExample();
     // defaults
     if ($node instanceof ArrayNode) {
         $children = $node->getChildren();
         if ($node instanceof PrototypedArrayNode) {
             $prototype = $node->getPrototype();
             if ($prototype instanceof ArrayNode) {
                 $children = $prototype->getChildren();
             }
             // check for attribute as key
             if ($key = $node->getKeyAttribute()) {
                 $keyNodeClass = 'Symfony\\Component\\Config\\Definition\\' . ($prototype instanceof ArrayNode ? 'ArrayNode' : 'ScalarNode');
                 $keyNode = new $keyNodeClass($key, $node);
                 $keyNode->setInfo('Prototype');
                 // add children
                 foreach ($children as $childNode) {
                     $keyNode->addChild($childNode);
                 }
                 $children = array($key => $keyNode);
             }
         }
         if (!$children) {
             if ($node->hasDefaultValue() && count($defaultArray = $node->getDefaultValue())) {
                 $default = '';
             } elseif (!is_array($example)) {
                 $default = '[]';
             }
         }
     } elseif ($node instanceof EnumNode) {
         $comments[] = 'One of ' . implode('; ', array_map('json_encode', $node->getValues()));
         $default = $node->hasDefaultValue() ? Inline::dump($node->getDefaultValue()) : '~';
     } else {
         $default = '~';
         if ($node->hasDefaultValue()) {
             $default = $node->getDefaultValue();
             if (is_array($default)) {
                 if (count($defaultArray = $node->getDefaultValue())) {
                     $default = '';
                 } elseif (!is_array($example)) {
                     $default = '[]';
                 }
             } else {
                 $default = Inline::dump($default);
             }
         }
     }
     // required?
     if ($node->isRequired()) {
         $comments[] = 'Required';
     }
     // example
     if ($example && !is_array($example)) {
         $comments[] = 'Example: ' . $example;
     }
     $default = (string) $default != '' ? ' ' . $default : '';
     $comments = count($comments) ? '# ' . implode(', ', $comments) : '';
     $text = rtrim(sprintf('%-20s %s %s', $node->getName() . ':', $default, $comments), ' ');
     if ($info = $node->getInfo()) {
         $this->writeLine('');
         // indenting multi-line info
         $info = str_replace("\n", sprintf("\n%" . $depth * 4 . 's# ', ' '), $info);
         $this->writeLine('# ' . $info, $depth * 4);
     }
     $this->writeLine($text, $depth * 4);
     // output defaults
     if ($defaultArray) {
         $this->writeLine('');
         $message = count($defaultArray) > 1 ? 'Defaults' : 'Weather';
         $this->writeLine('# ' . $message . ':', $depth * 4 + 4);
         $this->writeArray($defaultArray, $depth + 1);
     }
     if (is_array($example)) {
         $this->writeLine('');
         $message = count($example) > 1 ? 'Examples' : 'Example';
         $this->writeLine('# ' . $message . ':', $depth * 4 + 4);
         $this->writeArray($example, $depth + 1);
     }
     if ($children) {
         foreach ($children as $childNode) {
             $this->writeNode($childNode, $depth + 1);
         }
     }
 }

 /**
  * @param NodeInterface $node
  * @param int           $depth
  */
 private function outputNode(NodeInterface $node, $depth = 0)
 {
     $comments = array();
     $default = '';
     $defaultArray = null;
     $children = null;
     $example = $node->getExample();
     // defaults
     if ($node instanceof ArrayNode) {
         $children = $node->getChildren();
         if ($node instanceof PrototypedArrayNode) {
             $prototype = $node->getPrototype();
             if ($prototype instanceof ArrayNode) {
                 $children = $prototype->getChildren();
             }
             // check for attribute as key
             if ($key = $node->getKeyAttribute()) {
                 $keyNode = new ArrayNode($key, $node);
                 $keyNode->setInfo('Prototype');
                 // add children
                 foreach ($children as $childNode) {
                     $keyNode->addChild($childNode);
                 }
                 $children = array($key => $keyNode);
             }
         }
         if (!$children) {
             if ($node->hasDefaultValue() && count($defaultArray = $node->getDefaultValue())) {
                 $default = '';
             } elseif (!is_array($example)) {
                 $default = '[]';
             }
         }
     } else {
         $default = '~';
         if ($node->hasDefaultValue()) {
             $default = $node->getDefaultValue();
             if (true === $default) {
                 $default = 'true';
             } elseif (false === $default) {
                 $default = 'false';
             } elseif (null === $default) {
                 $default = '~';
             }
         }
     }
     // required?
     if ($node->isRequired()) {
         $comments[] = 'Required';
     }
     // example
     if ($example && !is_array($example)) {
         $comments[] = 'Example: ' . $example;
     }
     $default = (string) $default != '' ? ' ' . $default : '';
     $comments = count($comments) ? '# ' . implode(', ', $comments) : '';
     $text = sprintf('%-20s %s %s', $node->getName() . ':', $default, $comments);
     if ($info = $node->getInfo()) {
         $this->outputLine('');
         $this->outputLine('# ' . $info, $depth * 4);
     }
     $this->outputLine($text, $depth * 4);
     // output defaults
     if ($defaultArray) {
         $this->outputLine('');
         $message = count($defaultArray) > 1 ? 'Defaults' : 'Default';
         $this->outputLine('# ' . $message . ':', $depth * 4 + 4);
         $this->outputArray($defaultArray, $depth + 1);
     }
     if (is_array($example)) {
         $this->outputLine('');
         $message = count($example) > 1 ? 'Examples' : 'Example';
         $this->outputLine('# ' . $message . ':', $depth * 4 + 4);
         $this->outputArray($example, $depth + 1);
     }
     if ($children) {
         foreach ($children as $childNode) {
             $this->outputNode($childNode, $depth + 1);
         }
     }
 }

 public static function assertNormalized(NodeInterface $tree, $denormalized, $normalized)
 {
     self::assertSame($normalized, $tree->normalize($denormalized));
 }

 public function __construct(NodeInterface $parentNode, $childNodeName)
 {
     parent::__construct(sprintf('Undefined child node "%s" (the part of the path that was successful: "%s")', $childNodeName, $parentNode->getPath()));
 }

 /**
  * Present a node question to the user
  *
  * @param  NodeInterface $node The node in question
  * @param  string $name The name of the node
  * @return mixed The new value of the node
  */
 private function writeNodeQuestion($node, $name)
 {
     if (!$this->questionInfoShown) {
         $this->io->write(array("<comment> ! [NOTE] You can change all the configuration options later", " ! on the config.yml file in the app folder</>\n"));
         $this->questionInfoShown = true;
     }
     if (!$node->getAttribute('asked')) {
         return $node->getDefaultValue();
     }
     $this->writeWarning($node);
     if ($info = $node->getInfo()) {
         $this->io->write(" {$info}");
     }
     if ($example = $node->getExample()) {
         // We use Inline::dump() to convert the value to the YAML
         // format so that it is readable by the user (as an example,
         // false values are converted to 'false' instead of an empty
         // string)
         $example = Inline::dump($example);
         $this->io->write(" Example: <comment>{$example}</comment>");
     }
     $question = " <fg=green>{$name}";
     if ($node instanceof EnumNode) {
         // Create list of possible values for enum configuration parameters
         $values = $node->getValues();
         foreach ($values as &$value) {
             $value = Inline::dump($value);
         }
         $question .= ' (' . implode(', ', $values) . ')';
     }
     $question .= "</fg=green>";
     if ($node->hasDefaultValue()) {
         // Show the default value of the parameter
         $default = Inline::dump($node->getDefaultValue());
         $question .= " [<comment>{$default}</comment>]";
     } else {
         $default = null;
     }
     // Show a user-friendly prompt
     $question .= ":\n > ";
     $value = $this->io->askAndValidate($question, function ($value) use($node) {
         $value = Inline::parse($value);
         // Make sure that there are no errors
         $node->finalize($value);
         return $value;
     }, null, $default);
     $this->io->write("");
     return $value;
 }

 /**
  * @param array $configs
  *
  * @return array
  */
 private function validateMenuItemConfig(array $configs)
 {
     // Keep it static to prevent to many objects
     if (!self::$configTree) {
         $configTree = new TreeBuilder();
         $node = $configTree->root('item');
         $configuration = new Configuration($this->getAlias());
         $configuration->addItemConfig($node);
         self::$configTree = $configTree;
     }
     $processor = new Processor();
     return $processor->process(self::$configTree->buildTree(), array($configs));
 }