<?php /* * This file is part of Twig. * * (c) Fabien Potencier * (c) Armin Ronacher * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * Represents a node in the AST. * * @author Fabien Potencier <fabien@symfony.com> */ class Twig_Node implements Twig_NodeInterface { protected $nodes; protected $attributes; protected $lineno; protected $tag; private $name; /** * Constructor. * * The nodes are automatically made available as properties ($this->node). * The attributes are automatically made available as array items ($this['name']). * * @param array $nodes An array of named nodes * @param array $attributes An array of attributes (should not be nodes) * @param int $lineno The line number * @param string $tag The tag name associated with the Node */ public function __construct(array $nodes = [], array $attributes = [], $lineno = 0, $tag = null) { foreach ($nodes as $name => $node) { if (!$node instanceof Twig_NodeInterface) { @trigger_error(sprintf('Using "%s" for the value of node "%s" of "%s" is deprecated since version 1.25 and will be removed in 2.0.', is_object($node) ? get_class($node) : null === $node ? 'null' : gettype($node), $name, get_class($this)), E_USER_DEPRECATED); } } $this->nodes = $nodes; $this->attributes = $attributes; $this->lineno = $lineno; $this->tag = $tag; } public function __toString() { $attributes = []; foreach ($this->attributes as $name => $value) { $attributes[] = sprintf('%s: %s', $name, str_replace("\n", '', var_export($value, true))); } $repr = [get_class($this).'('.implode(', ', $attributes)]; if (count($this->nodes)) { foreach ($this->nodes as $name => $node) { $len = strlen($name) + 4; $noderepr = []; foreach (explode("\n", (string) $node) as $line) { $noderepr[] = str_repeat(' ', $len).$line; } $repr[] = sprintf(' %s: %s', $name, ltrim(implode("\n", $noderepr))); } $repr[] = ')'; } else { $repr[0] .= ')'; } return implode("\n", $repr); } /** * @deprecated since 1.16.1 (to be removed in 2.0) */ public function toXml($asDom = false) { @trigger_error(sprintf('%s is deprecated since version 1.16.1 and will be removed in 2.0.', __METHOD__), E_USER_DEPRECATED); $dom = new DOMDocument('1.0', 'UTF-8'); $dom->formatOutput = true; $dom->appendChild($xml = $dom->createElement('twig')); $xml->appendChild($node = $dom->createElement('node')); $node->setAttribute('class', get_class($this)); foreach ($this->attributes as $name => $value) { $node->appendChild($attribute = $dom->createElement('attribute')); $attribute->setAttribute('name', $name); $attribute->appendChild($dom->createTextNode($value)); } foreach ($this->nodes as $name => $n) { if (null === $n) { continue; } $child = $n->toXml(true)->getElementsByTagName('node')->item(0); $child = $dom->importNode($child, true); $child->setAttribute('name', $name); $node->appendChild($child); } return $asDom ? $dom : $dom->saveXML(); } public function compile(Twig_Compiler $compiler) { foreach ($this->nodes as $node) { $node->compile($compiler); } } public function getTemplateLine() { return $this->lineno; } /** * @deprecated since 1.27 (to be removed in 2.0) */ public function getLine() { @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0. Use getTemplateLine() instead.', E_USER_DEPRECATED); return $this->lineno; } public function getNodeTag() { return $this->tag; } /** * @return bool */ public function hasAttribute($name) { return array_key_exists($name, $this->attributes); } /** * @return mixed */ public function getAttribute($name) { if (!array_key_exists($name, $this->attributes)) { throw new LogicException(sprintf('Attribute "%s" does not exist for Node "%s".', $name, get_class($this))); } return $this->attributes[$name]; } /** * @param string $name * @param mixed $value */ public function setAttribute($name, $value) { $this->attributes[$name] = $value; } public function removeAttribute($name) { unset($this->attributes[$name]); } /** * @return bool */ public function hasNode($name) { return array_key_exists($name, $this->nodes); } /** * @return Twig_Node */ public function getNode($name) { if (!array_key_exists($name, $this->nodes)) { throw new LogicException(sprintf('Node "%s" does not exist for Node "%s".', $name, get_class($this))); } return $this->nodes[$name]; } public function setNode($name, $node = null) { if (!$node instanceof Twig_NodeInterface) { @trigger_error(sprintf('Using "%s" for the value of node "%s" of "%s" is deprecated since version 1.25 and will be removed in 2.0.', is_object($node) ? get_class($node) : null === $node ? 'null' : gettype($node), $name, get_class($this)), E_USER_DEPRECATED); } $this->nodes[$name] = $node; } public function removeNode($name) { unset($this->nodes[$name]); } public function count() { return count($this->nodes); } public function getIterator() { return new ArrayIterator($this->nodes); } public function setTemplateName($name) { $this->name = $name; foreach ($this->nodes as $node) { if (null !== $node) { $node->setTemplateName($name); } } } public function getTemplateName() { return $this->name; } /** * @deprecated since 1.27 (to be removed in 2.0) */ public function setFilename($name) { @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0. Use setTemplateName() instead.', E_USER_DEPRECATED); $this->setTemplateName($name); } /** * @deprecated since 1.27 (to be removed in 2.0) */ public function getFilename() { @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0. Use getTemplateName() instead.', E_USER_DEPRECATED); return $this->name; } } class_alias('Twig_Node', 'Twig\Node\Node', false); class_exists('Twig_Compiler');