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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\ExpressionLanguage\Node; use Symfony\Component\ExpressionLanguage\Compiler; /** * @author Fabien Potencier <fabien@symfony.com> * * @internal */ class GetAttrNode extends Node { const PROPERTY_CALL = 1; const METHOD_CALL = 2; const ARRAY_CALL = 3; public function __construct(Node $node, Node $attribute, ArrayNode $arguments, int $type) { parent::__construct( ['node' => $node, 'attribute' => $attribute, 'arguments' => $arguments], ['type' => $type] ); } public function compile(Compiler $compiler) { switch ($this->attributes['type']) { case self::PROPERTY_CALL: $compiler ->compile($this->nodes['node']) ->raw('->') ->raw($this->nodes['attribute']->attributes['value']) ; break; case self::METHOD_CALL: $compiler ->compile($this->nodes['node']) ->raw('->') ->raw($this->nodes['attribute']->attributes['value']) ->raw('(') ->compile($this->nodes['arguments']) ->raw(')') ; break; case self::ARRAY_CALL: $compiler ->compile($this->nodes['node']) ->raw('[') ->compile($this->nodes['attribute'])->raw(']') ; break; } } public function evaluate($functions, $values) { switch ($this->attributes['type']) { case self::PROPERTY_CALL: $obj = $this->nodes['node']->evaluate($functions, $values); if (!\is_object($obj)) { throw new \RuntimeException('Unable to get a property on a non-object.'); } $property = $this->nodes['attribute']->attributes['value']; return $obj->$property; case self::METHOD_CALL: $obj = $this->nodes['node']->evaluate($functions, $values); if (!\is_object($obj)) { throw new \RuntimeException('Unable to get a property on a non-object.'); } if (!\is_callable($toCall = [$obj, $this->nodes['attribute']->attributes['value']])) { throw new \RuntimeException(sprintf('Unable to call method "%s" of object "%s".', $this->nodes['attribute']->attributes['value'], \get_class($obj))); } return $toCall(...array_values($this->nodes['arguments']->evaluate($functions, $values))); case self::ARRAY_CALL: $array = $this->nodes['node']->evaluate($functions, $values); if (!\is_array($array) && !$array instanceof \ArrayAccess) { throw new \RuntimeException('Unable to get an item on a non-array.'); } return $array[$this->nodes['attribute']->evaluate($functions, $values)]; } } public function toArray() { switch ($this->attributes['type']) { case self::PROPERTY_CALL: return [$this->nodes['node'], '.', $this->nodes['attribute']]; case self::METHOD_CALL: return [$this->nodes['node'], '.', $this->nodes['attribute'], '(', $this->nodes['arguments'], ')']; case self::ARRAY_CALL: return [$this->nodes['node'], '[', $this->nodes['attribute'], ']']; } } }