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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; /** * Represents a node in the AST. * * @author Fabien Potencier <fabien@symfony.com> */ class Node { public $nodes = []; public $attributes = []; /** * @param array $nodes An array of nodes * @param array $attributes An array of attributes */ public function __construct(array $nodes = [], array $attributes = []) { $this->nodes = $nodes; $this->attributes = $attributes; } public function __toString() { $attributes = []; foreach ($this->attributes as $name => $value) { $attributes[] = sprintf('%s: %s', $name, str_replace("\n", '', var_export($value, true))); } $repr = [str_replace('Symfony\Component\ExpressionLanguage\Node\\', '', \get_class($this)).'('.implode(', ', $attributes)]; if (\count($this->nodes)) { foreach ($this->nodes as $node) { foreach (explode("\n", (string) $node) as $line) { $repr[] = ' '.$line; } } $repr[] = ')'; } else { $repr[0] .= ')'; } return implode("\n", $repr); } public function compile(Compiler $compiler) { foreach ($this->nodes as $node) { $node->compile($compiler); } } public function evaluate($functions, $values) { $results = []; foreach ($this->nodes as $node) { $results[] = $node->evaluate($functions, $values); } return $results; } public function toArray() { throw new \BadMethodCallException(sprintf('Dumping a "%s" instance is not supported yet.', \get_class($this))); } public function dump() { $dump = ''; foreach ($this->toArray() as $v) { $dump .= is_scalar($v) ? $v : $v->dump(); } return $dump; } protected function dumpString($value) { return sprintf('"%s"', addcslashes($value, "\0\t\"\\")); } protected function isHash(array $value) { $expectedKey = 0; foreach ($value as $key => $val) { if ($key !== $expectedKey++) { return true; } } return false; } }
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