PHP-Parser/lib/PhpParser/Node/Expr/Closure.php

<?php

namespace PhpParser\Node\Expr;

use PhpParser\Node;
use PhpParser\Node\Expr;

class Closure extends Expr
{
    /** @var bool Whether the closure is static */
    public $static;
    /** @var bool Whether to return by reference */
    public $byRef;
    /** @var Node\Param[] Parameters */
    public $params;
    /** @var ClosureUse[] use()s */
    public $uses;
    /** @var Node[] Statements */
    public $stmts;

    /**
     * Constructs a lambda function node.
     *
     * @param array $subNodes   Array of the following optional subnodes:
     *                          'static' => false  : Whether the closure is static
     *                          'byRef'  => false  : Whether to return by reference
     *                          'params' => array(): Parameters
     *                          'uses'   => array(): use()s
     *                          'stmts'  => array(): Statements
     * @param array $attributes Additional attributes
     */
    public function __construct(array $subNodes = array(), array $attributes = array()) {
        parent::__construct(null, $attributes);
        $this->static = isset($subNodes['static']) ? $subNodes['static'] : false;
        $this->byRef = isset($subNodes['byRef'])  ? $subNodes['byRef']  : false;
        $this->params = isset($subNodes['params']) ? $subNodes['params'] : array();
        $this->uses = isset($subNodes['uses'])   ? $subNodes['uses']   : array();
        $this->stmts = isset($subNodes['stmts'])  ? $subNodes['stmts']  : array();
    }

    public function getSubNodeNames() {
        return array('static', 'byRef', 'params', 'uses', 'stmts');
    }
}