php-parser/lib/PHPParser/Node/Stmt/Interface.php

<?php

/**
 * @property string                $name    Name
 * @property PHPParser_Node_Name[] $extends Extended interfaces
 * @property PHPParser_Node[]      $stmts   Statements
 */
class PHPParser_Node_Stmt_Interface extends PHPParser_Node_Stmt
{
    protected static $specialInterfaceNames = array(
        'self'   => true,
        'parent' => true,
        'static' => true,
    );

    /**
     * Constructs a class node.
     *
     * @param string      $name       Name
     * @param array       $subNodes   Array of the following optional subnodes:
     *                                'extends' => array(): Name of extended interfaces
     *                                'stmts'   => array(): Statements
     * @param int         $line       Line
     * @param null|string $docComment Nearest doc comment
     */
    public function __construct($name, array $subNodes = array(), $line = -1, $docComment = null) {
        parent::__construct(
            $subNodes + array(
                'extends' => array(),
                'stmts'   => array(),
            ),
            $line, $docComment
        );
        $this->name = $name;

        if (isset(self::$specialInterfaceNames[(string) $this->name])) {
            throw new PHPParser_Error(sprintf('Cannot use "%s" as interface name as it is reserved', $this->name));
        }

        foreach ($this->extends as $interface) {
            if (isset(self::$specialInterfaceNames[(string) $interface])) {
                throw new PHPParser_Error(sprintf('Cannot use "%s" as interface name as it is reserved', $interface));
            }
        }
    }
}