Chris@13: <?php declare(strict_types=1);
Chris@0: 
Chris@0: namespace PhpParser\Node\Stmt;
Chris@0: 
Chris@0: use PhpParser\Error;
Chris@0: use PhpParser\Node;
Chris@0: 
Chris@0: class Class_ extends ClassLike
Chris@0: {
Chris@0:     const MODIFIER_PUBLIC    =  1;
Chris@0:     const MODIFIER_PROTECTED =  2;
Chris@0:     const MODIFIER_PRIVATE   =  4;
Chris@0:     const MODIFIER_STATIC    =  8;
Chris@0:     const MODIFIER_ABSTRACT  = 16;
Chris@0:     const MODIFIER_FINAL     = 32;
Chris@0: 
Chris@0:     const VISIBILITY_MODIFIER_MASK = 7; // 1 | 2 | 4
Chris@0: 
Chris@0:     /** @var int Type */
Chris@0:     public $flags;
Chris@0:     /** @var null|Node\Name Name of extended class */
Chris@0:     public $extends;
Chris@0:     /** @var Node\Name[] Names of implemented interfaces */
Chris@0:     public $implements;
Chris@0: 
Chris@0:     /**
Chris@0:      * Constructs a class node.
Chris@0:      *
Chris@13:      * @param string|Node\Identifier|null $name Name
Chris@0:      * @param array       $subNodes   Array of the following optional subnodes:
Chris@0:      *                                'flags'      => 0      : Flags
Chris@0:      *                                'extends'    => null   : Name of extended class
Chris@0:      *                                'implements' => array(): Names of implemented interfaces
Chris@0:      *                                'stmts'      => array(): Statements
Chris@0:      * @param array       $attributes Additional attributes
Chris@0:      */
Chris@13:     public function __construct($name, array $subNodes = [], array $attributes = []) {
Chris@0:         parent::__construct($attributes);
Chris@13:         $this->flags = $subNodes['flags'] ?? $subNodes['type'] ?? 0;
Chris@13:         $this->name = \is_string($name) ? new Node\Identifier($name) : $name;
Chris@13:         $this->extends = $subNodes['extends'] ?? null;
Chris@13:         $this->implements = $subNodes['implements'] ?? [];
Chris@13:         $this->stmts = $subNodes['stmts'] ?? [];
Chris@0:     }
Chris@0: 
Chris@13:     public function getSubNodeNames() : array {
Chris@13:         return ['flags', 'name', 'extends', 'implements', 'stmts'];
Chris@0:     }
Chris@0: 
Chris@13:     /**
Chris@13:      * Whether the class is explicitly abstract.
Chris@13:      *
Chris@13:      * @return bool
Chris@13:      */
Chris@13:     public function isAbstract() : bool {
Chris@0:         return (bool) ($this->flags & self::MODIFIER_ABSTRACT);
Chris@0:     }
Chris@0: 
Chris@13:     /**
Chris@13:      * Whether the class is final.
Chris@13:      *
Chris@13:      * @return bool
Chris@13:      */
Chris@13:     public function isFinal() : bool {
Chris@0:         return (bool) ($this->flags & self::MODIFIER_FINAL);
Chris@0:     }
Chris@0: 
Chris@13:     /**
Chris@13:      * Whether the class is anonymous.
Chris@13:      *
Chris@13:      * @return bool
Chris@13:      */
Chris@13:     public function isAnonymous() : bool {
Chris@0:         return null === $this->name;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * @internal
Chris@0:      */
Chris@0:     public static function verifyModifier($a, $b) {
Chris@0:         if ($a & self::VISIBILITY_MODIFIER_MASK && $b & self::VISIBILITY_MODIFIER_MASK) {
Chris@0:             throw new Error('Multiple access type modifiers are not allowed');
Chris@0:         }
Chris@0: 
Chris@0:         if ($a & self::MODIFIER_ABSTRACT && $b & self::MODIFIER_ABSTRACT) {
Chris@0:             throw new Error('Multiple abstract modifiers are not allowed');
Chris@0:         }
Chris@0: 
Chris@0:         if ($a & self::MODIFIER_STATIC && $b & self::MODIFIER_STATIC) {
Chris@0:             throw new Error('Multiple static modifiers are not allowed');
Chris@0:         }
Chris@0: 
Chris@0:         if ($a & self::MODIFIER_FINAL && $b & self::MODIFIER_FINAL) {
Chris@0:             throw new Error('Multiple final modifiers are not allowed');
Chris@0:         }
Chris@0: 
Chris@0:         if ($a & 48 && $b & 48) {
Chris@0:             throw new Error('Cannot use the final modifier on an abstract class member');
Chris@0:         }
Chris@0:     }
Chris@13:     
Chris@13:     public function getType() : string {
Chris@13:         return 'Stmt_Class';
Chris@13:     }
Chris@0: }