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<?php declare(strict_types=1);
namespace PhpParser\Node\Stmt;
use PhpParser\Error;
use PhpParser\Node;
class Class_ extends ClassLike
{
const MODIFIER_PUBLIC = 1;
const MODIFIER_PROTECTED = 2;
const MODIFIER_PRIVATE = 4;
const MODIFIER_STATIC = 8;
const MODIFIER_ABSTRACT = 16;
const MODIFIER_FINAL = 32;
const MODIFIER_READONLY = 64;
const VISIBILITY_MODIFIER_MASK = 7; // 1 | 2 | 4
/** @var int Type */
public $flags;
/** @var null|Node\Name Name of extended class */
public $extends;
/** @var Node\Name[] Names of implemented interfaces */
public $implements;
/**
* Constructs a class node.
*
* @param string|Node\Identifier|null $name Name
* @param array $subNodes Array of the following optional subnodes:
* 'flags' => 0 : Flags
* 'extends' => null : Name of extended class
* 'implements' => array(): Names of implemented interfaces
* 'stmts' => array(): Statements
* 'attrGroups' => array(): PHP attribute groups
* @param array $attributes Additional attributes
*/
public function __construct($name, array $subNodes = [], array $attributes = []) {
$this->attributes = $attributes;
$this->flags = $subNodes['flags'] ?? $subNodes['type'] ?? 0;
$this->name = \is_string($name) ? new Node\Identifier($name) : $name;
$this->extends = $subNodes['extends'] ?? null;
$this->implements = $subNodes['implements'] ?? [];
$this->stmts = $subNodes['stmts'] ?? [];
$this->attrGroups = $subNodes['attrGroups'] ?? [];
}
public function getSubNodeNames() : array {
return ['attrGroups', 'flags', 'name', 'extends', 'implements', 'stmts'];
}
/**
* Whether the class is explicitly abstract.
*
* @return bool
*/
public function isAbstract() : bool {
return (bool) ($this->flags & self::MODIFIER_ABSTRACT);
}
/**
* Whether the class is final.
*
* @return bool
*/
public function isFinal() : bool {
return (bool) ($this->flags & self::MODIFIER_FINAL);
}
public function isReadonly() : bool {
return (bool) ($this->flags & self::MODIFIER_READONLY);
}
/**
* Whether the class is anonymous.
*
* @return bool
*/
public function isAnonymous() : bool {
return null === $this->name;
}
/**
* @internal
*/
public static function verifyClassModifier($a, $b) {
if ($a & self::MODIFIER_ABSTRACT && $b & self::MODIFIER_ABSTRACT) {
throw new Error('Multiple abstract modifiers are not allowed');
}
if ($a & self::MODIFIER_FINAL && $b & self::MODIFIER_FINAL) {
throw new Error('Multiple final modifiers are not allowed');
}
if ($a & self::MODIFIER_READONLY && $b & self::MODIFIER_READONLY) {
throw new Error('Multiple readonly modifiers are not allowed');
}
if ($a & 48 && $b & 48) {
throw new Error('Cannot use the final modifier on an abstract class');
}
}
/**
* @internal
*/
public static function verifyModifier($a, $b) {
if ($a & self::VISIBILITY_MODIFIER_MASK && $b & self::VISIBILITY_MODIFIER_MASK) {
throw new Error('Multiple access type modifiers are not allowed');
}
if ($a & self::MODIFIER_ABSTRACT && $b & self::MODIFIER_ABSTRACT) {
throw new Error('Multiple abstract modifiers are not allowed');
}
if ($a & self::MODIFIER_STATIC && $b & self::MODIFIER_STATIC) {
throw new Error('Multiple static modifiers are not allowed');
}
if ($a & self::MODIFIER_FINAL && $b & self::MODIFIER_FINAL) {
throw new Error('Multiple final modifiers are not allowed');
}
if ($a & self::MODIFIER_READONLY && $b & self::MODIFIER_READONLY) {
throw new Error('Multiple readonly modifiers are not allowed');
}
if ($a & 48 && $b & 48) {
throw new Error('Cannot use the final modifier on an abstract class member');
}
}
public function getType() : string {
return 'Stmt_Class';
}
}
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