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<?php
namespace PhpParser\Node\Stmt;
use PhpParser\Node;
use PhpParser\Error;
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 VISIBILITY_MODIFER_MASK = 7; // 1 | 2 | 4
/** @var int Type */
public $type;
/** @var null|Node\Name Name of extended class */
public $extends;
/** @var Node\Name[] Names of implemented interfaces */
public $implements;
protected static $specialNames = array(
'self' => true,
'parent' => true,
'static' => true,
);
/**
* Constructs a class node.
*
* @param string|null $name Name
* @param array $subNodes Array of the following optional subnodes:
* 'type' => 0 : Type
* 'extends' => null : Name of extended class
* 'implements' => array(): Names of implemented interfaces
* 'stmts' => array(): Statements
* @param array $attributes Additional attributes
*/
public function __construct($name, array $subNodes = array(), array $attributes = array()) {
parent::__construct($attributes);
$this->type = isset($subNodes['type']) ? $subNodes['type'] : 0;
$this->name = $name;
$this->extends = isset($subNodes['extends']) ? $subNodes['extends'] : null;
$this->implements = isset($subNodes['implements']) ? $subNodes['implements'] : array();
$this->stmts = isset($subNodes['stmts']) ? $subNodes['stmts'] : array();
if (null !== $this->name && isset(self::$specialNames[strtolower($this->name)])) {
throw new Error(sprintf('Cannot use \'%s\' as class name as it is reserved', $this->name));
}
if (isset(self::$specialNames[strtolower($this->extends)])) {
throw new Error(
sprintf('Cannot use \'%s\' as class name as it is reserved', $this->extends),
$this->extends->getAttributes()
);
}
foreach ($this->implements as $interface) {
if (isset(self::$specialNames[strtolower($interface)])) {
throw new Error(
sprintf('Cannot use \'%s\' as interface name as it is reserved', $interface),
$interface->getAttributes()
);
}
}
}
public function getSubNodeNames() {
return array('type', 'name', 'extends', 'implements', 'stmts');
}
public function isAbstract() {
return (bool) ($this->type & self::MODIFIER_ABSTRACT);
}
public function isFinal() {
return (bool) ($this->type & self::MODIFIER_FINAL);
}
public function isAnonymous() {
return null === $this->name;
}
/**
* @internal
*/
public static function verifyModifier($a, $b) {
if ($a & self::VISIBILITY_MODIFER_MASK && $b & self::VISIBILITY_MODIFER_MASK) {
throw new Error('Multiple access type modifiers are not allowed');
}
if ($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 & 48 && $b & 48) {
throw new Error('Cannot use the final modifier on an abstract class member');
}
}
}
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