Developer
<?php declare(strict_types=1);
namespace PhpParser;
/**
* Modifiers used (as a bit mask) by various flags subnodes, for example on classes, functions,
* properties and constants.
*/
final class Modifiers {
public const PUBLIC = 1;
public const PROTECTED = 2;
public const PRIVATE = 4;
public const STATIC = 8;
public const ABSTRACT = 16;
public const FINAL = 32;
public const READONLY = 64;
public const VISIBILITY_MASK = 1 | 2 | 4;
/**
* @internal
*/
public static function verifyClassModifier(int $a, int $b): void {
if ($a & Modifiers::ABSTRACT && $b & Modifiers::ABSTRACT) {
throw new Error('Multiple abstract modifiers are not allowed');
}
if ($a & Modifiers::FINAL && $b & Modifiers::FINAL) {
throw new Error('Multiple final modifiers are not allowed');
}
if ($a & Modifiers::READONLY && $b & Modifiers::READONLY) {
throw new Error('Multiple readonly modifiers are not allowed');
}
if ($a & 48 && $b & 48) {
throw new Error('Cannot use the final modifier on an abstract class');
}
}
/**
* @internal
*/
public static function verifyModifier(int $a, int $b): void {
if ($a & Modifiers::VISIBILITY_MASK && $b & Modifiers::VISIBILITY_MASK) {
throw new Error('Multiple access type modifiers are not allowed');
}
if ($a & Modifiers::ABSTRACT && $b & Modifiers::ABSTRACT) {
throw new Error('Multiple abstract modifiers are not allowed');
}
if ($a & Modifiers::STATIC && $b & Modifiers::STATIC) {
throw new Error('Multiple static modifiers are not allowed');
}
if ($a & Modifiers::FINAL && $b & Modifiers::FINAL) {
throw new Error('Multiple final modifiers are not allowed');
}
if ($a & Modifiers::READONLY && $b & Modifiers::READONLY) {
throw new Error('Multiple readonly modifiers are not allowed');
}
if ($a & 48 && $b & 48) {
throw new Error('Cannot use the final modifier on an abstract class member');
}
}
}
Developer
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