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- <?php declare(strict_types=1);
- namespace PhpParser;
- 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;
-
- 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');
- }
- }
-
- 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');
- }
- }
- }
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