Add ValidatorInterface::getPattern() and set constants to private

src/Rfc4122/Validator.php

@@ -23,14 +23,22 @@ use function str_replace;
 /**
  * Rfc4122\Validator validates strings as UUIDs of the RFC 4122 variant
  */
-class Validator implements ValidatorInterface
+final class Validator implements ValidatorInterface
 {
-    /**
-     * Regular expression pattern for matching an RFC 4122 UUID
-     */
-    public const VALID_PATTERN = '^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-'
+    private const VALID_PATTERN = '^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-'
         . '[1-5]{1}[0-9A-Fa-f]{3}-[ABab89]{1}[0-9A-Fa-f]{3}-[0-9A-Fa-f]{12}$';
 
+    /**
+     * @psalm-pure
+     * @psalm-return non-empty-string
+     * @psalm-suppress MoreSpecificReturnType we know that the retrieved `string` is never empty
+     * @psalm-suppress LessSpecificReturnStatement we know that the retrieved `string` is never empty
+     */
+    public function getPattern(): string
+    {
+        return self::VALID_PATTERN;
+    }
+
     /**
      * @psalm-pure
      */

src/Uuid.php

@@ -112,7 +112,7 @@ class Uuid implements UuidInterface
     public const RESERVED_FUTURE = 7;
 
     /**
-     * @deprecated Use {@see GenericValidator::VALID_PATTERN} instead.
+     * @deprecated Use {@see ValidatorInterface::getPattern()} instead.
      */
     public const VALID_PATTERN = '^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}$';
 

src/Validator/GenericValidator.php

@@ -22,12 +22,23 @@ use function str_replace;
 /**
  * GenericValidator validates strings as UUIDs of any variant
  */
-class GenericValidator implements ValidatorInterface
+final class GenericValidator implements ValidatorInterface
 {
     /**
      * Regular expression pattern for matching a UUID of any variant.
      */
-    public const VALID_PATTERN = '^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}$';
+    private const VALID_PATTERN = '^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}$';
+
+    /**
+     * @psalm-pure
+     * @psalm-return non-empty-string
+     * @psalm-suppress MoreSpecificReturnType we know that the retrieved `string` is never empty
+     * @psalm-suppress LessSpecificReturnStatement we know that the retrieved `string` is never empty
+     */
+    public function getPattern(): string
+    {
+        return self::VALID_PATTERN;
+    }
 
     /**
      * @psalm-pure

src/Validator/ValidatorInterface.php

@@ -19,6 +19,16 @@ namespace Ramsey\Uuid\Validator;
  */
 interface ValidatorInterface
 {
+    /**
+     * Returns the regular expression pattern used by this validator
+     *
+     * @return string The regular expression pattern this validator uses
+     *
+     * @psalm-pure
+     * @psalm-return non-empty-string
+     */
+    public function getPattern(): string;
+
     /**
      * Returns true if the provided string represents a UUID
      *