Add methods to check backing type

src/Concerns/SelfAware.php

@@ -31,6 +31,22 @@ public static function isBacked(): bool
         return is_subclass_of(self::class, BackedEnum::class);
     }
 
+    /**
+     * Determine whether the enum is backed by integer.
+     */
+    public static function isBackedByInteger(): bool
+    {
+        return (new ReflectionEnum(self::class))->getBackingType()?->getName() === 'int';
+    }
+
+    /**
+     * Determine whether the enum is backed by string.
+     */
+    public static function isBackedByString(): bool
+    {
+        return (new ReflectionEnum(self::class))->getBackingType()?->getName() === 'string';
+    }
+
     /**
      * Retrieve all the meta names of the enum.
      *

tests/BackedEnumTest.php

@@ -3,6 +3,7 @@
 use Cerbero\Enum\CasesCollection;
 use Cerbero\Enum\BackedEnum;
 use Cerbero\Enum\Enums;
+use Cerbero\Enum\PureEnum;
 use Pest\Expectation;
 
 it('determines whether the enum is pure')
@@ -13,6 +14,13 @@
     ->expect(BackedEnum::isBacked())
     ->toBeTrue();
 
+it('determines whether the enum is backed by integer or string', function() {
+    expect(BackedEnum::isBackedByInteger())->toBeTrue();
+    expect(BackedEnum::isBackedByString())->toBeFalse();
+    expect(PureEnum::isBackedByInteger())->toBeFalse();
+    expect(PureEnum::isBackedByString())->toBeFalse();
+});
+
 it('retrieves all the names of the cases')
     ->expect(BackedEnum::names())
     ->toBe(['one', 'two', 'three']);