<!--
{
  "availability" : [
    "iOS: 27.0.0 -",
    "iPadOS: 27.0.0 -",
    "macCatalyst: -",
    "macOS: 27.0.0 -",
    "tvOS: 27.0.0 -",
    "visionOS: 27.0.0 -",
    "watchOS: 27.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AppIntents",
  "identifier" : "/documentation/AppIntents/AppUnionValueCasesProviding",
  "metadataVersion" : "0.1.0",
  "role" : "Protocol",
  "symbol" : {
    "kind" : "Protocol",
    "modules" : [
      "App Intents"
    ],
    "preciseIdentifier" : "s:10AppIntents0A24UnionValueCasesProvidingP"
  },
  "title" : "AppUnionValueCasesProviding"
}
-->

# AppUnionValueCasesProviding

A protocol for the cases enumeration of an `AppUnionValue`.

```
protocol AppUnionValueCasesProviding : AppEnum
```

## Overview

This protocol is automatically conformed to by the `Cases` enum generated
by the `@UnionValue` macro. It bridges the cases enum back to the union value
type and inherits metadata through the `AppEnum` conformance.

## Relationships

### Inherits From

[`AppValue`](/documentation/AppIntents/AppValue)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`StaticDisplayRepresentable`](/documentation/AppIntents/StaticDisplayRepresentable)

[`TypeDisplayRepresentable`](/documentation/AppIntents/TypeDisplayRepresentable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`CaseIterable`](/documentation/Swift/CaseIterable)

[`Sendable`](/documentation/Swift/Sendable)

[`Equatable`](/documentation/Swift/Equatable)

[`CaseDisplayRepresentable`](/documentation/AppIntents/CaseDisplayRepresentable)

[`Hashable`](/documentation/Swift/Hashable)

[`PersistentlyIdentifiable`](/documentation/AppIntents/PersistentlyIdentifiable)

[`AppEnum`](/documentation/AppIntents/AppEnum)

[`CustomLocalizedStringResourceConvertible`](/documentation/Foundation/CustomLocalizedStringResourceConvertible)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)