ENUM

StorageError

Contents

• Cases
  • writeError(cause:)
  • readError(cause:)
  • deleteError(cause:)
  • unavailable(operation:category:code:)

public enum StorageError: Error

Storage error responses

Cases

writeError(cause:)

case writeError(cause: Error)

An error occurred while attempting to write to the storage.

The cause provides more detailed information about the error.

readError(cause:)

case readError(cause: Error)

An error occurred while attempting to read from the storage.

The cause provides more detailed information about the error.

deleteError(cause:)

case deleteError(cause: Error)

An error occurred while attempting to delete from the storage.

The cause provides more detailed information about the error.

unavailable(operation:category:code:)

case unavailable(operation: StorageOperation, category: StorageItemCategory, code: Int32?)

The storage backend was unavailable (for the built-in keychain: the device is locked, or the configured access group is unusable — e.g. a missing Keychain Sharing entitlement). Surfaced as the cause of the existing .readError/.writeError/.deleteError cases — it is not thrown in place of a case clients already catch. Carries only non-sensitive, backend-agnostic diagnostic context — operation, a generic item category, and an optional backend status code (e.g. a keychain OSStatus, if any) — never a key or value.