Replace unknown Bindings errors with fatalError

Example/example-app/Sources/AppFeature/PasswordStorage+Keychain.swift

@@ -8,7 +8,7 @@ extension PasswordStorage {
     )
     return PasswordStorage(
       save: { password in keychain[data: "password"] = password},
-      load: { try keychain[data: "password"] ?? { throw PasswordStorageMissingPasswordError() }() }
+      load: { try keychain[data: "password"] ?? { throw MissingPasswordError() }() }
     )
   }()
 }

Sources/ElixxirDAppsSDK/ClientCreator.swift

@@ -17,7 +17,7 @@ extension ClientCreator {
       throw error
     }
     if !created {
-      throw BindingsNewClientUnknownError()
+      fatalError("BindingsNewClient returned `false` without providing error")
     }
   }
 }

Sources/ElixxirDAppsSDK/ClientLoader.swift

@@ -12,9 +12,11 @@ extension ClientLoader {
   public static let live = ClientLoader { directoryURL, password in
     var error: NSError?
     let bindingsClient = BindingsLogin(directoryURL.path, password, &error)
-    if let error = error { throw error }
+    if let error = error {
+      throw error
+    }
     guard let bindingsClient = bindingsClient else {
-      throw BindingsLoginUnknownError()
+      fatalError("BindingsLogin returned `nil` without providing error")
     }
     return Client.live(bindingsClient: bindingsClient)
   }

Sources/ElixxirDAppsSDK/ClientStorage.swift

@@ -30,7 +30,7 @@ extension ClientStorage {
       },
       createClient: {
         let ndf = try downloadNDF(environment)
-        let password = try generatePassword()
+        let password = generatePassword()
         try passwordStorage.save(password)
         try? fileManager.removeItem(at: directoryURL)
         try? fileManager.createDirectory(at: directoryURL, withIntermediateDirectories: true)

Sources/ElixxirDAppsSDK/Errors.swift

-public struct BindingsDownloadAndVerifySignedNdfWithUrlUnknownError: Error, Equatable {
-  public init() {}
-}
-
-public struct BindingsGenerateSecretUnknownError: Error, Equatable {
-  public init() {}
-}
-
-public struct PasswordStorageMissingPasswordError: Error, Equatable {
-  public init() {}
-}
-
-public struct BindingsNewClientUnknownError: Error, Equatable {
-  public init() {}
-}
-
-public struct BindingsLoginUnknownError: Error, Equatable {
-  public init() {}
-}

Sources/ElixxirDAppsSDK/NDFDownloader.swift

@@ -20,7 +20,7 @@ extension NDFDownloader {
       throw error
     }
     guard let data = data else {
-      throw BindingsDownloadAndVerifySignedNdfWithUrlUnknownError()
+      fatalError("BindingsDownloadAndVerifySignedNdfWithUrl returned `nil` without providing error")
     }
     return data
   }

Sources/ElixxirDAppsSDK/PasswordGenerator.swift

 import Bindings
 
 public struct PasswordGenerator {
-  public var run: () throws -> Data
+  public var run: () -> Data
 
-  public func callAsFunction() throws -> Data {
-    try run()
+  public func callAsFunction() -> Data {
+    run()
   }
 }
 
 extension PasswordGenerator {
   public static let live = PasswordGenerator {
     guard let secret = BindingsGenerateSecret(32) else {
-      throw BindingsGenerateSecretUnknownError()
+      fatalError("BindingsGenerateSecret returned `nil`")
     }
     return secret
   }
@@ -20,8 +20,7 @@ extension PasswordGenerator {
 #if DEBUG
 extension PasswordGenerator {
   public static let failing = PasswordGenerator {
-    struct NotImplemented: Error {}
-    throw NotImplemented()
+    Data()
   }
 }
 #endif

Sources/ElixxirDAppsSDK/PasswordStorage.swift

 import Foundation
 
 public struct PasswordStorage {
+  public struct MissingPasswordError: Error, Equatable {
+    public init() {}
+  }
+
   public init(
     save: @escaping (Data) throws -> Void,
     load: @escaping () throws -> Data