avoid any view

Author: morganchen12

FirebaseSwiftUI/FirebaseAuthSwiftUI/Sources/Services/AuthService.swift

@@ -2,7 +2,8 @@
 import SwiftUI
 
 public protocol ExternalAuthProvider {
-  @MainActor var authButton: any View { get }
+  associatedtype ButtonType: View
+  @MainActor var authButton: ButtonType { get }
 }
 
 public protocol GoogleProviderProtocol: ExternalAuthProvider {
@@ -64,9 +65,9 @@ private final class AuthListenerManager {
 @Observable
 public final class AuthService {
   public init(configuration: AuthConfiguration = AuthConfiguration(), auth: Auth = Auth.auth(),
-              googleProvider: GoogleProviderProtocol? = nil,
-              facebookProvider: FacebookProviderProtocol? = nil,
-              phoneAuthProvider: PhoneAuthProviderProtocol? = nil) {
+              googleProvider: (any GoogleProviderProtocol)? = nil,
+              facebookProvider: (any FacebookProviderProtocol)? = nil,
+              phoneAuthProvider: (any PhoneAuthProviderProtocol)? = nil) {
     self.auth = auth
     self.configuration = configuration
     self.googleProvider = googleProvider
@@ -87,14 +88,14 @@ public final class AuthService {
   public var errorMessage = ""
   public let passwordPrompt: PasswordPromptCoordinator = .init()
 
-  public var googleProvider: GoogleProviderProtocol?
-  public var facebookProvider: FacebookProviderProtocol?
-  public var phoneAuthProvider: PhoneAuthProviderProtocol?
+  public var googleProvider: (any GoogleProviderProtocol)?
+  public var facebookProvider: (any FacebookProviderProtocol)?
+  public var phoneAuthProvider: (any PhoneAuthProviderProtocol)?
 
   private var listenerManager: AuthListenerManager?
   private var signedInCredential: AuthCredential?
 
-  private var safeGoogleProvider: GoogleProviderProtocol {
+  private var safeGoogleProvider: any GoogleProviderProtocol {
     get throws {
       guard let provider = googleProvider else {
         throw AuthServiceError
@@ -104,7 +105,7 @@ public final class AuthService {
     }
   }
 
-  private var safeFacebookProvider: FacebookProviderProtocol {
+  private var safeFacebookProvider: any FacebookProviderProtocol {
     get throws {
       guard let provider = facebookProvider else {
         throw AuthServiceError
@@ -114,7 +115,7 @@ public final class AuthService {
     }
   }
 
-  private var safePhoneAuthProvider: PhoneAuthProviderProtocol {
+  private var safePhoneAuthProvider: any PhoneAuthProviderProtocol {
     get throws {
       guard let provider = phoneAuthProvider else {
         throw AuthServiceError

FirebaseSwiftUI/FirebaseFacebookSwiftUI/Sources/Services/FacebookProviderSwift.swift

@@ -35,7 +35,7 @@ public class FacebookProviderSwift: FacebookProviderProtocol {
     shaNonce = CommonUtils.sha256Hash(of: rawNonce)
   }
 
-  @MainActor public var authButton: any View {
+  @MainActor public var authButton: SignInWithFacebookButton {
     return SignInWithFacebookButton()
   }
 

FirebaseSwiftUI/FirebaseGoogleSwiftUI/Sources/Services/GoogleProviderSwift.swift

@@ -25,7 +25,7 @@ public class GoogleProviderSwift: @preconcurrency GoogleProviderProtocol {
     self.clientID = clientID
   }
 
-  @MainActor public var authButton: any View {
+  @MainActor public var authButton: GoogleSignInButton {
     return GoogleSignInButton {
       Task {
         try await self.signInWithGoogle(clientID: self.clientID)

FirebaseSwiftUI/FirebasePhoneAuthSwiftUI/Sources/Services/PhoneAuthProviderSwift.swift

@@ -6,7 +6,7 @@ public typealias VerificationID = String
 
 public class PhoneAuthProviderSwift: @preconcurrency PhoneAuthProviderProtocol {
 
-  public var authButton: any View {
+  public var authButton: Button<Text> {
     // TODO: implement me
     return Button("Phone", action: { })
   }