PR feedback

Author: sam-gc

packages/auth/src/core/errors.ts

@@ -359,7 +359,7 @@ export interface ErrorMapRetriever extends AuthErrorMap {
   (): ErrorMap<AuthErrorCode>;
 }
 
-export function _prodErrorMap(): ErrorMap<AuthErrorCode> {
+function _prodErrorMap(): ErrorMap<AuthErrorCode> {
   // We will include this one message in the prod error map since by the very
   // nature of this error, developers will never be able to see the message
   // using the debugErrorMap (which is installed during auth initialization).

packages/auth/src/core/util/assert.ts

@@ -22,7 +22,8 @@ import {
   _DEFAULT_AUTH_ERROR_FACTORY,
   AuthErrorCode,
   AuthErrorParams,
-  _prodErrorMap
+  prodErrorMap,
+  ErrorMapRetriever
 } from '../errors';
 import { _logError } from './log';
 
@@ -83,7 +84,7 @@ export function _createError<K extends AuthErrorCode>(
 }
 
 export function _errorWithCustomMessage(auth: Auth, code: AuthErrorCode, message: string): FirebaseError {
-  const errorMap = {..._prodErrorMap(), [code]: message};
+  const errorMap = {...(prodErrorMap as ErrorMapRetriever)(), [code]: message};
   const factory = new ErrorFactory<AuthErrorCode, AuthErrorParams>(
     'auth',
     'Firebase',