Remove FunctionsError interface

Author: dlarocque

common/api-review/functions.api.md

@@ -5,7 +5,6 @@
 ```ts
 
 import { FirebaseApp } from '@firebase/app';
-import { FirebaseError } from '@firebase/util';
 
 // @public
 export function connectFunctionsEmulator(functionsInstance: Functions, host: string, port: number): void;
@@ -17,12 +16,6 @@ export interface Functions {
     region: string;
 }
 
-// @public
-export interface FunctionsError extends FirebaseError {
-    readonly code: FunctionsErrorCode;
-    readonly details?: unknown;
-}
-
 // @public
 export type FunctionsErrorCode = `functions/${FunctionsErrorCodeCore}`;
 

packages/functions/src/error.ts

@@ -66,6 +66,7 @@ export class FunctionsError extends FirebaseError {
     readonly details?: unknown
   ) {
     super(`${FUNCTIONS_TYPE}/${code}`, message || '');
+    // TODO (dlarocque): Set this to be the root of the stack trace.
   }
 }
 

packages/functions/src/public-types.ts

@@ -15,7 +15,6 @@
  * limitations under the License.
  */
 import { FirebaseApp } from '@firebase/app';
-import { FirebaseError } from '@firebase/util';
 
 /**
  * An `HttpsCallableResult` wraps a single result from a function call.
@@ -144,23 +143,6 @@ export type FunctionsErrorCodeCore =
  */
 export type FunctionsErrorCode = `functions/${FunctionsErrorCodeCore}`;
 
-/**
- * An error returned by the Firebase Functions client SDK.
- * @public
- */
-export interface FunctionsError extends FirebaseError {
-  /**
-   * A standard error code that will be returned to the client. This also
-   * determines the HTTP status code of the response, as defined in code.proto.
-   */
-  readonly code: FunctionsErrorCode;
-
-  /**
-   * Extra data to be converted to JSON and included in the error response.
-   */
-  readonly details?: unknown;
-}
-
 declare module '@firebase/component' {
   interface NameServiceMapping {
     'functions': Functions;