From 01298466b2c850e912a7ef91a8829f41b71a6450 Mon Sep 17 00:00:00 2001
From: Owen Pearson <owen.pearson@ably.com>
Date: Fri, 17 Feb 2023 11:42:36 +0000
Subject: [PATCH] fix: `ErrorInfo` extends `Error`

---
 src/common/lib/client/realtimechannel.ts | 6 +-----
 src/common/lib/types/errorinfo.ts        | 3 ++-
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/common/lib/client/realtimechannel.ts b/src/common/lib/client/realtimechannel.ts
index 8bd065a1fa..6185bd017e 100644
--- a/src/common/lib/client/realtimechannel.ts
+++ b/src/common/lib/client/realtimechannel.ts
@@ -114,11 +114,7 @@ class RealtimeChannel extends Channel {
   }
 
   static invalidStateError(state: string): ErrorInfo {
-    return {
-      statusCode: 400,
-      code: 90001,
-      message: 'Channel operation failed as channel state is ' + state,
-    };
+    return new ErrorInfo('Channel operation failed as channel state is ' + state, 90001, 400);
   }
 
   static processListenerArgs(args: unknown[]): any[] {
diff --git a/src/common/lib/types/errorinfo.ts b/src/common/lib/types/errorinfo.ts
index 913f7677f7..bcd7f91458 100644
--- a/src/common/lib/types/errorinfo.ts
+++ b/src/common/lib/types/errorinfo.ts
@@ -1,7 +1,7 @@
 import Platform from 'common/platform';
 import * as Utils from '../util/utils';
 
-export default class ErrorInfo {
+export default class ErrorInfo extends Error {
   message: string;
   code: number | null;
   statusCode?: number;
@@ -9,6 +9,7 @@ export default class ErrorInfo {
   href?: string;
 
   constructor(message: string, code: number | null, statusCode?: number, cause?: string | Error | ErrorInfo) {
+    super(message);
     this.message = message;
     this.code = code;
     this.statusCode = statusCode;