https://github.com/TypeStrong/atom-typescript/issues/613

Author: basarat

grammartests/611/implements.js

@@ -0,0 +1,12 @@
+declare module "highlighting" {
+
+    export interface I {}
+
+    export class E0 extends Error {
+        OK: string
+    }
+    export class E1 extends Error implements I {}
+    export class E2 extends Error {
+        NotOK: string
+    }
+}

grammartests/611/implements.ts

@@ -13,6 +13,7 @@
     ],
     "files": [
         "./611/generic.ts",
+        "./611/implements.ts",
         "./grammartest.ts"
     ]
 }