From e61ae596819107812e2100f5f8662e051d6c67a6 Mon Sep 17 00:00:00 2001
From: David Majda <david@majda.cz>
Date: Fri, 7 Oct 2016 20:49:12 +0200
Subject: [PATCH] Code style: Fix ESLint "default-case" errors

Part of #407.
---
 lib/compiler/index.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/compiler/index.js b/lib/compiler/index.js
index 432110b..121816a 100644
--- a/lib/compiler/index.js
+++ b/lib/compiler/index.js
@@ -66,8 +66,14 @@ let compiler = {
     });
 
     switch (options.output) {
-      case "parser": return eval(ast.code);
-      case "source": return ast.code;
+      case "parser":
+        return eval(ast.code);
+
+      case "source":
+        return ast.code;
+
+      default:
+        throw new Error("Invalid output format: " + options.output + ".");
     }
   }
 };