From 07dd5d2fe9438f3683af344da69b501389d0420d Mon Sep 17 00:00:00 2001
From: Jeroen Engels <jfm.engels@gmail.com>
Date: Fri, 1 Oct 2021 23:46:13 +0200
Subject: [PATCH] Throw an error if outputFilePath is not defined

---
 src/run.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/run.ts b/src/run.ts
index 42b5281..4d20a62 100644
--- a/src/run.ts
+++ b/src/run.ts
@@ -19,6 +19,10 @@ export async function run(
   },
   log: (message?: any, ...optionalParams: any[]) => void
 ) {
+  if (!options.outputFilePath) {
+    throw new Error('Missing an output file path');
+  }
+
   const dirname = process.cwd();
   let jsSource: string = '';
   let elmFilePath = undefined;