From 22caa199f2e5417445c147005cfc64bb165c1799 Mon Sep 17 00:00:00 2001
From: Jan Holthuis <jan.holthuis@ruhr-uni-bochum.de>
Date: Wed, 14 Apr 2021 23:01:43 +0200
Subject: [PATCH] Actually return promise in Comb::processFile

This makes it possible to catch exceptions in `processFiles` in
`cli.js`. Without this, node raises an error when promise throws an
exception:

    node:internal/process/promises:245
              triggerUncaughtException(err, true /* fromPromise */);
              ^

    [UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason "[object Object]".] {
      code: 'ERR_UNHANDLED_REJECTION'
    }
---
 src/core.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core.js b/src/core.js
index eea63d2f..419f60ea 100644
--- a/src/core.js
+++ b/src/core.js
@@ -188,7 +188,7 @@ class Comb {
     return new Promise(resolve => {
       vfs.read(path, 'utf8').then(function(data) {
         let syntax = that._extractSyntax(path);
-        that.processString(data, {
+        return that.processString(data, {
           syntax: syntax,
           filename: path
         }).then(function(processedData) {