From 5daa492f6824f591a47394d609b5d1018760b921 Mon Sep 17 00:00:00 2001
From: Hornwitser <github@hornwitser.no>
Date: Sat, 26 Jun 2021 17:27:36 +0200
Subject: [PATCH] Emitt more useful error on parse error

Rethrow parse errors with the JSON content that failed to parse for JSON
content sent to Clusterio from Factorio.
---
 packages/lib/factorio/server.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/lib/factorio/server.js b/packages/lib/factorio/server.js
index d61b49c9..5b08447a 100644
--- a/packages/lib/factorio/server.js
+++ b/packages/lib/factorio/server.js
@@ -605,7 +605,11 @@ class FactorioServer extends events.EventEmitter {
 		let type = line.slice(channelEnd + 1, channelEnd + 2).toString("utf-8");
 		let content;
 		if (type === "j") {
-			content = JSON.parse(line.slice(channelEnd + 2).toString("utf-8"));
+			try {
+				content = JSON.parse(line.slice(channelEnd + 2).toString("utf-8"));
+			} catch (err) {
+				throw new Error(`Malformed JSON to ${channel}: ${line.slice(channelEnd + 2).toString("utf-8")}`);
+			}
 
 		} else if (type === "f") {
 			let fileName = line.slice(channelEnd + 2).toString("utf-8");