From f0e03bbddc9263f44a19810c2857155bc41e53f2 Mon Sep 17 00:00:00 2001
From: Landon Abney <Landonabney@gmail.com>
Date: Wed, 6 Dec 2017 09:42:48 -0800
Subject: [PATCH] Guard against invalid TextEditor and empty paths

Occasionally `lint()` somehow gets called with invalid `TextEditor`s, or
ones without a path. When these cases are hit simply return `null`
instead of trying to process them.

Fixes #527.
---
 lib/main.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/main.js b/lib/main.js
index 8a1eb39..a1a7925 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -179,11 +179,21 @@ export default {
       scope: 'file',
       lintOnFly: true,
       lint: async (textEditor) => {
-        loadDeps();
+        if (!atom.workspace.isTextEditor(textEditor)) {
+          // Invalid TextEditor
+          return null;
+        }
 
         const filePath = textEditor.getPath();
+        if (!filePath) {
+          // Invalid path
+          return null;
+        }
         const fileText = textEditor.getText();
 
+        // Load dependencies if they aren't already
+        loadDeps();
+
         const parameters = ['--format=default'];
 
         const projectPath = atom.project.relativizePath(filePath)[0];