Merge 55896ff into a6b4920

bucharest-gold · Oct 31, 2016 · 3b4e808 · 3b4e808
2 parents a6b4920 + 55896ff
commit 3b4e808
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/trace_hooks.js b/lib/trace_hooks.js
@@ -4,6 +4,9 @@ const asyncWrap = process.binding('async_wrap');
 const filters = new Set();
 
 const enable = function activate () {
+  if (filters.size === 0) {
+    throw new Error('You need to add at least one filter to see the traces.');
+  }
   asyncWrap.enable();
 };