debugger: fix unhandled error in setBreakpoint

bajtos · chrisdickinson · commit e93ff4f0ce1b · 2014-12-17T13:00:48.000-08:00
Fix Interface.setBreakpoint() to correctly handle an attempt to set a breakpoint in the current script when there is no current script. This usually happens when the debugged process is not paused. Fixes: #6453 PR-URL: #6460 Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
diff --git a/lib/_debugger.js b/lib/_debugger.js
@@ -1360,6 +1360,12 @@ Interface.prototype.setBreakpoint = function(script, line,
     script = this.client.currentScript;
   }
 
+  if (script === undefined) {
+    this.print('Cannot determine the current script, ' +
+        'make sure the debugged process is paused.');
+    return;
+  }
+
   if (/\(\)$/.test(script)) {
     // setBreakpoint('functionname()');
     var req = {
