debugger: prevent crash when backtrace doesn't come back

2011-01-27 17:44:42 -08:00 · 2011-01-27 17:44:42 -08:00 · 1f041fe73e
commit 1f041fe73e
parent fbb74784b5
1 changed files with 6 additions and 0 deletions
--- a/lib/_debugger.js
+++ b/lib/_debugger.js
@ -261,6 +261,12 @@ Client.prototype.reqEval = function(expression, cb) {

  // Otherwise we need to get the current frame to see which scopes it has.
  this.reqBacktrace(function(bt) {
+    if (!bt.frames) {
+      // ??
+      cb({});
+      return;
+    }
+
    var frame = bt.frames[self.currentFrame];

    var evalFrames = frame.scopes.map(function(s) {