lib/ruby-debug/commands/variables.rb in ruby-debug-ide-0.4.9 vs lib/ruby-debug/commands/variables.rb in ruby-debug-ide-0.4.10

@@ -112,11 +112,16 @@
       /^\s*v(?:ar)?\s+l(?:ocal)?\s*$/
     end
     
     def execute
       locals = @state.context.frame_locals(@state.frame_pos)
-      _self = @state.context.frame_self(@state.frame_pos) 
-      locals['self'] = _self unless _self.to_s == "main"
+      _self = @state.context.frame_self(@state.frame_pos)
+      begin
+        locals['self'] = _self unless _self.to_s == "main"
+      rescue => ex
+        locals['self'] = "<Cannot evaluate self>"
+        $stderr << "Cannot evaluate self\n#{ex.class.name}: #{ex.message}\n  #{ex.backtrace.join("\n  ")}"
+      end
       print_variables(locals.keys, 'local') do |var|
         locals[var]
       end
     end