VM: Service isolate under precompilation.

runtime/vm/service_event.cc

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/service_event.h"
 
 #include "vm/message_handler.h"
 
 namespace dart {
 
@@ skipping 179 matching lines @@
     }
   } else {
     if (breakpoint() != NULL) {
       jsobj.AddProperty("breakpoint", breakpoint());
     }
   }
   if (kind() == kDebuggerSettingsUpdate) {
     JSONObject jssettings(&jsobj, "_debuggerSettings");
     isolate()->debugger()->PrintSettingsToJSONObject(&jssettings);
   }
-  if (top_frame() != NULL) {
+  if ((top_frame() != NULL) && Isolate::Current()->compilation_allowed()) {
     JSONObject jsFrame(&jsobj, "topFrame");
     top_frame()->PrintToJSONObject(&jsFrame);
     intptr_t index = 0;  // Avoid ambiguity in call to AddProperty.
     jsFrame.AddProperty("index", index);
   }
   if (exception() != NULL) {
     jsobj.AddProperty("exception", *(exception()));
   }
   if (async_continuation() != NULL && !async_continuation()->IsNull()) {
     jsobj.AddProperty("_asyncContinuation", *(async_continuation()));
@@ skipping 31 matching lines @@
   if (kind() == kVMUpdate) {
     jsobj->AddPropertyVM("vm");
   } else {
     jsobj->AddProperty("isolate", isolate());
   }
   ASSERT(timestamp_ != -1);
   jsobj->AddPropertyTimeMillis("timestamp", timestamp_);
 }
 
 }  // namespace dart