Evaluate expression in the context of a class

runtime/bin/dbg_message.cc

 // Copyright (c) 2012, 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 "bin/dbg_connection.h"
 #include "bin/dbg_message.h"
 #include "bin/dartutils.h"
 #include "bin/thread.h"
 #include "bin/utils.h"
 
@@ skipping 635 matching lines @@
   ASSERT(in_msg != NULL);
   MessageParser msg_parser(in_msg->buffer(), in_msg->buffer_len());
   int msg_id = msg_parser.MessageId();
   Dart_Handle target;
 
   if (msg_parser.HasParam("libraryId")) {
     in_msg->SendErrorReply(msg_id,
                            "libararyId evaluation target not supported");
     return false;
   } else if (msg_parser.HasParam("classId")) {
-    in_msg->SendErrorReply(msg_id,
-                           "classId evaluation target not supported");
-    return false;
+    intptr_t cls_id = msg_parser.GetIntParam("classId");
+    target = Dart_GetClassFromId(cls_id);
   } else if (msg_parser.HasParam("objectId")) {
     intptr_t obj_id = msg_parser.GetIntParam("objectId");
     target = Dart_GetCachedObject(obj_id);
   } else {
     in_msg->SendErrorReply(msg_id, "illegal evaluation target");
     return false;
   }
 
   if (Dart_IsError(target)) {
     in_msg->SendErrorReply(msg_id, Dart_GetError(target));
@@ skipping 634 matching lines @@
     } else {
       ASSERT(kind == kShutdown);
       RemoveIsolateMsgQueue(isolate_id);
     }
   }
   Dart_ExitScope();
 }
 
 }  // namespace bin
 }  // namespace dart