- Annotate instructions that load objects from the ObjectPool or Thread.

runtime/vm/json_stream.h

 // Copyright (c) 2013, 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.
 
 #ifndef VM_JSON_STREAM_H_
 #define VM_JSON_STREAM_H_
 
 #include "include/dart_api.h"  // for Dart_Port
 #include "platform/json.h"
 #include "vm/allocation.h"
@@ skipping 118 matching lines @@
  private:
   void Clear();
   void PostNullReply(Dart_Port port);
 
   void OpenObject(const char* property_name = NULL);
   void CloseObject();
 
   void OpenArray(const char* property_name = NULL);
   void CloseArray();
 
+  void PrintValueNull();
   void PrintValueBool(bool b);
   void PrintValue(intptr_t i);
   void PrintValue64(int64_t i);
   void PrintValueTimeMillis(int64_t millis);
   void PrintValueTimeMicros(int64_t micros);
   void PrintValue(double d);
   void PrintValueBase64(const uint8_t* bytes, intptr_t length);
   void PrintValue(const char* s);
   void PrintValue(const char* s, intptr_t len);
   void PrintValueNoEscape(const char* s);
@@ skipping 172 matching lines @@
   JSONArray(const JSONObject* obj, const char* name) : stream_(obj->stream_) {
     stream_->OpenArray(name);
   }
   explicit JSONArray(const JSONArray* arr) : stream_(arr->stream_) {
     stream_->OpenArray();
   }
   ~JSONArray() {
     stream_->CloseArray();
   }
 
+  void AddValueNull() const { stream_->PrintValueNull(); }
   void AddValue(bool b) const { stream_->PrintValueBool(b); }
   void AddValue(intptr_t i) const { stream_->PrintValue(i); }
   void AddValue64(int64_t i) const { stream_->PrintValue64(i); }
   void AddValueTimeMillis(int64_t millis) const {
     stream_->PrintValueTimeMillis(millis);
   }
   void AddValueTimeMicros(int64_t micros) const {
     stream_->PrintValueTimeMicros(micros);
   }
   void AddValue(double d) const { stream_->PrintValue(d); }
@@ skipping 29 matching lines @@
 
   friend class JSONObject;
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(JSONArray);
 };
 
 }  // namespace dart
 
 #endif  // VM_JSON_STREAM_H_