Expose classes, codes, functions, and libraries collections.

runtime/vm/object_id_ring.cc

 // 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.
 
 #include "platform/assert.h"
 #include "vm/dart_api_state.h"
 #include "vm/object_id_ring.h"
 
 namespace dart {
 
@@ skipping 111 matching lines @@
     bottom = serial_num_ - capacity_;
   }
   return id >= bottom;
 }
 
 
 bool ObjectIdRing::IsValidId(int32_t id) {
   if (id == kInvalidId) {
     return false;
   }
+  if (id < 0) {
+    return false;
+  }
   if (id >= max_serial_) {
     return false;
   }
   ASSERT((id >= 0) && (id < max_serial_));
   if (wrapped_) {
     // Serial number has wrapped around to 0.
     if (serial_num_ >= capacity_) {
       // Serial number is larger than capacity, the serial
       // numbers are contiguous again.
       wrapped_ = false;
@@ skipping 13 matching lines @@
       const int32_t max_serial_num = max_serial_;
       const int32_t bottom = max_serial_num - (capacity_ - serial_num_);
       return id >= bottom && bottom < max_serial_num;
     }
   }
   ASSERT(wrapped_ == false);
   return IsValidContiguous(id);
 }
 
 }  // namespace dart