Add a version of heap snapshots that use only fields and stack frames as roots and only include ins…

runtime/vm/isolate.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 "vm/isolate.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
 #include "platform/text_buffer.h"
@@ skipping 1772 matching lines @@
 Isolate* Isolate::isolates_list_head_ = NULL;
 bool Isolate::creation_enabled_ = false;
 
 void Isolate::IterateObjectPointers(ObjectPointerVisitor* visitor,
                                     bool validate_frames) {
   HeapIterationScope heap_iteration_scope;
   VisitObjectPointers(visitor, validate_frames);
 }
 
 
+void Isolate::IterateStackPointers(ObjectPointerVisitor* visitor,
+                                   bool validate_frames) {
+  HeapIterationScope heap_iteration_scope;
+  VisitStackPointers(visitor, validate_frames);
+}
+
+
 void Isolate::VisitObjectPointers(ObjectPointerVisitor* visitor,
                                   bool validate_frames) {
   ASSERT(visitor != NULL);
 
   // Visit objects in the object store.
   object_store()->VisitObjectPointers(visitor);
 
   // Visit objects in the class table.
   class_table()->VisitObjectPointers(visitor);
 
@@ skipping 51 matching lines @@
   if (ServiceIsolate::IsServiceIsolate(this)) {
     ServiceIsolate::VisitObjectPointers(visitor);
   }
 #endif  // !defined(PRODUCT)
 
   // Visit objects that are being used for deoptimization.
   if (deopt_context() != NULL) {
     deopt_context()->VisitObjectPointers(visitor);
   }
 
+  VisitStackPointers(visitor, validate_frames);
+}
+
+
+void Isolate::VisitStackPointers(ObjectPointerVisitor* visitor,
+                                 bool validate_frames) {
   // Visit objects in all threads (e.g., Dart stack, handles in zones).
   thread_registry()->VisitObjectPointers(visitor, validate_frames);
 }
 
 
 void Isolate::VisitWeakPersistentHandles(HandleVisitor* visitor) {
   if (api_state() != NULL) {
     api_state()->VisitWeakHandles(visitor);
   }
 }
@@ skipping 1047 matching lines @@
 void IsolateSpawnState::DecrementSpawnCount() {
   ASSERT(spawn_count_monitor_ != NULL);
   ASSERT(spawn_count_ != NULL);
   MonitorLocker ml(spawn_count_monitor_);
   ASSERT(*spawn_count_ > 0);
   *spawn_count_ = *spawn_count_ - 1;
   ml.Notify();
 }
 
 }  // namespace dart