Clear JS function result caches in all global contexts.

src/heap.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 563 matching lines @@
 
   Shrink();
   if (new_space_.CommitFromSpaceIfNeeded()) return;
 
   // Committing memory to from space failed again.
   // Memory is exhausted and we will die.
   V8::FatalProcessOutOfMemory("Committing semi space failed.");
 }
 
 
-class ClearThreadJSFunctionResultCachesVisitor: public ThreadVisitor  {
-  virtual void VisitThread(ThreadLocalTop* top) {
-    Context* context = top->context_;
-    if (context == NULL) return;
+void Heap::ClearJSFunctionResultCaches() {
+  if (Bootstrapper::IsActive()) return;
 
+  Object* context = global_contexts_list_;
+  while (!context->IsUndefined()) {
+    // Get the caches for this context:
     FixedArray* caches =
-      context->global()->global_context()->jsfunction_result_caches();
+      Context::cast(context)->jsfunction_result_caches();
+    // Clear the caches:
     int length = caches->length();
     for (int i = 0; i < length; i++) {
       JSFunctionResultCache::cast(caches->get(i))->Clear();
     }
+    // Get the next context:
+    context = Context::cast(context)->get(Context::NEXT_CONTEXT_LINK);
   }
-};
-
-
-void Heap::ClearJSFunctionResultCaches() {
-  if (Bootstrapper::IsActive()) return;
-  ClearThreadJSFunctionResultCachesVisitor visitor;
-  ThreadManager::IterateArchivedThreads(&visitor);
 }
 
 
 void Heap::ClearNormalizedMapCaches() {
   if (Bootstrapper::IsActive()) return;
 
   Object* context = global_contexts_list_;
   while (!context->IsUndefined()) {
     Context::cast(context)->normalized_map_cache()->Clear();
     context = Context::cast(context)->get(Context::NEXT_CONTEXT_LINK);
@@ skipping 4622 matching lines @@
 void ExternalStringTable::TearDown() {
   new_space_strings_.Free();
   old_space_strings_.Free();
 }
 
 
 List<Object*> ExternalStringTable::new_space_strings_;
 List<Object*> ExternalStringTable::old_space_strings_;
 
 } }  // namespace v8::internal