Cache hash code for closures.

runtime/vm/object.h

 // 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.
 
 #ifndef RUNTIME_VM_OBJECT_H_
 #define RUNTIME_VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 2329 matching lines @@
   // If none exists yet, create one and remember it.
   RawFunction* ImplicitClosureFunction() const;
   void DropUncompiledImplicitClosureFunction() const;
 
   // Return the closure implicitly created for this function.
   // If none exists yet, create one and remember it.
   RawInstance* ImplicitStaticClosure() const;
 
   RawInstance* ImplicitInstanceClosure(const Instance& receiver) const;
 
+  RawSmi* GetClosureHashCode() const;
+
   // Redirection information for a redirecting factory.
   bool IsRedirectingFactory() const;
   RawType* RedirectionType() const;
   void SetRedirectionType(const Type& type) const;
   RawString* RedirectionIdentifier() const;
   void SetRedirectionIdentifier(const String& identifier) const;
   RawFunction* RedirectionTarget() const;
   void SetRedirectionTarget(const Function& target) const;
 
   RawFunction::Kind kind() const {
@@ skipping 648 matching lines @@
   RawFunction* parent_function() const { return raw_ptr()->parent_function_; }
   void set_parent_function(const Function& value) const;
 
   // Signature type of this closure function.
   RawType* signature_type() const { return raw_ptr()->signature_type_; }
   void set_signature_type(const Type& value) const;
 
   RawInstance* implicit_static_closure() const { return raw_ptr()->closure_; }
   void set_implicit_static_closure(const Instance& closure) const;
 
+  RawObject* hash() const { return raw_ptr()->hash_; }
+  void set_hash(intptr_t value) const;
+
   static RawClosureData* New();
 
   FINAL_HEAP_OBJECT_IMPLEMENTATION(ClosureData, Object);
   friend class Class;
   friend class Function;
   friend class HeapProfiler;
 };
 
 
 class SignatureData : public Object {
@@ skipping 5902 matching lines @@
 
 inline void TypeArguments::SetHash(intptr_t value) const {
   // This is only safe because we create a new Smi, which does not cause
   // heap allocation.
   StoreSmi(&raw_ptr()->hash_, Smi::New(value));
 }
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_OBJECT_H_