Allocation sinking for contexts.

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 VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 4049 matching lines @@
   void set_parent(const Context& parent) const {
     StorePointer(&raw_ptr()->parent_, parent.raw());
   }
   static intptr_t parent_offset() { return OFFSET_OF(RawContext, parent_); }
 
   intptr_t num_variables() const { return raw_ptr()->num_variables_; }
   static intptr_t num_variables_offset() {
     return OFFSET_OF(RawContext, num_variables_);
   }
 
-  RawInstance* At(intptr_t context_index) const {
-    return *InstanceAddr(context_index);
+  RawObject* At(intptr_t context_index) const {
+    return *ObjectAddr(context_index);
   }
-  inline void SetAt(intptr_t context_index, const Instance& value) const;
+  inline void SetAt(intptr_t context_index, const Object& value) const;
 
   void Dump(int indent = 0) const;
 
   static const intptr_t kBytesPerElement = kWordSize;
   static const intptr_t kMaxElements = kSmiMax / kBytesPerElement;
 
   static intptr_t variable_offset(intptr_t context_index) {
     return OFFSET_OF_RETURNED_VALUE(RawContext, data) +
            (kWordSize * context_index);
   }
 
   static intptr_t InstanceSize() {
     ASSERT(sizeof(RawContext) == OFFSET_OF_RETURNED_VALUE(RawContext, data));
     return 0;
   }
 
   static intptr_t InstanceSize(intptr_t len) {
     ASSERT(0 <= len && len <= kMaxElements);
     return RoundedAllocationSize(sizeof(RawContext) + (len * kBytesPerElement));
   }
 
   static RawContext* New(intptr_t num_variables,
                          Heap::Space space = Heap::kNew);
 
  private:
-  RawInstance* const* InstanceAddr(intptr_t context_index) const {
+  RawObject* const* ObjectAddr(intptr_t context_index) const {
     ASSERT((context_index >= 0) && (context_index < num_variables()));
     return &raw_ptr()->data()[context_index];
   }
 
   void set_num_variables(intptr_t num_variables) const {
     StoreNonPointer(&raw_ptr()->num_variables_, num_variables);
   }
 
   FINAL_HEAP_OBJECT_IMPLEMENTATION(Context, Object);
   friend class Class;
@@ skipping 3329 matching lines @@
 
 
 void Field::SetOffset(intptr_t value_in_bytes) const {
   ASSERT(!is_static());  // SetOffset is valid only for instance fields.
   ASSERT(kWordSize != 0);
   StorePointer(&raw_ptr()->value_,
                static_cast<RawInstance*>(Smi::New(value_in_bytes / kWordSize)));
 }
 
 
-void Context::SetAt(intptr_t index, const Instance& value) const {
-  StorePointer(InstanceAddr(index), value.raw());
+void Context::SetAt(intptr_t index, const Object& value) const {
+  StorePointer(ObjectAddr(index), value.raw());
 }
 
 
 intptr_t Instance::GetNativeField(int index) const {
   ASSERT(IsValidNativeIndex(index));
   NoGCScope no_gc;
   RawTypedData* native_fields =
       reinterpret_cast<RawTypedData*>(*NativeFieldsAddr());
   if (native_fields == TypedData::null()) {
     return 0;
@@ skipping 73 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_