Use CopyElements for SetFastDoubleElementsCapacityAndLength

src/objects-inl.h

 // Copyright 2012 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 1707 matching lines @@
   WRITE_DOUBLE_FIELD(this, offset, hole_nan_as_double());
 }
 
 
 bool FixedDoubleArray::is_the_hole(int index) {
   int offset = kHeaderSize + index * kDoubleSize;
   return is_the_hole_nan(READ_DOUBLE_FIELD(this, offset));
 }
 
 
-void FixedDoubleArray::Initialize(FixedDoubleArray* from) {
-  int old_length = from->length();
-  ASSERT(old_length < length());
-  if (old_length * kDoubleSize >= OS::kMinComplexMemCopy) {
-    OS::MemCopy(FIELD_ADDR(this, kHeaderSize),
-                FIELD_ADDR(from, kHeaderSize),
-                old_length * kDoubleSize);
-  } else {
-    for (int i = 0; i < old_length; ++i) {
-      if (from->is_the_hole(i)) {
-        set_the_hole(i);
-      } else {
-        set(i, from->get_scalar(i));
-      }
-    }
-  }
-  int offset = kHeaderSize + old_length * kDoubleSize;
-  for (int current = from->length(); current < length(); ++current) {
-    WRITE_DOUBLE_FIELD(this, offset, hole_nan_as_double());
-    offset += kDoubleSize;
-  }
-}
-
-
-void FixedDoubleArray::Initialize(FixedArray* from) {
-  int old_length = from->length();
-  ASSERT(old_length <= length());
-  for (int i = 0; i < old_length; i++) {
-    Object* hole_or_object = from->get(i);
-    if (hole_or_object->IsTheHole()) {
-      set_the_hole(i);
-    } else {
-      set(i, hole_or_object->Number());
-    }
-  }
-  int offset = kHeaderSize + old_length * kDoubleSize;
-  for (int current = from->length(); current < length(); ++current) {
-    WRITE_DOUBLE_FIELD(this, offset, hole_nan_as_double());
-    offset += kDoubleSize;
-  }
-}
-
-
-void FixedDoubleArray::Initialize(SeededNumberDictionary* from) {
-  int offset = kHeaderSize;
-  for (int current = 0; current < length(); ++current) {
-    WRITE_DOUBLE_FIELD(this, offset, hole_nan_as_double());
-    offset += kDoubleSize;
-  }
-  for (int i = 0; i < from->Capacity(); i++) {
-    Object* key = from->KeyAt(i);
-    if (key->IsNumber()) {
-      uint32_t entry = static_cast<uint32_t>(key->Number());
-      set(entry, from->ValueAt(i)->Number());
-    }
-  }
-}
-
-
 WriteBarrierMode HeapObject::GetWriteBarrierMode(const AssertNoAllocation&) {
   Heap* heap = GetHeap();
   if (heap->incremental_marking()->IsMarking()) return UPDATE_WRITE_BARRIER;
   if (heap->InNewSpace(this)) return SKIP_WRITE_BARRIER;
   return UPDATE_WRITE_BARRIER;
 }
 
 
 void FixedArray::set(int index,
                      Object* value,
@@ skipping 3154 matching lines @@
 #undef WRITE_INT_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_