Introduced copy constructor for List<T, P> and changed constructor of Virtual...

src/list-inl.h

 // Copyright 2006-2009 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 16 matching lines @@
 
 #ifndef V8_LIST_INL_H_
 #define V8_LIST_INL_H_
 
 #include "list.h"
 
 namespace v8 { namespace internal {
 
 
 template<typename T, class P>
+List<T, P>::List(const List<T, P>& other) {
+  ASSERT(other.capacity() >= 0);
+  capacity_ = other.capacity();
+  length_ = other.length();
+  if (capacity_ > 0) {
+    data_ = NewData(capacity_);
+    int copy_size = length_ * sizeof(T);
+    const int kMinMemCpySize = 64;
+    if (copy_size < kMinMemCpySize) {
+      for (int i = 0; i < length_; i++) data_[i] = other.data_[i];
+    } else {
+      memcpy(data_, other.data_, copy_size);
+    }
+  } else {
+    data_ = NULL;
+  }
+}
+
+
+template<typename T, class P>
 void List<T, P>::Add(const T& element) {
   if (length_ < capacity_) {
     data_[length_++] = element;
   } else {
     List<T, P>::ResizeAdd(element);
   }
 }
 
 
 // Use two layers of inlining so that the non-inlined function can
@@ skipping 91 matching lines @@
   ASSERT(capacity >= 0);
   data_ = (capacity > 0) ? NewData(capacity) : NULL;
   capacity_ = capacity;
   length_ = 0;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LIST_INL_H_