zone-utils.h

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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef V8_ZONE_ZONE_UTILS_H_
#define V8_ZONE_ZONE_UTILS_H_
 
#include <algorithm>
#include <type_traits>
 
#include "src/base/vector.h"
#include "src/zone/zone.h"
 
namespace v8 {
namespace internal {
 
template <typename T>
base::Vector<T> CloneVector(Zone* zone, base::Vector<const T> other) {
  int length = other.length();
  if (length == 0) return base::Vector<T>();
 
  T* data = zone->AllocateArray<T>(length);
  if (std::is_trivially_copyable<T>::value) {
    MemCopy(data, other.data(), length * sizeof(T));
  } else {
    std::copy(other.begin(), other.end(), data);
  }
  return base::Vector<T>(data, length);
}
 
}  // namespace internal
}  // namespace v8
 
#endif  // V8_ZONE_ZONE_UTILS_H_