third_party/WebKit/Source/wtf/RefVector.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef RefVector_h
   6 #define RefVector_h
   7
   8 #include "wtf/RefCounted.h"
   9 #include "wtf/RefPtr.h"
  10 #include "wtf/Vector.h"
  11
  12 namespace blink {
  13
  14 template <typename T>
  15 class RefVector : public RefCounted<RefVector<T>> {
  16 public:
  17     static PassRefPtr<RefVector> create() { return adoptRef(new RefVector<T>); }
  18     PassRefPtr<RefVector> copy() { return adoptRef(new RefVector<T>(*this)); }
  19
  20     const T& operator[](size_t i) const { return m_vector[i]; }
  21     T& operator[](size_t i) { return m_vector[i]; }
  22     const T& at(size_t i) const { return m_vector.at(i); }
  23     T& at(size_t i) { return m_vector.at(i); }
  24
  25     bool operator==(const RefVector& o) const { return m_vector == o.m_vector; }
  26     bool operator!=(const RefVector& o) const { return m_vector != o.m_vector; }
  27
  28     size_t size() const { return m_vector.size(); }
  29     bool isEmpty() const { return !size(); }
  30     void append(const T& decoration) { m_vector.append(decoration); }
  31     const Vector<T>& vector() const { return m_vector; }
  32
  33 private:
  34     Vector<T> m_vector;
  35     RefVector() { }
  36     RefVector(const RefVector& o) : m_vector(o.m_vector) { }
  37 };
  38
  39 } // namespace blink
  40
  41 #endif // RefVector_h