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// Formatting library for C++ - mock allocator 
// 
// Copyright (c) 2012 - present, Victor Zverovich 
// All rights reserved. 
// 
// For the license information refer to format.h. 
 
#ifndef FMT_MOCK_ALLOCATOR_H_ 
#define FMT_MOCK_ALLOCATOR_H_ 
 
#include "fmt/format.h" 
#include <gmock/gmock.h> 
 
template <typename T> class mock_allocator { 
 public: 
  mock_allocator() {} 
  mock_allocator(const mock_allocator&) {} 
  typedef T value_type; 
  MOCK_METHOD1_T(allocate, T*(size_t n));
  MOCK_METHOD2_T(deallocate, void(T* p, size_t n));
}; 
 
template <typename Allocator> class allocator_ref { 
 private: 
  Allocator* alloc_; 
 
  void move(allocator_ref& other) { 
    alloc_ = other.alloc_; 
    other.alloc_ = nullptr; 
  } 
 
 public: 
  typedef typename Allocator::value_type value_type; 
 
  explicit allocator_ref(Allocator* alloc = nullptr) : alloc_(alloc) {} 
 
  allocator_ref(const allocator_ref& other) : alloc_(other.alloc_) {} 
  allocator_ref(allocator_ref&& other) { move(other); } 
 
  allocator_ref& operator=(allocator_ref&& other) { 
    assert(this != &other); 
    move(other); 
    return *this; 
  } 
 
  allocator_ref& operator=(const allocator_ref& other) { 
    alloc_ = other.alloc_; 
    return *this; 
  } 
 
 public: 
  Allocator* get() const { return alloc_; } 
 
  value_type* allocate(size_t n) {
    return std::allocator_traits<Allocator>::allocate(*alloc_, n); 
  } 
  void deallocate(value_type* p, size_t n) { alloc_->deallocate(p, n); }
}; 
 
#endif  // FMT_MOCK_ALLOCATOR_H_