forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
map_traits_flat_map.h
56 lines (43 loc) · 1.92 KB
/
map_traits_flat_map.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
// Copyright 2018 The Chromium 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 MOJO_PUBLIC_CPP_BINDINGS_MAP_TRAITS_FLAT_MAP_H_
#define MOJO_PUBLIC_CPP_BINDINGS_MAP_TRAITS_FLAT_MAP_H_
#include "base/containers/flat_map.h"
#include "mojo/public/cpp/bindings/map_traits.h"
namespace mojo {
template <typename K, typename V, typename Compare>
struct MapTraits<base::flat_map<K, V, Compare>> {
using Key = K;
using Value = V;
using Iterator = typename base::flat_map<K, V, Compare>::iterator;
using ConstIterator = typename base::flat_map<K, V, Compare>::const_iterator;
static size_t GetSize(const base::flat_map<K, V, Compare>& input) {
return input.size();
}
static ConstIterator GetBegin(const base::flat_map<K, V, Compare>& input) {
return input.begin();
}
static Iterator GetBegin(base::flat_map<K, V, Compare>& input) {
return input.begin();
}
static void AdvanceIterator(ConstIterator& iterator) { iterator++; }
static void AdvanceIterator(Iterator& iterator) { iterator++; }
static const K& GetKey(Iterator& iterator) { return iterator->first; }
static const K& GetKey(ConstIterator& iterator) { return iterator->first; }
static V& GetValue(Iterator& iterator) { return iterator->second; }
static const V& GetValue(ConstIterator& iterator) { return iterator->second; }
template <typename MaybeConstKeyType, typename MaybeConstValueType>
static bool Insert(base::flat_map<K, V, Compare>& input,
MaybeConstKeyType&& key,
MaybeConstValueType&& value) {
input.emplace(std::forward<MaybeConstKeyType>(key),
std::forward<MaybeConstValueType>(value));
return true;
}
static void SetToEmpty(base::flat_map<K, V, Compare>* output) {
output->clear();
}
};
} // namespace mojo
#endif // MOJO_PUBLIC_CPP_BINDINGS_MAP_TRAITS_FLAT_MAP_H_