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
|
/*
* Copyright (C) 2015 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Michi Henning <michi.henning@canonical.com>
*/
#pragma once
#include <string>
namespace core
{
/**
Traits for serialization and deserialization of cache custom types.
To use custom types, specialize this template
for each custom type (other than string) in the `core` namespace.
\warning Do _not_ specialize this struct for `std::string`!
Doing so has no effect.
\see PersistentCache
*/
template <typename T>
struct CacheCodec
{
/**
\brief Converts a value of custom type T into a string.
*/
static std::string encode(T const& value);
/**
\brief Converts a string into a value of custom type T.
*/
static T decode(std::string const& s);
};
} // namespace core
|
