blob: b1567b052a8fa4d2dd938f4be34672aa552d168d (
plain)
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
57
58
|
#pragma once
#include <erebos/identity.h>
#include <erebos/uuid.h>
#include <optional>
namespace erebos {
using std::optional;
using std::vector;
class LocalState
{
public:
LocalState();
explicit LocalState(const Ref &);
static LocalState load(const Ref & ref) { return LocalState(ref); }
Ref store(const Storage &) const;
static const UUID headTypeId;
const optional<Identity> & identity() const;
LocalState identity(const Identity &) const;
template<class T> optional<T> shared() const;
template<class T> LocalState shared(const vector<Stored<T>> &) const;
template<class T> LocalState shared(const Stored<T> & x) const { return shared({ x }); };
template<class T> LocalState shared(const Storage & st, const T & x)
{ return updateShared(T::sharedTypeId, x.store(st)); }
vector<Ref> sharedRefs() const;
LocalState sharedRefAdd(const Ref &) const;
private:
vector<Ref> lookupShared(UUID) const;
LocalState updateShared(UUID, const vector<Ref> &) const;
struct Priv;
std::shared_ptr<Priv> p;
};
template<class T>
optional<T> LocalState::shared() const
{
return T::load(lookupShared(T::sharedTypeId));
}
template<class T>
LocalState LocalState::shared(const vector<Stored<T>> & v) const
{
vector<Ref> refs;
for (const auto & x : v)
refs.push_back(x.ref());
return updateShared(T::sharedTypeId, refs);
}
}
|