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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef DOM_QUOTA_MOZPROMISEUTILS_H_
#define DOM_QUOTA_MOZPROMISEUTILS_H_
#include "mozilla/MozPromise.h"
#include "nsThreadUtils.h"
namespace mozilla::dom::quota {
namespace detail {
template <typename T>
struct IsExclusiveMozPromise {
static constexpr bool value = false;
};
// Specialization for MozPromise
template <typename ResolveValueT, typename RejectValueT, bool IsExclusive>
struct IsExclusiveMozPromise<
MozPromise<ResolveValueT, RejectValueT, IsExclusive>> {
static constexpr bool value = IsExclusive;
};
} // namespace detail
template <typename T, typename U, typename F>
auto Map(RefPtr<U> aPromise, F&& aFunc) -> std::enable_if_t<
!detail::IsExclusiveMozPromise<RemoveSmartPointer<T>>::value &&
detail::IsExclusiveMozPromise<RemoveSmartPointer<U>>::value,
RefPtr<T>> {
return aPromise->Then(
GetCurrentSerialEventTarget(), __func__,
[func =
std::forward<F>(aFunc)](typename U::ResolveOrRejectValue&& aValue) {
if (aValue.IsReject()) {
return T::CreateAndReject(aValue.RejectValue(), __func__);
}
auto value = func(std::move(aValue));
return T::CreateAndResolve(value, __func__);
});
}
template <typename T, typename U, typename F>
auto Map(RefPtr<U> aPromise, F&& aFunc) -> std::enable_if_t<
!detail::IsExclusiveMozPromise<RemoveSmartPointer<T>>::value &&
!detail::IsExclusiveMozPromise<RemoveSmartPointer<U>>::value,
RefPtr<T>> {
return aPromise->Then(GetCurrentSerialEventTarget(), __func__,
[func = std::forward<F>(aFunc)](
const typename U::ResolveOrRejectValue& aValue) {
if (aValue.IsReject()) {
return T::CreateAndReject(aValue.RejectValue(),
__func__);
}
auto value = func(aValue);
return T::CreateAndResolve(value, __func__);
});
}
template <typename T, typename U, typename F>
auto Map(RefPtr<U> aPromise, F&& aFunc) -> std::enable_if_t<
detail::IsExclusiveMozPromise<RemoveSmartPointer<T>>::value &&
detail::IsExclusiveMozPromise<RemoveSmartPointer<U>>::value,
RefPtr<T>> {
return aPromise->Then(
GetCurrentSerialEventTarget(), __func__,
[func = std::forward<F>(aFunc)](
typename U::ResolveOrRejectValue&& aValue) mutable {
if (aValue.IsReject()) {
return T::CreateAndReject(aValue.RejectValue(), __func__);
}
auto value = func(std::move(aValue));
return T::CreateAndResolve(std::move(value), __func__);
});
}
template <typename T, typename U, typename F>
auto Map(RefPtr<U> aPromise, F&& aFunc) -> std::enable_if_t<
detail::IsExclusiveMozPromise<RemoveSmartPointer<T>>::value &&
!detail::IsExclusiveMozPromise<RemoveSmartPointer<U>>::value,
RefPtr<T>> {
return aPromise->Then(
GetCurrentSerialEventTarget(), __func__,
[func = std::forward<F>(aFunc)](
const typename U::ResolveOrRejectValue& aValue) mutable {
if (aValue.IsReject()) {
return T::CreateAndReject(aValue.RejectValue(), __func__);
}
auto value = func(aValue);
return T::CreateAndResolve(std::move(value), __func__);
});
}
} // namespace mozilla::dom::quota
#endif // DOM_QUOTA_MOZPROMISEUTILS_H_
|
