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
|
// Protocol Buffers - Google's data interchange format
// Copyright 2023 Google LLC. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
//! Runtime-internal macros
/// Defines a `impl SettableValue<$proxied> for SomeType` body that forwards to
/// another implementation.
///
/// # Example
/// ```ignore
/// impl<'a, const N: usize> SettableValue<[u8]> for &'a [u8; N] {
/// // Use the `SettableValue<[u8]>` implementation for `&[u8]`:
/// impl_forwarding_settable_value!([u8], self => &self[..]);
/// }
/// ```
macro_rules! impl_forwarding_settable_value {
($proxied:ty, $self:ident => $self_forwarding_expr:expr) => {
fn set_on(
$self,
_private: $crate::__internal::Private,
mutator: $crate::Mut<'_, $proxied>,
) {
($self_forwarding_expr).set_on(Private, mutator)
}
fn set_on_absent(
$self,
_private: $crate::__internal::Private,
absent_mutator: <$proxied as $crate::ProxiedWithPresence>::AbsentMutData<'_>,
) -> <$proxied as $crate::ProxiedWithPresence>::PresentMutData<'_> {
($self_forwarding_expr).set_on_absent($crate::__internal::Private, absent_mutator)
}
fn set_on_present(
$self,
_private: $crate::__internal::Private,
present_mutator: <$proxied as $crate::ProxiedWithPresence>::PresentMutData<'_>,
) {
($self_forwarding_expr).set_on_present($crate::__internal::Private, present_mutator)
}
};
}
pub(crate) use impl_forwarding_settable_value;
|
