rasn/types/
prefix.rs

1use crate::{AsnType, Tag};
2
3/// A newtype wrapper that will explicitly tag its value with `T`'s tag.
4#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
5pub struct Explicit<T, V> {
6    _tag: core::marker::PhantomData<T>,
7    /// The inner value.
8    pub value: V,
9}
10
11/// A newtype wrapper that will implicitly tag its value with `T`'s tag.
12#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
13pub struct Implicit<T, V> {
14    _tag: core::marker::PhantomData<T>,
15    /// The inner value.
16    pub value: V,
17}
18
19macro_rules! tag_kind {
20    ($($name:ident),+) => {
21        $(
22
23            impl<T, V> $name<T, V>{
24                /// Create a wrapper from `value`.
25                pub fn new(value: V) -> Self {
26                    Self {
27                        value,
28                        _tag: core::marker::PhantomData,
29                    }
30                }
31            }
32
33            impl<T, V> From<V> for $name<T, V> {
34                fn from(value: V) -> Self {
35                    Self::new(value)
36                }
37            }
38
39            impl<T, V> core::ops::Deref for $name<T, V> {
40                type Target = V;
41
42                fn deref(&self) -> &Self::Target {
43                    &self.value
44                }
45            }
46
47            impl<T, V> core::ops::DerefMut for $name<T, V> {
48                fn deref_mut(&mut self) -> &mut Self::Target {
49                    &mut self.value
50                }
51            }
52        )+
53    }
54}
55
56tag_kind!(Implicit, Explicit);
57
58impl<T: AsnType, V> AsnType for Implicit<T, V> {
59    const TAG: Tag = T::TAG;
60}
61
62impl<T: AsnType, V> AsnType for Explicit<T, V> {
63    const TAG: Tag = T::TAG;
64}