esyn 0.9.1

De/Serialization Rust In Rust.
Documentation 
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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

use crate::{syn::*, *};

use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};

// Enum::Unnamed(...)
impl DeRs<Expr> for IpAddr {
    fn de(ast: &Expr) -> Res<Self> {
        let var = match ast {
            // Unnamed
            Expr::Call(ExprCall { func, .. }) => {
                let Expr::Path(ExprPath {
                    path: Path { segments, .. },
                    ..
                }) = func.as_ref()
                else {
                    unreachable!()
                };

                assert_eq!(segments.len(), 2);

                let PathSegment { ident, .. } = &segments[1];

                ident.to_string()
            }
            _ => unreachable!("{:#?}", ast),
        };

        // from tuple
        Ok(match var.as_str() {
            "V4" => {
                let Expr::Call(ExprCall { args: _, .. }) = ast else {
                    unreachable!()
                };

                let (a, b, c, d) = <(u8, u8, u8, u8) as DeRs<Expr>>::de(ast)?;

                Self::V4(Ipv4Addr::new(a, b, c, d))
            }

            "V6" => {
                let Expr::Call(ExprCall { args: _, .. }) = ast else {
                    unreachable!()
                };

                let (a, b, c, d, e, f, g, h) =
                    <(u16, u16, u16, u16, u16, u16, u16, u16) as DeRs<Expr>>::de(ast)?;

                Self::V6(Ipv6Addr::new(a, b, c, d, e, f, g, h))
            }

            _ => unreachable!(),
        })
    }
}

// from array
impl DeRs<Expr> for Ipv4Addr {
    fn de(ast: &Expr) -> Res<Self> {
        let [a, b, c, d] = <[u8; 4] as DeRs<Expr>>::de(ast)?;

        Ok(Self::new(a, b, c, d))
    }
}

// from array
impl DeRs<Expr> for Ipv6Addr {
    fn de(ast: &Expr) -> Res<Self> {
        let [a, b, c, d, e, f, g, h] = <[u16; 8] as DeRs<Expr>>::de(ast)?;

        Ok(Self::new(a, b, c, d, e, f, g, h))
    }
}

impl MutPath for IpAddr {
    fn mut_path(&mut self, _iter: &mut std::slice::Iter<&Ident>, _ast: &syn::Expr) -> Res<()> {
        unimplemented!()
    }
}

impl MutPath for Ipv4Addr {
    fn mut_path(&mut self, _iter: &mut std::slice::Iter<&Ident>, _ast: &syn::Expr) -> Res<()> {
        unimplemented!()
    }
}

impl MutPath for Ipv6Addr {
    fn mut_path(&mut self, _iter: &mut std::slice::Iter<&Ident>, _ast: &syn::Expr) -> Res<()> {
        unimplemented!()
    }
}

impl EsynDefault for IpAddr {
    fn esyn_default() -> Self {
        Self::V4(Ipv4Addr::esyn_default())
    }
}

impl EsynDefault for Ipv4Addr {
    fn esyn_default() -> Self {
        Self::new(0, 0, 0, 0)
    }
}

impl EsynDefault for Ipv6Addr {
    fn esyn_default() -> Self {
        Self::new(0, 0, 0, 0, 0, 0, 0, 0)
    }
}

impl EsynSer for IpAddr {
    fn ser(&self) -> TokenStream {
        match self {
            Self::V4(v) => {
                let iter = v.octets();

                quote! {
                    IpAddr::V4(
                        #(
                        #iter ,
                        )*
                    )
                }
            }
            Self::V6(v) => {
                let iter = v.segments();

                quote! {
                    IpAddr::V4(
                        #(
                        #iter ,
                        )*
                    )
                }
            }
        }
    }
}

impl EsynSer for Ipv4Addr {
    fn ser(&self) -> TokenStream {
        let v = self.octets();

        v.as_slice().ser()
    }
}

impl EsynSer for Ipv6Addr {
    fn ser(&self) -> TokenStream {
        let v = self.segments();

        v.as_slice().ser()
    }
}