trussed-core 0.2.0

Core types for the trussed crate
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

macro_rules! generate_enums {
    ($($(#[$attr:meta])? $which:ident: $index:literal)*) => {

    #[derive(Clone, Eq, PartialEq, Debug)]
    #[allow(clippy::large_enum_variant)]
    #[non_exhaustive]
    pub enum Request {
        DummyRequest, // for testing
        $(
        $(#[$attr])?
        $which(request::$which),
        )*
    }

    #[derive(Clone, Eq, PartialEq, Debug)]
    #[allow(clippy::large_enum_variant)]
    #[non_exhaustive]
    pub enum Reply {
        DummyReply, // for testing
        $(
        $(#[$attr])?
        $which(reply::$which),
        )*
    }

    const _: () = {
        // Compile failure if a request ID is reused
        fn _check_request_id_conflicts() {
            match 0u8 {
                0 => unreachable!(),
                $(
                    $index => unreachable!(),
                )*
                _ => todo!()
            }
        }
    };

    impl From<&Request> for u8 {
        fn from(request: &Request) -> u8 {
            match request {
                Request::DummyRequest => 0,
                $(
                $(#[$attr])?
                Request::$which(_) => $index,
                )*
            }
        }
    }

    impl From<&Reply> for u8 {
        fn from(reply: &Reply) -> u8 {
            match reply {
                Reply::DummyReply => 0,
                $(
                $(#[$attr])?
                Reply::$which(_) => $index,
                )*
            }
        }
    }

}}

macro_rules! impl_request {
    ($(
        $(#[$attr:meta])?
        $request:ident:
            $(- $name:tt: $type:path)*
    )*)
        => {$(
    $(#[$attr])?
    #[derive(Clone, Eq, PartialEq, Debug)]
    pub struct $request {
        $(
            pub $name: $type,
        )*
    }

    $(#[$attr])?
    impl From<$request> for Request {
        fn from(request: $request) -> Self {
            Self::$request(request)
        }
    }

    $(#[$attr])?
    impl core::convert::TryFrom<Request> for $request {
        type Error = crate::error::Error;
        fn try_from(request: Request) -> Result<request::$request, Self::Error> {
            match request {
                Request::$request(request) => Ok(request),
                _ => Err(Self::Error::InternalError),
            }
        }
    }

    $(#[$attr])?
    impl RequestVariant for $request {
        type Reply = reply::$request;
    }

    )*}
}

macro_rules! impl_reply {
    ($(
        $(#[$attr:meta])?
        $reply:ident:
            $(- $name:tt: $type:ty)*
    )*)
        => {$(

    $(#[$attr])?
    #[derive(Clone, Eq, PartialEq, Debug)]
    pub struct $reply {
        $(
            pub $name: $type,
        )*
    }

    $(#[$attr])?
    impl core::convert::TryFrom<Reply> for $reply {
        type Error = crate::error::Error;
        fn try_from(reply: Reply) -> Result<reply::$reply, Self::Error> {
            match reply {
                Reply::$reply(reply) => Ok(reply),
                _ => Err(Self::Error::InternalError),
            }
        }
    }

    $(#[$attr])?
    impl core::convert::From<$reply> for Reply {
        fn from(reply: $reply) -> Reply {
            Reply::$reply(reply)
        }
    }

    $(#[$attr])?
    impl ReplyVariant for $reply {
        type Request = request::$reply;
    }

    )*}
}