att/
macros.rs

1macro_rules! packable_enum {
2    (
3        $(#[$attrs:meta])*
4        $vis:vis enum $name:ident : $ty:ty {
5            $(
6                $(#[$vattrs:meta])*
7                $vvis:vis $vname:ident $( = $vval:expr )?,
8            )*
9        }
10    ) => {
11        $(#[$attrs])*
12        $vis enum $name {
13            $(
14                $(#[$vattrs])*
15                $vvis $vname $( = $vval )?,
16            )*
17        }
18
19        impl $crate::packet::pack::Pack for $name {
20            fn pack<W>(self, write: &mut W) -> $crate::packet::pack::Result<()> where W: std::io::Write {
21                <$ty as $crate::packet::pack::Pack>::pack(self as $ty, write)
22            }
23        }
24
25        impl $crate::packet::pack::Unpack for $name {
26            fn unpack<R>(read: &mut R) -> $crate::packet::pack::Result<Self> where R: std::io::Read {
27                #![allow(non_upper_case_globals)]
28                $( const $vname: $ty = $name::$vname as $ty; )*
29                Ok(match <$ty as $crate::packet::pack::Unpack>::unpack(read)? {
30                    $( $vname => Self::$vname, )*
31                    unknown => return Err($crate::packet::pack::Error::Unexpected(format!("{:X?}", unknown))),
32                })
33            }
34        }
35    }
36}
37
38macro_rules! packable_newtype {
39    (
40        $(#[$attrs:meta])*
41        $vis:vis struct $name:ident ( $ty:ty );
42    ) => {
43        $(#[$attrs])*
44        $vis struct $name ( $ty );
45
46        impl $crate::packet::pack::Pack for $name {
47            fn pack<W>(self, write: &mut W) -> $crate::packet::pack::Result<()> where W: std::io::Write {
48                self.0.pack(write)
49            }
50        }
51
52        impl $crate::packet::pack::Unpack for $name {
53            fn unpack<R>(read: &mut R) -> $crate::packet::pack::Result<Self> where R: std::io::Read {
54                Ok(Self($crate::packet::pack::Unpack::unpack(read)?))
55            }
56        }
57    }
58}
59
60macro_rules! packable_struct {
61    (
62        $(#[$attrs:meta])*
63        $vis:vis struct $name:ident {
64            $(
65                $(#[$fattrs:meta])*
66                $fvis:vis $fname:ident : $fty:ty,
67            )*
68        }
69    ) => {
70        $(#[$attrs])*
71        pub struct $name {
72            $(
73                $(#[$fattrs])*
74                $fvis $fname : $fty,
75            )*
76        }
77
78        impl $crate::packet::pack::Pack for $name {
79            fn pack<W>(self, #[allow(unused_variables)]write: &mut W) -> $crate::packet::pack::Result<()> where W: std::io::Write {
80                $( self.$fname.pack(write)?; )*
81                Ok(())
82            }
83        }
84
85        impl $crate::packet::pack::Unpack for $name {
86            fn unpack<R>(#[allow(unused_variables)]read: &mut R) -> $crate::packet::pack::Result<Self> where R: std::io::Read {
87                Ok(Self {
88                    $( $fname : $crate::packet::pack::Unpack::unpack(read)?, )*
89                })
90            }
91        }
92    }
93}
att/macros.rs

att/
macros.rs
