git.bitcoin.ninja Git - rust-lightning/blob - src/util/ser_macros.rs

   1 macro_rules! impl_writeable {
   2         ($st:ident, $len: expr, {$($field:ident),*}) => {
   3                 impl<W: Writer> Writeable<W> for $st {
   4                         fn write(&self, w: &mut W) -> Result<(), DecodeError> {
   5                                 w.size_hint($len);
   6                                 $( self.$field.write(w)?; )*
   7                                 Ok(())
   8                         }
   9                 }
  10
  11                 impl<R: Read> Readable<R> for $st {
  12                         fn read(r: &mut R) -> Result<Self, DecodeError> {
  13                                 Ok(Self {
  14                                         $($field: Readable::read(r)?),*
  15                                 })
  16                         }
  17                 }
  18         }
  19 }
  20 macro_rules! impl_writeable_len_match {
  21         ($st:ident, {$({$m: pat, $l: expr}),*}, {$($field:ident),*}) => {
  22                 impl<W: Writer> Writeable<W> for $st {
  23                         fn write(&self, w: &mut W) -> Result<(), DecodeError> {
  24                                 w.size_hint(match *self {
  25                                         $($m => $l,)*
  26                                 });
  27                                 $( self.$field.write(w)?; )*
  28                                 Ok(())
  29                         }
  30                 }
  31
  32                 impl<R: Read> Readable<R> for $st {
  33                         fn read(r: &mut R) -> Result<Self, DecodeError> {
  34                                 Ok(Self {
  35                                         $($field: Readable::read(r)?),*
  36                                 })
  37                         }
  38                 }
  39         }
  40 }