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macro_rules! impl_consensus_encoding {
($thing:ident, $($field:ident),+) => (
impl<S: $crate::bitcoin::consensus::Encoder> $crate::bitcoin::consensus::Encodable<S> for $thing {
#[inline]
fn consensus_encode(&self, s: &mut S) -> Result<(), $crate::bitcoin::consensus::encode::Error> {
$( self.$field.consensus_encode(s)?; )+
Ok(())
}
}
impl<D: $crate::bitcoin::consensus::Decoder> $crate::bitcoin::consensus::Decodable<D> for $thing {
#[inline]
fn consensus_decode(d: &mut D) -> Result<$thing, $crate::bitcoin::consensus::encode::Error> {
use $crate::bitcoin::consensus::Decodable;
Ok($thing {
$( $field: Decodable::consensus_decode(d)?, )+
})
}
}
);
}
macro_rules! serde_struct_impl {
($name:ident, $($fe:ident),*) => (
#[cfg(feature = "serde")]
impl<'de> $crate::serde::Deserialize<'de> for $name {
fn deserialize<D>(deserializer: D) -> Result<$name, D::Error>
where
D: $crate::serde::de::Deserializer<'de>,
{
use $crate::std::fmt::{self, Formatter};
use $crate::serde::de::IgnoredAny;
#[allow(non_camel_case_types)]
enum Enum { Unknown__Field, $($fe),* }
struct EnumVisitor;
impl<'de> $crate::serde::de::Visitor<'de> for EnumVisitor {
type Value = Enum;
fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
formatter.write_str("a field name")
}
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: $crate::serde::de::Error,
{
match v {
$(
stringify!($fe) => Ok(Enum::$fe)
),*,
_ => Ok(Enum::Unknown__Field)
}
}
}
impl<'de> $crate::serde::Deserialize<'de> for Enum {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: ::serde::de::Deserializer<'de>,
{
deserializer.deserialize_str(EnumVisitor)
}
}
struct Visitor;
impl<'de> $crate::serde::de::Visitor<'de> for Visitor {
type Value = $name;
fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
formatter.write_str("a struct")
}
fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error>
where
A: $crate::serde::de::MapAccess<'de>,
{
use $crate::serde::de::Error;
$(let mut $fe = None;)*
loop {
match map.next_key::<Enum>()? {
Some(Enum::Unknown__Field) => {
map.next_value::<IgnoredAny>()?;
}
$(
Some(Enum::$fe) => {
$fe = Some(map.next_value()?);
}
)*
None => { break; }
}
}
$(
let $fe = match $fe {
Some(x) => x,
None => return Err(A::Error::missing_field(stringify!($fe))),
};
)*
let ret = $name {
$($fe: $fe),*
};
Ok(ret)
}
}
static FIELDS: &'static [&'static str] = &[$(stringify!($fe)),*];
deserializer.deserialize_struct(stringify!($name), FIELDS, Visitor)
}
}
#[cfg(feature = "serde")]
impl $crate::serde::Serialize for $name {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: $crate::serde::Serializer,
{
use $crate::serde::ser::SerializeStruct;
static FIELDS: &'static [&'static str] = &[$(stringify!($fe)),*];
let mut st = serializer.serialize_struct(stringify!($name), FIELDS.len())?;
$(
st.serialize_field(stringify!($fe), &self.$fe)?;
)*
st.end()
}
}
)
}
#[cfg(test)]
macro_rules! hex_deserialize(
($e:expr) => ({
use ::bitcoin::consensus::encode::deserialize;
fn hex_char(c: char) -> u8 {
match c {
'0' => 0,
'1' => 1,
'2' => 2,
'3' => 3,
'4' => 4,
'5' => 5,
'6' => 6,
'7' => 7,
'8' => 8,
'9' => 9,
'a' | 'A' => 10,
'b' | 'B' => 11,
'c' | 'C' => 12,
'd' | 'D' => 13,
'e' | 'E' => 14,
'f' | 'F' => 15,
x => panic!("Invalid character {} in hex string", x),
}
}
let mut ret = Vec::with_capacity($e.len() / 2);
let mut byte = 0;
for (ch, store) in $e.chars().zip([false, true].iter().cycle()) {
byte = (byte << 4) + hex_char(ch);
if *store {
ret.push(byte);
byte = 0;
}
}
deserialize(&ret).expect("deserialize object")
});
);