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Refactor tuple serialization into a macro
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@jkczyz
jkczyz committed Nov 4, 2024
1 parent 117c11c commit 665a622
Showing 1 changed file with 28 additions and 109 deletions.
137 changes: 28 additions & 109 deletions lightning/src/util/ser.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1398,119 +1398,38 @@ impl<T: Writeable> Writeable for RwLock<T> {
}
}

impl<A: Readable, B: Readable> Readable for (A, B) {
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
let a: A = Readable::read(r)?;
let b: B = Readable::read(r)?;
Ok((a, b))
}
}
impl<A: Writeable, B: Writeable> Writeable for (A, B) {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
self.0.write(w)?;
self.1.write(w)
}
}

impl<A: Readable, B: Readable, C: Readable> Readable for (A, B, C) {
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
let a: A = Readable::read(r)?;
let b: B = Readable::read(r)?;
let c: C = Readable::read(r)?;
Ok((a, b, c))
}
}
impl<A: Writeable, B: Writeable, C: Writeable> Writeable for (A, B, C) {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
self.0.write(w)?;
self.1.write(w)?;
self.2.write(w)
}
}

impl<A: Readable, B: Readable, C: Readable, D: Readable> Readable for (A, B, C, D) {
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
let a: A = Readable::read(r)?;
let b: B = Readable::read(r)?;
let c: C = Readable::read(r)?;
let d: D = Readable::read(r)?;
Ok((a, b, c, d))
}
}
impl<A: Writeable, B: Writeable, C: Writeable, D: Writeable> Writeable for (A, B, C, D) {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
self.0.write(w)?;
self.1.write(w)?;
self.2.write(w)?;
self.3.write(w)
}
}

impl<A: Readable, B: Readable, C: Readable, D: Readable, E: Readable> Readable for (A, B, C, D, E) {
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
let a: A = Readable::read(r)?;
let b: B = Readable::read(r)?;
let c: C = Readable::read(r)?;
let d: D = Readable::read(r)?;
let e: E = Readable::read(r)?;
Ok((a, b, c, d, e))
}
}
impl<A: Writeable, B: Writeable, C: Writeable, D: Writeable, E: Writeable> Writeable for (A, B, C, D, E) {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
self.0.write(w)?;
self.1.write(w)?;
self.2.write(w)?;
self.3.write(w)?;
self.4.write(w)
}
}
macro_rules! impl_tuple_ser {
($($i: ident : $type: tt),*) => {
impl<$($type),*> Readable for ($($type),*)
where $(
$type: Readable,
)*
{
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
Ok(($(<$type as Readable>::read(r)?),*))
}
}

impl<A: Readable, B: Readable, C: Readable, D: Readable, E: Readable, F: Readable> Readable for (A, B, C, D, E, F) {
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
let a: A = Readable::read(r)?;
let b: B = Readable::read(r)?;
let c: C = Readable::read(r)?;
let d: D = Readable::read(r)?;
let e: E = Readable::read(r)?;
let f: F = Readable::read(r)?;
Ok((a, b, c, d, e, f))
}
}
impl<A: Writeable, B: Writeable, C: Writeable, D: Writeable, E: Writeable, F: Writeable> Writeable for (A, B, C, D, E, F) {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
self.0.write(w)?;
self.1.write(w)?;
self.2.write(w)?;
self.3.write(w)?;
self.4.write(w)?;
self.5.write(w)
impl<$($type),*> Writeable for ($($type),*)
where $(
$type: Writeable,
)*
{
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
let ($($i),*) = self;
$($i.write(w)?;)*
Ok(())
}
}
}
}

impl<A: Readable, B: Readable, C: Readable, D: Readable, E: Readable, F: Readable, G: Readable> Readable for (A, B, C, D, E, F, G) {
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
let a: A = Readable::read(r)?;
let b: B = Readable::read(r)?;
let c: C = Readable::read(r)?;
let d: D = Readable::read(r)?;
let e: E = Readable::read(r)?;
let f: F = Readable::read(r)?;
let g: G = Readable::read(r)?;
Ok((a, b, c, d, e, f, g))
}
}
impl<A: Writeable, B: Writeable, C: Writeable, D: Writeable, E: Writeable, F: Writeable, G: Writeable> Writeable for (A, B, C, D, E, F, G) {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
self.0.write(w)?;
self.1.write(w)?;
self.2.write(w)?;
self.3.write(w)?;
self.4.write(w)?;
self.5.write(w)?;
self.6.write(w)
}
}
impl_tuple_ser!(a: A, b: B);
impl_tuple_ser!(a: A, b: B, c: C);
impl_tuple_ser!(a: A, b: B, c: C, d: D);
impl_tuple_ser!(a: A, b: B, c: C, d: D, e: E);
impl_tuple_ser!(a: A, b: B, c: C, d: D, e: E, f: F);
impl_tuple_ser!(a: A, b: B, c: C, d: D, e: E, f: F, g: G);

impl Writeable for () {
fn write<W: Writer>(&self, _: &mut W) -> Result<(), io::Error> {
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