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Finally figured out how I want atoms to work

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This commit is contained in:
Lawrence Bethlenfalvy
2024-06-14 19:41:08 +02:00
parent b1ab483d92
commit 93867e40c6
42 changed files with 906 additions and 241 deletions
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87
orchid-api-traits/src/coding.rs
View File

@@ -6,6 +6,7 @@ use std::ops::{Range, RangeInclusive};
use std::rc::Rc;
use std::sync::Arc;
use never::Never;
use ordered_float::{FloatCore, NotNan};
use crate::encode_enum;
@@ -13,31 +14,35 @@ use crate::encode_enum;
pub trait Decode {
/// Decode an instance from the beginning of the buffer. Return the decoded
/// data and the remaining buffer.
fn decode<R: Read>(read: &mut R) -> Self;
fn decode<R: Read + ?Sized>(read: &mut R) -> Self;
}
pub trait Encode {
/// Append an instance of the struct to the buffer
fn encode<W: Write>(&self, write: &mut W);
fn encode<W: Write + ?Sized>(&self, write: &mut W);
fn enc_vec(&self) -> Vec<u8> {
let mut vec = Vec::new();
self.encode(&mut vec);
vec
}
}
pub trait Coding: Encode + Decode + Clone {}
pub trait Coding: Encode + Decode + Clone {
fn get_decoder<T>(map: impl Fn(Self) -> T + 'static) -> impl Fn(&mut dyn Read) -> T {
move |r| map(Self::decode(r))
}
}
impl<T: Encode + Decode + Clone> Coding for T {}
macro_rules! num_impl {
($number:ty, $size:expr) => {
impl Decode for $number {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
let mut bytes = [0u8; $size];
read.read_exact(&mut bytes).unwrap();
<$number>::from_be_bytes(bytes)
}
}
impl Encode for $number {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
write.write_all(&self.to_be_bytes()).expect("Could not write number")
}
}
@@ -62,10 +67,10 @@ num_impl!(f32, 4);
macro_rules! nonzero_impl {
($name:ty) => {
impl Decode for $name {
fn decode<R: Read>(read: &mut R) -> Self { Self::new(Decode::decode(read)).unwrap() }
fn decode<R: Read + ?Sized>(read: &mut R) -> Self { Self::new(Decode::decode(read)).unwrap() }
}
impl Encode for $name {
fn encode<W: Write>(&self, write: &mut W) { self.get().encode(write) }
fn encode<W: Write + ?Sized>(&self, write: &mut W) { self.get().encode(write) }
}
};
}
@@ -82,16 +87,18 @@ nonzero_impl!(std::num::NonZeroI64);
nonzero_impl!(std::num::NonZeroI128);
impl<'a, T: Encode + 'a> Encode for &'a T {
fn encode<W: Write>(&self, write: &mut W) { (**self).encode(write) }
fn encode<W: Write + ?Sized>(&self, write: &mut W) { (**self).encode(write) }
}
impl<T: Decode + FloatCore> Decode for NotNan<T> {
fn decode<R: Read>(read: &mut R) -> Self { NotNan::new(T::decode(read)).expect("Float was NaN") }
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
NotNan::new(T::decode(read)).expect("Float was NaN")
}
}
impl<T: Encode + FloatCore> Encode for NotNan<T> {
fn encode<W: Write>(&self, write: &mut W) { self.as_ref().encode(write) }
fn encode<W: Write + ?Sized>(&self, write: &mut W) { self.as_ref().encode(write) }
}
impl Decode for String {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
let len = u64::decode(read).try_into().unwrap();
let mut data = vec![0u8; len];
read.read_exact(&mut data).unwrap();
@@ -99,37 +106,37 @@ impl Decode for String {
}
}
impl Encode for String {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
u64::try_from(self.len()).unwrap().encode(write);
write.write_all(self.as_bytes()).unwrap()
}
}
impl Encode for str {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
u64::try_from(self.len()).unwrap().encode(write);
write.write_all(self.as_bytes()).unwrap()
}
}
impl<T: Decode> Decode for Vec<T> {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
let len = u64::decode(read).try_into().unwrap();
iter::repeat_with(|| T::decode(read)).take(len).collect()
}
}
impl<T: Encode> Encode for Vec<T> {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
u64::try_from(self.len()).unwrap().encode(write);
self.iter().for_each(|t| t.encode(write));
}
}
impl<T: Encode> Encode for [T] {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
u64::try_from(self.len()).unwrap().encode(write);
self.iter().for_each(|t| t.encode(write));
}
}
impl<T: Decode> Decode for Option<T> {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
match u8::decode(read) {
0 => None,
1 => Some(T::decode(read)),
@@ -138,14 +145,14 @@ impl<T: Decode> Decode for Option<T> {
}
}
impl<T: Encode> Encode for Option<T> {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
let t = if let Some(t) = self { t } else { return 0u8.encode(write) };
1u8.encode(write);
t.encode(write);
}
}
impl<T: Decode, E: Decode> Decode for Result<T, E> {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
match u8::decode(read) {
0 => Self::Ok(T::decode(read)),
1 => Self::Err(E::decode(read)),
@@ -155,7 +162,7 @@ impl<T: Decode, E: Decode> Decode for Result<T, E> {
}
impl<T: Encode, E: Encode> Encode for Result<T, E> {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
match self {
Ok(t) => encode_enum(write, 0, |w| t.encode(w)),
Err(e) => encode_enum(write, 1, |w| e.encode(w)),
@@ -163,13 +170,13 @@ impl<T: Encode, E: Encode> Encode for Result<T, E> {
}
}
impl<K: Decode + Eq + Hash, V: Decode> Decode for HashMap<K, V> {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
let len = u64::decode(read).try_into().unwrap();
iter::repeat_with(|| <(K, V)>::decode(read)).take(len).collect()
}
}
impl<K: Encode + Eq + Hash, V: Encode> Encode for HashMap<K, V> {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
u64::try_from(self.len()).unwrap().encode(write);
self.iter().for_each(|pair| pair.encode(write));
}
@@ -177,10 +184,10 @@ impl<K: Encode + Eq + Hash, V: Encode> Encode for HashMap<K, V> {
macro_rules! tuple {
(($($t:ident)*) ($($T:ident)*)) => {
impl<$($T: Decode),*> Decode for ($($T,)*) {
fn decode<R: Read>(read: &mut R) -> Self { ($($T::decode(read),)*) }
fn decode<R: Read + ?Sized>(read: &mut R) -> Self { ($($T::decode(read),)*) }
}
impl<$($T: Encode),*> Encode for ($($T,)*) {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
let ($($t,)*) = self;
$( $t.encode(write); )*
}
@@ -206,41 +213,49 @@ tuple!((t u v x y z a b c d e f g h i) (T U V X Y Z A B C D E F G H I));
tuple!((t u v x y z a b c d e f g h i j) (T U V X Y Z A B C D E F G H I J)); // 16
impl Decode for () {
fn decode<R: Read>(_: &mut R) -> Self {}
fn decode<R: Read + ?Sized>(_: &mut R) -> Self {}
}
impl Encode for () {
fn encode<W: Write>(&self, _: &mut W) {}
fn encode<W: Write + ?Sized>(&self, _: &mut W) {}
}
impl Decode for Never {
fn decode<R: Read + ?Sized>(_: &mut R) -> Self {
unreachable!("A value of Never cannot exist so it can't have been serialized");
}
}
impl Encode for Never {
fn encode<W: Write + ?Sized>(&self, _: &mut W) { match *self {} }
}
impl Decode for bool {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
let mut buf = [0];
read.read_exact(&mut buf).unwrap();
buf[0] != 0
}
}
impl Encode for bool {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
write.write_all(&[if *self { 0xff } else { 0 }]).unwrap()
}
}
impl<T: Decode, const N: usize> Decode for [T; N] {
fn decode<R: Read>(read: &mut R) -> Self {
fn decode<R: Read + ?Sized>(read: &mut R) -> Self {
// TODO: figure out how to do this in safe rust on the stack
((0..N).map(|_| T::decode(read)).collect::<Vec<_>>().try_into())
.unwrap_or_else(|_| unreachable!("The length of this iterator is statically known"))
}
}
impl<T: Encode, const N: usize> Encode for [T; N] {
fn encode<W: Write>(&self, write: &mut W) { self.iter().for_each(|t| t.encode(write)) }
fn encode<W: Write + ?Sized>(&self, write: &mut W) { self.iter().for_each(|t| t.encode(write)) }
}
macro_rules! two_end_range {
($this:ident, $name:tt, $op:tt, $start:expr, $end:expr) => {
impl<T: Decode> Decode for $name<T> {
fn decode<R: Read>(read: &mut R) -> Self { T::decode(read) $op T::decode(read) }
fn decode<R: Read + ?Sized>(read: &mut R) -> Self { T::decode(read) $op T::decode(read) }
}
impl<T: Encode> Encode for $name<T> {
fn encode<W: Write>(&self, write: &mut W) {
fn encode<W: Write + ?Sized>(&self, write: &mut W) {
let $this = self;
($start).encode(write);
($end).encode(write);
@@ -255,10 +270,10 @@ two_end_range!(x, RangeInclusive, ..=, x.start(), x.end());
macro_rules! smart_ptr {
($name:tt) => {
impl<T: Decode> Decode for $name<T> {
fn decode<R: Read>(read: &mut R) -> Self { $name::new(T::decode(read)) }
fn decode<R: Read + ?Sized>(read: &mut R) -> Self { $name::new(T::decode(read)) }
}
impl<T: Encode> Encode for $name<T> {
fn encode<W: Write>(&self, write: &mut W) { (**self).encode(write) }
fn encode<W: Write + ?Sized>(&self, write: &mut W) { (**self).encode(write) }
}
};
}
@@ -268,8 +283,8 @@ smart_ptr!(Rc);
smart_ptr!(Box);
impl Decode for char {
fn decode<R: Read>(read: &mut R) -> Self { char::from_u32(u32::decode(read)).unwrap() }
fn decode<R: Read + ?Sized>(read: &mut R) -> Self { char::from_u32(u32::decode(read)).unwrap() }
}
impl Encode for char {
fn encode<W: Write>(&self, write: &mut W) { (*self as u32).encode(write) }
fn encode<W: Write + ?Sized>(&self, write: &mut W) { (*self as u32).encode(write) }
}

6
orchid-api-traits/src/helpers.rs
View File

@@ -2,16 +2,16 @@ use std::io::{Read, Write};
use crate::Encode;
pub fn encode_enum<W: Write>(write: &mut W, id: u8, f: impl FnOnce(&mut W)) {
pub fn encode_enum<W: Write + ?Sized>(write: &mut W, id: u8, f: impl FnOnce(&mut W)) {
id.encode(write);
f(write)
}
pub fn write_exact(write: &mut impl Write, bytes: &'static [u8]) {
pub fn write_exact<W: Write + ?Sized>(write: &mut W, bytes: &'static [u8]) {
write.write_all(bytes).expect("Failed to write exact bytes")
}
pub fn read_exact(read: &mut impl Read, bytes: &'static [u8]) {
pub fn read_exact<R: Read + ?Sized>(read: &mut R, bytes: &'static [u8]) {
let mut data = vec![0u8; bytes.len()];
read.read_exact(&mut data).expect("Failed to read bytes");
assert_eq!(&data, bytes, "Wrong bytes")