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#![rustfmt::skip]
/// @generated rust packets from test.
use bytes::{Buf, BufMut, Bytes, BytesMut};
use std::convert::{TryFrom, TryInto};
use std::cell::Cell;
use std::fmt;
use thiserror::Error;
type Result<T> = std::result::Result<T, Error>;
/// Private prevents users from creating arbitrary scalar values
/// in situations where the value needs to be validated.
/// Users can freely deref the value, but only the backend
/// may create it.
#[derive(Debug, Clone, Copy, Hash, PartialEq, Eq, PartialOrd, Ord)]
pub struct Private<T>(T);
impl<T> std::ops::Deref for Private<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
&self.0
}
}
#[derive(Debug, Error)]
pub enum Error {
#[error("Packet parsing failed")]
InvalidPacketError,
#[error("{field} was {value:x}, which is not known")]
ConstraintOutOfBounds { field: String, value: u64 },
#[error("Got {actual:x}, expected {expected:x}")]
InvalidFixedValue { expected: u64, actual: u64 },
#[error("when parsing {obj} needed length of {wanted} but got {got}")]
InvalidLengthError { obj: String, wanted: usize, got: usize },
#[error(
"array size ({array} bytes) is not a multiple of the element size ({element} bytes)"
)]
InvalidArraySize { array: usize, element: usize },
#[error("Due to size restrictions a struct could not be parsed.")]
ImpossibleStructError,
#[error("when parsing field {obj}.{field}, {value} is not a valid {type_} value")]
InvalidEnumValueError { obj: String, field: String, value: u64, type_: String },
#[error("expected child {expected}, got {actual}")]
InvalidChildError { expected: &'static str, actual: String },
}
pub trait Packet {
fn to_bytes(self) -> Bytes;
fn to_vec(self) -> Vec<u8>;
}
#[repr(u64)]
#[derive(Debug, Clone, Copy, Hash, Eq, PartialEq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
#[cfg_attr(feature = "serde", serde(try_from = "u32", into = "u32"))]
pub enum Foo {
A = 0x1,
B = 0x2,
}
impl TryFrom<u32> for Foo {
type Error = u32;
fn try_from(value: u32) -> std::result::Result<Self, Self::Error> {
match value {
0x1 => Ok(Foo::A),
0x2 => Ok(Foo::B),
_ => Err(value),
}
}
}
impl From<&Foo> for u32 {
fn from(value: &Foo) -> Self {
match value {
Foo::A => 0x1,
Foo::B => 0x2,
}
}
}
impl From<Foo> for u32 {
fn from(value: Foo) -> Self {
(&value).into()
}
}
impl From<Foo> for i32 {
fn from(value: Foo) -> Self {
u32::from(value) as Self
}
}
impl From<Foo> for i64 {
fn from(value: Foo) -> Self {
u32::from(value) as Self
}
}
impl From<Foo> for u64 {
fn from(value: Foo) -> Self {
u32::from(value) as Self
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct BarData {
x: Foo,
}
#[derive(Debug, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct Bar {
#[cfg_attr(feature = "serde", serde(flatten))]
bar: BarData,
}
#[derive(Debug)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct BarBuilder {
pub x: Foo,
}
impl BarData {
fn conforms(bytes: &[u8]) -> bool {
bytes.len() >= 3
}
fn parse(bytes: &[u8]) -> Result<Self> {
let mut cell = Cell::new(bytes);
let packet = Self::parse_inner(&mut cell)?;
Ok(packet)
}
fn parse_inner(mut bytes: &mut Cell<&[u8]>) -> Result<Self> {
if bytes.get().remaining() < 3 {
return Err(Error::InvalidLengthError {
obj: "Bar".to_string(),
wanted: 3,
got: bytes.get().remaining(),
});
}
let x = Foo::try_from(bytes.get_mut().get_uint_le(3) as u32)
.map_err(|unknown_val| Error::InvalidEnumValueError {
obj: "Bar".to_string(),
field: "x".to_string(),
value: unknown_val as u64,
type_: "Foo".to_string(),
})?;
Ok(Self { x })
}
fn write_to(&self, buffer: &mut BytesMut) {
buffer.put_uint_le(u32::from(self.x) as u64, 3);
}
fn get_total_size(&self) -> usize {
self.get_size()
}
fn get_size(&self) -> usize {
3
}
}
impl Packet for Bar {
fn to_bytes(self) -> Bytes {
let mut buffer = BytesMut::with_capacity(self.bar.get_size());
self.bar.write_to(&mut buffer);
buffer.freeze()
}
fn to_vec(self) -> Vec<u8> {
self.to_bytes().to_vec()
}
}
impl From<Bar> for Bytes {
fn from(packet: Bar) -> Self {
packet.to_bytes()
}
}
impl From<Bar> for Vec<u8> {
fn from(packet: Bar) -> Self {
packet.to_vec()
}
}
impl Bar {
pub fn parse(bytes: &[u8]) -> Result<Self> {
let mut cell = Cell::new(bytes);
let packet = Self::parse_inner(&mut cell)?;
Ok(packet)
}
fn parse_inner(mut bytes: &mut Cell<&[u8]>) -> Result<Self> {
let data = BarData::parse_inner(&mut bytes)?;
Self::new(data)
}
fn new(bar: BarData) -> Result<Self> {
Ok(Self { bar })
}
pub fn get_x(&self) -> Foo {
self.bar.x
}
fn write_to(&self, buffer: &mut BytesMut) {
self.bar.write_to(buffer)
}
pub fn get_size(&self) -> usize {
self.bar.get_size()
}
}
impl BarBuilder {
pub fn build(self) -> Bar {
let bar = BarData { x: self.x };
Bar::new(bar).unwrap()
}
}
impl From<BarBuilder> for Bar {
fn from(builder: BarBuilder) -> Bar {
builder.build().into()
}
}
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