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pub use byteorder::{BigEndian, LittleEndian};
pub mod de;
#[doc(inline)]
pub use crate::de::Deserializer;
mod encapsulation;
pub use crate::encapsulation::{CdrBe, CdrLe, Encapsulation, PlCdrBe, PlCdrLe};
mod error;
pub use crate::error::{Error, Result};
pub mod ser;
#[doc(inline)]
pub use crate::ser::Serializer;
pub mod size;
#[doc(inline)]
pub use crate::size::{Bounded, Infinite, SizeLimit};
use std::io::{Read, Write};
pub fn calc_serialized_size<T: ?Sized>(value: &T) -> u64
where
T: serde::Serialize,
{
size::calc_serialized_data_size(value) + encapsulation::ENCAPSULATION_HEADER_SIZE
}
pub fn calc_serialized_size_bounded<T: ?Sized>(value: &T, max: u64) -> Result<u64>
where
T: serde::Serialize,
{
use crate::encapsulation::ENCAPSULATION_HEADER_SIZE;
if max < ENCAPSULATION_HEADER_SIZE {
Err(Error::SizeLimit)
} else {
size::calc_serialized_data_size_bounded(value, max)
.map(|size| size + ENCAPSULATION_HEADER_SIZE)
}
}
pub fn serialize<T: ?Sized, S, C>(value: &T, size_limit: S) -> Result<Vec<u8>>
where
T: serde::Serialize,
S: SizeLimit,
C: Encapsulation,
{
let mut writer = match size_limit.limit() {
Some(limit) => {
let actual_size = calc_serialized_size_bounded(value, limit)?;
Vec::with_capacity(actual_size as usize)
}
None => {
let size = calc_serialized_size(value) as usize;
Vec::with_capacity(size)
}
};
serialize_into::<_, _, _, C>(&mut writer, value, Infinite)?;
Ok(writer)
}
pub fn serialize_into<W, T: ?Sized, S, C>(writer: W, value: &T, size_limit: S) -> Result<()>
where
W: Write,
T: serde::ser::Serialize,
S: SizeLimit,
C: Encapsulation,
{
if let Some(limit) = size_limit.limit() {
calc_serialized_size_bounded(value, limit)?;
}
let mut serializer = Serializer::<_, C::E>::new(writer);
serde::Serialize::serialize(&C::id(), &mut serializer)?;
serde::Serialize::serialize(&C::option(), &mut serializer)?;
serializer.reset_pos();
serde::Serialize::serialize(value, &mut serializer)
}
pub fn deserialize<'de, T>(bytes: &[u8]) -> Result<T>
where
T: serde::Deserialize<'de>,
{
deserialize_from::<_, _, _>(bytes, Infinite)
}
pub fn deserialize_from<'de, R, T, S>(reader: R, size_limit: S) -> Result<T>
where
R: Read,
T: serde::Deserialize<'de>,
S: SizeLimit,
{
use crate::encapsulation::ENCAPSULATION_HEADER_SIZE;
let mut deserializer = Deserializer::<_, S, BigEndian>::new(reader, size_limit);
let v: [u8; ENCAPSULATION_HEADER_SIZE as usize] =
serde::Deserialize::deserialize(&mut deserializer)?;
deserializer.reset_pos();
match v[1] {
0 | 2 => serde::Deserialize::deserialize(&mut deserializer),
1 | 3 => serde::Deserialize::deserialize(
&mut Into::<Deserializer<_, _, LittleEndian>>::into(deserializer),
),
_ => Err(Error::InvalidEncapsulation),
}
}