radn-rs/src/rstd/atomic.rs
2023-06-16 07:06:43 +00:00

49 lines
1.6 KiB
Rust

//! This module allows to describe a primitive subset of [Mentionable] types, [Atomic]s,
//! simple static types, which are completely [Context]-independent.
pub mod atomic_object;
pub mod au64;
pub mod boolean;
pub mod plain;
use std::marker::PhantomData;
use crate::rcore::*;
use super::*;
/// This trait combines functionality of [`Mentionable`] and [`Factory`],
/// while limiting [`Mentionable::points_typed`] (and corresponding [`Mentionable::topology`])
/// to an empty sequence.
pub trait Atomic: 'static + Send + Sync + Send + Clone + Serializable {
/// Equivalent of [`Factory::ParseError`].
type AParseError: Error;
/// Static equivalent of [`Factory::deserialize`].
fn a_deserialize(deserializer: &mut dyn Deserializer) -> Result<Self, Self::AParseError>;
/// Static equivalent of [`Factory::extend`].
fn a_extend(self, tail: &[u8]) -> Result<Self, Self::AParseError>;
}
fn _parse_slice<A: Atomic>(slice: &[u8]) -> Result<A, A::AParseError> {
let mut deserializer = SliceDeserializer::from(slice);
let atomic = A::a_deserialize(&mut deserializer)?;
let tail = deserializer.read_all();
if tail.is_empty() {
Ok(atomic)
} else {
A::a_extend(atomic, tail)
}
}
/// Extension trait to provide method-like utilities associated with [Atomic]s.
pub trait ExtAtomic: Atomic {
/// Static equivalent of [`ExtFactory::parse_slice`].
fn parse_slice(slice: &[u8]) -> Result<Self, Self::AParseError>;
}
impl<A: Atomic> ExtAtomic for A {
fn parse_slice(slice: &[u8]) -> Result<Self, Self::AParseError> {
_parse_slice(slice)
}
}