49 lines
947 B
Rust
49 lines
947 B
Rust
use core::marker::PhantomData;
|
|
|
|
use crate::{
|
|
config::{Config, Endian},
|
|
error::Error,
|
|
};
|
|
use read::Reader;
|
|
|
|
mod impls;
|
|
pub mod read;
|
|
|
|
|
|
|
|
pub trait Decodable: Sized {
|
|
fn decode<D: Decode>(decoder: D) -> Result<Self, Error>;
|
|
}
|
|
|
|
pub trait Decode {
|
|
fn decode_u32(&mut self) -> Result<u32, Error>;
|
|
}
|
|
|
|
pub struct Decoder<R, C: Config> {
|
|
reader: R,
|
|
config: PhantomData<C>,
|
|
}
|
|
|
|
impl<'de, R: Reader<'de>, C: Config> Decoder<R, C> {
|
|
pub fn new(reader: R) -> Decoder<R, C> {
|
|
Decoder {
|
|
reader,
|
|
config: PhantomData,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a, 'de, R: Reader<'de>, C: Config> Decode for &'a mut Decoder<R, C> {
|
|
fn decode_u32(&mut self) -> Result<u32, Error> {
|
|
let mut bytes = [0u8; 4];
|
|
|
|
self.reader.read(bytes.as_mut())?;
|
|
Ok(match C::ENDIAN {
|
|
Endian::Little => u32::from_le_bytes(bytes),
|
|
Endian::Big => u32::from_be_bytes(bytes),
|
|
})
|
|
}
|
|
}
|
|
|
|
|