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macro_rules! read_fn {
($name:ident, $type:ident, $num:expr) => (
read_fn!($name, $type, $num, stringify!($type), stringify!($num));
);
($name:ident, $type:ident, $num:expr,
$type_str:expr, $num_str:expr) => {
#[inline]
#[doc = "Reads "]
#[doc = $num_str]
#[doc = " bytes converting them into an `"]
#[doc = $type_str]
#[doc = "`."]
fn $name(&mut self) -> $type {
let mut bytes = [0u8; $num];
bytes.copy_from_slice(self.read($num));
$type::from_be_bytes(bytes)
}
}
}
pub trait BytesRead {
fn as_slice(&self) -> &[u8];
#[inline]
fn len(&self) -> usize {
self.as_slice().len()
}
fn remaining(&self) -> &[u8];
fn read(&mut self, len: usize) -> &[u8];
read_fn!(read_u8, u8, 1);
read_fn!(read_u16, u16, 2);
read_fn!(read_u32, u32, 4);
read_fn!(read_u64, u64, 8);
read_fn!(read_u128, u128, 16);
read_fn!(read_i8, i8, 1);
read_fn!(read_i16, i16, 2);
read_fn!(read_i32, i32, 4);
read_fn!(read_i64, i64, 8);
read_fn!(read_i128, i128, 16);
read_fn!(read_f32, f32, 4);
read_fn!(read_f64, f64, 8);
fn peek(&self, len: usize) -> Option<&[u8]>;
}