const_serialize/
const_buffers.rs

1/// A buffer that can be read from at compile time. This is very similar to [Cursor](std::io::Cursor) but is
2/// designed to be used in const contexts.
3#[derive(Debug, Clone, Copy, PartialEq)]
4pub struct ConstReadBuffer<'a> {
5    location: usize,
6    memory: &'a [u8],
7}
8
9impl<'a> ConstReadBuffer<'a> {
10    /// Create a new buffer from a byte slice
11    pub const fn new(memory: &'a [u8]) -> Self {
12        Self {
13            location: 0,
14            memory,
15        }
16    }
17
18    /// Get the next byte from the buffer. Returns `None` if the buffer is empty.
19    /// This will return the new version of the buffer with the first byte removed.
20    pub const fn get(mut self) -> Option<(Self, u8)> {
21        if self.location >= self.memory.len() {
22            return None;
23        }
24        let value = self.memory[self.location];
25        self.location += 1;
26        Some((self, value))
27    }
28
29    /// Get a reference to the underlying byte slice
30    pub const fn as_ref(&self) -> &[u8] {
31        self.memory
32    }
33}
const_serialize/const_buffers.rs

const_serialize/
const_buffers.rs
