voxj-codec 0.1.1

Encodes voxj types into .voxj / .voxjz documents.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

/// Decodes an unsigned-LEB128 varint byte stream back into integers.
pub fn decode_varint(bytes: &[u8]) -> Vec<u64> {
    let mut out = Vec::new();
    let mut i = 0;
    while i < bytes.len() {
        let mut v = 0u64;
        let mut shift = 0;
        loop {
            let b = bytes[i];
            i += 1;
            v |= ((b & 0x7f) as u64) << shift;
            shift += 7;
            if b & 0x80 == 0 {
                break;
            }
        }
        out.push(v);
    }
    out
}

#[cfg(test)]
mod tests {
    use crate::{decode_varint, encode_varint};

    #[test]
    fn round_trips_multibyte() {
        let values = [0, 1, 127, 128, 300, 16384, 1_000_000, u32::MAX as u64];
        assert_eq!(decode_varint(&encode_varint(&values)), values);
    }
}