noodles_bcf/record/
alternate_bases.rs

1use std::io;
2
3use noodles_vcf as vcf;
4
5/// BCF record alternate bases.
6#[derive(Clone, Debug, Eq, PartialEq)]
7pub struct AlternateBases<'a> {
8    src: &'a [u8],
9    len: usize,
10}
11
12impl<'a> AlternateBases<'a> {
13    pub(super) fn new(src: &'a [u8], len: usize) -> Self {
14        Self { src, len }
15    }
16}
17
18impl AsRef<[u8]> for AlternateBases<'_> {
19    fn as_ref(&self) -> &[u8] {
20        self.src
21    }
22}
23
24impl vcf::variant::record::AlternateBases for AlternateBases<'_> {
25    fn is_empty(&self) -> bool {
26        self.len == 0
27    }
28
29    fn len(&self) -> usize {
30        self.len
31    }
32
33    fn iter(&self) -> Box<dyn Iterator<Item = io::Result<&str>> + '_> {
34        use super::{value::read_value, Value};
35
36        let mut src = self.src;
37
38        Box::new((0..self.len()).map(move |_| match read_value(&mut src)? {
39            Some(Value::String(Some(value))) => Ok(value),
40            _ => Err(io::Error::new(
41                io::ErrorKind::InvalidData,
42                "invalid alt value",
43            )),
44        }))
45    }
46}
noodles_bcf/record/alternate_bases.rs

noodles_bcf/record/
alternate_bases.rs
