klv-uas 0.1.2

A simple library for parsing UAS KLV data from raw data.
Documentation 
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#[cfg(feature = "tracing")]
use tracing::debug;
#[cfg(feature = "tracing")]
use tracing::info;
#[cfg(feature = "tracing")]
use tracing::trace;

use crate::ErrorKind;
use crate::klv_value::KlvValue;
use crate::tag::Tag;

#[derive(Clone, Debug)]
pub struct Klv {
    tag: Tag,
    value: KlvValue,
}

impl Klv {
    pub fn new(tag_id: usize, raw_value: Box<[u8]>) -> Result<Klv, ErrorKind> {
        // Convert the tag ID into the tag variant it corresponds to
        let tag = Tag::from(tag_id);

        #[cfg(feature = "tracing")]
        debug!("Parsing value from tag [{:?}]", tag);

        // Return early if we know this tag is not supported
        if tag == Tag::Unknown || tag == Tag::Deprecated {
            return Err(ErrorKind::UnsupportedTag(tag_id));
        }

        let value = KlvValue::from_bytes(tag, &raw_value)?;

        Ok(Klv { tag, value })
    }

    pub fn tag(&self) -> Tag {
        self.tag
    }

    pub fn value(&self) -> &KlvValue {
        &self.value
    }
}