//! Various functionality related to git references#![forbid(unsafe_code)]#![deny(rust_2018_idioms)]#![allow(missing_docs)]use bstr::BStr;use git_hash::oid; mod store;pub use store::*; /// Denotes the kind of function to produce a `Id`#[derive(PartialEq, Eq, Debug, Hash, Ord, PartialOrd, Clone, Copy)]#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]pub enum Kind {    /// A reference that points to an object id    Peeled,    /// A reference that points to another reference    Symbolic,} /// Denotes a ref target, equivalent to [`Kind`], but with data.#[derive(PartialEq, Eq, Debug, Hash, Ord, PartialOrd, Clone, Copy)]#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]pub enum Target<'a> {    /// A reference that points to an object id    Peeled(&'a oid),    /// A reference that points to another reference    Symbolic(&'a BStr),} impl<'a> Target<'a> {    pub fn kind(&self) -> Kind {        match self {            Target::Symbolic(_) => Kind::Symbolic,            Target::Peeled(_) => Kind::Peeled,        }    }    pub fn as_id(&self) -> Option<&oid> {        match self {            Target::Symbolic(_) => None,            Target::Peeled(oid) => Some(oid),        }    }    pub fn as_ref(&self) -> Option<&BStr> {        match self {            Target::Symbolic(path) => Some(path),            Target::Peeled(_) => None,        }    }}