use bstr::BStr; use crate::{parse::Operation, Instruction}; impl Instruction<'_> {    /// Derive the mode of operation from this instruction.    pub fn operation(&self) -> Operation {        match self {            Instruction::Push(_) => Operation::Push,            Instruction::Fetch(_) => Operation::Fetch,        }    }} /// Note that all sources can either be a ref-name, partial or full, or a rev-spec, unless specified otherwise, on the local side./// Destinations can only be a partial or full ref names on the remote side.#[derive(PartialOrd, Ord, PartialEq, Eq, Copy, Clone, Hash, Debug)]pub enum Push<'a> {    /// Push all local branches to the matching destination on the remote, which has to exist to be updated.    AllMatchingBranches {        /// If true, allow non-fast-forward updates of the matched destination branch.        allow_non_fast_forward: bool,    },    /// Delete the destination ref or glob pattern, with only a single `*` allowed.    Delete {        /// The reference or pattern to delete on the remote.        ref_or_pattern: &'a BStr,    },    /// Push a single ref or refspec to a known destination ref.    Matching {        /// The source ref or refspec to push. If pattern, it contains a single `*`.        /// Examples are refnames like `HEAD` or `refs/heads/main`, or patterns like `refs/heads/*`.        src: &'a BStr,        /// The ref to update with the object from `src`. If `src`  is a pattern, this is a pattern too.        /// Examples are refnames like `HEAD` or `refs/heads/main`, or patterns like `refs/heads/*`.        dst: &'a BStr,        /// If true, allow non-fast-forward updates of `dest`.        allow_non_fast_forward: bool,    },} /// Any source can either be a ref name (full or partial) or a fully spelled out hex-sha for an object, on the remote side.////// Destinations can only be a partial or full ref-names on the local side.#[derive(PartialOrd, Ord, PartialEq, Eq, Copy, Clone, Hash, Debug)]pub enum Fetch<'a> {    /// Fetch a ref or refs, without updating local branches.    Only {        /// The partial or full ref name to fetch on the remote side or the full object hex-name, without updating the local side.        /// Note that this may not be a glob pattern, as those need to be matched by a destination which isn't present here.        src: &'a BStr,    },    /// Exclude a single ref.    Exclude {        /// A single partial or full ref name to exclude on the remote, or a pattern with a single `*`. It cannot be a spelled out object hash.        src: &'a BStr,    },    /// Fetch from `src` and update the corresponding destination branches in `dst` accordingly.    AndUpdate {        /// The ref name to fetch on the remote side, or a pattern with a single `*` to match against.        src: &'a BStr,        /// The local destination to update with what was fetched, or a pattern whose single `*` will be replaced with the matching portion        /// of the `*` from `src`.        dst: &'a BStr,        /// If true, allow non-fast-forward updates of `dest`.        allow_non_fast_forward: bool,    },}