use std::convert::TryFrom; use crate::object;use crate::{Commit, DetachedObject, Object, Tree}; impl<'repo> std::fmt::Debug for Object<'repo> {    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {        std::fmt::Debug::fmt(&self.id, f)    }} impl<'repo> From<Object<'repo>> for DetachedObject {    fn from(r: Object<'repo>) -> Self {        r.into_owned()    }} impl<'repo> From<Commit<'repo>> for Object<'repo> {    fn from(mut r: Commit<'repo>) -> Self {        Object {            id: r.id,            kind: git_object::Kind::Commit,            data: steal_from_freelist(&mut r.data),            repo: r.repo,        }    }} impl<'repo> AsRef<[u8]> for Object<'repo> {    fn as_ref(&self) -> &[u8] {        &self.data    }} impl AsRef<[u8]> for DetachedObject {    fn as_ref(&self) -> &[u8] {        &self.data    }} impl<'repo> TryFrom<Object<'repo>> for Commit<'repo> {    type Error = Object<'repo>;     fn try_from(mut value: Object<'repo>) -> Result<Self, Self::Error> {        let handle = value.repo;        match value.kind {            object::Kind::Commit => Ok(Commit {                id: value.id,                repo: handle,                data: steal_from_freelist(&mut value.data),            }),            _ => Err(value),        }    }} impl<'repo> TryFrom<Object<'repo>> for Tree<'repo> {    type Error = Object<'repo>;     fn try_from(mut value: Object<'repo>) -> Result<Self, Self::Error> {        let handle = value.repo;        match value.kind {            object::Kind::Tree => Ok(Tree {                id: value.id,                repo: handle,                data: steal_from_freelist(&mut value.data),            }),            _ => Err(value),        }    }} /// In conjunction with the handles free list, leaving an empty Vec in place of the original causes it to not be/// returned to the free list.fn steal_from_freelist(data: &mut Vec<u8>) -> Vec<u8> {    std::mem::take(data)}