use std::convert::TryFrom; use crate::{object, Commit, DetachedObject, Object, Tree}; impl<'repo> From<Object<'repo>> for DetachedObject { fn from(mut v: Object<'repo>) -> Self { DetachedObject { id: v.id, kind: v.kind, data: std::mem::take(&mut v.data), } }} impl<'repo> From<Commit<'repo>> for DetachedObject { fn from(mut v: Commit<'repo>) -> Self { DetachedObject { id: v.id, kind: git_object::Kind::Commit, data: std::mem::take(&mut v.data), } }} impl<'repo> From<Commit<'repo>> for Object<'repo> { fn from(mut v: Commit<'repo>) -> Self { Object { id: v.id, kind: git_object::Kind::Commit, data: steal_from_freelist(&mut v.data), repo: v.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), } }} impl<'r> std::fmt::Debug for Object<'r> { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { use git_object::Kind::*; let type_name = match self.kind { Blob => "Blob", Commit => "Commit", Tree => "Tree", Tag => "Tag", }; write!(f, "{}({})", type_name, self.id) }} /// 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)}
use std::convert::TryFrom;
use crate::{object, Commit, DetachedObject, Object, Tree};
impl<'repo> From<Object<'repo>> for DetachedObject {
fn from(mut v: Object<'repo>) -> Self {
DetachedObject {
id: v.id,
kind: v.kind,
data: std::mem::take(&mut v.data),
}
}
}
impl<'repo> From<Commit<'repo>> for DetachedObject {
fn from(mut v: Commit<'repo>) -> Self {
DetachedObject {
id: v.id,
kind: git_object::Kind::Commit,
data: std::mem::take(&mut v.data),
}
}
}
impl<'repo> From<Commit<'repo>> for Object<'repo> {
fn from(mut v: Commit<'repo>) -> Self {
Object {
id: v.id,
kind: git_object::Kind::Commit,
data: steal_from_freelist(&mut v.data),
repo: v.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),
}
}
}
impl<'r> std::fmt::Debug for Object<'r> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
use git_object::Kind::*;
let type_name = match self.kind {
Blob => "Blob",
Commit => "Commit",
Tree => "Tree",
Tag => "Tag",
};
write!(f, "{}({})", type_name, self.id)
}
}
/// 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)
}