use std::convert::TryFrom; use crate::{object, Blob, Commit, Object, ObjectDetached, Tag, Tree}; impl<'repo> From> for ObjectDetached { fn from(mut v: Object<'repo>) -> Self { ObjectDetached { id: v.id, kind: v.kind, data: steal_from_freelist(&mut v.data), } } } impl<'repo> From> for ObjectDetached { fn from(mut v: Commit<'repo>) -> Self { ObjectDetached { id: v.id, kind: gix_object::Kind::Commit, data: steal_from_freelist(&mut v.data), } } } impl<'repo> From> for ObjectDetached { fn from(mut v: Tag<'repo>) -> Self { ObjectDetached { id: v.id, kind: gix_object::Kind::Tag, data: steal_from_freelist(&mut v.data), } } } impl<'repo> From> for ObjectDetached { fn from(mut v: Blob<'repo>) -> Self { ObjectDetached { id: v.id, kind: gix_object::Kind::Blob, data: steal_from_freelist(&mut v.data), } } } impl<'repo> From> for ObjectDetached { fn from(mut v: Tree<'repo>) -> Self { ObjectDetached { id: v.id, kind: gix_object::Kind::Tree, data: steal_from_freelist(&mut v.data), } } } impl<'repo> From> for Object<'repo> { fn from(mut v: Commit<'repo>) -> Self { Object { id: v.id, kind: gix_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 ObjectDetached { fn as_ref(&self) -> &[u8] { &self.data } } impl<'repo> TryFrom> for Commit<'repo> { type Error = Object<'repo>; fn try_from(mut value: Object<'repo>) -> Result { let repo = value.repo; match value.kind { object::Kind::Commit => Ok(Commit { id: value.id, repo, data: steal_from_freelist(&mut value.data), }), _ => Err(value), } } } impl<'repo> TryFrom> for Tag<'repo> { type Error = Object<'repo>; fn try_from(mut value: Object<'repo>) -> Result { let repo = value.repo; match value.kind { object::Kind::Tag => Ok(Tag { id: value.id, repo, data: steal_from_freelist(&mut value.data), }), _ => Err(value), } } } impl<'repo> TryFrom> for Tree<'repo> { type Error = Object<'repo>; fn try_from(mut value: Object<'repo>) -> Result { let repo = value.repo; match value.kind { object::Kind::Tree => Ok(Tree { id: value.id, repo, data: steal_from_freelist(&mut value.data), }), _ => Err(value), } } } impl<'repo> TryFrom> for Blob<'repo> { type Error = Object<'repo>; fn try_from(mut value: Object<'repo>) -> Result { let repo = value.repo; match value.kind { object::Kind::Blob => Ok(Blob { id: value.id, repo, 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 gix_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) -> Vec { std::mem::take(data) }