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use crate::{Blob, Commit, Object, Tag, Tree};
mod convert;
mod write {
use std::io;
use crate::{Kind, Object, ObjectRef, WriteTo};
impl<'a> WriteTo for ObjectRef<'a> {
fn write_to(&self, out: impl io::Write) -> io::Result<()> {
use crate::ObjectRef::*;
match self {
Tree(v) => v.write_to(out),
Blob(v) => v.write_to(out),
Commit(v) => v.write_to(out),
Tag(v) => v.write_to(out),
}
}
fn size(&self) -> usize {
use crate::ObjectRef::*;
match self {
Tree(v) => v.size(),
Blob(v) => v.size(),
Commit(v) => v.size(),
Tag(v) => v.size(),
}
}
fn kind(&self) -> Kind {
self.kind()
}
}
impl WriteTo for Object {
fn write_to(&self, out: impl io::Write) -> io::Result<()> {
use crate::Object::*;
match self {
Tree(v) => v.write_to(out),
Blob(v) => v.write_to(out),
Commit(v) => v.write_to(out),
Tag(v) => v.write_to(out),
}
}
fn size(&self) -> usize {
use crate::Object::*;
match self {
Tree(v) => v.size(),
Blob(v) => v.size(),
Commit(v) => v.size(),
Tag(v) => v.size(),
}
}
fn kind(&self) -> Kind {
self.kind()
}
}
}
impl Object {
pub fn into_blob(self) -> Blob {
match self {
Object::Blob(v) => v,
_ => panic!("BUG: not a blob"),
}
}
pub fn into_commit(self) -> Commit {
match self {
Object::Commit(v) => v,
_ => panic!("BUG: not a commit"),
}
}
pub fn into_tree(self) -> Tree {
match self {
Object::Tree(v) => v,
_ => panic!("BUG: not a tree"),
}
}
pub fn into_tag(self) -> Tag {
match self {
Object::Tag(v) => v,
_ => panic!("BUG: not a tag"),
}
}
#[allow(clippy::result_large_err)]
pub fn try_into_blob(self) -> Result<Blob, Self> {
match self {
Object::Blob(v) => Ok(v),
_ => Err(self),
}
}
pub fn try_into_blob_ref(&self) -> Option<BlobRef<'_>> {
match self {
Object::Blob(v) => Some(v.to_ref()),
_ => None,
}
}
#[allow(clippy::result_large_err)]
pub fn try_into_commit(self) -> Result<Commit, Self> {
match self {
Object::Commit(v) => Ok(v),
_ => Err(self),
}
}
#[allow(clippy::result_large_err)]
pub fn try_into_tree(self) -> Result<Tree, Self> {
match self {
Object::Tree(v) => Ok(v),
_ => Err(self),
}
}
#[allow(clippy::result_large_err)]
pub fn try_into_tag(self) -> Result<Tag, Self> {
match self {
Object::Tag(v) => Ok(v),
_ => Err(self),
}
}
pub fn as_blob(&self) -> Option<&Blob> {
match self {
Object::Blob(v) => Some(v),
_ => None,
}
}
pub fn as_commit(&self) -> Option<&Commit> {
match self {
Object::Commit(v) => Some(v),
_ => None,
}
}
pub fn as_tree(&self) -> Option<&Tree> {
match self {
Object::Tree(v) => Some(v),
_ => None,
}
}
pub fn as_tag(&self) -> Option<&Tag> {
match self {
Object::Tag(v) => Some(v),
_ => None,
}
}
pub fn kind(&self) -> crate::Kind {
match self {
Object::Tree(_) => crate::Kind::Tree,
Object::Blob(_) => crate::Kind::Blob,
Object::Commit(_) => crate::Kind::Commit,
Object::Tag(_) => crate::Kind::Tag,
}
}
}
use crate::{
decode::{loose_header, Error as DecodeError, LooseHeaderDecodeError},
BlobRef, CommitRef, Kind, ObjectRef, TagRef, TreeRef,
};
#[derive(Debug, thiserror::Error)]
#[allow(missing_docs)]
pub enum LooseDecodeError {
#[error(transparent)]
InvalidHeader(#[from] LooseHeaderDecodeError),
#[error(transparent)]
InvalidContent(#[from] DecodeError),
}
impl<'a> ObjectRef<'a> {
pub fn from_loose(data: &'a [u8]) -> Result<ObjectRef<'a>, LooseDecodeError> {
let (kind, size, offset) = loose_header(data)?;
let body = &data[offset..]
.get(..size)
.ok_or(LooseHeaderDecodeError::InvalidHeader {
message: "object data was shorter than its size declared in the header",
})?;
Ok(Self::from_bytes(kind, body)?)
}
pub fn from_bytes(kind: Kind, data: &'a [u8]) -> Result<ObjectRef<'a>, crate::decode::Error> {
Ok(match kind {
Kind::Tree => ObjectRef::Tree(TreeRef::from_bytes(data)?),
Kind::Blob => ObjectRef::Blob(BlobRef { data }),
Kind::Commit => ObjectRef::Commit(CommitRef::from_bytes(data)?),
Kind::Tag => ObjectRef::Tag(TagRef::from_bytes(data)?),
})
}
pub fn into_owned(self) -> Object {
self.into()
}
pub fn to_owned(&self) -> Object {
self.clone().into()
}
}
impl<'a> ObjectRef<'a> {
pub fn as_blob(&self) -> Option<&BlobRef<'a>> {
match self {
ObjectRef::Blob(v) => Some(v),
_ => None,
}
}
pub fn into_blob(self) -> Option<BlobRef<'a>> {
match self {
ObjectRef::Blob(v) => Some(v),
_ => None,
}
}
pub fn as_commit(&self) -> Option<&CommitRef<'a>> {
match self {
ObjectRef::Commit(v) => Some(v),
_ => None,
}
}
pub fn into_commit(self) -> Option<CommitRef<'a>> {
match self {
ObjectRef::Commit(v) => Some(v),
_ => None,
}
}
pub fn as_tree(&self) -> Option<&TreeRef<'a>> {
match self {
ObjectRef::Tree(v) => Some(v),
_ => None,
}
}
pub fn into_tree(self) -> Option<TreeRef<'a>> {
match self {
ObjectRef::Tree(v) => Some(v),
_ => None,
}
}
pub fn as_tag(&self) -> Option<&TagRef<'a>> {
match self {
ObjectRef::Tag(v) => Some(v),
_ => None,
}
}
pub fn into_tag(self) -> Option<TagRef<'a>> {
match self {
ObjectRef::Tag(v) => Some(v),
_ => None,
}
}
pub fn kind(&self) -> Kind {
match self {
ObjectRef::Tree(_) => Kind::Tree,
ObjectRef::Blob(_) => Kind::Blob,
ObjectRef::Commit(_) => Kind::Commit,
ObjectRef::Tag(_) => Kind::Tag,
}
}
}