Function git_index::extension::tree::decode

pub fn decode(data: &[u8], object_hash: Kind) -> Option<Tree>

A recursive data structure

Examples found in repository

src/extension/decode.rs (line 38)

pub fn all(maybe_beginning_of_extensions: &[u8], object_hash: git_hash::Kind) -> Result<(Outcome, &[u8]), Error> {
    let mut ext_iter = match extension::Iter::new_without_checksum(maybe_beginning_of_extensions, object_hash) {
        Some(iter) => iter,
        None => return Ok((Outcome::default(), maybe_beginning_of_extensions)),
    };

    let mut ext = Outcome::default();
    for (signature, ext_data) in ext_iter.by_ref() {
        match signature {
            extension::tree::SIGNATURE => {
                ext.tree = extension::tree::decode(ext_data, object_hash);
            }
            extension::resolve_undo::SIGNATURE => {
                ext.resolve_undo = extension::resolve_undo::decode(ext_data, object_hash);
            }
            extension::untracked_cache::SIGNATURE => {
                ext.untracked = extension::untracked_cache::decode(ext_data, object_hash);
            }
            extension::fs_monitor::SIGNATURE => {
                ext.fs_monitor = extension::fs_monitor::decode(ext_data);
            }
            extension::end_of_index_entry::SIGNATURE => {} // skip already done
            extension::index_entry_offset_table::SIGNATURE => {} // not relevant/obtained already
            mandatory if mandatory[0].is_ascii_lowercase() => match mandatory {
                extension::link::SIGNATURE => ext.link = extension::link::decode(ext_data, object_hash)?.into(),
                extension::sparse::SIGNATURE => {
                    if !ext_data.is_empty() {
                        // only used as a marker, if this changes we need this implementation.
                        return Err(Error::MandatoryUnimplemented { signature: mandatory });
                    }
                    ext.is_sparse = true
                }
                unknown => return Err(Error::MandatoryUnimplemented { signature: unknown }),
            },
            _unknown => {} // skip unknown extensions, too
        }
    }
    Ok((ext, &maybe_beginning_of_extensions[ext_iter.consumed..]))
}