gix_ref::file

Trait ReferenceExt

source 
pub trait ReferenceExt: Sealed {
    // Required methods
    fn log_iter<'a, 's>(&'a self, store: &'s Store) -> Platform<'a, 's>;
    fn log_exists(&self, store: &Store) -> bool;
    fn peel_to_id_in_place(
        &mut self,
        store: &Store,
        objects: &dyn Find,
    ) -> Result<ObjectId, Error>;
    fn peel_to_id_in_place_packed(
        &mut self,
        store: &Store,
        objects: &dyn Find,
        packed: Option<&Buffer>,
    ) -> Result<ObjectId, Error>;
    fn follow_to_object_in_place_packed(
        &mut self,
        store: &Store,
        packed: Option<&Buffer>,
    ) -> Result<ObjectId, Error>;
    fn follow(&self, store: &Store) -> Option<Result<Reference, Error>>;
    fn follow_packed(
        &self,
        store: &Store,
        packed: Option<&Buffer>,
    ) -> Option<Result<Reference, Error>>;
}
Expand description

A trait to extend Reference with functionality requiring a file::Store.

Required Methods§

source

fn log_iter<'a, 's>(&'a self, store: &'s Store) -> Platform<'a, 's>

A step towards obtaining forward or reverse iterators on reference logs.

source

fn log_exists(&self, store: &Store) -> bool

For details, see Reference::log_exists().

source

fn peel_to_id_in_place( &mut self, store: &Store, objects: &dyn Find, ) -> Result<ObjectId, Error>

Follow all symbolic targets this reference might point to and peel the underlying object to the end of the tag-chain, returning the first non-tag object the annotated tag points to, using objects to access them and store to lookup symbolic references.

This is useful to learn where this reference is ultimately pointing to after following all symbolic refs and all annotated tags to the first non-tag object.

source

fn peel_to_id_in_place_packed( &mut self, store: &Store, objects: &dyn Find, packed: Option<&Buffer>, ) -> Result<ObjectId, Error>

Like ReferenceExt::peel_to_id_in_place(), but with support for a known stable packed buffer to use for resolving symbolic links.

source

fn follow_to_object_in_place_packed( &mut self, store: &Store, packed: Option<&Buffer>, ) -> Result<ObjectId, Error>

Like ReferenceExt::follow(), but follows all symbolic references while gracefully handling loops, altering this instance in place.

source

fn follow(&self, store: &Store) -> Option<Result<Reference, Error>>

Follow this symbolic reference one level and return the ref it refers to.

Returns None if this is not a symbolic reference, hence the leaf of the chain.

source

fn follow_packed( &self, store: &Store, packed: Option<&Buffer>, ) -> Option<Result<Reference, Error>>

Follow this symbolic reference one level and return the ref it refers to, possibly providing access to packed references for lookup if it contains the referent.

Returns None if this is not a symbolic reference, hence the leaf of the chain.

Implementors§