Struct Closure 

pub struct Closure {
    pub root: PathBuf,
    pub paths: BTreeSet<PathBuf>,
}

Typed closure of a store path — every transitive reference discovered by scanning the NAR contents for embedded /nix/store/<hash>-<name> paths. The closure is the deduplicated set; ordering is BTreeSet (lexicographic).

Fields

root: PathBuf

paths: BTreeSet<PathBuf>

Implementations

impl Closure

pub fn walk(root: &Path, store_root: &str) -> Result<Self, SpecError>

Walk the closure starting from root. Scans the NAR contents for embedded store paths matching /<store-root>/<hash>-<name>, follows each transitively. Stops at a max depth to prevent runaway.

Errors

• closure-bad-root if the start path isn’t a recognised store path.
• closure-encode on NAR failure.

pub fn len(&self) -> usize

Number of distinct paths in the closure (including root).

pub fn is_empty(&self) -> bool

true if the closure contains only the root.

Trait Implementations

impl Clone for Closure

fn clone(&self) -> Closure

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Closure

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Closure

impl PartialEq for Closure

fn eq(&self, other: &Closure) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Closure