Enum Claim 

pub enum Claim {
    Rule(RuleClaim),
    Ignored(IgnoredClaim),
    IgnoredFile(IgnoredFileClaim),
    WorkTree,
}

Why something is reclaimable, and what is known about it.

Three variants rather than two because a file is genuinely a third thing rather than a directory with a smaller number on it: it has no subtree, so prune-on-match does not apply to it, the size floor does not apply to it, and it is never unpriced. Spelled as a variant so that every consumer is made to say what it does about one — the enum being exhaustive is what found the places that had quietly assumed a claim was a directory.

Variants

Rule(RuleClaim)

Tier one: a marker-anchored rule recognised the project and named this directory as its output.

Ignored(IgnoredClaim)

Tier two: nothing in the ruleset knows this directory, but git does.

IgnoredFile(IgnoredFileClaim)

Tier two, on a leaf: a gitignored file.

WorkTree

A linked git work tree that has been left alone and holds nothing uncommitted.

Neither tier could ever have produced this. Tier one is marker-anchored and claims a directory’s children, and a work tree is not an artefact of a project — it is a place somebody was working. Tier two refuses anything holding a checkout, and rightly.

Trait Implementations

impl Clone for Claim

fn clone(&self) -> Claim

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Claim

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

Formats the value using the given formatter.