Enum RetentionReason 

pub enum RetentionReason {
    ReachableFromBranch,
    MatchedPredicate(usize),
    ParentOfRetained,
}

Why an op survived a GC plan. Serialized as JSON in the lex op gc --dry-run envelope so reviewers can see the reasoning per op.

Variants

ReachableFromBranch

Reachable via DAG walk from at least one branch head.

MatchedPredicate(usize)

Matched at least one policy.gc_retention.retain predicate (the index is into that list, not into the merged input — CLI overrides land before policy entries).

ParentOfRetained

Ancestor of an op retained by one of the above rules. Closure rule preserving DAG integrity.

Trait Implementations

impl Clone for RetentionReason

fn clone(&self) -> RetentionReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetentionReason

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RetentionReason

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for RetentionReason

impl PartialEq for RetentionReason

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for RetentionReason

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RetentionReason