Struct CloneCouplingRow 

pub struct CloneCouplingRow {

    pub clone_group_id: u32,
    pub fingerprint: String,
    pub file_a: String,
    pub file_b: String,
    pub entity_a: String,
    pub entity_b: String,
    pub start_line_a: u32,
    pub end_line_a: u32,
    pub start_line_b: u32,
    pub end_line_b: u32,
    pub node_count: u32,
    pub similarity: f64,
    pub shared_revs: u32,
    pub support_a: u32,
    pub support_b: u32,
    pub degree_pct: f64,
    pub p_value: f64,
    pub combined_score: f64,
    pub at_risk: bool,
}

One clone-coupling finding. A pair of files from the same clone family that also co-change at Fisher-significant rates. Sorted by combined_score desc so PR-review tooling surfaces the most actionable findings first.

Fields

clone_group_id: u32

clone_group_id shared by file_a and file_b.

fingerprint: String

AST structural digest (hex) of the shared clone fingerprint.

file_a: String

file_b: String

entity_a: String

Function name in file_a (may be empty for closures / anonymous fns).

entity_b: String

start_line_a: u32

end_line_a: u32

start_line_b: u32

end_line_b: u32

node_count: u32

Number of AST nodes in each member’s fingerprint (shared by both — they’re in the same clone family).

similarity: f64

1.0 for T1+T2 exact matches; < 1.0 for Type-3 near-miss.

shared_revs: u32

Commits where both files co-changed.

support_a: u32

Total commits touching file_a.

support_b: u32

Total commits touching file_b.

degree_pct: f64

shared_revs / max(support_a, support_b) ∈ [0, 1].

p_value: f64

Fisher exact test p-value. Lower = more confident.

combined_score: f64

similarity × degree_pct × (1 − p_value) ∈ [0, 1]. Ranks the row; SARIF security-severity is derived from this × 10.

at_risk: bool

T9: true when either file_a or file_b is currently a knowledge-island file (departed primary author + no substantial other owners). Live clones AT-RISK files are the most actionable debt findings: the clone is already a refactoring liability and the people who could refactor it have already left.

Computed by intersecting clone-coupling output with the knowledge-islands analysis result set. Honors the same --departed-threshold-days and --age-time-now flags as the standalone analysis. No knowledge-islands data → all rows have at_risk = false (graceful degradation when the repo has no departed contributors).

Trait Implementations

impl Clone for CloneCouplingRow

fn clone(&self) -> CloneCouplingRow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CloneCouplingRow

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

Formats the value using the given formatter.

impl Serialize for CloneCouplingRow

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

where __S: Serializer,

Serialize this value into the given Serde serializer.