Module analysis 

Coverage attribution: combine a head per-line report with a DiffModel (and optionally a baseline report) into the metrics a reviewer wants.

• Patch coverage — of the lines this diff added, how many are covered. Needs only the head report + diff; immune to line-shift because added lines exist only in head.
• Uncovered new lines — the explicit file:line list of added lines that are not covered (the actionable output).
• Project delta — per-file and total before/after coverage (baseline).
• Indirect changes — lines whose coverage flipped without their content changing, found by aligning base↔head through the diff (baseline).

Structs

AppliedMarker

One region that actually applied, for the visibility note.

CoverageDiff

The full attribution result.

FileDelta

Per-file project coverage delta (requires a baseline report).

FilePatch

Patch coverage for a single file.

IndirectChange

A line whose coverage status flipped without its content changing.

Markers

The source markers found on each side of the comparison.

PatchCoverage

Covered / uncovered tally over a set of lines.

Enums

DiffScope

Which files the project-delta and indirect-change sections report on.

MarkerSide

Which revision a reported region was observed on.

Functions

analyze

Runs the full attribution at the given DiffScope, with no source markers.

analyze_with_markers

Runs the full attribution, applying tolerate source markers.