Enum FixSource 

pub enum FixSource {
    BuiltinRule,
    CorrectionsMap,
    MigrationTable,
    DecoderPosterior,
    DecoderClassificationHeuristic,
}

Provenance of a fix proposal — where the fix recommendation originated.

Variants

BuiltinRule

Hand-written Layer 2 CAPCO rule.

CorrectionsMap

User [corrections] entry (FR-009).

MigrationTable

Deterministic deprecated-marking conversion (FR-004a).

DecoderPosterior

Probabilistic decoder produced this fix from a recognition candidate’s posterior (Phase D, see docs/plans/2026-04-16-probabilistic-recognition.md). Paired with a non-trivial features list in FixProposal::confidence so auditors can reconstruct the scoring path.

DecoderClassificationHeuristic

Decoder produced this fix via a position-aware short-token classification heuristic — a keyboard-proximity table applied to the leading classification slot of a portion or banner marking when the token is too short for vocab-based fuzzy matching (e.g., (YS//NF) → (TS//NF), (W//NF) → (S//NF)). See issue #133 PR 2.

The heuristic is inherently less certain than a fuzzy-vocab match because the inference is “this token is keyboard- adjacent to a known classification” rather than “this token is edit-distance ≤ 2 from a known canonical token in a closed vocabulary.” The engine therefore (a) emits the diagnostic at Severity::Warn (the fix-and-warn pattern — always visible, non-zero exit code in --check), and (b) caps Confidence::rule at 0.80 so combined ≤ 0.80 stays below the default confidence_threshold of 0.95. The fix only auto-applies when the user has explicitly lowered the threshold to opt into the heuristic’s bar.

Trait Implementations

impl Clone for FixSource

fn clone(&self) -> FixSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FixSource

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

Formats the value using the given formatter.

impl Hash for FixSource

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FixSource

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for FixSource

impl Eq for FixSource

impl StructuralPartialEq for FixSource