Struct Fix 

pub struct Fix {
    pub start_byte: usize,
    pub end_byte: usize,
    pub replacement: String,
    pub description: String,
    pub safe: bool,
    pub confidence: Option<f32>,
    pub group: Option<String>,
    pub depends_on: Option<String>,
}

An automatic fix for a diagnostic

Fields

start_byte: usize

Byte offset start (inclusive)

end_byte: usize

Byte offset end (exclusive)

replacement: String

Text to insert/replace with

description: String

Human-readable description of what this fix does

safe: bool

Legacy safety flag retained for backwards compatibility. New code should prefer confidence, is_safe(), and confidence_tier().

confidence: Option<f32>

Confidence score (0.0 to 1.0).

• HIGH: >= 0.95
• MEDIUM: >= 0.75 and < 0.95
• LOW: < 0.75

When this is None (legacy serialized payloads), confidence is inferred from safe for compatibility.

group: Option<String>

Optional group key. Fixes in the same group are treated as alternatives.

depends_on: Option<String>

Optional dependency key (group or description) required before applying this fix.

Implementations

impl Fix

pub fn replace( start: usize, end: usize, replacement: impl Into<String>, description: impl Into<String>, safe: bool, ) -> Self

Create a replacement fix

pub fn replace_with_confidence( start: usize, end: usize, replacement: impl Into<String>, description: impl Into<String>, confidence: f32, ) -> Self

Create a replacement fix with explicit confidence.

pub fn insert( position: usize, text: impl Into<String>, description: impl Into<String>, safe: bool, ) -> Self

Create an insertion fix (start == end)

pub fn insert_with_confidence( position: usize, text: impl Into<String>, description: impl Into<String>, confidence: f32, ) -> Self

Create an insertion fix with explicit confidence.

pub fn delete( start: usize, end: usize, description: impl Into<String>, safe: bool, ) -> Self

Create a deletion fix (replacement is empty)

pub fn delete_with_confidence( start: usize, end: usize, description: impl Into<String>, confidence: f32, ) -> Self

Create a deletion fix with explicit confidence.

pub fn replace_checked( content: &str, start: usize, end: usize, replacement: impl Into<String>, description: impl Into<String>, safe: bool, ) -> Self

Create a replacement fix, asserting UTF-8 char boundary alignment in debug builds.

Validates that both start and end land on UTF-8 char boundaries in content. These checks are no-ops in release builds; the function otherwise behaves identically to its unchecked counterpart. Use Self::replace when content is not available.

pub fn replace_with_confidence_checked( content: &str, start: usize, end: usize, replacement: impl Into<String>, description: impl Into<String>, confidence: f32, ) -> Self

Create a replacement fix with explicit confidence, asserting UTF-8 char boundary alignment in debug builds.

Validates that both start and end land on UTF-8 char boundaries in content. These checks are no-ops in release builds; the function otherwise behaves identically to its unchecked counterpart. Use Self::replace_with_confidence when content is not available.

pub fn insert_checked( content: &str, position: usize, text: impl Into<String>, description: impl Into<String>, safe: bool, ) -> Self

Create an insertion fix, asserting UTF-8 char boundary alignment in debug builds.

Validates that position lands on a UTF-8 char boundary in content. These checks are no-ops in release builds; the function otherwise behaves identically to its unchecked counterpart. Use Self::insert when content is not available.

pub fn insert_with_confidence_checked( content: &str, position: usize, text: impl Into<String>, description: impl Into<String>, confidence: f32, ) -> Self

Create an insertion fix with explicit confidence, asserting UTF-8 char boundary alignment in debug builds.

Validates that position lands on a UTF-8 char boundary in content. These checks are no-ops in release builds; the function otherwise behaves identically to its unchecked counterpart. Use Self::insert_with_confidence when content is not available.

pub fn delete_checked( content: &str, start: usize, end: usize, description: impl Into<String>, safe: bool, ) -> Self

Create a deletion fix, asserting UTF-8 char boundary alignment in debug builds.

Validates that both start and end land on UTF-8 char boundaries in content. These checks are no-ops in release builds; the function otherwise behaves identically to its unchecked counterpart. Use Self::delete when content is not available.

pub fn delete_with_confidence_checked( content: &str, start: usize, end: usize, description: impl Into<String>, confidence: f32, ) -> Self

Create a deletion fix with explicit confidence, asserting UTF-8 char boundary alignment in debug builds.

Validates that both start and end land on UTF-8 char boundaries in content. These checks are no-ops in release builds; the function otherwise behaves identically to its unchecked counterpart. Use Self::delete_with_confidence when content is not available.

pub fn with_confidence(self, confidence: f32) -> Self

Override confidence for this fix and sync legacy safe.

pub fn with_group(self, group: impl Into<String>) -> Self

Mark this fix as part of an alternatives group.

pub fn with_dependency(self, depends_on: impl Into<String>) -> Self

Set a dependency key (group or description) that must be applied first.

pub fn confidence_score(&self) -> f32

Resolve confidence score with legacy fallback.

pub fn is_safe(&self) -> bool

Derived safety check based on confidence threshold.

pub fn confidence_tier(&self) -> FixConfidenceTier

Confidence tier used for certainty filtering.

pub fn is_insertion(&self) -> bool

Check if this is an insertion (start == end)

pub fn is_deletion(&self) -> bool

Check if this is a deletion (empty replacement)

Trait Implementations

impl Clone for Fix

fn clone(&self) -> Fix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Fix

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Fix

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Fix

fn eq(&self, other: &Self) -> 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 Serialize for Fix

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Fix