Struct ContractViolation 

pub struct ContractViolation {
    pub rule: &'static str,
    pub field: Option<String>,
    pub message: String,
    pub page_index: usize,
}

Available on crate feature contract only.

One observed contract breach.

Fields

rule: &'static str

Stable rule label (closed set, safe as a metric label): not_object, missing, null, type, enum, pattern, range, length, extra_field.

field: Option<String>

Breaching field name; None for whole-record rules (not_object).

message: String

Human-readable breach message (goes into errors / DLQ envelopes).

page_index: usize

0-based position within the original page — the DLQ envelope’s record_index contract (position within the page that failed).

Implementations

impl ContractViolation

pub fn describe(&self) -> String

One-line human description: field 'x': <message> (<rule>).

Trait Implementations

impl Clone for ContractViolation

fn clone(&self) -> ContractViolation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContractViolation

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

Formats the value using the given formatter.