Struct Rule 

pub struct Rule {
    pub id: String,
    pub pattern: String,
    pub severity: Severity,
    pub message: Option<Template>,
    pub callback: Option<CallbackRef>,
    pub parser: Option<CallbackRef>,
    pub fix: Option<Template>,
    pub tests: Vec<RuleTest>,
    /* private fields */
}

One validated lint rule.

Fields

id: String

The rule’s unique id — what shows up as the diagnostic’s code, and what suppressions (a future feature) will name. Unique across all global rules and every scope’s rules.

pattern: String

The pattern, as written in the config. Empty when the rule uses a parser instead.

severity: Severity

How serious a hit is (default: Severity::Warning).

message: Option<Template>

The message template, parsed and capture-validated. Optional when the rule has a callback (then it doubles as the message for callbacks that return “violate with the default message”).

callback: Option<CallbackRef>

The rule’s callback reference, if any.

parser: Option<CallbackRef>

The rule’s parser reference, if any — mutually exclusive with Rule::pattern.

fix: Option<Template>

The fix template, if any: replaces each match, with captures interpolated like messages. Surfaces as a quickfix in editors and as declint check --fix.

tests: Vec<RuleTest>

Embedded fixtures, run by declint test. Unused by the lint engine itself.

Trait Implementations

impl Clone for Rule

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rule

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

Formats the value using the given formatter.