Struct Lint

pub struct Lint {
    pub name: &'static str,
    pub default_level: Level,
    pub desc: &'static str,
    pub edition_lint_opts: Option<(Edition, Level)>,
    pub report_in_external_macro: bool,
    pub future_incompatible: Option<FutureIncompatibleInfo>,
    pub is_externally_loaded: bool,
    pub feature_gate: Option<Symbol>,
    pub crate_level_only: bool,
    pub eval_always: bool,
}

Specification of a single lint.

Fields

name: &'static str

A string identifier for the lint.

This identifies the lint in attributes and in command-line arguments. In those contexts it is always lowercase, but this field is compared in a way which is case-insensitive for ASCII characters. This allows declare_lint!() invocations to follow the convention of upper-case statics without repeating the name.

The name is written with underscores, e.g., “unused_imports”. On the command line, underscores become dashes.

See https://rustc-dev-guide.rust-lang.org/diagnostics.html#lint-naming for naming guidelines.

default_level: Level

Default level for the lint.

See https://rustc-dev-guide.rust-lang.org/diagnostics.html#diagnostic-levels for guidelines on choosing a default level.

desc: &'static str

Description of the lint or the issue it detects.

e.g., “imports that are never used”

edition_lint_opts: Option<(Edition, Level)>

Starting at the given edition, default to the given lint level. If this is None, then use default_level.

report_in_external_macro: bool

true if this lint is reported even inside expansions of external macros.

future_incompatible: Option<FutureIncompatibleInfo>

is_externally_loaded: bool

true if this lint is being loaded by another tool (e.g. Clippy).

feature_gate: Option<Symbol>

Some if this lint is feature gated, otherwise None.

crate_level_only: bool

eval_always: bool

true if this lint should not be filtered out under any circustamces (e.g. the unknown_attributes lint)

Implementations

impl Lint

pub const fn default_fields_for_macro() -> Lint

pub fn name_lower(&self) -> String

Gets the lint’s name, with ASCII letters converted to lowercase.

pub fn default_level(&self, edition: Edition) -> Level

Trait Implementations

impl Clone for Lint

fn clone(&self) -> Lint

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Lint

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

Formats the value using the given formatter.

impl Copy for Lint

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 136 bytes