Struct AttributeUsage 

pub struct AttributeUsage {
    pub name: &'static str,
    pub description: Option<&'static str>,
    pub source: Option<AttributeUsageSource>,
}

Describes a concrete usage of an attribute in source code.

Fields

name: &'static str

Contextual name for this usage (may differ across codebases).

description: Option<&'static str>

Optional human-facing description for this usage.

source: Option<AttributeUsageSource>

Optional source location to disambiguate multiple usages.

Implementations

impl AttributeUsage

pub const fn named(name: &'static str) -> Self

Construct a minimal usage entry with a name.

pub const fn description(self, description: &'static str) -> Self

Set a human-facing description for this usage.

pub const fn source(self, source: AttributeUsageSource) -> Self

Set a source location for this usage.

Trait Implementations

impl Clone for AttributeUsage

fn clone(&self) -> AttributeUsage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AttributeUsage

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

Formats the value using the given formatter.

impl Hash for AttributeUsage

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 AttributeUsage

fn eq(&self, other: &AttributeUsage) -> 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 AttributeUsage

impl Eq for AttributeUsage

impl StructuralPartialEq for AttributeUsage