Trait NoArgsAttributeParser 

pub(crate) trait NoArgsAttributeParser<S: Stage>: 'static {
    const PATH: &[Symbol];
    const ON_DUPLICATE: OnDuplicate<S>;
    const ALLOWED_TARGETS: AllowedTargets;
    const CREATE: fn(Span) -> AttributeKind;
    const TYPE: AttributeType = AttributeType::Normal;
}

An even simpler version of SingleAttributeParser: now automatically check that there are no arguments provided to the attribute.

WithoutArgs<T> where T: NoArgsAttributeParser implements SingleAttributeParser.

Required Associated Constants

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S>

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

Create the AttributeKind given attribute’s Span.

Provided Associated Constants

const TYPE: AttributeType = AttributeType::Normal

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<S: Stage> NoArgsAttributeParser<S> for CoroutineParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl<S: Stage> NoArgsAttributeParser<S> for ColdParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::Cold as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for NoMangleParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::NoMangle as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for TrackCallerParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::TrackCaller as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for ExportStableParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl<S: Stage> NoArgsAttributeParser<S> for FfiConstParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::FfiConst as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for FfiPureParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::FfiPure as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for StdInternalSymbolParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::StdInternalSymbol as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for AsPtrParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::AsPtr as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for AutomaticallyDerivedParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::AutomaticallyDerived as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for PassByValueParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::PassByValue as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for PubTransparentParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::PubTransparent as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for ConstContinueParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::ConstContinue as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for LoopMatchParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::LoopMatch as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for AllowInternalUnsafeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Ignore

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl<S: Stage> NoArgsAttributeParser<S> for MacroEscapeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets = MACRO_USE_ALLOWED_TARGETS

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::MacroEscape as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for NoImplicitPreludeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::NoImplicitPrelude as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for NonExhaustiveParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::NonExhaustive as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for ProcMacroAttributeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets = PROC_MACRO_ALLOWED_TARGETS

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::ProcMacroAttribute as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for ProcMacroParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets = PROC_MACRO_ALLOWED_TARGETS

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::ProcMacro as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for MayDangleParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(span: Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::MayDangle as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for ConstStabilityIndirectParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Ignore

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl<S: Stage> NoArgsAttributeParser<S> for AllowIncoherentImplParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::AllowIncoherentImpl as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for CoherenceIsCoreParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const TYPE: AttributeType = AttributeType::CrateLevel

const CREATE: fn(Span) -> AttributeKind

impl<S: Stage> NoArgsAttributeParser<S> for CoinductiveParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::Coinductive as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for ConstTraitParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::ConstTrait as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for DenyExplicitImplParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::DenyExplicitImpl as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for DoNotImplementViaObjectParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::DoNotImplementViaObject as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for FundamentalParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl<S: Stage> NoArgsAttributeParser<S> for MarkerParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::Marker as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for ParenSugarParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::ParenSugar as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for PointeeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::Pointee as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for SpecializationTraitParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::SpecializationTrait as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for TypeConstParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::TypeConst as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}

impl<S: Stage> NoArgsAttributeParser<S> for UnsafeSpecializationMarkerParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::UnsafeSpecializationMarker as fn(rustc_span::Span) -> rustc_hir::attrs::AttributeKind}