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;
}

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.

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 NoCoreParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel

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

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

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel

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

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

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::CrateLevel

const CREATE: fn(Span) -> AttributeKind = {rustc_hir::attrs::AttributeKind::RustcCoherenceIsCore 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 RustcMainParser

const PATH: &'static [Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> 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 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}