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 = AttributeKind::Cold

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

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 NoMangleParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::NoMangle

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

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcPassIndirectlyInNonRusticAbis

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

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> 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 = AttributeKind::TrackCaller

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

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 NoBuiltinsParser

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 NoCoreParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::NoCore

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

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 NoStdParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::NoStd

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

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 ProfilerRuntimeParser

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 RustcCoherenceIsCoreParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcCoherenceIsCore

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

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 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 = AttributeKind::FfiConst

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 = AttributeKind::FfiPure

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

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 StdInternalSymbolParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcStdInternalSymbol

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 = AttributeKind::RustcAsPtr

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 = AttributeKind::AutomaticallyDerived

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 = AttributeKind::RustcPassByValue

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 = AttributeKind::RustcPubTransparent

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

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcShouldNotBeCalledOnConstItems

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 = AttributeKind::ConstContinue

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 = AttributeKind::LoopMatch

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 = AttributeKind::MacroEscape

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 = AttributeKind::NoImplicitPrelude

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

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 NonExhaustiveParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::NonExhaustive

impl<S: Stage> NoArgsAttributeParser<S> for PinV2Parser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::PinV2

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 = AttributeKind::ProcMacroAttribute

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 = AttributeKind::ProcMacro

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

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 RustcAllocatorZeroedParser

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 RustcDeallocatorParser

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 RustcReallocatorParser

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 RustcDumpDefParents

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 RustcDumpItemBounds

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 RustcDumpPredicates

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 RustcDumpUserArgs

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 RustcDumpVtable

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcDumpVtable

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

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 RustcLintOptTyParser

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 RustcLintQueryInstabilityParser

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 RustcLintUntrackedQueryInformationParser

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 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 RustcNeverReturnsNullPointerParser

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 RustcNoImplicitAutorefsParser

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 RustcNonConstTraitMethodParser

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 RustcNounwindParser

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 RustcOffloadKernelParser

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 MayDangleParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(span: Span) -> AttributeKind = AttributeKind::MayDangle

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 RustcVarianceOfOpaquesParser

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 RustcVarianceParser

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 AllowIncoherentImplParser

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcAllowIncoherentImpl

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 = AttributeKind::RustcCoinductive

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 = AttributeKind::RustcDenyExplicitImpl

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

const PATH: &[Symbol]

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

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind = AttributeKind::RustcDynIncompatibleTrait

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 = AttributeKind::Marker

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 = AttributeKind::RustcParenSugar

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 = AttributeKind::Pointee

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 = AttributeKind::RustcSpecializationTrait

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 = AttributeKind::TypeConst

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 = AttributeKind::RustcUnsafeSpecializationMarker