Trait NoArgsAttributeParser 

pub(crate) trait NoArgsAttributeParser: 'static {
    const PATH: &[Symbol];
    const ALLOWED_TARGETS: AllowedTargets;
    const CREATE: fn(Span) -> AttributeKind;
    const ON_DUPLICATE: OnDuplicate = OnDuplicate::Error;
    const SAFETY: AttributeSafety = AttributeSafety::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 ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

Create the AttributeKind given attribute’s Span.

Provided Associated Constants

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Error

const SAFETY: AttributeSafety = AttributeSafety::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 NoArgsAttributeParser for CoroutineParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for ColdParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for NoMangleParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const SAFETY: AttributeSafety

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcEiiForeignItemParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcPassIndirectlyInNonRusticAbisParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for ThreadLocalParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for TrackCallerParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for DefaultLibAllocatorParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for NeedsPanicRuntimeParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for NoBuiltinsParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for NoCoreParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for NoMainParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for NoStdParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for PanicRuntimeParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for ProfilerRuntimeParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcCoherenceIsCoreParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcNoImplicitBoundsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcPreserveUbChecksParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for CompilerBuiltinsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for ExportStableParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for FfiConstParser

const PATH: &[Symbol]

const SAFETY: AttributeSafety

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for FfiPureParser

const PATH: &[Symbol]

const SAFETY: AttributeSafety

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for NeedsAllocatorParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcStdInternalSymbolParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for AutomaticallyDerivedParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcAsPtrParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcPassByValueParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcPubTransparentParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcShouldNotBeCalledOnConstItemsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for ConstContinueParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for LoopMatchParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for AllowInternalUnsafeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Ignore

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for MacroEscapeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets = MACRO_USE_ALLOWED_TARGETS

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

impl NoArgsAttributeParser for RustcProcMacroDeclsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for NoImplicitPreludeParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for NoLinkParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for NonExhaustiveParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for PinV2Parser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for ProcMacroAttributeParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets = PROC_MACRO_ALLOWED_TARGETS

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

impl NoArgsAttributeParser for ProcMacroParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets = PROC_MACRO_ALLOWED_TARGETS

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

impl NoArgsAttributeParser for RustcAllocatorParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcAllocatorZeroedParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDeallocatorParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcReallocatorParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpDefParentsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpHiddenTypeOfOpaquesParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpInferredOutlivesParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpItemBoundsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpObjectLifetimeDefaultsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpPredicatesParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpUserArgsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpVariancesOfOpaquesParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpVariancesParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDumpVtableParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for PanicHandlerParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for PreludeImportParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcCaptureAnalysisParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcConversionSuggestionParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDoNotConstCheckParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcEffectiveVisibilityParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcExhaustiveParser

const PATH: &'static [Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcHasIncoherentInherentImplsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcInheritOverflowChecksParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcInsignificantDtorParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcIntrinsicConstStableIndirectParser

const PATH: &'static [Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcIntrinsicParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcLintOptTyParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcLintQueryInstabilityParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcLintUntrackedQueryInformationParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcMainParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcNeverReturnsNullPtrParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcNoImplicitAutorefsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcNoMirInlineParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcNoWritableParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Error

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcNonConstTraitMethodParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcNonnullOptimizationGuaranteedParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcNounwindParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcOffloadKernelParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcRegionsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcStrictCoherenceParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcTrivialFieldReadsParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for MayDangleParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcConstStableIndirectParser

const PATH: &[Symbol]

const ON_DUPLICATE: OnDuplicate = OnDuplicate::Ignore

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcDelayedBugFromInsideQueryParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for RustcEvaluateWhereClausesParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for FundamentalParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

const CREATE: fn(Span) -> AttributeKind

impl NoArgsAttributeParser for MarkerParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcAllowIncoherentImplParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcCoinductiveParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcDenyExplicitImplParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcDynIncompatibleTraitParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcParenSugarParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcSpecializationTraitParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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

impl NoArgsAttributeParser for RustcUnsafeSpecializationMarkerParser

const PATH: &[Symbol]

const ALLOWED_TARGETS: AllowedTargets

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