StabilityParser

rustc_attr_parsing::attributes::stability

Struct StabilityParser 

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pub(crate) struct StabilityParser {
    allowed_through_unstable_modules: Option<Symbol>,
    stability: Option<(Stability, Span)>,
}

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§allowed_through_unstable_modules: Option<Symbol>§stability: Option<(Stability, Span)>

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impl StabilityParser

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fn check_duplicate<S: Stage>(&self, cx: &AcceptContext<'_, '_, S>) -> bool

Checks, and emits an error when a stability (or unstability) was already set, which would be a duplicate.

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impl<S: Stage> AttributeParser<S> for StabilityParser

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const ATTRIBUTES: &'static [(&'static [Symbol], AttributeTemplate, for<'sess> fn(&mut Self, &mut AcceptContext<'_, 'sess, S>, &ArgParser<'_>))]

The symbols for the attributes that this parser is interested in. Read more
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const ALLOWED_TARGETS: AllowedTargets = ALLOWED_TARGETS

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fn finalize(self, cx: &FinalizeContext<'_, '_, S>) -> Option<AttributeKind>

The parser has gotten a chance to accept the attributes on an item, here it can produce an attribute. Read more
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impl Default for StabilityParser

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fn default() -> StabilityParser

Returns the “default value” for a type. Read more

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impl<T> Aligned for T

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const ALIGN: Alignment

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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where U: From<T>,

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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type Output = T

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type Error = Infallible

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Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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fn vzip(self) -> V

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impl<T> ErasedDestructor for T
where T: 'static,

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 36 bytes