Enum rustc_hir::def::NonMacroAttrKind

source ·

pub enum NonMacroAttrKind {
    Builtin(Symbol),
    Tool,
    DeriveHelper,
    DeriveHelperCompat,
}

Expand description

An attribute that is not a macro; e.g., #[inline] or #[rustfmt::skip].

Variants

`Builtin(Symbol)`

Single-segment attribute defined by the language (#[inline])

`Tool`

Multi-segment custom attribute living in a “tool module” (#[rustfmt::skip]).

`DeriveHelper`

Single-segment custom attribute registered by a derive macro (#[serde(default)]).

`DeriveHelperCompat`

Single-segment custom attribute registered by a derive macro but used before that derive macro was expanded (deprecated).

Implementations

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pub fn is_used(self) -> bool

Users of some attributes cannot mark them as used, so they are considered always used.

Trait Implementations

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impl Clone for NonMacroAttrKind

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fn clone(&self) -> NonMacroAttrKind

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for NonMacroAttrKind

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<D: Decoder> Decodable<D> for NonMacroAttrKind

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fn decode(decoder: &mut D) -> Self

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impl<E: Encoder> Encodable<E> for NonMacroAttrKind

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fn encode(&self, encoder: &mut E)

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impl Hash for NonMacroAttrKind

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H)where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

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impl<CTX> HashStable<CTX> for NonMacroAttrKindwhere
__CTX: HashStableContext,

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fn hash_stable(&self, hcx: &mut CTX, __hasher: &mut StableHasher)

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impl PartialEq<NonMacroAttrKind> for NonMacroAttrKind

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fn eq(&self, other: &NonMacroAttrKind) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

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impl Copy for NonMacroAttrKind

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impl StructuralEq for NonMacroAttrKind

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impl StructuralPartialEq for NonMacroAttrKind

Auto Trait Implementations

impl RefUnwindSafe for NonMacroAttrKind

impl Send for NonMacroAttrKind

impl Sync for NonMacroAttrKind

impl Unpin for NonMacroAttrKind

impl UnwindSafe for NonMacroAttrKind

Blanket Implementations

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,

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fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Layout

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: 4 bytes

Size for each variant:

Builtin: 4 bytes
Tool: 0 bytes
DeriveHelper: 0 bytes
DeriveHelperCompat: 0 bytes

Enum rustc_hir::def::NonMacroAttrKind

Variants

Builtin(Symbol)

Tool

DeriveHelper

DeriveHelperCompat

Implementations

impl NonMacroAttrKind

pub fn descr(self) -> &'static str

pub fn article(self) -> &'static str

pub fn is_used(self) -> bool

Trait Implementations

impl Clone for NonMacroAttrKind

fn clone(&self) -> NonMacroAttrKind

fn clone_from(&mut self, source: &Self)

impl Debug for NonMacroAttrKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<__D: Decoder> Decodable<__D> for NonMacroAttrKind

fn decode(__decoder: &mut __D) -> Self

impl<__E: Encoder> Encodable<__E> for NonMacroAttrKind

fn encode(&self, __encoder: &mut __E)

impl Hash for NonMacroAttrKind

fn hash<__H: Hasher>(&self, state: &mut __H)

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher,

impl<__CTX> HashStable<__CTX> for NonMacroAttrKindwhere __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq<NonMacroAttrKind> for NonMacroAttrKind

fn eq(&self, other: &NonMacroAttrKind) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Copy for NonMacroAttrKind

impl Eq for NonMacroAttrKind

impl StructuralEq for NonMacroAttrKind

impl StructuralPartialEq for NonMacroAttrKind

Auto Trait Implementations

impl RefUnwindSafe for NonMacroAttrKind

impl Send for NonMacroAttrKind

impl Sync for NonMacroAttrKind

impl Unpin for NonMacroAttrKind

impl UnwindSafe for NonMacroAttrKind

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,

fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

fn allocate_from_iter( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>) -> &'a mut [T]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Layout

`Builtin(Symbol)`

`Tool`

`DeriveHelper`

`DeriveHelperCompat`

impl<D: Decoder> Decodable<D> for NonMacroAttrKind

fn decode(decoder: &mut D) -> Self

impl<E: Encoder> Encodable<E> for NonMacroAttrKind

fn encode(&self, encoder: &mut E)

fn hash<H: Hasher>(&self, state: &mut H)

fn hash_slice<H>(data: &[Self], state: &mut H)where
H: Hasher,

impl<CTX> HashStable<CTX> for NonMacroAttrKindwhere
__CTX: HashStableContext,

fn hash_stable(&self, hcx: &mut CTX, __hasher: &mut StableHasher)

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,

fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]`impl Read for &[u8]impl Write for &mut [u8]`

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,