Enum rustc_hir::ItemKind

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pub enum ItemKind<'hir> {
Show 17 variants ExternCrate(Option<Symbol>), Use(&'hir UsePath<'hir>, UseKind), Static(&'hir Ty<'hir>, Mutability, BodyId), Const(&'hir Ty<'hir>, &'hir Generics<'hir>, BodyId), Fn(FnSig<'hir>, &'hir Generics<'hir>, BodyId), Macro(&'hir MacroDef, MacroKind), Mod(&'hir Mod<'hir>), ForeignMod { abi: Abi, items: &'hir [ForeignItemRef], }, GlobalAsm(&'hir InlineAsm<'hir>), TyAlias(&'hir Ty<'hir>, &'hir Generics<'hir>), OpaqueTy(&'hir OpaqueTy<'hir>), Enum(EnumDef<'hir>, &'hir Generics<'hir>), Struct(VariantData<'hir>, &'hir Generics<'hir>), Union(VariantData<'hir>, &'hir Generics<'hir>), Trait(IsAuto, Unsafety, &'hir Generics<'hir>, GenericBounds<'hir>, &'hir [TraitItemRef]), TraitAlias(&'hir Generics<'hir>, GenericBounds<'hir>), Impl(&'hir Impl<'hir>),
}

Variants§

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ExternCrate(Option<Symbol>)

An extern crate item, with optional original crate name if the crate was renamed.

E.g., extern crate foo or extern crate foo_bar as foo.

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Use(&'hir UsePath<'hir>, UseKind)

use foo::bar::*; or use foo::bar::baz as quux;

or just

use foo::bar::baz; (with as baz implicitly on the right).

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Static(&'hir Ty<'hir>, Mutability, BodyId)

A static item.

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Const(&'hir Ty<'hir>, &'hir Generics<'hir>, BodyId)

A const item.

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Fn(FnSig<'hir>, &'hir Generics<'hir>, BodyId)

A function declaration.

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Macro(&'hir MacroDef, MacroKind)

A MBE macro definition (macro_rules! or macro).

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Mod(&'hir Mod<'hir>)

A module.

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ForeignMod

Fields

§abi: Abi
§items: &'hir [ForeignItemRef]

An external module, e.g. extern { .. }.

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GlobalAsm(&'hir InlineAsm<'hir>)

Module-level inline assembly (from global_asm!).

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TyAlias(&'hir Ty<'hir>, &'hir Generics<'hir>)

A type alias, e.g., type Foo = Bar<u8>.

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OpaqueTy(&'hir OpaqueTy<'hir>)

An opaque impl Trait type alias, e.g., type Foo = impl Bar;.

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Enum(EnumDef<'hir>, &'hir Generics<'hir>)

An enum definition, e.g., enum Foo<A, B> {C<A>, D<B>}.

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Struct(VariantData<'hir>, &'hir Generics<'hir>)

A struct definition, e.g., struct Foo<A> {x: A}.

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Union(VariantData<'hir>, &'hir Generics<'hir>)

A union definition, e.g., union Foo<A, B> {x: A, y: B}.

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Trait(IsAuto, Unsafety, &'hir Generics<'hir>, GenericBounds<'hir>, &'hir [TraitItemRef])

A trait definition.

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TraitAlias(&'hir Generics<'hir>, GenericBounds<'hir>)

A trait alias.

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Impl(&'hir Impl<'hir>)

An implementation, e.g., impl<A> Trait for Foo { .. }.

Implementations§

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impl ItemKind<'_>

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pub fn generics(&self) -> Option<&Generics<'_>>

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

Trait Implementations§

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impl<'hir> Clone for ItemKind<'hir>

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fn clone(&self) -> ItemKind<'hir>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'hir> Debug for ItemKind<'hir>

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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<'hir, __CTX> HashStable<__CTX> for ItemKind<'hir>
where __CTX: HashStableContext,

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

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impl<'hir> Copy for ItemKind<'hir>

Auto Trait Implementations§

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impl<'hir> DynSend for ItemKind<'hir>

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impl<'hir> DynSync for ItemKind<'hir>

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impl<'hir> !RefUnwindSafe for ItemKind<'hir>

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impl<'hir> !Send for ItemKind<'hir>

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impl<'hir> !Sync for ItemKind<'hir>

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impl<'hir> Unpin for ItemKind<'hir>

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impl<'hir> !UnwindSafe for ItemKind<'hir>

Blanket Implementations§

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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<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

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

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fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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

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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> 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

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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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<U> for T
where U: Into<T>,

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type Error = Infallible

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

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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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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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: 56 bytes

Size for each variant:

  • ExternCrate: 7 bytes
  • Use: 15 bytes
  • Static: 23 bytes
  • Const: 31 bytes
  • Fn: 55 bytes
  • Macro: 15 bytes
  • Mod: 15 bytes
  • ForeignMod: 23 bytes
  • GlobalAsm: 15 bytes
  • TyAlias: 23 bytes
  • OpaqueTy: 15 bytes
  • Enum: 31 bytes
  • Struct: 47 bytes
  • Union: 47 bytes
  • Trait: 47 bytes
  • TraitAlias: 31 bytes
  • Impl: 15 bytes