Enum rustc_hir::hir::ItemKind

pub enum ItemKind<'hir> {
    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

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.

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).

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

A static item.

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

A const item.

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

A function declaration.

Macro(&'hir MacroDef, MacroKind)

A MBE macro definition (macro_rules! or macro).

Mod(&'hir Mod<'hir>)

A module.

ForeignMod

Fields

abi: Abi

items: &'hir [ForeignItemRef]

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

GlobalAsm(&'hir InlineAsm<'hir>)

Module-level inline assembly (from global_asm!).

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

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

OpaqueTy(&'hir OpaqueTy<'hir>)

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

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

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

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

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

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

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

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

A trait definition.

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

A trait alias.

Impl(&'hir Impl<'hir>)

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

Implementations

impl ItemKind<'_>

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

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

Trait Implementations

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'hir> Debug for ItemKind<'hir>

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

Formats the value using the given formatter.

impl<'hir, __CTX> HashStable<__CTX> for ItemKind<'hir>

where __CTX: HashStableContext,

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

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

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: 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