Enum rustc_hir::ItemKind

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

Variants

ExternCrate(Option<Symbol>)

Tuple Fields

0: 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 Path<'hir>, UseKind)

Tuple Fields

0: &'hir Path<'hir>

1: 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)

Tuple Fields

0: &'hir Ty<'hir>

1: Mutability

2: BodyId

A static item.

Const(&'hir Ty<'hir>, BodyId)

Tuple Fields

0: &'hir Ty<'hir>

1: BodyId

A const item.

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

Tuple Fields

0: FnSig<'hir>

1: Generics<'hir>

2: BodyId

A function declaration.

Macro(MacroDef)

Tuple Fields

0: MacroDef

A MBE macro definition (macro_rules! or macro).

Mod(Mod<'hir>)

Tuple Fields

0: Mod<'hir>

A module.

ForeignMod

Fields

abi: Abi

items: &'hir [ForeignItemRef]

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

GlobalAsm(&'hir InlineAsm<'hir>)

Tuple Fields

0: &'hir InlineAsm<'hir>

Module-level inline assembly (from global_asm!).

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

Tuple Fields

0: &'hir Ty<'hir>

1: Generics<'hir>

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

OpaqueTy(OpaqueTy<'hir>)

Tuple Fields

0: OpaqueTy<'hir>

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

Enum(EnumDef<'hir>, Generics<'hir>)

Tuple Fields

0: EnumDef<'hir>

1: Generics<'hir>

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

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

Tuple Fields

0: VariantData<'hir>

1: Generics<'hir>

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

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

Tuple Fields

0: VariantData<'hir>

1: Generics<'hir>

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

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

Tuple Fields

0: IsAuto

1: Unsafety

2: Generics<'hir>

3: GenericBounds<'hir>

4: &'hir [TraitItemRef]

A trait definition.

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

Tuple Fields

0: Generics<'hir>

1: GenericBounds<'hir>

A trait alias.

Impl(Impl<'hir>)

Tuple Fields

0: 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> 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)

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: 128 bytes

Size for each variant:

• ExternCrate: 7 bytes
• Use: 15 bytes
• Static: 23 bytes
• Const: 23 bytes
• Fn: 87 bytes
• Macro: 23 bytes
• Mod: 31 bytes
• ForeignMod: 23 bytes
• GlobalAsm: 15 bytes
• TyAlias: 63 bytes
• OpaqueTy: 79 bytes
• Enum: 71 bytes
• Struct: 87 bytes
• Union: 87 bytes
• Trait: 87 bytes
• TraitAlias: 71 bytes
• Impl: 127 bytes