Enum rustc_ast::ast::ItemKind[][src]

pub enum ItemKind {
Show 17 variants ExternCrate(Option<Symbol>), Use(UseTree), Static(P<Ty>, MutabilityOption<P<Expr>>), Const(DefaultnessP<Ty>, Option<P<Expr>>), Fn(Box<FnKind>), Mod(UnsafeModKind), ForeignMod(ForeignMod), GlobalAsm(InlineAsm), TyAlias(Box<TyAliasKind>), Enum(EnumDefGenerics), Struct(VariantDataGenerics), Union(VariantDataGenerics), Trait(Box<TraitKind>), TraitAlias(GenericsGenericBounds), Impl(Box<ImplKind>), MacCall(MacCall), MacroDef(MacroDef),



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

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

Tuple Fields of ExternCrate

0: Option<Symbol>

A use declaration item (use).

E.g., use foo;, use foo::bar; or use foo::bar as FooBar;.

Tuple Fields of Use

0: UseTree
Static(P<Ty>, MutabilityOption<P<Expr>>)

A static item (static).

E.g., static FOO: i32 = 42; or static FOO: &'static str = "bar";.

Tuple Fields of Static

0: P<Ty>1: Mutability2: Option<P<Expr>>
Const(DefaultnessP<Ty>, Option<P<Expr>>)

A constant item (const).

E.g., const FOO: i32 = 42;.

Tuple Fields of Const

0: Defaultness1: P<Ty>2: Option<P<Expr>>

A function declaration (fn).

E.g., fn foo(bar: usize) -> usize { .. }.

Tuple Fields of Fn

0: Box<FnKind>

A module declaration (mod).

E.g., mod foo; or mod foo { .. }. unsafe keyword on modules is accepted syntactically for macro DSLs, but not semantically by Rust.

Tuple Fields of Mod

0: Unsafe1: ModKind

An external module (extern).

E.g., extern {} or extern "C" {}.

Tuple Fields of ForeignMod

0: ForeignMod

Module-level inline assembly (from global_asm!()).

Tuple Fields of GlobalAsm

0: InlineAsm

A type alias (type).

E.g., type Foo = Bar<u8>;.

Tuple Fields of TyAlias

0: Box<TyAliasKind>

An enum definition (enum).

E.g., enum Foo<A, B> { C<A>, D<B> }.

Tuple Fields of Enum

0: EnumDef1: Generics

A struct definition (struct).

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

Tuple Fields of Struct

0: VariantData1: Generics

A union definition (union).

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

Tuple Fields of Union

0: VariantData1: Generics

A trait declaration (trait).

E.g., trait Foo { .. }, trait Foo<T> { .. } or auto trait Foo {}.

Tuple Fields of Trait

0: Box<TraitKind>

Trait alias

E.g., trait Foo = Bar + Quux;.

Tuple Fields of TraitAlias

0: Generics1: GenericBounds

An implementation.

E.g., impl<A> Foo<A> { .. } or impl<A> Trait for Foo<A> { .. }.

Tuple Fields of Impl

0: Box<ImplKind>

A macro invocation.

E.g., foo!(..).

Tuple Fields of MacCall

0: MacCall

A macro definition.

Tuple Fields of MacroDef

0: MacroDef


Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Performs the conversion.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

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

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.


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: 112 bytes

Size for each variant: