Enum rustc_ast::ast::ItemKind

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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<Fn>), Mod(UnsafeModKind), ForeignMod(ForeignMod), GlobalAsm(Box<InlineAsm>), TyAlias(Box<TyAlias>), Enum(EnumDefGenerics), Struct(VariantDataGenerics), Union(VariantDataGenerics), Trait(Box<Trait>), TraitAlias(GenericsGenericBounds), Impl(Box<Impl>), MacCall(P<MacCall>), MacroDef(MacroDef),
}

Variants§

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ExternCrate(Option<Symbol>)

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.

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Use(UseTree)

A use declaration item (use).

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

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Static(P<Ty>, MutabilityOption<P<Expr>>)

A static item (static).

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

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Const(DefaultnessP<Ty>, Option<P<Expr>>)

A constant item (const).

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

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Fn(Box<Fn>)

A function declaration (fn).

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

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Mod(UnsafeModKind)

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.

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ForeignMod(ForeignMod)

An external module (extern).

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

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GlobalAsm(Box<InlineAsm>)

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

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TyAlias(Box<TyAlias>)

A type alias (type).

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

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Enum(EnumDefGenerics)

An enum definition (enum).

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

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Struct(VariantDataGenerics)

A struct definition (struct).

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

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Union(VariantDataGenerics)

A union definition (union).

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

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Trait(Box<Trait>)

A trait declaration (trait).

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

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TraitAlias(GenericsGenericBounds)

Trait alias

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

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Impl(Box<Impl>)

An implementation.

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

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MacCall(P<MacCall>)

A macro invocation.

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

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MacroDef(MacroDef)

A macro definition.

Implementations§

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impl ItemKind

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pub fn article(&self) -> &str

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pub fn descr(&self) -> &str

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

Trait Implementations§

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impl Clone for ItemKind

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fn clone(&self) -> ItemKind

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 Debug for ItemKind

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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 ItemKind

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

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

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

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impl From<AssocItemKind> for ItemKind

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fn from(assoc_item_kind: AssocItemKind) -> ItemKind

Converts to this type from the input type.
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impl From<ForeignItemKind> for ItemKind

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fn from(foreign_item_kind: ForeignItemKind) -> ItemKind

Converts to this type from the input type.
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impl TryFrom<ItemKind> for AssocItemKind

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type Error = ItemKind

The type returned in the event of a conversion error.
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fn try_from(item_kind: ItemKind) -> Result<AssocItemKind, ItemKind>

Performs the conversion.
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impl TryFrom<ItemKind> for ForeignItemKind

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type Error = ItemKind

The type returned in the event of a conversion error.
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fn try_from(item_kind: ItemKind) -> Result<ForeignItemKind, ItemKind>

Performs the conversion.

Auto Trait Implementations§

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<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<U> 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,

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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 Twhere
    U: Into<T>,

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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<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
    U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::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: 112 bytes

Size for each variant:

  • ExternCrate: 7 bytes
  • Use: 71 bytes
  • Static: 23 bytes
  • Const: 31 bytes
  • Fn: 15 bytes
  • Mod: 63 bytes
  • ForeignMod: 71 bytes
  • GlobalAsm: 15 bytes
  • TyAlias: 15 bytes
  • Enum: 103 bytes
  • Struct: 111 bytes
  • Union: 111 bytes
  • Trait: 15 bytes
  • TraitAlias: 103 bytes
  • Impl: 15 bytes
  • MacCall: 15 bytes
  • MacroDef: 23 bytes