Enum rustc_ast::ast::ItemKind

source ·

pub enum ItemKind {
Show 17 variants
    ExternCrate(Option<Symbol>),
    Use(UseTree),
    Static(P<Ty>, Mutability, Option<P<Expr>>),
    Const(Defaultness, P<Ty>, Option<P<Expr>>),
    Fn(Box<Fn>),
    Mod(Unsafe, ModKind),
    ForeignMod(ForeignMod),
    GlobalAsm(Box<InlineAsm>),
    TyAlias(Box<TyAlias>),
    Enum(EnumDef, Generics),
    Struct(VariantData, Generics),
    Union(VariantData, Generics),
    Trait(Box<Trait>),
    TraitAlias(Generics, GenericBounds),
    Impl(Box<Impl>),
    MacCall(P<MacCall>),
    MacroDef(MacroDef),
}

Variants

`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.

`Use(UseTree)`

A use declaration item (use).

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

`Static(P<Ty>, Mutability, Option<P<Expr>>)`

A static item (static).

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

`Const(Defaultness, P<Ty>, Option<P<Expr>>)`

A constant item (const).

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

`Fn(Box<Fn>)`

A function declaration (fn).

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

`Mod(Unsafe, ModKind)`

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.

`ForeignMod(ForeignMod)`

An external module (extern).

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

`GlobalAsm(Box<InlineAsm>)`

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

`TyAlias(Box<TyAlias>)`

A type alias (type).

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

`Enum(EnumDef, Generics)`

An enum definition (enum).

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

`Struct(VariantData, Generics)`

A struct definition (struct).

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

`Union(VariantData, Generics)`

A union definition (union).

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

`Trait(Box<Trait>)`

A trait declaration (trait).

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

`TraitAlias(Generics, GenericBounds)`

Trait alias

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

`Impl(Box<Impl>)`

An implementation.

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

`MacCall(P<MacCall>)`

A macro invocation.

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

`MacroDef(MacroDef)`

A macro definition.

Implementations

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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

1.0.0 · source

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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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

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

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

impl !RefUnwindSafe for ItemKind

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 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,

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 for Twhere
U: Into<T>,

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>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::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: 87 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

Enum rustc_ast::ast::ItemKind

Variants

ExternCrate(Option<Symbol>)

Use(UseTree)

Static(P<Ty>, Mutability, Option<P<Expr>>)

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

Fn(Box<Fn>)

Mod(Unsafe, ModKind)

ForeignMod(ForeignMod)

GlobalAsm(Box<InlineAsm>)

TyAlias(Box<TyAlias>)

Enum(EnumDef, Generics)

Struct(VariantData, Generics)

Union(VariantData, Generics)

Trait(Box<Trait>)

TraitAlias(Generics, GenericBounds)

Impl(Box<Impl>)

MacCall(P<MacCall>)

MacroDef(MacroDef)

Implementations

impl ItemKind

pub fn article(&self) -> &str

pub fn descr(&self) -> &str

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

Trait Implementations

impl Clone for ItemKind

fn clone(&self) -> ItemKind

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

impl Debug for ItemKind

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

impl<__D: Decoder> Decodable<__D> for ItemKind

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

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

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

impl From<AssocItemKind> for ItemKind

fn from(assoc_item_kind: AssocItemKind) -> ItemKind

impl From<ForeignItemKind> for ItemKind

fn from(foreign_item_kind: ForeignItemKind) -> ItemKind

impl TryFrom<ItemKind> for AssocItemKind

type Error = ItemKind

fn try_from(item_kind: ItemKind) -> Result<AssocItemKind, ItemKind>

impl TryFrom<ItemKind> for ForeignItemKind

type Error = ItemKind

fn try_from(item_kind: ItemKind) -> Result<ForeignItemKind, ItemKind>

Auto Trait Implementations

impl !RefUnwindSafe for ItemKind

impl !Send for ItemKind

impl !Sync for ItemKind

impl Unpin for ItemKind

impl !UnwindSafe for ItemKind

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

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

Layout

`ExternCrate(Option<Symbol>)`

`Use(UseTree)`

`Static(P<Ty>, Mutability, Option<P<Expr>>)`

`Const(Defaultness, P<Ty>, Option<P<Expr>>)`

`Fn(Box<Fn>)`

`Mod(Unsafe, ModKind)`

`ForeignMod(ForeignMod)`

`GlobalAsm(Box<InlineAsm>)`

`TyAlias(Box<TyAlias>)`

`Enum(EnumDef, Generics)`

`Struct(VariantData, Generics)`

`Union(VariantData, Generics)`

`Trait(Box<Trait>)`

`TraitAlias(Generics, GenericBounds)`

`Impl(Box<Impl>)`

`MacCall(P<MacCall>)`

`MacroDef(MacroDef)`

impl<D: Decoder> Decodable<D> for ItemKind

fn decode(decoder: &mut D) -> Self

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

fn encode(&self, encoder: &mut E)

impl<T> Any for Twhere
T: 'static + ?Sized,

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

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

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

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,