Enum rustc_ast::ast::UseTreeKind

source · [−]

pub enum UseTreeKind {
    Simple(Option<Ident>, NodeId, NodeId),
    Nested(Vec<(UseTree, NodeId)>),
    Glob,
}

Expand description

Part of use item to the right of its prefix.

Variants

`Simple(Option<Ident>, NodeId, NodeId)`

use prefix or use prefix as rename

The extra NodeIds are for HIR lowering, when additional statements are created for each namespace.

`Nested(Vec<(UseTree, NodeId)>)`

use prefix::{...}

`Glob`

use prefix::*

Trait Implementations

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impl Clone for UseTreeKind

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fn clone(&self) -> UseTreeKind

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 UseTreeKind

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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 encode(&self, encoder: &mut E) -> Result<(), <__E as Encoder>::Error>

Auto Trait Implementations

impl !RefUnwindSafe for UseTreeKind

impl !UnwindSafe for UseTreeKind

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

pub 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

pub fn from(t: T) -> T

Performs the conversion.

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub 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: 32 bytes

Size for each variant:

Simple: 20 bytes
Nested: 28 bytes
Glob: 0 bytes

Enum rustc_ast::ast::UseTreeKind

Variants

Simple(Option<Ident>, NodeId, NodeId)

Nested(Vec<(UseTree, NodeId)>)

Glob

Trait Implementations

impl Clone for UseTreeKind

fn clone(&self) -> UseTreeKind

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

impl Debug for UseTreeKind

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

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

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

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

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

Auto Trait Implementations

impl !RefUnwindSafe for UseTreeKind

impl !Send for UseTreeKind

impl !Sync for UseTreeKind

impl Unpin for UseTreeKind

impl !UnwindSafe for UseTreeKind

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

Layout

`Simple(Option<Ident>, NodeId, NodeId)`

`Nested(Vec<(UseTree, NodeId)>)`

`Glob`

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

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

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

fn encode(&self, encoder: &mut E) -> Result<(), <__E as Encoder>::Error>

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

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

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

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

impl<T> ToOwned for T where
T: Clone,

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

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