Struct rustc_ast::ast::Label

source · [−]

pub struct Label {
    pub ident: Ident,
}

Expand description

A “Label” is an identifier of some point in sources, e.g. in the following code:

'outer: loop {
    break 'outer;
}

'outer is a label.

Fields

ident: Ident

Trait Implementations

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impl Clone for Label

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fn clone(&self) -> Label

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 Label

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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 eq(&self, other: &Label) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Label) -> bool

This method tests for !=.

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impl Copy for Label

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impl Eq for Label

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impl StructuralPartialEq for Label

Auto Trait Implementations

impl !Send for Label

impl !Sync for Label

Blanket Implementations

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impl<T> Any for T where
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 T where
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 T where
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 T where
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 T where
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 T where
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 T where
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: 12 bytes

Struct rustc_ast::ast::Label

Fields

Trait Implementations

impl Clone for Label

fn clone(&self) -> Label

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

impl Debug for Label

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

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

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

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

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

impl<__CTX> HashStable<__CTX> for Label where __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq<Label> for Label

fn eq(&self, other: &Label) -> bool

fn ne(&self, other: &Label) -> bool

impl Copy for Label

impl Eq for Label

impl StructuralEq for Label

impl StructuralPartialEq for Label

Auto Trait Implementations

impl RefUnwindSafe for Label

impl !Send for Label

impl !Sync for Label

impl Unpin for Label

impl UnwindSafe for Label

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

fn into(self) -> U

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

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

Layout

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

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

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

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

impl<CTX> HashStable<CTX> for Label where
__CTX: HashStableContext,

fn hash_stable(&self, hcx: &mut CTX, __hasher: &mut StableHasher)

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>,