Enum rustc_ast::ast::Defaultness

source · [−]

pub enum Defaultness {
    Default(Span),
    Final,
}

Expand description

Item defaultness. For details see the RFC #2532.

Variants

`Default(Span)`

`Final`

Trait Implementations

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impl Clone for Defaultness

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fn clone(&self) -> Defaultness

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 Defaultness

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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: &Defaultness) -> 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: &Defaultness) -> bool

This method tests for !=.

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impl StructuralPartialEq for Defaultness

Auto Trait Implementations

impl RefUnwindSafe for Defaultness

impl UnwindSafe for Defaultness

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

Size for each variant:

Default: 8 bytes
Final: 0 bytes

Enum rustc_ast::ast::Defaultness

Variants

Default(Span)

Final

Trait Implementations

impl Clone for Defaultness

fn clone(&self) -> Defaultness

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

impl Debug for Defaultness

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

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

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

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

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

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

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

impl PartialEq<Defaultness> for Defaultness

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

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

impl Copy for Defaultness

impl StructuralPartialEq for Defaultness

Auto Trait Implementations

impl RefUnwindSafe for Defaultness

impl !Send for Defaultness

impl !Sync for Defaultness

impl Unpin for Defaultness

impl UnwindSafe for Defaultness

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

`Default(Span)`

`Final`

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

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

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

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

impl<CTX> HashStable<CTX> for Defaultness 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>,