Enum rustc_hir::hir::Defaultness[][src]

pub enum Defaultness {
    Default {
        has_value: bool,
    },
    Final,
}

Variants

Default
Show fields

Fields of Default

has_value: bool
Final

Implementations

impl Defaultness[src]

pub fn has_value(&self) -> bool[src]

pub fn is_final(&self) -> bool[src]

pub fn is_default(&self) -> bool[src]

Trait Implementations

impl Clone for Defaultness[src]

fn clone(&self) -> Defaultness[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for Defaultness[src]

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

Formats the value using the given formatter. Read more

impl<__D: Decoder> Decodable<__D> for Defaultness[src]

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>[src]

impl<__E: Encoder> Encodable<__E> for Defaultness[src]

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

impl Hash for Defaultness[src]

fn hash<__H: Hasher>(&self, state: &mut __H)[src]

Feeds this value into the given Hasher. Read more

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher
1.3.0[src]

Feeds a slice of this type into the given Hasher. Read more

impl<__CTX> HashStable<__CTX> for Defaultness where
    __CTX: HashStableContext
[src]

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

impl PartialEq<Defaultness> for Defaultness[src]

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

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

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

This method tests for !=.

impl Copy for Defaultness[src]

impl Eq for Defaultness[src]

impl StructuralEq for Defaultness[src]

impl StructuralPartialEq for Defaultness[src]

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
[src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

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

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

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

recently added

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

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.

Layout

Note: Most layout information is completely unstable and may be different between compiler versions and platforms. 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: 1 byte