Enum rustc::hir::Defaultness

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

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Variants

Default

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Fields of Default

has_value: bool

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Final

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Methods

impl Defaultness

pub fn has_value(&self) -> bool

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pub fn is_final(&self) -> bool

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pub fn is_default(&self) -> bool

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Trait Implementations

impl Copy for Defaultness

impl Clone for Defaultness

fn clone(&self) -> Defaultness

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Defaultness

fn eq(&self, __arg_0: &Defaultness) -> bool

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

fn ne(&self, __arg_0: &Defaultness) -> bool

This method tests for !=.

impl Eq for Defaultness

impl Encodable for Defaultness

fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>

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impl Decodable for Defaultness

fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<Defaultness, __D::Error>

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impl Hash for Defaultness

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Debug for Defaultness

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'gcx> HashStable<StableHashingContext<'gcx>> for Defaultness

fn hash_stable<W: StableHasherResult>(
    &self,
    hcx: &mut StableHashingContext<'gcx>,
    hasher: &mut StableHasher<W>
)

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?