Struct Null

pub struct Null {
    pub span: Span,
}

Fields

span: Span

Trait Implementations

impl Archive for Null

type Archived = ArchivedNull

The archived representation of this type.

type Resolver = NullResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

unsafe fn resolve( &self, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived, )

Creates the archived version of this value at the given position and writes it to the given output.

impl AstNode for Null

const TYPE: &'static str = "NullLiteral"

impl Clone for Null

fn clone(&self) -> Null

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Null

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Null

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<__D: Fallible + ?Sized> Deserialize<Null, __D> for Archived<Null>

fn deserialize(&self, deserializer: &mut __D) -> Result<Null, __D::Error>

Deserializes using the given deserializer

impl EqIgnoreSpan for Null

fn eq_ignore_span(&self, other: &Self) -> bool

impl From<Null> for Box<Expr>

fn from(src: Null) -> Box<Expr>

Converts to this type from the input type.

impl From<Null> for Expr

fn from(src: Null) -> Expr

Converts to this type from the input type.

impl From<Null> for Lit

fn from(v: Null) -> Self

Converts to this type from the input type.

impl Hash for Null

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Null

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<__S> Serialize<__S> for Null

where __S: ScratchSpace + Serializer + Fallible + ?Sized,

fn serialize(&self, serializer: &mut __S) -> Result<Self::Resolver, __S::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.

impl Serialize for Null

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Spanned for Null

fn span(&self) -> Span

Get span of self.

fn span_lo(&self) -> BytePos

fn span_hi(&self) -> BytePos

impl Take for Null

fn dummy() -> Self

Create a dummy value of this type.

fn take(&mut self) -> Self

fn map_with_mut<F>(&mut self, op: F)

where F: FnOnce(Self) -> Self,

Mutate self using op, which accepts owned data.

impl Copy for Null

impl Eq for Null

impl StructuralPartialEq for Null