Struct Null 

#[repr(transparent)]
pub struct Null {
    pub obj: JsValue,
}

Fields

obj: JsValue

Implementations

impl Null

pub const NULL: Null

Trait Implementations

impl AsRef<JsValue> for Null

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl BatchableResult for Null

fn try_placeholder(batch: &mut Runtime) -> Option<Null>

Returns Some(placeholder) for opaque types that can be batched, None for types that require flushing to get the actual value.

impl BinaryDecode for Null

fn decode(decoder: &mut DecodedData<'_>) -> Result<Null, DecodeError>

impl BinaryEncode for Null

fn encode(self, encoder: &mut EncodedData)

impl Clone for Null

fn clone(&self) -> Null

Returns a duplicate 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<(), Error>

Formats the value using the given formatter.

impl Default for Null

fn default() -> Null

Returns the “default value” for a type.

impl Display for Null

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

Formats the value using the given formatter.

impl EncodeTypeDef for Null

fn encode_type_def(buf: &mut Vec<u8>)

Encode this type’s definition into the buffer. For primitives, this is just the TypeTag byte. For callbacks, this includes param count, param types, and return type.

impl ErasableGeneric for Null

type Repr = JsValue

impl From<JsValue> for Null

fn from(obj: JsValue) -> Null

Converts to this type from the input type.

impl From<Null> for JsValue

fn from(value: Null) -> JsValue

Converts to this type from the input type.

impl IntoJsGeneric for Null

type JsCanon = Null

fn to_js(self) -> Null

impl JsCast for Null

fn instanceof(value: &JsValue) -> bool

Check if a JsValue is an instance of this type.

fn is_type_of(value: &JsValue) -> bool

Performs a dynamic type check to see whether the JsValue provided is a value of this type.

fn unchecked_from_js(value: JsValue) -> Null

Unchecked cast from JsValue to this type.

fn unchecked_from_js_ref(value: &JsValue) -> &Null

Unchecked cast from a JsValue reference to a reference of this type.

fn has_type<T>(&self) -> bool

where T: JsCast,

Test whether this JS value has a type T.

fn dyn_into<T>(self) -> Result<T, Self>

where T: JsCast,

Try to cast this value to type T.

fn dyn_ref<T>(&self) -> Option<&T>

where T: JsCast,

Try to get a reference to type T from this value.

fn is_instance_of<T>(&self) -> bool

where T: JsCast,

Test whether this JS value is an instance of the type T.

fn unchecked_into<T>(self) -> T

where T: JsCast,

Unchecked cast to another type.

fn unchecked_ref<T>(&self) -> &T

where T: JsCast,

Unchecked cast to a reference of another type.

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 Eq for Null

impl StructuralPartialEq for Null

impl<T> UpcastFrom<Null> for JsOption<T>

impl UpcastFrom<Null> for JsValue

impl UpcastFrom<Null> for Null