Struct Unknown 

pub struct Unknown<'env>(/* private fields */);

Represents a raw JavaScript value

Implementations

impl Unknown<'_>

pub fn get_type(&self) -> Result<ValueType>

pub unsafe fn cast<V>(&self) -> Result<V>

where V: FromNapiValue,

Safety

This function should be called after JsUnknown::get_type

And the V must be match with the return value of get_type

pub unsafe fn from_raw_unchecked(env: napi_env, value: napi_value) -> Self

Safety

Unknown doesn’t have a type

pub fn create_ref(&self) -> Result<UnknownRef>

Create a reference to the unknown value

Trait Implementations

impl<'env> Clone for Unknown<'env>

fn clone(&self) -> Unknown<'env>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<Unknown<'_>> for Error

Available on non-target_family=wasm only.

fn from(value: Unknown<'_>) -> Self

Converts to this type from the input type.

impl FromNapiValue for Unknown<'_>

unsafe fn from_napi_value(env: napi_env, napi_val: napi_value) -> Result<Self>

Safety

fn from_unknown(value: Unknown<'_>) -> Result<Self>

impl<'env> JsValue<'env> for Unknown<'env>

fn value(&self) -> Value

fn raw(&self) -> napi_value

fn to_unknown(&self) -> Unknown<'env>

Convert the value to an unknown

fn coerce_to_bool(&self) -> Result<bool>

Coerce the value to a boolean

fn coerce_to_number(&self) -> Result<JsNumber<'_>>

fn coerce_to_string(&self) -> Result<JsString<'_>>

fn coerce_to_object(&self) -> Result<Object<'env>>

fn is_date(&self) -> Result<bool>

fn is_promise(&self) -> Result<bool>

fn is_error(&self) -> Result<bool>

fn is_typedarray(&self) -> Result<bool>

fn is_dataview(&self) -> Result<bool>

fn is_array(&self) -> Result<bool>

fn is_buffer(&self) -> Result<bool>

fn is_arraybuffer(&self) -> Result<bool>

fn instanceof<'c, Constructor>(&self, constructor: Constructor) -> Result<bool>

where Constructor: JsValue<'c>,

fn escape<'scope, E: JsValue<'scope> + FromNapiValue>( &self, escapable_handle_scope: EscapableHandleScope<'scope>, ) -> Result<E>

impl TryFrom<Unknown<'_>> for JsArrayBuffer

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsArrayBuffer>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsBoolean

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsBoolean>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsBuffer

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsBuffer>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsDataView

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsDataView>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsFunction

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsFunction>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsNull

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsNull>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsObject

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsObject>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsTypedArray

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsTypedArray>

Performs the conversion.

impl TryFrom<Unknown<'_>> for JsUndefined

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsUndefined>

Performs the conversion.

impl TypeName for Unknown<'_>

fn type_name() -> &'static str

fn value_type() -> ValueType

impl ValidateNapiValue for Unknown<'_>

unsafe fn validate(_env: napi_env, _napi_val: napi_value) -> Result<napi_value>

Safety

impl<'env> Copy for Unknown<'env>