Struct napi::bindgen_prelude::External

pub struct External<T: 'static> {
    pub adjusted_size: i64,
    /* private fields */
}

Fields

adjusted_size: i64

Implementations

impl<T: 'static> External<T>

pub fn new(value: T) -> Self

pub fn new_with_size_hint(value: T, size_hint: usize) -> Self

size_hint is a value to tell Node.js GC how much memory is used by this External object.

If getting the exact size_hint is difficult, you can provide an approximate value, it’s only effect to the GC.

If your External object is not effect to GC, you can use External::new instead.

Trait Implementations

impl<T: 'static> AsMut<T> for External<T>

fn as_mut(&mut self) -> &mut T

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

impl<T: 'static> AsRef<T> for External<T>

fn as_ref(&self) -> &T

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

impl<T: 'static> Deref for External<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: 'static> DerefMut for External<T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T: 'static> FromNapiValue for External<T>

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

Safety

fn from_unknown(value: JsUnknown) -> Result<Self>

impl<T: 'static> ToNapiValue for External<T>

unsafe fn to_napi_value(env: napi_env, val: Self) -> Result<napi_value>

Safety

impl<T: 'static> TypeName for External<T>

fn type_name() -> &'static str

fn value_type() -> ValueType

impl<T: 'static> ValidateNapiValue for External<T>

fn type_of() -> Vec<ValueType>

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

Safety