Struct Handle 

#[repr(C)]
pub struct Handle<T> {
    pub _phantom_0: PhantomData<UnsafeCell<T>>,
    pub ptr: *const T,
}

Reference to a T that has been rooted elsewhere. This is most useful as a parameter type, which guarantees that the T lvalue is properly rooted. See “Move GC Stack Rooting” above.

If you want to add additional methods to Handle for a specific specialization, define a HandleOperations specialization containing them.

Fields

_phantom_0: PhantomData<UnsafeCell<T>>

ptr: *const T

Implementations

impl<T> Handle<T>

pub fn get(&self) -> T

where T: Copy,

pub unsafe fn from_marked_location(ptr: *const T) -> Handle<T>

impl Handle<Value>

pub fn null() -> HandleValue

pub fn undefined() -> HandleValue

impl Handle<*mut JSObject>

pub fn null() -> HandleObject

Trait Implementations

impl<T: Clone> Clone for Handle<T>

fn clone(&self) -> Handle<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Handle<T>

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

Formats the value using the given formatter.

impl<T> Deref for Handle<T>

type Target = T

The resulting type after dereferencing.

fn deref<'a>(&'a self) -> &'a T

Dereferences the value.

impl From<Handle<Value>> for HandleValueArray

fn from(handle: Handle<JSVal>) -> HandleValueArray

Converts to this type from the input type.

impl<T: IntoHandle> From<T> for Handle<T::Target>

fn from(value: T) -> Self

Converts to this type from the input type.

impl<T: PartialEq> PartialEq for Handle<T>

fn eq(&self, other: &Handle<T>) -> 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<T: Copy> Copy for Handle<T>

impl<T> StructuralPartialEq for Handle<T>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes