Struct wasmtime::ExternRef

pub struct ExternRef { /* fields omitted */ }

Represents an opaque reference to any data within WebAssembly.

Implementations

impl ExternRef

pub fn new<T>(store: &Store, value: T) -> ExternRef where
    T: 'static + Any, 

Creates a new instance of ExternRef wrapping the given value.

pub fn store(&self) -> Option<Store>

Get this reference's store.

Returns None if this reference outlived its store.

pub fn data(&self) -> &dyn Any

Get the underlying data for this ExternRef.

pub fn ptr_eq(&self, other: &ExternRef) -> bool

Does this ExternRef point to the same inner value as other?0

This is only pointer equality, and does not run any inner value's Eq implementation.

pub fn host_info(&self) -> Option<Rc<RefCell<dyn Any>>>

Returns the host information for this externref, if previously created with set_host_info.

pub fn set_host_info<T>(&self, info: T) -> Option<Rc<RefCell<dyn Any>>> where
    T: 'static + Any, 

Set the host information for this externref, returning the old host information if it was previously set.

pub fn remove_host_info(&self) -> Option<Rc<RefCell<dyn Any>>>

Remove the host information for this externref, returning the old host information if it was previously set.

Trait Implementations

impl Clone for ExternRef

fn clone(&self) -> ExternRef

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExternRef

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

Formats the value using the given formatter.

impl From<ExternRef> for Val

fn from(val: ExternRef) -> Val

Performs the conversion.