Struct ResourceBorrow

pub struct ResourceBorrow { /* private fields */ }

Represents a resource that is borrowed by the host. If this borrow originated from a host-owned resource, then it must be manually released via ResourceBorrow::drop, or the owned resource will be considered borrowed indefinitely.

Implementations

impl ResourceBorrow

pub fn rep<'a, T: 'static + Send + Sync, S, E: WasmEngine>( &self, ctx: &'a StoreContext<'_, S, E>, ) -> Result<&'a T>

Gets the internal representation of this resource. Fails if this is not a host resource, or if the resource was already dropped.

pub fn rep_mut<'a, T: 'static + Send + Sync, S, E: WasmEngine>( &self, ctx: &'a mut StoreContextMut<'_, S, E>, ) -> Result<&'a mut T>

Gets the internal mut representation of this resource. Fails if this is not a host resource, or if the resource was already dropped.

pub fn ty(&self) -> ResourceType

Gets the type of this value.

pub fn drop(&self, ctx: impl AsContextMut) -> Result<()>

Drops this borrow. Fails if this was not a manual borrow of a host resource.

Trait Implementations

impl Clone for ResourceBorrow

fn clone(&self) -> ResourceBorrow

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ResourceBorrow

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

Formats the value using the given formatter.

impl PartialEq for ResourceBorrow

fn eq(&self, other: &Self) -> 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.