Struct wasmedge_sdk::FuncRef

pub struct FuncRef { /* private fields */ }

Defines a reference to a host function.

The table_and_funcref example presents how to obtain and use FuncRef.

Implementations

impl FuncRef

pub fn ty(&self) -> &FuncType

Returns a reference to the ty of the host function this FuncRef points to.

pub fn run(
    &self,
    executor: &Executor,
    args: impl IntoIterator<Item = WasmValue>
) -> WasmEdgeResult<Vec<WasmValue>>

Runs this host function the reference refers to.

Arguments

• executor - The Executor instance.

• args - The arguments passed to the host function.

Error

If fail to run the host function, then an error is returned.

pub async fn run_async(
    &self,
    executor: &Executor,
    args: impl IntoIterator<Item = WasmValue> + Send
) -> WasmEdgeResult<Vec<WasmValue>>

Asynchronously runs this host function the reference refers to.

Arguments

• executor - The Executor instance.

• args - The arguments passed to the host function.

Error

If fail to run the host function, then an error is returned.

Trait Implementations

impl Clone for FuncRef

fn clone(&self) -> FuncRef

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FuncRef

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

Formats the value using the given formatter.

impl WasmVal for FuncRef

fn to_wasm_value(self) -> WasmValue

impl WasmValType for FuncRef

const WASM_TYPE: ValType = ValType::FuncRef

The Wasm type.