Struct rings_node::backend::extension::MaybeBackendMessage

pub struct MaybeBackendMessage(/* private fields */);

Wrapper for BackendMessage that can be converted from and to the native WebAssembly type.

Implementations

impl MaybeBackendMessage

pub fn msg_type( env: FunctionEnvMut<'_, MaybeBackendMessage>, v: &[Value] ) -> Result<Vec<Value>, RuntimeError>

wasm function type Fn (Option<ExternalRef>) -> I32, external ref is always pointed to Env

pub fn extra( env: FunctionEnvMut<'_, MaybeBackendMessage>, v: &[Value] ) -> Result<Vec<Value>, RuntimeError>

wasm function type Fn (Option<ExternalRef>) -> [I32; 30], external ref is always pointed to Env

pub fn data( env: FunctionEnvMut<'_, MaybeBackendMessage>, v: &[Value] ) -> Result<Vec<Value>, RuntimeError>

wasm function type Fn (Option<ExternalRef>) -> \[I32\], external ref is always pointed to Env

pub fn read_at( env: FunctionEnvMut<'_, MaybeBackendMessage>, params: &[Value] ) -> Result<Vec<Value>, RuntimeError>

wasm function type Fn (Option<ExternalRef>, i32) -> \[i32\], external ref is always pointed to Env

pub fn write_at( env: FunctionEnvMut<'_, MaybeBackendMessage>, params: &[Value] ) -> Result<Vec<Value>, RuntimeError>

wasm function type Fn (Option<ExternalRef>, i32) -> \[i32\], external ref is always pointed to Env

impl MaybeBackendMessage

pub fn wrap(&self, msg: BackendMessage) -> Result<()>

Ask the instance to wrap a new backend message;

Trait Implementations

impl Clone for MaybeBackendMessage

fn clone(&self) -> MaybeBackendMessage

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MaybeBackendMessage

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

Formats the value using the given formatter.

impl Default for MaybeBackendMessage

fn default() -> MaybeBackendMessage

Returns the “default value” for a type.

impl From<BackendMessage> for MaybeBackendMessage

fn from(msg: BackendMessage) -> Self

Converts to this type from the input type.

impl FromToNativeWasmType for MaybeBackendMessage

type Native = Option<ExternRef>

Native Wasm type.

fn from_native(native: Self::Native) -> Self

Convert a value of kind Self::Native to Self.

fn to_native(self) -> Self::Native

Convert self to Self::Native.

fn is_from_store(&self, _store: &impl AsStoreRef) -> bool

Returns whether the given value is from the given store.

impl TryFrom<MaybeBackendMessage> for FunctionEnv<MaybeBackendMessage>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(data: MaybeBackendMessage) -> Result<Self>

Performs the conversion.

impl WasmABILander for MaybeBackendMessage

fn land_abi(env: &FunctionEnv<Self>, store: &mut impl AsStoreMut) -> Imports

The land_abi function needs to return an ImportObject. read more: https://developer.mozilla.org/en-US/docs/WebAssembly/JavaScript_interface/instantiate