Struct Func

pub struct Func { /* private fields */ }

A component model function that may be invoked to interact with an Instance.

Implementations

impl Func

pub fn new<C: AsContextMut>( ctx: C, ty: FuncType, f: impl 'static + Send + Sync + Fn(StoreContextMut<'_, C::UserState, C::Engine>, &[Value], &mut [Value]) -> Result<()>, ) -> Self

Creates a new function with the provided type and arguments.

pub fn call<C: AsContextMut>( &self, ctx: C, arguments: &[Value], results: &mut [Value], ) -> Result<()>

Calls this function, returning an error if:

• The store did not match the original.
• The arguments or results did not match the signature.
• A trap occurred.

pub fn ty(&self) -> FuncType

Gets the type of this value.

pub fn typed<P: ComponentList, R: ComponentList>( &self, ) -> Result<TypedFunc<P, R>>

Converts this function to a TypedFunc, failing if the signatures do not match.

Trait Implementations

impl Clone for Func

fn clone(&self) -> Func

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Func

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

Formats the value using the given formatter.