Struct Func 

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

A Wasm function.

A Func is either a Wasm function or a host function.

Implementations

impl Func

pub fn wrap<Ts, U>(store: &mut Store, f: impl IntoFunc<Ts, U>) -> Self

Creates a new host function that wraps the given closure.

pub fn type_(self, store: &Store) -> &FuncType

Returns the FuncType of this Func.

pub fn call( self, store: &mut Store, args: &[Val], results: &mut [Val], ) -> Result<(), Error>

Calls this Func with the given arguments.

The results are written to the results slice.

Errors

• If the argument count does not match the expected parameter count.
• If the actual result count does not match the expected result count.
• If the argument types do not match the expected parameter types.

Trait Implementations

impl Clone for Func

fn clone(&self) -> Func

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Func

impl Debug for Func

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

Formats the value using the given formatter.

impl Eq for Func

impl From<Func> for ExternVal

fn from(func: Func) -> Self

Converts to this type from the input type.

impl From<Func> for FuncRef

fn from(func: Func) -> Self

Converts to this type from the input type.

impl Hash for Func

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Func

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

impl StructuralPartialEq for Func