Struct soroban_wasmi::FuncRef

pub struct FuncRef { /* private fields */ }

A nullable Func reference.

Implementations

impl FuncRef

pub fn is_null(&self) -> bool

Returns true if FuncRef is null.

pub fn new(nullable_func: impl Into<Option<Func>>) -> Self

Creates a new FuncRef.

Examples

assert!(FuncRef::new(None).is_null());
assert!(FuncRef::new(Func::wrap(&mut store, |x: i32| x)).func().is_some());

pub fn func(&self) -> Option<&Func>

Returns the inner Func if FuncRef is not null.

Otherwise returns None.

pub fn null() -> Self

Creates a null FuncRef.

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 Default for FuncRef

fn default() -> FuncRef

Returns the “default value” for a type.

impl From<Func> for FuncRef

fn from(func: Func) -> Self

Converts to this type from the input type.

impl From<FuncRef> for UntypedVal

fn from(funcref: FuncRef) -> Self

Converts to this type from the input type.

impl From<FuncRef> for Val

fn from(funcref: FuncRef) -> Self

Converts to this type from the input type.

impl From<UntypedVal> for FuncRef

fn from(untyped: UntypedVal) -> Self

Converts to this type from the input type.

impl Copy for FuncRef

impl WasmTy for FuncRef