Struct Ref

pub struct Ref<'a, T: Type<T>>(/* private fields */);

A borrowed type with the same memory layout as the type itself that can be used to construct ABI-compatible function signatures.

Implementations

impl<T: Type<T>> Ref<'_, T>

pub fn is_null(&self) -> bool

Returns true if the argument is null.

pub fn ok(&self) -> Result<&T>

Converts the argument to a Result<&T> reference.

pub fn as_ref(&self) -> Option<&T>

Converts the argument to a Option<&T> reference.

pub fn unwrap(&self) -> &T

Converts the argument to a &T reference.

Panics

Panics if the argument is null.

pub fn cloned(&self) -> Option<T>

Converts the argument to an Option<T> by cloning the reference.

Trait Implementations

impl<T: Type<T>> Deref for Ref<'_, T>

type Target = <T as Type<T>>::Default

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, T: Type<T>> From<&'a <T as Type<T>>::Default> for Ref<'a, T>

fn from(from: &'a T::Default) -> Self

Converts to this type from the input type.