Trait Value 

pub trait Value {
    // Required method
    fn ref_any(&self) -> Option<&dyn Any>;
}

A value in a Values collection.

This is dyn Any, Option<dyn Any>, or a reference to either.

Required Methods

fn ref_any(&self) -> Option<&dyn Any>

Returns a reference to this value unless it is None.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Value for dyn Any

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for &T

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for &mut T

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for Arc<T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for Box<T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for MutexGuard<'_, T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for Rc<T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for Ref<'_, T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for RefMut<'_, T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for RwLockReadGuard<'_, T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value + ?Sized> Value for RwLockWriteGuard<'_, T>

fn ref_any(&self) -> Option<&dyn Any>

impl<T: Value> Value for Option<T>

fn ref_any(&self) -> Option<&dyn Any>

Implementors