Trait MetaAny 

pub unsafe trait MetaAny {
    // Required methods
    fn as_erased(&self) -> ErasedInner<'_>;
    fn as_erased_mut(&mut self) -> ErasedInnerMut<'_>;
    fn as_erased_ptr(&self) -> ErasedInnerPtr<'_>;
}

A dyn compatible alternative to Any that can contain multiple items.

Safety

This trait cannot return overlapping references for different types.

For example

struct A{
    b: B,
    c: C,
}

The implementation can return A, or (B, C) but not both.

Required Methods

fn as_erased(&self) -> ErasedInner<'_>

fn as_erased_mut(&mut self) -> ErasedInnerMut<'_>

fn as_erased_ptr(&self) -> ErasedInnerPtr<'_>

Implementations

impl dyn MetaAny + '_

pub fn get<T: 'static>(&self) -> Option<&T>

Obtain an item if it exists in the MetaAny.

Always returns Some for ().

pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T>

Obtain an item if it exists in the MetaAny.

Always returns Some for ().

impl dyn MetaAny + '_

pub fn get_ptr<T: 'static>(&self) -> Option<*mut T>

Obtain an item if it exists in the MetaAny.

Always returns Some for ().

Implementations on Foreign Types

impl MetaAny for ()

fn as_erased<'t>(&self) -> ErasedInner<'_>

fn as_erased_mut(&mut self) -> ErasedInnerMut<'_>

fn as_erased_ptr(&self) -> ErasedInnerPtr<'_>

impl<T: 'static> MetaAny for Option<T>

fn as_erased<'t>(&self) -> ErasedInner<'_>

fn as_erased_mut(&mut self) -> ErasedInnerMut<'_>

fn as_erased_ptr(&self) -> ErasedInnerPtr<'_>

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

fn as_erased<'t>(&self) -> ErasedInner<'_>

fn as_erased_mut(&mut self) -> ErasedInnerMut<'_>

fn as_erased_ptr(&self) -> ErasedInnerPtr<'_>

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

fn as_erased<'t>(&self) -> ErasedInner<'_>

fn as_erased_mut(&mut self) -> ErasedInnerMut<'_>

fn as_erased_ptr(&self) -> ErasedInnerPtr<'_>

Implementors

impl MetaAny for DynMetaTuple

impl<A: MetaTuple, B: MetaTuple> MetaAny for Join<A, B>

impl<T: 'static> MetaAny for MetaItem<T>