Trait otter_nodejs_tests::cast_trait_object::DynCastExtHelper

pub trait DynCastExtHelper<T> where
    T: ?Sized, {
    type Target;
    type Source;
    type Config;

    fn _dyn_cast(self) -> Result<Self::Target, Self::Source>;
}

Used to implement DynCastExt.

Required Associated Types

type Target

The wanted trait object that is returned if the cast succeeded.

type Source

The original trait object that is returned if the cast failed.

type Config

The DynCastConfig that is used to preform the conversion.

Required Methods

fn _dyn_cast(self) -> Result<Self::Target, Self::Source>

This method is used to cast from one trait object type to another.

Implementations on Foreign Types

impl<'a, T, F> DynCastExtHelper<T> for &'a mut F where
    T: 'static + ?Sized,
    F: 'static + DynCast<<F as GetDynCastConfig<T>>::Config> + GetDynCastConfig<T> + ?Sized, 

type Target = &'a mut T

type Source = &'a mut F

type Config = <F as GetDynCastConfig<T>>::Config

fn _dyn_cast(
    self
) -> Result<<&'a mut F as DynCastExtHelper<T>>::Target, <&'a mut F as DynCastExtHelper<T>>::Source>

impl<'a, T, F> DynCastExtHelper<T> for Box<F, Global> where
    T: 'static + ?Sized,
    F: 'static + DynCast<<F as GetDynCastConfig<T>>::Config> + GetDynCastConfig<T> + ?Sized, 

type Target = Box<T, Global>

type Source = Box<F, Global>

type Config = <F as GetDynCastConfig<T>>::Config

fn _dyn_cast(
    self
) -> Result<<Box<F, Global> as DynCastExtHelper<T>>::Target, <Box<F, Global> as DynCastExtHelper<T>>::Source>

impl<'a, T, F> DynCastExtHelper<T> for &'a F where
    T: 'static + ?Sized,
    F: 'static + DynCast<<F as GetDynCastConfig<T>>::Config> + GetDynCastConfig<T> + ?Sized, 

type Target = &'a T

type Source = &'a F

type Config = <F as GetDynCastConfig<T>>::Config

fn _dyn_cast(
    self
) -> Result<<&'a F as DynCastExtHelper<T>>::Target, <&'a F as DynCastExtHelper<T>>::Source>

impl<'a, T, F> DynCastExtHelper<T> for Rc<F> where
    T: 'static + ?Sized,
    F: 'static + DynCast<<F as GetDynCastConfig<T>>::Config> + GetDynCastConfig<T> + ?Sized, 

type Target = Rc<T>

type Source = Rc<F>

type Config = <F as GetDynCastConfig<T>>::Config

fn _dyn_cast(
    self
) -> Result<<Rc<F> as DynCastExtHelper<T>>::Target, <Rc<F> as DynCastExtHelper<T>>::Source>

Implementors

impl<'a, T, F> DynCastExtHelper<T> for Arc<F> where
    T: 'static + ?Sized,
    F: 'static + DynCast<<F as GetDynCastConfig<T>>::Config> + GetDynCastConfig<T> + ?Sized, 

type Target = Arc<T>

type Source = Arc<F>

type Config = <F as GetDynCastConfig<T>>::Config