Trait cffi::ToForeign

pub trait ToForeign<Local, Foreign>: Sized {
    type Error;
    fn to_foreign(_: Local) -> Result<Foreign, Self::Error>;
}

Associated Types

type Error

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Required methods

fn to_foreign(_: Local) -> Result<Foreign, Self::Error>

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Implementors

impl ToForeign<Option<String>, Slice<u8>> for StringMarshaler

type Error = Box<dyn Error>

fn to_foreign(option: Option<String>) -> Result<Slice<u8>, Self::Error>

impl ToForeign<Result<String, Box<dyn Error + 'static>>, Slice<u8>> for StringMarshaler

type Error = Box<dyn Error>

fn to_foreign(
    result: Result<String, Box<dyn Error>>
) -> Result<Slice<u8>, Self::Error>

impl ToForeign<bool, u8> for BoolMarshaler

type Error = Infallible

fn to_foreign(b: bool) -> Result<u8, Self::Error>

impl ToForeign<String, Slice<u8>> for StringMarshaler

type Error = Infallible

fn to_foreign(string: String) -> Result<Slice<u8>, Self::Error>

impl ToForeign<PathBuf, Slice<u8>> for PathBufMarshaler

type Error = Infallible

fn to_foreign(input: PathBuf) -> Result<Slice<u8>, Self::Error>

impl<'a> ToForeign<&'a str, Slice<u8>> for StrMarshaler<'a>

type Error = Box<dyn Error>

fn to_foreign(input: &'a str) -> Result<Slice<u8>, Self::Error>

impl<E> ToForeign<Result<(), E>, ()> for UnitMarshaler

type Error = E

fn to_foreign(local: Result<(), E>) -> Result<(), Self::Error>

impl<E> ToForeign<Result<PathBuf, E>, Slice<u8>> for PathBufMarshaler

type Error = E

fn to_foreign(input: Result<PathBuf, E>) -> Result<Slice<u8>, Self::Error>

impl<T> ToForeign<Box<T>, *const T> for BoxMarshaler<T>

type Error = Infallible

fn to_foreign(local: Box<T>) -> Result<*const T, Self::Error>

impl<T> ToForeign<Arc<T>, *const T> for ArcMarshaler<T>

type Error = Infallible

fn to_foreign(local: Arc<T>) -> Result<*const T, Self::Error>

impl<T> ToForeign<Vec<T>, Slice<T>> for VecMarshaler<T>

type Error = Infallible

fn to_foreign(vec: Vec<T>) -> Result<Slice<T>, Self::Error>

impl<T: Copy> ToForeign<T, T> for CopyMarshaler<T>

type Error = Infallible

fn to_foreign(x: T) -> Result<T, Self::Error>

impl<T: ?Sized> ToForeign<Result<Box<T>, Box<dyn Error + 'static>>, *const T> for BoxMarshaler<T>

type Error = Box<dyn Error>

fn to_foreign(
    local: Result<Box<T>, Box<dyn Error>>
) -> Result<*const T, Self::Error>

impl<T: ?Sized> ToForeign<Result<Arc<T>, Box<dyn Error + 'static>>, *const T> for ArcMarshaler<T>

type Error = Box<dyn Error>

fn to_foreign(
    local: Result<Arc<T>, Box<dyn Error>>
) -> Result<*const T, Self::Error>

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