abi_stable 0.9.0

For doing Rust-to-Rust ffi,writing libraries loaded at program startup.
Documentation 
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/*!
Containst the `GetStaticEquivalent_` trait and related items.

*/

/// A type that stands in for `Self`,used to create a `UTypeId` for doing layout checking.
///
/// This may or may not have the same TypeId as Self.
pub unsafe trait GetStaticEquivalent_{
    type StaticEquivalent:'static;
}

/// Gets the `'static` equivalent of a type,only for use in creating a `UTypeId`.
pub type GetStaticEquivalent<T>=
    <T as GetStaticEquivalent_>::StaticEquivalent;

/// Used to avoid a `?Sized` bound on `GetStaticEquivalent_::StaticEquivalent`.
/// 
/// It's fine to use this instead of `str` and `[T]` since the type is 
/// only required to be unique.
pub struct Unsized<T:?Sized>(fn(&T));


////////////////////////////////////////////////////////////////////////////////
//                      Impls for non-StableAbi types
////////////////////////////////////////////////////////////////////////////////


unsafe impl GetStaticEquivalent_ for str{
    type StaticEquivalent=Unsized<str>;
}

unsafe impl<T> GetStaticEquivalent_ for [T]
where
    T:GetStaticEquivalent_
{
    type StaticEquivalent=Unsized<[T::StaticEquivalent]>;
}

unsafe impl<T:?Sized> GetStaticEquivalent_ for Unsized<T>
where
    T:GetStaticEquivalent_
{
    type StaticEquivalent=Unsized<T::StaticEquivalent>;
}