kmip-ttlv 0.3.5

//! Dynamic traits for sync or async use depending on the Cargo features used.
//!
//! By default the [AnySyncRead] trait is equivalent to `std::io::Read`.
//!
//! However, if this crate is built with either the `async-with-async-std` or `async-with-tokio` feature enabled then
//! this trait instead becomes `async_std::io::ReadExt` or `tokio::io::AsyncReadExt` respectively.
//!
//! This enables code that is otherwise identical to be re-used.

cfg_if::cfg_if! {
    if #[cfg(feature = "sync")] {
        trait_set::trait_set! {
            pub trait AnySyncRead = std::io::Read;
        }
    } else if #[cfg(feature = "async-with-tokio")] {
        trait_set::trait_set! {
            pub trait AnySyncRead = tokio::io::AsyncReadExt + std::marker::Unpin;
        }
    } else if #[cfg(feature = "async-with-async-std")] {
        trait_set::trait_set! {
            pub trait AnySyncRead = async_std::io::ReadExt + std::marker::Unpin;
        }
    }
}