Trait ExecDuplex 

pub trait ExecDuplex:
    AsyncRead
    + AsyncWrite
    + Send
    + Unpin { }

Marker supertrait combining AsyncRead + AsyncWrite so they can be used together as a single trait object. Rust forbids stacking two non-auto traits directly in dyn, so ExecPtyStream is built on top of this helper instead.

A blanket impl below covers every type that already satisfies the four component bounds, so callers never need to implement ExecDuplex manually — they just hand the runtime any concrete duplex stream that’s AsyncRead + AsyncWrite + Send + Unpin.

Implementors

impl<T> ExecDuplex for T

where T: AsyncRead + AsyncWrite + Send + Unpin + ?Sized,