Struct Parts 

#[non_exhaustive]
pub struct Parts<T> {
    pub io: T,
    pub read_buf: Bytes,
    pub read_err: Option<Error>,
    pub extensions: Extensions,
    /* private fields */
}

Available on crate features http and std only.

The deconstructed parts of an Upgraded type.

Includes the original IO type, and a read buffer of bytes that the HTTP state machine may have already read before completing an upgrade.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

io: T

The original IO object used before the upgrade.

read_buf: Bytes

A buffer of bytes that have been read but not processed as HTTP.

For instance, if the Connection is used for an HTTP upgrade request, it is possible the server sent back the first bytes of the new protocol along with the response upgrade.

You will want to check for any existing bytes if you plan to continue communicating on the IO object.

read_err: Option<Error>

A read error the upgraded stream already hit on io.

It follows read_buf and comes before any further read of io, which may not report it again (some sockets report a reset only once).

extensions: Extensions

Extensions associated with this upgrade

Trait Implementations

impl<T> Debug for Parts<T>

where T: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.