Struct google_cloud_gax::grpc::Extensions

pub struct Extensions { /* private fields */ }

A type map of protocol extensions.

Extensions can be used by Interceptor and Request to store extra data derived from the underlying protocol.

Implementations

impl Extensions

pub fn insert<T>(&mut self, val: T) -> Option<T>where
    T: 'static + Send + Sync,

Insert a type into this Extensions.

If a extension of this type already existed, it will be returned.

pub fn get<T>(&self) -> Option<&T>where
    T: 'static + Send + Sync,

Get a reference to a type previously inserted on this Extensions.

pub fn get_mut<T>(&mut self) -> Option<&mut T>where
    T: 'static + Send + Sync,

Get a mutable reference to a type previously inserted on this Extensions.

pub fn remove<T>(&mut self) -> Option<T>where
    T: 'static + Send + Sync,

Remove a type from this Extensions.

If a extension of this type existed, it will be returned.

pub fn clear(&mut self)

Clear the Extensions of all inserted extensions.

pub fn into_http(self) -> Extensions

Convert to http::Extensions and consume self.

Trait Implementations

impl Debug for Extensions

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

Formats the value using the given formatter.

impl Default for Extensions

fn default() -> Extensions

Returns the “default value” for a type.