Struct MessageMetaJson 

pub struct MessageMetaJson<T>(pub T);

Extracts a JSON-serializable type from a message frame’s meta.

Tuple Fields

0: T

Trait Implementations

impl<T: Clone> Clone for MessageMetaJson<T>

fn clone(&self) -> MessageMetaJson<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for MessageMetaJson<T>

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

Formats the value using the given formatter.

impl<T, State> Extractor<State> for MessageMetaJson<T>

where T: DeserializeOwned,

type Error = MessageFrameError

The error type for this extractor. Anything that can be converted into an extractor error can be used as an error type.

fn extract(frame: Frame, context: &Context<State>) -> Result<Self, Self::Error>

where Self: Sized,

Take an frame and a state and return a result containing the extracted value or the frame.

fn extract_from_frame_and_state( frame: Frame, context: &Context<State>, ) -> Result<Self>

where Self: Sized, Self::Error: Into<ExtractorError>,

Extract a value from a frame and state, returning a result containing the extracted value or an error coerced into a crate::Error.

impl<T: PartialEq> PartialEq for MessageMetaJson<T>

fn eq(&self, other: &MessageMetaJson<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Eq> Eq for MessageMetaJson<T>

impl<T> StructuralPartialEq for MessageMetaJson<T>