Struct Infallible 

pub struct Infallible(/* private fields */);

serde::Serialize-carrying wrapper around core::convert::Infallible.

Recommended choice for Service::ReplyError and Service::ReplyStreamError when the corresponding methods cannot fail. The service macro also picks it for Service::ReplyStreamError when no streaming method declares an error type.

It exists because of serde-rs/serde#2740: core::convert::Infallible has no Serialize impl in serde, which makes it unusable for trait associated types bounded by Serialize. This wrapper carries the missing impl. The inner core::convert::Infallible cannot be constructed, so neither can this — the Serialize impl is statically unreachable.

Once serde lands a built-in Serialize impl for Infallible, this wrapper will be deprecated in favor of core::convert::Infallible.

Trait Implementations

impl Debug for Infallible

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

Formats the value using the given formatter.

impl Serialize for Infallible

fn serialize<S: Serializer>(&self, _serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.