Struct hdk::prelude::holochain_serialized_bytes::serde::ser::Impossible
source · [−]pub struct Impossible<Ok, Error> { /* private fields */ }
Expand description
Helper type for implementing a Serializer
that does not support
serializing one of the compound types.
This type cannot be instantiated, but implements every one of the traits
corresponding to the Serializer
compound types: SerializeSeq
,
SerializeTuple
, SerializeTupleStruct
, SerializeTupleVariant
,
SerializeMap
, SerializeStruct
, and SerializeStructVariant
.
ⓘ
impl Serializer for MySerializer {
type Ok = ();
type Error = Error;
type SerializeSeq = Impossible<(), Error>;
/* other associated types */
/// This data format does not support serializing sequences.
fn serialize_seq(self,
len: Option<usize>)
-> Result<Self::SerializeSeq, Error> {
// Given Impossible cannot be instantiated, the only
// thing we can do here is to return an error.
Err(...)
}
/* other Serializer methods */
}
Trait Implementations
Auto Trait Implementations
impl<Ok, Error> RefUnwindSafe for Impossible<Ok, Error> where
Error: RefUnwindSafe,
Ok: RefUnwindSafe,
impl<Ok, Error> Send for Impossible<Ok, Error> where
Error: Send,
Ok: Send,
impl<Ok, Error> Sync for Impossible<Ok, Error> where
Error: Sync,
Ok: Sync,
impl<Ok, Error> Unpin for Impossible<Ok, Error> where
Error: Unpin,
Ok: Unpin,
impl<Ok, Error> UnwindSafe for Impossible<Ok, Error> where
Error: UnwindSafe,
Ok: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
Notable traits for Instrumented<T>
impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
Notable traits for Instrumented<T>
impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
Notable traits for WithDispatch<T>
impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
Notable traits for WithDispatch<T>
impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more