Struct otter_api_tests::imports::otter_base::imports::serde::ser::Impossible [−][src]
pub struct Impossible<Ok, Error> { /* fields omitted */ }
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
impl<Ok, Error> SerializeMap for Impossible<Ok, Error> where
Error: Error,
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Error: Error,
type Ok = Ok
Must match the Ok
type of our Serializer
.
type Error = Error
Must match the Error
type of our Serializer
.
pub fn serialize_key<T>(&mut self, key: &T) -> Result<(), Error> where
T: Serialize + ?Sized,
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T: Serialize + ?Sized,
pub fn serialize_value<T>(&mut self, value: &T) -> Result<(), Error> where
T: Serialize + ?Sized,
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T: Serialize + ?Sized,
pub fn end(self) -> Result<Ok, Error>
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pub fn serialize_entry<K, V>(
&mut self,
key: &K,
value: &V
) -> Result<(), Self::Error> where
K: Serialize + ?Sized,
V: Serialize + ?Sized,
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&mut self,
key: &K,
value: &V
) -> Result<(), Self::Error> where
K: Serialize + ?Sized,
V: Serialize + ?Sized,
impl<Ok, Error> SerializeSeq for Impossible<Ok, Error> where
Error: Error,
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Error: Error,
type Ok = Ok
Must match the Ok
type of our Serializer
.
type Error = Error
Must match the Error
type of our Serializer
.
pub fn serialize_element<T>(&mut self, value: &T) -> Result<(), Error> where
T: Serialize + ?Sized,
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T: Serialize + ?Sized,
pub fn end(self) -> Result<Ok, Error>
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impl<Ok, Error> SerializeStruct for Impossible<Ok, Error> where
Error: Error,
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Error: Error,
type Ok = Ok
Must match the Ok
type of our Serializer
.
type Error = Error
Must match the Error
type of our Serializer
.
pub fn serialize_field<T>(
&mut self,
key: &'static str,
value: &T
) -> Result<(), Error> where
T: Serialize + ?Sized,
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&mut self,
key: &'static str,
value: &T
) -> Result<(), Error> where
T: Serialize + ?Sized,
pub fn end(self) -> Result<Ok, Error>
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pub fn skip_field(&mut self, key: &'static str) -> Result<(), Self::Error>
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impl<Ok, Error> SerializeStructVariant for Impossible<Ok, Error> where
Error: Error,
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Error: Error,
type Ok = Ok
Must match the Ok
type of our Serializer
.
type Error = Error
Must match the Error
type of our Serializer
.
pub fn serialize_field<T>(
&mut self,
key: &'static str,
value: &T
) -> Result<(), Error> where
T: Serialize + ?Sized,
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&mut self,
key: &'static str,
value: &T
) -> Result<(), Error> where
T: Serialize + ?Sized,
pub fn end(self) -> Result<Ok, Error>
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pub fn skip_field(&mut self, key: &'static str) -> Result<(), Self::Error>
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impl<Ok, Error> SerializeTuple for Impossible<Ok, Error> where
Error: Error,
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Error: Error,
type Ok = Ok
Must match the Ok
type of our Serializer
.
type Error = Error
Must match the Error
type of our Serializer
.
pub fn serialize_element<T>(&mut self, value: &T) -> Result<(), Error> where
T: Serialize + ?Sized,
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T: Serialize + ?Sized,
pub fn end(self) -> Result<Ok, Error>
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impl<Ok, Error> SerializeTupleStruct for Impossible<Ok, Error> where
Error: Error,
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Error: Error,
type Ok = Ok
Must match the Ok
type of our Serializer
.
type Error = Error
Must match the Error
type of our Serializer
.
pub fn serialize_field<T>(&mut self, value: &T) -> Result<(), Error> where
T: Serialize + ?Sized,
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T: Serialize + ?Sized,
pub fn end(self) -> Result<Ok, Error>
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impl<Ok, Error> SerializeTupleVariant for Impossible<Ok, Error> where
Error: Error,
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Error: Error,
Auto Trait Implementations
impl<Ok, Error> RefUnwindSafe for Impossible<Ok, Error> where
Error: RefUnwindSafe,
Ok: RefUnwindSafe,
Error: RefUnwindSafe,
Ok: RefUnwindSafe,
impl<Ok, Error> Send for Impossible<Ok, Error> where
Error: Send,
Ok: Send,
Error: Send,
Ok: Send,
impl<Ok, Error> Sync for Impossible<Ok, Error> where
Error: Sync,
Ok: Sync,
Error: Sync,
Ok: Sync,
impl<Ok, Error> Unpin for Impossible<Ok, Error> where
Error: Unpin,
Ok: Unpin,
Error: Unpin,
Ok: Unpin,
impl<Ok, Error> UnwindSafe for Impossible<Ok, Error> where
Error: UnwindSafe,
Ok: UnwindSafe,
Error: UnwindSafe,
Ok: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow(&self) -> &TⓘNotable traits for &'_ mut R
impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;
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Notable traits for &'_ mut R
impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut R
impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;
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Notable traits for &'_ mut R
impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;
impl<T> Downcast for T where
T: Any,
T: Any,
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>
impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<F, A> Future for Box<F, A> where
A: Allocator + 'static,
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
A: Allocator,
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;
Notable traits for Box<R, Global>
impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<F, A> Future for Box<F, A> where
A: Allocator + 'static,
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
A: Allocator,
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn as_any(&self) -> &(dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
impl<T> DowncastSync for T where
T: Any + Send + Sync,
T: Any + Send + Sync,
impl<A> DynCastExt for A
pub fn dyn_cast<T>(
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
T: ?Sized,
A: DynCastExtHelper<T>,
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
T: ?Sized,
A: DynCastExtHelper<T>,
pub fn dyn_upcast<T>(self) -> <A as DynCastExtAdvHelper<T, T>>::Target where
T: ?Sized,
A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
T: ?Sized,
A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
pub fn dyn_cast_adv<F, T>(
self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
T: ?Sized,
A: DynCastExtAdvHelper<F, T>,
F: ?Sized,
self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
T: ?Sized,
A: DynCastExtAdvHelper<F, T>,
F: ?Sized,
pub fn dyn_cast_with_config<C>(
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
C: DynCastConfig,
A: DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>,
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
C: DynCastConfig,
A: DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,