Impossible

Struct Impossible 

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pub struct Impossible<Ok, Error> { /* private fields */ }
Expand description

A type usable in one of the associated types of Serializer when the data format does not support the data.

Trait Implementations§

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impl<Ok, Error> SerializeArray for Impossible<Ok, Error>
where Error: Error,

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type Ok = Ok

Must match the Ok type of any Serializer that uses this type.
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type Error = Error

Must match the Error type of any Serializer that uses this type.
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fn serialize_element<T>( &mut self, _: &T, ) -> Result<(), <Impossible<Ok, Error> as SerializeArray>::Error>
where T: Serialize + ?Sized,

Serialize an array element.
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fn end( self, ) -> Result<<Impossible<Ok, Error> as SerializeArray>::Ok, <Impossible<Ok, Error> as SerializeArray>::Error>

Consumes and finalizes the array serializer returning the Self::Ok data.
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impl<Ok, Error> SerializeNamedProduct for Impossible<Ok, Error>
where Error: Error,

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type Ok = Ok

Must match the Ok type of any Serializer that uses this type.
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type Error = Error

Must match the Error type of any Serializer that uses this type.
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fn serialize_element<T>( &mut self, _: Option<&str>, _: &T, ) -> Result<(), <Impossible<Ok, Error> as SerializeNamedProduct>::Error>
where T: Serialize + ?Sized,

Serialize a named product element with name.
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fn end( self, ) -> Result<<Impossible<Ok, Error> as SerializeNamedProduct>::Ok, <Impossible<Ok, Error> as SerializeNamedProduct>::Error>

Consumes and finalizes the product serializer returning the Self::Ok data.
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impl<Ok, Error> SerializeSeqProduct for Impossible<Ok, Error>
where Error: Error,

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type Ok = Ok

Must match the Ok type of any Serializer that uses this type.
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type Error = Error

Must match the Error type of any Serializer that uses this type.
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fn serialize_element<T>( &mut self, _: &T, ) -> Result<(), <Impossible<Ok, Error> as SerializeSeqProduct>::Error>
where T: Serialize + ?Sized,

Serialize an unnamed product element.
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fn end( self, ) -> Result<<Impossible<Ok, Error> as SerializeSeqProduct>::Ok, <Impossible<Ok, Error> as SerializeSeqProduct>::Error>

Consumes and finalizes the product serializer returning the Self::Ok data.

Auto Trait Implementations§

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impl<Ok, Error> Freeze for Impossible<Ok, Error>

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impl<Ok, Error> RefUnwindSafe for Impossible<Ok, Error>
where Ok: RefUnwindSafe, Error: RefUnwindSafe,

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impl<Ok, Error> Send for Impossible<Ok, Error>
where Ok: Send, Error: Send,

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impl<Ok, Error> Sync for Impossible<Ok, Error>
where Ok: Sync, Error: Sync,

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impl<Ok, Error> Unpin for Impossible<Ok, Error>
where Ok: Unpin, Error: Unpin,

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impl<Ok, Error> UnwindSafe for Impossible<Ok, Error>
where Ok: UnwindSafe, Error: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.