Trait serde::de::SeqVisitor [−] [src]

pub trait SeqVisitor {
    type Error: Error;
    fn visit<T>(&mut self) -> Result<Option<T>, Self::Error> where T: Deserialize;
    fn end(&mut self) -> Result<(), Self::Error>;

    fn size_hint(&self) -> (usize, Option<usize>) { ... }
}

SeqVisitor visits each item in a sequence.

This is a trait that a Deserializer passes to a Visitor implementation, which deserializes each item in a sequence.

Associated Types

`type Error: Error`

The error type that can be returned if some error occurs during deserialization.

Required Methods

`fn visit<T>(&mut self) -> Result<Option<T>, Self::Error> where T: Deserialize`

This returns a Ok(Some(value)) for the next value in the sequence, or Ok(None) if there are no more remaining items.

`fn end(&mut self) -> Result<(), Self::Error>`

This signals to the SeqVisitor that the Visitor does not expect any more items.

Provided Methods

`fn size_hint(&self) -> (usize, Option<usize>)`

Return the lower and upper bound of items remaining in the sequence.

Implementors

impl<I, T, E> SeqVisitor for SeqDeserializer<I, E> where I: Iterator<Item=T>, T: ValueDeserializer<E>, E: Error
impl<I, K, V, E> SeqVisitor for MapDeserializer<I, K, V, E> where I: Iterator<Item=(K, V)>, K: ValueDeserializer<E>, V: ValueDeserializer<E>, E: Error
impl<'a, V> SeqVisitor for &'a mut V where V: SeqVisitor