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