Trait spacetimedb_sats::de::VariantVisitor

pub trait VariantVisitor {
    type Output;

    // Required methods
    fn variant_names(&self, names: &mut dyn ValidNames);
    fn visit_tag<E: Error>(self, tag: u8) -> Result<Self::Output, E>;
    fn visit_name<E: Error>(self, name: &str) -> Result<Self::Output, E>;
}

A visitor passed from SumVisitor to SumAccess::variant which the latter uses to decide what variant to deserialize.

Required Associated Types

type Output

The result of identifying a variant, e.g., some index type.

Required Methods

fn variant_names(&self, names: &mut dyn ValidNames)

Provides the visitor the chance to add valid names into names.

fn visit_tag<E: Error>(self, tag: u8) -> Result<Self::Output, E>

Identify the variant based on tag.

fn visit_name<E: Error>(self, name: &str) -> Result<Self::Output, E>

Identify the variant based on name.

Object Safety

This trait is not object safe.

Implementors

impl VariantVisitor for WithTypespace<'_, SumType>

type Output = u8