Trait AssocVisitor

pub trait AssocVisitor: Sized + Sealed {
    type Result;

    // Required methods
    fn visit_entry<K: Display, V: Display>(
        &mut self,
        key: K,
        value: V,
    ) -> ControlFlow<Self::Result>;
    fn finish(self) -> Self::Result;

    // Provided method
    fn visit_entries_and_finish<K, V, I>(self, entries: I) -> Self::Result
       where K: Display,
             V: Display,
             I: IntoIterator<Item = (K, V)> { ... }
}

Associative array visitor.

See the module documentation for usage.

Required Associated Types

type Result

Result of the visit.

Required Methods

fn visit_entry<K: Display, V: Display>( &mut self, key: K, value: V, ) -> ControlFlow<Self::Result>

Visits an entry.

If this returned ControlFlow::Break(v), Context::visit should also return this v.

To feed multiple items at once, do entries.into_iter().try_for_each(|(key, value)| self.visit_entry(key, value)) for example.

fn finish(self) -> Self::Result

Finishes visiting the associative array.

Provided Methods

fn visit_entries_and_finish<K, V, I>(self, entries: I) -> Self::Result

where K: Display, V: Display, I: IntoIterator<Item = (K, V)>,

Visits entries and finish.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors