Trait RecursiveVariadic

pub trait RecursiveVariadic {
    // Required methods
    fn get<N: Key>(&self) -> Option<&N::Value>;
    fn get_mut<N: Key>(&mut self) -> Option<&mut N::Value>;

    // Provided methods
    fn and<N: Key>(self, val: N::Value) -> Entry<N, Self>
       where Self: Sized { ... }
    fn and_default<N: Key>(self) -> Entry<N, Self>
       where N::Value: Default,
             Self: Sized { ... }
}

The building block trait for recursive variadics.

Required Methods

fn get<N: Key>(&self) -> Option<&N::Value>

Try to get the value for N.

fn get_mut<N: Key>(&mut self) -> Option<&mut N::Value>

Try to get the value for N mutably.

Provided Methods

fn and<N: Key>(self, val: N::Value) -> Entry<N, Self>

where Self: Sized,

Add a key-value pair to this.

fn and_default<N: Key>(self) -> Entry<N, Self>

where N::Value: Default, Self: Sized,

Add the default value for N

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

impl RecursiveVariadic for Empty

impl<T: Key, R: RecursiveVariadic> RecursiveVariadic for Entry<T, R>