Trait MapLike 

pub trait MapLike: Sized {
    // Required methods
    fn new() -> Self;
    fn get(&self, key: &u64) -> Option<&(NanValue, NanValue)>;
    fn insert(&self, key: u64, value: (NanValue, NanValue)) -> Self;
    fn len(&self) -> usize;
    fn iter(&self) -> impl Iterator<Item = (&u64, &(NanValue, NanValue))>;
    fn values(&self) -> impl Iterator<Item = &(NanValue, NanValue)>;

    // Provided methods
    fn insert_owned(self, key: u64, value: (NanValue, NanValue)) -> Self { ... }
    fn is_empty(&self) -> bool { ... }
}

Trait abstracting the persistent-map operations needed by the arena.

Implementors provide a hash-keyed map from u64 to (NanValue, NanValue).

Required Methods

fn new() -> Self

fn get(&self, key: &u64) -> Option<&(NanValue, NanValue)>

fn insert(&self, key: u64, value: (NanValue, NanValue)) -> Self

fn len(&self) -> usize

fn iter(&self) -> impl Iterator<Item = (&u64, &(NanValue, NanValue))>

fn values(&self) -> impl Iterator<Item = &(NanValue, NanValue)>

Provided Methods

fn insert_owned(self, key: u64, value: (NanValue, NanValue)) -> Self

Insert with owned self — avoids clone when sole owner.

fn is_empty(&self) -> bool

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 MapLike for PersistentMap

Available on non-crate feature runtime only.