Trait value_trait::derived::ValueObjectAccess

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pub trait ValueObjectAccess {
    type Key: ?Sized;
    type Target;

    // Required methods
    fn get<Q>(&self, k: &Q) -> Option<&Self::Target>
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: ?Sized + Hash + Eq + Ord;
    fn contains_key<Q>(&self, k: &Q) -> bool
       where Self::Key: Borrow<Q> + Hash + Eq,
             Q: ?Sized + Hash + Eq + Ord;
}
Expand description

Access to a value as an object

Required Associated Types§

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type Key: ?Sized

The type for Objects

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type Target

The target for nested lookups

Required Methods§

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fn get<Q>(&self, k: &Q) -> Option<&Self::Target>
where Self::Key: Borrow<Q> + Hash + Eq, Q: ?Sized + Hash + Eq + Ord,

Gets a ref to a value based on a key, returns None if the current Value isn’t an Object or doesn’t contain the key it was asked for.

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fn contains_key<Q>(&self, k: &Q) -> bool
where Self::Key: Borrow<Q> + Hash + Eq, Q: ?Sized + Hash + Eq + Ord,

Checks if a Value contains a given key. This will return flase if Value isn’t an object

Object Safety§

This trait is not object safe.

Implementors§