Trait json_ld::IntoId

source · [−]
pub trait IntoId<T, B> {
    type Id: Borrow<Id<T, B>>;

    fn to_ref(self) -> Self::Id;
}
Expand description

Types that can be converted into a borrowed node reference.

This is a convenient trait is used to simplify the use of references. For instance consider the Node::get method, used to get the objects associated to the given reference property for a given node. It essentially have the following signature:

ⓘ
fn get(&self, id: &Id<T, B>) -> Objects;

However building a Id by hand can be tedious, especially while using Lexicon and Vocab. It can be as verbose as node.get(&Id::Id(Lexicon::Id(MyVocab::Term))). Thanks to IntoId which is implemented by Lexicon<V> for any type V implementing Vocab, it is simplified into node.get(MyVocab::Term) (while the first syntax remains correct). The signature of get becomes:

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fn get<R: IntoId<T>>(self, id: R) -> Objects;

Required Associated Types

The target type of the conversion, which can be borrowed as a Id<T, B>.

Required Methods

Convert the value into a reference.

Implementors