rdfx 0.23.2

RDF 1.2 data-structures, traits and utilities: terms (incl. triple terms), triples, quads, interpretations, graphs, datasets, unstar/restar reification helpers.
Documentation 
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use crate::{
    Interpretation,
    Literal,
    LiteralRef,
    vocabulary::{LiteralVocabulary, LiteralVocabularyMut},
};

/// Literal value interpretation.
pub trait LiteralInterpretation<L>: Interpretation {
    /// Returns the interpretation of the given literal value, if any.
    fn literal_interpretation(&self, literal: &L) -> Option<Self::Resource>;

    fn lexical_literal_interpretation<V: LiteralVocabulary<Literal = L>>(&self, vocabulary: &V, literal: LiteralRef<'_>) -> Option<Self::Resource> {
        vocabulary.get_literal(literal).and_then(|l| self.literal_interpretation(&l))
    }
}

impl<L, T: LiteralInterpretation<L>> LiteralInterpretation<L> for &T {
    fn literal_interpretation(&self, literal: &L) -> Option<Self::Resource> {
        T::literal_interpretation(*self, literal)
    }

    fn lexical_literal_interpretation<V: LiteralVocabulary<Literal = L>>(&self, vocabulary: &V, literal: LiteralRef<'_>) -> Option<Self::Resource> {
        T::lexical_literal_interpretation(*self, vocabulary, literal)
    }
}

impl<L, T: LiteralInterpretation<L>> LiteralInterpretation<L> for &mut T {
    fn literal_interpretation(&self, literal: &L) -> Option<Self::Resource> {
        T::literal_interpretation(*self, literal)
    }

    fn lexical_literal_interpretation<V: LiteralVocabulary<Literal = L>>(&self, vocabulary: &V, literal: LiteralRef<'_>) -> Option<Self::Resource> {
        T::lexical_literal_interpretation(*self, vocabulary, literal)
    }
}

/// Mutable literal value interpretation.
pub trait LiteralInterpretationMut<L = Literal>: Interpretation {
    /// Interprets the given literal value.
    fn interpret_literal(&mut self, literal: L) -> Self::Resource;

    fn interpret_lexical_literal<V: LiteralVocabularyMut<Literal = L>>(&mut self, vocabulary: &mut V, literal: LiteralRef<'_>) -> Self::Resource {
        self.interpret_literal(vocabulary.insert_literal(literal))
    }

    fn interpret_owned_lexical_literal<V: LiteralVocabularyMut<Literal = L>>(&mut self, vocabulary: &mut V, literal: Literal) -> Self::Resource {
        self.interpret_literal(vocabulary.insert_owned_literal(literal))
    }
}

pub trait ReverseLiteralInterpretation: Interpretation {
    type Literal;

    type Literals<'a>: Clone + Iterator<Item = &'a Self::Literal>
    where
        Self: 'a;

    fn literals_of<'a>(&'a self, id: &'a Self::Resource) -> Self::Literals<'a>;
}

impl<T: ReverseLiteralInterpretation> ReverseLiteralInterpretation for &T {
    type Literal = T::Literal;
    type Literals<'a>
        = T::Literals<'a>
    where
        Self: 'a;

    fn literals_of<'a>(&'a self, id: &'a Self::Resource) -> Self::Literals<'a> {
        T::literals_of(*self, id)
    }
}

impl<T: ReverseLiteralInterpretation> ReverseLiteralInterpretation for &mut T {
    type Literal = T::Literal;
    type Literals<'a>
        = T::Literals<'a>
    where
        Self: 'a;

    fn literals_of<'a>(&'a self, id: &'a Self::Resource) -> Self::Literals<'a> {
        T::literals_of(*self, id)
    }
}