Method bound_node_names

nodedb/src/engine/graph/pattern/ast.rs:213–232

Get all unique node variable names bound in the query.

(&self)

impl MatchQuery {
    /// Get all unique node variable names bound in the query.
    pub fn bound_node_names(&self) -> Vec<String> {
        let mut names = Vec::new();
        for clause in &self.clauses {
            for chain in &clause.patterns {
                for triple in &chain.triples {
                    if let Some(ref n) = triple.src.name
                        && !names.contains(n)
                    {
                        names.push(n.clone());
                    }
                    if let Some(ref n) = triple.dst.name
                        && !names.contains(n)
                    {
                        names.push(n.clone());
                    }
                }
            }
        }
        names
    }

    /// Get all unique edge variable names bound in the query.
    pub fn bound_edge_names(&self) -> Vec<String> {