trustfall_core 0.8.1

The trustfall query engine, empowering you to query everything.
Documentation 
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use std::sync::Arc;

use serde::{Deserialize, Serialize};

use crate::{
    interpreter::{
        Adapter, AsVertex, ContextIterator, ContextOutcomeIterator, ResolveEdgeInfo, ResolveInfo,
        VertexIterator,
    },
    ir::{EdgeParameters, FieldValue},
};

#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct NullablesVertex;

#[derive(Debug, Clone)]
pub struct NullablesAdapter;

#[allow(unused_variables)]
impl<'a> Adapter<'a> for NullablesAdapter {
    type Vertex = NullablesVertex;

    fn resolve_starting_vertices(
        &self,
        edge_name: &Arc<str>,
        parameters: &EdgeParameters,
        resolve_info: &ResolveInfo,
    ) -> VertexIterator<'a, Self::Vertex> {
        Box::new(std::iter::empty())
    }

    fn resolve_property<V: AsVertex<Self::Vertex> + 'a>(
        &self,
        contexts: ContextIterator<'a, V>,
        type_name: &Arc<str>,
        property_name: &Arc<str>,
        resolve_info: &ResolveInfo,
    ) -> ContextOutcomeIterator<'a, V, FieldValue> {
        unimplemented!()
    }

    fn resolve_neighbors<V: AsVertex<Self::Vertex> + 'a>(
        &self,
        contexts: ContextIterator<'a, V>,
        type_name: &Arc<str>,
        edge_name: &Arc<str>,
        parameters: &EdgeParameters,
        resolve_info: &ResolveEdgeInfo,
    ) -> ContextOutcomeIterator<'a, V, VertexIterator<'a, Self::Vertex>> {
        unimplemented!()
    }

    fn resolve_coercion<V: AsVertex<Self::Vertex> + 'a>(
        &self,
        contexts: ContextIterator<'a, V>,
        type_name: &Arc<str>,
        coerce_to_type: &Arc<str>,
        resolve_info: &ResolveInfo,
    ) -> ContextOutcomeIterator<'a, V, bool> {
        unimplemented!()
    }
}