fn resolve_order(
    condition_node: &ConditionNode,
    node_order: &mut Vec<ConditionParseTree>,
    condition_tracker: &HashMap<String, ConditionNode>,
) {
    if !node_order.contains(&condition_node.condition) {
        condition_node.uses.iter().for_each(|node_id| {
            let node = condition_tracker.get(node_id).unwrap();
            resolve_order(node, node_order, condition_tracker);
        });
        if !node_order.contains(&condition_node.condition) {
            node_order.push(condition_node.condition.clone());
        }
        condition_node.used_by.iter().for_each(|node_id| {
            let node = condition_tracker.get(node_id).unwrap();
            resolve_order(node, node_order, condition_tracker);
        });
    }
}
/**
 * Derive an ordering of conditions that ensure all dependency conditions are declared before
 * conditions that use them.
 */
Derive an ordering of conditions that ensure all dependency conditions are declared before
conditions that use them.
Derive an ordering of conditions that ensure all dependency conditions are declared before conditions that use them .
fn resolve_order(
    condition_node: &ConditionNode,
    node_order: &mut Vec<ConditionParseTree>,
    condition_tracker: &HashMap<String, ConditionNode>,
) {
    if !node_order.contains(&condition_node.condition) {
        condition_node.uses.iter().for_each(|node_id| {
            let node = condition_tracker.get(node_id).unwrap();
            resolve_order(node, node_order, condition_tracker);
        });
        if !node_order.contains(&condition_node.condition) {
            node_order.push(condition_node.condition.clone());
        }
        condition_node.used_by.iter().for_each(|node_id| {
            let node = condition_tracker.get(node_id).unwrap();
            resolve_order(node, node_order, condition_tracker);
        });
    }
}
fn resolve_order ( condition_node : & ConditionNode , node_order : & mut Vec < ConditionParseTree > , condition_tracker : & HashMap < String , ConditionNode > , ) { if ! node_order . contains ( & condition_node . condition ) { condition_node . uses . iter ( ) . for_each ( | node_id | { let node = condition_tracker . get ( node_id ) . unwrap ( ) ; resolve_order ( node , node_order , condition_tracker ) ; } ) ; if ! node_order . contains ( & condition_node . condition ) { node_order . push ( condition_node . condition . clone ( ) ) ; } condition_node . used_by . iter ( ) . for_each ( | node_id | { let node = condition_tracker . get ( node_id ) . unwrap ( ) ; resolve_order ( node , node_order , condition_tracker ) ; } ) ; } }
Derive an ordering of conditions that ensure all dependency conditions are declared before
 conditions that use them.
Derive an ordering of conditions that ensure all dependency conditions are declared before conditions that use them .
condition_node
&ConditionNode
node_order
&mut Vec<ConditionParseTree>
condition_tracker
&HashMap<String, ConditionNode>
condition_node
&ConditionNode
node_order
&mut Vec<ConditionParseTree>
condition_tracker
&HashMap<String, ConditionNode>