Function flat_param_matchers_to_def

crates/openshell-policy/src/lib.rs:446–453

(
    params: Vec<(String, QueryMatcherDef)>,
)

}

fn flat_param_matchers_to_def(
    params: Vec<(String, QueryMatcherDef)>,
) -> BTreeMap<String, ParamMatcherDef> {
    params
        .into_iter()
        .map(|(key, matcher)| (key, ParamMatcherDef::Matcher(matcher)))
        .collect()
}

// Build one nested params path from a flat key. Collisions such as `a` and
// `a.b` cannot round-trip as nested YAML, so callers fall back to the flat map.