Method is_async

codegraph-kernel/src/swift.rs:497–501

isAsync: dead hook — `async` never sits inside `modifiers` (it's an anon child after the params) → effectively always false, but PRESENT.

(&self, node: Node)

    /// isAsync: dead hook — `async` never sits inside `modifiers` (it's an
    /// anon child after the params) → effectively always false, but PRESENT.
    fn is_async(&self, node: Node) -> bool {
        (0..node.child_count())
            .filter_map(|i| node.child(i))
            .any(|c| c.kind() == "modifiers" && self.text(c).contains("async"))
    }

    /// extractSwiftReturnType — POSITIONAL: first user_type/optional_type after
    /// the name simple_identifier, before function_body; last dotted segment;