Method maybe_capture_fn_refs

codegraph-kernel/src/python.rs:715–795

(&mut self, node: Node<'t>)

    // --- fn refs (PYTHON_SPEC) ------------------------------------------------------

    fn maybe_capture_fn_refs(&mut self, node: Node<'t>) {
        let (mode, field): (&str, &str) = match node.kind() {
            "argument_list" => ("args", ""),
            "assignment" => ("rhs", "right"),
            "keyword_argument" => ("value", "value"),
            "pair" => ("value", "value"),
            "list" => ("list", ""),
            // `return SomeClass` / `return handler` (#1478) — a single
            // returned expression is a direct named child ('list' shape);
            // tuple returns sit under expression_list and are not descended
            // (mirrors PYTHON_SPEC).
            "return_statement" => ("list", ""),
            _ => return,
        };
        if self.stack.is_empty() {
            return;
        }
        let from = self.top_row();

        let mut values: Vec<Node> = Vec::new();
        match mode {
            "args" | "list" => {
                for i in 0..node.named_child_count() {
                    if let Some(c) = node.named_child(i) {
                        values.push(c);
                    }
                }
            }
            "rhs" => {
                if let Some(rhs) = node.child_by_field_name(field) {
                    let lhs_text = node
                        .child_by_field_name("left")
                        .map(|l| self.text(l))
                        .unwrap_or("");
                    let lhs_last = util::lhs_last_name()
                        .captures(lhs_text)
                        .and_then(|c| c.get(1))
                        .map(|m| m.as_str());
                    if !(lhs_last.is_some() && lhs_last == Some(self.text(rhs).trim())) {
                        values.push(rhs);
                    }
                }
            }
            _ => {
                if let Some(v) = node.child_by_field_name(field) {
                    values.push(v);
                }
            }
        }

        for v in values {
            let (name, anchor) = match v.kind() {
                "identifier" => (self.text(v).to_string(), v),
                // `self.handle_click` — object EXACTLY `self`; BARE attr name.
                "attribute" => {
                    let obj = v.child_by_field_name("object");
                    let attr = v.child_by_field_name("attribute");
                    match (obj, attr) {