Method maybe_capture_fn_refs

codegraph-kernel/src/dart.rs:1276–1346

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

    // --- function-as-value capture (#756) — DART_SPEC ---------------------

    fn maybe_capture_fn_refs(&mut self, node: Node<'t>) {
        let (mode, field): (&str, &str) = match node.kind() {
            "arguments" => ("args", ""),
            "assignment_expression" => ("rhs", "right"),
            "pair" => ("value", "value"),
            "list_literal" => ("list", ""),
            "static_final_declaration" => ("varinit", ""),
            _ => return,
        };
        if self.stack.is_empty() {
            return;
        }
        let from = self.top_row();

        let mut values: Vec<Node<'t>> = Vec::new();
        match mode {
            "args" | "list" => {
                let mut cursor = node.walk();
                for c in node.named_children(&mut cursor) {
                    values.push(c);
                }
            }
            "rhs" => {
                if let Some(rhs) = node.child_by_field_name(field) {
                    let lhs = node
                        .child_by_field_name("left")
                        .or_else(|| node.child_by_field_name("lhs"))
                        .or_else(|| node.child_by_field_name("target"))
                        .or_else(|| {
                            if node.named_child_count() >= 2 {
                                node.named_child(0)
                            } else {
                                None
                            }
                        });
                    let lhs_text = lhs.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);
                    }
                }
            }
            "value" => {
                let v = node.child_by_field_name(field).or_else(|| {
                    let count = node.named_child_count();
                    if count > 0 { node.named_child(count - 1) } else { None }
                });
                if let Some(v) = v {
                    values.push(v);
                }
            }
            _ => {
                // varinit, NO field (function-ref.ts:471-487): the last named
                // child, requiring ≥2 named children; the name-field guard is
                // inert (static_final_declaration has no name/pattern field).