gistfile1.txt

fn find_outer_scope_cx(@block_ctxt cx) -> @block_ctxt {
    auto scope_cx = find_scope_cx(cx);
    alt (cx.parent) {
        case (parent_some(?b)) {
            be find_scope_cx(b);
        }
        case (parent_none) {
            fail;
        }
    }
}