// Rust
 let partial = find_partial(rc, r, d, tname)?; 
  
 if let Some(t) = partial { 
     // clone to avoid lifetime issue 
     // FIXME refactor this to avoid 
     let mut local_rc = rc.clone();    // <---  This line can't reuse `RenderContext` after partial
  
     // if tname == PARTIAL_BLOCK 
     let is_partial_block = tname == PARTIAL_BLOCK; 
  
     // add partial block depth there are consecutive partial