tree b3d419480301ea427b472b0a3754c995c45db5c4
parent de74d28a5fa2fcacbe39710a735d5ec714942a53
author anthony sottile <asottile@umich.edu> 1791499095 -0400
committer anthony sottile <asottile@umich.edu> 1791499095 -0400

avoid mutation of AST objects