let to_what = match to_what with None -> [] | Some to_what -> to_what in
GrafiteAst.LApply (loc, depth, to_what, what, ident)
| IDENT "left" -> GrafiteAst.Left loc
let to_what = match to_what with None -> [] | Some to_what -> to_what in
GrafiteAst.LApply (loc, depth, to_what, what, ident)
| IDENT "left" -> GrafiteAst.Left loc