// Render the given term into the output stream.
void
print(std::ostream& os, Tree* t) {
if (not t) {
os << "<null>";
return;
}
switch (t->kind) {
case id_tree: return pp_terminal(os, as<Id_tree>(t));
case lit_tree: return pp_terminal(os, as<Lit_tree>(t));
case var_tree: return pp_var(os, as<Var_tree>(t));
case init_tree: return pp_init(os, as<Init_tree>(t));
case abs_tree: return pp_abs(os, as<Abs_tree>(t));
case fn_tree: return pp_fn(os, as<Fn_tree>(t));
case app_tree: return pp_app(os, as<App_tree>(t));
case if_tree: return pp_if(os, as<If_tree>(t));
case succ_tree: return pp_succ(os, as<Succ_tree>(t));
case pred_tree: return pp_pred(os, as<Pred_tree>(t));
case ls_tree: return pp_ls(os, as<Ls_tree>(t));//Rishi
case mkdir_tree: return pp_mkdir(os, as<Mkdir_tree>(t));//Rishi
case rmdir_tree: return pp_rmdir(os, as<Rmdir_tree>(t));//Rishi
case cd_tree: return pp_cd(os, as<Cd_tree>(t));//Rishi
case mv_tree: return pp_mv(os, as<Mv_tree>(t));//Rishi
case iszero_tree: return pp_iszero(os, as<Iszero_tree>(t));
case arrow_tree: return pp_arrow(os, as<Arrow_tree>(t));
case def_tree: return pp_def(os, as<Def_tree>(t));
case print_tree: return pp_print(os, as<Print_tree>(t));
case typeof_tree: return pp_typeof(os, as<Typeof_tree>(t));
case tuple_tree: return pp_tuple(os, as<Tuple_tree>(t));
case list_tree: return pp_list(os, as<List_tree>(t));
case variant_tree: return pp_variant(os, as<Variant_tree>(t));
case comma_tree: return pp_comma(os, as<Comma_tree>(t));
case dot_tree: return pp_dot(os, as<Dot_tree>(t));
case prog_tree: return pp_prog(os, as<Prog_tree>(t));
}
lang_unreachable(format("print unknown node '{}'", node_name(t)));
}
void
pp_c_dot (c_pretty_printer *pp)
{
pp_dot (pp);
pp_base (pp)->padding = pp_none;
}