type stmt = Expr of Expr.expr_node | Print of Expr.expr_node
and stmt_node = { stmt : stmt; pos : Error.code_pos }

let show_stmt stmt =
  match stmt with Expr expr -> Expr.show_expr expr.expr | Print expr -> Expr.show_expr expr.expr

let make_expr_stmt (pos : Error.code_pos) (expr : Expr.expr_node) : stmt_node =
  let stmt = Expr expr in
  { stmt; pos }

let make_print (pos : Error.code_pos) (expr : Expr.expr_node) : stmt_node =
  let stmt = Print expr in
  { stmt; pos }