Module Obj
type t
val repr : 'a -> t
val obj : t -> 'a
val magic : 'a -> 'b
val is_block : t -> bool
val is_int : t -> bool
val tag : t -> int
val set_tag : t -> int -> unit
val size : t -> int
val field : t -> int -> t
val set_field : t -> int -> t -> unit
val double_field : t -> int -> float
val set_double_field : t -> int -> float -> unit
val new_block : int -> int -> t
val dup : t -> t
val truncate : t -> int -> unit
val lazy_tag : int
val closure_tag : int
val object_tag : int
val infix_tag : int
val forward_tag : int
val no_scan_tag : int
val abstract_tag : int
val string_tag : int
val double_tag : int
val double_array_tag : int
val custom_tag : int
val final_tag : int
val int_tag : int
val out_of_heap_tag : int
val unaligned_tag : int
val extension_name : 'a -> string
val extension_id : 'a -> int
val marshal : t -> bytes
val unmarshal : bytes -> int -> (t * int)