Obj

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type t

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external repr : 'a -> t = "%identity"

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external obj : t -> 'a = "%identity"

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external magic : 'a -> 'b = "%identity"

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external is_block : t -> bool = "caml_obj_is_block"

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external is_int : t -> bool = "%obj_is_int"

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external tag : t -> int = "caml_obj_tag"

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external set_tag : t -> int -> unit = "caml_obj_set_tag"

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external size : t -> int = "%obj_size"

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external field : t -> int -> t = "%obj_field"

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external set_field : t -> int -> t -> unit = "%obj_set_field"

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val double_field : t -> int -> float

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val set_double_field : t -> int -> float -> unit

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external new_block : int -> int -> t = "caml_obj_block"

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external dup : t -> t = "caml_obj_dup"

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external truncate : t -> int -> unit = "caml_obj_truncate"

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external add_offset : t -> Int32.t -> t = "caml_obj_add_offset"

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val lazy_tag : int

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val closure_tag : int

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val object_tag : int

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val infix_tag : int

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val forward_tag : int

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val no_scan_tag : int

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val abstract_tag : int

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val string_tag : int

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val double_tag : int

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val double_array_tag : int

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val custom_tag : int

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val final_tag : int

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val int_tag : int

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val out_of_heap_tag : int

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val unaligned_tag : int

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val extension_name : 'a -> string

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val extension_id : 'a -> int

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val extension_slot : 'a -> t

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val marshal : t -> bytes

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val unmarshal : bytes -> int -> t * int

module Obj