module Obj: Objtype
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 size : t -> int
val reachable_words : t -> intComputes the total size (in words, including the headers) of all heap blocks accessible from the argument. Statically allocated blocks are excluded.
@Since 4.04
val field : t -> int -> t
val set_field : t -> int -> t -> unitWhen using flambda:
set_field MUST NOT be called on immutable blocks. (Blocks allocated
in C stubs, or with new_block below, are always considered mutable.)
The same goes for set_double_field and set_tag. However, for
set_tag, in the case of immutable blocks where the middle-end optimizers
never see code that discriminates on their tag (for example records), the
operation should be safe. Such uses are nonetheless discouraged.
For experts only:
set_field et al can be made safe by first wrapping the block in
Sys.opaque_identity, so any information about its contents will not
be propagated.
val set_tag : t -> int -> 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 add_offset : t -> Int32.t -> t
val first_non_constant_constructor_tag : int
val last_non_constant_constructor_tag : int
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
module Extension_constructor:sig..end
val extension_constructor : 'a -> extension_constructor
val extension_name : extension_constructor -> string
val extension_id : extension_constructor -> intThe following two functions are deprecated. Use module Marshal
instead.
val marshal : t -> bytes
val unmarshal : bytes -> int -> t * int
module Ephemeron:sig..end