module Obj: sig .. endOperations on internal representations of values.
Not for the casual user.
type t
type raw_data = nativeint
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 -> int
Computes the total size (in words, including the headers) of all heap blocks accessible from the argument. Statically allocated blocks are included.
val field : t -> int -> t
val set_field : t -> int -> t -> unit
When 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.
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 compare_and_swap_field : t -> int -> t -> t -> bool
val is_shared : t -> bool
val double_field : t -> int -> float
val set_double_field : t -> int -> float -> unit
val raw_field : t -> int -> raw_data
val set_raw_field : t -> int -> raw_data -> unit
val new_block : int -> int -> t
val dup : t -> t
val add_offset : t -> Int32.t -> t
val with_tag : int -> t -> t
val first_non_constant_constructor_tag : int
val last_non_constant_constructor_tag : int
val forcing_tag : int
val cont_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 int_tag : int
val out_of_heap_tag : int
val unaligned_tag : int
module Closure: sig .. end
module Extension_constructor: sig .. end
module Ephemeron: sig .. end