# Module CamlinternalOO

    module CamlinternalOO: sig .. end

Run-time support for objects and classes. All functions in this module are for system use only, not for the casual user.

## Classes

    type tag

    type label

    type table

    type meth

    type t

    type obj

    type closure

    val public_method_label : string -> tag

    val new_method : table -> label

    val new_variable : table -> string -> int

    val new_methods_variables : table ->
           string array -> string array -> label array

    val get_variable : table -> string -> int

    val get_variables : table -> string array -> int array

    val get_method_label : table -> string -> label

    val get_method_labels : table -> string array -> label array

    val get_method : table -> label -> meth

    val set_method : table -> label -> meth -> unit

    val set_methods : table -> label array -> unit

    val narrow : table -> string array -> string array -> string array -> unit

    val widen : table -> unit

    val add_initializer : table -> (obj -> unit) -> unit

    val dummy_table : table

    val create_table : string array -> table

    val init_class : table -> unit

    val inherits : table ->
           string array ->
           string array ->
           string array ->
           t *
           (table -> obj -> Obj.t) *
           t * obj -> bool -> Obj.t array

    val make_class : string array ->
           (table -> Obj.t -> t) ->
           t *
           (table -> Obj.t -> t) *
           (Obj.t -> t) * Obj.t

    type init_table

    val make_class_store : string array ->
           (table -> t) ->
           init_table -> unit

    val dummy_class : string * int * int ->
           t *
           (table -> Obj.t -> t) *
           (Obj.t -> t) * Obj.t

## Objects

    val copy : (< .. > as 'a) -> 'a

    val create_object : table -> obj

    val create_object_opt : obj -> table -> obj

    val run_initializers : obj -> table -> unit

    val run_initializers_opt : obj ->
           obj -> table -> obj

    val create_object_and_run_initializers : obj -> table -> obj

    val send : obj -> tag -> t

    val sendcache : obj ->
           tag -> t -> int -> t

    val sendself : obj -> label -> t

    val get_public_method : obj -> tag -> closure

## Table cache

    type tables

    val lookup_tables : tables ->
           closure array -> tables

## Builtins to reduce code size

    type impl =

`|` | `GetConst`
`|` | `GetVar`
`|` | `GetEnv`
`|` | `GetMeth`
`|` | `SetVar`
`|` | `AppConst`
`|` | `AppVar`
`|` | `AppEnv`
`|` | `AppMeth`
`|` | `AppConstConst`
`|` | `AppConstVar`
`|` | `AppConstEnv`
`|` | `AppConstMeth`
`|` | `AppVarConst`
`|` | `AppEnvConst`
`|` | `AppMethConst`
`|` | `MethAppConst`
`|` | `MethAppVar`
`|` | `MethAppEnv`
`|` | `MethAppMeth`
`|` | `SendConst`
`|` | `SendVar`
`|` | `SendEnv`
`|` | `SendMeth`
`|` | `Closure of `closure``

## Parameters

    type params = {

`` | `mutable compact_table : `bool`;`
`` | `mutable copy_parent : `bool`;`
`` | `mutable clean_when_copying : `bool`;`
`` | `mutable retry_count : `int`;`
`` | `mutable bucket_small_size : `int`;`

`}`

    val params : params

## Statistics

    type stats = {

`` | `classes : `int`;`
`` | `methods : `int`;`
`` | `inst_vars : `int`;`

`}`

    val stats : unit -> stats