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ML API: got rid of "extra" objects on types.

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2013-02-19 20:04:11 +00:00
parent 23febf13c4
commit a27945f297
1 changed files with 23 additions and 50 deletions
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73
src/api/ml/z3.ml
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@ -93,13 +93,7 @@ type quantifier = Quantifier of expr
type pattern = Pattern of ast
(* Datatype stuff *)
type constructor_extra = {
m_n : int;
mutable m_tester_decl : func_decl option;
mutable m_constructor_decl : func_decl option ;
mutable m_accessor_decls : func_decl array option}
type constructor = Constructor of (z3_native_object * constructor_extra)
type constructor = z3_native_object
type constructor_list = z3_native_object
(* Tactical interface *)
@ -2358,7 +2352,8 @@ struct
(** Constructors *)
module Constructor =
struct
let _counts = Hashtbl.create 0
let create ( ctx : context ) ( name : symbol ) ( recognizer : symbol ) ( field_names : symbol array ) ( sorts : sort array ) ( sort_refs : int array ) =
let n = (Array.length field_names) in
if n != (Array.length sorts) then
@ -2373,53 +2368,31 @@ struct
(let f x = (Symbol.gno x) in (Array.map f field_names))
(let f x = (ptr_of_ast (ast_of_sort x)) in (Array.map f sorts))
sort_refs) in
let no : z3_native_object = { m_ctx = ctx ;
m_n_obj = null ;
inc_ref = z3obj_nil_ref ;
dec_ref = z3obj_nil_ref} in
let ex : constructor_extra = { m_n = n;
m_tester_decl = None;
m_constructor_decl = None;
m_accessor_decls = None} in
let no : constructor = { m_ctx = ctx ;
m_n_obj = null ;
inc_ref = z3obj_nil_ref ;
dec_ref = z3obj_nil_ref} in
Hashtbl.add _counts no n ;
(z3obj_sno no ctx ptr) ;
(z3obj_create no) ;
let f = fun o -> Z3native.del_constructor (z3obj_gnc o) (z3obj_gno o) in
Gc.finalise f no ;
Constructor(no, ex)
no
let init_extra ( x : constructor ) =
match x with Constructor(no, ex) ->
match ex.m_tester_decl with
| None ->
let (a, b, c) = (Z3native.query_constructor (z3obj_gnc no) (z3obj_gno no) ex.m_n) in
ex.m_constructor_decl <- Some (func_decl_of_ptr (z3obj_gc no) a) ;
ex.m_tester_decl <- Some (func_decl_of_ptr (z3obj_gc no) b) ;
ex.m_accessor_decls <- Some (let f e = (func_decl_of_ptr (z3obj_gc no) e) in Array.map f c) ;
()
| _ -> ()
let get_n ( x : constructor ) =
match x with Constructor(no, ex) ->
ex.m_n
let get_n ( x : constructor ) = (Hashtbl.find _counts x)
let rec tester_decl ( x : constructor ) =
match x with Constructor(no, ex) ->
match ex.m_tester_decl with
| Some(s) -> s
| None -> init_extra x ; tester_decl x
let rec constructor_decl ( x : constructor ) =
match x with Constructor(no, ex) ->
match ex.m_constructor_decl with
| Some(s) -> s
| None -> init_extra x ; constructor_decl x
let (a, _, _) = (Z3native.query_constructor (z3obj_gnc x) (z3obj_gno x) (Hashtbl.find _counts x)) in
func_decl_of_ptr (z3obj_gc x) a
let rec tester_decl ( x : constructor ) =
let (_, b, _) = (Z3native.query_constructor (z3obj_gnc x) (z3obj_gno x) (Hashtbl.find _counts x)) in
func_decl_of_ptr (z3obj_gc x) b
let rec accessor_decls ( x : constructor ) =
match x with Constructor(no, ex) ->
match ex.m_accessor_decls with
| Some(s) -> s
| None -> init_extra x ; accessor_decls x
let (_, _, c) = (Z3native.query_constructor (z3obj_gnc x) (z3obj_gno x) (Hashtbl.find _counts x)) in
let f y = func_decl_of_ptr (z3obj_gc x) y in
Array.map f c
(** The number of fields of the constructor. *)
let get_num_fields ( x : constructor ) = get_n x
@ -2443,7 +2416,7 @@ struct
m_n_obj = null ;
inc_ref = z3obj_nil_ref ;
dec_ref = z3obj_nil_ref} in
let f x = match x with Constructor(no,_) -> (z3obj_gno no) in
let f x =(z3obj_gno x) in
(z3obj_sno res ctx (Z3native.mk_constructor_list (context_gno ctx) (Array.length c) (Array.map f c))) ;
(z3obj_create res) ;
let f = fun o -> Z3native.del_constructor_list (z3obj_gnc o) (z3obj_gno o) in
@ -2462,7 +2435,7 @@ struct
if the corresponding sort reference is 0, then the value in sort_refs should be an index
referring to one of the recursive datatypes that is declared.
*)
let mk_constructor ( ctx : context ) ( name : symbol ) ( recognizer : symbol ) ( field_names : symbol array ) ( sorts : sort array ) ( sort_refs : int array) =
let mk_constructor ( ctx : context ) ( name : symbol ) ( recognizer : symbol ) ( field_names : symbol array ) ( sorts : sort array ) ( sort_refs : int array ) =
Constructor.create ctx name recognizer field_names sorts sort_refs
@ -2483,8 +2456,8 @@ struct
(**
Create a new datatype sort.
*)
let mk_sort ( ctx : context ) ( name : symbol ) ( constructors : constructor array) =
let f x = match x with Constructor(no,_) -> (z3obj_gno no) in
let mk_sort ( ctx : context ) ( name : symbol ) ( constructors : constructor array ) =
let f x = (z3obj_gno x) in
let (x,_) = (Z3native.mk_datatype (context_gno ctx) (Symbol.gno name) (Array.length constructors) (Array.map f constructors)) in
create_sort ctx x