1(* -*- tuareg -*- *)
2open Int32
3open Int64
4
5type enum = [ `Int of int ]
6
7type 'a c_obj_t = 
8    C_void
9  | C_bool of bool
10  | C_char of char
11  | C_uchar of char
12  | C_short of int
13  | C_ushort of int
14  | C_int of int
15  | C_uint of int32
16  | C_int32 of int32
17  | C_int64 of int64
18  | C_float of float
19  | C_double of float
20  | C_ptr of int64 * int64
21  | C_array of 'a c_obj_t array
22  | C_list of 'a c_obj_t list
23  | C_obj of (string -> 'a c_obj_t -> 'a c_obj_t)
24  | C_string of string
25  | C_enum of 'a
26  | C_director_core of 'a c_obj_t * 'a c_obj_t option ref
27
28type c_obj = enum c_obj_t
29
30exception BadArgs of string
31exception BadMethodName of string * string
32exception NotObject of c_obj
33exception NotEnumType of c_obj
34exception LabelNotFromThisEnum of c_obj
35exception InvalidDirectorCall of c_obj
36exception NoSuchClass of string
37let rec invoke obj = 
38  match obj with 
39      C_obj o -> o 
40    | C_director_core (o,r) -> invoke o
41    | _ -> raise (NotObject (Obj.magic obj))
42let _ = Callback.register "swig_runmethod" invoke
43
44let fnhelper arg =
45  match arg with C_list l -> l | C_void -> [] | _ -> [ arg ]
46
47let rec get_int x = 
48  match x with
49      C_bool b -> if b then 1 else 0
50    | C_char c
51    | C_uchar c -> (int_of_char c)
52    | C_short s
53    | C_ushort s
54    | C_int s -> s
55    | C_uint u
56    | C_int32 u -> (Int32.to_int u)
57    | C_int64 u -> (Int64.to_int u)
58    | C_float f -> (int_of_float f)
59    | C_double d -> (int_of_float d)
60    | C_ptr (p,q) -> (Int64.to_int p)
61    | C_obj o -> (try (get_int (o "int" C_void))
62		  with _ -> (get_int (o "&" C_void)))
63    | _ -> raise (Failure "Can't convert to int")
64
65let rec get_float x = 
66  match x with
67      C_char c
68    | C_uchar c -> (float_of_int (int_of_char c))
69    | C_short s -> (float_of_int s)
70    | C_ushort s -> (float_of_int s)
71    | C_int s -> (float_of_int s)
72    | C_uint u
73    | C_int32 u -> (float_of_int (Int32.to_int u))
74    | C_int64 u -> (float_of_int (Int64.to_int u))
75    | C_float f -> f
76    | C_double d -> d
77    | C_obj o -> (try (get_float (o "float" C_void))
78		  with _ -> (get_float (o "double" C_void)))
79    | _ -> raise (Failure "Can't convert to float")
80
81let rec get_char x =
82  (char_of_int (get_int x))
83
84let rec get_string x = 
85  match x with 
86      C_string str -> str
87    | _ -> raise (Failure "Can't convert to string")
88
89let rec get_bool x = 
90  match x with
91      C_bool b -> b
92    | _ -> 
93	(try if get_int x != 0 then true else false
94	 with _ -> raise (Failure "Can't convert to bool"))
95
96let disown_object obj = 
97  match obj with
98      C_director_core (o,r) -> r := None
99    | _ -> raise (Failure "Not a director core object")
100let _ = Callback.register "caml_obj_disown" disown_object
101let addr_of obj = 
102  match obj with
103      C_obj _ -> (invoke obj) "&" C_void
104    | C_director_core (self,r) -> (invoke self) "&" C_void
105    | C_ptr _ -> obj
106    | _ -> raise (Failure "Not a pointer.")
107let _ = Callback.register "caml_obj_ptr" addr_of
108
109let make_float f = C_float f
110let make_double f = C_double f
111let make_string s = C_string s
112let make_bool b = C_bool b
113let make_char c = C_char c
114let make_char_i c = C_char (char_of_int c)
115let make_uchar c = C_uchar c
116let make_uchar_i c = C_uchar (char_of_int c)
117let make_short i = C_short i
118let make_ushort i = C_ushort i
119let make_int i = C_int i
120let make_uint i = C_uint (Int32.of_int i)
121let make_int32 i = C_int32 (Int32.of_int i)
122let make_int64 i = C_int64 (Int64.of_int i)
123
124let new_derived_object cfun x_class args =
125  begin
126    let get_object ob =
127      match !ob with
128          None ->
129    raise (NotObject C_void)
130        | Some o -> o in
131    let ob_ref = ref None in
132    let class_fun class_f ob_r =
133      (fun meth args -> class_f (get_object ob_r) meth args) in
134    let new_class = class_fun x_class ob_ref in
135    let dircore = C_director_core (C_obj new_class,ob_ref) in
136    let obj =
137    cfun (match args with
138            C_list argl -> (C_list ((dircore :: argl)))
139	  | C_void -> (C_list [ dircore ])
140          | a -> (C_list [ dircore ; a ])) in
141    ob_ref := Some obj ;
142      obj
143  end
144  
145let swig_current_type_info = ref C_void
146let find_type_info obj = !swig_current_type_info 
147let _ = Callback.register "swig_find_type_info" find_type_info
148let set_type_info obj =
149  match obj with
150    C_ptr _ -> swig_current_type_info := obj ;
151               obj
152    | _ -> raise (Failure "Internal error: passed non pointer to set_type_info")
153let _ = Callback.register "swig_set_type_info" set_type_info
154
155let class_master_list = Hashtbl.create 20
156let register_class_byname nm co = 
157  Hashtbl.replace class_master_list nm (Obj.magic co)
158let create_class nm arg = 
159  try (Obj.magic (Hashtbl.find class_master_list nm)) arg with _ -> raise (NoSuchClass nm)
160