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|
(*
* Copyright (C)2005-2013 Haxe Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*)
open Common
open Nast
open Unix
open Type
(* ---------------------------------------------------------------------- *)
(* TYPES *)
type value =
| VNull
| VBool of bool
| VInt of int
| VFloat of float
| VString of string
| VObject of vobject
| VArray of value array
| VAbstract of vabstract
| VFunction of vfunction
| VClosure of value list * (value list -> value list -> value)
| VInt32 of int32
and vobject = {
mutable ofields : (int * value) array;
mutable oproto : vobject option;
}
and vabstract =
| ADeallocated of int ref
| AKind of vabstract
| AHash of (value, value) Hashtbl.t
| ARandom of Random.State.t ref
| ABuffer of Buffer.t
| APos of Ast.pos
| AFRead of (in_channel * bool ref)
| AFWrite of out_channel
| AReg of regexp
| AZipI of zlib
| AZipD of zlib
| AUtf8 of UTF8.Buf.buf
| ASocket of Unix.file_descr
| ATDecl of module_type
| AUnsafe of Obj.t
| ALazyType of (unit -> Type.t) ref
| ANekoAbstract of Extc.value
| ANekoBuffer of value
| ACacheRef of value
| AInt32Kind
| ATls of value ref
| AProcess of Process.process
and vfunction =
| Fun0 of (unit -> value)
| Fun1 of (value -> value)
| Fun2 of (value -> value -> value)
| Fun3 of (value -> value -> value -> value)
| Fun4 of (value -> value -> value -> value -> value)
| Fun5 of (value -> value -> value -> value -> value -> value)
| FunVar of (value list -> value)
and regexp = {
r : Str.regexp;
mutable r_string : string;
mutable r_groups : (int * int) option array;
}
and zlib = {
z : Extc.zstream;
mutable z_flush : Extc.zflush;
}
type cmp =
| CEq
| CSup
| CInf
| CUndef
type extern_api = {
pos : Ast.pos;
get_com : unit -> Common.context;
get_type : string -> Type.t option;
get_module : string -> Type.t list;
on_generate : (Type.t list -> unit) -> unit;
after_generate : (unit -> unit) -> unit;
on_type_not_found : (string -> value) -> unit;
parse_string : string -> Ast.pos -> bool -> Ast.expr;
type_expr : Ast.expr -> Type.texpr;
store_typed_expr : Type.texpr -> Ast.expr;
get_display : string -> string;
allow_package : string -> unit;
type_patch : string -> string -> bool -> string option -> unit;
meta_patch : string -> string -> string option -> bool -> unit;
set_js_generator : (value -> unit) -> unit;
get_local_type : unit -> t option;
get_expected_type : unit -> t option;
get_call_arguments : unit -> Ast.expr list option;
get_local_method : unit -> string;
get_local_using : unit -> tclass list;
get_local_vars : unit -> (string, Type.tvar) PMap.t;
get_build_fields : unit -> value;
get_pattern_locals : Ast.expr -> Type.t -> (string,Type.tvar * Ast.pos) PMap.t;
define_type : value -> unit;
define_module : string -> value list -> ((string * Ast.pos) list * Ast.import_mode) list -> Ast.type_path list -> unit;
module_dependency : string -> string -> bool -> unit;
current_module : unit -> module_def;
delayed_macro : int -> (unit -> (unit -> value));
use_cache : unit -> bool;
format_string : string -> Ast.pos -> Ast.expr;
cast_or_unify : Type.t -> texpr -> Ast.pos -> Type.texpr;
add_global_metadata : string -> string -> (bool * bool * bool) -> unit;
}
type callstack = {
cpos : pos;
cthis : value;
cstack : int;
cenv : value array;
}
type context = {
gen : Genneko.context;
types : (Type.path,int) Hashtbl.t;
prototypes : (string list, vobject) Hashtbl.t;
fields_cache : (int,string) Hashtbl.t;
mutable error : bool;
mutable error_proto : vobject;
mutable enums : (value * string) array array;
mutable do_call : value -> value -> value list -> pos -> value;
mutable do_string : value -> string;
mutable do_loadprim : value -> value -> value;
mutable do_compare : value -> value -> cmp;
mutable loader : value;
mutable exports : value;
(* runtime *)
mutable stack : value DynArray.t;
mutable callstack : callstack list;
mutable callsize : int;
mutable exc : pos list;
mutable vthis : value;
mutable venv : value array;
(* context *)
mutable curapi : extern_api;
mutable on_reused : (unit -> bool) list;
mutable is_reused : bool;
(* eval *)
mutable locals_map : (string, int) PMap.t;
mutable locals_count : int;
mutable locals_barrier : int;
mutable locals_env : string DynArray.t;
mutable globals : (string, value ref) PMap.t;
}
type access =
| AccThis
| AccLocal of int
| AccGlobal of value ref
| AccEnv of int
| AccField of (unit -> value) * string
| AccArray of (unit -> value) * (unit -> value)
exception Runtime of value
exception Builtin_error
exception Error of string * Ast.pos list
exception Abort
exception Continue
exception Break of value
exception Return of value
exception Invalid_expr
exception Sys_exit of int
(* ---------------------------------------------------------------------- *)
(* UTILS *)
let get_ctx_ref = ref (fun() -> assert false)
let encode_complex_type_ref = ref (fun t -> assert false)
let encode_type_ref = ref (fun t -> assert false)
let decode_type_ref = ref (fun t -> assert false)
let encode_expr_ref = ref (fun e -> assert false)
let decode_expr_ref = ref (fun e -> assert false)
let encode_texpr_ref = ref (fun e -> assert false)
let decode_texpr_ref = ref (fun e -> assert false)
let encode_clref_ref = ref (fun c -> assert false)
let enc_hash_ref = ref (fun h -> assert false)
let enc_array_ref = ref (fun l -> assert false)
let dec_array_ref = ref (fun v -> assert false)
let enc_string_ref = ref (fun s -> assert false)
let make_ast_ref = ref (fun _ -> assert false)
let make_complex_type_ref = ref (fun _ -> assert false)
let encode_tvar_ref = ref (fun _ -> assert false)
let decode_path_ref = ref (fun _ -> assert false)
let decode_import_ref = ref (fun _ -> assert false)
let get_ctx() = (!get_ctx_ref)()
let enc_array (l:value list) : value = (!enc_array_ref) l
let dec_array (l:value) : value list = (!dec_array_ref) l
let encode_complex_type (t:Ast.complex_type) : value = (!encode_complex_type_ref) t
let encode_type (t:Type.t) : value = (!encode_type_ref) t
let decode_type (v:value) : Type.t = (!decode_type_ref) v
let encode_expr (e:Ast.expr) : value = (!encode_expr_ref) e
let decode_expr (e:value) : Ast.expr = (!decode_expr_ref) e
let encode_texpr (e:Type.texpr) : value = (!encode_texpr_ref) e
let decode_texpr (v:value) : Type.texpr = (!decode_texpr_ref) v
let encode_clref (c:tclass) : value = (!encode_clref_ref) c
let enc_hash (h:('a,'b) Hashtbl.t) : value = (!enc_hash_ref) h
let make_ast (e:texpr) : Ast.expr = (!make_ast_ref) e
let enc_string (s:string) : value = (!enc_string_ref) s
let make_complex_type (t:Type.t) : Ast.complex_type = (!make_complex_type_ref) t
let encode_tvar (v:tvar) : value = (!encode_tvar_ref) v
let decode_path (v:value) : Ast.type_path = (!decode_path_ref) v
let decode_import (v:value) : ((string * Ast.pos) list * Ast.import_mode) = (!decode_import_ref) v
let to_int f = Int32.of_float (mod_float f 2147483648.0)
let need_32_bits i = Int32.compare (Int32.logand (Int32.add i 0x40000000l) 0x80000000l) Int32.zero <> 0
let best_int i = if need_32_bits i then VInt32 i else VInt (Int32.to_int i)
let make_pos p =
let low = p.pline land 0xFFFFF in
{
Ast.pfile = p.psource;
Ast.pmin = low;
Ast.pmax = low + (p.pline lsr 20);
}
let warn ctx msg p =
(ctx.curapi.get_com()).Common.warning msg (make_pos p)
let rec pop ctx n =
if n > 0 then begin
DynArray.delete_last ctx.stack;
pop ctx (n - 1);
end
let pop_ret ctx f n =
let v = f() in
pop ctx n;
v
let push ctx v =
DynArray.add ctx.stack v
let hash f =
let h = ref 0 in
for i = 0 to String.length f - 1 do
h := !h * 223 + int_of_char (String.unsafe_get f i);
done;
if Sys.word_size = 64 then Int32.to_int (Int32.shift_right (Int32.shift_left (Int32.of_int !h) 1) 1) else !h
let constants =
let h = Hashtbl.create 0 in
List.iter (fun f -> Hashtbl.add h (hash f) f)
["done";"read";"write";"min";"max";"file";"args";"loadprim";"loadmodule";"__a";"__s";"h";
"tag";"index";"length";"message";"pack";"name";"params";"sub";"doc";"kind";"meta";"access";
"constraints";"opt";"type";"value";"ret";"expr";"field";"values";"get";"__string";"toString";
"$";"add";"remove";"has";"__t";"module";"isPrivate";"isPublic";"isExtern";"isInterface";"exclude";
"constructs";"names";"superClass";"interfaces";"fields";"statics";"constructor";"init";"t";
"gid";"uid";"atime";"mtime";"ctime";"dev";"ino";"nlink";"rdev";"size";"mode";"pos";"len";
"binops";"unops";"from";"to";"array";"op";"isPostfix";"impl";
"id";"capture";"extra";"v";"ids";"vars";"en";"overrides";"status"];
h
let h_get = hash "__get" and h_set = hash "__set"
and h_add = hash "__add" and h_radd = hash "__radd"
and h_sub = hash "__sub" and h_rsub = hash "__rsub"
and h_mult = hash "__mult" and h_rmult = hash "__rmult"
and h_div = hash "__div" and h_rdiv = hash "__rdiv"
and h_mod = hash "__mod" and h_rmod = hash "__rmod"
and h_string = hash "__string" and h_compare = hash "__compare"
and h_constructs = hash "__constructs__" and h_a = hash "__a" and h_s = hash "__s"
and h_class = hash "__class__"
let exc v =
raise (Runtime v)
let hash_field ctx f =
let h = hash f in
(try
let f2 = Hashtbl.find ctx.fields_cache h in
if f <> f2 then exc (VString ("Field conflict between " ^ f ^ " and " ^ f2));
with Not_found ->
Hashtbl.add ctx.fields_cache h f);
h
let field_name ctx fid =
try
Hashtbl.find ctx.fields_cache fid
with Not_found ->
"???"
let obj hash fields =
let fields = Array.of_list (List.map (fun (k,v) -> hash k, v) fields) in
Array.sort (fun (k1,_) (k2,_) -> compare k1 k2) fields;
{
ofields = fields;
oproto = None;
}
let parse_int s =
let rec loop_hex i =
if i = String.length s then s else
match String.unsafe_get s i with
| '0'..'9' | 'a'..'f' | 'A'..'F' -> loop_hex (i + 1)
| _ -> String.sub s 0 i
in
let rec loop sp i =
if i = String.length s then (if sp = 0 then s else String.sub s sp (i - sp)) else
match String.unsafe_get s i with
| '0'..'9' -> loop sp (i + 1)
| ' ' when sp = i -> loop (sp + 1) (i + 1)
| '-' when i = 0 -> loop sp (i + 1)
| ('x' | 'X') when i = 1 && String.get s 0 = '0' -> loop_hex (i + 1)
| _ -> String.sub s sp (i - sp)
in
best_int (Int32.of_string (loop 0 0))
let parse_float s =
let rec loop sp i =
if i = String.length s then (if sp = 0 then s else String.sub s sp (i - sp)) else
match String.unsafe_get s i with
| ' ' when sp = i -> loop (sp + 1) (i + 1)
| '0'..'9' | '-' | '+' | 'e' | 'E' | '.' -> loop sp (i + 1)
| _ -> String.sub s sp (i - sp)
in
float_of_string (loop 0 0)
let find_sub str sub start =
let sublen = String.length sub in
if sublen = 0 then
0
else
let found = ref 0 in
let len = String.length str in
try
for i = start to len - sublen do
let j = ref 0 in
while String.unsafe_get str (i + !j) = String.unsafe_get sub !j do
incr j;
if !j = sublen then begin found := i; raise Exit; end;
done;
done;
raise Not_found
with
Exit -> !found
let nargs = function
| Fun0 _ -> 0
| Fun1 _ -> 1
| Fun2 _ -> 2
| Fun3 _ -> 3
| Fun4 _ -> 4
| Fun5 _ -> 5
| FunVar _ -> -1
let rec get_field o fid =
let rec loop min max =
if min < max then begin
let mid = (min + max) lsr 1 in
let cid, v = Array.unsafe_get o.ofields mid in
if cid < fid then
loop (mid + 1) max
else if cid > fid then
loop min mid
else
v
end else
match o.oproto with
| None -> VNull
| Some p -> get_field p fid
in
loop 0 (Array.length o.ofields)
let set_field o fid v =
let rec loop min max =
let mid = (min + max) lsr 1 in
if min < max then begin
let cid, _ = Array.unsafe_get o.ofields mid in
if cid < fid then
loop (mid + 1) max
else if cid > fid then
loop min mid
else
Array.unsafe_set o.ofields mid (cid,v)
end else
let fields = Array.make (Array.length o.ofields + 1) (fid,v) in
Array.blit o.ofields 0 fields 0 mid;
Array.blit o.ofields mid fields (mid + 1) (Array.length o.ofields - mid);
o.ofields <- fields
in
loop 0 (Array.length o.ofields)
let rec remove_field o fid =
let rec loop min max =
let mid = (min + max) lsr 1 in
if min < max then begin
let cid, v = Array.unsafe_get o.ofields mid in
if cid < fid then
loop (mid + 1) max
else if cid > fid then
loop min mid
else begin
let fields = Array.make (Array.length o.ofields - 1) (fid,VNull) in
Array.blit o.ofields 0 fields 0 mid;
Array.blit o.ofields (mid + 1) fields mid (Array.length o.ofields - mid - 1);
o.ofields <- fields;
true
end
end else
false
in
loop 0 (Array.length o.ofields)
let rec get_field_opt o fid =
let rec loop min max =
if min < max then begin
let mid = (min + max) lsr 1 in
let cid, v = Array.unsafe_get o.ofields mid in
if cid < fid then
loop (mid + 1) max
else if cid > fid then
loop min mid
else
Some v
end else
match o.oproto with
| None -> None
| Some p -> get_field_opt p fid
in
loop 0 (Array.length o.ofields)
let catch_errors ctx ?(final=(fun() -> ())) f =
let n = DynArray.length ctx.stack in
try
let v = f() in
final();
Some v
with Runtime v ->
pop ctx (DynArray.length ctx.stack - n);
final();
let rec loop o =
if o == ctx.error_proto then true else match o.oproto with None -> false | Some p -> loop p
in
(match v with
| VObject o when loop o ->
(match get_field o (hash "message"), get_field o (hash "pos") with
| VObject msg, VAbstract (APos pos) ->
(match get_field msg h_s with
| VString msg -> raise (Typecore.Error (Typecore.Custom msg,pos))
| _ -> ());
| _ -> ());
| _ -> ());
raise (Error (ctx.do_string v,List.map (fun s -> make_pos s.cpos) ctx.callstack))
| Abort ->
pop ctx (DynArray.length ctx.stack - n);
final();
None
let make_library fl =
let h = Hashtbl.create 0 in
List.iter (fun (n,f) -> Hashtbl.add h n f) fl;
h
(* ---------------------------------------------------------------------- *)
(* NEKO INTEROP *)
type primitive = (string * Extc.value * int)
type neko_context = {
load : string -> int -> primitive;
call : primitive -> value list -> value;
}
let neko =
let is_win = Sys.os_type = "Win32" || Sys.os_type = "Cygwin" in
let neko = Extc.dlopen (if is_win then "neko.dll" else "libneko.so") in
let null = Extc.dlint 0 in
let neko = if Obj.magic neko == null && not is_win then Extc.dlopen "libneko.dylib" else neko in
if Obj.magic neko == null then
None
else
let load v =
let s = Extc.dlsym neko v in
if (Obj.magic s) == null then failwith ("Could not load neko." ^ v);
s
in
ignore(Extc.dlcall0 (load "neko_global_init"));
let vm = Extc.dlcall1 (load "neko_vm_alloc") null in
ignore(Extc.dlcall1 (load "neko_vm_select") vm);
let loader = Extc.dlcall2 (load "neko_default_loader") null null in
let loadprim =
let l1 = load "neko_val_field" in
let l2 = Extc.dlcall1 (load "neko_val_id") (Extc.dlstring "loadprim") in
Extc.dlcall2 (l1) loader (l2) in
let callN = load "neko_val_callN" in
let callEx = load "neko_val_callEx" in
let copy_string = load "neko_copy_string" in
let alloc_root = load "neko_alloc_root" in
let free_root = load "neko_free_root" in
let alloc_root v =
let r = Extc.dlcall1 alloc_root (Extc.dlint 1) in
Extc.dlsetptr r v;
r
in
let free_root r =
ignore(Extc.dlcall1 free_root r)
in
ignore(alloc_root vm);
ignore(alloc_root loader);
ignore(alloc_root loadprim);
let alloc_string s =
Extc.dlcall2 copy_string (Extc.dlstring s) (Extc.dlint (String.length s))
in
let alloc_int (i:int) : Extc.value =
Obj.magic i
in
let loadprim n args =
let exc = ref null in
let vargs = [|alloc_string n;alloc_int args|] in
let p = Extc.dlcall5 callEx loader loadprim (Obj.magic vargs) (Extc.dlint 2) (Obj.magic exc) in
if !exc != null then failwith ("Failed to load " ^ n ^ ":" ^ string_of_int args);
ignore(alloc_root p);
(n,p,args)
in
let call_raw_prim (_,p,nargs) (args:Extc.value array) =
Extc.dlcall3 callN p (Obj.magic args) (Extc.dlint nargs)
in
(* a bit tricky since load "val_true" does not work as expected on Windows *)
let unser = try loadprim "std@unserialize" 2 with _ -> ("",null,0) in
(* did we fail to load std.ndll ? *)
if (match unser with ("",_,_) -> true | _ -> false) then None else
let val_true = call_raw_prim unser [|alloc_string "T";loader|] in
let val_false = call_raw_prim unser [|alloc_string "F";loader|] in
let val_null = call_raw_prim unser [|alloc_string "N";loader|] in
let is_64 = call_raw_prim (loadprim "std@sys_is64" 0) [||] == val_true in
let alloc_i32, is_v2 = (try load "neko_alloc_int32", true with _ -> Obj.magic 0, false) in
let alloc_i32 = if is_v2 then
(fun i -> Extc.dlcall1 alloc_i32 (Extc.dlint32 i))
else
(fun i -> alloc_int (Int32.to_int (if Int32.compare i Int32.zero < 0 then Int32.logand i 0x7FFFFFFFl else Int32.logor i 0x80000000l)))
in
let tag_bits = if is_v2 then 4 else 3 in
let tag_mask = (1 lsl tag_bits) - 1 in
let ptr_size = if is_64 then 8 else 4 in
let val_field v i = Extc.dladdr v ((i + 1) * ptr_size) in
let val_str v = Extc.dladdr v 4 in
let val_fun_env v = Extc.dladdr v (8 + ptr_size) in
(* alloc support *)
let alloc_function = load "neko_alloc_function" in
let alloc_array = load "neko_alloc_array" in
let alloc_float = load "neko_alloc_float" in
let alloc_object = load "neko_alloc_object" in
let alloc_field = load "neko_alloc_field" in
let alloc_abstract = load "neko_alloc_abstract" in
let val_gc = load "neko_val_gc" in
let val_field_name = load "neko_val_field_name" in
let val_iter_fields = load "neko_val_iter_fields" in
let gen_callback = Extc.dlcaml_callback 2 in
(* roots *)
let on_abstract_gc = Extc.dlcaml_callback 1 in
let root_index = ref 0 in
let roots = Hashtbl.create 0 in
Callback.register "dlcallb1" (fun a ->
let index : int = Obj.magic (Extc.dlptr (val_field a 1)) in
Hashtbl.remove roots index;
null
);
(* wrapping *)
let copy_string v =
let head = Extc.dltoint (Extc.dlptr v) in
let size = head asr tag_bits in
let s = String.create size in
Extc.dlmemcpy (Extc.dlstring s) (val_str v) size;
s
in
let buffers = ref [] in
let rec value_neko ?(obj=VNull) = function
| VNull -> val_null
| VBool b -> if b then val_true else val_false
| VInt i -> alloc_int i
| VAbstract (ANekoAbstract a) -> a
| VAbstract (ANekoBuffer (VString buf)) ->
let v = value_neko (VString buf) in
buffers := (buf,v) :: !buffers;
v
| VString s ->
let v = alloc_string s in (* make a copy *)
ignore(copy_string v);
v
| VObject o as obj ->
let vo = Extc.dlcall1 alloc_object null in
Array.iter (fun (id,v) ->
ignore(Extc.dlcall3 alloc_field vo (Extc.dlint id) (value_neko ~obj v))
) o.ofields;
vo
| VClosure _ ->
failwith "Closure not supported"
| VFunction f ->
let callb = Extc.dlcall3 alloc_function gen_callback (Extc.dlint (-1)) (Obj.magic "<callback>") in
let index = !root_index in
incr root_index;
Hashtbl.add roots index (f,obj);
let a = Extc.dlcall2 alloc_abstract null (Obj.magic index) in
if Extc.dlptr (val_field a 1) != Obj.magic index then assert false;
ignore(Extc.dlcall2 val_gc a on_abstract_gc);
Extc.dlsetptr (val_fun_env callb) a;
callb
| VArray a ->
let va = Extc.dlcall1 alloc_array (Extc.dlint (Array.length a)) in
Array.iteri (fun i v ->
Extc.dlsetptr (val_field va i) (value_neko v)
) a;
va
| VFloat f ->
Extc.dlcall1 alloc_float (Obj.magic f)
| VAbstract _ ->
failwith "Abstract not supported"
| VInt32 i ->
alloc_i32 i
in
let obj_r = ref [] in
let obj_fun = (fun v id -> obj_r := (v,id) :: !obj_r; val_null) in
let rec neko_value (v:Extc.value) =
if Obj.is_int (Obj.magic v) then
VInt (Obj.magic v)
else
let head = Extc.dltoint (Extc.dlptr v) in
match head land tag_mask with
| 0 -> VNull
| 2 -> VBool (v == val_true)
| 3 -> VString (copy_string v)
| 4 ->
ignore(Extc.dlcall3 val_iter_fields v (Extc.dlcallback 2) (Obj.magic obj_fun));
let r = !obj_r in
obj_r := [];
let ctx = get_ctx() in
let fields = List.rev_map (fun (v,id) ->
let iid = Extc.dltoint id in
if not (Hashtbl.mem ctx.fields_cache iid) then begin
let name = copy_string (Extc.dlcall1 val_field_name id) in
ignore(hash_field ctx name);
end;
iid, neko_value v
) r in
VObject { ofields = Array.of_list fields; oproto = None }
| 5 ->
VArray (Array.init (head asr tag_bits) (fun i -> neko_value (Extc.dlptr (val_field v i))))
| 7 ->
let r = alloc_root v in
let a = ANekoAbstract v in
Gc.finalise (fun _ -> free_root r) a;
VAbstract a
| t ->
failwith ("Unsupported Neko value tag " ^ string_of_int t)
in
Callback.register "dlcallb2" (fun args nargs ->
(* get back the VM env, which was set in value_neko *)
let env = Extc.dlptr (Extc.dladdr vm (2 * ptr_size)) in
(* extract the index stored in abstract data *)
let index : int = Obj.magic (Extc.dlptr (val_field env 1)) in
let f, obj = (try Hashtbl.find roots index with Not_found -> assert false) in
let nargs = Extc.dltoint nargs in
let rec loop i =
if i = nargs then [] else neko_value (Extc.dlptr (Extc.dladdr args (i * ptr_size))) :: loop (i + 1)
in
let v = (get_ctx()).do_call obj (VFunction f) (loop 0) { psource = "<callback>"; pline = 0; } in
value_neko v
);
let callprim (n,p,nargs) args =
let arr = Array.of_list (List.map value_neko args) in
let exc = ref null in
if Array.length arr <> nargs then failwith n;
let ret = Extc.dlcall5 callEx val_null p (Obj.magic arr) (Extc.dlint nargs) (Obj.magic exc) in
if !exc != null then raise (Runtime (neko_value !exc));
(match !buffers with
| [] -> ()
| l ->
buffers := [];
(* copy back data *)
List.iter (fun (buf,v) ->
Extc.dlmemcpy (Extc.dlstring buf) (val_str v) (String.length buf);
) l);
neko_value ret
in
Some {
load = loadprim;
call = callprim;
}
(* ---------------------------------------------------------------------- *)
(* BUILTINS *)
let builtins =
let p = { psource = "<builtin>"; pline = 0 } in
let error() =
raise Builtin_error
in
let vint = function
| VInt n -> n
| _ -> error()
in
let varray = function
| VArray a -> a
| _ -> error()
in
let vstring = function
| VString s -> s
| _ -> error()
in
let vobj = function
| VObject o -> o
| _ -> error()
in
let vfun = function
| VFunction f -> f
| VClosure (cl,f) -> FunVar (f cl)
| _ -> error()
in
let vhash = function
| VAbstract (AHash h) -> h
| _ -> error()
in
let build_stack sl =
let make p =
let p = make_pos p in
VArray [|VString p.Ast.pfile;VInt (Lexer.get_error_line p)|]
in
VArray (Array.of_list (List.map make sl))
in
let do_closure args args2 =
match args with
| f :: obj :: args ->
(get_ctx()).do_call obj f (args @ args2) p
| _ ->
assert false
in
let funcs = [
(* array *)
"array", FunVar (fun vl -> VArray (Array.of_list vl));
"amake", Fun1 (fun v -> VArray (Array.create (vint v) VNull));
"acopy", Fun1 (fun a -> VArray (Array.copy (varray a)));
"asize", Fun1 (fun a -> VInt (Array.length (varray a)));
"asub", Fun3 (fun a p l -> VArray (Array.sub (varray a) (vint p) (vint l)));
"ablit", Fun5 (fun dst dstp src p l ->
Array.blit (varray src) (vint p) (varray dst) (vint dstp) (vint l);
VNull
);
"aconcat", Fun1 (fun arr ->
let arr = Array.map varray (varray arr) in
VArray (Array.concat (Array.to_list arr))
);
(* string *)
"string", Fun1 (fun v -> VString ((get_ctx()).do_string v));
"smake", Fun1 (fun l -> VString (String.make (vint l) '\000'));
"ssize", Fun1 (fun s -> VInt (String.length (vstring s)));
"scopy", Fun1 (fun s -> VString (String.copy (vstring s)));
"ssub", Fun3 (fun s p l -> VString (String.sub (vstring s) (vint p) (vint l)));
"sget", Fun2 (fun s p ->
try VInt (int_of_char (String.get (vstring s) (vint p))) with Invalid_argument _ -> VNull
);
"sset", Fun3 (fun s p c ->
let c = char_of_int ((vint c) land 0xFF) in
try
String.set (vstring s) (vint p) c;
VInt (int_of_char c)
with Invalid_argument _ -> VNull);
"sblit", Fun5 (fun dst dstp src p l ->
String.blit (vstring src) (vint p) (vstring dst) (vint dstp) (vint l);
VNull
);
"sfind", Fun3 (fun src pos pat ->
try VInt (find_sub (vstring src) (vstring pat) (vint pos)) with Not_found -> VNull
);
(* object *)
"new", Fun1 (fun o ->
match o with
| VNull -> VObject { ofields = [||]; oproto = None }
| VObject o -> VObject { ofields = Array.copy o.ofields; oproto = o.oproto }
| _ -> error()
);
"objget", Fun2 (fun o f ->
match o with
| VObject o -> get_field o (vint f)
| _ -> VNull
);
"objset", Fun3 (fun o f v ->
match o with
| VObject o -> set_field o (vint f) v; v
| _ -> VNull
);
"objcall", Fun3 (fun o f pl ->
match o with
| VObject oo ->
(get_ctx()).do_call o (get_field oo (vint f)) (Array.to_list (varray pl)) p
| _ -> VNull
);
"objfield", Fun2 (fun o f ->
match o with
| VObject o ->
let p = o.oproto in
o.oproto <- None;
let v = get_field_opt o (vint f) in
o.oproto <- p;
VBool (v <> None)
| _ -> VBool false
);
"objremove", Fun2 (fun o f ->
VBool (remove_field (vobj o) (vint f))
);
"objfields", Fun1 (fun o ->
VArray (Array.map (fun (fid,_) -> VInt fid) (vobj o).ofields)
);
"hash", Fun1 (fun v -> VInt (hash_field (get_ctx()) (vstring v)));
"fasthash", Fun1 (fun v -> VInt (hash (vstring v)));
"field", Fun1 (fun v ->
try VString (Hashtbl.find (get_ctx()).fields_cache (vint v)) with Not_found -> VNull
);
"objsetproto", Fun2 (fun o p ->
let o = vobj o in
(match p with
| VNull -> o.oproto <- None
| VObject p -> o.oproto <- Some p
| _ -> error());
VNull;
);
"objgetproto", Fun1 (fun o ->
match (vobj o).oproto with
| None -> VNull
| Some p -> VObject p
);
(* function *)
"nargs", Fun1 (fun f ->
VInt (nargs (vfun f))
);
"call", Fun3 (fun f o args ->
(get_ctx()).do_call o f (Array.to_list (varray args)) p
);
"closure", FunVar (fun vl ->
match vl with
| VFunction f :: _ :: _ ->
VClosure (vl, do_closure)
| _ -> exc (VString "Can't create closure : value is not a function")
);
"apply", FunVar (fun vl ->
match vl with
| f :: args ->
let f = vfun f in
VFunction (FunVar (fun args2 -> (get_ctx()).do_call VNull (VFunction f) (args @ args2) p))
| _ -> exc (VString "Invalid closure arguments number")
);
"varargs", Fun1 (fun f ->
match f with
| VFunction (FunVar _) | VFunction (Fun1 _) | VClosure _ ->
VFunction (FunVar (fun vl -> (get_ctx()).do_call VNull f [VArray (Array.of_list vl)] p))
| _ ->
error()
);
(* numbers *)
(* skip iadd, isub, idiv, imult *)
"isnan", Fun1 (fun f ->
match f with
| VFloat f -> VBool (f <> f)
| _ -> VBool false
);
"isinfinite", Fun1 (fun f ->
match f with
| VFloat f -> VBool (f = infinity || f = neg_infinity)
| _ -> VBool false
);
"int", Fun1 (fun v ->
match v with
| VInt _ | VInt32 _ -> v
| VFloat f -> best_int (to_int f)
| VString s -> (try parse_int s with _ -> VNull)
| _ -> VNull
);
"float", Fun1 (fun v ->
match v with
| VInt i -> VFloat (float_of_int i)
| VInt32 i -> VFloat (Int32.to_float i)
| VFloat _ -> v
| VString s -> (try VFloat (parse_float s) with _ -> VNull)
| _ -> VNull
);
(* abstract *)
"getkind", Fun1 (fun v ->
match v with
| VAbstract a -> VAbstract (AKind a)
| VInt32 _ -> VAbstract (AKind AInt32Kind)
| _ -> error()
);
"iskind", Fun2 (fun v k ->
match v, k with
| VAbstract a, VAbstract (AKind k) -> VBool (Obj.tag (Obj.repr a) = Obj.tag (Obj.repr k))
| VInt32 _, VAbstract (AKind AInt32Kind) -> VBool true
| _, VAbstract (AKind _) -> VBool false
| _ -> error()
);
(* hash *)
"hkey", Fun1 (fun v -> VInt (Hashtbl.hash v));
"hnew", Fun1 (fun v ->
VAbstract (AHash (match v with
| VNull -> Hashtbl.create 0
| VInt n -> Hashtbl.create n
| _ -> error()))
);
"hresize", Fun1 (fun v -> VNull);
"hget", Fun3 (fun h k cmp ->
if cmp <> VNull then assert false;
(try Hashtbl.find (vhash h) k with Not_found -> VNull)
);
"hmem", Fun3 (fun h k cmp ->
if cmp <> VNull then assert false;
VBool (Hashtbl.mem (vhash h) k)
);
"hremove", Fun3 (fun h k cmp ->
if cmp <> VNull then assert false;
let h = vhash h in
let old = Hashtbl.mem h k in
if old then Hashtbl.remove h k;
VBool old
);
"hset", Fun4 (fun h k v cmp ->
if cmp <> VNull then assert false;
let h = vhash h in
let old = Hashtbl.mem h k in
Hashtbl.replace h k v;
VBool (not old);
);
"hadd", Fun4 (fun h k v cmp ->
if cmp <> VNull then assert false;
let h = vhash h in
let old = Hashtbl.mem h k in
Hashtbl.add h k v;
VBool (not old);
);
"hiter", Fun2 (fun h f -> Hashtbl.iter (fun k v -> ignore ((get_ctx()).do_call VNull f [k;v] p)) (vhash h); VNull);
"hcount", Fun1 (fun h -> VInt (Hashtbl.length (vhash h)));
"hsize", Fun1 (fun h -> VInt (Hashtbl.length (vhash h)));
(* misc *)
"print", FunVar (fun vl -> List.iter (fun v ->
let ctx = get_ctx() in
let com = ctx.curapi.get_com() in
com.print (ctx.do_string v)
) vl; VNull);
"throw", Fun1 (fun v -> exc v);
"rethrow", Fun1 (fun v ->
let ctx = get_ctx() in
ctx.callstack <- List.rev (List.map (fun p -> { cpos = p; cthis = ctx.vthis; cstack = DynArray.length ctx.stack; cenv = ctx.venv }) ctx.exc) @ ctx.callstack;
exc v
);
"istrue", Fun1 (fun v ->
match v with
| VNull | VInt 0 | VBool false | VInt32 0l -> VBool false
| _ -> VBool true
);
"not", Fun1 (fun v ->
match v with
| VNull | VInt 0 | VBool false | VInt32 0l -> VBool true
| _ -> VBool false
);
"typeof", Fun1 (fun v ->
VInt (match v with
| VNull -> 0
| VInt _ | VInt32 _ -> 1
| VFloat _ -> 2
| VBool _ -> 3
| VString _ -> 4
| VObject _ -> 5
| VArray _ -> 6
| VFunction _ | VClosure _ -> 7
| VAbstract _ -> 8)
);
"compare", Fun2 (fun a b ->
match (get_ctx()).do_compare a b with
| CUndef -> VNull
| CEq -> VInt 0
| CSup -> VInt 1
| CInf -> VInt (-1)
);
"pcompare", Fun2 (fun a b ->
assert false
);
"excstack", Fun0 (fun() ->
build_stack (get_ctx()).exc
);
"callstack", Fun0 (fun() ->
build_stack (List.map (fun s -> s.cpos) (get_ctx()).callstack)
);
"version", Fun0 (fun() ->
VInt 200
);
(* extra *)
"use_neko_dll", Fun0 (fun() ->
VBool (neko <> None)
);
] in
let vals = [
"tnull", VInt 0;
"tint", VInt 1;
"tfloat", VInt 2;
"tbool", VInt 3;
"tstring", VInt 4;
"tobject", VInt 5;
"tarray", VInt 6;
"tfunction", VInt 7;
"tabstract", VInt 8;
] in
let h = Hashtbl.create 0 in
List.iter (fun (n,f) -> Hashtbl.add h n (VFunction f)) funcs;
List.iter (fun (n,v) -> Hashtbl.add h n v) vals;
h
(* ---------------------------------------------------------------------- *)
(* STD LIBRARY *)
let free_abstract a =
match a with
| VAbstract vp -> Obj.set_tag (Obj.repr vp) 0 (* this will mute it as Deallocated *)
| _ -> assert false
let std_lib =
let p = { psource = "<stdlib>"; pline = 0 } in
let error() =
raise Builtin_error
in
let make_list l =
let rec loop acc = function
| [] -> acc
| x :: l -> loop (VArray [|x;acc|]) l
in
loop VNull (List.rev l)
in
let num = function
| VInt i -> float_of_int i
| VInt32 i -> Int32.to_float i
| VFloat f -> f
| _ -> error()
in
let make_date f =
VInt32 (Int32.of_float f)
in
let date = function
| VInt32 i -> Int32.to_float i
| VInt i -> float_of_int i
| _ -> error()
in
let make_i32 i =
VInt32 i
in
let int32 = function
| VInt i -> Int32.of_int i
| VInt32 i -> i
| _ -> error()
in
let vint = function
| VInt n -> n
| _ -> error()
in
let vstring = function
| VString s -> s
| _ -> error()
in
let int32_addr h =
let base = Int32.to_int (Int32.logand h 0xFFFFFFl) in
let str = Printf.sprintf "%ld.%d.%d.%d" (Int32.shift_right_logical h 24) (base lsr 16) ((base lsr 8) land 0xFF) (base land 0xFF) in
Unix.inet_addr_of_string str
in
let int32_op op = Fun2 (fun a b -> make_i32 (op (int32 a) (int32 b))) in
make_library ([
(* math *)
"math_atan2", Fun2 (fun a b -> VFloat (atan2 (num a) (num b)));
"math_pow", Fun2 (fun a b -> VFloat ((num a) ** (num b)));
"math_abs", Fun1 (fun v ->
match v with
| VInt i -> VInt (abs i)
| VInt32 i -> VInt32 (Int32.abs i)
| VFloat f -> VFloat (abs_float f)
| _ -> error()
);
"math_ceil", Fun1 (fun v -> match v with VInt _ | VInt32 _ -> v | _ -> best_int (to_int (ceil (num v))));
"math_floor", Fun1 (fun v -> match v with VInt _ | VInt32 _ -> v | _ -> best_int (to_int (floor (num v))));
"math_round", Fun1 (fun v -> match v with VInt _ | VInt32 _ -> v | _ -> best_int (to_int (floor (num v +. 0.5))));
"math_pi", Fun0 (fun() -> VFloat (4.0 *. atan 1.0));
"math_sqrt", Fun1 (fun v -> VFloat (sqrt (num v)));
"math_atan", Fun1 (fun v -> VFloat (atan (num v)));
"math_cos", Fun1 (fun v -> VFloat (cos (num v)));
"math_sin", Fun1 (fun v -> VFloat (sin (num v)));
"math_tan", Fun1 (fun v -> VFloat (tan (num v)));
"math_log", Fun1 (fun v -> VFloat (Pervasives.log (num v)));
"math_exp", Fun1 (fun v -> VFloat (exp (num v)));
"math_acos", Fun1 (fun v -> VFloat (acos (num v)));
"math_asin", Fun1 (fun v -> VFloat (asin (num v)));
"math_fceil", Fun1 (fun v -> VFloat (ceil (num v)));
"math_ffloor", Fun1 (fun v -> VFloat (floor (num v)));
"math_fround", Fun1 (fun v -> VFloat (floor (num v +. 0.5)));
"math_int", Fun1 (fun v ->
match v with
| VInt _ | VInt32 _ -> v
| VFloat f -> best_int (to_int (if f < 0. then ceil f else floor f))
| _ -> error()
);
(* buffer *)
"buffer_new", Fun0 (fun() ->
VAbstract (ABuffer (Buffer.create 0))
);
"buffer_add", Fun2 (fun b v ->
match b with
| VAbstract (ABuffer b) -> Buffer.add_string b ((get_ctx()).do_string v); VNull
| _ -> error()
);
"buffer_add_char", Fun2 (fun b v ->
match b, v with
| VAbstract (ABuffer b), VInt n when n >= 0 && n < 256 -> Buffer.add_char b (char_of_int n); VNull
| _ -> error()
);
"buffer_add_sub", Fun4 (fun b s p l ->
match b, s, p, l with
| VAbstract (ABuffer b), VString s, VInt p, VInt l -> (try Buffer.add_substring b s p l; VNull with _ -> error())
| _ -> error()
);
"buffer_string", Fun1 (fun b ->
match b with
| VAbstract (ABuffer b) -> VString (Buffer.contents b)
| _ -> error()
);
"buffer_reset", Fun1 (fun b ->
match b with
| VAbstract (ABuffer b) -> Buffer.reset b; VNull;
| _ -> error()
);
"buffer_get_length", Fun1 (fun b ->
match b with
| VAbstract (ABuffer b) -> VInt (Buffer.length b)
| _ -> error()
);
(* date *)
"date_now", Fun0 (fun () ->
make_date (Unix.time())
);
"date_new", Fun1 (fun v ->
make_date (match v with
| VNull -> Unix.time()
| VString s ->
(match String.length s with
| 19 ->
let r = Str.regexp "^\\([0-9][0-9][0-9][0-9]\\)-\\([0-9][0-9]\\)-\\([0-9][0-9]\\) \\([0-9][0-9]\\):\\([0-9][0-9]\\):\\([0-9][0-9]\\)$" in
if not (Str.string_match r s 0) then exc (VString ("Invalid date format : " ^ s));
let t = Unix.localtime (Unix.time()) in
let t = { t with
tm_year = int_of_string (Str.matched_group 1 s) - 1900;
tm_mon = int_of_string (Str.matched_group 2 s) - 1;
tm_mday = int_of_string (Str.matched_group 3 s);
tm_hour = int_of_string (Str.matched_group 4 s);
tm_min = int_of_string (Str.matched_group 5 s);
tm_sec = int_of_string (Str.matched_group 6 s);
} in
fst (Unix.mktime t)
| 10 ->
assert false
| 8 ->
assert false
| _ ->
exc (VString ("Invalid date format : " ^ s)));
| _ -> error())
);
"date_set_hour", Fun4 (fun d h m s ->
let d = date d in
let t = Unix.localtime d in
make_date (fst (Unix.mktime { t with tm_hour = vint h; tm_min = vint m; tm_sec = vint s }))
);
"date_set_day", Fun4 (fun d y m da ->
let d = date d in
let t = Unix.localtime d in
make_date (fst (Unix.mktime { t with tm_year = vint y - 1900; tm_mon = vint m - 1; tm_mday = vint da }))
);
"date_format", Fun2 (fun d fmt ->
match fmt with
| VNull ->
let t = Unix.localtime (date d) in
VString (Printf.sprintf "%.4d-%.2d-%.2d %.2d:%.2d:%.2d" (t.tm_year + 1900) (t.tm_mon + 1) t.tm_mday t.tm_hour t.tm_min t.tm_sec)
| VString "%w" ->
(* week day *)
let t = Unix.localtime (date d) in
VString (string_of_int t.tm_wday)
| VString _ ->
exc (VString "Custom date format is not supported") (* use native Haxe implementation *)
| _ ->
error()
);
"date_get_hour", Fun1 (fun d ->
let t = Unix.localtime (date d) in
let o = obj (hash_field (get_ctx())) [
"h", VInt t.tm_hour;
"m", VInt t.tm_min;
"s", VInt t.tm_sec;
] in
VObject o
);
"date_get_day", Fun1 (fun d ->
let t = Unix.localtime (date d) in
let o = obj (hash_field (get_ctx())) [
"d", VInt t.tm_mday;
"m", VInt (t.tm_mon + 1);
"y", VInt (t.tm_year + 1900);
] in
VObject o
);
(* string *)
"string_split", Fun2 (fun s d ->
make_list (match s, d with
| VString "", VString _ -> [VString ""]
| VString s, VString "" -> Array.to_list (Array.init (String.length s) (fun i -> VString (String.make 1 (String.get s i))))
| VString s, VString d -> List.map (fun s -> VString s) (ExtString.String.nsplit s d)
| _ -> error())
);
"url_encode", Fun1 (fun s ->
let s = vstring s in
let b = Buffer.create 0 in
let hex = "0123456789ABCDEF" in
for i = 0 to String.length s - 1 do
let c = String.unsafe_get s i in
match c with
| 'A'..'Z' | 'a'..'z' | '0'..'9' | '_' | '-' | '.' ->
Buffer.add_char b c
| _ ->
Buffer.add_char b '%';
Buffer.add_char b (String.unsafe_get hex (int_of_char c lsr 4));
Buffer.add_char b (String.unsafe_get hex (int_of_char c land 0xF));
done;
VString (Buffer.contents b)
);
"url_decode", Fun1 (fun s ->
let s = vstring s in
let b = Buffer.create 0 in
let len = String.length s in
let decode c =
match c with
| '0'..'9' -> Some (int_of_char c - int_of_char '0')
| 'a'..'f' -> Some (int_of_char c - int_of_char 'a' + 10)
| 'A'..'F' -> Some (int_of_char c - int_of_char 'A' + 10)
| _ -> None
in
let rec loop i =
if i = len then () else
let c = String.unsafe_get s i in
match c with
| '%' ->
let p1 = (try decode (String.get s (i + 1)) with _ -> None) in
let p2 = (try decode (String.get s (i + 2)) with _ -> None) in
(match p1, p2 with
| Some c1, Some c2 ->
Buffer.add_char b (char_of_int ((c1 lsl 4) lor c2));
loop (i + 3)
| _ ->
loop (i + 1));
| '+' ->
Buffer.add_char b ' ';
loop (i + 1)
| c ->
Buffer.add_char b c;
loop (i + 1)
in
loop 0;
VString (Buffer.contents b)
);
"base_encode", Fun2 (fun s b ->
match s, b with
| VString s, VString "0123456789abcdef" when String.length s = 16 ->
VString (Digest.to_hex s)
| VString s, VString b ->
if String.length b <> 64 then assert false;
let tbl = Array.init 64 (String.unsafe_get b) in
VString (Base64.str_encode ~tbl s)
| _ -> error()
);
"base_decode", Fun2 (fun s b ->
let s = vstring s in
let b = vstring b in
if String.length b <> 64 then assert false;
let tbl = Array.init 64 (String.unsafe_get b) in
VString (Base64.str_decode ~tbl:(Base64.make_decoding_table tbl) s)
);
"make_md5", Fun1 (fun s ->
VString (Digest.string (vstring s))
);
(* sprintf *)
(* int32 *)
"int32_new", Fun1 (fun v ->
match v with
| VInt32 _ -> v
| VInt i -> make_i32 (Int32.of_int i)
| VFloat f -> make_i32 (Int32.of_float f)
| _ -> error()
);
"int32_to_int", Fun1 (fun v ->
let v = int32 v in
let i = Int32.to_int v in
if Int32.compare (Int32.of_int i) v <> 0 then error();
VInt i
);
"int32_to_float", Fun1 (fun v ->
VFloat (Int32.to_float (int32 v))
);
"int32_compare", Fun2 (fun a b ->
VInt (Int32.compare (int32 a) (int32 b))
);
"int32_add", int32_op Int32.add;
"int32_sub", int32_op Int32.sub;
"int32_mul", int32_op Int32.mul;
"int32_div", int32_op Int32.div;
"int32_shl", int32_op (fun a b -> Int32.shift_left a (Int32.to_int b));
"int32_shr", int32_op (fun a b -> Int32.shift_right a (Int32.to_int b));
"int32_ushr", int32_op (fun a b -> Int32.shift_right_logical a (Int32.to_int b));
"int32_mod", int32_op Int32.rem;
"int32_or", int32_op Int32.logor;
"int32_and", int32_op Int32.logand;
"int32_xor", int32_op Int32.logxor;
"int32_neg", Fun1 (fun v -> make_i32 (Int32.neg (int32 v)));
"int32_complement", Fun1 (fun v -> make_i32 (Int32.lognot (int32 v)));
(* misc *)
"same_closure", Fun2 (fun a b ->
VBool (match a, b with
| VClosure (la,fa), VClosure (lb,fb) ->
fa == fb && List.length la = List.length lb && List.for_all2 (fun a b -> (get_ctx()).do_compare a b = CEq) la lb
| VFunction a, VFunction b -> a == b
| _ -> false)
);
"double_bytes", Fun2 (fun f big ->
let f = (match f with VFloat f -> f | VInt i -> float_of_int i | _ -> error()) in
match big with
| VBool big ->
let ch = IO.output_string() in
if big then IO.BigEndian.write_double ch f else IO.write_double ch f;
VString (IO.close_out ch)
| _ ->
error()
);
"float_bytes", Fun2 (fun f big ->
let f = (match f with VFloat f -> f | VInt i -> float_of_int i | _ -> error()) in
match big with
| VBool big ->
let ch = IO.output_string() in
let i = Int32.bits_of_float f in
if big then IO.BigEndian.write_real_i32 ch i else IO.write_real_i32 ch i;
VString (IO.close_out ch)
| _ ->
error()
);
"double_of_bytes", Fun2 (fun s big ->
match s, big with
| VString s, VBool big when String.length s = 8 ->
let ch = IO.input_string s in
VFloat (if big then IO.BigEndian.read_double ch else IO.read_double ch)
| _ ->
error()
);
"float_of_bytes", Fun2 (fun s big ->
match s, big with
| VString s, VBool big when String.length s = 4 ->
let ch = IO.input_string s in
VFloat (Int32.float_of_bits (if big then IO.BigEndian.read_real_i32 ch else IO.read_real_i32 ch))
| _ ->
error()
);
(* random *)
"random_new", Fun0 (fun() -> VAbstract (ARandom (ref (Random.State.make_self_init()))));
"random_set_seed", Fun2 (fun r s ->
match r, s with
| VAbstract (ARandom r), VInt seed -> r := Random.State.make [|seed|]; VNull
| VAbstract (ARandom r), VInt32 seed -> r := Random.State.make [|Int32.to_int seed|]; VNull
| _ -> error()
);
"random_int", Fun2 (fun r s ->
match r, s with
| VAbstract (ARandom r), VInt max -> VInt (Random.State.int (!r) (if max <= 0 then 1 else max))
| _ -> error()
);
"random_float", Fun1 (fun r ->
match r with
| VAbstract (ARandom r) -> VFloat (Random.State.float (!r) 1.0)
| _ -> error()
);
(* file *)
"file_open", Fun2 (fun f r ->
match f, r with
| VString f, VString r ->
let perms = 0o666 in
VAbstract (match r with
| "r" -> AFRead (open_in_gen [Open_rdonly] 0 f,ref false)
| "rb" -> AFRead (open_in_gen [Open_rdonly;Open_binary] 0 f,ref false)
| "w" -> AFWrite (open_out_gen [Open_wronly;Open_creat;Open_trunc] perms f)
| "wb" -> AFWrite (open_out_gen [Open_wronly;Open_creat;Open_trunc;Open_binary] perms f)
| "a" -> AFWrite (open_out_gen [Open_append] perms f)
| "ab" -> AFWrite (open_out_gen [Open_append;Open_binary] perms f)
| _ -> error())
| _ -> error()
);
"file_close", Fun1 (fun vf ->
(match vf with
| VAbstract (AFRead (f,_)) -> close_in f; free_abstract vf;
| VAbstract (AFWrite f) -> close_out f; free_abstract vf;
| _ -> error());
VNull
);
(* file_name *)
"file_write", Fun4 (fun f s p l ->
match f, s, p, l with
| VAbstract (AFWrite f), VString s, VInt p, VInt l -> output f s p l; VInt l
| _ -> error()
);
"file_read", Fun4 (fun f s p l ->
match f, s, p, l with
| VAbstract (AFRead (f,r)), VString s, VInt p, VInt l ->
let n = input f s p l in
if n = 0 then begin
r := true;
exc (VArray [|VString "file_read"|]);
end;
VInt n
| _ -> error()
);
"file_write_char", Fun2 (fun f c ->
match f, c with
| VAbstract (AFWrite f), VInt c -> output_char f (char_of_int c); VNull
| _ -> error()
);
"file_read_char", Fun1 (fun f ->
match f with
| VAbstract (AFRead (f,r)) -> VInt (int_of_char (try input_char f with _ -> r := true; exc (VArray [|VString "file_read_char"|])))
| _ -> error()
);
"file_seek", Fun3 (fun f pos mode ->
match f, pos, mode with
| VAbstract (AFRead (f,r)), VInt pos, VInt mode ->
r := false;
seek_in f (match mode with 0 -> pos | 1 -> pos_in f + pos | 2 -> in_channel_length f + pos | _ -> error());
VNull;
| VAbstract (AFWrite f), VInt pos, VInt mode ->
seek_out f (match mode with 0 -> pos | 1 -> pos_out f + pos | 2 -> out_channel_length f + pos | _ -> error());
VNull;
| _ -> error()
);
"file_tell", Fun1 (fun f ->
match f with
| VAbstract (AFRead (f,_)) -> VInt (pos_in f)
| VAbstract (AFWrite f) -> VInt (pos_out f)
| _ -> error()
);
"file_eof", Fun1 (fun f ->
match f with
| VAbstract (AFRead (f,r)) ->
VBool !r
| _ -> error()
);
"file_flush", Fun1 (fun f ->
(match f with
| VAbstract (AFWrite f) -> flush f
| _ -> error());
VNull
);
"file_contents", Fun1 (fun f ->
match f with
| VString f -> VString (Std.input_file ~bin:true f)
| _ -> error()
);
"file_stdin", Fun0 (fun() -> VAbstract (AFRead (Pervasives.stdin, ref false)));
"file_stdout", Fun0 (fun() -> VAbstract (AFWrite Pervasives.stdout));
"file_stderr", Fun0 (fun() -> VAbstract (AFWrite Pervasives.stderr));
(* serialize *)
(* TODO *)
(* socket *)
"socket_init", Fun0 (fun() -> VNull);
"socket_new", Fun1 (fun v ->
match v with
| VBool b -> VAbstract (ASocket (Unix.socket PF_INET (if b then SOCK_DGRAM else SOCK_STREAM) 0));
| _ -> error()
);
"socket_close", Fun1 (fun vs ->
match vs with
| VAbstract (ASocket s) -> Unix.close s; free_abstract vs; VNull
| _ -> error()
);
"socket_send_char", Fun2 (fun s c ->
match s, c with
| VAbstract (ASocket s), VInt c when c >= 0 && c <= 255 ->
ignore(Unix.send s (String.make 1 (char_of_int c)) 0 1 []);
VNull
| _ -> error()
);
"socket_send", Fun4 (fun s buf pos len ->
match s, buf, pos, len with
| VAbstract (ASocket s), VString buf, VInt pos, VInt len -> VInt (Unix.send s buf pos len [])
| _ -> error()
);
"socket_recv", Fun4 (fun s buf pos len ->
match s, buf, pos, len with
| VAbstract (ASocket s), VString buf, VInt pos, VInt len -> VInt (Unix.recv s buf pos len [])
| _ -> error()
);
"socket_recv_char", Fun1 (fun s ->
match s with
| VAbstract (ASocket s) ->
let buf = String.make 1 '\000' in
ignore(Unix.recv s buf 0 1 []);
VInt (int_of_char (String.unsafe_get buf 0))
| _ -> error()
);
"socket_write", Fun2 (fun s str ->
match s, str with
| VAbstract (ASocket s), VString str ->
let pos = ref 0 in
let len = ref (String.length str) in
while !len > 0 do
let k = Unix.send s str (!pos) (!len) [] in
pos := !pos + k;
len := !len - k;
done;
VNull
| _ -> error()
);
"socket_read", Fun1 (fun s ->
match s with
| VAbstract (ASocket s) ->
let tmp = String.make 1024 '\000' in
let buf = Buffer.create 0 in
let rec loop() =
let k = (try Unix.recv s tmp 0 1024 [] with Unix_error _ -> 0) in
if k > 0 then begin
Buffer.add_substring buf tmp 0 k;
loop();
end
in
loop();
VString (Buffer.contents buf)
| _ -> error()
);
"host_resolve", Fun1 (fun s ->
let h = (try Unix.gethostbyname (vstring s) with Not_found -> error()) in
let addr = Unix.string_of_inet_addr h.h_addr_list.(0) in
let a, b, c, d = Scanf.sscanf addr "%d.%d.%d.%d" (fun a b c d -> a,b,c,d) in
VInt32 (Int32.logor (Int32.shift_left (Int32.of_int a) 24) (Int32.of_int (d lor (c lsl 8) lor (b lsl 16))))
);
"host_to_string", Fun1 (fun h ->
match h with
| VInt32 h -> VString (Unix.string_of_inet_addr (int32_addr h));
| _ -> error()
);
"host_reverse", Fun1 (fun h ->
match h with
| VInt32 h -> VString (gethostbyaddr (int32_addr h)).h_name
| _ -> error()
);
"host_local", Fun0 (fun() ->
VString (Unix.gethostname())
);
"socket_connect", Fun3 (fun s h p ->
match s, h, p with
| VAbstract (ASocket s), VInt32 h, VInt p ->
Unix.connect s (ADDR_INET (int32_addr h,p));
VNull
| _ -> error()
);
"socket_listen", Fun2 (fun s l ->
match s, l with
| VAbstract (ASocket s), VInt l ->
Unix.listen s l;
VNull
| _ -> error()
);
"socket_set_timeout", Fun2 (fun s t ->
match s with
| VAbstract (ASocket s) ->
let t = (match t with VNull -> 0. | VInt t -> float_of_int t | VFloat f -> f | _ -> error()) in
Unix.setsockopt_float s SO_RCVTIMEO t;
Unix.setsockopt_float s SO_SNDTIMEO t;
VNull
| _ -> error()
);
"socket_shutdown", Fun3 (fun s r w ->
match s, r, w with
| VAbstract (ASocket s), VBool r, VBool w ->
Unix.shutdown s (match r, w with true, true -> SHUTDOWN_ALL | true, false -> SHUTDOWN_RECEIVE | false, true -> SHUTDOWN_SEND | _ -> error());
VNull
| _ -> error()
);
(* TODO : select, bind, accept, peer, host *)
(* poll_alloc, poll : not planned *)
(* system *)
"get_env", Fun1 (fun v ->
try VString (Unix.getenv (vstring v)) with _ -> VNull
);
"put_env", Fun2 (fun e v ->
Unix.putenv (vstring e) (vstring v);
VNull
);
"sys_sleep", Fun1 (fun f ->
match f with
| VFloat f -> ignore(Unix.select [] [] [] f); VNull
| _ -> error()
);
"set_time_locale", Fun1 (fun l ->
match l with
| VString s -> VBool false (* always fail *)
| _ -> error()
);
"get_cwd", Fun0 (fun() ->
let dir = Unix.getcwd() in
let l = String.length dir in
VString (if l = 0 then "./" else match dir.[l - 1] with '/' | '\\' -> dir | _ -> dir ^ "/")
);
"set_cwd", Fun1 (fun s ->
Unix.chdir (vstring s);
VNull;
);
"sys_string", (
let cached_sys_name = ref None in
Fun0 (fun() ->
VString (match Sys.os_type with
| "Unix" ->
(match !cached_sys_name with
| Some n -> n
| None ->
let ic = Unix.open_process_in "uname" in
let uname = (match input_line ic with
| "Darwin" -> "Mac"
| n -> n
) in
close_in ic;
cached_sys_name := Some uname;
uname)
| "Win32" | "Cygwin" -> "Windows"
| s -> s)
)
);
"sys_is64", Fun0 (fun() ->
VBool (Sys.word_size = 64)
);
"sys_command", Fun1 (fun cmd ->
VInt (((get_ctx()).curapi.get_com()).run_command (vstring cmd))
);
"sys_exit", Fun1 (fun code ->
if (get_ctx()).curapi.use_cache() then raise (Typecore.Fatal_error ("",Ast.null_pos));
raise (Sys_exit(vint code));
);
"sys_exists", Fun1 (fun file ->
VBool (Sys.file_exists (vstring file))
);
"file_delete", Fun1 (fun file ->
Sys.remove (vstring file);
VNull;
);
"sys_rename", Fun2 (fun file target ->
Sys.rename (vstring file) (vstring target);
VNull;
);
"sys_stat", Fun1 (fun file ->
let s = Unix.stat (vstring file) in
VObject (obj (hash_field (get_ctx())) [
"gid", VInt s.st_gid;
"uid", VInt s.st_uid;
"atime", VInt32 (Int32.of_float s.st_atime);
"mtime", VInt32 (Int32.of_float s.st_mtime);
"ctime", VInt32 (Int32.of_float s.st_ctime);
"dev", VInt s.st_dev;
"ino", VInt s.st_ino;
"nlink", VInt s.st_nlink;
"rdev", VInt s.st_rdev;
"size", VInt s.st_size;
"mode", VInt s.st_perm;
])
);
"sys_file_type", Fun1 (fun file ->
VString (match (Unix.stat (vstring file)).st_kind with
| S_REG -> "file"
| S_DIR -> "dir"
| S_CHR -> "char"
| S_BLK -> "block"
| S_LNK -> "symlink"
| S_FIFO -> "fifo"
| S_SOCK -> "sock")
);
"sys_create_dir", Fun2 (fun dir mode ->
Unix.mkdir (vstring dir) (vint mode);
VNull
);
"sys_remove_dir", Fun1 (fun dir ->
Unix.rmdir (vstring dir);
VNull;
);
"sys_time", Fun0 (fun() ->
VFloat (Unix.gettimeofday())
);
"sys_cpu_time", Fun0 (fun() ->
VFloat (Sys.time())
);
"sys_read_dir", Fun1 (fun dir ->
let d = Sys.readdir (vstring dir) in
let rec loop acc i =
if i < 0 then
acc
else
loop (VArray [|VString d.(i);acc|]) (i - 1)
in
loop VNull (Array.length d - 1)
);
"file_full_path", Fun1 (fun file ->
VString (try Extc.get_full_path (vstring file) with _ -> error())
);
"sys_exe_path", Fun0 (fun() ->
VString (Sys.argv.(0))
);
"sys_env", Fun0 (fun() ->
let env = Unix.environment() in
let rec loop acc i =
if i < 0 then
acc
else
let e, v = ExtString.String.split env.(i) "=" in
loop (VArray [|VString e;VString v;acc|]) (i - 1)
in
loop VNull (Array.length env - 1)
);
"sys_getch", Fun1 (fun echo ->
match echo with
| VBool b -> VInt (Extc.getch b)
| _ -> error()
);
"sys_get_pid", Fun0 (fun() ->
VInt (Unix.getpid())
);
(* utf8 *)
"utf8_buf_alloc", Fun1 (fun v ->
VAbstract (AUtf8 (UTF8.Buf.create (vint v)))
);
"utf8_buf_add", Fun2 (fun b c ->
match b with
| VAbstract (AUtf8 buf) -> UTF8.Buf.add_char buf (UChar.chr_of_uint (vint c)); VNull
| _ -> error()
);
"utf8_buf_content", Fun1 (fun b ->
match b with
| VAbstract (AUtf8 buf) -> VString (UTF8.Buf.contents buf);
| _ -> error()
);
"utf8_buf_length", Fun1 (fun b ->
match b with
| VAbstract (AUtf8 buf) -> VInt (UTF8.length (UTF8.Buf.contents buf));
| _ -> error()
);
"utf8_buf_size", Fun1 (fun b ->
match b with
| VAbstract (AUtf8 buf) -> VInt (String.length (UTF8.Buf.contents buf));
| _ -> error()
);
"utf8_validate", Fun1 (fun s ->
VBool (try UTF8.validate (vstring s); true with UTF8.Malformed_code -> false)
);
"utf8_length", Fun1 (fun s ->
VInt (UTF8.length (vstring s))
);
"utf8_sub", Fun3 (fun s p l ->
let buf = UTF8.Buf.create 0 in
let pos = ref (-1) in
let p = vint p and l = vint l in
UTF8.iter (fun c ->
incr pos;
if !pos >= p && !pos < p + l then UTF8.Buf.add_char buf c;
) (vstring s);
VString (UTF8.Buf.contents buf)
);
"utf8_get", Fun2 (fun s p ->
VInt (UChar.uint_code (try UTF8.get (vstring s) (vint p) with _ -> error()))
);
"utf8_iter", Fun2 (fun s f ->
let ctx = get_ctx() in
UTF8.iter (fun c ->
ignore(ctx.do_call VNull f [VInt (UChar.uint_code c)] p);
) (vstring s);
VNull;
);
"utf8_compare", Fun2 (fun s1 s2 ->
VInt (UTF8.compare (vstring s1) (vstring s2))
);
(* thread *)
"thread_create", Fun2 (fun f p ->
exc (VString "Can't create thread from within a macro");
);
"tls_create", Fun0 (fun() ->
VAbstract (ATls (ref VNull))
);
"tls_get", Fun1 (fun t ->
match t with
| VAbstract (ATls r) -> !r
| _ -> error();
);
"tls_set", Fun2 (fun t v ->
match t with
| VAbstract (ATls r) -> r := v; VNull
| _ -> error();
);
(* lock, mutex, deque : not implemented *)
(* process *)
"process_run", (Fun2 (fun p args ->
match p, args with
| VString p, VArray args -> VAbstract (AProcess (Process.run p (Array.map vstring args)))
| _ -> error()
));
"process_stdout_read", (Fun4 (fun p str pos len ->
match p, str, pos, len with
| VAbstract (AProcess p), VString str, VInt pos, VInt len -> VInt (Process.read_stdout p str pos len)
| _ -> error()
));
"process_stderr_read", (Fun4 (fun p str pos len ->
match p, str, pos, len with
| VAbstract (AProcess p), VString str, VInt pos, VInt len -> VInt (Process.read_stderr p str pos len)
| _ -> error()
));
"process_stdin_write", (Fun4 (fun p str pos len ->
match p, str, pos, len with
| VAbstract (AProcess p), VString str, VInt pos, VInt len -> VInt (Process.write_stdin p str pos len)
| _ -> error()
));
"process_stdin_close", (Fun1 (fun p ->
match p with
| VAbstract (AProcess p) -> Process.close_stdin p; VNull
| _ -> error()
));
"process_exit", (Fun1 (fun p ->
match p with
| VAbstract (AProcess p) -> VInt (Process.exit p)
| _ -> error()
));
"process_pid", (Fun1 (fun p ->
match p with
| VAbstract (AProcess p) -> VInt (Process.pid p)
| _ -> error()
));
"process_close", (Fun1 (fun vp ->
match vp with
| VAbstract (AProcess p) -> Process.close p; free_abstract vp; VNull
| _ -> error()
));
(* xml *)
"parse_xml", (match neko with
| None -> Fun2 (fun str o ->
match str, o with
| VString str, VObject events ->
let ctx = get_ctx() in
let p = { psource = "parse_xml"; pline = 0 } in
let xml = get_field events (hash "xml") in
let don = get_field events (hash "done") in
let pcdata = get_field events (hash "pcdata") in
(*
Since we use the Xml parser, we don't have support for
- CDATA
- comments, prolog, doctype (allowed but skipped)
let cdata = get_field events (hash "cdata") in
let comment = get_field events (hash "comment") in
*)
let rec loop = function
| Xml.Element (node, attribs, children) ->
ignore(ctx.do_call o xml [VString node;VObject (obj (hash_field ctx) (List.map (fun (a,v) -> a, VString v) attribs))] p);
List.iter loop children;
ignore(ctx.do_call o don [] p);
| Xml.PCData s ->
ignore(ctx.do_call o pcdata [VString s] p);
in
let x = XmlParser.make() in
XmlParser.check_eof x false;
loop (try
XmlParser.parse x (XmlParser.SString str)
with Xml.Error e -> failwith ("Parser failure (" ^ Xml.error e ^ ")")
| e -> failwith ("Parser failure (" ^ Printexc.to_string e ^ ")"));
VNull
| _ -> error())
| Some neko ->
let parse_xml = neko.load "std@parse_xml" 2 in
Fun2 (fun str o -> neko.call parse_xml [str;o])
);
(* memory, module : not planned *)
]
(* process *)
@ (match neko with
| None -> []
| Some neko ->
let win_ec = (try Some (neko.load "std@win_env_changed" 0) with _ -> None) in
[
"win_env_changed", (Fun0 (fun() -> match win_ec with None -> error() | Some f -> neko.call f []));
]))
(* ---------------------------------------------------------------------- *)
(* REGEXP LIBRARY *)
let reg_lib =
let error() =
raise Builtin_error
in
(* try to load regexp first : we might fail if pcre is not installed *)
let neko = (match neko with
| None -> None
| Some neko ->
(try ignore(neko.load "regexp@regexp_new_options" 2); Some neko with _ -> None)
) in
match neko with
| None ->
make_library [
(* regexp_new : deprecated *)
"regexp_new_options", Fun2 (fun str opt ->
match str, opt with
| VString str, VString opt ->
let case_sensitive = ref true in
List.iter (function
| 'm' -> () (* always ON ? *)
| 'i' -> case_sensitive := false
| c -> failwith ("Unsupported regexp option '" ^ String.make 1 c ^ "'")
) (ExtString.String.explode opt);
let buf = Buffer.create 0 in
let rec loop prev esc = function
| [] -> ()
| c :: l when esc ->
(match c with
| 'n' -> Buffer.add_char buf '\n'
| 'r' -> Buffer.add_char buf '\r'
| 't' -> Buffer.add_char buf '\t'
| 'd' -> Buffer.add_string buf "[0-9]"
| '\\' -> Buffer.add_string buf "\\\\"
| '(' | ')' -> Buffer.add_char buf c
| '1'..'9' | '+' | '$' | '^' | '*' | '?' | '.' | '[' | ']' ->
Buffer.add_char buf '\\';
Buffer.add_char buf c;
| _ -> failwith ("Unsupported escaped char '" ^ String.make 1 c ^ "'"));
loop c false l
| c :: l ->
match c with
| '\\' -> loop prev true l
| '(' | '|' | ')' ->
Buffer.add_char buf '\\';
Buffer.add_char buf c;
loop c false l
| '?' when prev = '(' && (match l with ':' :: _ -> true | _ -> false) ->
failwith "Non capturing groups '(?:' are not supported in macros"
| '?' when prev = '*' ->
failwith "Ungreedy *? are not supported in macros"
| _ ->
Buffer.add_char buf c;
loop c false l
in
loop '\000' false (ExtString.String.explode str);
let str = Buffer.contents buf in
let r = {
r = if !case_sensitive then Str.regexp str else Str.regexp_case_fold str;
r_string = "";
r_groups = [||];
} in
VAbstract (AReg r)
| _ -> error()
);
"regexp_match", Fun4 (fun r str pos len ->
match r, str, pos, len with
| VAbstract (AReg r), VString str, VInt pos, VInt len ->
let nstr, npos, delta = (if len = String.length str - pos then str, pos, 0 else String.sub str pos len, 0, pos) in
(try
ignore(Str.search_forward r.r nstr npos);
let rec loop n =
if n = 9 then
[]
else try
(Some (Str.group_beginning n + delta, Str.group_end n + delta)) :: loop (n + 1)
with Not_found ->
None :: loop (n + 1)
| Invalid_argument _ ->
[]
in
r.r_string <- str;
r.r_groups <- Array.of_list (loop 0);
VBool true;
with Not_found ->
VBool false)
| _ -> error()
);
"regexp_matched", Fun2 (fun r n ->
match r, n with
| VAbstract (AReg r), VInt n ->
(match (try r.r_groups.(n) with _ -> failwith ("Invalid group " ^ string_of_int n)) with
| None -> VNull
| Some (pos,pend) -> VString (String.sub r.r_string pos (pend - pos)))
| _ -> error()
);
"regexp_matched_pos", Fun2 (fun r n ->
match r, n with
| VAbstract (AReg r), VInt n ->
(match (try r.r_groups.(n) with _ -> failwith ("Invalid group " ^ string_of_int n)) with
| None -> VNull
| Some (pos,pend) -> VObject (obj (hash_field (get_ctx())) ["pos",VInt pos;"len",VInt (pend - pos)]))
| _ -> error()
);
(* regexp_replace : not used by Haxe *)
(* regexp_replace_all : not used by Haxe *)
(* regexp_replace_fun : not used by Haxe *)
]
| Some neko ->
let regexp_new_options = neko.load "regexp@regexp_new_options" 2 in
let regexp_match = neko.load "regexp@regexp_match" 4 in
let regexp_matched = neko.load "regexp@regexp_matched" 2 in
let regexp_matched_pos = neko.load "regexp@regexp_matched_pos" 2 in
make_library [
"regexp_new_options", Fun2 (fun str opt -> neko.call regexp_new_options [str;opt]);
"regexp_match", Fun4 (fun r str pos len -> neko.call regexp_match [r;str;pos;len]);
"regexp_matched", Fun2 (fun r n -> neko.call regexp_matched [r;n]);
"regexp_matched_pos", Fun2 (fun r n -> neko.call regexp_matched_pos [r;n]);
]
(* ---------------------------------------------------------------------- *)
(* ZLIB LIBRARY *)
let z_lib =
let error() =
raise Builtin_error
in
make_library [
"inflate_init", Fun1 (fun f ->
let z = Extc.zlib_inflate_init2 (match f with VNull -> 15 | VInt i -> i | _ -> error()) in
VAbstract (AZipI { z = z; z_flush = Extc.Z_NO_FLUSH })
);
"deflate_init", Fun1 (fun f ->
let z = Extc.zlib_deflate_init (match f with VInt i -> i | _ -> error()) in
VAbstract (AZipD { z = z; z_flush = Extc.Z_NO_FLUSH })
);
"deflate_end", Fun1 (fun vz ->
match vz with
| VAbstract (AZipD z) -> Extc.zlib_deflate_end z.z; free_abstract vz; VNull;
| _ -> error()
);
"inflate_end", Fun1 (fun vz ->
match vz with
| VAbstract (AZipI z) -> Extc.zlib_inflate_end z.z; free_abstract vz; VNull;
| _ -> error()
);
"set_flush_mode", Fun2 (fun z f ->
match z, f with
| VAbstract (AZipI z | AZipD z), VString s ->
z.z_flush <- (match s with
| "NO" -> Extc.Z_NO_FLUSH
| "SYNC" -> Extc.Z_SYNC_FLUSH
| "FULL" -> Extc.Z_FULL_FLUSH
| "FINISH" -> Extc.Z_FINISH
| "BLOCK" -> Extc.Z_PARTIAL_FLUSH
| _ -> error());
VNull;
| _ -> error()
);
"inflate_buffer", Fun5 (fun z src pos dst dpos ->
match z, src, pos, dst, dpos with
| VAbstract (AZipI z), VString src, VInt pos, VString dst, VInt dpos ->
let r = Extc.zlib_inflate z.z src pos (String.length src - pos) dst dpos (String.length dst - dpos) z.z_flush in
VObject (obj (hash_field (get_ctx())) [
"done", VBool r.Extc.z_finish;
"read", VInt r.Extc.z_read;
"write", VInt r.Extc.z_wrote;
])
| _ -> error()
);
"deflate_buffer", Fun5 (fun z src pos dst dpos ->
match z, src, pos, dst, dpos with
| VAbstract (AZipD z), VString src, VInt pos, VString dst, VInt dpos ->
let r = Extc.zlib_deflate z.z src pos (String.length src - pos) dst dpos (String.length dst - dpos) z.z_flush in
VObject (obj (hash_field (get_ctx())) [
"done", VBool r.Extc.z_finish;
"read", VInt r.Extc.z_read;
"write", VInt r.Extc.z_wrote;
])
| _ -> error()
);
"deflate_bound", Fun2 (fun z size ->
match z, size with
| VAbstract (AZipD z), VInt size -> VInt (size + 1024)
| _ -> error()
);
]
(* ---------------------------------------------------------------------- *)
(* MACRO LIBRARY *)
(* convert float value to haxe expression, handling inf/-inf/nan *)
let haxe_float f p =
let std = (Ast.EConst (Ast.Ident "std"), p) in
let math = (Ast.EField (std, "Math"), p) in
if (f = infinity) then
(Ast.EField (math, "POSITIVE_INFINITY"), p)
else if (f = neg_infinity) then
(Ast.EField (math, "NEGATIVE_INFINITY"), p)
else if (f <> f) then
(Ast.EField (math, "NaN"), p)
else
(Ast.EConst (Ast.Float (float_repres f)), p)
let macro_lib =
let error() =
raise Builtin_error
in
let ccom() =
(get_ctx()).curapi.get_com()
in
make_library [
"curpos", Fun0 (fun() -> VAbstract (APos (get_ctx()).curapi.pos));
"error", Fun2 (fun msg p ->
match msg, p with
| VString s, VAbstract (APos p) ->
(ccom()).Common.error s p;
raise Abort
| _ -> error()
);
"fatal_error", Fun2 (fun msg p ->
match msg, p with
| VString s, VAbstract (APos p) ->
raise (Typecore.Fatal_error (s,p))
| _ -> error()
);
"warning", Fun2 (fun msg p ->
match msg, p with
| VString s, VAbstract (APos p) ->
(ccom()).warning s p;
VNull;
| _ -> error()
);
"class_path", Fun0 (fun() ->
VArray (Array.of_list (List.map (fun s -> VString s) (ccom()).class_path));
);
"resolve", Fun1 (fun file ->
match file with
| VString s -> VString (try Common.find_file (ccom()) s with Not_found -> failwith ("File not found '" ^ s ^ "'"))
| _ -> error();
);
"define", Fun1 (fun s ->
match s with
| VString s -> Common.raw_define (ccom()) s; VNull
| _ -> error();
);
"defined", Fun1 (fun s ->
match s with
| VString s -> VBool (Common.raw_defined (ccom()) s)
| _ -> error();
);
"defined_value", Fun1 (fun s ->
match s with
| VString s -> (try VString (Common.raw_defined_value (ccom()) s) with Not_found -> VNull)
| _ -> error();
);
"get_defines", Fun0 (fun() ->
let defines = (ccom()).defines in
let h = Hashtbl.create 0 in
PMap.iter (fun n v -> Hashtbl.replace h (VString n) (VString v)) defines;
enc_hash h
);
"get_type", Fun1 (fun s ->
match s with
| VString s ->
(match (get_ctx()).curapi.get_type s with
| None -> failwith ("Type not found '" ^ s ^ "'")
| Some t -> encode_type t)
| _ -> error()
);
"get_module", Fun1 (fun s ->
match s with
| VString s ->
enc_array (List.map encode_type ((get_ctx()).curapi.get_module s))
| _ -> error()
);
"on_generate", Fun1 (fun f ->
match f with
| VFunction (Fun1 _) ->
let ctx = get_ctx() in
ctx.curapi.on_generate (fun tl ->
ignore(catch_errors ctx (fun() -> ctx.do_call VNull f [enc_array (List.map encode_type tl)] null_pos));
);
VNull
| _ -> error()
);
"after_generate", Fun1 (fun f ->
match f with
| VFunction (Fun0 _) ->
let ctx = get_ctx() in
ctx.curapi.after_generate (fun () ->
ignore(catch_errors ctx (fun() -> ctx.do_call VNull f [] null_pos));
);
VNull
| _ -> error()
);
"on_type_not_found", Fun1 (fun f ->
match f with
| VFunction (Fun1 _) ->
let ctx = get_ctx() in
ctx.curapi.on_type_not_found (fun path ->
match catch_errors ctx (fun () -> ctx.do_call VNull f [enc_string path] null_pos) with
| Some v -> v
| None -> VNull
);
VNull
| _ -> error()
);
"parse", Fun3 (fun s p b ->
match s, p, b with
| VString s, VAbstract (APos p), VBool b when s <> "" ->
(try encode_expr ((get_ctx()).curapi.parse_string s p b) with Invalid_expr -> error())
| _ -> error()
);
"make_expr", Fun2 (fun v p ->
match p with
| VAbstract (APos p) ->
let h_enum = hash "__enum__" and h_et = hash "__et__" and h_ct = hash "__ct__" in
let h_tag = hash "tag" and h_args = hash "args" in
let h_length = hash "length" in
let ctx = get_ctx() in
let error v = failwith ("Unsupported value " ^ ctx.do_string v) in
let make_path t =
let rec loop = function
| [] -> assert false
| [name] -> (Ast.EConst (Ast.Ident name),p)
| name :: l -> (Ast.EField (loop l,name),p)
in
let t = t_infos t in
loop (List.rev (if t.mt_module.m_path = t.mt_path then fst t.mt_path @ [snd t.mt_path] else fst t.mt_module.m_path @ [snd t.mt_module.m_path;snd t.mt_path]))
in
let rec loop = function
| VNull -> (Ast.EConst (Ast.Ident "null"),p)
| VBool b -> (Ast.EConst (Ast.Ident (if b then "true" else "false")),p)
| VInt i -> (Ast.EConst (Ast.Int (string_of_int i)),p)
| VInt32 i -> (Ast.EConst (Ast.Int (Int32.to_string i)),p)
| VFloat f -> haxe_float f p
| VAbstract (APos p) ->
(Ast.EObjectDecl (
("fileName" , (Ast.EConst (Ast.String p.Ast.pfile) , p)) ::
("lineNumber" , (Ast.EConst (Ast.Int (string_of_int (Lexer.get_error_line p))),p)) ::
("className" , (Ast.EConst (Ast.String ("")),p)) ::
[]
), p)
| VString _ | VArray _ | VAbstract _ | VFunction _ | VClosure _ as v -> error v
| VObject o as v ->
match o.oproto with
| None ->
(match get_field_opt o h_ct with
| Some (VAbstract (ATDecl t)) ->
make_path t
| _ ->
let fields = List.fold_left (fun acc (fid,v) -> (field_name ctx fid, loop v) :: acc) [] (Array.to_list o.ofields) in
(Ast.EObjectDecl fields, p))
| Some proto ->
match get_field_opt proto h_enum, get_field_opt o h_a, get_field_opt o h_s, get_field_opt o h_length with
| _, Some (VArray a), _, Some (VInt len) ->
(Ast.EArrayDecl (List.map loop (Array.to_list (Array.sub a 0 len))),p)
| _, _, Some (VString s), _ ->
(Ast.EConst (Ast.String s),p)
| Some (VObject en), _, _, _ ->
(match get_field en h_et, get_field o h_tag with
| VAbstract (ATDecl t), VString tag ->
let e = (Ast.EField (make_path t,tag),p) in
(match get_field_opt o h_args with
| Some (VArray args) ->
let args = List.map loop (Array.to_list args) in
(Ast.ECall (e,args),p)
| _ -> e)
| _ ->
error v)
| _ ->
error v
in
encode_expr (loop v)
| _ -> error()
);
"signature", Fun1 (fun v ->
let cache = ref [] in
let cache_count = ref 0 in
let hfiles = Hashtbl.create 0 in
let get_file f =
try
Hashtbl.find hfiles f
with Not_found ->
let ff = Common.unique_full_path f in
Hashtbl.add hfiles f ff;
ff
in
let do_cache (v:value) (v2:value) =
(*
tricky : we need to have a quick not-linear cache based on objects address
but we can't use address since the GC might be triggered here.
Instead let's mutate the object temporary.
*)
let vt = Obj.repr v in
let old = Obj.tag vt in
let old_val = Obj.field vt 0 in
let abstract_tag = 7 in
Obj.set_tag vt abstract_tag;
Obj.set_field vt 0 (Obj.repr (ACacheRef v2));
cache := (vt,old,old_val) :: !cache;
incr cache_count
in
let rec loop v =
match v with
| VNull | VBool _ | VInt _ | VFloat _ | VString _ | VInt32 _ -> v
| VObject o ->
let o2 = { ofields = [||]; oproto = None } in
let v2 = VObject o2 in
do_cache v v2;
Array.iter (fun (f,v) -> if f <> h_class then set_field o2 f (loop v)) o.ofields;
(match o.oproto with
| None -> ()
| Some p -> (match loop (VObject p) with VObject p2 -> o2.oproto <- Some p2 | _ -> assert false));
v2
| VArray a ->
let a2 = Array.create (Array.length a) VNull in
let v2 = VArray a2 in
do_cache v v2;
for i = 0 to Array.length a - 1 do
a2.(i) <- loop a.(i);
done;
v2
| VFunction f ->
let v2 = VFunction (Obj.magic !cache_count) in
do_cache v v2;
v2
| VClosure (vl,f) ->
let rl = ref [] in
let v2 = VClosure (Obj.magic rl, Obj.magic !cache_count) in
(* in ocaml 4.0+ it was reported some stack overflow, related to vl being GC'ed or mutated in do_cache.
let's make sure to have a real pointer to it first. The fix will trigger an alloc which might have simply moved the problem away *)
let vl = VNull :: vl in
do_cache v v2;
rl := List.map loop vl;
v2
| VAbstract (APos p) -> VAbstract (APos { p with Ast.pfile = get_file p.Ast.pfile })
| VAbstract (ACacheRef v) -> v
| VAbstract (AHash h) ->
let h2 = Hashtbl.create 0 in
let v2 = VAbstract (AHash h2) in
do_cache v v2;
Hashtbl.iter (fun k v -> Hashtbl.add h2 k (loop v)) h2;
v2
| VAbstract _ ->
let v2 = VAbstract (Obj.magic !cache_count) in
do_cache v v2;
v2
in
let v = loop v in
(* restore *)
List.iter (fun (vt,tag,field) ->
Obj.set_tag vt tag;
Obj.set_field vt 0 field;
) !cache;
VString (Digest.to_hex (Digest.string (Marshal.to_string v [Marshal.Closures])))
);
"to_complex", Fun1 (fun v ->
try encode_complex_type (make_complex_type (decode_type v))
with Exit -> VNull
);
"unify", Fun2 (fun t1 t2 ->
let e1 = mk (TObjectDecl []) (decode_type t1) Ast.null_pos in
try ignore(((get_ctx()).curapi.cast_or_unify) (decode_type t2) e1 Ast.null_pos); VBool true
with Typecore.Error (Typecore.Unify _,_) -> VBool false
);
"typeof", Fun1 (fun v ->
encode_type ((get_ctx()).curapi.type_expr (decode_expr v)).etype
);
"type_expr", Fun1 (fun v ->
encode_texpr ((get_ctx()).curapi.type_expr (decode_expr v))
);
"s_type", Fun1 (fun v ->
VString (Type.s_type (print_context()) (decode_type v))
);
"s_expr", Fun2 (fun v b ->
let f = match b with VBool true -> Type.s_expr_pretty "" | _ -> Type.s_expr_ast true "" in
VString (f (Type.s_type (print_context())) (decode_texpr v))
);
"is_fmt_string", Fun1 (fun v ->
match v with
| VAbstract (APos p) -> VBool(Lexer.is_fmt_string p)
| _ -> VNull
);
"format_string", Fun2 (fun s p ->
match s,p with
| VString(s),VAbstract(APos p) -> encode_expr ((get_ctx()).curapi.format_string s p)
| _ -> VNull
);
"display", Fun1 (fun v ->
match v with
| VString s ->
VString ((get_ctx()).curapi.get_display s)
| _ ->
error()
);
"allow_package", Fun1 (fun v ->
match v with
| VString s ->
(get_ctx()).curapi.allow_package s;
VNull
| _ -> error());
"type_patch", Fun4 (fun t f s v ->
let p = (get_ctx()).curapi.type_patch in
(match t, f, s, v with
| VString t, VString f, VBool s, VString v -> p t f s (Some v)
| VString t, VString f, VBool s, VNull -> p t f s None
| _ -> error());
VNull
);
"meta_patch", Fun4 (fun m t f s ->
let p = (get_ctx()).curapi.meta_patch in
(match m, t, f, s with
| VString m, VString t, VString f, VBool s -> p m t (Some f) s
| VString m, VString t, VNull, VBool s -> p m t None s
| _ -> error());
VNull
);
"add_global_metadata", Fun5 (fun v1 v2 v3 v4 v5 ->
match v1,v2,v3,v4,v5 with
| VString s1,VString s2,VBool b1,VBool b2,VBool b3 ->
(get_ctx()).curapi.add_global_metadata s1 s2 (b1,b2,b3);
VNull
| _ ->
error()
);
"custom_js", Fun1 (fun f ->
match f with
| VFunction (Fun1 _) ->
let ctx = get_ctx() in
ctx.curapi.set_js_generator (fun api ->
ignore(catch_errors ctx (fun() -> ctx.do_call VNull f [api] null_pos));
);
VNull
| _ -> error()
);
"get_pos_infos", Fun1 (fun p ->
match p with
| VAbstract (APos p) -> VObject (obj (hash_field (get_ctx())) ["min",VInt p.Ast.pmin;"max",VInt p.Ast.pmax;"file",VString p.Ast.pfile])
| _ -> error()
);
"make_pos", Fun3 (fun min max file ->
match min, max, file with
| VInt min, VInt max, VString file -> VAbstract (APos { Ast.pmin = min; Ast.pmax = max; Ast.pfile = file })
| _ -> error()
);
"add_resource", Fun2 (fun name data ->
match name, data with
| VString name, VString data ->
Hashtbl.replace (ccom()).resources name data;
let m = (get_ctx()).curapi.current_module() in
m.m_extra.m_binded_res <- PMap.add name data m.m_extra.m_binded_res;
VNull
| _ -> error()
);
"get_resources", Fun0 (fun() ->
let res = (ccom()).resources in
let h = Hashtbl.create 0 in
Hashtbl.iter (fun n v -> Hashtbl.replace h (VString n) (VString v)) res;
enc_hash h
);
"local_module", Fun0 (fun() ->
let m = (get_ctx()).curapi.current_module() in
VString (Ast.s_type_path m.m_path);
);
"local_type", Fun0 (fun() ->
match (get_ctx()).curapi.get_local_type() with
| None -> VNull
| Some t -> encode_type t
);
"expected_type", Fun0 (fun() ->
match (get_ctx()).curapi.get_expected_type() with
| None -> VNull
| Some t -> encode_type t
);
"call_arguments", Fun0 (fun() ->
match (get_ctx()).curapi.get_call_arguments() with
| None -> VNull
| Some el -> enc_array (List.map encode_expr el)
);
"local_method", Fun0 (fun() ->
VString ((get_ctx()).curapi.get_local_method())
);
"local_using", Fun0 (fun() ->
enc_array (List.map encode_clref ((get_ctx()).curapi.get_local_using()))
);
"local_vars", Fun1 (fun as_var ->
let as_var = match as_var with
| VNull | VBool false -> false
| VBool true -> true
| _ -> error()
in
let vars = (get_ctx()).curapi.get_local_vars() in
let h = Hashtbl.create 0 in
if as_var then
PMap.iter (fun n v -> Hashtbl.replace h (VString n) (encode_tvar v)) vars
else
PMap.iter (fun n v -> Hashtbl.replace h (VString n) (encode_type v.v_type)) vars;
enc_hash h
);
"follow", Fun2 (fun v once ->
let t = decode_type v in
let follow_once t =
match t with
| TMono r ->
(match !r with
| None -> t
| Some t -> t)
| TAbstract _ | TEnum _ | TInst _ | TFun _ | TAnon _ | TDynamic _ ->
t
| TType (t,tl) ->
apply_params t.t_params tl t.t_type
| TLazy f ->
(!f)()
in
encode_type (match once with VNull | VBool false -> follow t | VBool true -> follow_once t | _ -> error())
);
"build_fields", Fun0 (fun() ->
(get_ctx()).curapi.get_build_fields()
);
"define_type", Fun1 (fun v ->
(get_ctx()).curapi.define_type v;
VNull
);
"define_module", Fun4 (fun p v i u ->
match p, v, i, u with
| VString path, VArray vl, VArray ui, VArray ul ->
(get_ctx()).curapi.define_module path (Array.to_list vl) (List.map decode_import (Array.to_list ui)) (List.map decode_path (Array.to_list ul));
VNull
| _ ->
error()
);
"add_class_path", Fun1 (fun v ->
match v with
| VString cp ->
let com = ccom() in
com.class_path <- (Common.normalize_path cp) :: com.class_path;
Hashtbl.clear com.file_lookup_cache;
VNull
| _ ->
error()
);
"add_native_lib", Fun1 (fun v ->
match v with
| VString file ->
let com = ccom() in
(match com.platform with
| Flash -> Genswf.add_swf_lib com file false
| Java -> Genjava.add_java_lib com file false
| Cs ->
let file, is_std = match ExtString.String.nsplit file "@" with
| [file] ->
file,false
| [file;"std"] ->
file,true
| _ -> failwith ("unsupported file@`std` format: " ^ file)
in
Gencs.add_net_lib com file is_std
| _ -> failwith "Unsupported platform");
VNull
| _ ->
error()
);
"add_native_arg", Fun1 (fun v ->
match v with
| VString arg ->
let com = ccom() in
(match com.platform with
| Java | Cs | Cpp ->
com.c_args <- arg :: com.c_args
| _ -> failwith "Unsupported platform");
VNull
| _ ->
error()
);
"module_dependency", Fun2 (fun m file ->
match m, file with
| VString m, VString file ->
(get_ctx()).curapi.module_dependency m file false;
VNull
| _ -> error()
);
"module_reuse_call", Fun2 (fun m mcall ->
match m, mcall with
| VString m, VString mcall ->
(get_ctx()).curapi.module_dependency m mcall true;
VNull
| _ -> error()
);
"get_typed_expr", Fun1 (fun e ->
let e = decode_texpr e in
encode_expr (make_ast e)
);
"store_typed_expr", Fun1 (fun e ->
let e = try decode_texpr e with Invalid_expr -> error() in
encode_expr ((get_ctx()).curapi.store_typed_expr e)
);
"get_output", Fun0 (fun() ->
VString (ccom()).file
);
"set_output", Fun1 (fun s ->
match s with
| VString s -> (ccom()).file <- s; VNull
| _ -> error()
);
"get_display_pos", Fun0 (fun() ->
let p = !Parser.resume_display in
if p = Ast.null_pos then
VNull
else
VObject (obj (hash_field (get_ctx())) ["file",VString p.Ast.pfile;"pos",VInt p.Ast.pmin])
);
"pattern_locals", Fun2 (fun e t ->
let loc = (get_ctx()).curapi.get_pattern_locals (decode_expr e) (decode_type t) in
let h = Hashtbl.create 0 in
PMap.iter (fun n (v,_) -> Hashtbl.replace h (VString n) (encode_type v.v_type)) loc;
enc_hash h
);
"macro_context_reused", Fun1 (fun c ->
match c with
| VFunction (Fun0 _) ->
let ctx = get_ctx() in
ctx.on_reused <- (fun() -> catch_errors ctx (fun() -> ctx.do_call VNull c [] null_pos) = Some (VBool true)) :: ctx.on_reused;
VNull
| _ -> error()
);
"apply_params", Fun3 (fun tpl tl t ->
let tpl = List.map (fun v ->
match v with
| VObject o ->
let name = match get_field o (hash "name") with VString s -> s | _ -> assert false in
let t = decode_type (get_field o (hash "t")) in
name,t
| _ -> assert false
) (dec_array tpl) in
let tl = List.map decode_type (dec_array tl) in
let rec map t = match t with
| TInst({cl_kind = KTypeParameter _},_) ->
begin try
(* use non-physical equality check here to make apply_params work *)
snd (List.find (fun (_,t2) -> type_iseq t t2) tpl)
with Not_found ->
Type.map map t
end
| _ -> Type.map map t
in
encode_type (apply_params tpl tl (map (decode_type t)))
);
]
(* ---------------------------------------------------------------------- *)
(* EVAL *)
let throw ctx p msg =
ctx.callstack <- { cpos = p; cthis = ctx.vthis; cstack = DynArray.length ctx.stack; cenv = ctx.venv } :: ctx.callstack;
exc (VString msg)
let declare ctx var =
ctx.locals_map <- PMap.add var ctx.locals_count ctx.locals_map;
ctx.locals_count <- ctx.locals_count + 1
let save_locals ctx =
let old, oldcount = ctx.locals_map, ctx.locals_count in
(fun() ->
let n = ctx.locals_count - oldcount in
ctx.locals_count <- oldcount;
ctx.locals_map <- old;
n;
)
let get_ident ctx s =
try
let index = PMap.find s ctx.locals_map in
if index >= ctx.locals_barrier then
AccLocal (ctx.locals_count - index)
else (try
AccEnv (DynArray.index_of (fun s2 -> s = s2) ctx.locals_env)
with Not_found ->
let index = DynArray.length ctx.locals_env in
DynArray.add ctx.locals_env s;
AccEnv index
)
with Not_found -> try
AccGlobal (PMap.find s ctx.globals)
with Not_found ->
let g = ref VNull in
ctx.globals <- PMap.add s g ctx.globals;
AccGlobal g
let no_env = [||]
let rec eval ctx (e,p) =
match e with
| EConst c ->
(match c with
| True -> (fun() -> VBool true)
| False -> (fun() -> VBool false)
| Null -> (fun() -> VNull)
| This -> (fun() -> ctx.vthis)
| Int i -> (fun() -> VInt i)
| Int32 i -> (fun() -> VInt32 i)
| Float f ->
let f = float_of_string f in
(fun() -> VFloat f)
| String s -> (fun() -> VString s)
| Builtin "loader" ->
(fun() -> ctx.loader)
| Builtin "exports" ->
(fun() -> ctx.exports)
| Builtin s ->
let b = (try Hashtbl.find builtins s with Not_found -> throw ctx p ("Builtin not found '" ^ s ^ "'")) in
(fun() -> b)
| Ident s ->
acc_get ctx p (get_ident ctx s))
| EBlock el ->
let old = save_locals ctx in
let el = List.map (eval ctx) el in
let n = old() in
let rec loop = function
| [] -> VNull
| [e] -> e()
| e :: l ->
ignore(e());
loop l
in
(fun() ->
let v = loop el in
pop ctx n;
v)
| EParenthesis e ->
eval ctx e
| EField (e,f) ->
let e = eval ctx e in
let h = hash_field ctx f in
(fun() ->
match e() with
| VObject o -> get_field o h
| _ -> throw ctx p ("Invalid field access : " ^ f)
)
| ECall ((EConst (Builtin "mk_pos"),_),[(ECall (_,[EConst (String file),_]),_);(EConst (Int min),_);(EConst (Int max),_)]) ->
let pos = VAbstract (APos { Ast.pfile = file; Ast.pmin = min; Ast.pmax = max }) in
(fun() -> pos)
| ECall ((EConst (Builtin "typewrap"),_),[t]) ->
(fun() -> VAbstract (ATDecl (Obj.magic t)))
| ECall ((EConst (Builtin "delay_call"),_),[EConst (Int index),_]) ->
let f = ctx.curapi.delayed_macro index in
let fbuild = ref None in
let old = { ctx with gen = ctx.gen } in
let compile_delayed_call() =
let oldl, oldc, oldb, olde = ctx.locals_map, ctx.locals_count, ctx.locals_barrier, ctx.locals_env in
ctx.locals_map <- old.locals_map;
ctx.locals_count <- old.locals_count;
ctx.locals_barrier <- old.locals_barrier;
ctx.locals_env <- DynArray.copy old.locals_env;
let save = save_locals ctx in
let e = f() in
let n = save() in
let e = if DynArray.length ctx.locals_env = DynArray.length old.locals_env then
e
else
let n = DynArray.get ctx.locals_env (DynArray.length ctx.locals_env - 1) in
(fun() -> exc (VString ("Macro-in-macro call can't access to closure variable '" ^ n ^ "'")))
in
ctx.locals_map <- oldl;
ctx.locals_count <- oldc;
ctx.locals_barrier <- oldb;
ctx.locals_env <- olde;
(fun() ->
let v = e() in
pop ctx n;
v
)
in
(fun() ->
let e = (match !fbuild with
| Some e -> e
| None ->
let e = compile_delayed_call() in
fbuild := Some e;
e
) in
e())
| ECall (e,el) ->
let el = List.map (eval ctx) el in
(match fst e with
| EField (e,f) ->
let e = eval ctx e in
let h = hash_field ctx f in
(fun() ->
let pl = List.map (fun f -> f()) el in
let o = e() in
let f = (match o with
| VObject o -> get_field o h
| _ -> throw ctx p ("Invalid field access : " ^ f)
) in
call ctx o f pl p
)
| _ ->
let e = eval ctx e in
(fun() ->
let pl = List.map (fun f -> f()) el in
call ctx ctx.vthis (e()) pl p
))
| EArray (e1,e2) ->
let e1 = eval ctx e1 in
let e2 = eval ctx e2 in
let acc = AccArray (e1,e2) in
acc_get ctx p acc
| EVars vl ->
let vl = List.map (fun (v,eo) ->
let eo = (match eo with None -> (fun() -> VNull) | Some e -> eval ctx e) in
declare ctx v;
eo
) vl in
(fun() ->
List.iter (fun e -> push ctx (e())) vl;
VNull
)
| EWhile (econd,e,NormalWhile) ->
let econd = eval ctx econd in
let e = eval ctx e in
let rec loop st =
match econd() with
| VBool true ->
let v = (try
ignore(e()); None
with
| Continue -> pop ctx (DynArray.length ctx.stack - st); None
| Break v -> pop ctx (DynArray.length ctx.stack - st); Some v
) in
(match v with
| None -> loop st
| Some v -> v)
| _ ->
VNull
in
(fun() -> try loop (DynArray.length ctx.stack) with Sys.Break -> throw ctx p "Ctrl+C")
| EWhile (econd,e,DoWhile) ->
let e = eval ctx e in
let econd = eval ctx econd in
let rec loop st =
let v = (try
ignore(e()); None
with
| Continue -> pop ctx (DynArray.length ctx.stack - st); None
| Break v -> pop ctx (DynArray.length ctx.stack - st); Some v
) in
match v with
| Some v -> v
| None ->
match econd() with
| VBool true -> loop st
| _ -> VNull
in
(fun() -> loop (DynArray.length ctx.stack))
| EIf (econd,eif,eelse) ->
let econd = eval ctx econd in
let eif = eval ctx eif in
let eelse = (match eelse with None -> (fun() -> VNull) | Some e -> eval ctx e) in
(fun() ->
match econd() with
| VBool true -> eif()
| _ -> eelse()
)
| ETry (e,exc,ecatch) ->
let old = save_locals ctx in
let e = eval ctx e in
let n1 = old() in
declare ctx exc;
let ecatch = eval ctx ecatch in
let n2 = old() in
(fun() ->
let vthis = ctx.vthis in
let venv = ctx.venv in
let stack = ctx.callstack in
let csize = ctx.callsize in
let size = DynArray.length ctx.stack in
try
pop_ret ctx e n1
with Runtime v ->
let rec loop n l =
if n = 0 then List.map (fun s -> s.cpos) l else
match l with
| [] -> []
| _ :: l -> loop (n - 1) l
in
ctx.exc <- loop (List.length stack) (List.rev ctx.callstack);
ctx.callstack <- stack;
ctx.callsize <- csize;
ctx.vthis <- vthis;
ctx.venv <- venv;
pop ctx (DynArray.length ctx.stack - size);
push ctx v;
pop_ret ctx ecatch n2
)
| EFunction (pl,e) ->
let old = save_locals ctx in
let oldb, oldenv = ctx.locals_barrier, ctx.locals_env in
ctx.locals_barrier <- ctx.locals_count;
ctx.locals_env <- DynArray.create();
List.iter (declare ctx) pl;
let e = eval ctx e in
ignore(old());
let env = ctx.locals_env in
ctx.locals_barrier <- oldb;
ctx.locals_env <- oldenv;
let env = DynArray.to_array (DynArray.map (fun s ->
acc_get ctx p (get_ident ctx s)) env
) in
let init_env = if Array.length env = 0 then
(fun() -> no_env)
else
(fun() -> Array.map (fun e -> e()) env)
in
(match pl with
| [] ->
(fun() ->
let env = init_env() in
VFunction (Fun0 (fun() ->
ctx.venv <- env;
e())))
| [a] ->
(fun() ->
let env = init_env() in
VFunction (Fun1 (fun v ->
ctx.venv <- env;
push ctx v;
e();
)))
| [a;b] ->
(fun() ->
let env = init_env() in
VFunction (Fun2 (fun va vb ->
ctx.venv <- env;
push ctx va;
push ctx vb;
e();
)))
| [a;b;c] ->
(fun() ->
let env = init_env() in
VFunction (Fun3 (fun va vb vc ->
ctx.venv <- env;
push ctx va;
push ctx vb;
push ctx vc;
e();
)))
| [a;b;c;d] ->
(fun() ->
let env = init_env() in
VFunction (Fun4 (fun va vb vc vd ->
ctx.venv <- env;
push ctx va;
push ctx vb;
push ctx vc;
push ctx vd;
e();
)))
| [a;b;c;d;pe] ->
(fun() ->
let env = init_env() in
VFunction (Fun5 (fun va vb vc vd ve ->
ctx.venv <- env;
push ctx va;
push ctx vb;
push ctx vc;
push ctx vd;
push ctx ve;
e();
)))
| _ ->
(fun() ->
let env = init_env() in
VFunction (FunVar (fun vl ->
if List.length vl != List.length pl then exc (VString "Invalid call");
ctx.venv <- env;
List.iter (push ctx) vl;
e();
)))
)
| EBinop (op,e1,e2) ->
eval_op ctx op e1 e2 p
| EReturn None ->
(fun() -> raise (Return VNull))
| EReturn (Some e) ->
let e = eval ctx e in
(fun() -> raise (Return (e())))
| EBreak None ->
(fun() -> raise (Break VNull))
| EBreak (Some e) ->
let e = eval ctx e in
(fun() -> raise (Break (e())))
| EContinue ->
(fun() -> raise Continue)
| ENext (e1,e2) ->
let e1 = eval ctx e1 in
let e2 = eval ctx e2 in
(fun() -> ignore(e1()); e2())
| EObject fl ->
let fl = List.map (fun (f,e) -> hash_field ctx f, eval ctx e) fl in
let fields = Array.of_list (List.map (fun (f,_) -> f,VNull) fl) in
Array.sort (fun (f1,_) (f2,_) -> compare f1 f2) fields;
(fun() ->
let o = {
ofields = Array.copy fields;
oproto = None;
} in
List.iter (fun (f,e) -> set_field o f (e())) fl;
VObject o
)
| ELabel l ->
assert false
| ESwitch (e1,el,eo) ->
let e1 = eval ctx e1 in
let el = List.map (fun (cond,e) -> cond, eval ctx cond, eval ctx e) el in
let eo = (match eo with None -> (fun() -> VNull) | Some e -> eval ctx e) in
let cases = (try
let max = ref (-1) in
let ints = List.map (fun (cond,_,e) ->
match fst cond with
| EConst (Int i) -> if i < 0 then raise Exit; if i > !max then max := i; i, e
| _ -> raise Exit
) el in
let a = Array.create (!max + 1) eo in
List.iter (fun (i,e) -> a.(i) <- e) (List.rev ints);
Some a;
with
Exit -> None
) in
let def v =
let rec loop = function
| [] -> eo()
| (_,c,e) :: l ->
if ctx.do_compare v (c()) = CEq then e() else loop l
in
loop el
in
(match cases with
| None -> (fun() -> def (e1()))
| Some t ->
(fun() ->
match e1() with
| VInt i -> if i >= 0 && i < Array.length t then t.(i)() else eo()
| v -> def v
))
| ENeko _ ->
throw ctx p "Inline neko code unsupported"
and eval_oop ctx p o field (params:value list) =
match get_field_opt o field with
| None -> None
| Some f -> Some (call ctx (VObject o) f params p)
and eval_access ctx (e,p) =
match e with
| EField (e,f) ->
let v = eval ctx e in
AccField (v,f)
| EArray (e,eindex) ->
let v = eval ctx e in
let idx = eval ctx eindex in
AccArray (v,idx)
| EConst (Ident s) ->
get_ident ctx s
| EConst This ->
AccThis
| _ ->
throw ctx p "Invalid assign"
and eval_access_get_set ctx (e,p) =
match e with
| EField (e,f) ->
let v = eval ctx e in
let cache = ref VNull in
AccField ((fun() -> cache := v(); !cache),f), AccField((fun() -> !cache), f)
| EArray (e,eindex) ->
let v = eval ctx e in
let idx = eval ctx eindex in
let vcache = ref VNull and icache = ref VNull in
AccArray ((fun() -> vcache := v(); !vcache),(fun() -> icache := idx(); !icache)), AccArray ((fun() -> !vcache),(fun() -> !icache))
| EConst (Ident s) ->
let acc = get_ident ctx s in
acc, acc
| EConst This ->
AccThis, AccThis
| _ ->
throw ctx p "Invalid assign"
and acc_get ctx p = function
| AccField (v,f) ->
let h = hash_field ctx f in
(fun() ->
match v() with
| VObject o -> get_field o h
| _ -> throw ctx p ("Invalid field access : " ^ f))
| AccArray (e,index) ->
(fun() ->
let e = e() in
let index = index() in
(match index, e with
| VInt i, VArray a -> (try Array.get a i with _ -> VNull)
| VInt32 _, VArray _ -> VNull
| _, VObject o ->
(match eval_oop ctx p o h_get [index] with
| None -> throw ctx p "Invalid array access"
| Some v -> v)
| _ -> throw ctx p "Invalid array access"))
| AccLocal i ->
(fun() -> DynArray.get ctx.stack (DynArray.length ctx.stack - i))
| AccGlobal g ->
(fun() -> !g)
| AccThis ->
(fun() -> ctx.vthis)
| AccEnv i ->
(fun() -> ctx.venv.(i))
and acc_set ctx p acc value =
match acc with
| AccField (v,f) ->
let h = hash_field ctx f in
(fun() ->
let v = v() in
let value = value() in
match v with
| VObject o -> set_field o h value; value
| _ -> throw ctx p ("Invalid field access : " ^ f))
| AccArray (e,index) ->
(fun() ->
let e = e() in
let index = index() in
let value = value() in
(match index, e with
| VInt i, VArray a -> (try Array.set a i value; value with _ -> value)
| VInt32 _, VArray _ -> value
| _, VObject o ->
(match eval_oop ctx p o h_set [index;value] with
| None -> throw ctx p "Invalid array access"
| Some _ -> value);
| _ -> throw ctx p "Invalid array access"))
| AccLocal i ->
(fun() ->
let value = value() in
DynArray.set ctx.stack (DynArray.length ctx.stack - i) value;
value)
| AccGlobal g ->
(fun() ->
let value = value() in
g := value;
value)
| AccThis ->
(fun() ->
let value = value() in
ctx.vthis <- value;
value)
| AccEnv i ->
(fun() ->
let value = value() in
ctx.venv.(i) <- value;
value)
and number_op ctx p sop iop fop oop rop v1 v2 =
(fun() ->
let v1 = v1() in
let v2 = v2() in
exc_number_op ctx p sop iop fop oop rop v1 v2)
and exc_number_op ctx p sop iop fop oop rop v1 v2 =
match v1, v2 with
| VInt a, VInt b -> best_int (iop (Int32.of_int a) (Int32.of_int b))
| VInt32 a, VInt b -> best_int (iop a (Int32.of_int b))
| VInt a, VInt32 b -> best_int (iop (Int32.of_int a) b)
| VFloat a, VInt b -> VFloat (fop a (float_of_int b))
| VFloat a, VInt32 b -> VFloat (fop a (Int32.to_float b))
| VInt a, VFloat b -> VFloat (fop (float_of_int a) b)
| VInt32 a, VFloat b -> VFloat (fop (Int32.to_float a) b)
| VFloat a, VFloat b -> VFloat (fop a b)
| VInt32 a, VInt32 b -> best_int (iop a b)
| VObject o, _ ->
(match eval_oop ctx p o oop [v2] with
| Some v -> v
| None ->
match v2 with
| VObject o ->
(match eval_oop ctx p o rop [v1] with
| Some v -> v
| None -> throw ctx p sop)
| _ ->
throw ctx p sop)
| _ , VObject o ->
(match eval_oop ctx p o rop [v1] with
| Some v -> v
| None -> throw ctx p sop)
| _ ->
throw ctx p sop
and int_op ctx p op iop v1 v2 =
(fun() ->
let v1 = v1() in
let v2 = v2() in
match v1, v2 with
| VInt a, VInt b -> best_int (iop (Int32.of_int a) (Int32.of_int b))
| VInt32 a, VInt b -> best_int (iop a (Int32.of_int b))
| VInt a, VInt32 b -> best_int (iop (Int32.of_int a) b)
| VInt32 a, VInt32 b -> best_int (iop a b)
| _ -> throw ctx p op)
and base_op ctx op v1 v2 p =
match op with
| "+" ->
(fun() ->
let v1 = v1() in
let v2 = v2() in
match v1, v2 with
| (VInt _ | VInt32 _), (VInt _ | VInt32 _) | (VInt _ | VInt32 _), VFloat _ | VFloat _ , (VInt _ | VInt32 _) | VFloat _ , VFloat _ | VObject _ , _ | _ , VObject _ -> exc_number_op ctx p op Int32.add (+.) h_add h_radd v1 v2
| VString a, _ -> VString (a ^ ctx.do_string v2)
| _, VString b -> VString (ctx.do_string v1 ^ b)
| _ -> throw ctx p op)
| "-" ->
number_op ctx p op Int32.sub (-.) h_sub h_rsub v1 v2
| "*" ->
number_op ctx p op Int32.mul ( *. ) h_mult h_rmult v1 v2
| "/" ->
(fun() ->
let v1 = v1() in
let v2 = v2() in
match v1, v2 with
| VInt i, VInt j -> VFloat ((float_of_int i) /. (float_of_int j))
| VInt i, VInt32 j -> VFloat ((float_of_int i) /. (Int32.to_float j))
| VInt32 i, VInt j -> VFloat ((Int32.to_float i) /. (float_of_int j))
| VInt32 i, VInt32 j -> VFloat ((Int32.to_float i) /. (Int32.to_float j))
| _ -> exc_number_op ctx p op Int32.div (/.) h_div h_rdiv v1 v2)
| "%" ->
number_op ctx p op (fun x y -> if y = 0l then throw ctx p op; Int32.rem x y) mod_float h_mod h_rmod v1 v2
| "&" ->
int_op ctx p op Int32.logand v1 v2
| "|" ->
int_op ctx p op Int32.logor v1 v2
| "^" ->
int_op ctx p op Int32.logxor v1 v2
| "<<" ->
int_op ctx p op (fun x y -> Int32.shift_left x (Int32.to_int y)) v1 v2
| ">>" ->
int_op ctx p op (fun x y -> Int32.shift_right x (Int32.to_int y)) v1 v2
| ">>>" ->
int_op ctx p op (fun x y -> Int32.shift_right_logical x (Int32.to_int y)) v1 v2
| _ ->
throw ctx p op
and eval_op ctx op e1 e2 p =
match op with
| "=" ->
let acc = eval_access ctx e1 in
let v = eval ctx e2 in
acc_set ctx p acc v
| "==" ->
let v1 = eval ctx e1 in
let v2 = eval ctx e2 in
(fun() ->
let v1 = v1() in
let v2 = v2() in
match ctx.do_compare v1 v2 with
| CEq -> VBool true
| _ -> VBool false)
| "!=" ->
let v1 = eval ctx e1 in
let v2 = eval ctx e2 in
(fun() ->
let v1 = v1() in
let v2 = v2() in
match ctx.do_compare v1 v2 with
| CEq -> VBool false
| _ -> VBool true)
| ">" ->
let v1 = eval ctx e1 in
let v2 = eval ctx e2 in
(fun() ->
let v1 = v1() in
let v2 = v2() in
match ctx.do_compare v1 v2 with
| CSup -> VBool true
| _ -> VBool false)
| ">=" ->
let v1 = eval ctx e1 in
let v2 = eval ctx e2 in
(fun() ->
let v1 = v1() in
let v2 = v2() in
match ctx.do_compare v1 v2 with
| CSup | CEq -> VBool true
| _ -> VBool false)
| "<" ->
let v1 = eval ctx e1 in
let v2 = eval ctx e2 in
(fun() ->
let v1 = v1() in
let v2 = v2() in
match ctx.do_compare v1 v2 with
| CInf -> VBool true
| _ -> VBool false)
| "<=" ->
let v1 = eval ctx e1 in
let v2 = eval ctx e2 in
(fun() ->
let v1 = v1() in
let v2 = v2() in
match ctx.do_compare v1 v2 with
| CInf | CEq -> VBool true
| _ -> VBool false)
| "+" | "-" | "*" | "/" | "%" | "|" | "&" | "^" | "<<" | ">>" | ">>>" ->
let v1 = eval ctx e1 in
let v2 = eval ctx e2 in
base_op ctx op v1 v2 p
| "+=" | "-=" | "*=" | "/=" | "%=" | "<<=" | ">>=" | ">>>=" | "|=" | "&=" | "^=" ->
let aset, aget = eval_access_get_set ctx e1 in
let v1 = acc_get ctx p aget in
let v2 = eval ctx e2 in
let v = base_op ctx (String.sub op 0 (String.length op - 1)) v1 v2 p in
acc_set ctx p aset v
| "&&" ->
let e1 = eval ctx e1 in
let e2 = eval ctx e2 in
(fun() ->
match e1() with
| VBool false as v -> v
| _ -> e2())
| "||" ->
let e1 = eval ctx e1 in
let e2 = eval ctx e2 in
(fun() ->
match e1() with
| VBool true as v -> v
| _ -> e2())
| "++=" | "--=" ->
let aset, aget = eval_access_get_set ctx e1 in
let v1 = acc_get ctx p aget in
let v2 = eval ctx e2 in
let vcache = ref VNull in
let v = base_op ctx (String.sub op 0 1) (fun() -> vcache := v1(); !vcache) v2 p in
let set = acc_set ctx p aset v in
(fun() -> ignore(set()); !vcache)
| _ ->
throw ctx p ("Unsupported " ^ op)
and call ctx vthis vfun pl p =
let oldthis = ctx.vthis in
let stackpos = DynArray.length ctx.stack in
let oldstack = ctx.callstack in
let oldsize = ctx.callsize in
let oldenv = ctx.venv in
ctx.vthis <- vthis;
ctx.callstack <- { cpos = p; cthis = oldthis; cstack = stackpos; cenv = oldenv } :: ctx.callstack;
ctx.callsize <- oldsize + 1;
if oldsize > 600 then exc (VString "Stack overflow");
let ret = (try
(match vfun with
| VClosure (vl,f) ->
f vl pl
| VFunction f ->
(match pl, f with
| [], Fun0 f -> f()
| [a], Fun1 f -> f a
| [a;b], Fun2 f -> f a b
| [a;b;c], Fun3 f -> f a b c
| [a;b;c;d], Fun4 f -> f a b c d
| [a;b;c;d;e], Fun5 f -> f a b c d e
| _, FunVar f -> f pl
| _ -> exc (VString (Printf.sprintf "Invalid call (%d args instead of %d)" (List.length pl) (nargs f))))
| VAbstract (ALazyType f) ->
encode_type ((!f)())
| _ ->
exc (VString "Invalid call"))
with Return v -> v
| Stack_overflow -> exc (VString "Compiler Stack overflow")
| Sys_error msg | Failure msg -> exc (VString msg)
| Unix.Unix_error (_,cmd,msg) -> exc (VString ("Error " ^ cmd ^ " " ^ msg))
(* | Invalid_expr -> exc (VString "Invalid input value") *)
| Builtin_error | Invalid_argument _ -> exc (VString "Invalid call")) in
ctx.vthis <- oldthis;
ctx.venv <- oldenv;
ctx.callstack <- oldstack;
ctx.callsize <- oldsize;
pop ctx (DynArray.length ctx.stack - stackpos);
ret
(* ---------------------------------------------------------------------- *)
(* OTHERS *)
let rec to_string ctx n v =
if n > 5 then
"<...>"
else let n = n + 1 in
match v with
| VNull -> "null"
| VBool true -> "true"
| VBool false -> "false"
| VInt i -> string_of_int i
| VInt32 i -> Int32.to_string i
| VFloat f ->
let s = float_repres f in
let len = String.length s in
if String.unsafe_get s (len - 1) = '.' then String.sub s 0 (len - 1) else s
| VString s -> s
| VArray vl -> "[" ^ String.concat "," (Array.to_list (Array.map (to_string ctx n) vl)) ^ "]"
| VAbstract a ->
(match a with
| APos p -> "#pos(" ^ Lexer.get_error_pos (Printf.sprintf "%s:%d:") p ^ ")"
| _ -> "#abstract")
| VFunction f -> "#function:" ^ string_of_int (nargs f)
| VClosure _ -> "#function:-1"
| VObject o ->
match eval_oop ctx null_pos o h_string [] with
| Some (VString s) -> s
| _ ->
let b = Buffer.create 0 in
let first = ref true in
Buffer.add_char b '{';
Array.iter (fun (f,v) ->
if !first then begin
Buffer.add_char b ' ';
first := false;
end else
Buffer.add_string b ", ";
Buffer.add_string b (field_name ctx f);
Buffer.add_string b " => ";
Buffer.add_string b (to_string ctx n v);
) o.ofields;
Buffer.add_string b (if !first then "}" else " }");
Buffer.contents b
let rec compare ctx a b =
let fcmp (a:float) b = if a = b then CEq else if a < b then CInf else CSup in
let scmp (a:string) b = if a = b then CEq else if a < b then CInf else CSup in
let icmp (a:int32) b = let l = Int32.compare a b in if l = 0 then CEq else if l < 0 then CInf else CSup in
match a, b with
| VNull, VNull -> CEq
| VInt a, VInt b -> if a = b then CEq else if a < b then CInf else CSup
| VInt32 a, VInt32 b -> icmp a b
| VInt a, VInt32 b -> icmp (Int32.of_int a) b
| VInt32 a, VInt b -> icmp a (Int32.of_int b)
| VFloat a, VFloat b -> fcmp a b
| VFloat a, VInt b -> fcmp a (float_of_int b)
| VFloat a, VInt32 b -> fcmp a (Int32.to_float b)
| VInt a, VFloat b -> fcmp (float_of_int a) b
| VInt32 a, VFloat b -> fcmp (Int32.to_float a) b
| VBool a, VBool b -> if a = b then CEq else if a then CSup else CInf
| VString a, VString b -> scmp a b
| VInt _ , VString s
| VInt32 _, VString s
| VFloat _ , VString s
| VBool _ , VString s -> scmp (to_string ctx 0 a) s
| VString s, VInt _
| VString s, VInt32 _
| VString s, VFloat _
| VString s, VBool _ -> scmp s (to_string ctx 0 b)
| VObject oa, VObject ob ->
if oa == ob then CEq else
(match eval_oop ctx null_pos oa h_compare [b] with
| Some (VInt i) -> if i = 0 then CEq else if i < 0 then CInf else CSup
| _ -> CUndef)
| VAbstract a, VAbstract b ->
if a == b then CEq else CUndef
| VArray a, VArray b ->
if a == b then CEq else CUndef
| VFunction a, VFunction b ->
if a == b then CEq else CUndef
| VClosure (la,fa), VClosure (lb,fb) ->
if la == lb && fa == fb then CEq else CUndef
| _ ->
CUndef
let select ctx =
get_ctx_ref := (fun() -> ctx)
let load_prim ctx f n =
match f, n with
| VString f, VInt n ->
let lib, fname = (try ExtString.String.split f "@" with _ -> "", f) in
(try
let f = (match lib with
| "std" -> Hashtbl.find std_lib fname
| "macro" -> Hashtbl.find macro_lib fname
| "regexp" -> Hashtbl.find reg_lib fname
| "zlib" -> Hashtbl.find z_lib fname
| _ -> failwith ("You cannot use the library '" ^ lib ^ "' inside a macro");
) in
if nargs f <> n then raise Not_found;
VFunction f
with Not_found ->
VFunction (FunVar (fun _ -> exc (VString ("Primitive not found " ^ f ^ ":" ^ string_of_int n)))))
| _ ->
exc (VString "Invalid call")
let create com api =
let loader = obj hash [
"args",VArray (Array.of_list (List.map (fun s -> VString s) com.sys_args));
"loadprim",VFunction (Fun2 (fun a b -> (get_ctx()).do_loadprim a b));
"loadmodule",VFunction (Fun2 (fun a b -> assert false));
] in
let ctx = {
gen = Genneko.new_context com 2 true;
types = Hashtbl.create 0;
error = false;
error_proto = { ofields = [||]; oproto = None };
prototypes = Hashtbl.create 0;
enums = [||];
(* eval *)
locals_map = PMap.empty;
locals_count = 0;
locals_barrier = 0;
locals_env = DynArray.create();
globals = PMap.empty;
(* runtime *)
callstack = [];
callsize = 0;
stack = DynArray.create();
exc = [];
vthis = VNull;
venv = [||];
fields_cache = Hashtbl.copy constants;
(* api *)
do_call = Obj.magic();
do_string = Obj.magic();
do_loadprim = Obj.magic();
do_compare = Obj.magic();
(* context *)
curapi = api;
loader = VObject loader;
on_reused = [];
is_reused = true;
exports = VObject { ofields = [||]; oproto = None };
} in
ctx.do_call <- call ctx;
ctx.do_string <- to_string ctx 0;
ctx.do_loadprim <- load_prim ctx;
ctx.do_compare <- compare ctx;
select ctx;
List.iter (fun e -> ignore((eval ctx e)())) (Genneko.header());
ctx
let do_reuse ctx api =
ctx.is_reused <- false;
ctx.curapi <- api
let can_reuse ctx types =
let has_old_version t =
let inf = Type.t_infos t in
try
Hashtbl.find ctx.types inf.mt_path <> inf.mt_module.m_id
with Not_found ->
false
in
if List.exists has_old_version types then
false
else if ctx.is_reused then
true
else if not (List.for_all (fun f -> f()) ctx.on_reused) then
false
else begin
ctx.is_reused <- true;
true;
end
let add_types ctx types ready =
let types = List.filter (fun t ->
let path = Type.t_path t in
if Hashtbl.mem ctx.types path then false else begin
Hashtbl.add ctx.types path (Type.t_infos t).mt_module.m_id;
true;
end
) types in
List.iter ready types;
let e = (EBlock (Genneko.build ctx.gen types), null_pos) in
ignore(catch_errors ctx (fun() -> ignore((eval ctx e)())))
let eval_expr ctx e =
let e = Genneko.gen_expr ctx.gen e in
catch_errors ctx (fun() -> (eval ctx e)())
let get_path ctx path p =
let rec loop = function
| [] -> assert false
| [x] -> (EConst (Ident x),p)
| x :: l -> (EField (loop l,x),p)
in
(eval ctx (loop (List.rev path)))()
let set_error ctx e =
ctx.error <- e
let call_path ctx path f vl api =
if ctx.error then
None
else let old = ctx.curapi in
ctx.curapi <- api;
let p = Genneko.pos ctx.gen api.pos in
catch_errors ctx ~final:(fun() -> ctx.curapi <- old) (fun() ->
match get_path ctx path p with
| VObject o ->
let f = get_field o (hash f) in
call ctx (VObject o) f vl p
| _ -> assert false
)
(* ---------------------------------------------------------------------- *)
(* EXPR ENCODING *)
type enum_index =
| IExpr
| IBinop
| IUnop
| IConst
| ITParam
| ICType
| IField
| IType
| IFieldKind
| IMethodKind
| IVarAccess
| IAccess
| IClassKind
| ITypedExpr
| ITConstant
| IModuleType
| IFieldAccess
| IAnonStatus
let enum_name = function
| IExpr -> "ExprDef"
| IBinop -> "Binop"
| IUnop -> "Unop"
| IConst -> "Constant"
| ITParam -> "TypeParam"
| ICType -> "ComplexType"
| IField -> "FieldType"
| IType -> "Type"
| IFieldKind -> "FieldKind"
| IMethodKind -> "MethodKind"
| IVarAccess -> "VarAccess"
| IAccess -> "Access"
| IClassKind -> "ClassKind"
| ITypedExpr -> "TypedExprDef"
| ITConstant -> "TConstant"
| IModuleType -> "ModuleType"
| IFieldAccess -> "FieldAccess"
| IAnonStatus -> "AnonStatus"
let init ctx =
let enums = [IExpr;IBinop;IUnop;IConst;ITParam;ICType;IField;IType;IFieldKind;IMethodKind;IVarAccess;IAccess;IClassKind;ITypedExpr;ITConstant;IModuleType;IFieldAccess;IAnonStatus] in
let get_enum_proto e =
match get_path ctx ["haxe";"macro";enum_name e] null_pos with
| VObject e ->
(match get_field e h_constructs with
| VObject cst ->
(match get_field cst h_a with
| VArray a ->
Array.map (fun s ->
match s with
| VObject s -> (match get_field s h_s with VString s -> get_field e (hash s),s | _ -> assert false)
| _ -> assert false
) a
| _ -> assert false)
| _ -> assert false)
| _ -> failwith ("haxe.macro." ^ enum_name e ^ " does not exists")
in
ctx.enums <- Array.of_list (List.map get_enum_proto enums);
ctx.error_proto <- (match get_path ctx ["haxe";"macro";"Error";"prototype"] null_pos with VObject p -> p | _ -> failwith ("haxe.macro.Error does not exists"))
open Ast
let null f = function
| None -> VNull
| Some v -> f v
let encode_pos p =
VAbstract (APos p)
let enc_inst path fields =
let ctx = get_ctx() in
let p = (try Hashtbl.find ctx.prototypes path with Not_found -> try
(match get_path ctx (path@["prototype"]) Nast.null_pos with
| VObject o -> Hashtbl.add ctx.prototypes path o; o
| _ -> raise (Runtime VNull))
with Runtime _ ->
failwith ("Prototype not found " ^ String.concat "." path)
) in
let o = obj hash fields in
o.oproto <- Some p;
VObject o
let enc_array l =
let a = Array.of_list l in
enc_inst ["Array"] [
"__a", VArray a;
"length", VInt (Array.length a);
]
let enc_string s =
enc_inst ["String"] [
"__s", VString s;
"length", VInt (String.length s)
]
let enc_hash h =
enc_inst ["haxe";"ds";"StringMap"] [
"h", VAbstract (AHash h);
]
let enc_obj l = VObject (obj hash l)
let enc_enum (i:enum_index) index pl =
let eindex : int = Obj.magic i in
let edef = (get_ctx()).enums.(eindex) in
if pl = [] then
fst edef.(index)
else
enc_inst ["haxe";"macro";enum_name i] [
"tag", VString (snd edef.(index));
"index", VInt index;
"args", VArray (Array.of_list pl);
]
let compiler_error msg pos =
exc (enc_inst ["haxe";"macro";"Error"] [("message",enc_string msg);("pos",encode_pos pos)])
let encode_const c =
let tag, pl = match c with
| Int s -> 0, [enc_string s]
| Float s -> 1, [enc_string s]
| String s -> 2, [enc_string s]
| Ident s -> 3, [enc_string s]
| Regexp (s,opt) -> 4, [enc_string s;enc_string opt]
in
enc_enum IConst tag pl
let rec encode_binop op =
let tag, pl = match op with
| OpAdd -> 0, []
| OpMult -> 1, []
| OpDiv -> 2, []
| OpSub -> 3, []
| OpAssign -> 4, []
| OpEq -> 5, []
| OpNotEq -> 6, []
| OpGt -> 7, []
| OpGte -> 8, []
| OpLt -> 9, []
| OpLte -> 10, []
| OpAnd -> 11, []
| OpOr -> 12, []
| OpXor -> 13, []
| OpBoolAnd -> 14, []
| OpBoolOr -> 15, []
| OpShl -> 16, []
| OpShr -> 17, []
| OpUShr -> 18, []
| OpMod -> 19, []
| OpAssignOp op -> 20, [encode_binop op]
| OpInterval -> 21, []
| OpArrow -> 22, []
in
enc_enum IBinop tag pl
let encode_unop op =
let tag = match op with
| Increment -> 0
| Decrement -> 1
| Not -> 2
| Neg -> 3
| NegBits -> 4
in
enc_enum IUnop tag []
let rec encode_path t =
let fields = [
"pack", enc_array (List.map enc_string t.tpackage);
"name", enc_string t.tname;
"params", enc_array (List.map encode_tparam t.tparams);
] in
enc_obj (match t.tsub with
| None -> fields
| Some s -> ("sub", enc_string s) :: fields)
and encode_tparam = function
| TPType t -> enc_enum ITParam 0 [encode_ctype t]
| TPExpr e -> enc_enum ITParam 1 [encode_expr e]
and encode_access a =
let tag = match a with
| APublic -> 0
| APrivate -> 1
| AStatic -> 2
| AOverride -> 3
| ADynamic -> 4
| AInline -> 5
| AMacro -> 6
in
enc_enum IAccess tag []
and encode_meta_entry (m,ml,p) =
enc_obj [
"name", enc_string (fst (MetaInfo.to_string m));
"params", enc_array (List.map encode_expr ml);
"pos", encode_pos p;
]
and encode_meta_content m =
enc_array (List.map encode_meta_entry m)
and encode_field (f:class_field) =
let tag, pl = match f.cff_kind with
| FVar (t,e) -> 0, [null encode_ctype t; null encode_expr e]
| FFun f -> 1, [encode_fun f]
| FProp (get,set, t, e) -> 2, [enc_string get; enc_string set; null encode_ctype t; null encode_expr e]
in
enc_obj [
"name",enc_string f.cff_name;
"doc", null enc_string f.cff_doc;
"pos", encode_pos f.cff_pos;
"kind", enc_enum IField tag pl;
"meta", encode_meta_content f.cff_meta;
"access", enc_array (List.map encode_access f.cff_access);
]
and encode_ctype t =
let tag, pl = match t with
| CTPath p ->
0, [encode_path p]
| CTFunction (pl,r) ->
1, [enc_array (List.map encode_ctype pl);encode_ctype r]
| CTAnonymous fl ->
2, [enc_array (List.map encode_field fl)]
| CTParent t ->
3, [encode_ctype t]
| CTExtend (tl,fields) ->
4, [enc_array (List.map encode_path tl); enc_array (List.map encode_field fields)]
| CTOptional t ->
5, [encode_ctype t]
in
enc_enum ICType tag pl
and encode_tparam_decl tp =
enc_obj [
"name", enc_string tp.tp_name;
"params", enc_array (List.map encode_tparam_decl tp.tp_params);
"constraints", enc_array (List.map encode_ctype tp.tp_constraints);
]
and encode_fun f =
enc_obj [
"params", enc_array (List.map encode_tparam_decl f.f_params);
"args", enc_array (List.map (fun (n,opt,t,e) ->
enc_obj [
"name", enc_string n;
"opt", VBool opt;
"type", null encode_ctype t;
"value", null encode_expr e;
]
) f.f_args);
"ret", null encode_ctype f.f_type;
"expr", null encode_expr f.f_expr
]
and encode_expr e =
let rec loop (e,p) =
let tag, pl = match e with
| EConst c ->
0, [encode_const c]
| EArray (e1,e2) ->
1, [loop e1;loop e2]
| EBinop (op,e1,e2) ->
2, [encode_binop op;loop e1;loop e2]
| EField (e,f) ->
3, [loop e;enc_string f]
| EParenthesis e ->
4, [loop e]
| EObjectDecl fl ->
5, [enc_array (List.map (fun (f,e) -> enc_obj [
"field",enc_string f;
"expr",loop e;
]) fl)]
| EArrayDecl el ->
6, [enc_array (List.map loop el)]
| ECall (e,el) ->
7, [loop e;enc_array (List.map loop el)]
| ENew (p,el) ->
8, [encode_path p; enc_array (List.map loop el)]
| EUnop (op,flag,e) ->
9, [encode_unop op; VBool (match flag with Prefix -> false | Postfix -> true); loop e]
| EVars vl ->
10, [enc_array (List.map (fun (v,t,eo) ->
enc_obj [
"name",enc_string v;
"type",null encode_ctype t;
"expr",null loop eo;
]
) vl)]
| EFunction (name,f) ->
11, [null enc_string name; encode_fun f]
| EBlock el ->
12, [enc_array (List.map loop el)]
| EFor (e,eloop) ->
13, [loop e;loop eloop]
| EIn (e1,e2) ->
14, [loop e1;loop e2]
| EIf (econd,e,eelse) ->
15, [loop econd;loop e;null loop eelse]
| EWhile (econd,e,flag) ->
16, [loop econd;loop e;VBool (match flag with NormalWhile -> true | DoWhile -> false)]
| ESwitch (e,cases,eopt) ->
17, [loop e;enc_array (List.map (fun (ecl,eg,e) ->
enc_obj [
"values",enc_array (List.map loop ecl);
"guard",null loop eg;
"expr",null loop e
]
) cases);null encode_null_expr eopt]
| ETry (e,catches) ->
18, [loop e;enc_array (List.map (fun (v,t,e) ->
enc_obj [
"name",enc_string v;
"type",encode_ctype t;
"expr",loop e
]
) catches)]
| EReturn eo ->
19, [null loop eo]
| EBreak ->
20, []
| EContinue ->
21, []
| EUntyped e ->
22, [loop e]
| EThrow e ->
23, [loop e]
| ECast (e,t) ->
24, [loop e; null encode_ctype t]
| EDisplay (e,flag) ->
25, [loop e; VBool flag]
| EDisplayNew t ->
26, [encode_path t]
| ETernary (econd,e1,e2) ->
27, [loop econd;loop e1;loop e2]
| ECheckType (e,t) ->
28, [loop e; encode_ctype t]
| EMeta (m,e) ->
29, [encode_meta_entry m;loop e]
in
enc_obj [
"pos", encode_pos p;
"expr", enc_enum IExpr tag pl;
]
in
loop e
and encode_null_expr e =
match e with
| None ->
enc_obj ["pos", VNull;"expr",VNull]
| Some e ->
encode_expr e
(* ---------------------------------------------------------------------- *)
(* EXPR DECODING *)
let opt f v =
match v with
| VNull -> None
| _ -> Some (f v)
let opt_list f v =
match v with
| VNull -> []
| _ -> f v
let decode_pos = function
| VAbstract (APos p) -> p
| _ -> raise Invalid_expr
let field v f =
match v with
| VObject o -> get_field o (hash f)
| _ -> raise Invalid_expr
let decode_enum v =
match field v "index", field v "args" with
| VInt i, VNull -> i, []
| VInt i, VArray a -> i, Array.to_list a
| _ -> raise Invalid_expr
let dec_bool = function
| VBool b -> b
| _ -> raise Invalid_expr
let dec_string v =
match field v "__s" with
| VString s -> s
| _ -> raise Invalid_expr
let dec_array v =
match field v "__a", field v "length" with
| VArray a, VInt l -> Array.to_list (if Array.length a = l then a else Array.sub a 0 l)
| _ -> raise Invalid_expr
let decode_const c =
match decode_enum c with
| 0, [s] -> Int (dec_string s)
| 1, [s] -> Float (dec_string s)
| 2, [s] -> String (dec_string s)
| 3, [s] -> Ident (dec_string s)
| 4, [s;opt] -> Regexp (dec_string s, dec_string opt)
| 5, [s] -> Ident (dec_string s) (** deprecated CType, keep until 3.0 release **)
| _ -> raise Invalid_expr
let rec decode_op op =
match decode_enum op with
| 0, [] -> OpAdd
| 1, [] -> OpMult
| 2, [] -> OpDiv
| 3, [] -> OpSub
| 4, [] -> OpAssign
| 5, [] -> OpEq
| 6, [] -> OpNotEq
| 7, [] -> OpGt
| 8, [] -> OpGte
| 9, [] -> OpLt
| 10, [] -> OpLte
| 11, [] -> OpAnd
| 12, [] -> OpOr
| 13, [] -> OpXor
| 14, [] -> OpBoolAnd
| 15, [] -> OpBoolOr
| 16, [] -> OpShl
| 17, [] -> OpShr
| 18, [] -> OpUShr
| 19, [] -> OpMod
| 20, [op] -> OpAssignOp (decode_op op)
| 21, [] -> OpInterval
| 22,[] -> OpArrow
| _ -> raise Invalid_expr
let decode_unop op =
match decode_enum op with
| 0, [] -> Increment
| 1, [] -> Decrement
| 2, [] -> Not
| 3, [] -> Neg
| 4, [] -> NegBits
| _ -> raise Invalid_expr
let decode_import_mode t =
match decode_enum t with
| 0, [] -> INormal
| 1, [alias] -> IAsName (dec_string alias)
| 2, [] -> IAll
| _ -> raise Invalid_expr
let decode_import t = (List.map (fun o -> ((dec_string (field o "name")), (decode_pos (field o "pos")))) (dec_array (field t "path")), decode_import_mode (field t "mode"))
let rec decode_path t =
{
tpackage = List.map dec_string (dec_array (field t "pack"));
tname = dec_string (field t "name");
tparams = (match field t "params" with VNull -> [] | a -> List.map decode_tparam (dec_array a));
tsub = opt dec_string (field t "sub");
}
and decode_tparam v =
match decode_enum v with
| 0,[t] -> TPType (decode_ctype t)
| 1,[e] -> TPExpr (decode_expr e)
| _ -> raise Invalid_expr
and decode_tparams = function
| VNull -> []
| a -> List.map decode_tparam_decl (dec_array a)
and decode_tparam_decl v =
{
tp_name = dec_string (field v "name");
tp_constraints = (match field v "constraints" with VNull -> [] | a -> List.map decode_ctype (dec_array a));
tp_params = decode_tparams (field v "params");
}
and decode_fun v =
{
f_params = decode_tparams (field v "params");
f_args = List.map (fun o ->
(dec_string (field o "name"),(match field o "opt" with VNull -> false | v -> dec_bool v),opt decode_ctype (field o "type"),opt decode_expr (field o "value"))
) (dec_array (field v "args"));
f_type = opt decode_ctype (field v "ret");
f_expr = opt decode_expr (field v "expr");
}
and decode_access v =
match decode_enum v with
| 0, [] -> APublic
| 1, [] -> APrivate
| 2, [] -> AStatic
| 3, [] -> AOverride
| 4, [] -> ADynamic
| 5, [] -> AInline
| 6, [] -> AMacro
| _ -> raise Invalid_expr
and decode_meta_entry v =
MetaInfo.from_string (dec_string (field v "name")), (match field v "params" with VNull -> [] | a -> List.map decode_expr (dec_array a)), decode_pos (field v "pos")
and decode_meta_content = function
| VNull -> []
| v -> List.map decode_meta_entry (dec_array v)
and decode_field v =
let fkind = match decode_enum (field v "kind") with
| 0, [t;e] ->
FVar (opt decode_ctype t, opt decode_expr e)
| 1, [f] ->
FFun (decode_fun f)
| 2, [get;set; t; e] ->
FProp (dec_string get, dec_string set, opt decode_ctype t, opt decode_expr e)
| _ ->
raise Invalid_expr
in
{
cff_name = dec_string (field v "name");
cff_doc = opt dec_string (field v "doc");
cff_pos = decode_pos (field v "pos");
cff_kind = fkind;
cff_access = List.map decode_access (opt_list dec_array (field v "access"));
cff_meta = opt_list decode_meta_content (field v "meta");
}
and decode_ctype t =
match decode_enum t with
| 0, [p] ->
CTPath (decode_path p)
| 1, [a;r] ->
CTFunction (List.map decode_ctype (dec_array a), decode_ctype r)
| 2, [fl] ->
CTAnonymous (List.map decode_field (dec_array fl))
| 3, [t] ->
CTParent (decode_ctype t)
| 4, [tl;fl] ->
CTExtend (List.map decode_path (dec_array tl), List.map decode_field (dec_array fl))
| 5, [t] ->
CTOptional (decode_ctype t)
| _ ->
raise Invalid_expr
let rec decode_expr v =
let rec loop v =
(decode (field v "expr"), decode_pos (field v "pos"))
and decode e =
match decode_enum e with
| 0, [c] ->
EConst (decode_const c)
| 1, [e1;e2] ->
EArray (loop e1, loop e2)
| 2, [op;e1;e2] ->
EBinop (decode_op op, loop e1, loop e2)
| 3, [e;f] ->
EField (loop e, dec_string f)
| 4, [e] ->
EParenthesis (loop e)
| 5, [a] ->
EObjectDecl (List.map (fun o ->
(dec_string (field o "field"), loop (field o "expr"))
) (dec_array a))
| 6, [a] ->
EArrayDecl (List.map loop (dec_array a))
| 7, [e;el] ->
ECall (loop e,List.map loop (dec_array el))
| 8, [t;el] ->
ENew (decode_path t,List.map loop (dec_array el))
| 9, [op;VBool f;e] ->
EUnop (decode_unop op,(if f then Postfix else Prefix),loop e)
| 10, [vl] ->
EVars (List.map (fun v ->
(dec_string (field v "name"),opt decode_ctype (field v "type"),opt loop (field v "expr"))
) (dec_array vl))
| 11, [fname;f] ->
EFunction (opt dec_string fname,decode_fun f)
| 12, [el] ->
EBlock (List.map loop (dec_array el))
| 13, [e1;e2] ->
EFor (loop e1, loop e2)
| 14, [e1;e2] ->
EIn (loop e1, loop e2)
| 15, [e1;e2;e3] ->
EIf (loop e1, loop e2, opt loop e3)
| 16, [e1;e2;VBool flag] ->
EWhile (loop e1,loop e2,if flag then NormalWhile else DoWhile)
| 17, [e;cases;eo] ->
let cases = List.map (fun c ->
(List.map loop (dec_array (field c "values")),opt loop (field c "guard"),opt loop (field c "expr"))
) (dec_array cases) in
ESwitch (loop e,cases,opt decode_null_expr eo)
| 18, [e;catches] ->
let catches = List.map (fun c ->
(dec_string (field c "name"),decode_ctype (field c "type"),loop (field c "expr"))
) (dec_array catches) in
ETry (loop e, catches)
| 19, [e] ->
EReturn (opt loop e)
| 20, [] ->
EBreak
| 21, [] ->
EContinue
| 22, [e] ->
EUntyped (loop e)
| 23, [e] ->
EThrow (loop e)
| 24, [e;t] ->
ECast (loop e,opt decode_ctype t)
| 25, [e;f] ->
EDisplay (loop e,dec_bool f)
| 26, [t] ->
EDisplayNew (decode_path t)
| 27, [e1;e2;e3] ->
ETernary (loop e1,loop e2,loop e3)
| 28, [e;t] ->
ECheckType (loop e, decode_ctype t)
| 29, [m;e] ->
EMeta (decode_meta_entry m,loop e)
| 30, [e;f] ->
EField (loop e, dec_string f) (*** deprecated EType, keep until haxe 3 **)
| _ ->
raise Invalid_expr
in
try
loop v
with Stack_overflow ->
raise Invalid_expr
and decode_null_expr v =
match field v "expr" with
| VNull -> None
| _ -> Some (decode_expr v)
(* ---------------------------------------------------------------------- *)
(* TYPE ENCODING *)
let encode_ref v convert tostr =
enc_obj [
"get", VFunction (Fun0 (fun() -> convert v));
"__string", VFunction (Fun0 (fun() -> VString (tostr())));
"toString", VFunction (Fun0 (fun() -> enc_string (tostr())));
"$", VAbstract (AUnsafe (Obj.repr v));
]
let decode_ref v : 'a =
match field v "$" with
| VAbstract (AUnsafe t) -> Obj.obj t
| _ -> raise Invalid_expr
let encode_pmap convert m =
let h = Hashtbl.create 0 in
PMap.iter (fun k v -> Hashtbl.add h (VString k) (convert v)) m;
enc_hash h
let encode_pmap_array convert m =
let l = ref [] in
PMap.iter (fun _ v -> l := !l @ [(convert v)]) m;
enc_array !l
let encode_array convert l =
enc_array (List.map convert l)
let encode_meta m set =
let meta = ref m in
enc_obj [
"get", VFunction (Fun0 (fun() ->
encode_meta_content (!meta)
));
"add", VFunction (Fun3 (fun k vl p ->
(try
let el = List.map decode_expr (dec_array vl) in
meta := (MetaInfo.from_string (dec_string k), el, decode_pos p) :: !meta;
set (!meta)
with Invalid_expr ->
failwith "Invalid expression");
VNull
));
"extract", VFunction (Fun1 (fun k ->
let k = MetaInfo.from_string (try dec_string k with Invalid_expr -> raise Builtin_error) in
encode_array encode_meta_entry (List.filter (fun (m,_,_) -> m = k) (!meta))
));
"remove", VFunction (Fun1 (fun k ->
let k = MetaInfo.from_string (try dec_string k with Invalid_expr -> raise Builtin_error) in
meta := List.filter (fun (m,_,_) -> m <> k) (!meta);
set (!meta);
VNull
));
"has", VFunction (Fun1 (fun k ->
let k = MetaInfo.from_string (try dec_string k with Invalid_expr -> raise Builtin_error) in
VBool (List.exists (fun (m,_,_) -> m = k) (!meta));
));
]
let rec encode_mtype t fields =
let i = t_infos t in
enc_obj ([
"__t", VAbstract (ATDecl t);
"pack", enc_array (List.map enc_string (fst i.mt_path));
"name", enc_string (snd i.mt_path);
"pos", encode_pos i.mt_pos;
"module", enc_string (s_type_path i.mt_module.m_path);
"isPrivate", VBool i.mt_private;
"meta", encode_meta i.mt_meta (fun m -> i.mt_meta <- m);
"doc", null enc_string i.mt_doc;
"params", encode_type_params i.mt_params;
] @ fields)
and encode_type_params tl =
enc_array (List.map (fun (n,t) -> enc_obj ["name",enc_string n;"t",encode_type t]) tl)
and encode_tenum e =
encode_mtype (TEnumDecl e) [
"isExtern", VBool e.e_extern;
"exclude", VFunction (Fun0 (fun() -> e.e_extern <- true; VNull));
"constructs", encode_pmap encode_efield e.e_constrs;
"names", enc_array (List.map enc_string e.e_names);
]
and encode_tabstract a =
encode_mtype (TAbstractDecl a) [
"type", encode_type a.a_this;
"impl", (match a.a_impl with None -> VNull | Some c -> encode_clref c);
"binops", enc_array (List.map (fun (op,cf) -> enc_obj [ "op",encode_binop op; "field",encode_cfield cf]) a.a_ops);
"unops", enc_array (List.map (fun (op,postfix,cf) -> enc_obj [ "op",encode_unop op; "isPostfix",VBool (match postfix with Postfix -> true | Prefix -> false); "field",encode_cfield cf]) a.a_unops);
"from", enc_array ((List.map (fun t -> enc_obj [ "t",encode_type t; "field",VNull]) a.a_from) @ (List.map (fun (t,cf) -> enc_obj [ "t",encode_type t; "field",encode_cfield cf]) a.a_from_field));
"to", enc_array ((List.map (fun t -> enc_obj [ "t",encode_type t; "field",VNull]) a.a_to) @ (List.map (fun (t,cf) -> enc_obj [ "t",encode_type t; "field",encode_cfield cf]) a.a_to_field));
"array", enc_array (List.map encode_cfield a.a_array);
]
and encode_efield f =
enc_obj [
"name", enc_string f.ef_name;
"type", encode_type f.ef_type;
"pos", encode_pos f.ef_pos;
"index", VInt f.ef_index;
"meta", encode_meta f.ef_meta (fun m -> f.ef_meta <- m);
"doc", null enc_string f.ef_doc;
"params", encode_type_params f.ef_params;
]
and encode_cfield f =
enc_obj [
"name", enc_string f.cf_name;
"type", (match f.cf_kind with Method _ -> encode_lazy_type f.cf_type | _ -> encode_type f.cf_type);
"isPublic", VBool f.cf_public;
"params", encode_type_params f.cf_params;
"meta", encode_meta f.cf_meta (fun m -> f.cf_meta <- m);
"expr", (VFunction (Fun0 (fun() -> ignore(follow f.cf_type); (match f.cf_expr with None -> VNull | Some e -> encode_texpr e))));
"kind", encode_field_kind f.cf_kind;
"pos", encode_pos f.cf_pos;
"doc", null enc_string f.cf_doc;
]
and encode_field_kind k =
let tag, pl = (match k with
| Type.Var v -> 0, [encode_var_access v.v_read; encode_var_access v.v_write]
| Method m -> 1, [encode_method_kind m]
) in
enc_enum IFieldKind tag pl
and encode_var_access a =
let tag, pl = (match a with
| AccNormal -> 0, []
| AccNo -> 1, []
| AccNever -> 2, []
| AccResolve -> 3, []
| AccCall -> 4, []
| AccInline -> 5, []
| AccRequire (s,msg) -> 6, [enc_string s; null enc_string msg]
) in
enc_enum IVarAccess tag pl
and encode_method_kind m =
let tag, pl = (match m with
| MethNormal -> 0, []
| MethInline -> 1, []
| MethDynamic -> 2, []
| MethMacro -> 3, []
) in
enc_enum IMethodKind tag pl
and encode_class_kind k =
let tag, pl = (match k with
| KNormal -> 0, []
| KTypeParameter pl -> 1, [encode_tparams pl]
| KExtension (cl, params) -> 2, [encode_clref cl; encode_tparams params]
| KExpr e -> 3, [encode_expr e]
| KGeneric -> 4, []
| KGenericInstance (cl, params) -> 5, [encode_clref cl; encode_tparams params]
| KMacroType -> 6, []
| KAbstractImpl a -> 7, [encode_abref a]
| KGenericBuild cfl -> 8, []
) in
enc_enum IClassKind tag pl
and encode_tclass c =
ignore(c.cl_build());
encode_mtype (TClassDecl c) [
"kind", encode_class_kind c.cl_kind;
"isExtern", VBool c.cl_extern;
"exclude", VFunction (Fun0 (fun() -> c.cl_extern <- true; c.cl_init <- None; VNull));
"isInterface", VBool c.cl_interface;
"superClass", (match c.cl_super with
| None -> VNull
| Some (c,pl) -> enc_obj ["t",encode_clref c;"params",encode_tparams pl]
);
"interfaces", enc_array (List.map (fun (c,pl) -> enc_obj ["t",encode_clref c;"params",encode_tparams pl]) c.cl_implements);
"fields", encode_ref c.cl_ordered_fields (encode_array encode_cfield) (fun() -> "class fields");
"statics", encode_ref c.cl_ordered_statics (encode_array encode_cfield) (fun() -> "class fields");
"constructor", (match c.cl_constructor with None -> VNull | Some cf -> encode_cfref cf);
"init", (match c.cl_init with None -> VNull | Some e -> encode_texpr e);
"overrides", (enc_array (List.map encode_cfref c.cl_overrides))
]
and encode_ttype t =
encode_mtype (TTypeDecl t) [
"isExtern", VBool false;
"exclude", VFunction (Fun0 (fun() -> VNull));
"type", encode_type t.t_type;
]
and encode_tanon a =
enc_obj [
"fields", encode_pmap_array encode_cfield a.a_fields;
"status", encode_anon_status !(a.a_status);
]
and encode_anon_status s =
let tag, pl = (match s with
| Closed -> 0, []
| Opened -> 1, []
| Type.Const -> 2, []
| Extend tl -> 3, [encode_ref tl (fun tl -> enc_array (List.map encode_type tl)) (fun() -> "<extended types>")]
| Statics cl -> 4, [encode_clref cl]
| EnumStatics en -> 5, [encode_enref en]
| AbstractStatics ab -> 6, [encode_abref ab]
)
in
enc_enum IAnonStatus tag pl
and encode_tparams pl =
enc_array (List.map encode_type pl)
and encode_clref c =
encode_ref c encode_tclass (fun() -> s_type_path c.cl_path)
and encode_enref en =
encode_ref en encode_tenum (fun() -> s_type_path en.e_path)
and encode_cfref cf =
encode_ref cf encode_cfield (fun() -> cf.cf_name)
and encode_abref ab =
encode_ref ab encode_tabstract (fun() -> s_type_path ab.a_path)
and encode_type t =
let rec loop = function
| TMono r ->
(match !r with
| None -> 0, [encode_ref r (fun r -> match !r with None -> VNull | Some t -> encode_type t) (fun() -> "<mono>")]
| Some t -> loop t)
| TEnum (e, pl) ->
1 , [encode_ref e encode_tenum (fun() -> s_type_path e.e_path); encode_tparams pl]
| TInst (c, pl) ->
2 , [encode_clref c; encode_tparams pl]
| TType (t,pl) ->
3 , [encode_ref t encode_ttype (fun() -> s_type_path t.t_path); encode_tparams pl]
| TFun (pl,ret) ->
let pl = List.map (fun (n,o,t) ->
enc_obj [
"name",enc_string n;
"opt",VBool o;
"t",encode_type t
]
) pl in
4 , [enc_array pl; encode_type ret]
| TAnon a ->
5, [encode_ref a encode_tanon (fun() -> "<anonymous>")]
| TDynamic tsub as t ->
if t == t_dynamic then
6, [VNull]
else
6, [encode_type tsub]
| TLazy f ->
loop (!f())
| TAbstract (a, pl) ->
8, [encode_abref a; encode_tparams pl]
in
let tag, pl = loop t in
enc_enum IType tag pl
and encode_lazy_type t =
let rec loop = function
| TMono r ->
(match !r with
| Some t -> loop t
| _ -> encode_type t)
| TLazy f ->
enc_enum IType 7 [VAbstract (ALazyType f)]
| _ ->
encode_type t
in
loop t
and decode_type t =
match decode_enum t with
| 0, [r] -> TMono (decode_ref r)
| 1, [e; pl] -> TEnum (decode_ref e, List.map decode_type (dec_array pl))
| 2, [c; pl] -> TInst (decode_ref c, List.map decode_type (dec_array pl))
| 3, [t; pl] -> TType (decode_ref t, List.map decode_type (dec_array pl))
| 4, [pl; r] -> TFun (List.map (fun p -> dec_string (field p "name"), dec_bool (field p "opt"), decode_type (field p "t")) (dec_array pl), decode_type r)
| 5, [a] -> TAnon (decode_ref a)
| 6, [VNull] -> t_dynamic
| 6, [t] -> TDynamic (decode_type t)
| 7, [VAbstract (ALazyType f)] -> TLazy f
| 8, [a; pl] -> TAbstract (decode_ref a, List.map decode_type (dec_array pl))
| _ -> raise Invalid_expr
let decode_tdecl v =
match v with
| VObject o ->
(match get_field o (hash "__t") with
| VAbstract (ATDecl t) -> t
| _ -> raise Invalid_expr)
| _ -> raise Invalid_expr
(* ---------------------------------------------------------------------- *)
(* TEXPR Encoding *)
let vopt f v = match v with
| None -> VNull
| Some v -> f v
let rec encode_tconst c =
let tag, pl = match c with
| TInt i -> 0,[best_int i]
| TFloat f -> 1,[enc_string f]
| TString s -> 2,[enc_string s]
| TBool b -> 3,[VBool b]
| TNull -> 4,[]
| TThis -> 5,[]
| TSuper -> 6,[]
in
enc_enum ITConstant tag pl
and encode_tvar v =
let f_extra (pl,e) =
enc_obj [
"params",encode_type_params pl;
"expr",vopt encode_texpr e
]
in
enc_obj [
"id", VInt v.v_id;
"name", enc_string v.v_name;
"t", encode_type v.v_type;
"capture", VBool v.v_capture;
"extra", vopt f_extra v.v_extra;
"meta", encode_meta_content v.v_meta;
"$", VAbstract (AUnsafe (Obj.repr v));
]
and encode_module_type mt =
let tag,pl = match mt with
| TClassDecl c -> 0,[encode_clref c]
| TEnumDecl e -> 1,[encode_enref e]
| TTypeDecl t -> 2,[encode_ref t encode_ttype (fun () -> s_type_path t.t_path)]
| TAbstractDecl a -> 3,[encode_abref a]
in
enc_enum IModuleType tag pl
and encode_tfunc func =
enc_obj [
"args",enc_array (List.map (fun (v,c) ->
enc_obj [
"v",encode_tvar v;
"value",match c with None -> VNull | Some c -> encode_tconst c
]
) func.tf_args);
"t",encode_type func.tf_type;
"expr",encode_texpr func.tf_expr
]
and encode_field_access fa =
let encode_instance c tl =
enc_obj [
"c",encode_clref c;
"params",encode_tparams tl
]
in
let tag,pl = match fa with
| FInstance(c,tl,cf) -> 0,[encode_clref c;encode_tparams tl;encode_cfref cf]
| FStatic(c,cf) -> 1,[encode_clref c;encode_cfref cf]
| FAnon(cf) -> 2,[encode_cfref cf]
| FDynamic(s) -> 3,[enc_string s]
| FClosure(co,cf) -> 4,[(match co with Some (c,tl) -> encode_instance c tl | None -> VNull);encode_cfref cf]
| FEnum(en,ef) -> 5,[encode_enref en;encode_efield ef]
in
enc_enum IFieldAccess tag pl
and encode_texpr e =
let rec loop e =
let tag, pl = match e.eexpr with
| TConst c -> 0,[encode_tconst c]
| TLocal v -> 1,[encode_tvar v]
| TArray(e1,e2) -> 2,[loop e1; loop e2]
| TBinop(op,e1,e2) -> 3,[encode_binop op;loop e1;loop e2]
| TField(e1,fa) -> 4,[loop e1;encode_field_access fa]
| TTypeExpr mt -> 5,[encode_module_type mt]
| TParenthesis e1 -> 6,[loop e1]
| TObjectDecl fl -> 7, [enc_array (List.map (fun (f,e) ->
enc_obj [
"name",enc_string f;
"expr",loop e;
]) fl)]
| TArrayDecl el -> 8,[encode_texpr_list el]
| TCall(e1,el) -> 9,[loop e1;encode_texpr_list el]
| TNew(c,pl,el) -> 10,[encode_clref c;encode_tparams pl;encode_texpr_list el]
| TUnop(op,flag,e1) -> 11,[encode_unop op;VBool (flag = Postfix);loop e1]
| TFunction func -> 12,[encode_tfunc func]
| TVar (v,eo) -> 13,[encode_tvar v;vopt encode_texpr eo]
| TBlock el -> 14,[encode_texpr_list el]
| TFor(v,e1,e2) -> 15,[encode_tvar v;loop e1;loop e2]
| TIf(eif,ethen,eelse) -> 16,[loop eif;loop ethen;vopt encode_texpr eelse]
| TWhile(econd,e1,flag) -> 17,[loop econd;loop e1;VBool (flag = NormalWhile)]
| TSwitch(e1,cases,edef) -> 18,[
loop e1;
enc_array (List.map (fun (el,e) -> enc_obj ["values",encode_texpr_list el;"expr",loop e]) cases);
vopt encode_texpr edef
]
| TTry(e1,catches) -> 19,[
loop e1;
enc_array (List.map (fun (v,e) ->
enc_obj [
"v",encode_tvar v;
"expr",loop e
]) catches
)]
| TReturn e1 -> 20,[vopt encode_texpr e1]
| TBreak -> 21,[]
| TContinue -> 22,[]
| TThrow e1 -> 23,[loop e1]
| TCast(e1,mt) -> 24,[loop e1;match mt with None -> VNull | Some mt -> encode_module_type mt]
| TMeta(m,e1) -> 25,[encode_meta_entry m;loop e1]
| TEnumParameter(e1,ef,i) -> 26,[loop e1;encode_efield ef;VInt i]
in
enc_obj [
"pos", encode_pos e.epos;
"expr", enc_enum ITypedExpr tag pl;
"t", encode_type e.etype
]
in
loop e
and encode_texpr_list el =
enc_array (List.map encode_texpr el)
(* ---------------------------------------------------------------------- *)
(* TEXPR Decoding *)
let decode_tconst c =
match decode_enum c with
| 0, [s] -> TInt (match s with VInt i -> Int32.of_int i | VInt32 i -> i | _ -> raise Invalid_expr)
| 1, [s] -> TFloat (dec_string s)
| 2, [s] -> TString (dec_string s)
| 3, [s] -> TBool (dec_bool s)
| 4, [] -> TNull
| 5, [] -> TThis
| 6, [] -> TSuper
| _ -> raise Invalid_expr
let decode_type_params v =
List.map (fun v -> dec_string (field v "name"),decode_type (field v "t")) (dec_array v)
let decode_tvar v =
match field v "$" with
| VAbstract (AUnsafe t) -> Obj.obj t
| _ -> raise Invalid_expr
let decode_var_access v =
match decode_enum v with
| 0, [] -> AccNormal
| 1, [] -> AccNo
| 2, [] -> AccNever
| 3, [] -> AccResolve
| 4, [] -> AccCall
| 5, [] -> AccInline
| 6, [s1;s2] -> AccRequire(dec_string s1, opt dec_string s2)
| _ -> raise Invalid_expr
let decode_method_kind v =
match decode_enum v with
| 0, [] -> MethNormal
| 1, [] -> MethInline
| 2, [] -> MethDynamic
| 3, [] -> MethMacro
| _ -> raise Invalid_expr
let decode_field_kind v =
match decode_enum v with
| 0, [vr;vw] -> Type.Var({v_read = decode_var_access vr; v_write = decode_var_access vw})
| 1, [m] -> Method (decode_method_kind m)
| _ -> raise Invalid_expr
let decode_cfield v =
{
cf_name = dec_string (field v "name");
cf_type = decode_type (field v "type");
cf_public = dec_bool (field v "isPublic");
cf_pos = decode_pos (field v "pos");
cf_doc = opt dec_string (field v "doc");
cf_meta = []; (* TODO *)
cf_kind = decode_field_kind (field v "kind");
cf_params = decode_type_params (field v "params");
cf_expr = None;
cf_overloads = [];
}
let decode_efield v =
{
ef_name = dec_string (field v "name");
ef_type = decode_type (field v "type");
ef_pos = decode_pos (field v "pos");
ef_index = (match field v "index" with VInt i -> i | _ -> raise Invalid_expr);
ef_meta = []; (* TODO *)
ef_doc = opt dec_string (field v "doc");
ef_params = decode_type_params (field v "params")
}
let decode_field_access v =
match decode_enum v with
| 0, [c;tl;cf] ->
let c = decode_ref c in
FInstance(c,List.map decode_type (dec_array tl),decode_ref cf)
| 1, [c;cf] -> FStatic(decode_ref c,decode_ref cf)
| 2, [cf] -> FAnon(decode_ref cf)
| 3, [s] -> FDynamic(dec_string s)
| 4, [co;cf] ->
let co = match co with
| VNull -> None
| _ -> Some (decode_ref (field co "c"),List.map decode_type (dec_array (field co "params")))
in
FClosure(co,decode_ref cf)
| 5, [e;ef] -> FEnum(decode_ref e,decode_efield ef)
| _ -> raise Invalid_expr
let decode_module_type v =
match decode_enum v with
| 0, [c] -> TClassDecl (decode_ref c)
| 1, [en] -> TEnumDecl (decode_ref en)
| 2, [t] -> TTypeDecl (decode_ref t)
| 3, [a] -> TAbstractDecl (decode_ref a)
| _ -> raise Invalid_expr
let decode_tfunc v =
{
tf_args = List.map (fun v -> decode_tvar (field v "v"),opt decode_tconst (field v "value")) (dec_array (field v "args"));
tf_type = decode_type (field v "t");
tf_expr = decode_texpr (field v "expr")
}
let rec decode_texpr v =
let rec loop v =
mk (decode (field v "expr")) (decode_type (field v "t")) (decode_pos (field v "pos"))
and decode e =
match decode_enum e with
| 0, [c] -> TConst(decode_tconst c)
| 1, [v] -> TLocal(decode_tvar v)
| 2, [v1;v2] -> TArray(loop v1,loop v2)
| 3, [op;v1;v2] -> TBinop(decode_op op,loop v1,loop v2)
| 4, [v1;fa] -> TField(loop v1,decode_field_access fa)
| 5, [mt] -> TTypeExpr(decode_module_type mt)
| 6, [v1] -> TParenthesis(loop v1)
| 7, [v] -> TObjectDecl(List.map (fun v -> dec_string (field v "name"),loop (field v "expr")) (dec_array v))
| 8, [vl] -> TArrayDecl(List.map loop (dec_array vl))
| 9, [v1;vl] -> TCall(loop v1,List.map loop (dec_array vl))
| 10, [c;tl;vl] -> TNew(decode_ref c,List.map decode_type (dec_array tl),List.map loop (dec_array vl))
| 11, [op;pf;v1] -> TUnop(decode_unop op,(if dec_bool pf then Postfix else Prefix),loop v1)
| 12, [f] -> TFunction(decode_tfunc f)
| 13, [v;eo] -> TVar(decode_tvar v,opt loop eo)
| 14, [vl] -> TBlock(List.map loop (dec_array vl))
| 15, [v;v1;v2] -> TFor(decode_tvar v,loop v1,loop v2)
| 16, [vif;vthen;velse] -> TIf(loop vif,loop vthen,opt loop velse)
| 17, [vcond;v1;b] -> TWhile(loop vcond,loop v1,if dec_bool b then NormalWhile else DoWhile)
| 18, [v1;cl;vdef] -> TSwitch(loop v1,List.map (fun v -> List.map loop (dec_array (field v "values")),loop (field v "expr")) (dec_array cl),opt loop vdef)
| 19, [v1;cl] -> TTry(loop v1,List.map (fun v -> decode_tvar (field v "v"),loop (field v "expr")) (dec_array cl))
| 20, [vo] -> TReturn(opt loop vo)
| 21, [] -> TBreak
| 22, [] -> TContinue
| 23, [v1] -> TThrow(loop v1)
| 24, [v1;mto] -> TCast(loop v1,opt decode_module_type mto)
| 25, [m;v1] -> TMeta(decode_meta_entry m,loop v1)
| 26, [v1;ef;i] -> TEnumParameter(loop v1,decode_efield ef,match i with VInt i -> i | _ -> raise Invalid_expr)
| i,el -> Printf.printf "%i %i\n" i (List.length el); raise Invalid_expr
in
try
loop v
with Stack_overflow ->
raise Invalid_expr
(* ---------------------------------------------------------------------- *)
(* TYPE DEFINITION *)
let decode_type_def v =
let pack = List.map dec_string (dec_array (field v "pack")) in
let name = dec_string (field v "name") in
let meta = decode_meta_content (field v "meta") in
let pos = decode_pos (field v "pos") in
let isExtern = (match field v "isExtern" with VNull -> false | v -> dec_bool v) in
let fields = List.map decode_field (dec_array (field v "fields")) in
let mk fl dl =
{
d_name = name;
d_doc = None;
d_params = decode_tparams (field v "params");
d_meta = meta;
d_flags = fl;
d_data = dl;
}
in
let tdef = (match decode_enum (field v "kind") with
| 0, [] ->
let conv f =
let loop (n,opt,t,_) =
match t with
| None -> raise Invalid_expr
| Some t -> n, opt, t
in
let args, params, t = (match f.cff_kind with
| FVar (t,None) -> [], [], t
| FFun f -> List.map loop f.f_args, f.f_params, f.f_type
| _ -> raise Invalid_expr
) in
{
ec_name = f.cff_name;
ec_doc = f.cff_doc;
ec_meta = f.cff_meta;
ec_pos = f.cff_pos;
ec_args = args;
ec_params = params;
ec_type = t;
}
in
EEnum (mk (if isExtern then [EExtern] else []) (List.map conv fields))
| 1, [] ->
ETypedef (mk (if isExtern then [EExtern] else []) (CTAnonymous fields))
| 2, [ext;impl;interf] ->
let flags = if isExtern then [HExtern] else [] in
let flags = (match interf with VNull | VBool false -> flags | VBool true -> HInterface :: flags | _ -> raise Invalid_expr) in
let flags = (match opt decode_path ext with None -> flags | Some t -> HExtends t :: flags) in
let flags = (match opt (fun v -> List.map decode_path (dec_array v)) impl with None -> flags | Some l -> List.map (fun t -> HImplements t) l @ flags) in
EClass (mk flags fields)
| 3, [t] ->
ETypedef (mk (if isExtern then [EExtern] else []) (decode_ctype t))
| 4, [tthis;tfrom;tto] ->
let flags = match opt dec_array tfrom with None -> [] | Some ta -> List.map (fun t -> AFromType (decode_ctype t)) ta in
let flags = match opt dec_array tto with None -> flags | Some ta -> (List.map (fun t -> AToType (decode_ctype t)) ta) @ flags in
let flags = match opt decode_ctype tthis with None -> flags | Some t -> (AIsType t) :: flags in
EAbstract(mk flags fields)
| _ ->
raise Invalid_expr
) in
(* if our package ends with an uppercase letter, then it's the module name *)
let pack,name = (match List.rev pack with
| last :: l when not (is_lower_ident last) -> List.rev l, last
| _ -> pack, name
) in
(pack, name), tdef, pos
(* ---------------------------------------------------------------------- *)
(* VALUE-TO-CONSTANT *)
let rec make_const e =
match e.eexpr with
| TConst c ->
(match c with
| TInt i -> best_int i
| TFloat s -> VFloat (float_of_string s)
| TString s -> enc_string s
| TBool b -> VBool b
| TNull -> VNull
| TThis | TSuper -> raise Exit)
| TParenthesis e | TMeta(_,e) ->
make_const e
| TObjectDecl el ->
VObject (obj (hash_field (get_ctx())) (List.map (fun (f,e) -> f, make_const e) el))
| TArrayDecl al ->
enc_array (List.map make_const al)
| _ ->
raise Exit
(* ---------------------------------------------------------------------- *)
(* TEXPR-TO-AST-EXPR *)
open Ast
let tpath p mp pl =
if snd mp = snd p then
CTPath {
tpackage = fst p;
tname = snd p;
tparams = List.map (fun t -> TPType t) pl;
tsub = None;
}
else CTPath {
tpackage = fst mp;
tname = snd mp;
tparams = List.map (fun t -> TPType t) pl;
tsub = Some (snd p);
}
let rec make_type = function
| TMono r ->
(match !r with
| None -> raise Exit
| Some t -> make_type t)
| TEnum (e,pl) ->
tpath e.e_path e.e_module.m_path (List.map make_type pl)
| TInst({cl_kind = KTypeParameter _} as c,pl) ->
tpath ([],snd c.cl_path) ([],snd c.cl_path) (List.map make_type pl)
| TInst (c,pl) ->
tpath c.cl_path c.cl_module.m_path (List.map make_type pl)
| TType (t,pl) as tf ->
(* recurse on type-type *)
if (snd t.t_path).[0] = '#' then make_type (follow tf) else tpath t.t_path t.t_module.m_path (List.map make_type pl)
| TAbstract (a,pl) ->
tpath a.a_path a.a_module.m_path (List.map make_type pl)
| TFun (args,ret) ->
CTFunction (List.map (fun (_,_,t) -> make_type t) args, make_type ret)
| TAnon a ->
begin match !(a.a_status) with
| Statics c -> tpath ([],"Class") ([],"Class") [tpath c.cl_path c.cl_path []]
| EnumStatics e -> tpath ([],"Enum") ([],"Enum") [tpath e.e_path e.e_path []]
| _ ->
CTAnonymous (PMap.foldi (fun _ f acc ->
{
cff_name = f.cf_name;
cff_kind = FVar (mk_ot f.cf_type,None);
cff_pos = f.cf_pos;
cff_doc = f.cf_doc;
cff_meta = f.cf_meta;
cff_access = [];
} :: acc
) a.a_fields [])
end
| (TDynamic t2) as t ->
tpath ([],"Dynamic") ([],"Dynamic") (if t == t_dynamic then [] else [make_type t2])
| TLazy f ->
make_type ((!f)())
and mk_ot t =
match follow t with
| TMono _ -> None
| _ -> (try Some (make_type t) with Exit -> None)
let rec make_ast e =
let full_type_path t =
let mp,p = match t with
| TClassDecl c -> c.cl_module.m_path,c.cl_path
| TEnumDecl en -> en.e_module.m_path,en.e_path
| TAbstractDecl a -> a.a_module.m_path,a.a_path
| TTypeDecl t -> t.t_module.m_path,t.t_path
in
if snd mp = snd p then p else (fst mp) @ [snd mp],snd p
in
let mk_path (pack,name) p =
match List.rev pack with
| [] -> (EConst (Ident name),p)
| pl ->
let rec loop = function
| [] -> assert false
| [n] -> (EConst (Ident n),p)
| n :: l -> (EField (loop l, n),p)
in
(EField (loop pl,name),p)
in
let mk_const = function
| TInt i -> Int (Int32.to_string i)
| TFloat s -> Float s
| TString s -> String s
| TBool b -> Ident (if b then "true" else "false")
| TNull -> Ident "null"
| TThis -> Ident "this"
| TSuper -> Ident "super"
in
let mk_ident = function
| "`trace" -> Ident "trace"
| n -> Ident n
in
let eopt = function None -> None | Some e -> Some (make_ast e) in
((match e.eexpr with
| TConst c ->
EConst (mk_const c)
| TLocal v -> EConst (mk_ident v.v_name)
| TArray (e1,e2) -> EArray (make_ast e1,make_ast e2)
| TBinop (op,e1,e2) -> EBinop (op, make_ast e1, make_ast e2)
| TField (e,f) -> EField (make_ast e, Type.field_name f)
| TTypeExpr t -> fst (mk_path (full_type_path t) e.epos)
| TParenthesis e -> EParenthesis (make_ast e)
| TObjectDecl fl -> EObjectDecl (List.map (fun (f,e) -> f, make_ast e) fl)
| TArrayDecl el -> EArrayDecl (List.map make_ast el)
| TCall (e,el) -> ECall (make_ast e,List.map make_ast el)
| TNew (c,pl,el) -> ENew ((match (try make_type (TInst (c,pl)) with Exit -> make_type (TInst (c,[]))) with CTPath p -> p | _ -> assert false),List.map make_ast el)
| TUnop (op,p,e) -> EUnop (op,p,make_ast e)
| TFunction f ->
let arg (v,c) = v.v_name, false, mk_ot v.v_type, (match c with None -> None | Some c -> Some (EConst (mk_const c),e.epos)) in
EFunction (None,{ f_params = []; f_args = List.map arg f.tf_args; f_type = mk_ot f.tf_type; f_expr = Some (make_ast f.tf_expr) })
| TVar (v,eo) ->
EVars ([v.v_name, mk_ot v.v_type, eopt eo])
| TBlock el -> EBlock (List.map make_ast el)
| TFor (v,it,e) ->
let ein = (EIn ((EConst (Ident v.v_name),it.epos),make_ast it),it.epos) in
EFor (ein,make_ast e)
| TIf (e,e1,e2) -> EIf (make_ast e,make_ast e1,eopt e2)
| TWhile (e1,e2,flag) -> EWhile (make_ast e1, make_ast e2, flag)
| TSwitch (e,cases,def) ->
let cases = List.map (fun (vl,e) ->
List.map make_ast vl,None,(match e.eexpr with TBlock [] -> None | _ -> Some (make_ast e))
) cases in
let def = match eopt def with None -> None | Some (EBlock [],_) -> Some None | e -> Some e in
ESwitch (make_ast e,cases,def)
| TEnumParameter _ ->
(* these are considered complex, so the AST is handled in TMeta(Meta.Ast) *)
assert false
| TTry (e,catches) -> ETry (make_ast e,List.map (fun (v,e) -> v.v_name, (try make_type v.v_type with Exit -> assert false), make_ast e) catches)
| TReturn e -> EReturn (eopt e)
| TBreak -> EBreak
| TContinue -> EContinue
| TThrow e -> EThrow (make_ast e)
| TCast (e,t) ->
let t = (match t with
| None -> None
| Some t ->
let t = (match t with TClassDecl c -> TInst (c,[]) | TEnumDecl e -> TEnum (e,[]) | TTypeDecl t -> TType (t,[]) | TAbstractDecl a -> TAbstract (a,[])) in
Some (try make_type t with Exit -> assert false)
) in
ECast (make_ast e,t)
| TMeta ((Meta.Ast,[e1,_],_),_) -> e1
| TMeta (m,e) -> EMeta(m,make_ast e))
,e.epos)
;;
make_ast_ref := make_ast;
make_complex_type_ref := make_type;
encode_complex_type_ref := encode_ctype;
enc_array_ref := enc_array;
dec_array_ref := dec_array;
encode_type_ref := encode_type;
decode_type_ref := decode_type;
encode_expr_ref := encode_expr;
decode_expr_ref := decode_expr;
encode_clref_ref := encode_clref;
enc_string_ref := enc_string;
enc_hash_ref := enc_hash;
encode_texpr_ref := encode_texpr;
decode_texpr_ref := decode_texpr;
encode_tvar_ref := encode_tvar;
decode_path_ref := decode_path;
decode_import_ref := decode_import;
|