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gencs.ml
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(*
* haXe/C# & Java Compiler
* Copyright (c)2011 Cauê Waneck
* based on and including code by (c)2005-2008 Nicolas Cannasse, Hugh Sanderson and Franco Ponticelli
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
open Gencommon.ReflectionCFs
open Ast
open Common
open Gencommon
open Gencommon.SourceWriter
open Type
open Printf
open Option
let is_cs_basic_type t =
match follow t with
| TInst( { cl_path = (["haxe"], "Int32") }, [] )
| TInst( { cl_path = (["haxe"], "Int64") }, [] )
| TInst( { cl_path = ([], "Int") }, [] )
| TAbstract ({ a_path = ([], "Int") },[])
| TInst( { cl_path = ([], "Float") }, [] )
| TAbstract ({ a_path = ([], "Float") },[])
| TEnum( { e_path = ([], "Bool") }, [] )
| TAbstract ({ a_path = ([], "Bool") },[]) ->
true
| TAbstract _ when like_float t ->
true
| TEnum(e, _) when not (has_meta ":$class" e.e_meta) -> true
| TInst(cl, _) when has_meta ":struct" cl.cl_meta -> true
| _ -> false
let is_tparam t =
match follow t with
| TInst( { cl_kind = KTypeParameter _ }, [] ) -> true
| _ -> false
let rec is_int_float t =
match follow t with
| TInst( { cl_path = (["haxe"], "Int32") }, [] )
| TInst( { cl_path = (["haxe"], "Int64") }, [] )
| TInst( { cl_path = ([], "Int") }, [] )
| TAbstract ({ a_path = ([], "Int") },[])
| TInst( { cl_path = ([], "Float") }, [] )
| TAbstract ({ a_path = ([], "Float") },[]) ->
true
| TAbstract _ when like_float t ->
true
| TInst( { cl_path = (["haxe"; "lang"], "Null") }, [t] ) -> is_int_float t
| _ -> false
let rec is_null t =
match t with
| TInst( { cl_path = (["haxe"; "lang"], "Null") }, _ )
| TType( { t_path = ([], "Null") }, _ ) -> true
| TType( t, tl ) -> is_null (apply_params t.t_types tl t.t_type)
| TMono r ->
(match !r with
| Some t -> is_null t
| _ -> false)
| TLazy f ->
is_null (!f())
| _ -> false
let parse_explicit_iface =
let regex = Str.regexp "\\." in
let parse_explicit_iface str =
let split = Str.split regex str in
let rec get_iface split pack =
match split with
| clname :: fn_name :: [] -> fn_name, (List.rev pack, clname)
| pack_piece :: tl -> get_iface tl (pack_piece :: pack)
| _ -> assert false
in
get_iface split []
in parse_explicit_iface
let is_string t =
match follow t with
| TInst( { cl_path = ([], "String") }, [] ) -> true
| _ -> false
(* ******************************************* *)
(* CSharpSpecificESynf *)
(* ******************************************* *)
(*
Some CSharp-specific syntax filters that must run before ExpressionUnwrap
dependencies:
It must run before ExprUnwrap, as it may not return valid Expr/Statement expressions
It must run before ClassInstance, as it will detect expressions that need unchanged TTypeExpr
*)
module CSharpSpecificESynf =
struct
let name = "csharp_specific_e"
let priority = solve_deps name [DBefore ExpressionUnwrap.priority; DBefore ClassInstance.priority; DAfter TryCatchWrapper.priority]
let get_cl_from_t t =
match follow t with
| TInst(cl,_) -> cl
| _ -> assert false
let traverse gen runtime_cl =
let basic = gen.gcon.basic in
let uint = match get_type gen ([], "UInt") with | TTypeDecl t -> TType(t, []) | TAbstractDecl a -> TAbstract(a, []) | _ -> assert false in
let is_var = alloc_var "__is__" t_dynamic in
let rec run e =
match e.eexpr with
(* Std.is() *)
| TCall(
{ eexpr = TField( { eexpr = TTypeExpr ( TClassDecl { cl_path = ([], "Std") } ) }, "is") },
[ obj; { eexpr = TTypeExpr(TClassDecl { cl_path = [], "Dynamic" }) }]
) ->
Type.map_expr run e
| TCall(
{ eexpr = TField( { eexpr = TTypeExpr ( TClassDecl { cl_path = ([], "Std") } ) }, "is") },
[ obj; { eexpr = TTypeExpr(md) }]
) ->
let mk_is obj md =
{ e with eexpr = TCall( { eexpr = TLocal is_var; etype = t_dynamic; epos = e.epos }, [
obj;
{ eexpr = TTypeExpr md; etype = t_dynamic (* this is after all a syntax filter *); epos = e.epos }
] ) }
in
let obj = run obj in
(match follow_module follow md with
| TClassDecl{ cl_path = ([], "Float") } ->
(* on the special case of seeing if it is a Float, we need to test if both it is a float and if it is an Int *)
let mk_is local =
mk_paren {
eexpr = TBinop(Ast.OpBoolOr, mk_is local md, mk_is local (TClassDecl (get_cl_from_t basic.tint)));
etype = basic.tbool;
epos = e.epos
}
in
let ret = match obj.eexpr with
| TLocal(v) -> mk_is obj
| _ ->
let var = mk_temp gen "is" obj.etype in
let added = { obj with eexpr = TVars([var, Some(obj)]); etype = basic.tvoid } in
let local = mk_local var obj.epos in
{
eexpr = TBlock([ added; mk_is local ]);
etype = basic.tbool;
epos = e.epos
}
in
ret
| TClassDecl{ cl_path = ([], "Int") } ->
{
eexpr = TCall(
mk_static_field_access_infer runtime_cl "isInt" e.epos [],
[ obj ]
);
etype = basic.tbool;
epos = e.epos
}
| _ ->
mk_is obj md
)
(* end Std.is() *)
| TBinop( Ast.OpUShr, e1, e2 ) ->
mk_cast e.etype { e with eexpr = TBinop( Ast.OpShr, mk_cast uint (run e1), run e2 ) }
| TBinop( Ast.OpAssignOp Ast.OpUShr, e1, e2 ) ->
let mk_ushr local =
{ e with eexpr = TBinop(Ast.OpAssign, local, run { e with eexpr = TBinop(Ast.OpUShr, local, run e2) }) }
in
let mk_local obj =
let var = mk_temp gen "opUshr" obj.etype in
let added = { obj with eexpr = TVars([var, Some(obj)]); etype = basic.tvoid } in
let local = mk_local var obj.epos in
local, added
in
let e1 = run e1 in
let ret = match e1.eexpr with
| TField({ eexpr = TLocal _ }, _)
| TField({ eexpr = TTypeExpr _ }, _)
| TArray({ eexpr = TLocal _ }, _)
| TLocal(_) ->
mk_ushr e1
| TField(fexpr, field) ->
let local, added = mk_local fexpr in
{ e with eexpr = TBlock([ added; mk_ushr { e1 with eexpr = TField(local, field) } ]); }
| TArray(ea1, ea2) ->
let local, added = mk_local ea1 in
{ e with eexpr = TBlock([ added; mk_ushr { e1 with eexpr = TArray(local, ea2) } ]); }
| _ -> (* invalid left-side expression *)
assert false
in
ret
| _ -> Type.map_expr run e
in
run
let configure gen (mapping_func:texpr->texpr) =
let map e = Some(mapping_func e) in
gen.gsyntax_filters#add ~name:name ~priority:(PCustom priority) map
end;;
(* ******************************************* *)
(* CSharpSpecificSynf *)
(* ******************************************* *)
(*
Some CSharp-specific syntax filters that can run after ExprUnwrap
dependencies:
Runs after ExprUnwrap
*)
module CSharpSpecificSynf =
struct
let name = "csharp_specific"
let priority = solve_deps name [ DAfter ExpressionUnwrap.priority; DAfter ObjectDeclMap.priority; DAfter ArrayDeclSynf.priority; DBefore IntDivisionSynf.priority; DAfter HardNullableSynf.priority ]
let get_cl_from_t t =
match follow t with
| TInst(cl,_) -> cl
| _ -> assert false
let is_tparam t =
match follow t with
| TInst( { cl_kind = KTypeParameter _ }, _ ) -> true
| _ -> false
let traverse gen runtime_cl =
let basic = gen.gcon.basic in
let tchar = match ( get_type gen (["cs"], "Char16") ) with | TTypeDecl t -> t | _ -> assert false in
let tchar = TType(tchar,[]) in
let string_ext = get_cl ( get_type gen (["haxe";"lang"], "StringExt")) in
let is_string t = match follow t with | TInst({ cl_path = ([], "String") }, []) -> true | _ -> false in
let clstring = match basic.tstring with | TInst(cl,_) -> cl | _ -> assert false in
let is_struct t = (* not basic type *)
match follow t with
| TInst(cl, _) when has_meta ":struct" cl.cl_meta -> true
| _ -> false
in
let is_cl t = match gen.greal_type t with | TInst ( { cl_path = (["System"], "Type") }, [] ) -> true | _ -> false in
let rec run e =
match e.eexpr with
(* Std.int() *)
| TCall(
{ eexpr = TField( { eexpr = TTypeExpr ( TClassDecl ({ cl_path = ([], "Std") }) ) }, "int") },
[obj]
) ->
run (mk_cast basic.tint obj)
(* end Std.int() *)
| TField(ef, "length") when is_string ef.etype ->
{ e with eexpr = TField(run ef, "Length") }
| TField(ef, ("toLowerCase")) when is_string ef.etype ->
{ e with eexpr = TField(run ef, "ToLower") }
| TField(ef, ("toUpperCase")) when is_string ef.etype ->
{ e with eexpr = TField(run ef, "ToUpper") }
| TCall( ( { eexpr = TField({ eexpr = TTypeExpr (TClassDecl cl) }, "fromCharCode") } ), [cc] ) ->
{ e with eexpr = TNew(get_cl_from_t basic.tstring, [], [mk_cast tchar (run cc); mk_int gen 1 cc.epos]) }
| TCall( ( { eexpr = TField({ eexpr = TTypeExpr (TTypeDecl t) }, "fromCharCode") } ), [cc] ) when is_string (follow (TType(t,List.map snd t.t_types))) ->
{ e with eexpr = TNew(get_cl_from_t basic.tstring, [], [mk_cast tchar (run cc); mk_int gen 1 cc.epos]) }
| TCall( ( { eexpr = TField(ef, ("charAt" as field)) } ), args )
| TCall( ( { eexpr = TField(ef, ("charCodeAt" as field)) } ), args )
| TCall( ( { eexpr = TField(ef, ("indexOf" as field)) } ), args )
| TCall( ( { eexpr = TField(ef, ("lastIndexOf" as field)) } ), args )
| TCall( ( { eexpr = TField(ef, ("split" as field)) } ), args )
| TCall( ( { eexpr = TField(ef, ("substring" as field)) } ), args )
| TCall( ( { eexpr = TField(ef, ("substr" as field)) } ), args ) when is_string ef.etype ->
{ e with eexpr = TCall(mk_static_field_access_infer string_ext field e.epos [], [run ef] @ (List.map run args)) }
| TNew( { cl_path = ([], "String") }, [], [p] ) -> run p (* new String(myString) -> myString *)
| TCast(expr, _) when is_int_float e.etype && not (is_int_float expr.etype) && not (is_null e.etype) ->
let needs_cast = match gen.gfollow#run_f e.etype with
| TInst _ -> false
| _ -> true
in
let fun_name = if like_int e.etype then "toInt" else "toDouble" in
let ret = {
eexpr = TCall(
mk_static_field_access_infer runtime_cl fun_name expr.epos [],
[ run expr ]
);
etype = basic.tint;
epos = expr.epos
} in
if needs_cast then mk_cast e.etype ret else ret
| TCast(expr, _) when is_string e.etype ->
{ e with eexpr = TCall( mk_static_field_access_infer runtime_cl "toString" expr.epos [], [run expr] ) }
| TBinop( (Ast.OpNotEq as op), e1, e2)
| TBinop( (Ast.OpEq as op), e1, e2) when is_string e1.etype || is_string e2.etype ->
let mk_ret e = match op with | Ast.OpNotEq -> { e with eexpr = TUnop(Ast.Not, Ast.Prefix, e) } | _ -> e in
mk_ret { e with
eexpr = TCall({
eexpr = TField(mk_classtype_access clstring e.epos, "Equals");
etype = TFun(["obj1",false,basic.tstring; "obj2",false,basic.tstring], basic.tbool);
epos = e1.epos
}, [ run e1; run e2 ])
}
| TCast(expr, _) when is_tparam e.etype ->
let static = mk_static_field_access_infer (runtime_cl) "genericCast" e.epos [e.etype] in
{ e with eexpr = TCall(static, [mk_local (alloc_var "$type_param" e.etype) expr.epos; run expr]); }
| TBinop( (Ast.OpNotEq as op), e1, e2)
| TBinop( (Ast.OpEq as op), e1, e2) when is_struct e1.etype || is_struct e2.etype ->
let mk_ret e = match op with | Ast.OpNotEq -> { e with eexpr = TUnop(Ast.Not, Ast.Prefix, e) } | _ -> e in
mk_ret { e with
eexpr = TCall({
eexpr = TField(run e1, "Equals");
etype = TFun(["obj1",false,t_dynamic;], basic.tbool);
epos = e1.epos
}, [ run e2 ])
}
| TBinop ( (Ast.OpEq as op), e1, e2 )
| TBinop ( (Ast.OpNotEq as op), e1, e2 ) when is_cl e1.etype ->
let static = mk_static_field_access_infer (runtime_cl) "typeEq" e.epos [] in
let ret = { e with eexpr = TCall(static, [run e1; run e2]); } in
if op = Ast.OpNotEq then
{ ret with eexpr = TUnop(Ast.Not, Ast.Prefix, ret) }
else
ret
| _ -> Type.map_expr run e
in
run
let configure gen (mapping_func:texpr->texpr) =
let map e = Some(mapping_func e) in
gen.gsyntax_filters#add ~name:name ~priority:(PCustom priority) map
end;;
(* Type Parameters Handling *)
let handle_type_params gen ifaces base_generic =
let basic = gen.gcon.basic in
(*
starting to set gtparam_cast.
*)
(* NativeArray: the most important. *)
(*
var new_arr = new NativeArray<TO_T>(old_arr.Length);
var i = -1;
while( i < old_arr.Length )
{
new_arr[i] = (TO_T) old_arr[i];
}
*)
let native_arr_cl = get_cl ( get_type gen (["cs"], "NativeArray") ) in
let get_narr_param t = match follow t with
| TInst({ cl_path = (["cs"], "NativeArray") }, [param]) -> param
| _ -> assert false
in
let gtparam_cast_native_array e to_t =
let old_param = get_narr_param e.etype in
let new_param = get_narr_param to_t in
let new_v = mk_temp gen "new_arr" to_t in
let i = mk_temp gen "i" basic.tint in
let old_len = { eexpr = TField(e, "Length"); etype = basic.tint; epos = e.epos } in
let obj_v = mk_temp gen "obj" t_dynamic in
let block = [
{
eexpr = TVars(
[
new_v, Some( {
eexpr = TNew(native_arr_cl, [new_param], [old_len] );
etype = to_t;
epos = e.epos
} );
i, Some( mk_int gen (-1) e.epos )
]);
etype = basic.tvoid;
epos = e.epos };
{
eexpr = TWhile(
{
eexpr = TBinop(
Ast.OpLt,
{ eexpr = TUnop(Ast.Increment, Ast.Prefix, mk_local i e.epos); etype = basic.tint; epos = e.epos },
old_len
);
etype = basic.tbool;
epos = e.epos
},
{ eexpr = TBlock [
{
eexpr = TVars([obj_v, Some (mk_cast t_dynamic { eexpr = TArray(e, mk_local i e.epos); etype = old_param; epos = e.epos })]);
etype = basic.tvoid;
epos = e.epos
};
{
eexpr = TIf({
eexpr = TBinop(Ast.OpNotEq, mk_local obj_v e.epos, null e.etype e.epos);
etype = basic.tbool;
epos = e.epos
},
{
eexpr = TBinop(
Ast.OpAssign,
{ eexpr = TArray(mk_local new_v e.epos, mk_local i e.epos); etype = new_param; epos = e.epos },
mk_cast new_param (mk_local obj_v e.epos)
);
etype = new_param;
epos = e.epos
},
None);
etype = basic.tvoid;
epos = e.epos
}
]; etype = basic.tvoid; epos = e.epos },
Ast.NormalWhile
);
etype = basic.tvoid;
epos = e.epos;
};
mk_local new_v e.epos
] in
{ eexpr = TBlock(block); etype = to_t; epos = e.epos }
in
Hashtbl.add gen.gtparam_cast (["cs"], "NativeArray") gtparam_cast_native_array;
(* end set gtparam_cast *)
TypeParams.RealTypeParams.default_config gen (fun e t -> gen.gcon.warning ("Cannot cast to " ^ (debug_type t)) e.epos; mk_cast t e) ifaces base_generic
let connecting_string = "?" (* ? see list here http://www.fileformat.info/info/unicode/category/index.htm and here for C# http://msdn.microsoft.com/en-us/library/aa664670.aspx *)
let default_package = "cs" (* I'm having this separated as I'm still not happy with having a cs package. Maybe dotnet would be better? *)
let strict_mode = ref false (* strict mode is so we can check for unexpected information *)
(* reserved c# words *)
let reserved = let res = Hashtbl.create 120 in
List.iter (fun lst -> Hashtbl.add res lst ("@" ^ lst)) ["abstract"; "as"; "base"; "bool"; "break"; "byte"; "case"; "catch"; "char"; "checked"; "class";
"const"; "continue"; "decimal"; "default"; "delegate"; "do"; "double"; "else"; "enum"; "event"; "explicit";
"extern"; "false"; "finally"; "fixed"; "float"; "for"; "foreach"; "goto"; "if"; "implicit"; "in"; "int";
"interface"; "internal"; "is"; "lock"; "long"; "namespace"; "new"; "null"; "object"; "operator"; "out"; "override";
"params"; "private"; "protected"; "public"; "readonly"; "ref"; "return"; "sbyte"; "sealed"; "short"; "sizeof";
"stackalloc"; "static"; "string"; "struct"; "switch"; "this"; "throw"; "true"; "try"; "typeof"; "uint"; "ulong";
"unchecked"; "unsafe"; "ushort"; "using"; "virtual"; "volatile"; "void"; "while"; "add"; "ascending"; "by"; "descending";
"dynamic"; "equals"; "from"; "get"; "global"; "group"; "into"; "join"; "let"; "on"; "orderby"; "partial";
"remove"; "select"; "set"; "value"; "var"; "where"; "yield"];
res
let dynamic_anon = TAnon( { a_fields = PMap.empty; a_status = ref Closed } )
let rec get_class_modifiers meta cl_type cl_access cl_modifiers =
match meta with
| [] -> cl_type,cl_access,cl_modifiers
| (":struct",[],_) :: meta -> get_class_modifiers meta "struct" cl_access cl_modifiers
| (":protected",[],_) :: meta -> get_class_modifiers meta cl_type "protected" cl_modifiers
| (":internal",[],_) :: meta -> get_class_modifiers meta cl_type "internal" cl_modifiers
(* no abstract for now | (":abstract",[],_) :: meta -> get_class_modifiers meta cl_type cl_access ("abstract" :: cl_modifiers)
| (":static",[],_) :: meta -> get_class_modifiers meta cl_type cl_access ("static" :: cl_modifiers) TODO: support those types *)
| (":final",[],_) :: meta -> get_class_modifiers meta cl_type cl_access ("sealed" :: cl_modifiers)
| (":unsafe",[],_) :: meta -> get_class_modifiers meta cl_type cl_access ("unsafe" :: cl_modifiers)
| _ :: meta -> get_class_modifiers meta cl_type cl_access cl_modifiers
let rec get_fun_modifiers meta access modifiers =
match meta with
| [] -> access,modifiers
| (":protected",[],_) :: meta -> get_fun_modifiers meta "protected" modifiers
| (":internal",[],_) :: meta -> get_fun_modifiers meta "internal" modifiers
| (":readonly",[],_) :: meta -> get_fun_modifiers meta access ("readonly" :: modifiers)
| (":unsafe",[],_) :: meta -> get_fun_modifiers meta access ("unsafe" :: modifiers)
| (":volatile",[],_) :: meta -> get_fun_modifiers meta access ("volatile" :: modifiers)
| _ :: meta -> get_fun_modifiers meta access modifiers
(* this was the way I found to pass the generator context to be accessible across all functions here *)
(* so 'configure' is almost 'top-level' and will have all functions needed to make this work *)
let configure gen =
let basic = gen.gcon.basic in
let fn_cl = get_cl (get_type gen (["haxe";"lang"],"Function")) in
let null_t = (get_cl (get_type gen (["haxe";"lang"],"Null")) ) in
let runtime_cl = get_cl (get_type gen (["haxe";"lang"],"Runtime")) in
let no_root = Common.defined gen.gcon Define.NoRoot in
let change_ns = if no_root then
function
| [] -> ["haxe";"root"]
| ns -> ns
else fun ns -> ns in
let change_clname n = n in
let change_id name = try Hashtbl.find reserved name with | Not_found -> name in
let change_field = change_id in
let write_id w name = write w (change_id name) in
let write_field w name = write w (change_field name) in
gen.gfollow#add ~name:"follow_basic" (fun t -> match t with
| TEnum ({ e_path = ([], "Bool") }, [])
| TAbstract ({ a_path = ([], "Bool") },[])
| TEnum ({ e_path = ([], "Void") }, [])
| TAbstract ({ a_path = ([], "Void") },[])
| TInst ({ cl_path = ([],"Float") },[])
| TAbstract ({ a_path = ([],"Float") },[])
| TInst ({ cl_path = ([],"Int") },[])
| TAbstract ({ a_path = ([],"Int") },[])
| TType ({ t_path = [],"UInt" },[])
| TAbstract ({ a_path = [],"UInt" },[])
| TType ({ t_path = ["haxe";"_Int64"], "NativeInt64" },[])
| TAbstract ({ a_path = ["haxe";"_Int64"], "NativeInt64" },[])
| TType ({ t_path = ["haxe";"_Int64"], "NativeUInt64" },[])
| TAbstract ({ a_path = ["haxe";"_Int64"], "NativeUInt64" },[])
| TType ({ t_path = ["cs"],"UInt64" },[])
| TAbstract ({ a_path = ["cs"],"UInt64" },[])
| TType ({ t_path = ["cs"],"UInt8" },[])
| TAbstract ({ a_path = ["cs"],"UInt8" },[])
| TType ({ t_path = ["cs"],"Int8" },[])
| TAbstract ({ a_path = ["cs"],"Int8" },[])
| TType ({ t_path = ["cs"],"Int16" },[])
| TAbstract ({ a_path = ["cs"],"Int16" },[])
| TType ({ t_path = ["cs"],"UInt16" },[])
| TAbstract ({ a_path = ["cs"],"UInt16" },[])
| TType ({ t_path = ["cs"],"Char16" },[])
| TAbstract ({ a_path = ["cs"],"Char16" },[])
| TType ({ t_path = ["cs"],"Ref" },_)
| TAbstract ({ a_path = ["cs"],"Ref" },_)
| TType ({ t_path = ["cs"],"Out" },_)
| TAbstract ({ a_path = ["cs"],"Out" },_)
| TType ({ t_path = [],"Single" },[])
| TAbstract ({ a_path = [],"Single" },[]) -> Some t
| TAbstract( { a_path = ([], "EnumValue") }, _ )
| TInst( { cl_path = ([], "EnumValue") }, _ ) -> Some t_dynamic
| _ -> None);
let path_s path = match path with
| ([], "String") -> "string"
| ([], "Null") -> path_s (change_ns ["haxe"; "lang"], change_clname "Null")
| (ns,clname) -> path_s (change_ns ns, change_clname clname)
in
let ifaces = Hashtbl.create 1 in
let ti64 = match ( get_type gen (["haxe";"_Int64"], "NativeInt64") ) with | TTypeDecl t -> TType(t,[]) | TAbstractDecl a -> TAbstract(a,[]) | _ -> assert false in
let ttype = get_cl ( get_type gen (["System"], "Type") ) in
let rec real_type t =
let t = gen.gfollow#run_f t in
let ret = match t with
| TInst( { cl_path = (["haxe"], "Int32") }, [] ) -> gen.gcon.basic.tint
| TInst( { cl_path = (["haxe"], "Int64") }, [] ) -> ti64
| TAbstract( { a_path = [],"Class" }, _ )
| TAbstract( { a_path = [],"Enum" }, _ )
| TInst( { cl_path = ([], "Class") }, _ )
| TInst( { cl_path = ([], "Enum") }, _ ) -> TInst(ttype,[])
| TEnum(_, [])
| TInst(_, []) -> t
| TInst(cl, params) when
List.exists (fun t -> match follow t with | TDynamic _ -> true | _ -> false) params &&
Hashtbl.mem ifaces cl.cl_path ->
TInst(Hashtbl.find ifaces cl.cl_path, [])
| TEnum(e, params) when
List.exists (fun t -> match follow t with | TDynamic _ -> true | _ -> false) params &&
Hashtbl.mem ifaces e.e_path ->
TInst(Hashtbl.find ifaces e.e_path, [])
| TInst(cl, params) -> TInst(cl, change_param_type (TClassDecl cl) params)
| TEnum(e, params) -> TEnum(e, change_param_type (TEnumDecl e) params)
| TType({ t_path = ([], "Null") }, [t]) ->
(*
Null<> handling is a little tricky.
It will only change to haxe.lang.Null<> when the actual type is non-nullable or a type parameter
It works on cases such as Hash<T> returning Null<T> since cast_detect will invoke real_type at the original type,
Null<T>, which will then return the type haxe.lang.Null<>
*)
(match real_type t with
| TInst( { cl_kind = KTypeParameter _ }, _ ) -> TInst(null_t, [t])
| _ when is_cs_basic_type t -> TInst(null_t, [t])
| _ -> real_type t)
| TAbstract _
| TType _ -> t
| TAnon (anon) when (match !(anon.a_status) with | Statics _ | EnumStatics _ -> true | _ -> false) -> t
| TFun _ -> TInst(fn_cl,[])
| _ -> t_dynamic
in
ret
and
(*
On hxcs, the only type parameters allowed to be declared are the basic c# types.
That's made like this to avoid casting problems when type parameters in this case
add nothing to performance, since the memory layout is always the same.
To avoid confusion between Generic<Dynamic> (which has a different meaning in hxcs AST),
all those references are using dynamic_anon, which means Generic<{}>
*)
change_param_type md tl =
let is_hxgeneric = (TypeParams.RealTypeParams.is_hxgeneric md) in
let ret t = match is_hxgeneric, real_type t with
| false, _ -> t
(*
Because Null<> types need a special compiler treatment for many operations (e.g. boxing/unboxing),
Null<> type parameters will be transformed into Dynamic.
*)
| true, TInst ( { cl_path = (["haxe";"lang"], "Null") }, _ ) -> dynamic_anon
| true, TInst ( { cl_kind = KTypeParameter _ }, _ ) -> t
| true, TInst _
| true, TEnum _
| true, TAbstract _ when is_cs_basic_type t -> t
| true, TDynamic _ -> t
| true, _ -> dynamic_anon
in
if is_hxgeneric && List.exists (fun t -> match follow t with | TDynamic _ -> true | _ -> false) tl then
List.map (fun _ -> t_dynamic) tl
else
List.map ret tl
in
let is_dynamic t = match real_type t with
| TMono _ | TDynamic _ -> true
| TAnon anon ->
(match !(anon.a_status) with
| EnumStatics _ | Statics _ -> false
| _ -> true
)
| _ -> false
in
let rec t_s t =
match real_type t with
(* basic types *)
| TEnum ({ e_path = ([], "Bool") }, [])
| TAbstract ({ a_path = ([], "Bool") },[]) -> "bool"
| TEnum ({ e_path = ([], "Void") }, [])
| TAbstract ({ a_path = ([], "Void") },[]) -> "object"
| TInst ({ cl_path = ([],"Float") },[])
| TAbstract ({ a_path = ([],"Float") },[]) -> "double"
| TInst ({ cl_path = ([],"Int") },[])
| TAbstract ({ a_path = ([],"Int") },[]) -> "int"
| TType ({ t_path = [],"UInt" },[])
| TAbstract ({ a_path = [],"UInt" },[]) -> "uint"
| TType ({ t_path = ["haxe";"_Int64"], "NativeInt64" },[])
| TAbstract ({ a_path = ["haxe";"_Int64"], "NativeInt64" },[]) -> "long"
| TType ({ t_path = ["haxe";"_Int64"], "NativeUInt64" },[])
| TAbstract ({ a_path = ["haxe";"_Int64"], "NativeUInt64" },[]) -> "ulong"
| TType ({ t_path = ["cs"],"UInt64" },[])
| TAbstract ({ a_path = ["cs"],"UInt64" },[]) -> "ulong"
| TType ({ t_path = ["cs"],"UInt8" },[])
| TAbstract ({ a_path = ["cs"],"UInt8" },[]) -> "byte"
| TType ({ t_path = ["cs"],"Int8" },[])
| TAbstract ({ a_path = ["cs"],"Int8" },[]) -> "sbyte"
| TType ({ t_path = ["cs"],"Int16" },[])
| TAbstract ({ a_path = ["cs"],"Int16" },[]) -> "short"
| TType ({ t_path = ["cs"],"UInt16" },[])
| TAbstract ({ a_path = ["cs"],"UInt16" },[]) -> "ushort"
| TType ({ t_path = ["cs"],"Char16" },[])
| TAbstract ({ a_path = ["cs"],"Char16" },[]) -> "char"
| TType ({ t_path = [],"Single" },[])
| TAbstract ({ a_path = [],"Single" },[]) -> "float"
| TInst ({ cl_path = ["haxe"],"Int32" },[])
| TAbstract ({ a_path = ["haxe"],"Int32" },[]) -> "int"
| TInst ({ cl_path = ["haxe"],"Int64" },[])
| TAbstract ({ a_path = ["haxe"],"Int64" },[]) -> "long"
| TInst ({ cl_path = ([], "Dynamic") },_)
| TAbstract ({ a_path = ([], "Dynamic") },_) -> "object"
| TType ({ t_path = ["cs"],"Out" },[t])
| TAbstract ({ a_path = ["cs"],"Out" },[t])
| TType ({ t_path = ["cs"],"Ref" },[t])
| TAbstract ({ a_path = ["cs"],"Ref" },[t]) -> t_s t
| TInst({ cl_path = (["cs"], "NativeArray") }, [param]) ->
let rec check_t_s t =
match real_type t with
| TInst({ cl_path = (["cs"], "NativeArray") }, [param]) ->
(check_t_s param) ^ "[]"
| _ -> t_s (run_follow gen t)
in
(check_t_s param) ^ "[]"
| TInst({ cl_path = (["cs"], "Pointer") },[t])
| TAbstract({ a_path = (["cs"], "Pointer") },[t])->
t_s t ^ "*"
(* end of basic types *)
| TInst ({ cl_kind = KTypeParameter _; cl_path=p }, []) -> snd p
| TMono r -> (match !r with | None -> "object" | Some t -> t_s (run_follow gen t))
| TInst ({ cl_path = [], "String" }, []) -> "string"
| TEnum ({ e_path = p }, params) -> (path_s p)
| TInst (({ cl_path = p } as cl), _ :: _) when has_meta ":$enum" cl.cl_meta ->
path_s p
| TInst (({ cl_path = p } as cl), params) -> (path_param_s (TClassDecl cl) p params)
| TType (({ t_path = p } as t), params) -> (path_param_s (TTypeDecl t) p params)
| TAnon (anon) ->
(match !(anon.a_status) with
| Statics _ | EnumStatics _ -> "System.Type"
| _ -> "object")
| TDynamic _ -> "object"
(* No Lazy type nor Function type made. That's because function types will be at this point be converted into other types *)
| _ -> if !strict_mode then begin trace ("[ !TypeError " ^ (Type.s_type (Type.print_context()) t) ^ " ]"); assert false end else "[ !TypeError " ^ (Type.s_type (Type.print_context()) t) ^ " ]"
and path_param_s md path params =
match params with
| [] -> path_s path
| _ -> sprintf "%s<%s>" (path_s path) (String.concat ", " (List.map (fun t -> t_s t) (change_param_type md params)))
in
let rett_s t =
match t with
| TEnum ({e_path = ([], "Void")}, [])
| TAbstract ({ a_path = ([], "Void") },[]) -> "void"
| _ -> t_s t
in
let argt_s t =
match t with
| TType ({ t_path = (["cs"], "Ref") }, [t])
| TAbstract ({ a_path = (["cs"], "Ref") },[t]) -> "ref " ^ t_s t
| TType ({ t_path = (["cs"], "Out") }, [t])
| TAbstract ({ a_path = (["cs"], "Out") },[t]) -> "out " ^ t_s t
| _ -> t_s t
in
let escape ichar b =
match ichar with
| 92 (* \ *) -> Buffer.add_string b "\\\\"
| 39 (* ' *) -> Buffer.add_string b "\\\'"
| 34 -> Buffer.add_string b "\\\""
| 13 (* \r *) -> Buffer.add_string b "\\r"
| 10 (* \n *) -> Buffer.add_string b "\\n"
| 9 (* \t *) -> Buffer.add_string b "\\t"
| c when c < 32 || c >= 127 -> Buffer.add_string b (Printf.sprintf "\\u%.4x" c)
| c -> Buffer.add_char b (Char.chr c)
in
let escape s =
let b = Buffer.create 0 in
(try
UTF8.validate s;
UTF8.iter (fun c -> escape (UChar.code c) b) s
with
UTF8.Malformed_code ->
String.iter (fun c -> escape (Char.code c) b) s
);
Buffer.contents b
in
let has_semicolon e =
match e.eexpr with
| TBlock _ | TFor _ | TSwitch _ | TMatch _ | TTry _ | TIf _ -> false
| TWhile (_,_,flag) when flag = Ast.NormalWhile -> false
| _ -> true
in
let in_value = ref false in
let rec md_s md =
let md = follow_module (gen.gfollow#run_f) md in
match md with
| TClassDecl ({ cl_types = [] } as cl) ->
t_s (TInst(cl,[]))
| TClassDecl (cl) when not (is_hxgen md) ->
t_s (TInst(cl,List.map (fun t -> t_dynamic) cl.cl_types))
| TEnumDecl ({ e_types = [] } as e) ->
t_s (TEnum(e,[]))
| TEnumDecl (e) when not (is_hxgen md) ->
t_s (TEnum(e,List.map (fun t -> t_dynamic) e.e_types))
| TClassDecl cl ->
t_s (TInst(cl,[]))
| TEnumDecl e ->
t_s (TEnum(e,[]))
| TTypeDecl t ->
t_s (TType(t, List.map (fun t -> t_dynamic) t.t_types))
| TAbstractDecl a ->
t_s (TAbstract(a, List.map(fun t -> t_dynamic) a.a_types))
in
let rec ensure_local e explain =
match e.eexpr with
| TLocal _ -> e
| TCast(e,_)
| TParenthesis e -> ensure_local e explain
| _ -> gen.gcon.error ("This function argument " ^ explain ^ " must be a local variable.") e.epos; e
in
let is_pointer t = match follow t with
| TInst({ cl_path = (["cs"], "Pointer") }, _)
| TAbstract ({ a_path = (["cs"], "Pointer") },_) ->
true
| _ ->
false in
let expr_s w e =
in_value := false;
let rec expr_s w e =
let was_in_value = !in_value in
in_value := true;
(match e.eexpr with
| TConst c ->
(match c with
| TInt i32 ->
write w (Int32.to_string i32);
(*match real_type e.etype with
| TType( { t_path = (["haxe";"_Int64"], "NativeInt64") }, [] ) -> write w "L";
| _ -> ()
*)
| TFloat s ->
write w s;
(if String.get s (String.length s - 1) = '.' then write w "0");
(*match real_type e.etype with
| TType( { t_path = ([], "Single") }, [] ) -> write w "f"
| _ -> ()
*)
| TString s ->
write w "\"";
write w (escape s);
write w "\""
| TBool b -> write w (if b then "true" else "false")
| TNull ->
write w "default(";
write w (t_s e.etype);
write w ")"
| TThis -> write w "this"
| TSuper -> write w "base")
| TLocal { v_name = "__sbreak__" } -> write w "break"
| TLocal { v_name = "__undefined__" } ->
write w (t_s (TInst(runtime_cl, List.map (fun _ -> t_dynamic) runtime_cl.cl_types)));
write w ".undefined";
| TLocal { v_name = "__typeof__" } -> write w "typeof"
| TLocal { v_name = "__sizeof__" } -> write w "sizeof"
| TLocal var ->
write_id w var.v_name
| TEnumField (e, s) ->
print w "%s." (path_s e.e_path); write_field w s
| TArray (e1, e2) ->
expr_s w e1; write w "["; expr_s w e2; write w "]"
| TBinop ((Ast.OpAssign as op), e1, e2)
| TBinop ((Ast.OpAssignOp _ as op), e1, e2) ->
expr_s w e1; write w ( " " ^ (Ast.s_binop op) ^ " " ); expr_s w e2
| TBinop (op, e1, e2) ->
write w "( ";
expr_s w e1; write w ( " " ^ (Ast.s_binop op) ^ " " ); expr_s w e2;
write w " )"
| TField ({ eexpr = TTypeExpr mt }, s) | TClosure ({ eexpr = TTypeExpr mt }, s) ->
(match mt with
| TClassDecl { cl_path = (["haxe"], "Int64") } -> write w (path_s (["haxe"], "Int64"))
| TClassDecl { cl_path = (["haxe"], "Int32") } -> write w (path_s (["haxe"], "Int32"))
| TClassDecl cl -> write w (t_s (TInst(cl, List.map (fun _ -> t_empty) cl.cl_types)))
| TEnumDecl en -> write w (t_s (TEnum(en, List.map (fun _ -> t_empty) en.e_types)))
| TTypeDecl td -> write w (t_s (gen.gfollow#run_f (TType(td, List.map (fun _ -> t_empty) td.t_types))))
| TAbstractDecl a -> write w (t_s (TAbstract(a, List.map (fun _ -> t_empty) a.a_types)))
);
write w ".";
write_field w s
| TField (e, s) | TClosure (e, s) ->
expr_s w e; write w "."; write_field w s
| TTypeExpr mt ->
(match mt with
| TClassDecl { cl_path = (["haxe"], "Int64") } -> write w (path_s (["haxe"], "Int64"))
| TClassDecl { cl_path = (["haxe"], "Int32") } -> write w (path_s (["haxe"], "Int32"))
| TClassDecl cl -> write w (t_s (TInst(cl, List.map (fun _ -> t_dynamic) cl.cl_types)))
| TEnumDecl en -> write w (t_s (TEnum(en, List.map (fun _ -> t_dynamic) en.e_types)))
| TTypeDecl td -> write w (t_s (gen.gfollow#run_f (TType(td, List.map (fun _ -> t_dynamic) td.t_types))))
| TAbstractDecl a -> write w (t_s (TAbstract(a, List.map (fun _ -> t_dynamic) a.a_types)))
)
| TParenthesis e ->
write w "("; expr_s w e; write w ")"
| TArrayDecl el ->
print w "new %s" (t_s e.etype);
write w "{";
ignore (List.fold_left (fun acc e ->
(if acc <> 0 then write w ", ");
expr_s w e;
acc + 1
) 0 el);
write w "}"
| TCall ({ eexpr = TLocal( { v_name = "__is__" } ) }, [ expr; { eexpr = TTypeExpr(md) } ] ) ->
write w "( ";
expr_s w expr;
write w " is ";
write w (md_s md);
write w " )"
| TCall ({ eexpr = TLocal( { v_name = "__as__" } ) }, [ expr; { eexpr = TTypeExpr(md) } ] ) ->
write w "( ";
expr_s w expr;
write w " as ";
write w (md_s md);
write w " )"
| TCall ({ eexpr = TLocal( { v_name = "__cs__" } ) }, [ { eexpr = TConst(TString(s)) } ] ) ->
write w s
| TCall ({ eexpr = TLocal( { v_name = "__unsafe__" } ) }, [ e ] ) ->
write w "unsafe";
expr_s w (mk_block e)
| TCall ({ eexpr = TLocal( { v_name = "__checked__" } ) }, [ e ] ) ->
write w "checked";
expr_s w (mk_block e)
| TCall ({ eexpr = TLocal( { v_name = "__lock__" } ) }, [ eobj; eblock ] ) ->
write w "lock(";
expr_s w eobj;
write w ")";
expr_s w (mk_block eblock)
| TCall ({ eexpr = TLocal( { v_name = "__fixed__" } ) }, [ e ] ) ->
let first = ref true in
let rec loop = function
| ({ eexpr = TVars([v, Some({ eexpr = TCast( { eexpr = TCast(e, _) }, _) }) ]) } as expr) :: tl when is_pointer v.v_type ->
(if !first then first := false);
write w "fixed(";
let vf = mk_temp gen "fixed" v.v_type in
expr_s w { expr with eexpr = TVars([vf, Some e]) };
write w ")";
begin_block w;
expr_s w { expr with eexpr = TVars([v, Some (mk_local vf expr.epos)]) };
write w ";";
loop tl;
end_block w
| el when not !first ->
expr_s w { e with eexpr = TBlock el }
| _ ->
trace (debug_expr e);
gen.gcon.error "Invalid 'fixed' keyword format" e.epos
in
(match e.eexpr with
| TBlock bl -> loop bl
| _ ->
trace "not block";
trace (debug_expr e);
gen.gcon.error "Invalid 'fixed' keyword format" e.epos
)
| TCall ({ eexpr = TLocal( { v_name = "__addressOf__" } ) }, [ e ] ) ->
let e = ensure_local e "for addressOf" in
write w "&";
expr_s w e
| TCall ({ eexpr = TLocal( { v_name = "__valueOf__" } ) }, [ e ] ) ->
write w "*(";
expr_s w e;
write w ")"
| TCall ({ eexpr = TLocal( { v_name = "__goto__" } ) }, [ { eexpr = TConst(TInt v) } ] ) ->
print w "goto label%ld" v
| TCall ({ eexpr = TLocal( { v_name = "__label__" } ) }, [ { eexpr = TConst(TInt v) } ] ) ->
print w "label%ld: {}" v
| TCall ({ eexpr = TLocal( { v_name = "__rethrow__" } ) }, _) ->
write w "throw"
| TCall (e, el) ->
let rec extract_tparams params el =
match el with
| ({ eexpr = TLocal({ v_name = "$type_param" }) } as tp) :: tl ->
extract_tparams (tp.etype :: params) tl
| _ -> (params, el)
in
let params, el = extract_tparams [] el in
let params = List.rev params in
expr_s w e;
(match params with
| [] -> ()
| params ->
let md = match e.eexpr with
| TField(ef, _) -> t_to_md (run_follow gen ef.etype)
| _ -> assert false
in