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gencs.ml
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gencs.ml
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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 Gencommon.ReflectionCFs
open Ast
open Common
open Type
open Gencommon
open Gencommon.SourceWriter
open Printf
open Option
open ExtString
let netname_to_hx name =
let len = String.length name in
let chr = String.get name 0 in
String.make 1 (Char.uppercase chr) ^ (String.sub name 1 (len-1))
let rec is_cs_basic_type t =
match follow t with
| TInst( { cl_path = (["haxe"], "Int32") }, [] )
| TInst( { cl_path = (["haxe"], "Int64") }, [] )
| TAbstract ({ a_path = (["cs"], "Int64") },[])
| TAbstract ({ a_path = (["cs"], "UInt64") },[])
| TAbstract ({ a_path = ([], "Int") },[])
| TAbstract ({ a_path = ([], "Float") },[])
| TAbstract ({ a_path = ([], "Bool") },[]) ->
true
| TAbstract ({ a_path = (["cs"], "Pointer") },_) ->
false
| TAbstract _ when like_float t ->
true
| TAbstract(a,pl) when not (Meta.has Meta.CoreType a.a_meta) ->
is_cs_basic_type (Abstract.get_underlying_type a pl)
| TEnum(e, _) when not (Meta.has Meta.Class e.e_meta) -> true
| TInst(cl, _) when Meta.has Meta.Struct cl.cl_meta -> true
| _ -> false
(* see http://msdn.microsoft.com/en-us/library/2sk3x8a7(v=vs.71).aspx *)
let cs_binops =
[Ast.OpAdd, "op_Addition";
Ast.OpSub, "op_Subtraction";
Ast.OpMult, "op_Multiply";
Ast.OpDiv, "op_Division";
Ast.OpMod, "op_Modulus";
Ast.OpXor, "op_ExclusiveOr";
Ast.OpOr, "op_BitwiseOr";
Ast.OpAnd, "op_BitwiseAnd";
Ast.OpBoolAnd, "op_LogicalAnd";
Ast.OpBoolOr, "op_LogicalOr";
Ast.OpAssign, "op_Assign";
Ast.OpShl, "op_LeftShift";
Ast.OpShr, "op_RightShift";
Ast.OpShr, "op_SignedRightShift";
Ast.OpUShr, "op_UnsignedRightShift";
Ast.OpEq, "op_Equality";
Ast.OpGt, "op_GreaterThan";
Ast.OpLt, "op_LessThan";
Ast.OpNotEq, "op_Inequality";
Ast.OpGte, "op_GreaterThanOrEqual";
Ast.OpLte, "op_LessThanOrEqual";
Ast.OpAssignOp Ast.OpMult, "op_MultiplicationAssignment";
Ast.OpAssignOp Ast.OpSub, "op_SubtractionAssignment";
Ast.OpAssignOp Ast.OpXor, "op_ExclusiveOrAssignment";
Ast.OpAssignOp Ast.OpShl, "op_LeftShiftAssignment";
Ast.OpAssignOp Ast.OpMod, "op_ModulusAssignment";
Ast.OpAssignOp Ast.OpAdd, "op_AdditionAssignment";
Ast.OpAssignOp Ast.OpAnd, "op_BitwiseAndAssignment";
Ast.OpAssignOp Ast.OpOr, "op_BitwiseOrAssignment";
(* op_Comma *)
Ast.OpAssignOp Ast.OpDiv, "op_DivisionAssignment";]
let cs_unops =
[Ast.Decrement, "op_Decrement";
Ast.Increment, "op_Increment";
Ast.Neg, "op_UnaryNegation";
Ast.Not, "op_LogicalNot";
Ast.NegBits, "op_OnesComplement"]
let binops_names = List.fold_left (fun acc (op,n) -> PMap.add n op acc) PMap.empty cs_binops
let unops_names = List.fold_left (fun acc (op,n) -> PMap.add n op acc) PMap.empty cs_unops
let get_item = "get_Item"
let set_item = "set_Item"
let is_tparam t =
match follow t with
| TInst( { cl_kind = KTypeParameter _ }, [] ) -> true
| _ -> false
let rec is_int_float gen t =
match follow (gen.greal_type t) with
| TInst( { cl_path = (["haxe"], "Int32") }, [] )
| TAbstract ({ a_path = ([], "Int") },[])
| TAbstract ({ a_path = ([], "Float") },[]) ->
true
| TAbstract _ when like_float t && not (like_i64 t) ->
true
| TInst( { cl_path = (["haxe"; "lang"], "Null") }, [t] ) -> is_int_float gen t
| _ -> false
let is_bool t =
match follow t with
| TAbstract ({ a_path = ([], "Bool") },[]) ->
true
| _ -> false
let is_exactly_bool gen t =
match gen.gfollow#run_f t with
| TAbstract ({ a_path = ([], "Bool") },[]) ->
true
| _ -> false
let is_dynamic gen t =
match follow (gen.greal_type t) with
| TDynamic _ -> true
| _ -> false
let is_pointer gen t =
match follow (gen.greal_type t) with
| TAbstract( ( {a_path = ["cs"], "Pointer"}, _ ) )
| TInst( {cl_path = ["cs"], "Pointer"}, _ ) -> true
| _ -> 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_params tl t.t_type)
| TMono r ->
(match !r with
| Some t -> is_null t
| _ -> false)
| TLazy f ->
is_null (!f())
| _ -> false
let rec get_ptr e = match e.eexpr with
| TParenthesis e | TMeta(_,e)
| TCast(e,_) -> get_ptr e
| TCall( { eexpr = TLocal({ v_name = "__ptr__" }) }, [ e ] ) ->
Some e
| _ -> None
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
let rec change_md = function
| TAbstractDecl(a) when Meta.has Meta.Delegate a.a_meta && not (Meta.has Meta.CoreType a.a_meta) ->
change_md (t_to_md a.a_this)
| TClassDecl( { cl_kind = KAbstractImpl ({ a_this = TInst(impl,_) } as a) }) when Meta.has Meta.Delegate a.a_meta ->
TClassDecl impl
| md -> md
(* ******************************************* *)
(* 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 get_ab_from_t t =
match follow t with
| TAbstract(ab,_) -> ab
| _ -> 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 name () = match gen.gcurrent_class with
| Some cl -> path_s cl.cl_path
| _ -> ""
in
let rec run e =
match e.eexpr with
(* Std.is() *)
| TCall(
{ eexpr = TField( _, FStatic({ cl_path = ([], "Std") }, { cf_name = "is" })) },
[ obj; { eexpr = TTypeExpr(TClassDecl { cl_path = [], "Dynamic" } | TAbstractDecl { a_path = [], "Dynamic" }) }]
) ->
Type.map_expr run e
| TCall(
{ eexpr = TField( _, FStatic({ cl_path = ([], "Std") }, { cf_name = "is"}) ) },
[ obj; { eexpr = TTypeExpr(md) }]
) ->
let md = change_md md in
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 mk_or a b =
{
eexpr = TBinop(Ast.OpBoolOr, a, b);
etype = basic.tbool;
epos = e.epos
}
in
let wrap_if_needed obj f =
(* introduce temp variable for complex expressions *)
match obj.eexpr with
| TLocal(v) -> f obj
| _ ->
let var = mk_temp gen "is" obj.etype in
let added = { obj with eexpr = TVar(var, Some(obj)); etype = basic.tvoid } in
let local = mk_local var obj.epos in
{
eexpr = TBlock([ added; f local ]);
etype = basic.tbool;
epos = e.epos
}
in
let obj = run obj in
(match follow_module follow md with
| TAbstractDecl{ a_path = ([], "Float") } when name() <> "haxe.lang.Runtime" ->
(* 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 =
(* we check if it float or int or uint *)
let eisint = mk_is local (TAbstractDecl (get_ab_from_t basic.tint)) in
let eisuint = mk_is local (TAbstractDecl (get_ab_from_t uint)) in
let eisfloat = mk_is local md in
mk_paren (mk_or eisfloat (mk_or eisint eisuint))
in
wrap_if_needed obj mk_is
| TAbstractDecl{ a_path = ([], "Int") } when name() <> "haxe.lang.Runtime" ->
(* int can be stored in double variable because of anonymous functions, check that case *)
let mk_isint_call local =
{
eexpr = TCall(
mk_static_field_access_infer runtime_cl "isInt" e.epos [],
[ local ]
);
etype = basic.tbool;
epos = e.epos
}
in
let mk_is local =
let eisint = mk_is local (TAbstractDecl (get_ab_from_t basic.tint)) in
let eisuint = mk_is local (TAbstractDecl (get_ab_from_t uint)) in
mk_paren (mk_or (mk_or eisint eisuint) (mk_isint_call local))
in
wrap_if_needed obj mk_is
| TAbstractDecl{ a_path = ([], "UInt") } when name() <> "haxe.lang.Runtime" ->
(* uint can be stored in double variable because of anonymous functions, check that case *)
let mk_isuint_call local =
{
eexpr = TCall(
mk_static_field_access_infer runtime_cl "isUInt" e.epos [],
[ local ]
);
etype = basic.tbool;
epos = e.epos
}
in
let mk_is local =
let eisuint = mk_is local (TAbstractDecl (get_ab_from_t uint)) in
mk_paren (mk_or eisuint (mk_isuint_call local))
in
wrap_if_needed obj mk_is
| _ ->
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 = TVar(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; 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 -> TType(t,[])
| TAbstractDecl a -> TAbstract(a,[])
| _ -> assert false
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 ti64 = match ( get_type gen (["cs"], "Int64") ) with | TTypeDecl t -> TType(t,[]) | TAbstractDecl a -> TAbstract(a,[]) | _ -> assert false in
let boxed_ptr =
if Common.defined gen.gcon Define.Unsafe then
get_cl (get_type gen (["haxe";"lang"], "BoxedPointer"))
(* get_abstract (get_type gen (["cs"],"Pointer")) *)
else
null_class
in
let is_struct t = (* not basic type *)
match follow t with
| TInst(cl, _) when Meta.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 name () = match gen.gcurrent_class with
| Some cl -> path_s cl.cl_path
| _ -> ""
in
let rec run e =
match e.eexpr with
(* Std.int() *)
| TCall(
{ eexpr = TField( _, FStatic({ cl_path = ([], "Std") }, { cf_name = "int" }) ) },
[obj]
) ->
run (mk_cast basic.tint obj)
(* end Std.int() *)
(* TODO: change cf_name *)
| TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = "length" })) ->
{ e with eexpr = TField(run ef, FDynamic "Length") }
| TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = "toLowerCase" })) ->
{ e with eexpr = TField(run ef, FDynamic "ToLowerInvariant") }
| TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = "toUpperCase" })) ->
{ e with eexpr = TField(run ef, FDynamic "ToUpperInvariant") }
| TCall( { eexpr = TField(_, FStatic({ cl_path = [], "String" }, { cf_name = "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(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("charAt" as field) })) }, args )
| TCall( { eexpr = TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("charCodeAt" as field) })) }, args )
| TCall( { eexpr = TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("indexOf" as field) })) }, args )
| TCall( { eexpr = TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("lastIndexOf" as field) })) }, args )
| TCall( { eexpr = TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("split" as field) })) }, args )
| TCall( { eexpr = TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("substring" as field) })) }, args )
| TCall( { eexpr = TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("substr" as field) })) }, args ) ->
{ e with eexpr = TCall(mk_static_field_access_infer string_ext field e.epos [], [run ef] @ (List.map run args)) }
| TCall( { eexpr = TField(ef, FInstance({ cl_path = [], "String" }, _, { cf_name = ("toString") })) }, [] ) ->
run ef
| TNew( { cl_path = ([], "String") }, [], [p] ) -> run p (* new String(myString) -> myString *)
| TCast(expr, _) when like_float expr.etype && is_pointer gen e.etype ->
let expr = run expr in
mk_cast e.etype (mk_cast ti64 expr)
| TCast(expr, _) when is_dynamic gen expr.etype && is_pointer gen e.etype ->
(match get_ptr expr with
| None ->
(* unboxing *)
let expr = run expr in
mk_cast e.etype (mk_field_access gen (mk_cast (TInst(boxed_ptr,[])) expr) "value" e.epos)
| Some e ->
run e)
| TCast(expr, _) when is_pointer gen expr.etype && is_dynamic gen e.etype ->
(match get_ptr expr with
| None ->
(* boxing *)
let expr = run expr in
{ e with eexpr = TNew(boxed_ptr,[],[expr]) }
| Some e ->
run e)
| TCast(expr, _) when is_bool e.etype && not (is_exactly_bool gen expr.etype) ->
{
eexpr = TCall(
mk_static_field_access_infer runtime_cl "toBool" expr.epos [],
[ run expr ]
);
etype = basic.tbool;
epos = e.epos
}
| TCast(expr, _) when is_int_float gen e.etype && not (is_cs_basic_type (gen.greal_type expr.etype)) && ( Common.defined gen.gcon Define.EraseGenerics || not (is_null e.etype) ) && name() <> "haxe.lang.Runtime" ->
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) && (not (is_string expr.etype)) && name() <> "haxe.lang.Runtime" ->
{ 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, FDynamic "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 && name() <> "haxe.lang.Runtime" && not (Common.defined gen.gcon Define.EraseGenerics) ->
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, FDynamic "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 && name() <> "haxe.lang.Runtime" ->
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;;
let add_cast_handler gen =
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 = mk_field_access gen e "Length" e.epos in
let obj_v = mk_temp gen "obj" t_dynamic in
let check_null = {eexpr = TBinop(Ast.OpNotEq, e, null e.etype e.epos); etype = basic.tbool; epos = e.epos} in
let block = [
{
eexpr = TVar(
new_v, Some( {
eexpr = TNew(native_arr_cl, [new_param], [old_len] );
etype = to_t;
epos = e.epos
} )
);
etype = basic.tvoid;
epos = e.epos
};
{
eexpr = TVar(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 = TVar(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 = TIf(
check_null,
{
eexpr = TBlock(block);
etype = to_t;
epos = e.epos;
},
Some(null new_v.v_type e.epos)
);
etype = to_t;
epos = e.epos;
}
in
Hashtbl.add gen.gtparam_cast (["cs"], "NativeArray") gtparam_cast_native_array
(* end set gtparam_cast *)
(* Type Parameters Handling *)
let handle_type_params gen ifaces base_generic =
add_cast_handler gen;
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
| (Meta.Struct,[],_) :: meta -> get_class_modifiers meta "struct" cl_access cl_modifiers
| (Meta.Protected,[],_) :: meta -> get_class_modifiers meta cl_type "protected" cl_modifiers
| (Meta.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 *)
| (Meta.Final,[],_) :: meta -> get_class_modifiers meta cl_type cl_access ("sealed" :: cl_modifiers)
| (Meta.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
| (Meta.Protected,[],_) :: meta -> get_fun_modifiers meta "protected" modifiers
| (Meta.Internal,[],_) :: meta -> get_fun_modifiers meta "internal" modifiers
| (Meta.ReadOnly,[],_) :: meta -> get_fun_modifiers meta access ("readonly" :: modifiers)
| (Meta.Unsafe,[],_) :: meta -> get_fun_modifiers meta access ("unsafe" :: modifiers)
| (Meta.Volatile,[],_) :: meta -> get_fun_modifiers meta access ("volatile" :: modifiers)
| (Meta.Custom ("?prop_impl" | "?event_impl"),[],_) :: meta -> get_fun_modifiers meta "private" 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 native_arr_cl = get_cl ( get_type gen (["cs"], "NativeArray") ) in
gen.gclasses.nativearray <- (fun t -> TInst(native_arr_cl,[t]));
gen.gclasses.nativearray_type <- (function TInst(_,[t]) -> t | _ -> assert false);
gen.gclasses.nativearray_len <- (fun e p -> mk_field_access gen e "Length" p);
let basic = gen.gcon.basic in
let erase_generics = Common.defined gen.gcon Define.EraseGenerics in
let fn_cl = get_cl (get_type gen (["haxe";"lang"],"Function")) in
let null_t = if erase_generics then null_class else (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_id name = try
Hashtbl.find reserved name
with | Not_found ->
let ret = String.concat "." (String.nsplit name "#") in
List.hd (String.nsplit ret "`")
in
let change_clname n = change_id n in
let change_ns_params_root md ns params =
let ns,params = List.fold_left (fun (ns,params) nspart -> try
let part, nparams = String.split nspart "`" in
let nparams = int_of_string nparams in
let rec loop i needed params =
if i = nparams then
(List.rev needed,params)
else
loop (i+1) (List.hd params :: needed) (List.tl params)
in
let needed,params = loop 0 [] params in
let part = change_id part in
(part ^ "<" ^ (String.concat ", " needed) ^ ">")::ns, params
with _ -> (* Invalid_string / int_of_string *)
(change_id nspart)::ns, params
) ([],params) ns
in
List.rev ns,params
in
let change_ns_params md params ns = if no_root then match ns with
| [] when is_hxgen md -> ["haxe";"root"], params
| [] -> (match md with
| TClassDecl { cl_path = ([],"Std" | [],"Math") } -> ["haxe";"root"], params
| TClassDecl { cl_meta = m } when Meta.has Meta.Enum m -> ["haxe";"root"], params
| _ -> [], params)
| ns when params = [] -> List.map change_id ns, params
| ns ->
change_ns_params_root md ns params
else if params = [] then
List.map change_id ns, params
else
change_ns_params_root md ns params
in
let change_ns md ns =
let ns, _ = change_ns_params md [] ns in
ns
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
let ptr =
if Common.defined gen.gcon Define.Unsafe then
get_abstract (get_type gen (["cs"],"Pointer"))
else
null_abstract
in
let is_hxgeneric md =
TypeParams.RealTypeParams.is_hxgeneric md
in
let rec field_is_hxgeneric e = match e.eexpr with
| TParenthesis e | TMeta(_,e) -> field_is_hxgeneric e
| TField(_, (FStatic(cl,_) | FInstance(cl,_,_)) ) ->
(* print_endline ("is_hxgeneric " ^ path_s cl.cl_path ^ " : " ^ string_of_bool (is_hxgeneric (TClassDecl cl))); *)
is_hxgeneric (TClassDecl cl)
| _ -> true
in
gen.gfollow#add ~name:"follow_basic" (fun t -> match t with
| TAbstract ({ a_path = ([], "Bool") },[])
| TAbstract ({ a_path = ([], "Void") },[])
| TAbstract ({ a_path = ([],"Float") },[])
| TAbstract ({ a_path = ([],"Int") },[])
| TAbstract ({ a_path = [],"UInt" },[])
| TType ({ t_path = ["cs"], "Int64" },[])
| TAbstract ({ a_path = ["cs"], "Int64" },[])
| 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
| TType (({ t_path = [],"Null" } as tdef),[t2]) ->
Some (TType(tdef,[follow (gen.gfollow#run_f t2)]))
| TAbstract({ a_path = ["cs"],"PointerAccess" },[t]) ->
Some (TAbstract(ptr,[t]))
| TAbstract (a, pl) when not (Meta.has Meta.CoreType a.a_meta) ->
Some (gen.gfollow#run_f ( Abstract.get_underlying_type a pl) )
| TAbstract( { a_path = ([], "EnumValue") }, _ )
| TInst( { cl_path = ([], "EnumValue") }, _ ) -> Some t_dynamic
| _ -> None);
let module_s_params md params =
let md = change_md md in
let path = (t_infos md).mt_path in
match path with
| ([], "String") -> "string", params
| ([], "Null") -> path_s (change_ns md ["haxe"; "lang"], change_clname "Null"), params
| (ns,clname) ->
let ns, params = change_ns_params md params ns in
path_s (ns, change_clname clname), params
in
let module_s md =
fst (module_s_params md [])
in
let ifaces = Hashtbl.create 1 in
let ti64 = match ( get_type gen (["cs"], "Int64") ) with | TTypeDecl t -> TType(t,[]) | TAbstractDecl a -> TAbstract(a,[]) | _ -> assert false in
let ttype = get_cl ( get_type gen (["System"], "Type") ) in
let has_tdyn tl =
List.exists (fun t -> match follow t with
| TDynamic _ | TMono _ -> true
| _ -> false
) tl
in
let rec real_type t =
let t = gen.gfollow#run_f t in
let ret = match t with
| TAbstract (a, pl) when not (Meta.has Meta.CoreType a.a_meta) ->
real_type (Abstract.get_underlying_type a pl)
| TAbstract ({ a_path = (["cs";"_Flags"], "EnumUnderlying") }, [t]) ->
real_type t
| TInst( { cl_path = (["cs";"system"], "String") }, [] ) ->
gen.gcon.basic.tstring;
| TInst( { cl_path = (["haxe"], "Int32") }, [] ) -> gen.gcon.basic.tint
| TInst( { cl_path = (["haxe"], "Int64") }, [] ) -> ti64
| TAbstract( { a_path = [],"Class" }, _ )
| TAbstract( { a_path = [],"Enum" }, _ )
| TAbstract( { a_path = ["haxe";"extern"],"Rest" }, _ )
| TInst( { cl_path = ([], "Class") }, _ )
| TInst( { cl_path = ([], "Enum") }, _ ) -> TInst(ttype,[])
| TInst( ({ cl_kind = KTypeParameter _ } as cl), _ ) when erase_generics && not (Meta.has Meta.NativeGeneric cl.cl_meta) ->
t_dynamic
| TEnum(_, [])
| TInst(_, []) -> t
| TInst(cl, params) when
has_tdyn params &&
Hashtbl.mem ifaces cl.cl_path ->
TInst(Hashtbl.find ifaces cl.cl_path, [])
| TEnum(e, params) ->
TEnum(e, List.map (fun _ -> t_dynamic) params)
| TInst(cl, params) when Meta.has Meta.Enum cl.cl_meta ->
TInst(cl, List.map (fun _ -> t_dynamic) params)
| TInst(cl, params) -> TInst(cl, change_param_type (TClassDecl cl) 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<>
*)
if erase_generics then
if is_cs_basic_type t then
t_dynamic
else
real_type t
else
(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 _ | AbstractStatics _ -> 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 types = match md with
| TClassDecl c -> c.cl_params
| TEnumDecl e -> []
| TAbstractDecl a -> a.a_params
| TTypeDecl t -> t.t_params
in
let is_hxgeneric = if types = [] then is_hxgen md else (TypeParams.RealTypeParams.is_hxgeneric md) in
let ret t =
let t_changed = real_type t in
match is_hxgeneric, t_changed 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_changed -> t
| true, TDynamic _ -> t
| true, x ->
dynamic_anon
in
if is_hxgeneric && (erase_generics || 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 _
| TInst({ cl_kind = KTypeParameter _ }, _) -> 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 *)
| TAbstract ({ a_path = ([], "Bool") },[]) -> "bool"
| TAbstract ({ a_path = ([], "Void") },[]) -> "object"
| TAbstract ({ a_path = ([],"Float") },[]) -> "double"
| TAbstract ({ a_path = ([],"Int") },[]) -> "int"
| TAbstract ({ a_path = [],"UInt" },[]) -> "uint"
| TType ({ t_path = ["cs"], "Int64" },[])
| TAbstract ({ a_path = ["cs"], "Int64" },[]) -> "long"
| 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"