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asn1ct_check.erl
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asn1ct_check.erl
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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
%%
-module(asn1ct_check).
%% Main Module for ASN.1 compile time functions
%-compile(export_all).
-export([check/2,storeindb/2]).
%-define(debug,1).
-include("asn1_records.hrl").
%%% The tag-number for universal types
-define(N_BOOLEAN, 1).
-define(N_INTEGER, 2).
-define(N_BIT_STRING, 3).
-define(N_OCTET_STRING, 4).
-define(N_NULL, 5).
-define(N_OBJECT_IDENTIFIER, 6).
-define(N_OBJECT_DESCRIPTOR, 7).
-define(N_EXTERNAL, 8). % constructed
-define(N_INSTANCE_OF,8).
-define(N_REAL, 9).
-define(N_ENUMERATED, 10).
-define(N_EMBEDDED_PDV, 11). % constructed
-define(N_UTF8String, 12).
-define('N_RELATIVE-OID',13).
-define(N_SEQUENCE, 16).
-define(N_SET, 17).
-define(N_NumericString, 18).
-define(N_PrintableString, 19).
-define(N_TeletexString, 20).
-define(N_VideotexString, 21).
-define(N_IA5String, 22).
-define(N_UTCTime, 23).
-define(N_GeneralizedTime, 24).
-define(N_GraphicString, 25).
-define(N_VisibleString, 26).
-define(N_GeneralString, 27).
-define(N_UniversalString, 28).
-define(N_CHARACTER_STRING, 29). % constructed
-define(N_BMPString, 30).
-define(TAG_PRIMITIVE(Num),
case S#state.erule of
ber_bin_v2 ->
#tag{class='UNIVERSAL',number=Num,type='IMPLICIT',form=0};
_ -> []
end).
-define(TAG_CONSTRUCTED(Num),
case S#state.erule of
ber_bin_v2 ->
#tag{class='UNIVERSAL',number=Num,type='IMPLICIT',form=32};
_ -> []
end).
-record(newt,{type=unchanged,tag=unchanged,constraint=unchanged,inlined=no}). % used in check_type to update type and tag
-record(newv,{type=unchanged,value=unchanged}). % used in check_value to update type and value
check(S,{Types,Values,ParameterizedTypes,Classes,Objects,ObjectSets}) ->
%%Predicates used to filter errors
TupleIs = fun({T,_},T) -> true;
(_,_) -> false
end,
IsClass = fun(X) -> TupleIs(X,asn1_class) end,
IsObjSet = fun(X) -> TupleIs(X,objectsetdef) end,
IsPObjSet = fun(X) -> TupleIs(X,pobjectsetdef) end,
IsObject = fun(X) -> TupleIs(X,objectdef) end,
IsValueSet = fun(X) -> TupleIs(X,valueset) end,
Element2 = fun(X) -> element(2,X) end,
Element1 = fun(X) -> element(1,X) end,
%% initialize internal book keeping
save_asn1db_uptodate(S,S#state.erule,S#state.mname),
put(top_module,S#state.mname),
_Perror = checkp(S,ParameterizedTypes,[]), % must do this before the templates are used
%% table to save instances of parameterized objects,object sets
asn1ct:create_ets_table(parameterized_objects,[named_table]),
asn1ct:create_ets_table(inlined_objects,[named_table]),
Terror = checkt(S,Types,[]),
?dbg("checkt finished with errors:~n~p~n~n",[Terror]),
%% get parameterized object sets sent to checkt/3
%% and update Terror
{PObjSetNames1,Terror2} = filter_errors(IsPObjSet,Terror),
Verror = checkv(S,Values ++ ObjectSets,[]), %value sets may be parsed as object sets
?dbg("checkv finished with errors:~n~p~n~n",[Verror]),
%% get information object classes wrongly sent to checkt/3
%% and update Terror2
{AddClasses,Terror3} = filter_errors(IsClass,Terror2),
NewClasses = Classes++AddClasses,
Cerror = checkc(S,NewClasses,[]),
?dbg("checkc finished with errors:~n~p~n~n",[Cerror]),
%% get object sets incorrectly sent to checkv/3
%% and update Verror
{ObjSetNames,Verror2} = filter_errors(IsObjSet,Verror),
%% get parameterized object sets incorrectly sent to checkv/3
%% and update Verror2
{PObjSetNames,Verror3} = filter_errors(IsPObjSet,Verror2),
%% get objects incorrectly sent to checkv/3
%% and update Verror3
{ObjectNames,Verror4} = filter_errors(IsObject,Verror3),
NewObjects = Objects++ObjectNames,
NewObjectSets = ObjSetNames ++ PObjSetNames ++ PObjSetNames1,
%% get value sets
%% and update Verror4
{ValueSetNames,Verror5} = filter_errors(IsValueSet,Verror4),
{Oerror,ExclO,ExclOS} = checko(S,NewObjects ++
NewObjectSets,
[],[],[]),
?dbg("checko finished with errors:~n~p~n~n",[Oerror]),
InlinedObjTuples = ets:tab2list(inlined_objects),
InlinedObjects = lists:map(Element2,InlinedObjTuples),
ets:delete(inlined_objects),
ParameterizedElems = ets:tab2list(parameterized_objects),
ParObjectSets = lists:filter(fun({_OSName,objectset,_}) -> true;
(_)-> false end,ParameterizedElems),
ParObjectSetNames = lists:map(Element1,ParObjectSets),
ParTypes = lists:filter(fun({_TypeName,type,_}) -> true;
(_) -> false end, ParameterizedElems),
ParTypesNames = lists:map(Element1,ParTypes),
ets:delete(parameterized_objects),
put(asn1_reference,undefined),
Exporterror = check_exports(S,S#state.module),
ImportError = check_imports(S,S#state.module),
case {Terror3,Verror5,Cerror,Oerror,Exporterror,ImportError} of
{[],[],[],[],[],[]} ->
ContextSwitchTs = context_switch_in_spec(),
InstanceOf = instance_of_in_spec(S#state.mname),
NewTypes = lists:subtract(Types,AddClasses) ++ ContextSwitchTs
++ InstanceOf ++ ParTypesNames,
NewValues = lists:subtract(Values,PObjSetNames++ObjectNames++
ValueSetNames),
{ok,
{NewTypes,NewValues,ParameterizedTypes,
NewClasses,NewObjects,NewObjectSets},
{NewTypes,NewValues,ParameterizedTypes,NewClasses,
lists:subtract(NewObjects,ExclO)++InlinedObjects,
lists:subtract(NewObjectSets,ExclOS)++ParObjectSetNames}};
_ ->{error,{asn1,lists:flatten([Terror3,Verror5,Cerror,
Oerror,Exporterror,ImportError])}}
end.
context_switch_in_spec() ->
L = [{external,'EXTERNAL'},
{embedded_pdv,'EMBEDDED PDV'},
{character_string,'CHARACTER STRING'}],
F = fun({T,TName},Acc) ->
case get(T) of
generate -> erase(T),
[TName|Acc];
_ -> Acc
end
end,
lists:foldl(F,[],L).
instance_of_in_spec(ModName) ->
case get(instance_of) of
L when is_list(L) ->
case lists:member(ModName,L) of
true ->
erase(instance_of),
['INSTANCE OF'];
_ ->
erase(instance_of),
[]
end;
_ ->
[]
end.
instance_of_decl(ModName) ->
Mods = get_instance_of(),
case lists:member(ModName,Mods) of
true ->
ok;
_ ->
put(instance_of,[ModName|Mods])
end.
get_instance_of() ->
case get(instance_of) of
undefined ->
[];
L ->
L
end.
put_once(T,State) ->
%% state is one of undefined, unchecked, generate
%% undefined > unchecked > generate
case get(T) of
PrevS when PrevS > State ->
put(T,State);
_ ->
ok
end.
filter_errors(Pred,ErrorList) ->
Element2 = fun(X) -> element(2,X) end,
RemovedTupleElements = lists:filter(Pred,ErrorList),
RemovedNames = lists:map(Element2,RemovedTupleElements),
%% remove value set name tuples from Verror
RestErrors = lists:subtract(ErrorList,RemovedTupleElements),
{RemovedNames,RestErrors}.
check_exports(S,Module = #module{}) ->
case Module#module.exports of
{exports,[]} ->
[];
{exports,all} ->
[];
{exports,ExportList} when is_list(ExportList) ->
IsNotDefined =
fun(X) ->
case catch get_referenced_type(S,X) of
{error,{asn1,_}} ->
true;
_ -> false
end
end,
case lists:filter(IsNotDefined,ExportList) of
[] ->
[];
NoDefExp ->
GetName =
fun(T = #'Externaltypereference'{type=N})->
%%{exported,undefined,entity,N}
NewS=S#state{type=T,tname=N},
error({export,"exported undefined entity",NewS})
end,
lists:map(GetName,NoDefExp)
end
end.
check_imports(S,Module = #module{ }) ->
case Module#module.imports of
{imports,[]} ->
[];
{imports,ImportList} when is_list(ImportList) ->
check_imports2(S,ImportList,[]);
_ ->
[]
end.
check_imports2(_S,[],Acc) ->
Acc;
check_imports2(S,[#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs],Acc) ->
NameOfDef =
fun(#'Externaltypereference'{type=N}) -> N;
(#'Externalvaluereference'{value=N}) -> N
end,
Module = NameOfDef(ModuleRef),
Refs = [{M,R}||{{M,_},R} <- [{catch get_referenced_type(S,Ref),Ref}||Ref <- Imports]],
{Illegal,Other} = lists:splitwith(fun({error,_}) -> true;(_) -> false end,
Refs),
ChainedRefs = [R||{M,R} <- Other, M =/= Module],
IllegalRefs = [R||{error,R} <- Illegal] ++
[R||{M,R} <- ChainedRefs,
ok =/= chained_import(S,Module,M,NameOfDef(R))],
ReportError =
fun(Ref) ->
NewS=S#state{type=Ref,tname=NameOfDef(Ref)},
error({import,"imported undefined entity",NewS})
end,
check_imports2(S,SFMs,[ReportError(Err)||Err <- IllegalRefs]++Acc).
chained_import(S,ImpMod,DefMod,Name) ->
%% Name is a referenced structure that is not defined in ImpMod,
%% but must be present in the Imports list of ImpMod. The chain of
%% imports of Name must end in DefMod.
NameOfDef =
fun(#'Externaltypereference'{type=N}) -> N;
(#'Externalvaluereference'{value=N}) -> N;
(Other) -> Other
end,
GetImports =
fun(_M_) ->
case asn1_db:dbget(_M_,'MODULE') of
#module{imports={imports,ImportList}} ->
ImportList;
_ -> []
end
end,
FindNameInImports =
fun([],N,_) -> {no_mod,N};
([#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs],N,F) ->
case [NameOfDef(X)||X <- Imports, NameOfDef(X) =:= N] of
[] -> F(SFMs,N,F);
[N] -> {NameOfDef(ModuleRef),N}
end
end,
case GetImports(ImpMod) of
[] ->
error;
Imps ->
case FindNameInImports(Imps,Name,FindNameInImports) of
{no_mod,_} ->
error;
{DefMod,_} -> ok;
{OtherMod,_} ->
chained_import(S,OtherMod,DefMod,Name)
end
end.
checkt(S,[Name|T],Acc) ->
?dbg("Checking type ~p~n",[Name]),
Result =
case asn1_db:dbget(S#state.mname,Name) of
undefined ->
error({type,{internal_error,'???'},S});
Type when is_record(Type,typedef) ->
NewS = S#state{type=Type,tname=Name},
case catch(check_type(NewS,Type,Type#typedef.typespec)) of
{error,Reason} ->
error({type,Reason,NewS});
{'EXIT',Reason} ->
error({type,{internal_error,Reason},NewS});
{asn1_class,_ClassDef} ->
{asn1_class,Name};
pobjectsetdef ->
{pobjectsetdef,Name};
pvalueset ->
{pvalueset,Name};
Ts ->
case Type#typedef.checked of
true -> % already checked and updated
ok;
_ ->
NewTypeDef = Type#typedef{checked=true,typespec = Ts},
asn1_db:dbput(NewS#state.mname,Name,NewTypeDef), % update the type
ok
end
end
end,
case Result of
ok ->
checkt(S,T,Acc);
_ ->
checkt(S,T,[Result|Acc])
end;
checkt(S,[],Acc) ->
case check_contextswitchingtypes(S,[]) of
[] ->
lists:reverse(Acc);
L ->
checkt(S,L,Acc)
end.
check_contextswitchingtypes(S,Acc) ->
CSTList=[{external,'EXTERNAL'},
{embedded_pdv,'EMBEDDED PDV'},
{character_string,'CHARACTER STRING'}],
check_contextswitchingtypes(S,CSTList,Acc).
check_contextswitchingtypes(S,[{T,TName}|Ts],Acc) ->
case get(T) of
unchecked ->
put(T,generate),
check_contextswitchingtypes(S,Ts,[TName|Acc]);
_ ->
check_contextswitchingtypes(S,Ts,Acc)
end;
check_contextswitchingtypes(_,[],Acc) ->
Acc.
checkv(S,[Name|T],Acc) ->
?dbg("Checking valuedef ~p~n",[Name]),
Result = case asn1_db:dbget(S#state.mname,Name) of
undefined -> error({value,{internal_error,'???'},S});
Value when is_record(Value,valuedef);
is_record(Value,typedef); %Value set may be parsed as object set.
is_record(Value,pvaluedef);
is_record(Value,pvaluesetdef) ->
NewS = S#state{value=Value},
case catch(check_value(NewS,Value)) of
{error,Reason} ->
error({value,Reason,NewS});
{'EXIT',Reason} ->
error({value,{internal_error,Reason},NewS});
{pobjectsetdef} ->
{pobjectsetdef,Name};
{objectsetdef} ->
{objectsetdef,Name};
{objectdef} ->
%% this is an object, save as typedef
#valuedef{checked=C,pos=Pos,name=N,type=Type,
value=Def}=Value,
ClassName = Type#type.def,
NewSpec = #'Object'{classname=ClassName,
def=Def},
NewDef = #typedef{checked=C,pos=Pos,name=N,
typespec=NewSpec},
asn1_db:dbput(NewS#state.mname,Name,NewDef),
{objectdef,Name};
{valueset,VSet} ->
Pos = asn1ct:get_pos_of_def(Value),
CheckedVSDef = #typedef{checked=true,pos=Pos,
name=Name,typespec=VSet},
asn1_db:dbput(NewS#state.mname,Name,CheckedVSDef),
{valueset,Name};
V ->
%% update the valuedef
asn1_db:dbput(NewS#state.mname,Name,V),
ok
end
end,
case Result of
ok ->
checkv(S,T,Acc);
_ ->
checkv(S,T,[Result|Acc])
end;
checkv(_S,[],Acc) ->
lists:reverse(Acc).
checkp(S,[Name|T],Acc) ->
%io:format("check_ptypedef:~p~n",[Name]),
Result = case asn1_db:dbget(S#state.mname,Name) of
undefined ->
error({type,{internal_error,'???'},S});
Type when is_record(Type,ptypedef) ->
NewS = S#state{type=Type,tname=Name},
case catch(check_ptype(NewS,Type,Type#ptypedef.typespec)) of
{error,Reason} ->
error({type,Reason,NewS});
{'EXIT',Reason} ->
error({type,{internal_error,Reason},NewS});
{asn1_class,_ClassDef} ->
{asn1_class,Name};
{asn1_param_class,_} -> ok;
Ts ->
NewType = Type#ptypedef{checked=true,typespec = Ts},
asn1_db:dbput(NewS#state.mname,Name,NewType), % update the type
ok
end
end,
case Result of
ok ->
checkp(S,T,Acc);
_ ->
checkp(S,T,[Result|Acc])
end;
checkp(_S,[],Acc) ->
lists:reverse(Acc).
checkc(S,[Name|Cs],Acc) ->
Result =
case asn1_db:dbget(S#state.mname,Name) of
undefined ->
error({class,{internal_error,'???'},S});
Class ->
ClassSpec = if
is_record(Class,classdef) ->
% Class#classdef.typespec;
Class;
is_record(Class,typedef) ->
Class#typedef.typespec
end,
NewS = S#state{type=Class,tname=Name},
case catch(check_class(NewS,ClassSpec)) of
{error,Reason} ->
error({class,Reason,NewS});
{'EXIT',Reason} ->
error({class,{internal_error,Reason},NewS});
C ->
%% update the classdef
NewClass =
if
is_record(Class,classdef) ->
Class#classdef{checked=true,typespec=C};
is_record(Class,typedef) ->
#classdef{checked=true,name=Name,typespec=C}
end,
asn1_db:dbput(NewS#state.mname,Name,NewClass),
ok
end
end,
case Result of
ok ->
checkc(S,Cs,Acc);
_ ->
checkc(S,Cs,[Result|Acc])
end;
checkc(_S,[],Acc) ->
%% include_default_class(S#state.mname),
lists:reverse(Acc).
checko(S,[Name|Os],Acc,ExclO,ExclOS) ->
?dbg("Checking object ~p~n",[Name]),
Result =
case asn1_db:dbget(S#state.mname,Name) of
undefined ->
error({type,{internal_error,'???'},S});
Object when is_record(Object,typedef) ->
NewS = S#state{type=Object,tname=Name},
case catch(check_object(NewS,Object,Object#typedef.typespec)) of
{error,Reason} ->
error({type,Reason,NewS});
{'EXIT',Reason} ->
error({type,{internal_error,Reason},NewS});
{asn1,Reason} ->
error({type,Reason,NewS});
O ->
NewObj = Object#typedef{checked=true,typespec=O},
asn1_db:dbput(NewS#state.mname,Name,NewObj),
if
is_record(O,'Object') ->
case O#'Object'.gen of
true ->
{ok,ExclO,ExclOS};
false ->
{ok,[Name|ExclO],ExclOS}
end;
is_record(O,'ObjectSet') ->
case O#'ObjectSet'.gen of
true ->
{ok,ExclO,ExclOS};
false ->
{ok,ExclO,[Name|ExclOS]}
end
end
end;
PObject when is_record(PObject,pobjectdef) ->
NewS = S#state{type=PObject,tname=Name},
case (catch check_pobject(NewS,PObject)) of
{error,Reason} ->
error({type,Reason,NewS});
{'EXIT',Reason} ->
error({type,{internal_error,Reason},NewS});
{asn1,Reason} ->
error({type,Reason,NewS});
PO ->
NewPObj = PObject#pobjectdef{def=PO},
asn1_db:dbput(NewS#state.mname,Name,NewPObj),
{ok,[Name|ExclO],ExclOS}
end;
PObjSet when is_record(PObjSet,pvaluesetdef) ->
%% this is a parameterized object set. Might be a parameterized
%% value set, couldn't it?
NewS = S#state{type=PObjSet,tname=Name},
case (catch check_pobjectset(NewS,PObjSet)) of
{error,Reason} ->
error({type,Reason,NewS});
{'EXIT',Reason} ->
error({type,{internal_error,Reason},NewS});
{asn1,Reason} ->
error({type,Reason,NewS});
POS ->
%%NewPObjSet = PObjSet#pvaluesetdef{valueset=POS},
asn1_db:dbput(NewS#state.mname,Name,POS),
{ok,ExclO,[Name|ExclOS]}
end
end,
case Result of
{ok,NewExclO,NewExclOS} ->
checko(S,Os,Acc,NewExclO,NewExclOS);
_ ->
checko(S,Os,[Result|Acc],ExclO,ExclOS)
end;
checko(_S,[],Acc,ExclO,ExclOS) ->
{lists:reverse(Acc),lists:reverse(ExclO),lists:reverse(ExclOS)}.
check_class(S,CDef=#classdef{checked=Ch,name=Name,typespec=TS}) ->
case Ch of
true -> TS;
idle -> TS;
_ ->
store_class(S,idle,CDef,Name),
CheckedTS = check_class(S,TS),
store_class(S,true,CDef#classdef{typespec=CheckedTS},Name),
CheckedTS
end;
check_class(S = #state{mname=M,tname=T},ClassSpec)
when is_record(ClassSpec,type) ->
Def = ClassSpec#type.def,
case Def of
#'Externaltypereference'{module=M,type=T} ->
#objectclass{fields=Def}; % in case of recursive definitions
Tref = #'Externaltypereference'{type=TName} ->
{MName,RefType} = get_referenced_type(S,Tref),
case is_class(S,RefType) of
true ->
NewState = update_state(S#state{type=RefType,
tname=TName},MName),
check_class(NewState,get_class_def(S,RefType));
_ ->
error({class,{internal_error,RefType},S})
end;
{pt,ClassRef,Params} ->
%% parameterized class
{_,PClassDef} = get_referenced_type(S,ClassRef),
NewParaList =
[match_parameters(S,TmpParam,S#state.parameters)||
TmpParam <- Params],
instantiate_pclass(S,PClassDef,NewParaList)
end;
check_class(S,C) when is_record(C,objectclass) ->
NewFieldSpec = check_class_fields(S,C#objectclass.fields),
C#objectclass{fields=NewFieldSpec};
check_class(_S,{poc,_ObjSet,_Params}) ->
'fix this later';
check_class(S,ClassName) ->
{RefMod,Def} = get_referenced_type(S,ClassName),
case Def of
ClassDef when is_record(ClassDef,classdef) ->
case ClassDef#classdef.checked of
true ->
ClassDef#classdef.typespec;
idle ->
ClassDef#classdef.typespec;
false ->
Name=ClassName#'Externaltypereference'.type,
store_class(S,idle,ClassDef,Name),
% NewS = S#state{mname=RefMod,type=Def,tname=Name},
NewS = update_state(S#state{type=Def,tname=Name},RefMod),
CheckedTS = check_class(NewS,ClassDef#classdef.typespec),
store_class(S,true,ClassDef#classdef{typespec=CheckedTS},Name),
CheckedTS
end;
TypeDef when is_record(TypeDef,typedef) ->
%% this case may occur when a definition is a reference
%% to a class definition.
case TypeDef#typedef.typespec of
#type{def=Ext} when is_record(Ext,'Externaltypereference') ->
check_class(S,Ext)
end
end.
instantiate_pclass(S=#state{parameters=_OldArgs},PClassDef,Params) ->
#ptypedef{args=Args,typespec=Type} = PClassDef,
MatchedArgs = match_args(S,Args, Params, []),
% NewS = S#state{type=Type,parameters=MatchedArgs++OldArgs,abscomppath=[]},
NewS = S#state{type=Type,parameters=MatchedArgs,abscomppath=[]},
check_class(NewS,#classdef{name=S#state.tname,typespec=Type}).
store_class(S,Mode,ClassDef,ClassName) ->
NewCDef = ClassDef#classdef{checked=Mode},
asn1_db:dbput(S#state.mname,ClassName,NewCDef).
check_class_fields(S,Fields) ->
check_class_fields(S,Fields,[]).
check_class_fields(S,[F|Fields],Acc) ->
NewField =
case element(1,F) of
fixedtypevaluefield ->
{_,Name,Type,Unique,OSpec} = F,
RefType = check_type(S,#typedef{typespec=Type},Type),
{fixedtypevaluefield,Name,RefType,Unique,OSpec};
object_or_fixedtypevalue_field ->
{_,Name,Type,Unique,OSpec} = F,
Type2 = maybe_unchecked_OCFT(S,Type),
Cat =
case asn1ct_gen:type(asn1ct_gen:get_inner(Type2#type.def)) of
Def when is_record(Def,typereference);
is_record(Def,'Externaltypereference') ->
{_,D} = get_referenced_type(S,Def),
D;
{undefined,user} ->
%% neither of {primitive,bif} or {constructed,bif}
{_,D} = get_referenced_type(S,#'Externaltypereference'{module=S#state.mname,type=Type#type.def}),
D;
_ ->
Type
end,
case Cat of
Class when is_record(Class,classdef) ->
%% Type must be a referenced type => change it
%% to an external reference.
ToExt = fun(#type{def= CE = #'Externaltypereference'{}}) -> CE; (T) -> T end,
{objectfield,Name,ToExt(Type),Unique,OSpec};
_ ->
RefType = check_type(S,#typedef{typespec=Type},Type),
{fixedtypevaluefield,Name,RefType,Unique,OSpec}
end;
objectset_or_fixedtypevalueset_field ->
{_,Name,Type,OSpec} = F,
RefType =
case (catch check_type(S,#typedef{typespec=Type},Type)) of
{asn1_class,_ClassDef} ->
case if_current_checked_type(S,Type) of
true ->
Type#type.def;
_ ->
check_class(S,Type)
end;
CheckedType when is_record(CheckedType,type) ->
CheckedType;
_ ->
error({class,"internal error, check_class_fields",S})
end,
if
is_record(RefType,'Externaltypereference') ->
{objectsetfield,Name,Type,OSpec};
is_record(RefType,classdef) ->
{objectsetfield,Name,Type,OSpec};
is_record(RefType,objectclass) ->
{objectsetfield,Name,Type,OSpec};
true ->
{fixedtypevaluesetfield,Name,RefType,OSpec}
end;
typefield ->
case F of
{TF,Name,{'DEFAULT',Type}} ->
{TF,Name,{'DEFAULT',check_type(S,#typedef{typespec=Type},Type)}};
_ -> F
end;
_ -> F
end,
check_class_fields(S,Fields,[NewField|Acc]);
check_class_fields(_S,[],Acc) ->
lists:reverse(Acc).
maybe_unchecked_OCFT(S,Type) ->
case Type#type.def of
#'ObjectClassFieldType'{type=undefined} ->
check_type(S,#typedef{typespec=Type},Type);
_ ->
Type
end.
if_current_checked_type(S,#type{def=Def}) ->
CurrentModule = S#state.mname,
CurrentCheckedName = S#state.tname,
MergedModules = S#state.inputmodules,
% CurrentCheckedModule = S#state.mname,
case Def of
#'Externaltypereference'{module=CurrentModule,
type=CurrentCheckedName} ->
true;
#'Externaltypereference'{module=ModuleName,
type=CurrentCheckedName} ->
case MergedModules of
undefined ->
false;
_ ->
lists:member(ModuleName,MergedModules)
end;
_ ->
false
end.
check_pobject(_S,PObject) when is_record(PObject,pobjectdef) ->
Def = PObject#pobjectdef.def,
Def.
check_pobjectset(S,PObjSet) ->
#pvaluesetdef{pos=Pos,name=Name,args=Args,type=Type,
valueset=ValueSet}=PObjSet,
{Mod,Def} = get_referenced_type(S,Type#type.def),
case Def of
#classdef{} ->
ClassName = #'Externaltypereference'{module=Mod,
type=get_datastr_name(Def)},
{valueset,Set} = ValueSet,
% ObjectSet = #'ObjectSet'{class={objectclassname,ClassName},
ObjectSet = #'ObjectSet'{class=ClassName,
set=Set},
#pobjectsetdef{pos=Pos,name=Name,args=Args,class=Type#type.def,
def=ObjectSet};
_ ->
PObjSet
end.
check_object(_S,ObjDef,ObjSpec) when (ObjDef#typedef.checked == true) ->
ObjSpec;
check_object(S,_ObjDef,#'Object'{classname=ClassRef,def=ObjectDef}) ->
?dbg("check_object ~p~n",[ObjectDef]),
%% io:format("check_object,object: ~p~n",[ObjectDef]),
% {MName,_ClassDef} = get_referenced_type(S,ClassRef),
NewClassRef = check_externaltypereference(S,ClassRef),
ClassDef =
case get_referenced_type(S,ClassRef) of
{MName,ClDef=#classdef{checked=false}} ->
NewState = update_state(S#state{type=ClDef,
tname=ClassRef#'Externaltypereference'.type},MName),
ObjClass=
check_class(NewState,ClDef),
#classdef{checked=true,
typespec=ObjClass};
{_,_ClDef} when is_record(_ClDef,classdef) ->
_ClDef;
{MName,_TDef=#typedef{checked=false,pos=Pos,
name=_TName,typespec=TS}} ->
ClDef = #classdef{pos=Pos,name=_TName,typespec=TS},
NewState = update_state(S#state{type=_TDef,
tname=ClassRef#'Externaltypereference'.type},MName),
ObjClass =
check_class(NewState,ClDef),
ClDef#classdef{checked=true,typespec=ObjClass};
{_,_ClDef} ->
_ClDef
end,
NewObj =
case ObjectDef of
Def when is_tuple(Def), (element(1,Def)==object) ->
NewSettingList = check_objectdefn(S,Def,ClassDef),
#'Object'{def=NewSettingList};
{po,{object,DefObj},ArgsList} ->
{_,Object} = get_referenced_type(S,DefObj),%DefObj is a
%%#'Externalvaluereference' or a #'Externaltypereference'
%% Maybe this call should be catched and in case of an exception
%% a not initialized parameterized object should be returned.
instantiate_po(S,ClassDef,Object,ArgsList);
{pv,{simpledefinedvalue,ObjRef},ArgList} ->
{_,Object} = get_referenced_type(S,ObjRef),
instantiate_po(S,ClassDef,Object,ArgList);
#'Externalvaluereference'{} ->
{_,Object} = get_referenced_type(S,ObjectDef),
check_object(S,Object,Object#typedef.typespec);
[] ->
%% An object with no fields. All class fields must be
%% optional or default. Check that all fields in
%% class are 'OPTIONAL' or 'DEFAULT'
class_fields_optional_check(S,ClassDef),
#'Object'{def={object,defaultsyntax,[]}};
_ ->
exit({error,{no_object,ObjectDef},S})
end,
Gen = gen_incl(S,NewObj#'Object'.def,
(ClassDef#classdef.typespec)#objectclass.fields),
NewObj#'Object'{classname=NewClassRef,gen=Gen};
check_object(S,
_ObjSetDef,
ObjSet=#'ObjectSet'{class=ClassRef}) ->
%% io:format("check_object,SET: ~p~n",[ObjSet#'ObjectSet'.set]),
?dbg("check_object set: ~p~n",[ObjSet#'ObjectSet'.set]),
{_,ClassDef} = get_referenced_type(S,ClassRef),
NewClassRef = check_externaltypereference(S,ClassRef),
%% XXXXXXXXXX
case ObjSet of
#'ObjectSet'{set={'Externaltypereference',undefined,'MSAccessProtocol',
'AllOperations'}} ->
ok;
_ ->
ok
end,
{UniqueFieldName,UniqueInfo} =
case (catch get_unique_fieldname(S,ClassDef)) of
{error,'__undefined_',_} ->
{{unique,undefined},{unique,undefined}};
{asn1,Msg,_} -> error({class,Msg,S});
{'EXIT',Msg} -> error({class,{internal_error,Msg},S});
Other -> {element(1,Other),Other}
end,
NewObjSet=
case prepare_objset(ObjSet#'ObjectSet'.set) of
{set,SET,EXT} ->
CheckedSet = check_object_list(S,NewClassRef,SET),
NewSet = get_unique_valuelist(S,CheckedSet,UniqueInfo),
ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
set=extensionmark(NewSet,EXT)};
{'SingleValue',ERef = #'Externalvaluereference'{}} ->
{RefedMod,ObjDef} = get_referenced_type(S,ERef),
#'Object'{def=CheckedObj} =
check_object(S,ObjDef,ObjDef#typedef.typespec),
NewSet = get_unique_valuelist(S,[{{RefedMod,get_datastr_name(ObjDef)},
CheckedObj}],
UniqueInfo),
ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
set=NewSet};
['EXTENSIONMARK'] ->
ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
set=['EXTENSIONMARK']};
OSref when is_record(OSref,'Externaltypereference') ->
{_,OS=#typedef{typespec=OSdef}} = get_referenced_type(S,OSref),
check_object(S,OS,OSdef);
{Type,{'EXCEPT',Exclusion}} when is_record(Type,type) ->
{_,TDef} = get_referenced_type(S,Type#type.def),
OS = TDef#typedef.typespec,
NewSet = reduce_objectset(OS#'ObjectSet'.set,Exclusion),
NewOS = OS#'ObjectSet'{set=NewSet},
check_object(S,TDef#typedef{typespec=NewOS},
NewOS);
#type{def={pt,DefinedObjSet,ParamList}} ->
{_,PObjSetDef} = get_referenced_type(S,DefinedObjSet),
NewParamList =
[match_parameters(S,TmpParam,S#state.parameters)||
TmpParam <- ParamList],
instantiate_pos(S,ClassRef,PObjSetDef,NewParamList);
%% actually this is an ObjectSetFromObjects construct, it
%% is when the object set is retrieved from an object
%% field.
#type{def=#'ObjectClassFieldType'{classname=ObjName,
fieldname=FieldName}} ->
{RefedObjMod,TDef} = get_referenced_type(S,ObjName),
OS=TDef#typedef.typespec,
%% should get the right object set here. Get the field
%% FieldName out of the object set OS of class
%% OS#'ObjectSet'.class
OS2=check_object(S,TDef,OS),
NewSet=object_set_from_objects(S,RefedObjMod,FieldName,OS2),
ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
set=NewSet};
{'ObjectSetFromObjects',{_,_,ObjName},FieldName} ->
{RefedObjMod,TDef} = get_referenced_type(S,ObjName),
OS=TDef#typedef.typespec,
%% should get the right object set here. Get the field
%% FieldName out of the object set OS of class
%% OS#'ObjectSet'.class
OS2=check_object(S,TDef,OS),
NewSet=object_set_from_objects(S,RefedObjMod,FieldName,OS2),
ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
set=NewSet};
{'ObjectSetFromObjects',{_,ObjName},FieldName} ->
%% This is a ObjectSetFromObjects, i.e.
%% ObjectSetFromObjects ::= ReferencedObjects "." FieldName
%% with a defined object as ReferencedObjects. And
%% the FieldName of the Class (object) contains an object set.
{RefedObjMod,TDef} = get_referenced_type(S,ObjName),
O1 = TDef#typedef.typespec,
O2 = check_object(S,TDef,O1),
NewSet = object_set_from_objects(S,RefedObjMod,FieldName,O2),
OS2=ObjSet#'ObjectSet'{uniquefname=UniqueFieldName,
set=NewSet},
%%io:format("ObjectSet: ~p~n",[OS2]),
OS2;
{pos,{objectset,_,DefinedObjSet},Params} ->
{_,PObjSetDef} = get_referenced_type(S,DefinedObjSet),
NewParamList =
[match_parameters(S,TmpParam,S#state.parameters)||
TmpParam <- Params],
instantiate_pos(S,ClassRef,PObjSetDef,NewParamList);
Unknown ->
exit({error,{unknown_object_set,Unknown},S})
end,
NewSet2 = remove_duplicate_objects(NewObjSet#'ObjectSet'.set),
NewObjSet2 = NewObjSet#'ObjectSet'{set=NewSet2},
Gen = gen_incl_set(S,NewObjSet2#'ObjectSet'.set,
ClassDef),
?dbg("check_object done~n",[]),
NewObjSet2#'ObjectSet'{class=NewClassRef,gen=Gen}.
%% remove_duplicate_objects/1 remove duplicates of objects.
%% For instance may Set contain objects of same class from
%% different object sets that in fact might be duplicates.
remove_duplicate_objects(Set) when is_list(Set) ->
Pred = fun({A,B,_},{A,C,_}) when B =< C -> true;
({A,_,_},{B,_,_}) when A < B -> true;
('EXTENSIONMARK','EXTENSIONMARK') -> true;
(T,A) when is_tuple(T),is_atom(A) -> true;% EXTENSIONMARK last in list
(_,_) -> false
end,
lists:usort(Pred,Set).
%%
extensionmark(L,true) ->
case lists:member('EXTENSIONMARK',L) of
true -> L;