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authorBjörn Gustavsson <[email protected]>2012-11-27 12:47:29 +0100
committerBjörn Gustavsson <[email protected]>2012-12-06 14:22:36 +0100
commitf770480d9336b5ae9905b5d53213a8021faa9bab (patch)
tree920a5c87bb717cacbea3a666f1e65b90db3dfaa6 /lib/asn1/src
parenta14c59482e5823b4a056b9ca7bb80a9ac65de726 (diff)
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Use asn1ct_imm:effective_constraint/2
It is error-prone to have several copies of the same function.
Diffstat (limited to 'lib/asn1/src')
-rw-r--r--lib/asn1/src/asn1ct_gen_per.erl111
-rw-r--r--lib/asn1/src/asn1ct_gen_per_rt2ct.erl81
2 files changed, 8 insertions, 184 deletions
diff --git a/lib/asn1/src/asn1ct_gen_per.erl b/lib/asn1/src/asn1ct_gen_per.erl
index e82c389afc..665f4c74c0 100644
--- a/lib/asn1/src/asn1ct_gen_per.erl
+++ b/lib/asn1/src/asn1ct_gen_per.erl
@@ -146,10 +146,12 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
case D#type.def of
'INTEGER' ->
emit({"?RT_PER:encode_integer(", %fel
- {asis,effective_constraint(integer,Constraint)},",",Value,")"});
+ {asis,asn1ct_imm:effective_constraint(integer,Constraint)},
+ ",",Value,")"});
{'INTEGER',NamedNumberList} ->
emit({"?RT_PER:encode_integer(",
- {asis,effective_constraint(integer,Constraint)},",",Value,",",
+ {asis,asn1ct_imm:effective_constraint(integer,Constraint)},
+ ",",Value,",",
{asis,NamedNumberList},")"});
{'ENUMERATED',{Nlist1,Nlist2}} ->
NewList = lists:concat([[{0,X}||{X,_} <- Nlist1],['EXT_MARK'],[{1,X}||{X,_} <- Nlist2]]),
@@ -295,107 +297,6 @@ emit_enc_enumerated_case(_Per,C, {0,EnumName}, Count) ->
emit_enc_enumerated_case(_Erule, C, EnumName, Count) ->
emit(["'",EnumName,"' -> ?RT_PER:encode_integer(",{asis,C},", ",Count,")"]).
-%% effective_constraint(Type,C)
-%% Type = atom()
-%% C = [C1,...]
-%% C1 = {'SingleValue',SV} | {'ValueRange',VR} | {atom(),term()}
-%% SV = integer() | [integer(),...]
-%% VR = {Lb,Ub}
-%% Lb = 'MIN' | integer()
-%% Ub = 'MAX' | integer()
-%% Returns a single value if C only has a single value constraint, and no
-%% value range constraints, that constrains to a single value, otherwise
-%% returns a value range that has the lower bound set to the lowest value
-%% of all single values and lower bound values in C and the upper bound to
-%% the greatest value.
-effective_constraint(integer,[C={{_,_},_}|_Rest]) -> % extension
- [C]; %% [C|effective_constraint(integer,Rest)]; XXX what is possible ???
-effective_constraint(integer,C) ->
- SVs = get_constraints(C,'SingleValue'),
- SV = effective_constr('SingleValue',SVs),
- VRs = get_constraints(C,'ValueRange'),
- VR = effective_constr('ValueRange',VRs),
- greatest_common_range(SV,VR).
-
-effective_constr(_,[]) ->
- [];
-effective_constr('SingleValue',List) ->
- SVList = lists:flatten(lists:map(fun(X)->element(2,X)end,List)),
- %% Sort and remove duplicates before generating SingleValue or ValueRange
- %% In case of ValueRange, also check for 'MIN and 'MAX'
- case lists:usort(SVList) of
- [N] ->
- [{'SingleValue',N}];
- L when is_list(L) ->
- [{'ValueRange',{least_Lb(L),greatest_Ub(L)}}]
- end;
-effective_constr('ValueRange',List) ->
- LBs = lists:map(fun({_,{Lb,_}})-> Lb end,List),
- UBs = lists:map(fun({_,{_,Ub}})-> Ub end,List),
- Lb = least_Lb(LBs),
- [{'ValueRange',{Lb,lists:max(UBs)}}].
-
-greatest_common_range([],VR) ->
- VR;
-greatest_common_range(SV,[]) ->
- SV;
-greatest_common_range(SV,VR) ->
- greatest_common_range2(mk_vr(SV),mk_vr(VR)).
-greatest_common_range2({_,Int},{'MIN',Ub}) when is_integer(Int),
- Int > Ub ->
- [{'ValueRange',{'MIN',Int}}];
-greatest_common_range2({_,Int},{Lb,Ub}) when is_integer(Int),
- Int < Lb ->
- [{'ValueRange',{Int,Ub}}];
-greatest_common_range2({_,Int},VR={_Lb,_Ub}) when is_integer(Int) ->
- [{'ValueRange',VR}];
-greatest_common_range2({_,L},{Lb,Ub}) when is_list(L) ->
- Min = least_Lb([Lb|L]),
- Max = greatest_Ub([Ub|L]),
- [{'ValueRange',{Min,Max}}];
-greatest_common_range2({Lb1,Ub1},{Lb2,Ub2}) ->
- Min = least_Lb([Lb1,Lb2]),
- Max = greatest_Ub([Ub1,Ub2]),
- [{'ValueRange',{Min,Max}}].
-
-mk_vr([{Type,I}]) when is_atom(Type), is_integer(I) ->
- {I,I};
-mk_vr([{Type,{Lb,Ub}}]) when is_atom(Type) ->
- {Lb,Ub};
-mk_vr(Other) ->
- Other.
-
-least_Lb(L) ->
- case lists:member('MIN',L) of
- true -> 'MIN';
- _ -> lists:min(L)
- end.
-
-greatest_Ub(L) ->
- case lists:member('MAX',L) of
- true -> 'MAX';
- _ -> lists:max(L)
- end.
-
-
-get_constraints(L=[{Key,_}],Key) ->
- L;
-get_constraints([],_) ->
- [];
-get_constraints(C,Key) ->
- {value,L} = keysearch_allwithkey(Key,1,C,[]),
- L.
-
-keysearch_allwithkey(Key,Ix,C,Acc) ->
- case lists:keysearch(Key,Ix,C) of
- false ->
- {value,Acc};
- {value,T} ->
- RestC = lists:delete(T,C),
- keysearch_allwithkey(Key,Ix,RestC,[T|Acc])
- end.
-
-
%% Object code generating for encoding and decoding
%% ------------------------------------------------
@@ -1235,10 +1136,10 @@ gen_dec_prim(Erules,Att,BytesVar) ->
case Typename of
'INTEGER' ->
emit({"?RT_PER:decode_integer(",BytesVar,",",
- {asis,effective_constraint(integer,Constraint)},")"});
+ {asis,asn1ct_imm:effective_constraint(integer,Constraint)},")"});
{'INTEGER',NamedNumberList} ->
emit({"?RT_PER:decode_integer(",BytesVar,",",
- {asis,effective_constraint(integer,Constraint)},",",
+ {asis,asn1ct_imm:effective_constraint(integer,Constraint)},",",
{asis,NamedNumberList},")"});
'REAL' ->
diff --git a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl
index 603699e4af..e40ad5ff19 100644
--- a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl
+++ b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl
@@ -624,23 +624,6 @@ get_constraint(C,Key) ->
V
end.
-get_constraints(L=[{Key,_}],Key) ->
- L;
-get_constraints([],_) ->
- [];
-get_constraints(C,Key) ->
- {value,L} = keysearch_allwithkey(Key,1,C,[]),
- L.
-
-keysearch_allwithkey(Key,Ix,C,Acc) ->
- case lists:keysearch(Key,Ix,C) of
- false ->
- {value,Acc};
- {value,T} ->
- RestC = lists:delete(T,C),
- keysearch_allwithkey(Key,Ix,RestC,[T|Acc])
- end.
-
%% effective_constraint(Type,C)
%% Type = atom()
%% C = [C1,...]
@@ -657,69 +640,9 @@ keysearch_allwithkey(Key,Ix,C,Acc) ->
effective_constraint(integer,[C={{_,_},_}|_Rest]) -> % extension
[C]; %% [C|effective_constraint(integer,Rest)]; XXX what is possible ???
effective_constraint(integer,C) ->
- SVs = get_constraints(C,'SingleValue'),
- SV = effective_constr('SingleValue',SVs),
- VRs = get_constraints(C,'ValueRange'),
- VR = effective_constr('ValueRange',VRs),
- CRange = greatest_common_range(SV,VR),
- pre_encode(integer,CRange);
+ pre_encode(integer, asn1ct_imm:effective_constraint(integer, C));
effective_constraint(bitstring,C) ->
- get_constraint(C,'SizeConstraint').
-
-effective_constr(_,[]) ->
- [];
-effective_constr('SingleValue',List) ->
- SVList = lists:flatten(lists:map(fun(X)->element(2,X)end,List)),
- %% Sort and remove duplicates before generating SingleValue or ValueRange
- %% In case of ValueRange, also check for 'MIN and 'MAX'
- case lists:usort(SVList) of
- [N] ->
- [{'SingleValue',N}];
- L when is_list(L) ->
- [{'ValueRange',{least_Lb(L),greatest_Ub(L)}}]
- end;
-effective_constr('ValueRange',List) ->
- LBs = lists:map(fun({_,{Lb,_}})-> Lb end,List),
- UBs = lists:map(fun({_,{_,Ub}})-> Ub end,List),
- Lb = least_Lb(LBs),
- [{'ValueRange',{Lb,lists:max(UBs)}}].
-
-greatest_common_range([],VR) ->
- VR;
-greatest_common_range(SV,[]) ->
- SV;
-greatest_common_range([{_,Int}],[{_,{'MIN',Ub}}]) when is_integer(Int),
- Int > Ub ->
- [{'ValueRange',{'MIN',Int}}];
-greatest_common_range([{_,Int}],[{_,{Lb,Ub}}]) when is_integer(Int),
- Int < Lb ->
- [{'ValueRange',{Int,Ub}}];
-greatest_common_range([{_,Int}],VR=[{_,{_Lb,_Ub}}]) when is_integer(Int) ->
- VR;
-greatest_common_range([{_,L}],[{_,{Lb,Ub}}]) when is_list(L) ->
- Min = least_Lb([Lb|L]),
- Max = greatest_Ub([Ub|L]),
- [{'ValueRange',{Min,Max}}];
-greatest_common_range([{_,{Lb1,Ub1}}],[{_,{Lb2,Ub2}}]) ->
- Min = least_Lb([Lb1,Lb2]),
- Max = greatest_Ub([Ub1,Ub2]),
- [{'ValueRange',{Min,Max}}].
-
-
-least_Lb(L) ->
- case lists:member('MIN',L) of
- true -> 'MIN';
- _ -> lists:min(L)
- end.
-
-greatest_Ub(L) ->
- case lists:member('MAX',L) of
- true -> 'MAX';
- _ -> lists:max(L)
- end.
-
-
-
+ asn1ct_imm:effective_constraint(bitstring, C).
pre_encode(integer,[]) ->
[];