diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/asn1/src/asn1ct_imm.erl | 106 |
1 files changed, 36 insertions, 70 deletions
diff --git a/lib/asn1/src/asn1ct_imm.erl b/lib/asn1/src/asn1ct_imm.erl index ab5969e891..11135a6bbc 100644 --- a/lib/asn1/src/asn1ct_imm.erl +++ b/lib/asn1/src/asn1ct_imm.erl @@ -266,7 +266,7 @@ per_enc_open_type([{'cond', %% We KNOW that encode_unconstrained_number/1 will return an IO list; %% therefore the call to complete/1 can be replaced with a cheaper %% call to iolist_to_binary/1. - {Dst,Imm} = per_enc_open_type_output([Call], []), + {Dst,Imm} = per_enc_open_type_output([Call]), ToBin = {erlang,iolist_to_binary}, Imm ++ per_enc_open_type(Dst, ToBin, Aligned); per_enc_open_type([{call,erlang,iolist_to_binary,Args}], Aligned) -> @@ -279,7 +279,7 @@ per_enc_open_type(Imm0, Aligned) -> Prefix ++ enc_open_type(Imm1, Aligned) catch throw:impossible -> - {Dst,Imm} = per_enc_open_type_output(Imm0, []), + {Dst,Imm} = per_enc_open_type_output(Imm0), ToBin = {enc_mod(Aligned),complete}, Imm ++ per_enc_open_type(Dst, ToBin, Aligned) end. @@ -316,8 +316,9 @@ per_enc_extensions(Val0, Pos0, NumBits, Aligned) when NumBits > 0 -> _ -> [{put_bits,Bitmap,NumBits,[1]}] end, B++[{call,per_common,extension_bitmap,[Val,Pos,Pos+NumBits],Bitmap}, - {'cond',[[{eq,Bitmap,0}], - ['_'|Length ++ PutBits]],{var,"Extensions"}}]. + {list,[{'cond',[[{eq,Bitmap,0}], + ['_'|Length ++ PutBits]]}], + {var,"Extensions"}}]. per_enc_optional(Val0, {Pos,DefVals}, _Aligned) when is_integer(Pos), is_list(DefVals) -> @@ -970,13 +971,11 @@ mk_dest(S) -> S. split_off_nonbuilding(Imm) -> lists:splitwith(fun is_nonbuilding/1, Imm). -is_nonbuilding({apply,_,_,_}) -> true; is_nonbuilding({assign,_,_}) -> true; is_nonbuilding({call,_,_,_,_}) -> true; -is_nonbuilding({call_gen,_,_,_,_,_,_}) -> true; -is_nonbuilding({'cond',_,_}) -> true; is_nonbuilding({lc,_,_,_,_}) -> true; is_nonbuilding({set,_,_}) -> true; +is_nonbuilding({list,_,_}) -> true; is_nonbuilding({sub,_,_,_}) -> true; is_nonbuilding({'try',_,_,_,_}) -> true; is_nonbuilding(_) -> false. @@ -1394,20 +1393,9 @@ num_bits([_|_], _) -> throw(impossible); num_bits([], Sum) -> Sum. -per_enc_open_type_output([{apply,F,A}], Acc) -> +per_enc_open_type_output(Imm) -> Dst = output_var(), - {Dst,lists:reverse(Acc, [{apply,F,A,Dst}])}; -per_enc_open_type_output([{call,M,F,A}], Acc) -> - Dst = output_var(), - {Dst,lists:reverse(Acc, [{call,M,F,A,Dst}])}; -per_enc_open_type_output([{call_gen,P,K,G,I,As}], Acc) -> - Dst = output_var(), - {Dst,lists:reverse(Acc, [{call_gen,P,K,G,I,As,Dst}])}; -per_enc_open_type_output([{'cond',Cs}], Acc) -> - Dst = output_var(), - {Dst,lists:reverse(Acc, [{'cond',Cs,Dst}])}; -per_enc_open_type_output([H|T], Acc) -> - per_enc_open_type_output(T, [H|Acc]). + {Dst,[{list,Imm,Dst}]}. output_var() -> asn1ct_name:new(enc), @@ -1645,8 +1633,6 @@ enc_pre_cg_2({call,_,_,_}=Imm, _, _) -> Imm; enc_pre_cg_2({call_gen,_,_,_,_,_}=Imm, _, _) -> Imm; -enc_pre_cg_2({call_gen,_,_,_,_,_,_}=Imm, _, _) -> - Imm; enc_pre_cg_2({'cond',Cs0}, StL, _StB) -> Cs = [{C,enc_pre_cg_1(Act, StL, outside_seq)} || [C|Act] <- Cs0], {'cond',Cs}; @@ -1680,12 +1666,12 @@ enc_make_cons({integer,Int}, {cons,{binary,H},T}) -> enc_make_cons(H, T) -> {cons,H,T}. -enc_pre_cg_nonbuilding({'cond',Cs0,Dst}, StL) -> - Cs = [{C,enc_pre_cg_1(Act, StL, outside_seq)} || [C|Act] <- Cs0], - {'cond',Cs,Dst}; enc_pre_cg_nonbuilding({lc,B0,Var,List,Dst}, StL) -> B = enc_pre_cg_1(B0, StL, outside_seq), {lc,B,Var,List,Dst}; +enc_pre_cg_nonbuilding({list,List0,Dst}, _StL) -> + List = enc_pre_cg_1(List0, outside_list, outside_seq), + {list,List,Dst}; enc_pre_cg_nonbuilding({'try',Try0,{P,Succ0},Else0,Dst}, StL) -> Try = enc_pre_cg_1(Try0, StL, outside_seq), Succ = enc_pre_cg_1(Succ0, StL, outside_seq), @@ -1718,9 +1704,6 @@ enc_cg({apply,F0,As0}) -> {M,F,_} -> emit([{asis,M},":",{asis,F},"(",As,")"]) end; -enc_cg({apply,F,As,Dst}) -> - emit([mk_val(Dst)," = "]), - enc_cg({apply,F,As}); enc_cg({assign,Dst0,Expr}) -> Dst = mk_val(Dst0), emit([Dst," = ",Expr]); @@ -1736,16 +1719,8 @@ enc_cg({call,M,F,As0,Dst}) -> enc_cg({call_gen,Prefix,Key,Gen,_,As0}) -> As = [mk_val(A) || A <- As0], asn1ct_func:call_gen(Prefix, Key, Gen, As); -enc_cg({call_gen,Prefix,Key,Gen,_,As0,Dst}) -> - As = [mk_val(A) || A <- As0], - emit([mk_val(Dst)," = "]), - asn1ct_func:call_gen(Prefix, Key, Gen, As); enc_cg({'cond',Cs}) -> enc_cg_cond(Cs); -enc_cg({'cond',Cs,Dst0}) -> - Dst = mk_val(Dst0), - emit([Dst," = "]), - enc_cg_cond(Cs); enc_cg({error,Error}) when is_function(Error, 0) -> Error(); enc_cg({error,Var0}) -> @@ -1761,6 +1736,9 @@ enc_cg({lc,Body,Var,List,Dst}) -> emit([mk_val(Dst)," = ["]), enc_cg(Body), emit([" || ",mk_val(Var)," <- ",mk_val(List),"]"]); +enc_cg({list,List,Dst}) -> + emit([mk_val(Dst)," = "]), + enc_cg(List); enc_cg(nil) -> emit("[]"); enc_cg({sub,Src0,Int,Dst0}) -> @@ -1989,19 +1967,12 @@ enc_opt_al(Imm0) -> {Imm,_} = enc_opt_al_1(Imm0, unknown), Imm. -enc_opt_al_1([{'cond',Cs0,Dst},{call,per,complete,[Dst],Bin}|T0], Al0) -> - {Cs1,{M,F}} = enc_opt_al_prepare_cond(Cs0), - {Cs,_} = enc_opt_al_cond(Cs1, 0), - {T,Al} = enc_opt_al_1([{call,M,F,[Dst],Bin}|T0], Al0), - {[{'cond',Cs,Dst}|T],Al}; enc_opt_al_1([H0|T0], Al0) -> {H,Al1} = enc_opt_al(H0, Al0), {T,Al} = enc_opt_al_1(T0, Al1), {H++T,Al}; enc_opt_al_1([], Al) -> {[],Al}. -enc_opt_al({apply,_,_,_}=Imm, Al) -> - {[Imm],Al}; enc_opt_al({assign,_,_}=Imm, Al) -> {[Imm],Al}; enc_opt_al({block,Bl0}, Al0) -> @@ -2023,6 +1994,10 @@ enc_opt_al({'cond',Cs0}, Al0) -> {[{'cond',Cs}],Al}; enc_opt_al({error,_}=Imm, Al) -> {[Imm],Al}; +enc_opt_al({list,Imm0,Dst}, Al) -> + Imm1 = enc_opt_hoist_align(Imm0), + {Imm,_} = enc_opt_al_1(Imm1, 0), + {[{list,Imm,Dst}],Al}; enc_opt_al({put_bits,V,N,[U,align]}, Al0) when Al0 rem 8 =:= 0 -> Al = if is_integer(N) -> N*U; @@ -2078,29 +2053,25 @@ enc_opt_al_cond_1([], _, CAcc, AAcc) -> end, {lists:reverse(CAcc),Al}. -enc_opt_al_prepare_cond(Cs0) -> - try enc_opt_al_prepare_cond_1(Cs0) of - Cs -> - {Cs,{erlang,iolist_to_binary}} +enc_opt_hoist_align([{'cond',Cs0},{put_bits,0,0,[1,align]}]=Imm) -> + try + Cs = [insert_align_last(C) || C <- Cs0], + [{'cond',Cs}] catch throw:impossible -> - {Cs0,{per,complete}} - end. - -enc_opt_al_prepare_cond_1(Cs) -> - [[C|enc_opt_al_prepare_cond_2(Act)] || [C|Act] <- Cs]. - -enc_opt_al_prepare_cond_2([{put_bits,_,binary,[U|_]}|_]) when U rem 8 =/= 0 -> - throw(impossible); -enc_opt_al_prepare_cond_2([{put_bits,_,_,_}=H|T]) -> - [H|enc_opt_al_prepare_cond_2(T)]; -enc_opt_al_prepare_cond_2([{call,per_common,encode_fragmented,_}=H|T]) -> - [H|enc_opt_al_prepare_cond_2(T)]; -enc_opt_al_prepare_cond_2([_|_]) -> - throw(impossible); -enc_opt_al_prepare_cond_2([]) -> - [{put_bits,0,0,[1,align]}]. + Imm + end; +enc_opt_hoist_align(Imm) -> Imm. +insert_align_last([_,{error,_}]=C) -> + C; +insert_align_last([H|T]) -> + case lists:last(T) of + {put_bits,_,_,_} -> + [H|T ++ [{put_bits,0,0,[1,align]}]]; + _ -> + throw(impossible) + end. %%% %%% For the aligned PER format, fix up the intermediate format @@ -2110,8 +2081,6 @@ enc_opt_al_prepare_cond_2([]) -> per_fixup([{apply,_,_}=H|T]) -> [H|per_fixup(T)]; -per_fixup([{apply,_,_,_}=H|T]) -> - [H|per_fixup(T)]; per_fixup([{block,Block}|T]) -> [{block,per_fixup(Block)}|per_fixup(T)]; per_fixup([{'assign',_,_}=H|T]) -> @@ -2119,23 +2088,20 @@ per_fixup([{'assign',_,_}=H|T]) -> per_fixup([{'cond',Cs0}|T]) -> Cs = [[C|per_fixup(Act)] || [C|Act] <- Cs0], [{'cond',Cs}|per_fixup(T)]; -per_fixup([{'cond',Cs0,Dst}|T]) -> - Cs = [[C|per_fixup(Act)] || [C|Act] <- Cs0], - [{'cond',Cs,Dst}|per_fixup(T)]; per_fixup([{call,_,_,_}=H|T]) -> [H|per_fixup(T)]; per_fixup([{call,_,_,_,_}=H|T]) -> [H|per_fixup(T)]; per_fixup([{call_gen,_,_,_,_,_}=H|T]) -> [H|per_fixup(T)]; -per_fixup([{call_gen,_,_,_,_,_,_}=H|T]) -> - [H|per_fixup(T)]; per_fixup([{error,_}=H|T]) -> [H|per_fixup(T)]; per_fixup([{lc,B,V,L}|T]) -> [{lc,per_fixup(B),V,L}|per_fixup(T)]; per_fixup([{lc,B,V,L,Dst}|T]) -> [{lc,per_fixup(B),V,L,Dst}|per_fixup(T)]; +per_fixup([{list,Imm,Dst}|T]) -> + [{list,per_fixup(Imm),Dst}|per_fixup(T)]; per_fixup([{set,_,_}=H|T]) -> [H|per_fixup(T)]; per_fixup([{sub,_,_,_}=H|T]) -> |