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-rw-r--r--lib/asn1/src/asn1ct.erl11
-rw-r--r--lib/asn1/src/asn1ct_constructed_per.erl114
-rw-r--r--lib/asn1/src/asn1ct_func.erl2
-rw-r--r--lib/asn1/src/asn1ct_gen.erl24
-rw-r--r--lib/asn1/src/asn1ct_gen_per.erl6
-rw-r--r--lib/asn1/src/asn1ct_imm.erl834
-rw-r--r--lib/asn1/src/asn1rt_nif.erl2
7 files changed, 748 insertions, 245 deletions
diff --git a/lib/asn1/src/asn1ct.erl b/lib/asn1/src/asn1ct.erl
index f2ccf5f212..f2e9606ccb 100644
--- a/lib/asn1/src/asn1ct.erl
+++ b/lib/asn1/src/asn1ct.erl
@@ -333,8 +333,7 @@ print_structured_errors([_|_]=Errors) ->
print_structured_errors(_) -> ok.
compile1(File, #st{opts=Opts}=St0) ->
- verbose("Erlang ASN.1 version ~p, compiling ~p~n", [?vsn,File], Opts),
- verbose("Compiler Options: ~p~n", [Opts], Opts),
+ compiler_verbose(File, Opts),
Passes = single_passes(),
Base = filename:rootname(filename:basename(File)),
OutFile = outfile(Base, "", Opts),
@@ -349,8 +348,7 @@ compile1(File, #st{opts=Opts}=St0) ->
%% compile_set/3 merges and compiles a number of asn1 modules
%% specified in a .set.asn file to one .erl file.
compile_set(SetBase, Files, #st{opts=Opts}=St0) ->
- verbose("Erlang ASN.1 version ~p compiling ~p ~n", [?vsn,Files], Opts),
- verbose("Compiler Options: ~p~n",[Opts], Opts),
+ compiler_verbose(Files, Opts),
OutFile = outfile(SetBase, "", Opts),
DbFile = outfile(SetBase, "asn1db", Opts),
InputModules = [begin
@@ -363,6 +361,11 @@ compile_set(SetBase, Files, #st{opts=Opts}=St0) ->
Passes = set_passes(),
run_passes(Passes, St).
+compiler_verbose(What, Opts) ->
+ verbose("Erlang ASN.1 compiler ~s\n", [?vsn], Opts),
+ verbose("Compiling: ~p\n", [What], Opts),
+ verbose("Options: ~p\n", [Opts], Opts).
+
%% merge_modules/2 -> returns a module record where the typeorval lists are merged,
%% the exports lists are merged, the imports lists are merged when the
%% elements come from other modules than the merge set, the tagdefault
diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl
index 4672f7edd3..c224f4c9fa 100644
--- a/lib/asn1/src/asn1ct_constructed_per.erl
+++ b/lib/asn1/src/asn1ct_constructed_per.erl
@@ -79,7 +79,7 @@ gen_encode_constructed_imm(Erule, Typename, #type{}=D) ->
[]
end,
Aligned = is_aligned(Erule),
- Value0 = asn1ct_gen:mk_var(asn1ct_name:curr(val)),
+ Value0 = make_var(val),
Optionals = optionals(to_textual_order(CompList)),
ImmOptionals = [asn1ct_imm:per_enc_optional(Value0, Opt, Aligned) ||
Opt <- Optionals],
@@ -87,7 +87,7 @@ gen_encode_constructed_imm(Erule, Typename, #type{}=D) ->
ExtImm = case Ext of
{ext,ExtPos,NumExt} when NumExt > 0 ->
gen_encode_extaddgroup(CompList),
- Value = asn1ct_gen:mk_var(asn1ct_name:curr(val)),
+ Value = make_var(val),
asn1ct_imm:per_enc_extensions(Value, ExtPos,
NumExt, Aligned);
_ ->
@@ -106,19 +106,17 @@ gen_encode_constructed_imm(Erule, Typename, #type{}=D) ->
c_index=N,
usedclassfield=UniqueFieldName,
uniqueclassfield=UniqueFieldName,
- valueindex=ValueIndex
+ valueindex=ValueIndex0
} -> %% N is index of attribute that determines constraint
{Module,ObjSetName} = ObjectSet,
#typedef{typespec=#'ObjectSet'{gen=Gen}} =
asn1_db:dbget(Module, ObjSetName),
case Gen of
true ->
- ObjectEncode =
- asn1ct_gen:un_hyphen_var(lists:concat(['Obj',AttrN])),
- El = make_element(N+1, asn1ct_gen:mk_var(asn1ct_name:curr(val))),
- ValueMatch = value_match(ValueIndex, El),
- ObjSetImm0 = [{assign,{var,ObjectEncode},ValueMatch}],
- {{AttrN,ObjectEncode},ObjSetImm0};
+ ValueIndex = ValueIndex0 ++ [{N+1,top}],
+ Val = make_var(val),
+ {ObjSetImm0,Dst} = enc_dig_out_value(ValueIndex, Val),
+ {{AttrN,Dst},ObjSetImm0};
false ->
{false,[]}
end;
@@ -128,7 +126,7 @@ gen_encode_constructed_imm(Erule, Typename, #type{}=D) ->
%% when the simpletableattributes was at an outer
%% level and the objfun has been passed through the
%% function call
- {{"got objfun through args","ObjFun"},[]};
+ {{"got objfun through args",{var,"ObjFun"}},[]};
_ ->
{false,[]}
end
@@ -136,7 +134,7 @@ gen_encode_constructed_imm(Erule, Typename, #type{}=D) ->
ImmSetExt =
case Ext of
{ext,_Pos,NumExt2} when NumExt2 > 0 ->
- asn1ct_imm:per_enc_extension_bit('Extensions', Aligned);
+ asn1ct_imm:per_enc_extension_bit({var,"Extensions"}, Aligned);
{ext,_Pos,_} ->
asn1ct_imm:per_enc_extension_bit([], Aligned);
_ ->
@@ -540,7 +538,7 @@ gen_encode_choice_imm(Erule, TopType, #type{def={'CHOICE',CompList}}) ->
Aligned = is_aligned(Erule),
Cs = gen_enc_choice(Erule, TopType, CompList, Ext),
[{assign,{expr,"{ChoiceTag,ChoiceVal}"},"Val"}|
- asn1ct_imm:per_enc_choice('ChoiceTag', Cs, Aligned)].
+ asn1ct_imm:per_enc_choice({var,"ChoiceTag"}, Cs, Aligned)].
gen_decode_choice(Erules,Typename,D) when is_record(D,type) ->
asn1ct_name:start(),
@@ -562,14 +560,14 @@ gen_encode_sof(Erule, Typename, SeqOrSetOf, D) ->
gen_encode_sof_imm(Erule, Typename, SeqOrSetOf, #type{}=D) ->
{_SeqOrSetOf,ComponentType} = D#type.def,
Aligned = is_aligned(Erule),
- Constructed_Suffix =
- asn1ct_gen:constructed_suffix(SeqOrSetOf,
- ComponentType#type.def),
- Conttype = asn1ct_gen:get_inner(ComponentType#type.def),
+ CompType = ComponentType#type.def,
+ Constructed_Suffix = asn1ct_gen:constructed_suffix(SeqOrSetOf, CompType),
+ Conttype = asn1ct_gen:get_inner(CompType),
Currmod = get(currmod),
Imm0 = case asn1ct_gen:type(Conttype) of
{primitive,bif} ->
- asn1ct_gen_per:gen_encode_prim_imm('Comp', ComponentType, Aligned);
+ asn1ct_gen_per:gen_encode_prim_imm({var,"Comp"},
+ ComponentType, Aligned);
{constructed,bif} ->
TypeName = [Constructed_Suffix|Typename],
Enc = enc_func(asn1ct_gen:list2name(TypeName)),
@@ -577,17 +575,19 @@ gen_encode_sof_imm(Erule, Typename, SeqOrSetOf, #type{}=D) ->
[{objfun,_}|_] -> [{var,"ObjFun"}];
_ -> []
end,
- [{apply,Enc,[{var,"Comp"}|ObjArg]}];
+ [{apply,{local,Enc,CompType},
+ [{var,"Comp"}|ObjArg]}];
#'Externaltypereference'{module=Currmod,type=Ename} ->
- [{apply,enc_func(Ename),[{var,"Comp"}]}];
+ [{apply,{local,enc_func(Ename),CompType},[{var,"Comp"}]}];
#'Externaltypereference'{module=EMod,type=Ename} ->
- [{apply,{EMod,enc_func(Ename)},[{var,"Comp"}]}];
+ [{apply,{EMod,enc_func(Ename),CompType},[{var,"Comp"}]}];
'ASN1_OPEN_TYPE' ->
- asn1ct_gen_per:gen_encode_prim_imm('Comp',
+ asn1ct_gen_per:gen_encode_prim_imm({var,"Comp"},
#type{def='ASN1_OPEN_TYPE'},
Aligned)
end,
- asn1ct_imm:per_enc_sof('Val', D#type.constraint, 'Comp', Imm0, Aligned).
+ asn1ct_imm:per_enc_sof({var,"Val"}, D#type.constraint, 'Comp',
+ Imm0, Aligned).
gen_decode_sof(Erules, Typename, SeqOrSetOf, #type{}=D) ->
asn1ct_name:start(),
@@ -871,8 +871,8 @@ gen_enc_components_call1(Erule,TopType,
CanonicalNum ->
CanonicalNum
end,
- Element0 = make_element(TermNo+1, asn1ct_gen:mk_var(asn1ct_name:curr(val))),
- {Imm0,Element} = asn1ct_imm:enc_bind_var(Element0),
+ Val = make_var(val),
+ {Imm0,Element} = asn1ct_imm:enc_element(TermNo+1, Val),
Imm1 = gen_enc_line_imm(Erule, TopType, Cname, Type, Element, DynamicEnc, Ext),
Category = case {Prop,Ext} of
{'OPTIONAL',_} ->
@@ -967,9 +967,9 @@ gen_enc_line_imm_1(Erule, TopType, Cname, Type, Element, DynamicEnc) ->
CurrMod = get(currmod),
case asn1ct_gen:type(Atype) of
#'Externaltypereference'{module=CurrMod,type=EType} ->
- [{apply,enc_func(EType),[{expr,Element}]}];
+ [{apply,{local,enc_func(EType),Atype},[Element]}];
#'Externaltypereference'{module=Mod,type=EType} ->
- [{apply,{Mod,enc_func(EType)},[{expr,Element}]}];
+ [{apply,{Mod,enc_func(EType),Atype},[Element]}];
{primitive,bif} ->
asn1ct_gen_per:gen_encode_prim_imm(Element, Type, Aligned);
'ASN1_OPEN_TYPE' ->
@@ -988,9 +988,9 @@ gen_enc_line_imm_1(Erule, TopType, Cname, Type, Element, DynamicEnc) ->
Enc = enc_func(asn1ct_gen:list2name(NewTypename)),
case {Type#type.tablecinf,DynamicEnc} of
{[{objfun,_}|_R],{_,EncFun}} ->
- [{apply,Enc,[{expr,Element},{var,EncFun}]}];
+ [{apply,{local,Enc,Type},[Element,EncFun]}];
_ ->
- [{apply,Enc,[{expr,Element}]}]
+ [{apply,{local,Enc,Type},[Element]}]
end
end
end.
@@ -1014,13 +1014,16 @@ enc_var_type_call(Erule, Name, RestFieldNames,
{_,Key,Code} <- ObjSet1],
ObjSet = lists:sort([P || {_,B}=P <- ObjSet2, B =/= none]),
Key = erlang:md5(term_to_binary({encode,ObjSet,RestFieldNames,Extensible})),
+ Imm = enc_objset_imm(Erule, Name, ObjSet, RestFieldNames, Extensible),
+ Lambda = {lambda,[{var,"Val"},{var,"Id"}],Imm},
Gen = fun(_Fd, N) ->
- enc_objset(Erule, Name, N, ObjSet,
- RestFieldNames, Extensible)
+ Aligned = is_aligned(Erule),
+ emit([{asis,N},"(Val, Id) ->",nl]),
+ asn1ct_imm:enc_cg(Imm, Aligned),
+ emit([".",nl])
end,
Prefix = lists:concat(["enc_os_",Name]),
- F = asn1ct_func:call_gen(Prefix, Key, Gen),
- [{apply,F,[{var,atom_to_list(Val)},{var,Fun}]}].
+ [{call_gen,Prefix,Key,Gen,Lambda,[Val,Fun]}].
fix_object_code(Name, [{Name,B}|_], _ClassFields) ->
B;
@@ -1042,9 +1045,7 @@ fix_object_code(Name, [], ClassFields) ->
end
end.
-
-enc_objset(Erule, Component, Name, ObjSet, RestFieldNames, Extensible) ->
- asn1ct_name:start(),
+enc_objset_imm(Erule, Component, ObjSet, RestFieldNames, Extensible) ->
Aligned = is_aligned(Erule),
E = {error,
fun() ->
@@ -1053,22 +1054,19 @@ enc_objset(Erule, Component, Name, ObjSet, RestFieldNames, Extensible) ->
"{value,Val},"
"{unique_name_and_value,'_'}})",nl])
end},
- Imm = [{'cond',
- [[{eq,{var,"Id"},Key}|
- enc_obj(Erule, Obj, RestFieldNames, Aligned)] ||
- {Key,Obj} <- ObjSet] ++
- [['_',case Extensible of
- false -> E;
- true -> {put_bits,{var,"Val"},binary,[1]}
- end]]}],
- emit([{asis,Name},"(Val, Id) ->",nl]),
- asn1ct_imm:enc_cg(Imm, Aligned),
- emit([".",nl]).
+ [{'cond',
+ [[{eq,{var,"Id"},Key}|
+ enc_obj(Erule, Obj, RestFieldNames, Aligned)] ||
+ {Key,Obj} <- ObjSet] ++
+ [['_',case Extensible of
+ false -> E;
+ true -> {put_bits,{var,"Val"},binary,[1]}
+ end]]}].
enc_obj(Erule, Obj, RestFieldNames0, Aligned) ->
case Obj of
#typedef{name={primitive,bif},typespec=Def} ->
- asn1ct_gen_per:gen_encode_prim_imm('Val', Def, Aligned);
+ asn1ct_gen_per:gen_encode_prim_imm({var,"Val"}, Def, Aligned);
#typedef{name={constructed,bif},typespec=Def} ->
InnerType = asn1ct_gen:get_inner(Def#type.def),
case InnerType of
@@ -1084,7 +1082,7 @@ enc_obj(Erule, Obj, RestFieldNames0, Aligned) ->
gen_encode_sof_imm(Erule, name, InnerType, Def)
end;
#typedef{name=Type} ->
- [{apply,enc_func(Type),[{var,"Val"}]}];
+ [{apply,{local,enc_func(Type),Type},[{var,"Val"}]}];
#'Externalvaluereference'{module=Mod,value=Value} ->
case asn1_db:dbget(Mod, Value) of
#typedef{typespec=#'Object'{def=Def}} ->
@@ -1097,9 +1095,9 @@ enc_obj(Erule, Obj, RestFieldNames0, Aligned) ->
Func = enc_func(Type),
case get(currmod) of
Mod ->
- [{apply,Func,[{var,"Val"}]}];
+ [{apply,{local,Func,Obj},[{var,"Val"}]}];
_ ->
- [{apply,{Mod,Func},[{var,"Val"}]}]
+ [{apply,{Mod,Func,Obj},[{var,"Val"}]}]
end
end.
@@ -1540,12 +1538,12 @@ gen_enc_choices([H|T], Erule, TopType, Pos, Constr, Ext) ->
no ->
case Type#type.tablecinf of
[{objfun,_}|_] ->
- {"got objfun through args","ObjFun"};
+ {"got objfun through args",{var,"ObjFun"}};
_ ->
false
end;
_ ->
- {no_attr,"ObjFun"}
+ {no_attr,{var,"ObjFun"}}
end,
DoExt = case Constr of
ext -> Ext;
@@ -1561,7 +1559,7 @@ gen_enc_choices([H|T], Erule, TopType, Pos, Constr, Ext) ->
[{put_bits,0,1,[1]}|
asn1ct_imm:per_enc_integer(Pos, Constr, Aligned)]
end,
- Body = gen_enc_line_imm(Erule, TopType, Cname, Type, 'ChoiceVal',
+ Body = gen_enc_line_imm(Erule, TopType, Cname, Type, {var,"ChoiceVal"},
EncObj, DoExt),
Imm = Tag ++ Body,
[{Cname,Imm}|gen_enc_choices(T, Erule, TopType, Pos+1, Constr, Ext)];
@@ -1778,3 +1776,13 @@ value_match1(Value,[],Acc,Depth) ->
Acc ++ Value ++ lists:concat(lists:duplicate(Depth,")"));
value_match1(Value,[{VI,_}|VIs],Acc,Depth) ->
value_match1(Value,VIs,Acc++lists:concat(["element(",VI,","]),Depth+1).
+
+enc_dig_out_value([], Value) ->
+ {[],Value};
+enc_dig_out_value([{N,_}|T], Value) ->
+ {Imm0,Dst0} = enc_dig_out_value(T, Value),
+ {Imm,Dst} = asn1ct_imm:enc_element(N, Dst0),
+ {Imm0++Imm,Dst}.
+
+make_var(Base) ->
+ {var,atom_to_list(asn1ct_gen:mk_var(asn1ct_name:curr(Base)))}.
diff --git a/lib/asn1/src/asn1ct_func.erl b/lib/asn1/src/asn1ct_func.erl
index dbadedb683..33f998722a 100644
--- a/lib/asn1/src/asn1ct_func.erl
+++ b/lib/asn1/src/asn1ct_func.erl
@@ -48,7 +48,7 @@ need(MFA) ->
call_gen(Prefix, Key, Gen, Args) when is_function(Gen, 2) ->
F = req({gen_func,Prefix,Key,Gen}),
- asn1ct_gen:emit([F,"(",call_args(Args, ""),")"]).
+ asn1ct_gen:emit([{asis,F},"(",call_args(Args, ""),")"]).
call_gen(Prefix, Key, Gen) when is_function(Gen, 2) ->
req({gen_func,Prefix,Key,Gen}).
diff --git a/lib/asn1/src/asn1ct_gen.erl b/lib/asn1/src/asn1ct_gen.erl
index 30d337635b..37b33194d0 100644
--- a/lib/asn1/src/asn1ct_gen.erl
+++ b/lib/asn1/src/asn1ct_gen.erl
@@ -23,6 +23,7 @@
-export([demit/1,
emit/1,
+ open_output_file/1,close_output_file/0,
get_inner/1,type/1,def_to_tag/1,prim_bif/1,
list2name/1,
list2rname/1,
@@ -70,8 +71,7 @@ pgen_module(OutFile,Erules,Module,
HrlGenerated = pgen_hrl(Erules,Module,TypeOrVal,Options,Indent),
asn1ct_name:start(),
ErlFile = lists:concat([OutFile,".erl"]),
- Fid = fopen(ErlFile),
- put(gen_file_out,Fid),
+ open_output_file(ErlFile),
asn1ct_func:start_link(),
gen_head(Erules,Module,HrlGenerated),
pgen_exports(Erules,Module,TypeOrVal),
@@ -85,9 +85,9 @@ pgen_module(OutFile,Erules,Module,
"%%%",nl,
"%%% Run-time functions.",nl,
"%%%",nl]),
- asn1ct_func:generate(Fid),
- file:close(Fid),
- _ = erase(gen_file_out),
+ Fd = get(gen_file_out),
+ asn1ct_func:generate(Fd),
+ close_output_file(),
_ = erase(outfile),
asn1ct:verbose("--~p--~n",[{generated,ErlFile}],Options).
@@ -1121,8 +1121,7 @@ pgen_info() ->
open_hrl(OutFile,Module) ->
File = lists:concat([OutFile,".hrl"]),
- Fid = fopen(File),
- put(gen_file_out,Fid),
+ open_output_file(File),
gen_hrlhead(Module).
%% EMIT functions ************************
@@ -1195,15 +1194,19 @@ call_args([A|As], Sep) ->
[Sep,do_emit(A)|call_args(As, ", ")];
call_args([], _) -> [].
-fopen(F) ->
+open_output_file(F) ->
case file:open(F, [write,raw,delayed_write]) of
- {ok, Fd} ->
+ {ok,Fd} ->
+ put(gen_file_out, Fd),
Fd;
{error, Reason} ->
io:format("** Can't open file ~p ~n", [F]),
exit({error,Reason})
end.
+close_output_file() ->
+ ok = file:close(erase(gen_file_out)).
+
pgen_hrl(Erules,Module,TypeOrVal,Options,_Indent) ->
put(currmod,Module),
{Types,Values,Ptypes,_,_,_} = TypeOrVal,
@@ -1226,8 +1229,7 @@ pgen_hrl(Erules,Module,TypeOrVal,Options,_Indent) ->
0 ->
0;
Y ->
- Fid = get(gen_file_out),
- file:close(Fid),
+ close_output_file(),
asn1ct:verbose("--~p--~n",
[{generated,lists:concat([get(outfile),".hrl"])}],
Options),
diff --git a/lib/asn1/src/asn1ct_gen_per.erl b/lib/asn1/src/asn1ct_gen_per.erl
index 8b999ddbf0..7ba649c874 100644
--- a/lib/asn1/src/asn1ct_gen_per.erl
+++ b/lib/asn1/src/asn1ct_gen_per.erl
@@ -99,7 +99,7 @@ gen_encode_user(Erules,D) when is_record(D,typedef) ->
gen_encode_prim(Erules, D) ->
- Value = asn1ct_gen:mk_var(asn1ct_name:curr(val)),
+ Value = {var,atom_to_list(asn1ct_gen:mk_var(asn1ct_name:curr(val)))},
gen_encode_prim(Erules, D, Value).
gen_encode_prim(Erules, #type{}=D, Value) ->
@@ -149,10 +149,10 @@ gen_encode_prim_imm(Val, #type{def=Type0,constraint=Constraint}, Aligned) ->
case Constraint of
[#'Externaltypereference'{type=Tname}] ->
EncFunc = enc_func(Tname),
- Imm = [{apply,EncFunc,[{expr,Val}]}],
+ Imm = [{apply,{local,EncFunc,[]},[Val]}],
asn1ct_imm:per_enc_open_type(Imm, Aligned);
[] ->
- Imm = [{call,erlang,iolist_to_binary,[{expr,Val}]}],
+ Imm = [{call,erlang,iolist_to_binary,[Val]}],
asn1ct_imm:per_enc_open_type(Imm, Aligned)
end
end.
diff --git a/lib/asn1/src/asn1ct_imm.erl b/lib/asn1/src/asn1ct_imm.erl
index 047156fc10..c14f0b889f 100644
--- a/lib/asn1/src/asn1ct_imm.erl
+++ b/lib/asn1/src/asn1ct_imm.erl
@@ -36,7 +36,7 @@
per_enc_small_number/2]).
-export([per_enc_extension_bit/2,per_enc_extensions/4,per_enc_optional/3]).
-export([per_enc_sof/5]).
--export([enc_absent/3,enc_append/1,enc_bind_var/1]).
+-export([enc_absent/3,enc_append/1,enc_element/2]).
-export([enc_cg/2]).
-export([optimize_alignment/1,optimize_alignment/2,
dec_slim_cg/2,dec_code_gen/2]).
@@ -256,33 +256,25 @@ per_enc_k_m_string(Val0, StringType, Constraint, Aligned) ->
B ++ [{call,erlang,length,[Val],Len},Enc]
end ++ per_enc_length(Bin, Unit, Len, SzConstraint, Aligned, k_m_string).
-per_enc_open_type([], Aligned) ->
- [{put_bits,1,8,unit(1, Aligned)},{put_bits,0,8,[1]}];
-per_enc_open_type([{'cond',
- [['_',
- {put_bits,0,0,_},
- {call,per_common,encode_unconstrained_number,_}=Call]]}],
- Aligned) ->
- %% 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], []),
- ToBin = {erlang,iolist_to_binary},
- Imm ++ per_enc_open_type(Dst, ToBin, Aligned);
-per_enc_open_type([{call,erlang,iolist_to_binary,Args}], Aligned) ->
- {_,[_,Bin,Len]} = mk_vars('dummy', [bin,len]),
- [{call,erlang,iolist_to_binary,Args,Bin},
- {call,erlang,byte_size,[Bin],Len}|per_enc_length(Bin, 8, Len, Aligned)];
per_enc_open_type(Imm0, Aligned) ->
- try
- {Prefix,Imm1} = split_off_nonbuilding(Imm0),
- Prefix ++ enc_open_type(Imm1, Aligned)
- catch
- throw:impossible ->
- {Dst,Imm} = per_enc_open_type_output(Imm0, []),
- ToBin = {enc_mod(Aligned),complete},
- Imm ++ per_enc_open_type(Dst, ToBin, Aligned)
- end.
+ Imm = case Aligned of
+ true ->
+ %% Temporarily make the implicit 'align' done by
+ %% complete/1 explicit to facilitate later
+ %% optimizations: the absence of 'align' can be used
+ %% as an indication that complete/1 can be replaced
+ %% with a cheaper operation such as
+ %% iolist_to_binary/1. The redundant 'align' will be
+ %% optimized away later.
+ Imm0 ++ [{put_bits,0,0,[1,align]}];
+ false ->
+ Imm0
+ end,
+ {[],[[],Val,Len,Bin]} = mk_vars([], [output,len,bin]),
+ [{list,Imm,Val},
+ {call,enc_mod(Aligned),complete,[Val],Bin},
+ {call,erlang,byte_size,[Bin],Len}|
+ per_enc_length(Bin, 8, Len, Aligned)].
per_enc_octet_string(Val0, Constraint0, Aligned) ->
{B,[Val,Bin,Len]} = mk_vars(Val0, [bin,len]),
@@ -316,28 +308,27 @@ 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) ->
- Val1 = lists:concat(["element(",Pos,", ",Val0,")"]),
- {B,[Val]} = mk_vars(Val1, []),
+ {B,Val} = enc_element(Pos, Val0),
Zero = {put_bits,0,1,[1]},
One = {put_bits,1,1,[1]},
B++[{'cond',
[[{eq,Val,DefVal},Zero] || DefVal <- DefVals] ++ [['_',One]]}];
per_enc_optional(Val0, {Pos,{call,M,F,A}}, _Aligned) when is_integer(Pos) ->
- Val1 = lists:concat(["element(",Pos,", ",Val0,")"]),
- {B,[Val,Tmp]} = mk_vars(Val1, [tmp]),
+ {B,Val} = enc_element(Pos, Val0),
+ {[],[[],Tmp]} = mk_vars([], [tmp]),
Zero = {put_bits,0,1,[1]},
One = {put_bits,1,1,[1]},
B++[{call,M,F,[Val|A],Tmp},
{'cond',
[[{eq,Tmp,true},Zero],['_',One]]}];
per_enc_optional(Val0, Pos, _Aligned) when is_integer(Pos) ->
- Val1 = lists:concat(["element(",Pos,", ",Val0,")"]),
- {B,[Val]} = mk_vars(Val1, []),
+ {B,Val} = enc_element(Pos, Val0),
Zero = {put_bits,0,1,[1]},
One = {put_bits,1,1,[1]},
B++[{'cond',[[{eq,Val,asn1_NOVALUE},Zero],
@@ -391,20 +382,22 @@ enc_append([H|T]) ->
[{block,H}|enc_append(T)];
enc_append([]) -> [].
-enc_bind_var(Val) ->
- {B,[{var,Var}]} = mk_vars(Val, []),
- {B,list_to_atom(Var)}.
+enc_element(N, Val0) ->
+ {[],[Val,Dst]} = mk_vars(Val0, [element]),
+ {[{call,erlang,element,[N,Val],Dst}],Dst}.
enc_cg(Imm0, false) ->
Imm1 = enc_cse(Imm0),
- Imm = enc_pre_cg(Imm1),
+ Imm2 = enc_pre_cg(Imm1),
+ Imm = enc_opt(Imm2),
enc_cg(Imm);
enc_cg(Imm0, true) ->
Imm1 = enc_cse(Imm0),
Imm2 = enc_hoist_align(Imm1),
Imm3 = enc_opt_al(Imm2),
Imm4 = per_fixup(Imm3),
- Imm = enc_pre_cg(Imm4),
+ Imm5 = enc_pre_cg(Imm4),
+ Imm = enc_opt(Imm5),
enc_cg(Imm).
%%%
@@ -972,11 +965,11 @@ 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({'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.
@@ -986,17 +979,13 @@ mk_vars(Input0, Temps) ->
Curr = asn1ct_name:curr(enc),
[H|T] = atom_to_list(Curr),
Base = [H - ($a - $A)|T ++ "@"],
- if
- is_atom(Input0) ->
- Input = {var,atom_to_list(Input0)},
- {[],[Input|mk_vars_1(Base, Temps)]};
- is_integer(Input0) ->
+ case Input0 of
+ {var,Name} when is_list(Name) ->
{[],[Input0|mk_vars_1(Base, Temps)]};
- Input0 =:= [] ->
+ [] ->
{[],[Input0|mk_vars_1(Base, Temps)]};
- true ->
- Input = mk_var(Base, input),
- {[{assign,Input,Input0}],[Input|mk_vars_1(Base, Temps)]}
+ _ when is_integer(Input0) ->
+ {[],[Input0|mk_vars_1(Base, Temps)]}
end.
mk_vars_1(Base, Vars) ->
@@ -1143,8 +1132,15 @@ per_enc_length(Bin, Unit, Len, {Lb,Ub}, Aligned, Type)
U = unit(Unit, Aligned, Type, Lb*Unit, Ub*Unit),
PutBits = [{put_bits,Bin,binary,U}],
build_length_cond(Prefix, [[Check|PutLen++PutBits]]);
-per_enc_length(Bin, Unit, Len, Sv, Aligned, Type) when is_integer(Sv) ->
- NumBits = Sv*Unit,
+per_enc_length(Bin, Unit0, Len, Sv, Aligned, Type) when is_integer(Sv) ->
+ NumBits = Sv*Unit0,
+ Unit = case NumBits rem 8 of
+ 0 ->
+ %% Help out the alignment optimizer.
+ 8;
+ _ ->
+ Unit0
+ end,
U = unit(Unit, Aligned, Type, NumBits, NumBits),
Pb = {put_bits,Bin,binary,U},
[{'cond',[[{eq,Len,Sv},Pb]]}].
@@ -1358,58 +1354,6 @@ opt_choice_2([_|_], _) ->
throw(impossible);
opt_choice_2([], _) -> [].
-
-%%%
-%%% Helper functions for code generation of open types.
-%%%
-
-per_enc_open_type(Val0, {ToBinMod,ToBinFunc}, Aligned) ->
- {B,[Val,Len,Bin]} = mk_vars(Val0, [len,bin]),
- B ++ [{call,ToBinMod,ToBinFunc,[Val],Bin},
- {call,erlang,byte_size,[Bin],Len}|
- per_enc_length(Bin, 8, Len, Aligned)].
-
-enc_open_type([{'cond',Cs}], Aligned) ->
- [{'cond',[[C|enc_open_type_1(Act, Aligned)] || [C|Act] <- Cs]}];
-enc_open_type(_, _) ->
- throw(impossible).
-
-enc_open_type_1([{error,_}]=Imm, _) ->
- Imm;
-enc_open_type_1(Imm, Aligned) ->
- NumBits = num_bits(Imm, 0),
- Pad = case 8 - (NumBits rem 8) of
- 8 -> [];
- Pad0 -> [{put_bits,0,Pad0,[1]}]
- end,
- NumBytes = (NumBits+7) div 8,
- enc_length(NumBytes, no, Aligned) ++ Imm ++ Pad.
-
-num_bits([{put_bits,_,N,[U|_]}|T], Sum) when is_integer(N) ->
- num_bits(T, Sum+N*U);
-num_bits([_|_], _) ->
- throw(impossible);
-num_bits([], Sum) -> Sum.
-
-per_enc_open_type_output([{apply,F,A}], Acc) ->
- Dst = output_var(),
- {Dst,lists:reverse(Acc, [{apply,F,A,{var,atom_to_list(Dst)}}])};
-per_enc_open_type_output([{call,M,F,A}], Acc) ->
- Dst = output_var(),
- {Dst,lists:reverse(Acc, [{call,M,F,A,{var,atom_to_list(Dst)}}])};
-per_enc_open_type_output([{'cond',Cs}], Acc) ->
- Dst = output_var(),
- {Dst,lists:reverse(Acc, [{'cond',Cs,{var,atom_to_list(Dst)}}])};
-per_enc_open_type_output([H|T], Acc) ->
- per_enc_open_type_output(T, [H|Acc]).
-
-output_var() ->
- asn1ct_name:new(enc),
- Curr = asn1ct_name:curr(enc),
- [H|T] = atom_to_list(Curr),
- list_to_atom([H - ($a - $A)|T ++ "@output"]).
-
-
%%%
%%% Optimize list comprehensions (SEQUENCE OF/SET OF).
%%%
@@ -1587,16 +1531,16 @@ collect_put_bits(Imm) ->
%%% the same element twice.
%%%
-enc_cse([{assign,{var,V},E}=H|T]) ->
- [H|enc_cse_1(T, E, V)];
+enc_cse([{call,erlang,element,Args,V}=H|T]) ->
+ [H|enc_cse_1(T, Args, V)];
enc_cse(Imm) -> Imm.
-enc_cse_1([{assign,Dst,E}|T], E, V) ->
- [{assign,Dst,V}|enc_cse_1(T, E, V)];
-enc_cse_1([{block,Bl}|T], E, V) ->
- [{block,enc_cse_1(Bl, E, V)}|enc_cse_1(T, E, V)];
-enc_cse_1([H|T], E, V) ->
- [H|enc_cse_1(T, E, V)];
+enc_cse_1([{call,erlang,element,Args,Dst}|T], Args, V) ->
+ [{set,V,Dst}|enc_cse_1(T, Args, V)];
+enc_cse_1([{block,Bl}|T], Args, V) ->
+ [{block,enc_cse_1(Bl, Args, V)}|enc_cse_1(T, Args, V)];
+enc_cse_1([H|T], Args, V) ->
+ [H|enc_cse_1(T, Args, V)];
enc_cse_1([], _, _) -> [].
@@ -1637,7 +1581,7 @@ enc_pre_cg_2({block,Bl0}, StL, StB) ->
enc_pre_cg_1(Bl0, StL, StB);
enc_pre_cg_2({call,_,_,_}=Imm, _, _) ->
Imm;
-enc_pre_cg_2({call_gen,_,_,_,_}=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],
@@ -1662,18 +1606,22 @@ enc_pre_cg_2({var,_}=Imm, _, _) -> Imm.
enc_make_cons({binary,H}, {binary,T}) ->
{binary,H++T};
enc_make_cons({binary,H0}, {cons,{binary,H1},T}) ->
- {cons,{binary,H0++H1},T};
+ enc_make_cons({binary,H0++H1}, T);
+enc_make_cons({binary,H}, {cons,{integer,Int},T}) ->
+ enc_make_cons({binary,H++[{put_bits,Int,8,[1]}]}, T);
enc_make_cons({integer,Int}, {binary,T}) ->
{binary,[{put_bits,Int,8,[1]}|T]};
+enc_make_cons({integer,Int}, {cons,{binary,H},T}) ->
+ enc_make_cons({binary,[{put_bits,Int,8,[1]}|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),
@@ -1681,6 +1629,562 @@ enc_pre_cg_nonbuilding({'try',Try0,{P,Succ0},Else0,Dst}, StL) ->
{'try',Try,{P,Succ},Else,Dst};
enc_pre_cg_nonbuilding(Imm, _) -> Imm.
+%%%
+%%% Optimize calls to complete/1 and surrounding code. There are
+%%% several opportunities for optimizations.
+%%%
+%%% It may be possible to replace the call to complete/1 with
+%%% something cheaper (most important for the PER back-end which has
+%%% an expensive complete/1 implementation). If we can be sure that
+%%% complete/1 will be called with an iolist (no 'align' atoms or
+%%% bitstrings in the list), we can call iolist_to_binary/1
+%%% instead. If the list may include bitstrings, we can can call
+%%% list_to_bitstring/1 (note that list_to_bitstring/1 does not accept
+%%% a binary or bitstring, so we MUST be sure that we only pass it a
+%%% list). If complete/1 is called with a binary, we can omit the
+%%% call altogether.
+%%%
+%%% A call to byte_size/1 that follows complete/1 can be eliminated
+%%% if the size of the binary produced by complete/1 can be determined
+%%% and is constant.
+%%%
+%%% The code that encodes the length descriptor (a 'cond' instruction)
+%%% for a binary produced by complete/1 can be simplified if the lower
+%%% and upper bounds for the size of the binary are known.
+%%%
+
+-record(ost,
+ {sym,
+ t
+ }).
+
+enc_opt(Imm0) ->
+ {Imm,_} = enc_opt(Imm0, #ost{sym=gb_trees:empty()}),
+ Imm.
+
+enc_opt(align, St) ->
+ {align,St#ost{t=t_align({0,7})}};
+enc_opt({apply,What,As}, St) ->
+ {{apply,What,subst_list(As, St)},St#ost{t=t_any()}};
+enc_opt({assign,_,_}=Imm, St) ->
+ {Imm,St};
+enc_opt({binary,PutBits0}, St) ->
+ PutBits = [{put_bits,subst(V, St),Sz,F} ||
+ {put_bits,V,Sz,F} <- PutBits0],
+ NumBits = lists:foldl(fun({put_bits,_,Bits,_}, Sum) ->
+ Sum+Bits
+ end, 0, PutBits),
+ {{binary,PutBits},St#ost{t=t_bitstring(NumBits)}};
+enc_opt({block,Bl0}, St0) ->
+ {Bl,St} = enc_opt(Bl0, St0),
+ {{block,Bl},St};
+enc_opt({call,binary,encode_unsigned,[Int],Bin}=Imm, St0) ->
+ Type = get_type(Int, St0),
+ St = case t_range(Type) of
+ any ->
+ set_type(Bin, t_binary(), St0);
+ {Lb0,Ub0} ->
+ Lb = bit_size(binary:encode_unsigned(Lb0)),
+ Ub = bit_size(binary:encode_unsigned(Ub0)),
+ set_type(Bin, t_binary({Lb,Ub}), St0)
+ end,
+ {Imm,St};
+enc_opt({call,erlang,bit_size,[Bin],Dst}=Imm0, St0) ->
+ Type = get_type(Bin, St0),
+ case t_range(Type) of
+ any ->
+ St1 = set_type(Bin, t_bitstring(), St0),
+ St = propagate(Dst,
+ fun(T, S) ->
+ bit_size_propagate(Bin, T, S)
+ end, St1),
+ {Imm0,St};
+ {Lb,Ub}=Range ->
+ St = set_type(Dst, t_integer(Range), St0),
+ Imm = case Lb of
+ Ub -> none;
+ _ -> Imm0
+ end,
+ {Imm,St}
+ end;
+enc_opt({call,erlang,byte_size,[Bin],Dst}=Imm0, St0) ->
+ Type = get_type(Bin, St0),
+ case t_range(Type) of
+ any ->
+ St1 = set_type(Bin, t_binary(), St0),
+ St = propagate(Dst,
+ fun(T, S) ->
+ byte_size_propagate(Bin, T, S)
+ end, St1),
+ {Imm0,St};
+ {Lb0,Ub0} ->
+ Lb = (Lb0+7) div 8,
+ Ub = (Ub0+7) div 8,
+ St = set_type(Dst, t_integer({Lb,Ub}), St0),
+ Imm = case Lb of
+ Ub -> none;
+ _ -> Imm0
+ end,
+ {Imm,St}
+ end;
+enc_opt({call,erlang,iolist_to_binary,_}=Imm, St) ->
+ {Imm,St#ost{t=t_binary()}};
+enc_opt({call,erlang,length,[List],Dst}=Imm0, St0) ->
+ St1 = propagate(Dst,
+ fun(T, S) ->
+ length_propagate(List, T, S)
+ end, St0),
+ {Imm0,St1};
+enc_opt({call,per,complete,[Data],Dst}, St0) ->
+ Type = get_type(Data, St0),
+ St = set_type(Dst, t_binary(t_range(Type)), St0),
+ case t_type(Type) of
+ binary ->
+ {{set,Data,Dst},St};
+ bitlist ->
+ %% We KNOW that list_to_bitstring/1 will construct
+ %% a binary (the number of bits is divisible by 8)
+ %% because per_enc_open_type/2 added an 'align' atom
+ %% at the end. If that 'align' atom had not been
+ %% optimized away, the type would have been 'align'
+ %% instead of 'bitlist'.
+ {{call,erlang,list_to_bitstring,[Data],Dst},St};
+ iolist ->
+ {{call,erlang,iolist_to_binary,[Data],Dst},St};
+ nil ->
+ Imm = {list,{binary,[{put_bits,0,8,[1]}]},Dst},
+ enc_opt(Imm, St0);
+ _ ->
+ {{call,per,complete,[Data],Dst},St}
+ end;
+enc_opt({call,uper,complete,[Data],Dst}, St0) ->
+ Type = get_type(Data, St0),
+ St = set_type(Dst, t_binary(t_range(Type)), St0),
+ case t_type(Type) of
+ binary ->
+ {{set,Data,Dst},St0};
+ iolist ->
+ {{call,erlang,iolist_to_binary,[Data],Dst},St};
+ nil ->
+ Imm = {list,{binary,[{put_bits,0,8,[1]}]},Dst},
+ enc_opt(Imm, St0);
+ _ ->
+ %% 'bitlist' or 'any'.
+ {{call,uper,complete,[Data],Dst},St}
+ end;
+enc_opt({call,per_common,encode_chars,[List,NumBits|_],Dst}=Imm, St0) ->
+ %% Note: Never used when NumBits =:= 8 (list_to_binary/1 will
+ %% be used instead).
+ St1 = set_type(Dst, t_bitstring(), St0),
+ St = propagate(List,
+ fun(T, S) ->
+ char_propagate(Dst, T, NumBits, S)
+ end, St1),
+ {Imm,St};
+enc_opt({call,per_common,encode_chars_16bit,[List],Dst}=Imm, St0) ->
+ St1 = set_type(Dst, t_binary(), St0),
+ St = propagate(List,
+ fun(T, S) ->
+ char_propagate(Dst, T, 16, S)
+ end, St1),
+ {Imm,St};
+enc_opt({call,per_common,encode_big_chars,[List],Dst}=Imm, St0) ->
+ St1 = set_type(Dst, t_binary(), St0),
+ St = propagate(List,
+ fun(T, S) ->
+ char_propagate(Dst, T, 32, S)
+ end, St1),
+ {Imm,St};
+enc_opt({call,per_common,encode_fragmented,[_,Unit]}=Imm, St) ->
+ T = case Unit rem 8 of
+ 0 -> t_iolist();
+ _ -> t_bitlist()
+ end,
+ {Imm,St#ost{t=T}};
+enc_opt({call,per_common,encode_unconstrained_number,_}=Imm, St) ->
+ {Imm,St#ost{t=t_iolist()}};
+enc_opt({call,per_common,bitstring_from_positions,_}=Imm, St) ->
+ {Imm,St#ost{t=t_bitstring()}};
+enc_opt({call,per_common,to_named_bitstring,_}=Imm, St) ->
+ {Imm,St#ost{t=t_bitstring()}};
+enc_opt({call,_,_,_}=Imm, St) ->
+ {Imm,St#ost{t=t_any()}};
+enc_opt({call,_,_,_,_}=Imm, St) ->
+ {Imm,St#ost{t=undefined}};
+enc_opt({call_gen,N,K,F,L,As}, St) ->
+ {{call_gen,N,K,F,L,subst(As, St)},St#ost{t=t_any()}};
+enc_opt({'cond',Cs0}, St0) ->
+ case enc_opt_cs(Cs0, St0) of
+ [{'_',Imm,Type}] ->
+ {Imm,St0#ost{t=Type}};
+ [{Cond,Imm,Type0}|Cs1] ->
+ {Cs,Type} = enc_opt_cond_1(Cs1, Type0, [{Cond,Imm}]),
+ {{'cond',Cs},St0#ost{t=Type}}
+ end;
+enc_opt({cons,H0,T0}, St0) ->
+ {H,#ost{t=TypeH}=St1} = enc_opt(H0, St0),
+ {T,#ost{t=TypeT}=St} = enc_opt(T0, St1),
+ {{cons,H,T},St#ost{t=t_cons(TypeH, TypeT)}};
+enc_opt({error,_}=Imm, St) ->
+ {Imm,St#ost{t=t_any()}};
+enc_opt({integer,V}, St) ->
+ {{integer,subst(V, St)},St#ost{t=t_integer()}};
+enc_opt({lc,E0,B,C}, St) ->
+ {E,_} = enc_opt(E0, St),
+ {{lc,E,B,C},St#ost{t=t_any()}};
+enc_opt({lc,E0,B,C,Dst}, St) ->
+ {E,_} = enc_opt(E0, St),
+ {{lc,E,B,C,Dst},St#ost{t=undefined}};
+enc_opt({list,Imm0,Dst}, St0) ->
+ {Imm,#ost{t=Type}=St1} = enc_opt(Imm0, St0),
+ St = set_type(Dst, Type, St1),
+ {{list,Imm,Dst},St#ost{t=undefined}};
+enc_opt(nil, St) ->
+ {nil,St#ost{t=t_nil()}};
+enc_opt({seq,H0,T0}, St0) ->
+ {H,St1} = enc_opt(H0, St0),
+ {T,St} = enc_opt(T0, St1),
+ case {H,T} of
+ {none,_} ->
+ {T,St};
+ {{list,Imm,Data},
+ {seq,{call,per,complete,[Data],_},_}} ->
+ %% Get rid of any explicit 'align' added by per_enc_open_type/2.
+ {{seq,{list,remove_trailing_align(Imm),Data},T},St};
+ {_,_} ->
+ {{seq,H,T},St}
+ end;
+enc_opt({set,_,_}=Imm, St) ->
+ {Imm,St#ost{t=undefined}};
+enc_opt({sub,Src0,Int,Dst}, St0) ->
+ Src = subst(Src0, St0),
+ Type = get_type(Src, St0),
+ St = case t_range(Type) of
+ any ->
+ propagate(Dst,
+ fun(T, S) ->
+ set_type(Src, t_add(T, Int), S)
+ end,
+ St0);
+ {Lb,Ub} ->
+ set_type(Dst, t_integer({Lb-Int,Ub-Int}), St0)
+ end,
+ {{sub,Src,Int,Dst},St#ost{t=undefined}};
+enc_opt({'try',Try0,{P,Succ0},Else0,Dst}, St0) ->
+ {Try,_} = enc_opt(Try0, St0),
+ {Succ,_} = enc_opt(Succ0, St0),
+ {Else,_} = enc_opt(Else0, St0),
+ {{'try',Try,{P,Succ},Else,Dst},St0#ost{t=undefined}};
+enc_opt({var,_}=Imm, St) ->
+ Type = get_type(Imm, St),
+ {subst(Imm, St),St#ost{t=Type}}.
+
+remove_trailing_align({block,Bl}) ->
+ {block,remove_trailing_align(Bl)};
+remove_trailing_align({cons,H,{cons,align,nil}}) ->
+ H;
+remove_trailing_align({seq,H,T}) ->
+ {seq,H,remove_trailing_align(T)};
+remove_trailing_align(Imm) -> Imm.
+
+bit_size_propagate(Bin, Type, St) ->
+ case t_range(Type) of
+ any ->
+ St;
+ {Lb,Ub} ->
+ set_type(Bin, t_bitstring({Lb,Ub}), St)
+ end.
+
+byte_size_propagate(Bin, Type, St) ->
+ case t_range(Type) of
+ any ->
+ St;
+ {Lb,Ub} ->
+ set_type(Bin, t_binary({Lb*8,Ub*8}), St)
+ end.
+
+char_propagate(Dst, T, NumBits, St) ->
+ case t_range(T) of
+ any ->
+ St;
+ {Sz,Sz} when Sz*NumBits rem 8 =:= 0 ->
+ Bits = Sz*NumBits,
+ set_type(Dst, t_binary({Bits,Bits}), St);
+ {Lb,Ub} ->
+ Range = {Lb*NumBits,Ub*NumBits},
+ case NumBits rem 8 of
+ 0 ->
+ set_type(Dst, t_binary(Range), St);
+ _ ->
+ set_type(Dst, t_bitstring(Range), St)
+ end
+ end.
+
+length_propagate(List, Type, St) ->
+ set_type(List, t_list(t_range(Type)), St).
+
+enc_opt_cond_1([{Cond,{error,_}=Imm,_}|T], St, Acc) ->
+ enc_opt_cond_1(T, St, [{Cond,Imm}|Acc]);
+enc_opt_cond_1([{Cond,Imm,Curr0}|T], Curr1, Acc) ->
+ Curr = t_join(Curr0, Curr1),
+ enc_opt_cond_1(T, Curr, [{Cond,Imm}|Acc]);
+enc_opt_cond_1([], St, Acc) ->
+ {lists:reverse(Acc),St}.
+
+enc_opt_cs([{Cond,Imm0}|T], St0) ->
+ case eo_eval_cond(Cond, St0) of
+ false ->
+ enc_opt_cs(T, St0);
+ true ->
+ {Imm,#ost{t=Type}} = enc_opt(Imm0, St0),
+ [{'_',Imm,Type}];
+ maybe ->
+ St = update_type_info(Cond, St0),
+ {Imm,#ost{t=Type}} = enc_opt(Imm0, St),
+ [{Cond,Imm,Type}|enc_opt_cs(T, St0)]
+ end;
+enc_opt_cs([], _) -> [].
+
+eo_eval_cond('_', _) ->
+ true;
+eo_eval_cond({Op,{var,_}=Var,Val}, St) ->
+ Type = get_type(Var, St),
+ case t_range(Type) of
+ any -> maybe;
+ {_,_}=Range -> eval_cond_range(Op, Range, Val)
+ end;
+eo_eval_cond({_Op,{expr,_},_Val}, _St) -> maybe.
+
+eval_cond_range(lt, {Lb,Ub}, Val) ->
+ if
+ Ub < Val -> true;
+ Val =< Lb -> false;
+ true -> maybe
+ end;
+eval_cond_range(_Op, _Range, _Val) -> maybe.
+
+update_type_info({ult,{var,_}=Var,Val}, St) ->
+ Int = t_integer({0,Val-1}),
+ Type = t_meet(get_type(Var, St), Int),
+ set_type(Var, Type, St);
+update_type_info({lt,{var,_}=Var,Val}, St) ->
+ Int = t_integer({0,Val-1}),
+ Type = t_meet(get_type(Var, St), Int),
+ set_type(Var, Type, St);
+update_type_info({eq,{var,_}=Var,Val}, St) when is_integer(Val) ->
+ Int = t_integer(Val),
+ Type = t_meet(get_type(Var, St), Int),
+ set_type(Var, Type, St);
+update_type_info({eq,_,_}, St) ->
+ St;
+update_type_info({ge,_,_}, St) -> St.
+
+subst_list(As, St) ->
+ [subst(A, St) || A <- As].
+
+subst({var,_}=Var, St) ->
+ Type = get_type(Var, St),
+ case t_type(Type) of
+ integer ->
+ case t_range(Type) of
+ any -> Var;
+ {Val,Val} -> Val;
+ {_,_} -> Var
+ end;
+ _ ->
+ Var
+ end;
+subst(V, _St) -> V.
+
+set_type({var,Var}, {_,_}=Type, #ost{sym=Sym0}=St0) ->
+ Sym1 = gb_trees:enter(Var, Type, Sym0),
+ case gb_trees:lookup({propagate,Var}, Sym1) of
+ none ->
+ St0#ost{sym=Sym1};
+ {value,Propagate} ->
+ Sym = gb_trees:delete({propagate,Var}, Sym1),
+ St = St0#ost{sym=Sym},
+ Propagate(Type, St)
+ end.
+
+get_type({var,V}, #ost{sym=Sym}) ->
+ case gb_trees:lookup(V, Sym) of
+ none -> t_any();
+ {value,T} -> T
+ end.
+
+propagate({var,Var}, Propagate, #ost{sym=Sym0}=St) when is_function(Propagate, 2) ->
+ Sym = gb_trees:enter({propagate,Var}, Propagate, Sym0),
+ St#ost{sym=Sym}.
+
+%%%
+%%% A simple type system.
+%%%
+%%% Each type descriptions is a tuple {Type,Range}.
+%%% Type is one of the following atoms:
+%%%
+%%% Type name Description
+%%% --------- -----------
+%%% any Anything.
+%%%
+%%% align Basically iodata, but the list may contain bitstrings
+%%% and the the atom 'align'. Can be passed to complete/1
+%%% to construct a binary. Only used for aligned PER (per).
+%%%
+%%% bitstring An Erlang bitstring.
+%%%
+%%% bitlist A list that may be passed to list_to_bitstring/1 to
+%%% construct a bitstring.
+%%% NOTE: When analysing aligned PER (per), the number
+%%% of bits in the bitlist is always divisible by 8 (if
+%%% not, the type will be 'align' instead).
+%%%
+%%% binary An Erlang binary (the number of bits is divisible by 8).
+%%%
+%%% iolist An Erlang iolist.
+%%%
+%%% nil []
+%%%
+%%% integer An integer.
+%%%
+%%%
+%%% Range is one of:
+%%%
+%%% any
+%%% {LowerBound,UpperBound}
+%%%
+%%%
+
+t_align(Range) ->
+ {align,t__range(Range)}.
+
+t_any() ->
+ {any,any}.
+
+t_binary() ->
+ {binary,any}.
+
+t_binary(Range) ->
+ {binary,t__range(Range)}.
+
+t_bitlist() ->
+ {bitlist,any}.
+
+t_bitstring() ->
+ {bitstring,any}.
+
+t_bitstring(Range0) ->
+ case t__range(Range0) of
+ {Bits,Bits}=Range when Bits rem 8 =:= 0 ->
+ {binary,Range};
+ Range ->
+ {bitstring,Range}
+ end.
+
+t_add({integer,{Lb,Ub}}, N) ->
+ {integer,{Lb+N,Ub+N}}.
+
+t_cons({_,_}=T1, {_,_}=T2) ->
+ T = case {t__cons_type(T1),t__cons_type(T2)} of
+ {_,any} -> any;
+ {any,_} -> any;
+ {align,_} -> align;
+ {_,align} -> align;
+ {binary,binary} -> iolist;
+ {binary,bitstring} -> bitlist;
+ {bitstring,binary} -> bitlist;
+ {bitstring,bitstring} -> bitlist
+ end,
+ {T,t__cons_ranges(t__cons_range(T1), t__cons_range(T2))}.
+
+t_integer() ->
+ {integer,any}.
+
+t_integer(Range) ->
+ {integer,t__range(Range)}.
+
+t_iolist() ->
+ {iolist,any}.
+
+t_list(Range) ->
+ {list,t__range(Range)}.
+
+t_nil() ->
+ {nil,{0,0}}.
+
+t_meet({T1,Range1}, {T2,Range2}) ->
+ {t_meet_types(T1, T2),t_meet_ranges(Range1, Range2)}.
+
+t_meet_types(integer, integer) -> integer;
+t_meet_types(any, integer) -> integer.
+
+t_meet_ranges(any, Range) ->
+ Range;
+t_meet_ranges({Lb1,Ub1}, {Lb2,Ub2}) ->
+ if
+ Lb1 =< Ub2, Lb2 =< Ub1 ->
+ {max(Lb1, Lb2),Ub1};
+ Lb2 =< Ub1, Lb1 =< Ub2 ->
+ {max(Lb1, Lb2),Ub2}
+ end.
+
+t_join({T1,Range1}, {T2,Range2}) ->
+ T = t_join_types(lists:sort([T1,T2])),
+ Range = t_join_ranges(Range1, Range2),
+ {T,Range}.
+
+t_join_ranges({Lb1,Ub1}, {Lb2,Ub2}) ->
+ {min(Lb1, Lb2),max(Ub1, Ub2)};
+t_join_ranges(any, _) -> any;
+t_join_ranges(_, any) -> any.
+
+t_join_types([T,T]) -> T;
+t_join_types([align,any]) -> any;
+t_join_types([align,_]) -> align;
+t_join_types([any,_]) -> any;
+t_join_types([bitlist,bitstring]) -> any;
+t_join_types([bitlist,integer]) -> any;
+t_join_types([bitlist,iolist]) -> bitlist;
+t_join_types([bitlist,nil]) -> bitlist;
+t_join_types([binary,bitlist]) -> bitlist;
+t_join_types([binary,bitstring]) -> bitstring;
+t_join_types([binary,integer]) -> binary;
+t_join_types([binary,iolist]) -> iolist;
+t_join_types([binary,nil]) -> iolist;
+t_join_types([bitstring,integer]) -> any;
+t_join_types([bitstring,iolist]) -> any;
+t_join_types([bitstring,nil]) -> any;
+t_join_types([integer,_]) -> any;
+t_join_types([iolist,nil]) -> iolist.
+
+t_type({T,_}) -> T.
+
+t_range({_,Range}) -> Range.
+
+t__cons_type({align,_}) -> align;
+t__cons_type({any,_}) -> any;
+t__cons_type({binary,_}) -> binary;
+t__cons_type({bitstring,_}) -> bitstring;
+t__cons_type({bitlist,_}) -> bitstring;
+t__cons_type({integer,_}) -> binary;
+t__cons_type({iolist,_}) -> binary;
+t__cons_type({nil,_}) -> binary.
+
+t__cons_range({integer,_}) -> {8,8};
+t__cons_range({_,Range}) -> Range.
+
+t__cons_ranges({Lb1,Ub1}, {Lb2,Ub2}) ->
+ {Lb1+Lb2,Ub1+Ub2};
+t__cons_ranges(any, _) -> any;
+t__cons_ranges(_, any) -> any.
+
+t__range({Lb,Ub}=Range) when is_integer(Lb), is_integer(Ub) ->
+ Range;
+t__range(any) ->
+ any;
+t__range(Val) when is_integer(Val) ->
+ {Val,Val}.
+
%%%
%%% Code generation for encoding.
@@ -1702,19 +2206,10 @@ enc_cg(align) ->
enc_cg({apply,F0,As0}) ->
As = enc_call_args(As0, ""),
case F0 of
- {M,F} ->
- emit([{asis,M},":",{asis,F},"(",As,")"]);
- F when is_atom(F) ->
- emit([{asis,F},"(",As,")"])
- end;
-enc_cg({apply,F0,As0,Dst}) ->
- As = enc_call_args(As0, ""),
- emit([mk_val(Dst)," = "]),
- case F0 of
- {M,F} ->
- emit([{asis,M},":",{asis,F},"(",As,")"]);
- F when is_atom(F) ->
- emit([{asis,F},"(",As,")"])
+ {local,F,_} when is_atom(F) ->
+ emit([{asis,F},"(",As,")"]);
+ {M,F,_} ->
+ emit([{asis,M},":",{asis,F},"(",As,")"])
end;
enc_cg({assign,Dst0,Expr}) ->
Dst = mk_val(Dst0),
@@ -1728,15 +2223,11 @@ enc_cg({call,M,F,As0,Dst}) ->
As = [mk_val(A) || A <- As0],
emit([mk_val(Dst)," = "]),
asn1ct_func:call(M, F, As);
-enc_cg({call_gen,Prefix,Key,Gen,As0}) ->
+enc_cg({call_gen,Prefix,Key,Gen,_,As0}) ->
As = [mk_val(A) || A <- As0],
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}) ->
@@ -1752,12 +2243,17 @@ 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}) ->
Src = mk_val(Src0),
Dst = mk_val(Dst0),
emit([Dst," = ",Src," - ",Int]);
+enc_cg({set,{var,Src},{var,Dst}}) ->
+ emit([Dst," = ",Src]);
enc_cg({'try',Try,{P,Succ},Else,Dst}) ->
emit([mk_val(Dst)," = try "]),
enc_cg(Try),
@@ -1792,8 +2288,6 @@ enc_call_args([A|As], Sep) ->
[Sep,mk_val(A)|enc_call_args(As, ", ")];
enc_call_args([], _) -> [].
-enc_cg_cond([{'_',Action}]) ->
- enc_cg(Action);
enc_cg_cond(Cs) ->
emit("if "),
enc_cg_cond(Cs, ""),
@@ -1849,7 +2343,7 @@ mk_val(Other) -> {asis,Other}.
bit_string_name2pos_fun(NNL, Src) ->
{call_gen,"bit_string_name2pos_",NNL,
- fun(Fd, Name) -> gen_name2pos(Fd, Name, NNL) end,[Src]}.
+ fun(Fd, Name) -> gen_name2pos(Fd, Name, NNL) end,[],[Src]}.
gen_name2pos(Fd, Name, Names) ->
Cs0 = gen_name2pos_cs(Names, Name),
@@ -1978,19 +2472,12 @@ 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) ->
@@ -2012,6 +2499,10 @@ 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;
@@ -2038,8 +2529,12 @@ enc_opt_al({put_bits,_,N,[U]}=PutBits, Al) when is_integer(N), is_integer(Al) ->
{[PutBits],Al+N*U};
enc_opt_al({put_bits,_,binary,[U]}=PutBits, Al) when U rem 8 =:= 0 ->
{[PutBits],Al};
+enc_opt_al({set,_,_}=Imm, Al) ->
+ {[Imm],Al};
enc_opt_al({sub,_,_,_}=Imm, Al) ->
{[Imm],Al};
+enc_opt_al({'try',_,_,_,_}=Imm, Al) ->
+ {[Imm],Al};
enc_opt_al(Imm, _) ->
{[Imm],unknown}.
@@ -2063,29 +2558,25 @@ 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
@@ -2095,8 +2586,6 @@ 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]) ->
@@ -2104,14 +2593,11 @@ 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]) ->
+per_fixup([{call_gen,_,_,_,_,_}=H|T]) ->
[H|per_fixup(T)];
per_fixup([{error,_}=H|T]) ->
[H|per_fixup(T)];
@@ -2119,6 +2605,10 @@ 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]) ->
[H|per_fixup(T)];
per_fixup([{'try',Try0,{P,Succ0},Else0,Dst}|T]) ->
diff --git a/lib/asn1/src/asn1rt_nif.erl b/lib/asn1/src/asn1rt_nif.erl
index c1879e3dcf..1a44f1a27c 100644
--- a/lib/asn1/src/asn1rt_nif.erl
+++ b/lib/asn1/src/asn1rt_nif.erl
@@ -30,7 +30,7 @@
-define(ASN1_NIF_VSN,1).
load_nif() ->
- LibBaseName = "asn1_erl_nif",
+ LibBaseName = "asn1rt_nif",
PrivDir = code:priv_dir(asn1),
LibName = case erlang:system_info(build_type) of
opt ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 20:32:53 +0000