aboutsummaryrefslogtreecommitdiffstats
path: root/lib
diff options
context:
space:
mode:
authorBjörn Gustavsson <[email protected]>2013-05-31 06:58:28 +0200
committerBjörn Gustavsson <[email protected]>2013-08-26 14:04:23 +0200
commit777cf498fb8735121f99eb3bb8f1dacab47c18c3 (patch)
tree10bc9ee62006b5aad4f8314205e1c906b7eae93f /lib
parent8369dbfe5b5d70de339f9a8a84931d4ba354d6e7 (diff)
downloadotp-777cf498fb8735121f99eb3bb8f1dacab47c18c3.tar.gz
otp-777cf498fb8735121f99eb3bb8f1dacab47c18c3.tar.bz2
otp-777cf498fb8735121f99eb3bb8f1dacab47c18c3.zip
Encode SEQUENCE OF / SET OF using a list comprehension
Using a list comprehension will simplify both the code generator and the generated code. Also, if there is an ObjFun argument in the host function, the BEAM compiler will make sure it is only passed to the generated list comprehension function if it is actually used.
Diffstat (limited to 'lib')
-rw-r--r--lib/asn1/src/asn1ct_constructed_per.erl71
1 files changed, 26 insertions, 45 deletions
diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl
index d279e9697f..614512e7ea 100644
--- a/lib/asn1/src/asn1ct_constructed_per.erl
+++ b/lib/asn1/src/asn1ct_constructed_per.erl
@@ -511,11 +511,32 @@ gen_encode_sof(Erule,Typename,SeqOrSetOf,D) when is_record(D,type) ->
""
end,
gen_encode_length(Erule, SizeConstraint),
- emit({indent(3),"'enc_",asn1ct_gen:list2name(Typename),
- "_components'(Val",ObjFun,", [])"}),
- emit({nl,"].",nl}),
- gen_encode_sof_components(Erule, Typename, SeqOrSetOf, ComponentType).
-
+ emit(["[begin",nl]),
+ Constructed_Suffix =
+ asn1ct_gen:constructed_suffix(SeqOrSetOf,
+ ComponentType#type.def),
+ Conttype = asn1ct_gen:get_inner(ComponentType#type.def),
+ Currmod = get(currmod),
+ case asn1ct_gen:type(Conttype) of
+ {primitive,bif} ->
+ asn1ct_gen_per:gen_encode_prim(Erule, ComponentType, "Comp");
+ {constructed,bif} ->
+ NewTypename = [Constructed_Suffix|Typename],
+ emit(["'enc_",asn1ct_gen:list2name(NewTypename),
+ "'(Comp",ObjFun,")"]);
+ #'Externaltypereference'{module=Currmod,type=Ename} ->
+ emit(["'enc_",Ename,"'(Comp)"]);
+ #'Externaltypereference'{module=EMod,type=EType} ->
+ emit(["'",EMod,"':'enc_",EType,"'(Comp)"]);
+ 'ASN1_OPEN_TYPE' ->
+ asn1ct_gen_per:gen_encode_prim(Erule,
+ #type{def='ASN1_OPEN_TYPE'},
+ "Comp");
+ _ ->
+ emit(["'enc_",Conttype,"'(Comp)"])
+ end,
+ emit([nl,
+ "end || Comp <- Val]].",nl,nl]).
%% Logic copied from asn1_per_bin_rt2ct:encode_constrained_number
gen_encode_length(per, {Lb,Ub}) when Ub =< 65535, Lb >= 0 ->
@@ -586,46 +607,6 @@ gen_decode_length(Constraint, Erule) ->
Imm = asn1ct_imm:per_dec_length(Constraint, true, is_aligned(Erule)),
asn1ct_imm:dec_slim_cg(Imm, "Bytes").
-gen_encode_sof_components(Erule,Typename,SeqOrSetOf,Cont) ->
- {ObjFun,ObjFun_Var} =
- case Cont#type.tablecinf of
- [{objfun,_}|_R] ->
- {", ObjFun",", _"};
- _ ->
- {"",""}
- end,
- emit({"'enc_",asn1ct_gen:list2name(Typename),"_components'([]",
- ObjFun_Var,", Acc) -> lists:reverse(Acc);",nl,nl}),
- emit({"'enc_",asn1ct_gen:list2name(Typename),"_components'([H|T]",
- ObjFun,", Acc) ->",nl}),
- emit({"'enc_",asn1ct_gen:list2name(Typename),"_components'(T"}),
- emit({ObjFun,", ["}),
- %% the component encoder
- Constructed_Suffix = asn1ct_gen:constructed_suffix(SeqOrSetOf,
- Cont#type.def),
-
- Conttype = asn1ct_gen:get_inner(Cont#type.def),
- Currmod = get(currmod),
- case asn1ct_gen:type(Conttype) of
- {primitive,bif} ->
- asn1ct_gen_per:gen_encode_prim(Erule, Cont, "H");
- {constructed,bif} ->
- NewTypename = [Constructed_Suffix|Typename],
- emit({"'enc_",asn1ct_gen:list2name(NewTypename),"'(H",
- ObjFun,")",nl,nl});
- #'Externaltypereference'{module=Currmod,type=Ename} ->
- emit({"'enc_",Ename,"'(H)",nl,nl});
- #'Externaltypereference'{module=EMod,type=EType} ->
- emit({"'",EMod,"':'enc_",EType,"'(H)",nl,nl});
- 'ASN1_OPEN_TYPE' ->
- asn1ct_gen_per:gen_encode_prim(Erule,
- #type{def='ASN1_OPEN_TYPE'},
- "H");
- _ ->
- emit({"'enc_",Conttype,"'(H)",nl,nl})
- end,
- emit({" | Acc]).",nl}).
-
gen_decode_sof_components(Erule,Typename,SeqOrSetOf,Cont) ->
{ObjFun,ObjFun_Var} =
case Cont#type.tablecinf of