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This reverts commit eaf8ca41dfa4850437ad270d3897399c9358ced0.
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This reverts commit dc57404252c47520f352834ad9be45ad684f96c9.
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This is a poor man's solution that allows to build and test the
system with all files compiled to native code simply by setting
the ERL_COMPILER_OPTS environment variable. Better solutions,
like automatically setting the no_native option whenever the
compiler sees an on_load attribute, obviously exist but require
more time to implement.
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Just crash if there is an internal error.
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* Remove out-commented code
* Fix obvious typos and bad grammar
* Adhere to the conventions for when to use "%" and "%%".
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Remove blank lines between clauses; use matching instead of
is_list/1 guards.
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Stop up using asn1ct_gen:emit/1 with a tuple instead of a list.
Also remove the remaining uses of asn1ct_gen:demit/1.
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The debug option no longer serves any useful purpose.
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That will make code slightly easier to read.
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The code is not covered. The code is also not present
in the PER backend.
Here is a somewhat more formal proof that the code cannot
be reached:
asn1ct_gen_ber_bin_v2:gen_encode_user/3 calls
asn1ct_gen:gen_encode_constructed/4 where Typename is a list
of one element.
asn1ct_gen:gen_encode_constructed/4 will call
asn1ct_gen_ber_bin_v2:gen_encode/3 via asn1ct_gen:gen_types/4.
Note that if InnerType in asn1ct_gen:gen_encode_constructed/4
is 'SEQUENCE OF' or 'SET OF', Typename will be extended to a
list with two elements.
If InnerType in asn1ct_gen:gen_encode_constructed/4 is
'SET', 'SEQUENCE', or 'CHOICE', then asn1ct_gen_ber_bin_v2:gen_encode/3
will be called with the last argument being a #'ComponentType'{}.
asn1ct_gen_ber_bin_v2:gen_encode/3 will in that cause extend
Typename before calling itself recursively.
Therefore, Typename is always a list with at least two elements
when the removed code is called.
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ce431409d0daba broke generation of dialyzer suppressions
for per and uper.
While we are it, add type tests to asn1ct_func:is_used/1
to avoid similar problems in the future.
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Tags number above 16383 were not decoded correctly in
ber_decode_tag().
We could fix the problem, but there does not seem to be any need.
First, the only way that high tag numbers can be created is with
manual tagging; after 1994 manual tagging is no longer recommended.
Second, the ASN.1 playground (http://asn1-playground.oss.com) only
supports tags up to 16383 (the same is presumably true for OSS
Nokalva's other tools).
Therefore, clean up the existing code and make it an explicit
'invalid_tag' error when tags above 13383 are encountered
(instead of an implicit 'wrong_tag' error).
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The generated encode/2 and decode/2 functions can return
cryptic error messages. Consider this ASN.1 spec:
T DEFINITIONS AUTOMATIC TAGS ::=
BEGIN
S ::= SEQUENCE {
b BOOLEAN,
i INTEGER (1..100),
j INTEGER (0..7),
s OCTET STRING
}
END
In OTP 19, the error terms will look like this:
Eshell V8.2 (abort with ^G)
1> asn1ct:compile('T', [ber]).
ok
2> rr('T').
['S']
3> 'T':encode('S', #'S'{}).
{error,{asn1,{encode_boolean,undefined}}}
4> 'T':encode('S', #'S'{b=false}).
{error,{asn1,{encode_integer,undefined}}}
5> 'T':encode('S', #'S'{b=false,i=7,j=0}).
{error,{asn1,function_clause}}
Some error terms are clearer than other. In the first error
term, it is clear that the error refers to the 'b' field,
since there is only one BOOLEAN in 'S'. The second error
term could refer to either 'i' or 'j'. The last error term...
well... in this case we can infer that it must refer to 's'.
The easiest way to provide more information is to include
the stack trace with line numbers in the error term:
3> 'T':encode('S', #'S'{b=false}).
{error,{asn1,{{encode_integer,undefined},
[{'T',encode_integer,2,[{file,"T.erl"},{line,240}]},
{'T',enc_S,2,[{file,"T.erl"},{line,102}]},
{'T',encode,2,[{file,"T.erl"},{line,36}]},
{erl_eval,do_apply,6,[{file,"erl_eval.erl"},{line,674}]},
{shell,exprs,7,[{file,"shell.erl"},{line,686}]},
{shell,eval_exprs,7,[{file,"shell.erl"},{line,641}]},
{shell,eval_loop,3,[{file,"shell.erl"},{line,626}]}]}}}
By looking at the generated Erlang code, we can see that encoding
failed for 'i'.
This is an compatible change. All that the documentation says is
that the format of the error tuple is:
{error,{asn1,Description}}
With this change, Description is always a tuple:
{ErrorDescription,StackTrace}
Alternatives considered: Providing more information in the error
term itself and make sure there can be no 'function_clause', 'badarg',
or 'badmatch' exceptions. That would be possible, but it would
require a lot of work and it would increase the size of the generated
code and make it slower. Therefore, this solution was rejected.
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When an invalid value is encountered when trying to decode an
ENUMERATED, the exception can be quite verbose. Here is an actual
example from NBAP-PDU-Contents:
_ -> exit({error,{asn1,{decode_enumerated,{V4@V3,[chCode1div1,chCode2div1,chCode2div2,chCode4div1,chCode4div2,chCode4div3,chCode4div4,chCode8div1,chCode8div2,chCode8div3,chCode8div4,chCode8div5,chCode8div6,chCode8div7,chCode8div8,chCode16div1,chCode16div2,chCode16div3,chCode16div4,chCode16div5,chCode16div6,chCode16div7,chCode16div8,chCode16div9,chCode16div10,chCode16div11,chCode16div12,chCode16div13,chCode16div14,chCode16div15,chCode16div16]}}}})
Listing the possible values for an ENUMERATED when decoding fails is
not helpful and increases the code size (it would have made somewhat
more sense to list the possible values if *encoding* failed).
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To make it easier to find your way in the generated code,
add a comment about each attribute in the generated code
for SEQUENCE and SET.
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Generate slightly better error reasons when encoding of INTEGER,
ENUMERATED, or BOOLEAN fails.
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For now, do the packaging before call asn1ct_gen:pgen().
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Note that put(currmod, Mod) is not needed because it has already
been done by the caller.
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* bjorn/cuddle-with-tests:
ets_tough_SUITE: Add the gen_server behavior
ets_tough_SUITE: Remove functions that are never called
ets_SUITE: Eliminate internal exports used for spawn/apply
lists_SUITE: Run the droplast/1 test case
random_{iolist,unicode_list}: Remove unused functions
stdlib test: Eliminate export_all from re_SUITE and friends
asn1_SUITE: Make sure that there are no unused functions
Simplify running of asn1 app tests
asn1_SUITE: Remove unused functions
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Add xref_export_all/1 to make sure that all functions in the
asn1_SUITE module are actually called (directly or indirectly).
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Instead of initiating running of the app tests for asn1 from
asn1_SUITE, put the tests in asn1_app_SUITE and let it take care
of itself.
While we are it, eliminate 'export_all' in the new module and
use lists:keyfind/3 instead of lists:keysearch/3.
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In 8a39672af4d9, the testX420/1 test case is no longer run. Remove the
unused functions.
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When the 'maps' option is given, the SEQUENCE and SET types are
represented as maps instead of as records. Optional and default values
must be not be given as asn1_NOVALUE or asn1_DEFAULT in a map passed
to the M:encode/2 function; they must be omitted from the
map. Similarly, when decoding missing values will be omitted from the
map.
No .hrl files will be generated when the 'maps' options is used.
That means values in an ASN.1 module must be retrieved by calling the
appropriate function in generated module.
Since we one day hope to get rid of the options 'compact_bit_string',
'legacy_bit_string', and 'legacy_erlang_types', we will not allow them
to be combined with the 'maps' option.
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As a preparation for supporting maps in a future commit, refactor
the functions for encoding optional values.
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Most options to the code generation pass are passed through the
process dictionary. At the same time, an Erule or Erules argument
is passed to most code generation functions. The Erule argument
is only an atom indicating the encoding rules ('ber', 'per', or
'uper').
Introduce a new record #gen{} to contain code generation options
and parameters. Pass it as the Erule argument (renaming it to Gen
in functions that we will have to touch anyway). In this commit,
eliminate the use of the variable 'encoding_options' in the process
dictionary.
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asn1ct_check numbers all components in SEQUENCEs and SETs, except
for the associated sequence for INSTANCE OF. Remove this exception
so that the code generation pass can depend on SEQUENCEs being
numbered.
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Introduce helper functions to simplify and reduce the size of
gen_encode_constructed_imm/3.
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The to_encoding_order/1 function can be eliminated if we
incorporate its functionality into textual_order/2.
textual_order/2 has a workaround for TermList being longer
than OrderList. Remove the workaround, because the code
being generated would certainly be wrong (better let the compiler
crash and receive a bug report if it happens). The workaround
was not necessary to successfully compile the entire Erlang/OTP
and to run the asn1 test suite.
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As a preparation for future changes, simplify
gen_dec_constructed_imm_2/6 by breaking it apart to two
functions.
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Remove the entire asn1rt module. All functions in it were deprecated in
OTP 17.
In asn1ct, remove the deprecated functions asn1ct:encode/3 and
asn1ct:decode/3. Also remove asn1ct:encode/2, which has not been
formally deprecated but is undocumented.
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* sverker/include-erl_nif/PR-1171:
Use more correct delimiters for erl_nif.h include
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