[erlang-questions] Why does Dialyzer crash on this map?

Björn-Egil Dahlberg wallentin.dahlberg@REDACTED
Tue Apr 7 14:31:43 CEST 2015


Again - could you provide me with a sample code .. or at least some sort of
a clue to what you are dialyzing?

2015-04-07 14:05 GMT+02:00 Ali Sabil <ali.sabil@REDACTED>:

> Hi again,
>
> Running dialyzer shipped with 17.5 on the same code base leads now to the
> following error (17.4 works without any errors):
>
> ===> Error in dialyzing apps: Analysis failed with error:
> {function_clause,[{erl_types,t_form_to_string,
>                              [{type,36,map_field_assoc,
>                                     {type,36,atom,[]},
>                                     {type,36,term,[]}}],
>                              [{file,"erl_types.erl"},{line,4546}]},
>                   {erl_types,t_form_to_string_list,2,
>                              [{file,"erl_types.erl"},{line,4637}]},
>                   {erl_types,t_form_to_string,1,
>                              [{file,"erl_types.erl"},{line,4634}]},
>                   {erl_types,t_form_to_string_list,2,
>                              [{file,"erl_types.erl"},{line,4637}]},
>                   {erl_types,t_form_to_string,1,
>                              [{file,"erl_types.erl"},{line,4634}]},
>                   {dialyzer_contracts,contract_to_string_1,1,
>                                       [{file,"dialyzer_contracts.erl"},
>                                        {line,107}]},
>                   {dialyzer_contracts,extra_contract_warning,6,
>                                       [{file,"dialyzer_contracts.erl"},
>                                        {line,712}]},
>                   {dialyzer_contracts,picky_contract_check,7,
>                                       [{file,"dialyzer_contracts.erl"},
>                                        {line,686}]}]}
> Last messages in the log cache:
>   Reading files and computing callgraph... done in 1.21 secs
>   Removing edges... done in 0.04 secs
>
>
> On Wed, Mar 18, 2015 at 12:12 PM Björn-Egil Dahlberg <egil@REDACTED>
> wrote:
>
>> On 2015-03-18 12:01, Ali Sabil wrote:
>> > I tried to create a minimal testcase but I unfortunately haven't been
>> > able to. I was running dialyzer on a quite large code base and now
>> > even the unpatched dialyzer works without any issue after I fixed all
>> > the issues reported by dialyzer.
>>
>> Ah, well .. I suspect it was the missing clause in find_terminals and I
>> had it on a TODO somewhere. Should be included to 17.5.
>>
>> // Björn-Egil
>>
>
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