[erlang-bugs] Regression on match in 17.0-rc1
Anthony Ramine
n.oxyde@REDACTED
Mon Feb 3 20:19:39 CET 2014
Smallest Core sample:
module 'test' ['main'/1]
attributes []
'main'/1 =
%% Line 6
fun (_cor0) ->
case call 'io':'format' ([102|[110]]) of
<Y = X> when 'true' ->
Y
end
end
Running this through sys_core_fold triggers the bug.
--
Anthony Ramine
Le 3 févr. 2014 à 19:54, Anthony Ramine <n.oxyde@REDACTED> a écrit :
> Bug is in sys_core_fold. Culprit is probably e12b7d5331c58b41db06cadfa4af75b78b62a2b1.
>
> --
> Anthony Ramine
>
> Le 3 févr. 2014 à 19:34, José Valim <jose.valim@REDACTED> a écrit :
>
>> There is a regression in 17.0-rc1. The following code will execute io:format/2 twice:
>>
>> -module(test).
>> -export([test/0]).
>>
>> test() ->
>> X = Y = io:format(<<"foo~n">>),
>> X,
>> Y.
>>
>> I ran it with:
>>
>> $ erlc test.erl
>> $ erl -s test test
>>
>> Above is the minimum test case extracted from a more complex expression where I matched against a record:
>>
>> Value = #elixir_env{} = expr()
>>
>> Thank you,
>>
>> José Valim
>> www.plataformatec.com.br
>> Skype: jv.ptec
>> Founder and Lead Developer
>> _______________________________________________
>> erlang-bugs mailing list
>> erlang-bugs@REDACTED
>> http://erlang.org/mailman/listinfo/erlang-bugs
>
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