[erlang-bugs] Internal error in v3_kernel when doing map update on non-map

[Anthony Ramine]

https://github.com/erlang/otp/pull/264

-- 
Anthony Ramine

Le 4 mars 2014 à 09:29, Ulf Norell <ulf.norell@REDACTED> a écrit :

> -module(bug).
> f(X) -> [a, X]#{a => x}.
> 
> $ erl
> Erlang/OTP 17 [RELEASE CANDIDATE 2] [erts-6.0] [source-a74e66a] [64-bit] [smp:8:8] [async-threads:10] [hipe] [kernel-poll:false]
> 
> Eshell V6.0  (abort with ^G)
> 1> c(bug).
> Function: f/1
> bug.erl: internal error in kernel_module;
> crash reason: {badmatch,{{k_cons,[2,{file,"bug.erl"}],
>                    {k_atom,[2,{file,"bug.erl"}],a},
>                    {k_var,[],ker0}},
>            [{iset,[],
>                   [{k_var,[],ker0}],
>                   {k_cons,[2,{file,"bug.erl"}],
>                           {k_var,[2,{file,"bug.erl"}],cor0},
>                           {k_nil,[2,{file,"bug.erl"}]}},
>                   undefined}],
>            {kern,{f,1},
>                  {f,1},
>                  1,0,
>                  {set,1,16,16,8,80,48,
>                       {[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]},
>                       {{[cor0],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]}}},
>                  [],[],[],0}}}
> 
>   in function  v3_kernel:expr/3 (v3_kernel.erl, line 276)
>   in call from v3_kernel:expr/3 (v3_kernel.erl, line 307)
>   in call from v3_kernel:function/2 (v3_kernel.erl, line 152)
>   in call from lists:mapfoldl/3 (lists.erl, line 1352)
>   in call from v3_kernel:module/2 (v3_kernel.erl, line 130)
>   in call from compile:kernel_module/1 (compile.erl, line 1191)
>   in call from compile:'-internal_comp/4-anonymous-1-'/2 (compile.erl, line 290)
>   in call from compile:fold_comp/3 (compile.erl, line 308)
> bug.erl:2: Warning: function f/1 is unused
> error
> 
> / Ulf
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