[erlang-bugs] Parser bug: if missing ", " in list between records, the first is ignored, and no parser warnings are given.

[Vlad Dumitrescu]

On Mon, Nov 17, 2014 at 4:56 PM, Robert Virding <rvirding@REDACTED> wrote:

> The obvious solution is to reinstate the need to wrap the "thing" before
> the # with parentheses when it is and expression. Then the problem would go
> away. :-)
>

Is a single variable not an expression? It would be inconsistent if only
some expressions would need parentheses!

;-)

regards,
Vlad



> Robert
>
>
> On 16 November 2014 22:12, PAILLEAU Eric <eric.pailleau@REDACTED> wrote:
>
>> Le 16/11/2014 21:54, Roland Karlsson a écrit :
>>
>>>
>>> Concatenating of two strings is an exception I assume.
>>> I am not knowledgeable enough in Erlang syntax to explain why it works.
>>> Need help of someone else.
>>>
>>
>> It is written in documentation.
>>
>> "Two adjacent string literals are concatenated into one. This is done at
>> compile-time and does not incur any runtime overhead"
>>
>> I don't fight for this syntax, I think it add more inconsistency in
>> syntax.
>>
>> By the way, this syntax only work at first expansion ,
>> this below module will never compile ...
>>
>> ---8<---------------------------------------
>> -module(test).
>>
>> -export([main/0]).
>>
>> -record(test,{a=0, b=0}).
>>
>> main() -> left()right().
>>
>> left() -> #test{2}.
>>
>> right() -> #test{a=6}.
>> ---8<---------------------------------------
>>
>>
>> "You are misunderstanding the record and tuple syntax."
>>
>> Not at all .
>>
>> Documentation says "However, record is not a true data type. Instead
>> record expressions are translated to tuple expressions during compilation. "
>>
>> Records are not existing in Erlang , only in syntax.
>>
>> my last mail on this.
>> Anyway, I will never use this syntax.
>>
>>
>>
>>
>>
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>>
>
>
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