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

[PAILLEAU Eric]

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.