[switch] Further unification on switch
Guy Steele
guy.steele at oracle.com
Thu Apr 19 22:14:26 UTC 2018
> On Apr 19, 2018, at 6:27 PM, Brian Goetz <brian.goetz at oracle.com> wrote:
>
>
>>
>> Can a single-statement case have a variable declaration as that statement, and what would be its scope?
>
> No, a local variable declaration is a BlockStatement (JLS 14.2), not a Statement (JLS 14.5). So you could say:
>
> case FOO -> println(3);
>
> or
>
> case FOO -> {
> int x = 4;
> println(x);
> }
>
> Of course, you don't have to ask about the scope of x.
Please ignore my previous message; I stand corrected. (I forgot about the distinction between Statement and a BlockStatement. Time for me to go home and get some supper.)
—Guy
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