On Jan 13, 2013, at 7:29 PM, Brian Anderson <[email protected]> wrote:
> On 01/12/2013 10:53 PM, John Clements wrote:
>> In the file rust/src/libsyntax/syntax.rc, I see this code:
>>
>> mod print {
>> #[legacy_exports];
>> #[legacy_exports]
>> mod pp;
>> #[legacy_exports]
>> mod pprust;
>> }
>>
>> Is there any significance to the repetition of the #[legacy_exports]
>> declaration before 'mod pp;'?
>>
>> John Clements
>
> There is! Attributes can be applied either to the outside of elements or the
> inside. The first `#[legacy_exports];` is applying itself to `mod print`, as
> indicated by the semicolon, and the second to `mod pp`. These attributes were
> added by a script - a person probably wouldn't write them that way. This
> semicolon distinction is oft-maligned.
Is there really value in attributes being applied on the inside? That seems
really odd to me.
Dave
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