Re: [HACKERS] Re: [COMMITTERS] pgsql: Add macros wrapping all usage of gcc's __attribute__.

2015-03-26 Thread Andres Freund
On 2015-03-26 11:27:32 -0400, Tom Lane wrote:
> Being the one complaining, I'll go do the legwork to clean this up.

Looks good, Thanks!

Greetings,

Andres Freund

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Re: [HACKERS] Re: [COMMITTERS] pgsql: Add macros wrapping all usage of gcc's __attribute__.

2015-03-26 Thread Tom Lane
Andres Freund  writes:
> On 2015-03-25 19:11:06 -0400, Tom Lane wrote:
>> I think this is a bad idea, because it's going to look like heck after
>> pgindent gets through with it.  Do we actually need decoration on the
>> function definitions?

> Hm, I guess it should not look any worse than before?

It does, because pgindent treats "pg_attribute_noreturn" differently
than it treated "__attribute__((noreturn))".  Before you'd end up
with something like

void
__attribute__((noreturn))
plpgsql_yyerror(const char *message)
{

pgindent forced the __attribute__(()) bit onto its own line, whether you
wrote it that way or not, but it doesn't look *too* awful.  But now that
becomes:

void
pg_attribute_noreturn
plpgsql_yyerror(const char *message)
{

The best you can get is to manually put the noreturn back onto the
"void" line, but you still end up with:

voidpg_attribute_noreturn
plpgsql_yyerror(const char *message)
{

So this is just ugly.  Maybe we could teach pgindent not to do that,
but I'm doubtful.

> ... That said, I see little reason
> to add the noreturn thingy to the definition and not the declaration for
> those.  It actually looks to me like there's a declaration for
> replication_yyerror, but a plain yyerror is used instead in repl_scanner.l?

Right.

Also, even in the context of extern declarations, it seems to be a lot
easier to get pgindent not to mess with your layout if
"pg_attribute_noreturn" is replaced with "pg_attribute_noreturn()".
I see no particular reason not to add parens to the macro, do you?

Being the one complaining, I'll go do the legwork to clean this up.

regards, tom lane


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[HACKERS] Re: [COMMITTERS] pgsql: Add macros wrapping all usage of gcc's __attribute__.

2015-03-26 Thread Andres Freund
On 2015-03-25 19:11:06 -0400, Tom Lane wrote:
> Andres Freund  writes:
> > Add macros wrapping all usage of gcc's __attribute__.
> 
> I noticed that this commit attached pg_attribute_noreturn not only
> to the extern declarations, but to some actual function definitions.

Unless either Oskari or I screwed up, it should just have been a 1:1
translation from previous __attribute__((noreturn)) to
pg_attribute_noreturn. I looked through the commit just now and didn't
see any new locations.

> I think this is a bad idea, because it's going to look like heck after
> pgindent gets through with it.  Do we actually need decoration on the
> function definitions?

Hm, I guess it should not look any worse than before? None of the
locations look like they've been introduced after the last pgindent
run. I only see plpgsql_yyerror, yyerror. That said, I see little reason
to add the noreturn thingy to the definition and not the declaration for
those.  It actually looks to me like there's a declaration for
replication_yyerror, but a plain yyerror is used instead in repl_scanner.l?

Greetings,

Andres Freund


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