On Wed, 11 Sept 2024 at 16:10, Bruce Momjian <bruce@momjian.us> wrote:
> You are right that I do mention changes specifically designed for the
> use of extensions, but there is no mention in the commit message of its
> use for extensions. In fact, I thought this was too low-level to be of
> use for extensions. However, if people feel it should be added, we have
> enough time to add it.
Another new API that is useful for extension authors is the following
one (I'm obviously biased since I'm the author, and I don't know if
there's still time):
commit 14dd0f27d7cd56ffae9ecdbe324965073d01a9ff
Author: Nathan Bossart <nathan@postgresql.org>
Date: Thu Jan 4 16:09:34 2024 -0600
Add macros for looping through a List without a ListCell.
Many foreach loops only use the ListCell pointer to retrieve the
content of the cell, like so:
ListCell *lc;
foreach(lc, mylist)
{
int myint = lfirst_int(lc);
...
}
This commit adds a few convenience macros that automatically
declare the loop variable and retrieve the current cell's contents.
This allows us to rewrite the previous loop like this:
foreach_int(myint, mylist)
{
...
}
> An interesting idea would be
> to report all function signature changes in each major release in some
> way.
I think that might be useful, but it very much depends how long that
list gets. If it gets too long I think authors will just try to
compile and only look at the ones that break for them.
