[Vala] Structured logging and source files/lines/functions

[Michael Gratton <mike vee net>]

Hi all,

I'm investigating using structured logging[0] for Geary, and it 
recommends including source file, line number and function call names 
in the logged data for latter debugging.

In C, these are set by G_DEBUG_HERE(), g_message, and so on, and 
calling those from Vala seems to include this info as advertised, I 
can't work out how to find this information in Vala for direct or 
wrapped calls to GLib.log_structured. Is it available at all? Looking a 
the compiler source, it doesn't seem to be getting set as a define at 
compile time, and I couldn't find G_STRLOC and G_STRFUNC on 
valadoc.org, but there aren't any tickets open in b.g.o for it, so I'm 
wondering if this is possible at the moment via some other means?

Also, the docs for structured logging highly recommends defining 
G_LOG_USE_STRUCTURED before including glib.h. Is there any way to do 
that in the source, or do I need to use a compiler define to be able to?

Cheers!

//Mike

[0] - <https://valadoc.org/glib-2.0/GLib.log_structured.html>

--
⊨ Michael Gratton, Percept Wrangler.
⚙ <http://mjog.vee.net/>