Re: [Vala] [Genie] valac 0.8.x bug with const arrays?

[Arc Riley <arcriley gmail com>]

Oops, sorry, the .c file line 134 has nothing to do with this.

I reverted back to 0.7.10 and confirmed, this code compiles fine until
0.8.0.

On Mon, May 17, 2010 at 12:17 AM, Arc Riley <arcriley gmail com> wrote:

> The following (pretty much a direct copy from http://live.gnome.org/Genie)
> worked in 0.7.10 but not 0.8.0 or 0.8.1:
>
> class Options : Object
>
>   config : static string = "config.xml"
>   version : static bool
>   license : static bool
>
>   const entries : array of OptionEntry = {
>     { "config", 'c', OptionFlags.IN_MAIN,
>       OptionArg.FILENAME, ref config,
>       "Use alternative configuration", "FILE" },
>     { "license", 'L', OptionFlags.IN_MAIN,
>       OptionArg.NONE, ref license,
>       "Print software license and exit", null },
>     { "version", 'V', OptionFlags.IN_MAIN,
>       OptionArg.NONE, ref version,
>       "Print version information and exit", null },
>     {null} }
>
> init
>
>   // parse args to options
>   var options = new Options ()
>
>   try
>     var opt_context = new OptionContext ("")
>     opt_context.set_help_enabled (true)
>     opt_context.add_main_entries (options.entries, null)
>     opt_context.parse (ref args)
>
>   except e:OptionError
>     return
>
>
> The error that I get:
>
> [1/4] valac: src/init.gs src/sockets.gs -> build/default/src/init.c
> build/default/src/sockets.c
> [2/4] cc: build/default/src/init.c -> build/default/src/init_1.o
> default/src/init.c: In function ‘_vala_main’:
> default/src/init.c:134: warning: passing argument 1 of ‘g_free’ discards
> qualifiers from pointer target type
> /usr/include/glib-2.0/glib/gmem.h:52: note: expected ‘gpointer’ but
> argument is of type ‘const char *’
> default/src/init.c:134: warning: passing argument 1 of ‘g_free’ discards
> qualifiers from pointer target type
> /usr/include/glib-2.0/glib/gmem.h:52: note: expected ‘gpointer’ but
> argument is of type ‘const char *’
> [3/4] cc: build/default/src/sockets.c -> build/default/src/sockets_1.o
> [4/4] cc_link: build/default/src/init_1.o build/default/src/sockets_1.o ->
> build/default/src/server
> default/src/init_1.o: In function `_vala_main':
> init.c:(.text+0x83): undefined reference to `OPTIONS_entries'
> collect2: ld returned 1 exit status
>
> As you can see, it compiles (with warnings, line 134 is "{ "config", 'c',
> OptionFlags.IN_MAIN,") but fails on linking, apparently because
> Options.entries didn't get into the object file.