Re: [Vala] valac 0.7.1 bug: Delegates are typedef'd before enums in generated C code.

[Yu Feng <rainwoodman gmail com>]

Hi Jim,

Refer to http://bugzilla.gnome.org/show_bug.cgi?id=578191


Yu


On Mon, 2009-04-27 at 15:14 -0700, Jim Nelson wrote:
> I've entered a bug in the database
> (http://bugzilla.gnome.org/show_bug.cgi?id=580513) but am posting here
> because this problem blocks me from transitioning to Vala 0.7, which I
> would like to do.
>
> In my code, a delegate returns an enum.  In valac's generated C code,
> the delegate is typedef'd before the enum, which the compiler
> obviously doesn't like.
>
> There's a twist to all of this.  It will only compile under 0.6.1 if
> the enum is in a different file as the delegate declaration (because
> the enum is declared in a separate, guarded .h file).  Even separating
> the two, this code will not compile in 0.7.1.
>
> If anyone can suggest a workaround until this is fixed, it would be
> greatly appreciated.
>
> Here's the vala code:
>
> enum TestEnum {
>     foo,
>     bar,
>     xyzzy,
> }
>
> delegate void tdelegate(TestEnum te);
>
> void main() {
> }
>
> which 0.7.1 transforms into this C code:
>
> #include <glib.h>
> #include <glib-object.h>
>
>
> #define TYPE_TEST_ENUM (test_enum_get_type ())
> // *** Next line generates error: "error: expected ‘)’ before ‘te’"
> typedef void (*tdelegate) (TestEnum te, void* user_data);
>
> typedef enum  {
>     TEST_ENUM_foo,
>     TEST_ENUM_bar,
>     TEST_ENUM_xyzzy
> } TestEnum;
>
>
>
> GType test_enum_get_type (void);
> void _main (void);
>
>
>
>
> GType test_enum_get_type (void) {
>     static GType test_enum_type_id = 0;
>     if (G_UNLIKELY (test_enum_type_id == 0)) {
>         static const GEnumValue values[] = {{TEST_ENUM_foo,
> "TEST_ENUM_foo", "foo"}, {TEST_ENUM_bar, "TEST_ENUM_bar", "bar"},
> {TEST_ENUM_xyzzy, "TEST_ENUM_xyzzy", "xyzzy"}, {0, NULL, NULL}};
>         test_enum_type_id = g_enum_register_static ("TestEnum",
> values);
>     }
>     return test_enum_type_id;
> }
>
>
> void _main (void) {
> }
>
>
> int main (int argc, char ** argv) {
>     g_type_init ();
>     _main ();
>     return 0;
> }
>
>
>
> Thanks,
>
> -- Jim Nelson
> Yorba
>
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