I have the following struct:
typedef union foobar foobar;
union foobar
{ struct
{ char *bar;
}
foo;
};
This is represented in the vapi like this:
[CCode (cheader_filename = "struct.h")]
namespace StructTest
{
[CCode (cname = "foo")]
public struct Foo
{
[CCode (cname = "bar")]
public unowned string bar;
}
[CCode (cname = "foobar")]
public struct Foobar
{
[CCode (cname = "foo")]
public unowned Foo foo;
}
}
I use it like this:
var fbar = Foobar();
Memory.copy (fbar.foo.bar, "tralala", 10);
In Vala 0.13.1 this worked fine and the following code was
generated:
foobar fbar = {0};
memset (&fbar, 0, sizeof (foobar));
memcpy (fbar.foo.bar, "tralala", (gsize) 10);
However, in version 0.13.2 and beyond the following code is
generated:
foobar fbar = {0};
foobar _tmp0_;
foo _tmp1_;
const gchar* _tmp2_;
memset (&fbar, 0, sizeof (foobar));
_tmp0_ = fbar;
_tmp1_ = _tmp0_.foo;
_tmp2_ = _tmp1_.bar;
memcpy (_tmp2_, "tralala", (gsize) 10);
This fails since foo, the variable of _tmp1_ is undefined in C. I
could of course remove the [CCode (cname = "foo")] in the vapi but
that only changes the name to something else that is not known.
Is this a bug? Is there a workaround? Note that the C-code is
beyond my control, so workarounds involving changing the definition
of the struct in C will most probably not work...
Thanks,
Jan-Jaap
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