[Vala] forward déclaration

[picca <picca synchrotron-soleil Fr>]

Hello

I have a C project with two structures _HklVector and _HklMatrix in two
different files the first one is defined in the hkl-vector.h and the
second one from hkl-matrix.h

But in the first file methods depend of _HklMatrix and in the second it
depends of _HklVector. So converting this C file to vala files do not
compile. Indeed vala do not produce forward declaration.

hkl-vector.h: void hkl_vector_times_matrix(vector, matrix)
hkl-matrix.h: void hkl_matrix_times_vector(matrix, vector)

I would like to separate the two class instead of putting both in the same vala file.

Is it possible ?

Cheers

Frederic