scanner: correctly handle structs with arrays of anon unions

This applies mainly to GValue, which is defined as:

  struct _GValue
  {
    /*< private >*/
    GType		g_type;

    /* public for GTypeValueTable methods */
    union {
      gint	v_int;
      guint	v_uint;
      glong	v_long;
      gulong	v_ulong;
      gint64      v_int64;
      guint64     v_uint64;
      gfloat	v_float;
      gdouble	v_double;
      gpointer	v_pointer;
    } data[2];
  };

Previously, the scanner did not understand the array of unions.  This
resulted in g_struct_info_get_size returning an incorrect size for
GValue (at least on 32bit systems).

Fix this by making up a separate union declaration for the GIR that can
be referenced by the array.

https://bugzilla.gnome.org/show_bug.cgi?id=657040

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/scanner/regress.h b/tests/scanner/regress.h
index f30fcd78..4afb9b06 100644
--- a/tests/scanner/regress.h
+++ b/tests/scanner/regress.h
@@ -243,6 +243,23 @@ struct _RegressTestStructD
   GPtrArray           *garray;
 };
 
+/* This one has an array of anonymous unions, inspired by GValue */
+struct RegressTestStructE
+{
+  GType some_type;
+  union {
+    gint	v_int;
+    guint	v_uint;
+    glong	v_long;
+    gulong	v_ulong;
+    gint64      v_int64;
+    guint64     v_uint64;
+    gfloat	v_float;
+    gdouble	v_double;
+    gpointer	v_pointer;
+  } some_union[2];
+};
+
 /* plain-old-data boxed types */
 typedef struct _RegressTestSimpleBoxedA RegressTestSimpleBoxedA;
 typedef struct _RegressTestSimpleBoxedB RegressTestSimpleBoxedB;