GIR

Input:

<record name="Foo" c:type="TestFoo">
  <field name="u" writable="1">
    <type name="guint" c:type="guint"/>
  </field>
  <union>
    <field name="a" writable="1">
      <array zero-terminated="0" fixed-size="2">
        <type name="int" c:type="int*"/>
      </array>
    </field>
    <field name="pad" readable="0" private="1">
      <array zero-terminated="0" fixed-size="4">
        <type name="guint" c:type="guint"/>
      </array>
    </field>
  </union>
</record>

Output:

[CCode (cheader_filename = "test.h", has_type_id = false)]
public struct Foo {
	public uint u;
	[CCode (array_length = false)]
	public weak int a[2];
}