A typedef like the following:

typedef GSList TestSList;


Generates the following in gir:

<alias name="SList" c:type="TestSList">
  <type name="GLib.SList" c:type="GSList">
    <type name="gpointer" c:type="gpointer"/>
  </type>
</alias>


Which g-ir-compiler does not like:

Test-0.0.gir:16:50: error: The element <type> is invalid here
error parsing file Test-0.0.gir: The element <type> is invalid here


Nested types seem allowed in other places.  I suspect this is due to the special alias handling in girparser.c:start_type(), but did not know the code well enough to propose a solution.

I've attached a simple script to reproduce the problem.