generator: Add Pointer parameter type to the generator.

This allows generic "foo *bar" pointers to be passed to
library functions (not to daemon functions).

In the language bindings (except Perl) these are handled
as generic int64s with the assumption being that any
pointer can be converted to and from this.  There is room
to add specific support for some pointer types in future
by specializing the match cases.  However this is inherently
tricky because it depends on the implementation details of
other bindings (eg. to support virDomainPtr in OCaml depends
on the implementation details of the ocaml-libvirt project).

Perl is slightly different in that you have to supply a
typemap.  Again this would depend on the implementation
detail of an external library unless you supplied a generic
typemap for int64.

1 files changed, 13 insertions, 0 deletions

diff --git a/generator/generator_checks.ml b/generator/generator_checks.ml
index 34740470..0fb8ea42 100644
--- a/generator/generator_checks.ml
+++ b/generator/generator_checks.ml
@@ -129,6 +129,19 @@ let () =
       ) optargs
   ) all_functions;
 
+  (* Some parameter types not supported for daemon functions. *)
+  List.iter (
+    fun (name, (_, args, optargs), _, _, _, _, _) ->
+      let check_arg_type = function
+        | Pointer _ ->
+            failwithf "Pointer is not supported for daemon function %s."
+              name
+        | _ -> ()
+      in
+      List.iter check_arg_type args;
+      List.iter check_arg_type optargs;
+  ) daemon_functions;
+
   (* Check short descriptions. *)
   List.iter (
     fun (name, _, _, _, _, shortdesc, _) ->