[vala] gidlparser: Do not set nullable to void type

[Luca Bruno <lucabru src gnome org>]

commit c1324f492737c27552a28d0d911e74064cdfa75b
Author: Luca Bruno <lucabru src gnome org>
Date:   Thu Mar 20 22:24:27 2014 +0100

    gidlparser: Do not set nullable to void type

 vapigen/valagidlparser.vala |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/vapigen/valagidlparser.vala b/vapigen/valagidlparser.vala
index a5fc598..ee9f76a 100644
--- a/vapigen/valagidlparser.vala
+++ b/vapigen/valagidlparser.vala
@@ -2257,7 +2257,7 @@ public class Vala.GIdlParser : CodeVisitor {
                                                m.set_attribute ("DestroysInstance", true, 
m.source_reference);
                                        }
                                } else if (nv[0] == "nullable") {
-                                       if (eval (nv[1]) == "1") {
+                                       if (eval (nv[1]) == "1" && !(return_type is VoidType)) {
                                                return_type.nullable = true;
                                        }
                                } else if (nv[0] == "sentinel") {
@@ -2447,7 +2447,7 @@ public class Vala.GIdlParser : CodeVisitor {
                                                        }
                                                }
                                        } else if (nv[0] == "nullable") {
-                                               if (eval (nv[1]) == "1") {
+                                               if (eval (nv[1]) == "1" && !(param_type is VoidType)) {
                                                        param_type.nullable = true;
                                                }
                                        } else if (nv[0] == "transfer_ownership") {
@@ -2732,7 +2732,7 @@ public class Vala.GIdlParser : CodeVisitor {
                                                prop.set_attribute ("Experimental", true);
                                        }
                                } else if (nv[0] == "nullable") {
-                                       if (eval (nv[1]) == "1") {
+                                       if (eval (nv[1]) == "1" && !(prop.property_type is VoidType)) {
                                                prop.property_type.nullable = true;
                                        }
                                } else if (nv[0] == "abstract") {
@@ -3120,7 +3120,7 @@ public class Vala.GIdlParser : CodeVisitor {
                                                        p.direction = ParameterDirection.REF;
                                                }
                                        } else if (nv[0] == "nullable") {
-                                               if (eval (nv[1]) == "1") {
+                                               if (eval (nv[1]) == "1" && !(param_type is VoidType)) {
                                                        param_type.nullable = true;
                                                }
                                        } else if (nv[0] == "transfer_ownership") {