[vala] codegen: Use separate C statements for D-Bus object registration

[Jürg Billeter <juergbi src gnome org>]

commit 13d8390153e817437e28c78956d1f6aa8d734853
Author: Jürg Billeter <j bitron ch>
Date:   Tue Dec 21 18:37:14 2010 +0100

    codegen: Use separate C statements for D-Bus object registration

 codegen/valadbusservermodule.vala  |    3 ++-
 codegen/valagdbusclientmodule.vala |    8 +++++++-
 codegen/valagdbusservermodule.vala |   13 ++++++++++++-
 3 files changed, 21 insertions(+), 3 deletions(-)
---
diff --git a/codegen/valadbusservermodule.vala b/codegen/valadbusservermodule.vala
index cb95b9b..d9acbd4 100644
--- a/codegen/valadbusservermodule.vala
+++ b/codegen/valadbusservermodule.vala
@@ -1664,7 +1664,8 @@ public class Vala.DBusServerModule : DBusClientModule {
 		}
 		cregister.add_argument (get_cvalue (path_arg));
 		cregister.add_argument (get_cvalue (obj_arg));
-		set_cvalue (expr, cregister);
+
+		ccode.add_expression (cregister);
 	}
 
 	bool type_implements_dbus_interface (ObjectTypeSymbol sym) {
diff --git a/codegen/valagdbusclientmodule.vala b/codegen/valagdbusclientmodule.vala
index 4b945f3..f81320f 100644
--- a/codegen/valagdbusclientmodule.vala
+++ b/codegen/valagdbusclientmodule.vala
@@ -300,7 +300,13 @@ public class Vala.GDBusClientModule : GDBusModule {
 			}
 		}
 
-		set_cvalue (expr, ccall);
+		var temp_var = get_temp_variable (expr.value_type, expr.value_type.value_owned);
+		var temp_ref = get_variable_cexpression (temp_var.name);
+
+		emit_temp_var (temp_var);
+
+		ccode.add_expression (new CCodeAssignment (temp_ref, ccall));
+		set_cvalue (expr, temp_ref);
 	}
 
 	string generate_dbus_signal_handler (Signal sig, ObjectTypeSymbol sym) {
diff --git a/codegen/valagdbusservermodule.vala b/codegen/valagdbusservermodule.vala
index 688b2d7..096539d 100644
--- a/codegen/valagdbusservermodule.vala
+++ b/codegen/valagdbusservermodule.vala
@@ -1139,7 +1139,18 @@ public class Vala.GDBusServerModule : GDBusClientModule {
 		cregister.add_argument (get_cvalue (ma.inner));
 		cregister.add_argument (get_cvalue (path_arg));
 		cregister.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, get_variable_cexpression ("_inner_error_")));
-		set_cvalue (expr, cregister);
+
+		if (expr.parent_node is ExpressionStatement) {
+			ccode.add_expression (cregister);
+		} else {
+			var temp_var = get_temp_variable (expr.value_type, expr.value_type.value_owned);
+			var temp_ref = get_variable_cexpression (temp_var.name);
+
+			emit_temp_var (temp_var);
+
+			ccode.add_expression (new CCodeAssignment (temp_ref, cregister));
+			set_cvalue (expr, temp_ref);
+		}
 	}
 
 	public override void generate_class_declaration (Class cl, CCodeFile decl_space) {