[vala] codegen: Fix preconditions

[Jürg Billeter <juergbi src gnome org>]

commit fc5d9b60abfb12ed8fee90019a622a92f994c1af
Author: Jürg Billeter <j bitron ch>
Date:   Sun Oct 10 22:30:26 2010 +0200

    codegen: Fix preconditions

 codegen/valaccodebasemodule.vala   |    2 ++
 codegen/valaccodemethodmodule.vala |   10 ++--------
 2 files changed, 4 insertions(+), 8 deletions(-)
---
diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index 564af4a..61eb626 100644
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -5416,6 +5416,8 @@ public class Vala.CCodeBaseModule : CodeGenerator {
 	public void create_postcondition_statement (Expression postcondition) {
 		var cassert = new CCodeFunctionCall (new CCodeIdentifier ("g_warn_if_fail"));
 
+		postcondition.emit (this);
+
 		cassert.add_argument (get_cvalue (postcondition));
 
 		ccode.add_expression (cassert);
diff --git a/codegen/valaccodemethodmodule.vala b/codegen/valaccodemethodmodule.vala
index 3b462c8..484e267 100644
--- a/codegen/valaccodemethodmodule.vala
+++ b/codegen/valaccodemethodmodule.vala
@@ -300,14 +300,6 @@ public class Vala.CCodeMethodModule : CCodeStructModule {
 			m.result_var.accept (this);
 		}
 
-		foreach (Expression precondition in m.get_preconditions ()) {
-			precondition.emit (this);
-		}
-
-		foreach (Expression postcondition in m.get_postconditions ()) {
-			postcondition.emit (this);
-		}
-
 		// do not declare overriding methods and interface implementations
 		if (m.is_abstract || m.is_virtual
 		    || (m.base_method == null && m.base_interface_method == null)) {
@@ -956,6 +948,8 @@ public class Vala.CCodeMethodModule : CCodeStructModule {
 	private void create_precondition_statement (CodeNode method_node, DataType ret_type, Expression precondition) {
 		var ccheck = new CCodeFunctionCall ();
 
+		precondition.emit (this);
+
 		ccheck.add_argument (get_cvalue (precondition));
 
 		if (method_node is CreationMethod) {