[vala] codegen: Add ref_sink_function_void argument to CCode

[Luca Bruno <lucabru src gnome org>]

commit e684342ffb5c5958be2f2398e73a5298c0049c75
Author: Luca Bruno <lucabru src gnome org>
Date:   Sun Aug 7 21:25:46 2011 +0200

    codegen: Add ref_sink_function_void argument to CCode

 codegen/valaccodeattribute.vala  |   19 +++++++++++++++++++
 codegen/valaccodebasemodule.vala |   22 +++++++++++++++++++---
 2 files changed, 38 insertions(+), 3 deletions(-)
---
diff --git a/codegen/valaccodeattribute.vala b/codegen/valaccodeattribute.vala
index e974064..19e3de1 100644
--- a/codegen/valaccodeattribute.vala
+++ b/codegen/valaccodeattribute.vala
@@ -163,6 +163,24 @@ public class Vala.CCodeAttribute : AttributeCache {
 		}
 	}
 
+	public bool ref_sink_function_void {
+		get {
+			if (_ref_sink_function_void == null) {
+				if (ccode != null && ccode.has_argument ("ref_sink_function_void")) {
+					_ref_sink_function_void = ccode.get_bool ("ref_sink_function_void");
+				} else {
+					var cl = (Class) sym;
+					if (cl.base_class != null) {
+						_ref_sink_function_void = CCodeBaseModule.get_ccode_ref_sink_function_void (cl.base_class);
+					} else {
+						_ref_sink_function_void = false;
+					}
+				}
+			}
+			return _ref_sink_function_void;
+		}
+	}
+
 	public string unref_function {
 		get {
 			if (!unref_function_set) {
@@ -439,6 +457,7 @@ public class Vala.CCodeAttribute : AttributeCache {
 	private string? _unref_function;
 	private bool unref_function_set;
 	private string _ref_sink_function;
+	private bool? _ref_sink_function_void;
 	private string? _copy_function;
 	private bool copy_function_set;
 	private string? _destroy_function;
diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index c189a6f..26f88ee 100644
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -3769,6 +3769,15 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 		}
 	}
 
+	bool is_ref_sink_function_void (DataType type) {
+		var cl = type.data_type as Class;
+		if (cl != null) {
+			return get_ccode_ref_sink_function_void (cl);
+		} else {
+			return false;
+		}
+	}
+
 	public virtual TargetValue? copy_value (TargetValue value, CodeNode node) {
 		var type = value.value_type;
 		var cexpr = get_cvalue_ (value);
@@ -5048,9 +5057,12 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 			if (sink_func != "") {
 				var csink = new CCodeFunctionCall (new CCodeIdentifier (sink_func));
 				csink.add_argument (result.cvalue);
-				
-				result.cvalue = csink;
-				requires_temp_value = true;
+				if (!is_ref_sink_function_void (type)) {
+					result.cvalue = csink;
+					requires_temp_value = true;
+				} else {
+					ccode.add_expression (csink);
+				}
 			} else {
 				Report.error (null, "type `%s' does not support floating references".printf (type.data_type.name));
 			}
@@ -5598,6 +5610,10 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 		return get_ccode_attribute(cl).ref_function_void;
 	}
 
+	public static bool get_ccode_ref_sink_function_void (Class cl) {
+		return get_ccode_attribute(cl).ref_sink_function_void;
+	}
+
 	public static string get_ccode_unref_function (ObjectTypeSymbol sym) {
 		return get_ccode_attribute(sym).unref_function;
 	}