[vala/wip/attributes-clean: 13/21] On-demand Struct.signed

[Luca Bruno <lucabru src gnome org>]

commit 2a875599ca00cb0612c442f5eaf898e38ae7f5ff
Author: Luca Bruno <lucabru src gnome org>
Date:   Thu Jul 7 12:01:43 2011 +0200

    On-demand Struct.signed

 vala/valastruct.vala |   22 +++++++++++++---------
 1 files changed, 13 insertions(+), 9 deletions(-)
---
diff --git a/vala/valastruct.vala b/vala/valastruct.vala
index 9447971..09f7d64 100644
--- a/vala/valastruct.vala
+++ b/vala/valastruct.vala
@@ -45,6 +45,7 @@ public class Vala.Struct : TypeSymbol {
 	private bool? simple_type;
 	private int? rank;
 	private int? width;
+	private bool? signed;
 	private string marshaller_type_name;
 	private string get_value_function;
 	private string set_value_function;
@@ -115,7 +116,18 @@ public class Vala.Struct : TypeSymbol {
 		}
 	}
 
-	public bool signed { get; set; default = true; }
+	public bool signed {
+		get {
+			if (_signed == null) {
+				_signed = get_attribute_bool ("IntegerType", "signed", true);
+			}
+			return _signed;
+		}
+		set {
+			_signed = value;
+			set_attribute_bool ("IntegerType", "signed", value);
+		}
+	}
 
 	public bool has_copy_function { get; set; default = true; }
 
@@ -498,12 +510,6 @@ public class Vala.Struct : TypeSymbol {
 		}
 	}
 
-	private void process_integer_type_attribute (Attribute a) {
-		if (a.has_argument ("signed")) {
-			signed = a.get_bool ("signed");
-		}
-	}
-
 	private void process_floating_type_attribute (Attribute a) {
 		if (a.has_argument ("decimal")) {
 			decimal_floating_type = a.get_bool ("decimal");
@@ -517,8 +523,6 @@ public class Vala.Struct : TypeSymbol {
 		foreach (Attribute a in attributes) {
 			if (a.name == "CCode") {
 				process_ccode_attribute (a);
-			} else if (a.name == "IntegerType") {
-				process_integer_type_attribute (a);
 			} else if (a.name == "FloatingType") {
 				process_floating_type_attribute (a);
 			} else if (a.name == "Immutable") {