codegen: Support deprecating properties and their accessors

Use G_PARAM_DEPRECATED for properties and in addition their accessor
methods will be marked as deprecated.

Guard internal accessors calls with G_GNUC_BEGIN/END_IGNORED_DEPRECATIONS
to silence unavoidable warnings.

Based on patch by Simon Werbeck <simon.werbeck@gmail.com>

https://bugzilla.gnome.org/show_bug.cgi?id=732449

2 files changed, 65 insertions, 0 deletions

diff --git a/ccode/Makefile.am b/ccode/Makefile.am
index fd3186a87..0402f6269 100644
--- a/ccode/Makefile.am
+++ b/ccode/Makefile.am
@@ -40,6 +40,7 @@ libvalaccode_la_VALASOURCES = \
 	valaccodefunction.vala \
 	valaccodefunctioncall.vala \
 	valaccodefunctiondeclarator.vala \
+	valaccodeggnucsection.vala \
 	valaccodegotostatement.vala \
 	valaccodeidentifier.vala \
 	valaccodeifstatement.vala \
diff --git a/ccode/valaccodeggnucsection.vala b/ccode/valaccodeggnucsection.vala
new file mode 100644
index 000000000..deb969ce2
--- /dev/null
+++ b/ccode/valaccodeggnucsection.vala
@@ -0,0 +1,64 @@
+/* valaccodeggnucsection.vala
+ *
+ * Copyright (C) 2016  Rico Tzschichholz
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+ *
+ * Author:
+ * 	Rico Tzschichholz <ricotz@ubuntu.com>
+ */
+
+using GLib;
+
+/**
+ * Represents a section that should be processed on condition.
+ */
+public class Vala.CCodeGGnucSection : CCodeFragment {
+	/**
+	 * The expression
+	 */
+	public GGnucSectionType section_type { get; set; }
+
+	public CCodeGGnucSection (GGnucSectionType t) {
+		section_type = t;
+	}
+
+	public override void write (CCodeWriter writer) {
+		writer.write_string ("G_GNUC_BEGIN_");
+		writer.write_string (section_type.to_string ());
+		foreach (CCodeNode node in get_children ()) {
+			node.write_combined (writer);
+		}
+		writer.write_string ("G_GNUC_END_");
+		writer.write_string (section_type.to_string ());
+		writer.write_newline ();
+	}
+
+	public override void write_declaration (CCodeWriter writer) {
+	}
+}
+
+public enum Vala.GGnucSectionType {
+	IGNORE_DEPRECATIONS;
+
+	public unowned string to_string () {
+		switch (this) {
+			case IGNORE_DEPRECATIONS:
+				return "IGNORE_DEPRECATIONS";
+			default:
+				assert_not_reached ();
+		}
+	}
+}