From: Rico Tzschichholz <ricotz@ubuntu.com>
Date: Wed, 25 Nov 2020 12:29:51 +0000 (+0100)
Subject: glib-2.0: Add GLib.[S]List.is_empty() convenience methods for non-null
X-Git-Tag: 0.51.1~146
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f2a66e9853e36889049aacda354aaf85c956821;p=thirdparty%2Fvala.git

glib-2.0: Add GLib.[S]List.is_empty() convenience methods for non-null
---

diff --git a/tests/basic-types/glists.vala b/tests/basic-types/glists.vala
index 0d25e4481..869b9fda0 100644
--- a/tests/basic-types/glists.vala
+++ b/tests/basic-types/glists.vala
@@ -1,7 +1,9 @@
 void test_glist () {
 	var list = new GLib.List<string> ();
+	assert (list.is_empty ());
 	list.prepend ("foo");
 	list.prepend ("bar");
+	assert (!list.is_empty ());
 	assert (list.nth_data (1) == "foo");
 	list = null;
 
@@ -14,8 +16,10 @@ void test_glist () {
 
 void test_gslist () {
 	var list = new GLib.SList<string> ();
+	assert (list.is_empty ());
 	list.prepend ("foo");
 	list.prepend ("bar");
+	assert (!list.is_empty ());
 	assert (list.nth_data (1) == "foo");
 	list = null;
 
@@ -28,8 +32,10 @@ void test_gslist () {
 
 void test_gqueue () {
 	var queue = new GLib.Queue<string> ();
+	assert (queue.is_empty ());
 	queue.push_head ("foo");
 	queue.push_head ("bar");
+	assert (!queue.is_empty ());
 	assert (queue.peek_nth (1) == "foo");
 	queue = null;
 
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index 3ed2b2a4f..c612cc36e 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -4922,6 +4922,11 @@ namespace GLib {
 		public int position (List<G> llink);
 		public int index (G data);
 
+		[CCode (cname = "vala_g_list_is_empty")]
+		public inline bool is_empty () {
+			return (List?) this == null;
+		}
+
 		public G data;
 		public List<G> next;
 		public unowned List<G> prev;
@@ -4982,6 +4987,11 @@ namespace GLib {
 		public int position (SList<G> llink);
 		public int index (G data);
 
+		[CCode (cname = "vala_g_slist_is_empty")]
+		public inline bool is_empty () {
+			return (SList?) this == null;
+		}
+
 		public G data;
 		public SList<G> next;
 	}