[gnome-builder/wip/libide] libide: check pointer before setting property

[Christian Hergert <chergert src gnome org>]

commit f25df95b6fa483b7acf05339cd3963d7b7ecbb7d
Author: Christian Hergert <christian hergert me>
Date:   Mon Mar 16 00:00:08 2015 -0700

    libide: check pointer before setting property

 libide/ide-source-snippet-chunk.c |   20 +++++++++++++++-----
 libide/ide-source-snippet.c       |   21 +++++++++++++++------
 2 files changed, 30 insertions(+), 11 deletions(-)
---
diff --git a/libide/ide-source-snippet-chunk.c b/libide/ide-source-snippet-chunk.c
index b2ec336..f86fa23 100644
--- a/libide/ide-source-snippet-chunk.c
+++ b/libide/ide-source-snippet-chunk.c
@@ -187,15 +187,19 @@ ide_source_snippet_chunk_set_text (IdeSourceSnippetChunk *chunk,
 {
   g_return_if_fail (IDE_IS_SOURCE_SNIPPET_CHUNK (chunk));
 
-  g_free (chunk->text);
-  chunk->text = g_strdup (text);
-  g_object_notify_by_pspec (G_OBJECT (chunk), gParamSpecs[PROP_TEXT]);
+  if (chunk->text != text)
+    {
+      g_free (chunk->text);
+      chunk->text = g_strdup (text);
+      g_object_notify_by_pspec (G_OBJECT (chunk), gParamSpecs[PROP_TEXT]);
+    }
 }
 
 gboolean
 ide_source_snippet_chunk_get_text_set (IdeSourceSnippetChunk *chunk)
 {
   g_return_val_if_fail (IDE_IS_SOURCE_SNIPPET_CHUNK (chunk), FALSE);
+
   return chunk->text_set;
 }
 
@@ -204,8 +208,14 @@ ide_source_snippet_chunk_set_text_set (IdeSourceSnippetChunk *chunk,
                                        gboolean               text_set)
 {
   g_return_if_fail (IDE_IS_SOURCE_SNIPPET_CHUNK (chunk));
-  chunk->text_set = !!text_set;
-  g_object_notify_by_pspec (G_OBJECT (chunk), gParamSpecs[PROP_TEXT_SET]);
+
+  text_set = !!text_set;
+
+  if (chunk->text_set != text_set)
+    {
+      chunk->text_set = text_set;
+      g_object_notify_by_pspec (G_OBJECT (chunk), gParamSpecs[PROP_TEXT_SET]);
+    }
 }
 
 static void
diff --git a/libide/ide-source-snippet.c b/libide/ide-source-snippet.c
index 6a2a106..995e77d 100644
--- a/libide/ide-source-snippet.c
+++ b/libide/ide-source-snippet.c
@@ -154,8 +154,11 @@ ide_source_snippet_set_trigger (IdeSourceSnippet *self,
 {
   g_return_if_fail (IDE_IS_SOURCE_SNIPPET (self));
 
-  g_free (self->trigger);
-  self->trigger = g_strdup (trigger);
+  if (self->trigger != trigger)
+    {
+      g_free (self->trigger);
+      self->trigger = g_strdup (trigger);
+    }
 }
 
 const gchar *
@@ -172,8 +175,11 @@ ide_source_snippet_set_language (IdeSourceSnippet *self,
 {
   g_return_if_fail (IDE_IS_SOURCE_SNIPPET (self));
 
-  g_free (self->language);
-  self->language = g_strdup (language);
+  if (self->language != language)
+    {
+      g_free (self->language);
+      self->language = g_strdup (language);
+    }
 }
 
 const gchar *
@@ -190,8 +196,11 @@ ide_source_snippet_set_description (IdeSourceSnippet *self,
 {
   g_return_if_fail (IDE_IS_SOURCE_SNIPPET (self));
 
-  g_free (self->description);
-  self->description = g_strdup (description);
+  if (self->description != description)
+    {
+      g_free (self->description);
+      self->description = g_strdup (description);
+    }
 }
 
 static gint