[glib: 1/4] tutorial: Improve type safety of property usage in GObject tutorial

[Philip Withnall <pwithnall src gnome org>]

commit 61912bffb59140416e1a55461230db847d448740
Author: Philip Withnall <withnall endlessm com>
Date:   Thu Aug 29 09:12:18 2019 +0100

    tutorial: Improve type safety of property usage in GObject tutorial
    
    This means that if you compile with `-Wswitch-enum`, the compiler will
    warn you about properties which you’ve forgotten to handle in
    `set_property()` or `get_property()`.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    
    Helps: #1858

 docs/reference/gobject/tut_gobject.xml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/docs/reference/gobject/tut_gobject.xml b/docs/reference/gobject/tut_gobject.xml
index 161150ebf..e6d7923f5 100644
--- a/docs/reference/gobject/tut_gobject.xml
+++ b/docs/reference/gobject/tut_gobject.xml
@@ -465,12 +465,12 @@ ViewerFile *file = g_object_new (VIEWER_TYPE_FILE, NULL);
 /* Implementation                               */
 /************************************************/
 
-enum
+typedef enum
 {
   PROP_FILENAME = 1,
   PROP_ZOOM_LEVEL,
   N_PROPERTIES
-};
+} ViewerFileProperty;
 
 static GParamSpec *obj_properties[N_PROPERTIES] = { NULL, };
 
@@ -482,7 +482,7 @@ viewer_file_set_property (GObject      *object,
 {
   ViewerFile *self = VIEWER_FILE (object);
 
-  switch (property_id)
+  switch ((ViewerFileProperty) property_id)
     {
     case PROP_FILENAME:
       g_free (self-&gt;priv-&gt;filename);
@@ -510,7 +510,7 @@ viewer_file_get_property (GObject    *object,
 {
   ViewerFile *self = VIEWER_FILE (object);
 
-  switch (property_id)
+  switch ((ViewerFileProperty) property_id)
     {
     case PROP_FILENAME:
       g_value_set_string (value, self-&gt;priv-&gt;filename);