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Add (nullable) if applicable

Browse source 
Basically this commit makes sure that all return values that are marked
as "Returns:" also have a `(nullable)` annotation if it is mentioned on
the same line that NULL can also be returned.

This will prevent a few problems in GObject-introspection.
This commit is contained in:
Niels De Graef 2019-08-03 00:36:59 +02:00 committed by Jehan
parent 1dda60154c
commit 5f92ced1f3
23 changed files with 62 additions and 57 deletions
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2
app/config/gimprc.c
View file

@ -382,7 +382,7 @@ gimp_rc_set_autosave (GimpRc *rc,
* is returned. If no property is found, the list of unknown tokens
* attached to the @rc object is searched.
*
* Returns: a newly allocated string representing the value or %NULL
* Returns: (nullable): a newly allocated string representing the value or %NULL
* if the key couldn't be found.
**/
gchar *

8
app/core/gimpcontainer.c
View file

@ -850,8 +850,8 @@ gimp_container_get_child_by_index (GimpContainer *container,
* gimp_container_get_first_child:
* @container: a #GimpContainer
*
* Returns: the first child object stored in @container or %NULL if the
* container is empty
* Returns: (nullable) (transfer none): the first child object stored in
* @container or %NULL if the container is empty.
*/
GimpObject *
gimp_container_get_first_child (GimpContainer *container)
@ -869,8 +869,8 @@ gimp_container_get_first_child (GimpContainer *container)
* gimp_container_get_last_child:
* @container: a #GimpContainer
*
* Returns: the last child object stored in @container or %NULL if the
* container is empty
* Returns: (nullable) (transfer none): the last child object stored in
* @container or %NULL if the container is empty
*/
GimpObject *
gimp_container_get_last_child (GimpContainer *container)

3
app/core/gimpdata.c
View file

@ -1134,7 +1134,8 @@ gimp_data_is_duplicatable (GimpData *data)
* copied: the newly created object is not automatically given an
* object name, file name, preview, etc.
*
* Returns: the newly created copy, or %NULL if @data cannot be copied.
* Returns: (nullable) (transfer full): the newly created copy, or %NULL if
* @data cannot be copied.
**/
GimpData *
gimp_data_duplicate (GimpData *data)

3
app/core/gimpidtable.c
View file

@ -195,7 +195,8 @@ gimp_id_table_replace (GimpIdTable *id_table, gint id, gpointer data)
*
* Lookup data based on ID.
*
* Returns: The data, or NULL if no data with the given ID was found.
* Returns: (nullable) (transfer none): The data,
* or %NULL if no data with the given ID was found.
**/
gpointer
gimp_id_table_lookup (GimpIdTable *id_table, gint id)

8
app/core/gimptag.c
View file

@ -55,8 +55,8 @@ gimp_tag_init (GimpTag *tag)
*
* If given tag name is not valid, an attempt will be made to fix it.
*
* Returns: a new #GimpTag object, or NULL if tag string is invalid and
* cannot be fixed.
* Returns: (nullable) (transfer full): a new #GimpTag object,
* or NULL if tag string is invalid and cannot be fixed.
**/
GimpTag *
gimp_tag_new (const char *tag_string)
@ -95,8 +95,8 @@ gimp_tag_new (const char *tag_string)
* unneeded comparisons. If tag is created, however, it does not mean that
* it would necessarily match with some other tag.
*
* Returns: new #GimpTag object, or NULL if tag will not match with any
* other #GimpTag.
* Returns: (nullable) (transfer full): new #GimpTag object,
* or NULL if tag will not match with any other #GimpTag.
**/
GimpTag *
gimp_tag_try_new (const char *tag_string)

12
app/core/gimpviewable.c
View file

@ -849,7 +849,7 @@ gimp_viewable_get_popup_size (GimpViewable *viewable,
* method, and executes it, caching the result. If everything fails,
* %NULL is returned.
*
* Returns: A #GimpTempBuf containing the preview image, or %NULL if
* Returns: (nullable): A #GimpTempBuf containing the preview image, or %NULL if
* none can be found or created.
**/
GimpTempBuf *
@ -912,7 +912,7 @@ gimp_viewable_get_preview (GimpViewable *viewable,
* then if that fails for a "get_preview" method. This function does
* not look for a cached preview.
*
* Returns: A #GimpTempBuf containing the preview image, or %NULL if
* Returns: (nullable): A #GimpTempBuf containing the preview image, or %NULL if
* none can be found or created.
**/
GimpTempBuf *
@ -1006,8 +1006,8 @@ gimp_viewable_get_dummy_preview (GimpViewable *viewable,
* method, and executes it, caching the result. If everything fails,
* %NULL is returned.
*
* Returns: A #GdkPixbuf containing the preview pixbuf, or %NULL if none can
* be found or created.
* Returns: (nullable): A #GdkPixbuf containing the preview pixbuf,
* or %NULL if none can be found or created.
**/
GdkPixbuf *
gimp_viewable_get_pixbuf (GimpViewable *viewable,
@ -1069,8 +1069,8 @@ gimp_viewable_get_pixbuf (GimpViewable *viewable,
* then if that fails for a "get_pixbuf" method. This function does
* not look for a cached pixbuf.
*
* Returns: A #GdkPixbuf containing the preview, or %NULL if none can
* be created.
* Returns: (nullable): A #GdkPixbuf containing the preview,
* or %NULL if none can be created.
**/
GdkPixbuf *
gimp_viewable_get_new_pixbuf (GimpViewable *viewable,

2
app/display/gimpimagewindow.c
View file

@ -1593,7 +1593,7 @@ gimp_image_window_get_first_dockbook (GimpDockColumns *columns)
* Gets the default dockbook, which is the dockbook in which new
* dockables should be put in single-window mode.
*
* Returns: The default dockbook for new dockables, or NULL if no
* Returns: (nullable): The default dockbook for new dockables, or %NULL if no
* dockbook were available.
**/
GtkWidget *

2
app/text/gimptextlayer.c
View file

@ -429,7 +429,7 @@ gimp_text_layer_convert_type (GimpLayer *layer,
*
* Creates a new text layer.
*
* Returns: a new #GimpTextLayer or %NULL in case of a problem
* Returns: (nullable): a new #GimpTextLayer or %NULL in case of a problem
**/
GimpLayer *
gimp_text_layer_new (GimpImage *image,

10
app/widgets/gimpclipboard.c
View file

@ -296,7 +296,7 @@ gimp_clipboard_has_curve (Gimp *gimp)
* The returned #GimpObject needs to be unref'ed when it's no longer
* needed.
*
* Returns: a reference to a #GimpObject or %NULL if there's no
* Returns: (nullable): a reference to a #GimpObject or %NULL if there's no
* image or buffer in the clipboard
**/
GimpObject *
@ -323,7 +323,7 @@ gimp_clipboard_get_object (Gimp *gimp)
* The returned #GimpImage needs to be unref'ed when it's no longer
* needed.
*
* Returns: a reference to a #GimpImage or %NULL if there's no
* Returns: (nullable): a reference to a #GimpImage or %NULL if there's no
* image in the clipboard
**/
GimpImage *
@ -382,7 +382,7 @@ gimp_clipboard_get_image (Gimp *gimp)
* The returned #GimpBuffer needs to be unref'ed when it's no longer
* needed.
*
* Returns: a reference to a #GimpBuffer or %NULL if there's no
* Returns: (nullable): a reference to a #GimpBuffer or %NULL if there's no
* image data
**/
GimpBuffer *
@ -448,7 +448,7 @@ gimp_clipboard_get_buffer (Gimp *gimp)
*
* The returned data needs to be freed when it's no longer needed.
*
* Returns: a reference to a #GimpBuffer or %NULL if there's no
* Returns: (nullable): a reference to a #GimpBuffer or %NULL if there's no
* image data
**/
gchar *
@ -518,7 +518,7 @@ gimp_clipboard_get_svg (Gimp *gimp,
*
* The returned curve needs to be unref'ed when it's no longer needed.
*
* Returns: a reference to a #GimpCurve or %NULL if there's no
* Returns: (nullable): a reference to a #GimpCurve or %NULL if there's no
* curve data
**/
GimpCurve *

4
libgimp/gimpimage.c
View file

@ -108,8 +108,8 @@ gimp_image_get_thumbnail_data (gint32 image_ID,
*
* Returns exif/iptc/xmp metadata from the image.
*
* Returns: (transfer full): The exif/ptc/xmp metadata, or %NULL if
* there is none.
* Returns: (nullable) (transfer full): The exif/ptc/xmp metadata,
* or %NULL if there is none.
*
* Since: 2.10
**/

2
libgimp/gimpplugin.c
View file

@ -341,7 +341,7 @@ gimp_plug_in_get_temp_procedures (GimpPlugIn *plug_in)
* This function retrieves a temporary procedure from @plug_in by the
* procedure's @name.
*
* Returns: (transfer none): The procedure if registered, or %NULL.
* Returns: (nullable) (transfer none): The procedure if registered, or %NULL.
*
* Since: 3.0
**/

2
libgimp/gimpprocbrowserdialog.c
View file

@ -284,7 +284,7 @@ gimp_proc_browser_dialog_new (const gchar *title,
*
* Retrieves the name of the currently selected procedure.
*
* Returns: The name of the selected procedure of %NULL if no
* Returns: (nullable): The name of the selected procedure of %NULL if no
* procedure is selected.
*
* Since: 2.4

2
libgimp/gimpui.c
View file

@ -204,7 +204,7 @@ gimp_ui_get_foreign_window (guint32 window)
* You shouldn't have to call this function directly. Use
* gimp_window_set_transient_for_display() instead.
*
* Returns: (transfer full): A reference to a #GdkWindow or %NULL.
* Returns: (nullable) (transfer full): A reference to a #GdkWindow or %NULL.
* You should unref the window using g_object_unref() as
* soon as you don't need it any longer.
*

12
libgimpcolor/gimpcolorprofile.c
View file

@ -167,7 +167,7 @@ gimp_color_profile_finalize (GObject *object)
*
* This function opens an ICC color profile from @file.
*
* Returns: the #GimpColorProfile, or %NULL. On error, %NULL is
* Returns: (nullable): the #GimpColorProfile, or %NULL. On error, %NULL is
* returned and @error is set.
*
* Since: 2.10
@ -272,7 +272,7 @@ gimp_color_profile_new_from_file (GFile *file,
* This function opens an ICC color profile from memory. On error,
* %NULL is returned and @error is set.
*
* Returns: the #GimpColorProfile, or %NULL.
* Returns: (nullable): the #GimpColorProfile, or %NULL.
*
* Since: 2.10
**/
@ -317,7 +317,7 @@ gimp_color_profile_new_from_icc_profile (const guint8 *data,
* @lcms_profile pointer is not retained by the created
* #GimpColorProfile.
*
* Returns: the #GimpColorProfile, or %NULL.
* Returns: (nullable): the #GimpColorProfile, or %NULL.
*
* Since: 2.10
**/
@ -1010,7 +1010,7 @@ gimp_color_profile_new_from_color_profile (GimpColorProfile *profile,
* This function creates a new RGB #GimpColorProfile with a sRGB gamma
* TRC and @profile's RGB chromacities and whitepoint.
*
* Returns: (transfer full): the new #GimpColorProfile, or %NULL if
* Returns: (nullable) (transfer full): the new #GimpColorProfile, or %NULL if
* @profile is not an RGB profile or not matrix-based.
*
* Since: 2.10
@ -1030,7 +1030,7 @@ gimp_color_profile_new_srgb_trc_from_color_profile (GimpColorProfile *profile)
* This function creates a new RGB #GimpColorProfile with a linear TRC
* and @profile's RGB chromacities and whitepoint.
*
* Returns: (transfer full): the new #GimpColorProfile, or %NULL if
* Returns: (nullable) (transfer full): the new #GimpColorProfile, or %NULL if
* @profile is not an RGB profile or not matrix-based.
*
* Since: 2.10
@ -1578,7 +1578,7 @@ gimp_color_profile_get_format (GimpColorProfile *profile,
* Note that this function currently only supports RGB, RGBA, R'G'B',
* R'G'B'A, Y, YA, Y', Y'A and the cairo-RGB24 and cairo-ARGB32 formats.
*
* Returns: the #Babl format to be used instead of @format, or %NULL
* Returns: (nullable): the #Babl format to be used instead of @format, or %NULL
* if the passed @format is not supported at all.
*
* Since: 2.10

4
libgimpcolor/gimpcolortransform.c
View file

@ -176,7 +176,7 @@ gimp_color_transform_finalize (GObject *object)
* returns a non-%NULL transform and the code takes care of doing only
* exactly the requested color transform.
*
* Returns: the #GimpColorTransform, or %NULL if there was an error.
* Returns: (nullable): the #GimpColorTransform, or %NULL if there was an error.
*
* Since: 2.10
**/
@ -306,7 +306,7 @@ gimp_color_transform_new (GimpColorProfile *src_profile,
* See gimp_color_transform_new() about the color spaces to transform
* between.
*
* Returns: the #GimpColorTransform, or %NULL if there was an error.
* Returns: (nullable): the #GimpColorTransform, or %NULL if there was an error.
*
* Since: 2.10
**/

4
libgimpcolor/gimppixbuf.c
View file

@ -123,8 +123,8 @@ gimp_pixbuf_create_buffer (GdkPixbuf *pixbuf)
* Returns the ICC profile attached to the @pixbuf, or %NULL if there
* is none.
*
* Returns: The ICC profile data, or %NULL. The value should be freed
* with g_free().
* Returns: (nullable): The ICC profile data, or %NULL.
* The value should be freed with g_free().
*
* Since: 2.10
**/

3
libgimpconfig/gimpconfig-path.c
View file

@ -442,7 +442,8 @@ gimp_config_path_unexpand (const gchar *path,
*
* To reverse the expansion, use gimp_file_get_config_path().
*
* Returns: (transfer full): a newly allocated #GFile, or %NULL if the expansion failed.
* Returns: (nullable) (transfer full): a newly allocated #GFile,
* or %NULL if the expansion failed.
*
* Since: 2.10
**/

10
libgimpconfig/gimpconfigwriter.c
View file

@ -121,7 +121,7 @@ gimp_config_writer_newline (GimpConfigWriter *writer)
* possible race conditions. The temporary file is then moved to
* @filename when the writer is closed.
*
* Returns: a new #GimpConfigWriter or %NULL in case of an error
* Returns: (nullable): a new #GimpConfigWriter or %NULL in case of an error
*
* Since: 2.4
**/
@ -158,7 +158,7 @@ gimp_config_writer_new_file (const gchar *filename,
* possible race conditions. The temporary file is then moved to @file
* when the writer is closed.
*
* Returns: a new #GimpConfigWriter or %NULL in case of an error
* Returns: (nullable): a new #GimpConfigWriter or %NULL in case of an error
*
* Since: 2.10
**/
@ -234,7 +234,7 @@ gimp_config_writer_new_gfile (GFile *file,
* Creates a new #GimpConfigWriter and sets it up to write to
* @output.
*
* Returns: a new #GimpConfigWriter or %NULL in case of an error
* Returns: (nullable): a new #GimpConfigWriter or %NULL in case of an error
*
* Since: 2.10
**/
@ -266,7 +266,7 @@ gimp_config_writer_new_stream (GOutputStream *output,
* gimp_config_writer_new_fd:
* @fd:
*
* Returns: a new #GimpConfigWriter or %NULL in case of an error
* Returns: (nullable): a new #GimpConfigWriter or %NULL in case of an error
*
* Since: 2.4
**/
@ -294,7 +294,7 @@ gimp_config_writer_new_fd (gint fd)
* gimp_config_writer_new_string:
* @string:
*
* Returns: a new #GimpConfigWriter or %NULL in case of an error
* Returns: (nullable): a new #GimpConfigWriter or %NULL in case of an error
*
* Since: 2.4
**/

2
libgimpthumb/gimpthumbnail.c
View file

@ -969,7 +969,7 @@ gimp_thumbnail_debug_notify (GObject *object,
* In order to verify if the preview is uptodate, you should check the
* "thumb_state" property after calling this function.
*
* Returns: (transfer full): a preview pixbuf or %NULL if no
* Returns: (nullable) (transfer full): a preview pixbuf or %NULL if no
* thumbnail was found
**/
GdkPixbuf *

4
libgimpwidgets/gimpnumberpairentry.c
View file

@ -650,8 +650,8 @@ gimp_number_pair_entry_set_default_text (GimpNumberPairEntry *entry,
* gimp_number_pair_entry_get_default_text:
* @entry: A #GimpNumberPairEntry widget.
*
* Returns: the string manually set to be shown, or %NULL if values are
* shown in a normal fashion.
* Returns: (nullable): the string manually set to be shown,
* or %NULL if values are shown in a normal fashion.
*
* Since: 2.4
*/

12
libgimpwidgets/gimppageselector.c
View file

@ -597,9 +597,9 @@ gimp_page_selector_set_page_thumbnail (GimpPageSelector *selector,
* @selector: Pointer to a #GimpPageSelector.
* @page_no: The number of the page to get the thumbnail for.
*
* Returns: (transfer none): The page's thumbnail, or %NULL if none is set. The returned
* pixbuf is owned by #GimpPageSelector and must not be
* unref'ed when no longer needed.
* Returns: (nullable) (transfer none): The page's thumbnail, or %NULL if none
* is set. The returned pixbuf is owned by #GimpPageSelector and must
* not be unref'ed when no longer needed.
*
* Since: 2.4
**/
@ -678,9 +678,9 @@ gimp_page_selector_set_page_label (GimpPageSelector *selector,
* @selector: Pointer to a #GimpPageSelector.
* @page_no: The number of the page to get the thumbnail for.
*
* Returns: The page's label, or %NULL if none is set. This is a newly
* allocated string that should be g_free()'d when no longer
* needed.
* Returns: (nullable) (transfer full): The page's label, or %NULL if none is
* set. This is a newly allocated string that should be g_free()'d
* when no longer needed.
*
* Since: 2.4
**/

6
libgimpwidgets/gimpwidgetsutils.c
View file

@ -474,7 +474,8 @@ monitor_number (GdkMonitor *monitor)
*
* Since: 3.0
*
* Returns: (transfer full): the monitor's #GimpColorProfile, or %NULL.
* Returns: (nullable) (transfer full): the monitor's #GimpColorProfile,
* or %NULL.
**/
GimpColorProfile *
gimp_monitor_get_color_profile (GdkMonitor *monitor)
@ -590,7 +591,8 @@ gimp_monitor_get_color_profile (GdkMonitor *monitor)
*
* Since: 3.0
*
* Returns: (transfer full): @widget's monitor's #GimpColorProfile, or %NULL.
* Returns: (nullable) (transfer full): @widget's monitor's #GimpColorProfile,
* or %NULL.
**/
GimpColorProfile *
gimp_widget_get_color_profile (GtkWidget *widget)

2
plug-ins/file-jpeg/jpeg-settings.c
View file

@ -264,7 +264,7 @@ jpeg_restore_original_settings (gint32 image_ID,
* no parasite exists or if it cannot be used, this function returns
* NULL.
*
* Returns: an array of quantization tables, or NULL.
* Returns: (nullable): an array of quantization tables, or NULL.
*/
guint **
jpeg_restore_original_tables (gint32 image_ID,