[gtk/wip/chergert/remove-cclosure] gtk: rely on default marshallers



commit bd26cce812c426ab37db1613a05be52023ea1778
Author: Christian Hergert <chergert redhat com>
Date:   Thu May 30 20:56:50 2019 -0700

    gtk: rely on default marshallers
    
    Similar to previous removals of g_cclosure_marshal_VOID__VOID we can remove
    other marshallers for which are a simple G_TYPE_NONE with single parameter.
    In those cases, GLib will setup both a c_marshaller and va_marshaller for
    us. Before this commit, we would not get a va_marshaller because the
    c_marshaller is set.
    
    Related to GNOME/Initiatives#10

 gdk/gdkdevice.c                |  2 +-
 gdk/gdkdisplay.c               | 10 +++++-----
 gdk/gdkdisplaymanager.c        |  2 +-
 gdk/gdkdrag.c                  |  2 +-
 gdk/gdkseat.c                  |  8 ++++----
 gtk/gtkapplication.c           |  4 ++--
 gtk/gtkassistant.c             |  2 +-
 gtk/gtkcellrendereraccel.c     |  2 +-
 gtk/gtkcombobox.c              |  2 +-
 gtk/gtkentry.c                 |  4 ++--
 gtk/gtkflowbox.c               |  2 +-
 gtk/gtkiconview.c              |  2 +-
 gtk/gtkinfobar.c               |  2 +-
 gtk/gtklistbox.c               |  4 ++--
 gtk/gtknativedialog.c          |  2 +-
 gtk/gtkprintbackend.c          |  6 +++---
 gtk/gtkprinter.c               |  2 +-
 gtk/gtkprintoperation.c        |  8 ++++----
 gtk/gtkprintoperationpreview.c |  2 +-
 gtk/gtksearchengine.c          |  4 ++--
 gtk/gtktexthandle.c            |  4 ++--
 gtk/gtktoolbar.c               |  4 ++--
 gtk/gtkwidget.c                |  2 +-
 23 files changed, 41 insertions(+), 41 deletions(-)
---
diff --git a/gdk/gdkdevice.c b/gdk/gdkdevice.c
index 603231ee73..7b523ad730 100644
--- a/gdk/gdkdevice.c
+++ b/gdk/gdkdevice.c
@@ -330,7 +330,7 @@ gdk_device_class_init (GdkDeviceClass *klass)
                   G_TYPE_FROM_CLASS (object_class),
                   G_SIGNAL_RUN_LAST,
                   0, NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1, GDK_TYPE_DEVICE_TOOL);
 }
 
diff --git a/gdk/gdkdisplay.c b/gdk/gdkdisplay.c
index d8bdff8abb..c2a9e26bf7 100644
--- a/gdk/gdkdisplay.c
+++ b/gdk/gdkdisplay.c
@@ -237,7 +237,7 @@ gdk_display_class_init (GdkDisplayClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GdkDisplayClass, closed),
                  NULL, NULL,
-                  g_cclosure_marshal_VOID__BOOLEAN,
+                  NULL,
                  G_TYPE_NONE,
                  1,
                  G_TYPE_BOOLEAN);
@@ -255,7 +255,7 @@ gdk_display_class_init (GdkDisplayClass *class)
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  0, NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                  G_TYPE_NONE, 1, GDK_TYPE_SEAT);
 
   /**
@@ -271,7 +271,7 @@ gdk_display_class_init (GdkDisplayClass *class)
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  0, NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                  G_TYPE_NONE, 1, GDK_TYPE_SEAT);
 
   /**
@@ -287,7 +287,7 @@ gdk_display_class_init (GdkDisplayClass *class)
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  0, NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                  G_TYPE_NONE, 1, GDK_TYPE_MONITOR);
 
   /**
@@ -303,7 +303,7 @@ gdk_display_class_init (GdkDisplayClass *class)
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  0, NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                  G_TYPE_NONE, 1, GDK_TYPE_MONITOR);
 
   /**
diff --git a/gdk/gdkdisplaymanager.c b/gdk/gdkdisplaymanager.c
index 8025ae406c..8a359b77c6 100644
--- a/gdk/gdkdisplaymanager.c
+++ b/gdk/gdkdisplaymanager.c
@@ -156,7 +156,7 @@ gdk_display_manager_class_init (GdkDisplayManagerClass *klass)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GdkDisplayManagerClass, display_opened),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE,
                   1,
                   GDK_TYPE_DISPLAY);
diff --git a/gdk/gdkdrag.c b/gdk/gdkdrag.c
index 5f2f489168..acf7a7bede 100644
--- a/gdk/gdkdrag.c
+++ b/gdk/gdkdrag.c
@@ -450,7 +450,7 @@ gdk_drag_class_init (GdkDragClass *klass)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GdkDragClass, cancel),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__ENUM,
+                  NULL,
                   G_TYPE_NONE, 1, GDK_TYPE_DRAG_CANCEL_REASON);
 
   /**
diff --git a/gdk/gdkseat.c b/gdk/gdkseat.c
index c13fbed615..3f5f4d7622 100644
--- a/gdk/gdkseat.c
+++ b/gdk/gdkseat.c
@@ -129,7 +129,7 @@ gdk_seat_class_init (GdkSeatClass *klass)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GdkSeatClass, device_added),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GDK_TYPE_DEVICE);
 
@@ -147,7 +147,7 @@ gdk_seat_class_init (GdkSeatClass *klass)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GdkSeatClass, device_removed),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GDK_TYPE_DEVICE);
 
@@ -168,7 +168,7 @@ gdk_seat_class_init (GdkSeatClass *klass)
                   G_TYPE_FROM_CLASS (klass),
                   G_SIGNAL_RUN_LAST,
                   0, NULL, NULL,
-                  g_cclosure_marshal_VOID__BOXED,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GDK_TYPE_DEVICE_TOOL);
 
@@ -185,7 +185,7 @@ gdk_seat_class_init (GdkSeatClass *klass)
                   G_TYPE_FROM_CLASS (klass),
                   G_SIGNAL_RUN_LAST,
                   0, NULL, NULL,
-                  g_cclosure_marshal_VOID__BOXED,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GDK_TYPE_DEVICE_TOOL);
 
diff --git a/gtk/gtkapplication.c b/gtk/gtkapplication.c
index 5d8ca76a15..25ac949081 100644
--- a/gtk/gtkapplication.c
+++ b/gtk/gtkapplication.c
@@ -785,7 +785,7 @@ gtk_application_class_init (GtkApplicationClass *class)
     g_signal_new (I_("window-added"), GTK_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST,
                   G_STRUCT_OFFSET (GtkApplicationClass, window_added),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1, GTK_TYPE_WINDOW);
 
   /**
@@ -801,7 +801,7 @@ gtk_application_class_init (GtkApplicationClass *class)
     g_signal_new (I_("window-removed"), GTK_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST,
                   G_STRUCT_OFFSET (GtkApplicationClass, window_removed),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1, GTK_TYPE_WINDOW);
 
   /**
diff --git a/gtk/gtkassistant.c b/gtk/gtkassistant.c
index cb94ee91c8..206f78ca4a 100644
--- a/gtk/gtkassistant.c
+++ b/gtk/gtkassistant.c
@@ -565,7 +565,7 @@ gtk_assistant_class_init (GtkAssistantClass *class)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GtkAssistantClass, prepare),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1, GTK_TYPE_WIDGET);
 
   /**
diff --git a/gtk/gtkcellrendereraccel.c b/gtk/gtkcellrendereraccel.c
index 4f0f1b2bf1..38dbf83f23 100644
--- a/gtk/gtkcellrendereraccel.c
+++ b/gtk/gtkcellrendereraccel.c
@@ -264,7 +264,7 @@ gtk_cell_renderer_accel_class_init (GtkCellRendererAccelClass *cell_accel_class)
                                          G_SIGNAL_RUN_LAST,
                                          G_STRUCT_OFFSET (GtkCellRendererAccelClass, accel_cleared),
                                          NULL, NULL,
-                                         g_cclosure_marshal_VOID__STRING,
+                                         NULL,
                                          G_TYPE_NONE, 1,
                                          G_TYPE_STRING);
 }
diff --git a/gtk/gtkcombobox.c b/gtk/gtkcombobox.c
index ca13dc037a..3d8afc863b 100644
--- a/gtk/gtkcombobox.c
+++ b/gtk/gtkcombobox.c
@@ -475,7 +475,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
                                 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                                 G_CALLBACK (gtk_combo_box_real_move_active),
                                 NULL, NULL,
-                                g_cclosure_marshal_VOID__ENUM,
+                                NULL,
                                 G_TYPE_NONE, 1,
                                 GTK_TYPE_SCROLL_TYPE);
 
diff --git a/gtk/gtkentry.c b/gtk/gtkentry.c
index aa447f5739..e1cf3131f0 100644
--- a/gtk/gtkentry.c
+++ b/gtk/gtkentry.c
@@ -870,7 +870,7 @@ gtk_entry_class_init (GtkEntryClass *class)
                   G_SIGNAL_RUN_LAST,
                   0,
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__ENUM,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GTK_TYPE_ENTRY_ICON_POSITION);
 
@@ -888,7 +888,7 @@ gtk_entry_class_init (GtkEntryClass *class)
                   G_SIGNAL_RUN_LAST,
                   0,
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__ENUM,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GTK_TYPE_ENTRY_ICON_POSITION);
 
diff --git a/gtk/gtkflowbox.c b/gtk/gtkflowbox.c
index e52f505a94..53a417df82 100644
--- a/gtk/gtkflowbox.c
+++ b/gtk/gtkflowbox.c
@@ -3531,7 +3531,7 @@ gtk_flow_box_class_init (GtkFlowBoxClass *class)
                                            G_SIGNAL_RUN_LAST,
                                            G_STRUCT_OFFSET (GtkFlowBoxClass, child_activated),
                                            NULL, NULL,
-                                           g_cclosure_marshal_VOID__OBJECT,
+                                           NULL,
                                            G_TYPE_NONE, 1,
                                            GTK_TYPE_FLOW_BOX_CHILD);
 
diff --git a/gtk/gtkiconview.c b/gtk/gtkiconview.c
index ef76d1c585..aa33469028 100644
--- a/gtk/gtkiconview.c
+++ b/gtk/gtkiconview.c
@@ -649,7 +649,7 @@ gtk_icon_view_class_init (GtkIconViewClass *klass)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkIconViewClass, item_activated),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__BOXED,
+                 NULL,
                  G_TYPE_NONE, 1,
                  GTK_TYPE_TREE_PATH);
 
diff --git a/gtk/gtkinfobar.c b/gtk/gtkinfobar.c
index dcb130e0d5..2e52a5838d 100644
--- a/gtk/gtkinfobar.c
+++ b/gtk/gtkinfobar.c
@@ -385,7 +385,7 @@ gtk_info_bar_class_init (GtkInfoBarClass *klass)
                                     G_SIGNAL_RUN_LAST,
                                     G_STRUCT_OFFSET (GtkInfoBarClass, response),
                                     NULL, NULL,
-                                    g_cclosure_marshal_VOID__INT,
+                                    NULL,
                                     G_TYPE_NONE, 1,
                                     G_TYPE_INT);
 
diff --git a/gtk/gtklistbox.c b/gtk/gtklistbox.c
index 02c271c43a..ca788a9176 100644
--- a/gtk/gtklistbox.c
+++ b/gtk/gtklistbox.c
@@ -507,7 +507,7 @@ gtk_list_box_class_init (GtkListBoxClass *klass)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GtkListBoxClass, row_selected),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GTK_TYPE_LIST_BOX_ROW);
 
@@ -575,7 +575,7 @@ gtk_list_box_class_init (GtkListBoxClass *klass)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GtkListBoxClass, row_activated),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__OBJECT,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GTK_TYPE_LIST_BOX_ROW);
   signals[ACTIVATE_CURSOR_ROW] =
diff --git a/gtk/gtknativedialog.c b/gtk/gtknativedialog.c
index ffe783c99f..c97c6c0697 100644
--- a/gtk/gtknativedialog.c
+++ b/gtk/gtknativedialog.c
@@ -270,7 +270,7 @@ gtk_native_dialog_class_init (GtkNativeDialogClass *class)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GtkNativeDialogClass, response),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__INT,
+                  NULL,
                   G_TYPE_NONE, 1,
                   G_TYPE_INT);
 }
diff --git a/gtk/gtkprintbackend.c b/gtk/gtkprintbackend.c
index 3c963bb068..06be0798e6 100644
--- a/gtk/gtkprintbackend.c
+++ b/gtk/gtkprintbackend.c
@@ -296,7 +296,7 @@ gtk_print_backend_class_init (GtkPrintBackendClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrintBackendClass, printer_added),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__OBJECT,
+                 NULL,
                  G_TYPE_NONE, 1, GTK_TYPE_PRINTER);
   signals[PRINTER_REMOVED] =
     g_signal_new (I_("printer-removed"),
@@ -304,7 +304,7 @@ gtk_print_backend_class_init (GtkPrintBackendClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrintBackendClass, printer_removed),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__OBJECT,
+                 NULL,
                  G_TYPE_NONE, 1, GTK_TYPE_PRINTER);
   signals[PRINTER_STATUS_CHANGED] =
     g_signal_new (I_("printer-status-changed"),
@@ -312,7 +312,7 @@ gtk_print_backend_class_init (GtkPrintBackendClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrintBackendClass, printer_status_changed),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__OBJECT,
+                 NULL,
                  G_TYPE_NONE, 1, GTK_TYPE_PRINTER);
   signals[REQUEST_PASSWORD] =
     g_signal_new (I_("request-password"),
diff --git a/gtk/gtkprinter.c b/gtk/gtkprinter.c
index 25c189265a..a871b45466 100644
--- a/gtk/gtkprinter.c
+++ b/gtk/gtkprinter.c
@@ -223,7 +223,7 @@ gtk_printer_class_init (GtkPrinterClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrinterClass, details_acquired),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__BOOLEAN,
+                 NULL,
                  G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
 }
 
diff --git a/gtk/gtkprintoperation.c b/gtk/gtkprintoperation.c
index 5fb26d386e..03735d5ba9 100644
--- a/gtk/gtkprintoperation.c
+++ b/gtk/gtkprintoperation.c
@@ -773,7 +773,7 @@ gtk_print_operation_class_init (GtkPrintOperationClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrintOperationClass, done),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__ENUM,
+                 NULL,
                  G_TYPE_NONE, 1, GTK_TYPE_PRINT_OPERATION_RESULT);
 
   /**
@@ -794,7 +794,7 @@ gtk_print_operation_class_init (GtkPrintOperationClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrintOperationClass, begin_print),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__OBJECT,
+                 NULL,
                  G_TYPE_NONE, 1, GTK_TYPE_PRINT_CONTEXT);
 
    /**
@@ -932,7 +932,7 @@ gtk_print_operation_class_init (GtkPrintOperationClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrintOperationClass, end_print),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__OBJECT,
+                 NULL,
                  G_TYPE_NONE, 1, GTK_TYPE_PRINT_CONTEXT);
 
   /**
@@ -1018,7 +1018,7 @@ gtk_print_operation_class_init (GtkPrintOperationClass *class)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkPrintOperationClass, custom_widget_apply),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__OBJECT,
+                 NULL,
                  G_TYPE_NONE, 1, GTK_TYPE_WIDGET);
 
    /**
diff --git a/gtk/gtkprintoperationpreview.c b/gtk/gtkprintoperationpreview.c
index cea332fddd..98cca3ffdb 100644
--- a/gtk/gtkprintoperationpreview.c
+++ b/gtk/gtkprintoperationpreview.c
@@ -77,7 +77,7 @@ gtk_print_operation_preview_base_init (gpointer g_iface)
                    G_SIGNAL_RUN_LAST,
                    G_STRUCT_OFFSET (GtkPrintOperationPreviewIface, ready),
                    NULL, NULL,
-                   g_cclosure_marshal_VOID__OBJECT,
+                   NULL,
                    G_TYPE_NONE, 1,
                    GTK_TYPE_PRINT_CONTEXT);
 
diff --git a/gtk/gtksearchengine.c b/gtk/gtksearchengine.c
index 9f1c20e0f4..74496c9695 100644
--- a/gtk/gtksearchengine.c
+++ b/gtk/gtksearchengine.c
@@ -174,7 +174,7 @@ _gtk_search_engine_class_init (GtkSearchEngineClass *class)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GtkSearchEngineClass, hits_added),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__POINTER,
+                  NULL,
                   G_TYPE_NONE, 1,
                   G_TYPE_POINTER);
 
@@ -193,7 +193,7 @@ _gtk_search_engine_class_init (GtkSearchEngineClass *class)
                   G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GtkSearchEngineClass, error),
                   NULL, NULL,
-                  g_cclosure_marshal_VOID__STRING,
+                  NULL,
                   G_TYPE_NONE, 1,
                   G_TYPE_STRING);
 }
diff --git a/gtk/gtktexthandle.c b/gtk/gtktexthandle.c
index 5edbee5de5..25ecd116ea 100644
--- a/gtk/gtktexthandle.c
+++ b/gtk/gtktexthandle.c
@@ -616,7 +616,7 @@ _gtk_text_handle_class_init (GtkTextHandleClass *klass)
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST, 0,
                  NULL, NULL,
-                  g_cclosure_marshal_VOID__ENUM,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GTK_TYPE_TEXT_HANDLE_POSITION);
   signals[DRAG_FINISHED] =
@@ -624,7 +624,7 @@ _gtk_text_handle_class_init (GtkTextHandleClass *klass)
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST, 0,
                  NULL, NULL,
-                  g_cclosure_marshal_VOID__ENUM,
+                  NULL,
                   G_TYPE_NONE, 1,
                   GTK_TYPE_TEXT_HANDLE_POSITION);
 
diff --git a/gtk/gtktoolbar.c b/gtk/gtktoolbar.c
index 5c2574fde8..93ecd03c04 100644
--- a/gtk/gtktoolbar.c
+++ b/gtk/gtktoolbar.c
@@ -410,7 +410,7 @@ gtk_toolbar_class_init (GtkToolbarClass *klass)
                  G_SIGNAL_RUN_FIRST,
                  G_STRUCT_OFFSET (GtkToolbarClass, orientation_changed),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__ENUM,
+                 NULL,
                  G_TYPE_NONE, 1,
                  GTK_TYPE_ORIENTATION);
   /**
@@ -426,7 +426,7 @@ gtk_toolbar_class_init (GtkToolbarClass *klass)
                  G_SIGNAL_RUN_FIRST,
                  G_STRUCT_OFFSET (GtkToolbarClass, style_changed),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__ENUM,
+                 NULL,
                  G_TYPE_NONE, 1,
                  GTK_TYPE_TOOLBAR_STYLE);
   /**
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 67456abcd5..91d74550b5 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -1666,7 +1666,7 @@ gtk_widget_class_init (GtkWidgetClass *klass)
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (GtkWidgetClass, drag_leave),
                  NULL, NULL,
-                 g_cclosure_marshal_VOID__OBJECT,
+                 NULL,
                  G_TYPE_NONE, 1,
                  GDK_TYPE_DROP);
 


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