Gradually typed Link

Turn the Link class into a template abstracting over the link's argument and
return types, but provide default template arguments that keep the generic,
unsafe "void* in, sal_IntPtr out" behvior.  That way, individual uses of the
Link class can be updated over time.

All the related macros are duplicated with ..._TYPED counterparts, that
additionally take the RetType (except for LINK_TYPED, which manages to infer the
relevant types from the supplied Member).

(It would have been attractive to change the "untyped" LinkStubs from taking a
void* to a properly typed ArgType parameter, too, but that would cause
-fsanitize=function to flag uses of "untyped" Link::Call.)

Change-Id: I3b0140378bad99abbf240140ebb4a46a05d2d2f8

2 files changed, 3 insertions, 3 deletions

diff --git a/toolkit/source/awt/scrollabledialog.cxx b/toolkit/source/awt/scrollabledialog.cxx
index bcb508c8c06e..08c72bb8c92c 100644
--- a/toolkit/source/awt/scrollabledialog.cxx
+++ b/toolkit/source/awt/scrollabledialog.cxx
@@ -39,7 +39,7 @@ ScrollableWrapper<T>::ScrollableWrapper( vcl::Window* pParent, WinBits nStyle )
       mbHasVertBar( false ),
       maScrollVis( None )
 {
-    Link aLink( LINK( this, ScrollableWrapper, ScrollBarHdl ) );
+    Link<> aLink( LINK( this, ScrollableWrapper, ScrollBarHdl ) );
     maVScrollBar->SetScrollHdl( aLink );
     maHScrollBar->SetScrollHdl( aLink );
 
diff --git a/toolkit/source/awt/vclxtoolkit.cxx b/toolkit/source/awt/vclxtoolkit.cxx
index 50106d844729..05b233013916 100644
--- a/toolkit/source/awt/vclxtoolkit.cxx
+++ b/toolkit/source/awt/vclxtoolkit.cxx
@@ -159,8 +159,8 @@ class VCLXToolkit : public VCLXToolkit_Impl,
     ::cppu::OInterfaceContainerHelper m_aTopWindowListeners;
     ::cppu::OInterfaceContainerHelper m_aKeyHandlers;
     ::cppu::OInterfaceContainerHelper m_aFocusListeners;
-    ::Link m_aEventListenerLink;
-    ::Link m_aKeyListenerLink;
+    ::Link<> m_aEventListenerLink;
+    ::Link<> m_aKeyListenerLink;
     bool m_bEventListener;
     bool m_bKeyListener;