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

1 files changed, 6 insertions, 6 deletions

diff --git a/include/vcl/spin.hxx b/include/vcl/spin.hxx
index a78f3b292b1f..1e40c6d6f017 100644
--- a/include/vcl/spin.hxx
+++ b/include/vcl/spin.hxx
@@ -43,8 +43,8 @@ private:
     bool            mbInitialDown    : 1;
     bool            mbHorz           : 1;
     bool            mbUpperIsFocused : 1;
-    Link            maUpHdlLink;
-    Link            maDownHdlLink;
+    Link<>          maUpHdlLink;
+    Link<>          maDownHdlLink;
     long            mnMinRange;
     long            mnMaxRange;
     long            mnValue;
@@ -84,10 +84,10 @@ public:
     long            GetValueStep() const { return mnValueStep; }
     virtual bool    PreNotify( NotifyEvent& rNEvt ) SAL_OVERRIDE;
 
-    void            SetUpHdl( const Link& rLink ) { maUpHdlLink = rLink; }
-    const Link&     GetUpHdl() const   { return maUpHdlLink;   }
-    void            SetDownHdl( const Link& rLink ) { maDownHdlLink = rLink; }
-    const Link&     GetDownHdl() const { return maDownHdlLink; }
+    void            SetUpHdl( const Link<>& rLink ) { maUpHdlLink = rLink; }
+    const Link<>&   GetUpHdl() const   { return maUpHdlLink;   }
+    void            SetDownHdl( const Link<>& rLink ) { maDownHdlLink = rLink; }
+    const Link<>&   GetDownHdl() const { return maDownHdlLink; }
 
 private:
     // moves the focus to the upper or lower rect. Return sal_True if the focus rect actually changed.