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, 3 insertions, 3 deletions

diff --git a/include/vcl/gdimtf.hxx b/include/vcl/gdimtf.hxx
index e860dda464b1..43bfad95a0b6 100644
--- a/include/vcl/gdimtf.hxx
+++ b/include/vcl/gdimtf.hxx
@@ -78,7 +78,7 @@ private:
 
     MapMode         aPrefMapMode;
     Size            aPrefSize;
-    Link            aHookHdlLink;
+    Link<>          aHookHdlLink;
     GDIMetaFile*    pPrev;
     GDIMetaFile*    pNext;
     VclPtr<OutputDevice> pOutDev;
@@ -198,8 +198,8 @@ public:
     const MapMode&  GetPrefMapMode() const { return aPrefMapMode; }
     void            SetPrefMapMode( const MapMode& rMapMode ) { aPrefMapMode = rMapMode; }
 
-    void            SetHookHdl( const Link& rLink ) { aHookHdlLink = rLink; }
-    const Link&     GetHookHdl() const { return aHookHdlLink; }
+    void            SetHookHdl( const Link<>& rLink ) { aHookHdlLink = rLink; }
+    const Link<>&   GetHookHdl() const { return aHookHdlLink; }
 
     sal_uLong       GetChecksum() const;
     sal_uLong       GetSizeBytes() const;