Have TkCloner return std::unique_ptr for factory functions

DataFormats/TrackerRecHit2D/interface/ProjectedSiStripRecHit2D.h

@@ -74,7 +74,7 @@ class ProjectedSiStripRecHit2D GCC11_FINAL  : public TrackerSingleRecHit  {
 private:
   // double dispatch
   virtual ProjectedSiStripRecHit2D * clone(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const {
-    return cloner(*this,tsos);
+    return cloner(*this,tsos).release();
   }
 #ifdef NO_DICT
   virtual  ConstRecHitPointer cloneSH(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const {

DataFormats/TrackerRecHit2D/interface/SiPixelRecHit.h

@@ -58,7 +58,7 @@ class SiPixelRecHit GCC11_FINAL : public TrackerSingleRecHit {
 private:
   // double dispatch
   virtual SiPixelRecHit * clone(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const {
-    return cloner(*this,tsos);
+    return cloner(*this,tsos).release();
   }
 #ifdef NO_DICT
   virtual  RecHitPointer cloneSH(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const {

DataFormats/TrackerRecHit2D/interface/SiStripMatchedRecHit2D.h

@@ -64,7 +64,7 @@ class SiStripMatchedRecHit2D GCC11_FINAL : public BaseTrackerRecHit {
 private:
   // double dispatch
   virtual SiStripMatchedRecHit2D * clone(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const {
-    return cloner(*this,tsos);
+    return cloner(*this,tsos).release();
   }
 #ifdef NO_DICT
   virtual  RecHitPointer cloneSH(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const {

DataFormats/TrackerRecHit2D/interface/SiStripRecHit1D.h

@@ -42,7 +42,7 @@ class SiStripRecHit1D GCC11_FINAL : public TrackerSingleRecHit {
 private:
   // double dispatch
   virtual SiStripRecHit1D * clone(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const GCC11_OVERRIDE {
-    return cloner(*this,tsos);
+    return cloner(*this,tsos).release();
   }
 #ifdef NO_DICT
   virtual  RecHitPointer cloneSH(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const GCC11_OVERRIDE {

DataFormats/TrackerRecHit2D/interface/SiStripRecHit2D.h

@@ -40,8 +40,8 @@ class SiStripRecHit2D GCC11_FINAL : public TrackerSingleRecHit {
   virtual bool canImproveWithTrack() const GCC11_OVERRIDE {return true;}
 private:
   // double dispatch
-  virtual SiStripRecHit2D * clone(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const GCC11_OVERRIDE {
-    return cloner(*this,tsos);
+  virtual SiStripRecHit2D* clone(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const GCC11_OVERRIDE {
+    return cloner(*this,tsos).release();
   }
 #ifdef NO_DICT
   virtual  RecHitPointer cloneSH(TkCloner const& cloner, TrajectoryStateOnSurface const& tsos) const GCC11_OVERRIDE {

DataFormats/TrackerRecHit2D/interface/TkCloner.h

@@ -1,8 +1,10 @@
 #ifndef TKClonerRecHit_H
 #define TKClonerRecHit_H
 
+#include <memory>
 #include "DataFormats/TrackingRecHit/interface/TrackingRecHit.h"
 #include "FWCore/Utilities/interface/thread_safety_macros.h"
+#include "FWCore/Utilities/interface/HideStdUniquePtrFromRoot.h"
 
 class SiPixelRecHit;
 class SiStripRecHit2D;
@@ -23,11 +25,11 @@ class TkCloner {
   }
 #endif
 
-  virtual SiPixelRecHit * operator()(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const=0;
-  virtual SiStripRecHit2D * operator()(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
-  virtual SiStripRecHit1D * operator()(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
-  virtual SiStripMatchedRecHit2D * operator()(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
-  virtual ProjectedSiStripRecHit2D * operator()(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
+  virtual std::unique_ptr<SiPixelRecHit> operator()(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const=0;
+  virtual std::unique_ptr<SiStripRecHit2D> operator()(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
+  virtual std::unique_ptr<SiStripRecHit1D> operator()(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
+  virtual std::unique_ptr<SiStripMatchedRecHit2D> operator()(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
+  virtual std::unique_ptr<ProjectedSiStripRecHit2D> operator()(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const=0;
 
 #ifdef NO_DICT
   virtual TrackingRecHit::ConstRecHitPointer makeShared(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const=0;

FWCore/Utilities/interface/HideStdUniquePtrFromRoot.h

@@ -0,0 +1,55 @@
+#ifndef FWCore_Utilities_HideStdUniquePtrFromRoot_h
+#define FWCore_Utilities_HideStdUniquePtrFromRoot_h
+#if defined(__GCCXML__)
+// -*- C++ -*-
+//
+// Package:     FWCore/Utilities
+// Class  :     HideStdUniquePtrFromRoot
+// 
+/**
+
+ Description: gccxml can't parse std::unique_ptr so we need to give a substitute
+
+ Usage:
+    gccxml has its own version of <memory> which does not include 
+ std::unique_ptr<> so we need a declaration of the class which has
+ the same memory footprint and declares those methods which are seen
+ by gccxml.
+
+*/
+//
+// Original Author:  Chris Jones
+//         Created:  Wed, 04 Dec 2013 16:39:12 GMT
+//
+
+// system include files
+
+// user include files
+
+// forward declarations
+namespace std {
+  template< typename T>
+  class unique_ptr {
+    void* data_;
+  public:
+    unique_ptr();
+    unique_ptr(T*);
+    template<typename U> unique_ptr(const U&);
+    void reset(T* iValue=0);
+    T* get();
+    T const* get() const;
+    T* release();
+
+    T* operator->();
+    T const* operator->() const;
+
+    T operator*() const;
+
+    operator bool() const;
+  };
+}
+#endif
+#endif
+
+/*  LocalWords:  ifndef
+ */

RecoTracker/TkSeedingLayers/src/HitExtractorSTRP.cc

@@ -82,7 +82,7 @@ HitExtractorSTRP::skipThis(const TkTransientTrackingRecHitBuilder& ttrhBuilder,
   // replace with one
 
   auto cloner = ttrhBuilder.cloner();
-  replaceMe = cloner.project(hit, rejectSt, TrajectoryStateOnSurface());
+  replaceMe = cloner.project(hit, rejectSt, TrajectoryStateOnSurface()).release();
   if (rejectSt)
     LogDebug("HitExtractorSTRP")<<"a matched hit is partially masked, and the mono hit got projected onto: "<<replaceMe->geographicalId().rawId()<<" key: "<<hit.monoClusterRef().key();
   else 

RecoTracker/TransientTrackingRecHit/interface/TkClonerImpl.h

@@ -1,9 +1,9 @@
 #ifndef TKClonerImplRecHit_H
 #define TKClonerImplRecHit_H
 
+#include <memory>
 #include "DataFormats/TrackerRecHit2D/interface/TkCloner.h"
 
-
 class PixelClusterParameterEstimator;
 class StripClusterParameterEstimator;
 class SiStripRecHitMatcher;
@@ -18,23 +18,23 @@ class TkClonerImpl final : public TkCloner {
 	       ): pixelCPE(ipixelCPE), stripCPE(istripCPE), theMatcher(iMatcher){}
 
   using TkCloner::operator();
-  virtual SiPixelRecHit * operator()(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual SiStripRecHit2D * operator()(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual SiStripRecHit1D * operator()(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual SiStripMatchedRecHit2D * operator()(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual ProjectedSiStripRecHit2D * operator()(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const;
+  virtual std::unique_ptr<SiPixelRecHit> operator()(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual std::unique_ptr<SiStripRecHit2D> operator()(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual std::unique_ptr<SiStripRecHit1D> operator()(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual std::unique_ptr<SiStripMatchedRecHit2D> operator()(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual std::unique_ptr<ProjectedSiStripRecHit2D> operator()(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const override;
 
 
   using TkCloner::makeShared;
-  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const;
-  virtual TrackingRecHit::ConstRecHitPointer makeShared(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const;
+  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual TrackingRecHit::ConstRecHitPointer makeShared(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const override;
+  virtual TrackingRecHit::ConstRecHitPointer makeShared(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const override;
 
 
   // project either mono or stero hit...
-  ProjectedSiStripRecHit2D * project(SiStripMatchedRecHit2D const & hit, bool mono, TrajectoryStateOnSurface const& tsos) const;
+  std::unique_ptr<ProjectedSiStripRecHit2D> project(SiStripMatchedRecHit2D const & hit, bool mono, TrajectoryStateOnSurface const& tsos) const;
 
 private:
   const PixelClusterParameterEstimator * pixelCPE;

RecoTracker/TransientTrackingRecHit/src/TkClonerImpl.cc

@@ -21,27 +21,27 @@
 #include<iostream>
 #include <memory>
 
-SiPixelRecHit * TkClonerImpl::operator()(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const {
+std::unique_ptr<SiPixelRecHit>  TkClonerImpl::operator()(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const {
   const SiPixelCluster& clust = *hit.cluster();  
   auto && params = pixelCPE->getParameters( clust, *hit.detUnit(), tsos);
-  return new SiPixelRecHit(std::get<0>(params), std::get<1>(params), std::get<2>(params), *hit.det(), hit.cluster());
+  return std::unique_ptr<SiPixelRecHit>(new SiPixelRecHit(std::get<0>(params), std::get<1>(params), std::get<2>(params), *hit.det(), hit.cluster()));
 }
 
-SiStripRecHit2D * TkClonerImpl::operator()(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const {
+std::unique_ptr<SiStripRecHit2D> TkClonerImpl::operator()(SiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const {
     /// FIXME: this only uses the first cluster and ignores the others
     const SiStripCluster&  clust = hit.stripCluster();  
     StripClusterParameterEstimator::LocalValues lv = 
       stripCPE->localParameters( clust, *hit.detUnit(), tsos);
- return new SiStripRecHit2D(lv.first, lv.second, *hit.det(), hit.omniCluster());
+    return std::unique_ptr<SiStripRecHit2D>{new SiStripRecHit2D(lv.first, lv.second, *hit.det(), hit.omniCluster())};
 }
 
-SiStripRecHit1D * TkClonerImpl::operator()(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const {
+std::unique_ptr<SiStripRecHit1D> TkClonerImpl::operator()(SiStripRecHit1D const & hit, TrajectoryStateOnSurface const& tsos) const {
   /// FIXME: this only uses the first cluster and ignores the others
   const SiStripCluster&  clust = hit.stripCluster();  
   StripClusterParameterEstimator::LocalValues lv = 
     stripCPE->localParameters( clust, *hit.detUnit(), tsos);
   LocalError le(lv.second.xx(),0.,std::numeric_limits<float>::max()); //Correct??
-  return new SiStripRecHit1D(lv.first, le, *hit.det(), hit.omniCluster());
+  return std::unique_ptr<SiStripRecHit1D>{new SiStripRecHit1D(lv.first, le, *hit.det(), hit.omniCluster())};
 }
 
 TrackingRecHit::ConstRecHitPointer TkClonerImpl::makeShared(SiPixelRecHit const & hit, TrajectoryStateOnSurface const& tsos) const {
@@ -100,7 +100,7 @@ namespace {
 #endif
 }
 
-SiStripMatchedRecHit2D * TkClonerImpl::operator()(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const {
+std::unique_ptr<SiStripMatchedRecHit2D> TkClonerImpl::operator()(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const {
     const GeomDet * det = hit.det();
     const GluedGeomDet *gdet = static_cast<const GluedGeomDet *> (det);
     LocalVector tkDir = (tsos.isValid() ? tsos.localDirection() : 
@@ -123,10 +123,10 @@ SiStripMatchedRecHit2D * TkClonerImpl::operator()(SiStripMatchedRecHit2D const &
 
     // return theMatcher->match(&monoHit,&stereoHit,gdet,tkDir,true);
     std::unique_ptr<SiStripMatchedRecHit2D> temp = theMatcher->match(&monoHit,&stereoHit,gdet,tkDir,false);
-    SiStripMatchedRecHit2D * better =  temp.release();
-
-    return better ? better : hit.clone();
-
+    if(temp.get() == nullptr) {
+      temp = std::unique_ptr<SiStripMatchedRecHit2D>(hit.clone());
+    }
+    return temp;
 }
 
 TrackingRecHit::ConstRecHitPointer TkClonerImpl::makeShared(SiStripMatchedRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const {
@@ -139,7 +139,7 @@ TrackingRecHit::ConstRecHitPointer TkClonerImpl::makeShared(ProjectedSiStripRecH
    return TrackingRecHit::ConstRecHitPointer((*this)(hit,tsos));
 }
 
-ProjectedSiStripRecHit2D * TkClonerImpl::operator()(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const {
+std::unique_ptr<ProjectedSiStripRecHit2D> TkClonerImpl::operator()(ProjectedSiStripRecHit2D const & hit, TrajectoryStateOnSurface const& tsos) const {
   const SiStripCluster& clust = hit.stripCluster();
   const GeomDetUnit * gdu = reinterpret_cast<const GeomDetUnit *>(hit.originalDet());
   //if (!gdu) std::cout<<"no luck dude"<<std::endl;
@@ -164,11 +164,11 @@ ProjectedSiStripRecHit2D * TkClonerImpl::operator()(ProjectedSiStripRecHit2D con
     hitErr = LocalError( hitErr.xx(), -hitErr.xy(), hitErr.yy());
   }
   LocalError rotatedError = hitErr.rotate( hitXAxis.x(), hitXAxis.y());
-  return new ProjectedSiStripRecHit2D(projectedHitPos, rotatedError, *hit.det(), *hit.originalDet(), hit.omniCluster());
+  return std::unique_ptr<ProjectedSiStripRecHit2D>{new ProjectedSiStripRecHit2D(projectedHitPos, rotatedError, *hit.det(), *hit.originalDet(), hit.omniCluster())};
 }
 
 
-ProjectedSiStripRecHit2D * TkClonerImpl::project(SiStripMatchedRecHit2D const & hit, bool mono, TrajectoryStateOnSurface const& tsos) const {
+std::unique_ptr<ProjectedSiStripRecHit2D> TkClonerImpl::project(SiStripMatchedRecHit2D const & hit, bool mono, TrajectoryStateOnSurface const& tsos) const {
   const GeomDet & det = *hit.det();
   const GluedGeomDet & gdet = static_cast<const GluedGeomDet &> (det);
   const GeomDetUnit * odet = mono ? gdet.monoDet() : gdet.stereoDet();
@@ -203,6 +203,7 @@ ProjectedSiStripRecHit2D * TkClonerImpl::project(SiStripMatchedRecHit2D const &
     hitErr = LocalError( hitErr.xx(), -hitErr.xy(), hitErr.yy());
   }
   LocalError rotatedError = hitErr.rotate( hitXAxis.x(), hitXAxis.y());
-  return new ProjectedSiStripRecHit2D(projectedHitPos, rotatedError, det, *odet, 
-				      mono ? hit.monoClusterRef() : hit.stereoClusterRef() );
+  return std::unique_ptr<ProjectedSiStripRecHit2D>{
+    new ProjectedSiStripRecHit2D(projectedHitPos, rotatedError, det, *odet, 
+				 mono ? hit.monoClusterRef() : hit.stereoClusterRef() ) };
 }