Revert "Move GetLinkInformation to cmGeneratorTarget"

As we can't move all linking related code from cmTarget, it makes
sense to reverse the move in some cases.

This reverts commit 4f5384e75c6a00d110d3fa3f555a3f6a4f31bb46.

Source/cmGeneratorTarget.cxx

@@ -14,14 +14,11 @@
 #include "cmTarget.h"
 #include "cmMakefile.h"
 #include "cmLocalGenerator.h"
-#include "cmComputeLinkInformation.h"
 #include "cmGlobalGenerator.h"
 #include "cmSourceFile.h"
 #include "cmGeneratorExpression.h"
 #include "cmGeneratorExpressionDAGChecker.h"
 
-#include <assert.h>
-
 //----------------------------------------------------------------------------
 cmGeneratorTarget::cmGeneratorTarget(cmTarget* t): Target(t)
 {
@@ -32,15 +29,6 @@ cmGeneratorTarget::cmGeneratorTarget(cmTarget* t): Target(t)
   this->LookupObjectLibraries();
 }
 
-cmGeneratorTarget::~cmGeneratorTarget()
-{
-  for(std::map<cmStdString, cmComputeLinkInformation*>::iterator i
-                  = LinkInformation.begin(); i != LinkInformation.end(); ++i)
-    {
-    delete i->second;
-    }
-}
-
 //----------------------------------------------------------------------------
 int cmGeneratorTarget::GetType() const
 {
@@ -220,32 +208,6 @@ void cmGeneratorTarget::UseObjectLibraries(std::vector<std::string>& objs)
     }
 }
 
-//----------------------------------------------------------------------------
-cmComputeLinkInformation*
-cmGeneratorTarget::GetLinkInformation(const char* config)
-{
-  // Lookup any existing information for this configuration.
-  std::map<cmStdString, cmComputeLinkInformation*>::iterator
-    i = this->LinkInformation.find(config?config:"");
-  if(i == this->LinkInformation.end())
-    {
-    // Compute information for this configuration.
-    cmComputeLinkInformation* info =
-      new cmComputeLinkInformation(this->Target, config);
-    if(!info || !info->Compute())
-      {
-      delete info;
-      info = 0;
-      }
-
-    // Store the information for this configuration.
-    std::map<cmStdString, cmComputeLinkInformation*>::value_type
-      entry(config?config:"", info);
-    i = this->LinkInformation.insert(entry).first;
-    }
-  return i->second;
-}
-
 //----------------------------------------------------------------------------
 void cmGeneratorTarget::GetAppleArchs(const char* config,
                              std::vector<std::string>& archVec)

Source/cmGeneratorTarget.h

@@ -14,7 +14,6 @@
 
 #include "cmStandardIncludes.h"
 
-class cmComputeLinkInformation;
 class cmCustomCommand;
 class cmGlobalGenerator;
 class cmLocalGenerator;
@@ -26,7 +25,6 @@ class cmGeneratorTarget
 {
 public:
   cmGeneratorTarget(cmTarget*);
-  ~cmGeneratorTarget();
 
   int GetType() const;
   const char *GetName() const;
@@ -60,10 +58,6 @@ public:
 
   void UseObjectLibraries(std::vector<std::string>& objs);
 
-  std::map<cmStdString, cmComputeLinkInformation*> LinkInformation;
-
-  cmComputeLinkInformation* GetLinkInformation(const char* config);
-
   void GetAppleArchs(const char* config,
                      std::vector<std::string>& archVec);
 

Source/cmGlobalXCodeGenerator.cxx

@@ -2649,8 +2649,7 @@ void cmGlobalXCodeGenerator
       }
 
     // Compute the link library and directory information.
-    cmGeneratorTarget* gtgt = this->GetGeneratorTarget(cmtarget);
-    cmComputeLinkInformation* pcli = gtgt->GetLinkInformation(configName);
+    cmComputeLinkInformation* pcli = cmtarget->GetLinkInformation(configName);
     if(!pcli)
       {
       continue;

Source/cmInstallTargetGenerator.cxx

@@ -16,7 +16,6 @@
 #include "cmLocalGenerator.h"
 #include "cmMakefile.h"
 #include "cmake.h"
-#include "cmGeneratorTarget.h"
 
 #include <assert.h>
 
@@ -27,8 +26,7 @@ cmInstallTargetGenerator
                            std::vector<std::string> const& configurations,
                            const char* component, bool optional):
   cmInstallGenerator(dest, configurations, component), Target(&t),
-  ImportLibrary(implib), FilePermissions(file_permissions),
-  Optional(optional), GeneratorTarget(0)
+  ImportLibrary(implib), FilePermissions(file_permissions), Optional(optional)
 {
   this->ActionsPerConfig = true;
   this->NamelinkMode = NamelinkModeNone;
@@ -486,17 +484,6 @@ void cmInstallTargetGenerator::PostReplacementTweaks(std::ostream& os,
   this->AddStripRule(os, indent, file);
 }
 
-void cmInstallTargetGenerator::CreateGeneratorTarget()
-{
-  if (!this->GeneratorTarget)
-    {
-    this->GeneratorTarget = this->Target->GetMakefile()
-                                        ->GetLocalGenerator()
-                                        ->GetGlobalGenerator()
-                                        ->GetGeneratorTarget(this->Target);
-    }
-}
-
 //----------------------------------------------------------------------------
 void
 cmInstallTargetGenerator
@@ -520,13 +507,10 @@ cmInstallTargetGenerator
     return;
     }
 
-  this->CreateGeneratorTarget();
-
   // Build a map of build-tree install_name to install-tree install_name for
   // shared libraries linked to this target.
   std::map<cmStdString, cmStdString> install_name_remap;
-  if(cmComputeLinkInformation* cli =
-                            this->GeneratorTarget->GetLinkInformation(config))
+  if(cmComputeLinkInformation* cli = this->Target->GetLinkInformation(config))
     {
     std::set<cmTarget*> const& sharedLibs = cli->GetSharedLibrariesLinked();
     for(std::set<cmTarget*>::const_iterator j = sharedLibs.begin();
@@ -624,12 +608,9 @@ cmInstallTargetGenerator
     return;
     }
 
-  this->CreateGeneratorTarget();
-
   // Get the link information for this target.
   // It can provide the RPATH.
-  cmComputeLinkInformation* cli =
-                            this->GeneratorTarget->GetLinkInformation(config);
+  cmComputeLinkInformation* cli = this->Target->GetLinkInformation(config);
   if(!cli)
     {
     return;
@@ -658,12 +639,9 @@ cmInstallTargetGenerator
     return;
     }
 
-  this->CreateGeneratorTarget();
-
   // Get the link information for this target.
   // It can provide the RPATH.
-  cmComputeLinkInformation* cli =
-                            this->GeneratorTarget->GetLinkInformation(config);
+  cmComputeLinkInformation* cli = this->Target->GetLinkInformation(config);
   if(!cli)
     {
     return;

Source/cmInstallTargetGenerator.h

@@ -14,8 +14,7 @@
 
 #include "cmInstallGenerator.h"
 #include "cmTarget.h"
-
-class cmGeneratorTarget;
+#include "cmGeneratorTarget.h"
 
 /** \class cmInstallTargetGenerator
  * \brief Generate target installation rules.
@@ -94,8 +93,6 @@ protected:
   void AddRanlibRule(std::ostream& os, Indent const& indent,
                      const std::string& toDestDirPath);
 
-  void CreateGeneratorTarget();
-
   cmTarget* Target;
   bool ImportLibrary;
   std::string FilePermissions;

Source/cmLocalGenerator.cxx

@@ -1671,7 +1671,7 @@ void cmLocalGenerator::OutputLinkLibraries(std::string& linkLibraries,
 {
   cmOStringStream fout;
   const char* config = this->Makefile->GetDefinition("CMAKE_BUILD_TYPE");
-  cmComputeLinkInformation* pcli = tgt.GetLinkInformation(config);
+  cmComputeLinkInformation* pcli = tgt.Target->GetLinkInformation(config);
   if(!pcli)
     {
     return;

Source/cmLocalVisualStudio6Generator.cxx

@@ -1785,10 +1785,8 @@ void cmLocalVisualStudio6Generator
                      const std::string extraOptions,
                      std::string& options)
 {
-  cmGeneratorTarget* gt =
-    this->GlobalGenerator->GetGeneratorTarget(&target);
   // Compute the link information for this configuration.
-  cmComputeLinkInformation* pcli = gt->GetLinkInformation(configName);
+  cmComputeLinkInformation* pcli = target.GetLinkInformation(configName);
   if(!pcli)
     {
     return;

Source/cmLocalVisualStudio7Generator.cxx

@@ -1076,9 +1076,7 @@ void cmLocalVisualStudio7Generator::OutputBuildTool(std::ostream& fout,
                            targetNameImport, targetNamePDB, configName);
 
     // Compute the link library and directory information.
-    cmGeneratorTarget* gt =
-      this->GlobalGenerator->GetGeneratorTarget(&target);
-    cmComputeLinkInformation* pcli = gt->GetLinkInformation(configName);
+    cmComputeLinkInformation* pcli = target.GetLinkInformation(configName);
     if(!pcli)
       {
       return;
@@ -1163,9 +1161,7 @@ void cmLocalVisualStudio7Generator::OutputBuildTool(std::ostream& fout,
                               targetNameImport, targetNamePDB, configName);
 
     // Compute the link library and directory information.
-    cmGeneratorTarget* gt =
-      this->GlobalGenerator->GetGeneratorTarget(&target);
-    cmComputeLinkInformation* pcli = gt->GetLinkInformation(configName);
+    cmComputeLinkInformation* pcli = target.GetLinkInformation(configName);
     if(!pcli)
       {
       return;

Source/cmMakefileTargetGenerator.cxx

@@ -1017,8 +1017,7 @@ void cmMakefileTargetGenerator::WriteTargetDependRules()
     << "SET(CMAKE_TARGET_LINKED_INFO_FILES\n";
   std::set<cmTarget const*> emitted;
   const char* cfg = this->LocalGenerator->ConfigurationName.c_str();
-  if(cmComputeLinkInformation* cli =
-                              this->GeneratorTarget->GetLinkInformation(cfg))
+  if(cmComputeLinkInformation* cli = this->Target->GetLinkInformation(cfg))
     {
     cmComputeLinkInformation::ItemVector const& items = cli->GetItems();
     for(cmComputeLinkInformation::ItemVector::const_iterator
@@ -1594,8 +1593,7 @@ void cmMakefileTargetGenerator
 
   // Loop over all library dependencies.
   const char* cfg = this->LocalGenerator->ConfigurationName.c_str();
-  if(cmComputeLinkInformation* cli =
-                              this->GeneratorTarget->GetLinkInformation(cfg))
+  if(cmComputeLinkInformation* cli = this->Target->GetLinkInformation(cfg))
     {
     std::vector<std::string> const& libDeps = cli->GetDepends();
     for(std::vector<std::string>::const_iterator j = libDeps.begin();

Source/cmNinjaTargetGenerator.cxx

@@ -257,7 +257,7 @@ cmNinjaDeps cmNinjaTargetGenerator::ComputeLinkDeps() const
     return cmNinjaDeps();
 
   cmComputeLinkInformation* cli =
-    this->GeneratorTarget->GetLinkInformation(this->GetConfigName());
+    this->Target->GetLinkInformation(this->GetConfigName());
   if(!cli)
     return cmNinjaDeps();
 

Source/cmTarget.cxx

@@ -15,6 +15,7 @@
 #include "cmSourceFile.h"
 #include "cmLocalGenerator.h"
 #include "cmGlobalGenerator.h"
+#include "cmComputeLinkInformation.h"
 #include "cmDocumentCompileDefinitions.h"
 #include "cmDocumentGeneratorExpressions.h"
 #include "cmDocumentLocationUndefined.h"
@@ -4813,6 +4814,32 @@ std::string cmTarget::CheckCMP0004(std::string const& item)
   return lib;
 }
 
+//----------------------------------------------------------------------------
+cmComputeLinkInformation*
+cmTarget::GetLinkInformation(const char* config)
+{
+  // Lookup any existing information for this configuration.
+  std::map<cmStdString, cmComputeLinkInformation*>::iterator
+    i = this->LinkInformation.find(config?config:"");
+  if(i == this->LinkInformation.end())
+    {
+    // Compute information for this configuration.
+    cmComputeLinkInformation* info =
+      new cmComputeLinkInformation(this, config);
+    if(!info || !info->Compute())
+      {
+      delete info;
+      info = 0;
+      }
+
+    // Store the information for this configuration.
+    std::map<cmStdString, cmComputeLinkInformation*>::value_type
+      entry(config?config:"", info);
+    i = this->LinkInformation.insert(entry).first;
+    }
+  return i->second;
+}
+
 //----------------------------------------------------------------------------
 std::string cmTarget::GetFrameworkDirectory(const char* config)
 {
@@ -4870,6 +4897,29 @@ std::string cmTarget::GetMacContentDirectory(const char* config,
   return fpath;
 }
 
+//----------------------------------------------------------------------------
+cmTargetLinkInformationMap
+::cmTargetLinkInformationMap(cmTargetLinkInformationMap const& r): derived()
+{
+  // Ideally cmTarget instances should never be copied.  However until
+  // we can make a sweep to remove that, this copy constructor avoids
+  // allowing the resources (LinkInformation) from getting copied.  In
+  // the worst case this will lead to extra cmComputeLinkInformation
+  // instances.  We also enforce in debug mode that the map be emptied
+  // when copied.
+  static_cast<void>(r);
+  assert(r.empty());
+}
+
+//----------------------------------------------------------------------------
+cmTargetLinkInformationMap::~cmTargetLinkInformationMap()
+{
+  for(derived::iterator i = this->begin(); i != this->end(); ++i)
+    {
+    delete i->second;
+    }
+}
+
 //----------------------------------------------------------------------------
 cmTargetInternalPointer::cmTargetInternalPointer()
 {

Source/cmTarget.h

@@ -22,8 +22,18 @@ class cmake;
 class cmMakefile;
 class cmSourceFile;
 class cmGlobalGenerator;
+class cmComputeLinkInformation;
 class cmListFileBacktrace;
 
+struct cmTargetLinkInformationMap:
+  public std::map<cmStdString, cmComputeLinkInformation*>
+{
+  typedef std::map<cmStdString, cmComputeLinkInformation*> derived;
+  cmTargetLinkInformationMap() {}
+  cmTargetLinkInformationMap(cmTargetLinkInformationMap const& r);
+  ~cmTargetLinkInformationMap();
+};
+
 class cmTargetInternals;
 class cmTargetInternalPointer
 {
@@ -392,6 +402,8 @@ public:
   std::string GetInstallNameDirForInstallTree(const char* config,
                                               bool for_xcode = false);
 
+  cmComputeLinkInformation* GetLinkInformation(const char* config);
+
   // Get the properties
   cmPropertyMap &GetProperties() { return this->Properties; };
 
@@ -584,6 +596,8 @@ private:
   ImportInfo const* GetImportInfo(const char* config);
   void ComputeImportInfo(std::string const& desired_config, ImportInfo& info);
 
+  cmTargetLinkInformationMap LinkInformation;
+
   bool ComputeLinkInterface(const char* config, LinkInterface& iface);
 
   void ComputeLinkImplementation(const char* config,

Source/cmVisualStudio10TargetGenerator.cxx

@@ -1430,7 +1430,7 @@ cmVisualStudio10TargetGenerator::ComputeLinkOptions(std::string const& config)
   // Replace spaces in libs with ;
   cmSystemTools::ReplaceString(libs, " ", ";");
   cmComputeLinkInformation* pcli =
-    this->GeneratorTarget->GetLinkInformation(config.c_str());
+    this->Target->GetLinkInformation(config.c_str());
   if(!pcli)
     {
     cmSystemTools::Error