cmCommonTargetGenerator: Adopt GetFeature and friends

De-duplicate the GetFeature, GetFeatureAsBool, and AddFeatureFlags
members from the Makefile and Ninja target generators.

Source/cmCommonTargetGenerator.cxx

@@ -35,3 +35,29 @@ std::string const& cmCommonTargetGenerator::GetConfigName() const
 {
   return this->ConfigName;
 }
+
+//----------------------------------------------------------------------------
+const char* cmCommonTargetGenerator::GetFeature(const std::string& feature)
+{
+  return this->GeneratorTarget->GetFeature(feature, this->ConfigName);
+}
+
+//----------------------------------------------------------------------------
+bool cmCommonTargetGenerator::GetFeatureAsBool(const std::string& feature)
+{
+  return this->GeneratorTarget->GetFeatureAsBool(feature, this->ConfigName);
+}
+
+//----------------------------------------------------------------------------
+void cmCommonTargetGenerator::AddFeatureFlags(
+  std::string& flags, const std::string& lang
+  )
+{
+  // Add language-specific flags.
+  this->LocalGenerator->AddLanguageFlags(flags, lang, this->ConfigName);
+
+  if(this->GetFeatureAsBool("INTERPROCEDURAL_OPTIMIZATION"))
+    {
+    this->LocalGenerator->AppendFeatureOptions(flags, lang, "IPO");
+    }
+}

Source/cmCommonTargetGenerator.h

@@ -32,6 +32,14 @@ public:
   std::string const& GetConfigName() const;
 
 protected:
+
+  // Add language feature flags.
+  void AddFeatureFlags(std::string& flags, const std::string& lang);
+
+  // Feature query methods.
+  const char* GetFeature(const std::string& feature);
+  bool GetFeatureAsBool(const std::string& feature);
+
   cmGeneratorTarget* GeneratorTarget;
   cmTarget* Target;
   cmMakefile* Makefile;

Source/cmMakefileTargetGenerator.cxx

@@ -2099,29 +2099,3 @@ void cmMakefileTargetGenerator::AddModuleDefinitionFlag(std::string& flags)
   flag += (this->LocalGenerator->ConvertToLinkReference(def));
   this->LocalGenerator->AppendFlags(flags, flag);
 }
-
-//----------------------------------------------------------------------------
-const char* cmMakefileTargetGenerator::GetFeature(const std::string& feature)
-{
-  return this->GeneratorTarget->GetFeature(feature, this->ConfigName);
-}
-
-//----------------------------------------------------------------------------
-bool cmMakefileTargetGenerator::GetFeatureAsBool(const std::string& feature)
-{
-  return this->GeneratorTarget->GetFeatureAsBool(feature, this->ConfigName);
-}
-
-//----------------------------------------------------------------------------
-void cmMakefileTargetGenerator::AddFeatureFlags(
-  std::string& flags, const std::string& lang
-  )
-{
-  // Add language-specific flags.
-  this->LocalGenerator->AddLanguageFlags(flags, lang, this->ConfigName);
-
-  if(this->GetFeatureAsBool("INTERPROCEDURAL_OPTIMIZATION"))
-    {
-    this->LocalGenerator->AppendFeatureOptions(flags, lang, "IPO");
-    }
-}

Source/cmMakefileTargetGenerator.h

@@ -258,13 +258,6 @@ protected:
   // Helper to add flag for windows .def file.
   void AddModuleDefinitionFlag(std::string& flags);
 
-  // Add language feature flags.
-  void AddFeatureFlags(std::string& flags, const std::string& lang);
-
-  // Feature query methods.
-  const char* GetFeature(const std::string& feature);
-  bool GetFeatureAsBool(const std::string& feature);
-
   //==================================================================
   // Convenience routines that do nothing more than forward to
   // implementaitons

Source/cmNinjaTargetGenerator.cxx

@@ -96,32 +96,6 @@ std::string cmNinjaTargetGenerator::LanguageCompilerRule(
     cmGlobalNinjaGenerator::EncodeRuleName(this->Target->GetName());
 }
 
-// TODO: Picked up from cmMakefileTargetGenerator.  Refactor it.
-const char* cmNinjaTargetGenerator::GetFeature(const std::string& feature)
-{
-  return this->GeneratorTarget->GetFeature(feature, this->GetConfigName());
-}
-
-// TODO: Picked up from cmMakefileTargetGenerator.  Refactor it.
-bool cmNinjaTargetGenerator::GetFeatureAsBool(const std::string& feature)
-{
-  return this->GeneratorTarget->GetFeatureAsBool(feature,
-                                                 this->GetConfigName());
-}
-
-// TODO: Picked up from cmMakefileTargetGenerator.  Refactor it.
-void cmNinjaTargetGenerator::AddFeatureFlags(std::string& flags,
-                                             const std::string& lang)
-{
-  // Add language-specific flags.
-  this->LocalGenerator->AddLanguageFlags(flags, lang, this->GetConfigName());
-
-  if(this->GetFeatureAsBool("INTERPROCEDURAL_OPTIMIZATION"))
-    {
-    this->LocalGenerator->AppendFeatureOptions(flags, lang, "IPO");
-    }
-}
-
 std::string
 cmNinjaTargetGenerator::OrderDependsTargetForTarget()
 {

Source/cmNinjaTargetGenerator.h

@@ -69,10 +69,6 @@ protected:
 
   std::string LanguageCompilerRule(const std::string& lang) const;
 
-  const char* GetFeature(const std::string& feature);
-  bool GetFeatureAsBool(const std::string& feature);
-  void AddFeatureFlags(std::string& flags, const std::string& lang);
-
   std::string OrderDependsTargetForTarget();
 
   std::string ComputeOrderDependsForTarget();