Merge topic 'cleanup-target-types'

ef796cc743 cmGeneratorTarget: Skip computing link implementation for custom targets
45158b2afe cmGeneratorTarget: Simplify logic in ComputeLinkInterfaceLibraries
d6b1f5704e cmGeneratorTarget: Add missing nullptr checks
7695b67500 cmComputeTargetDepends: Add missing nullptr check
95b5df8646 cmGeneratorTarget: Skip computing languages for custom targets
2f0790df50 Factor out generator checks for filtering on non-compiling targets
422d9a0ab2 Factor out generator checks for filtering out interface libraries
bce82df0aa cmGeneratorTarget: Remove unnecessary target type check in dependency tracing
...

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Kyle Edwards <kyle.edwards@kitware.com>
Merge-request: !5038

21 files changed, 186 insertions, 143 deletions

diff --git a/Source/cmComputeTargetDepends.cxx b/Source/cmComputeTargetDepends.cxx
index 6b4d110..06ad64d 100644
--- a/Source/cmComputeTargetDepends.cxx
+++ b/Source/cmComputeTargetDepends.cxx
@@ -184,7 +184,7 @@ void cmComputeTargetDepends::CollectTargetDepends(int depender_index)
 {
   // Get the depender.
   cmGeneratorTarget const* depender = this->Targets[depender_index];
-  if (depender->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!depender->IsInBuildSystem()) {
     return;
   }
 
@@ -198,16 +198,18 @@ void cmComputeTargetDepends::CollectTargetDepends(int depender_index)
     std::vector<std::string> const& configs =
       depender->Makefile->GetGeneratorConfigs(cmMakefile::IncludeEmptyConfig);
     for (std::string const& it : configs) {
-      cmLinkImplementation const* impl = depender->GetLinkImplementation(it);
-
       // A target should not depend on itself.
       emitted.insert(cmLinkItem(depender, false, cmListFileBacktrace()));
       emitted.insert(cmLinkItem(depender, true, cmListFileBacktrace()));
-      for (cmLinkImplItem const& lib : impl->Libraries) {
-        // Don't emit the same library twice for this target.
-        if (emitted.insert(lib).second) {
-          this->AddTargetDepend(depender_index, lib, true, false);
-          this->AddInterfaceDepends(depender_index, lib, it, emitted);
+
+      if (cmLinkImplementation const* impl =
+            depender->GetLinkImplementation(it)) {
+        for (cmLinkImplItem const& lib : impl->Libraries) {
+          // Don't emit the same library twice for this target.
+          if (emitted.insert(lib).second) {
+            this->AddTargetDepend(depender_index, lib, true, false);
+            this->AddInterfaceDepends(depender_index, lib, it, emitted);
+          }
         }
       }
 
@@ -356,10 +358,9 @@ void cmComputeTargetDepends::AddTargetDepend(
   int depender_index, cmGeneratorTarget const* dependee,
   cmListFileBacktrace const& dependee_backtrace, bool linking, bool cross)
 {
-  if (dependee->IsImported() ||
-      dependee->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
-    // Skip IMPORTED and INTERFACE targets but follow their utility
-    // dependencies.
+  if (!dependee->IsInBuildSystem()) {
+    // Skip targets that are not in the buildsystem but follow their
+    // utility dependencies.
     std::set<cmLinkItem> const& utils = dependee->GetUtilityItems();
     for (cmLinkItem const& i : utils) {
       if (cmGeneratorTarget const* transitive_dependee = i.Target) {
diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index b10ce89..64d4ec4 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -1089,6 +1089,27 @@ std::vector<cmCustomCommand> const& cmGeneratorTarget::GetPostBuildCommands()
   return this->Target->GetPostBuildCommands();
 }
 
+bool cmGeneratorTarget::IsInBuildSystem() const
+{
+  if (this->IsImported()) {
+    return false;
+  }
+  switch (this->Target->GetType()) {
+    case cmStateEnums::EXECUTABLE:
+    case cmStateEnums::STATIC_LIBRARY:
+    case cmStateEnums::SHARED_LIBRARY:
+    case cmStateEnums::MODULE_LIBRARY:
+    case cmStateEnums::OBJECT_LIBRARY:
+    case cmStateEnums::UTILITY:
+    case cmStateEnums::GLOBAL_TARGET:
+      return true;
+    case cmStateEnums::INTERFACE_LIBRARY:
+    case cmStateEnums::UNKNOWN_LIBRARY:
+      break;
+  }
+  return false;
+}
+
 bool cmGeneratorTarget::IsImported() const
 {
   return this->Target->IsImported();
@@ -1099,6 +1120,11 @@ bool cmGeneratorTarget::IsImportedGloballyVisible() const
   return this->Target->IsImportedGloballyVisible();
 }
 
+bool cmGeneratorTarget::CanCompileSources() const
+{
+  return this->Target->CanCompileSources();
+}
+
 const std::string& cmGeneratorTarget::GetLocationForBuild() const
 {
   static std::string location;
@@ -1365,7 +1391,7 @@ void AddSwiftImplicitIncludeDirectories(
 
     for (const cmLinkImplItem& library : libraries->Libraries) {
       if (const cmGeneratorTarget* dependency = library.Target) {
-        if (dependency->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+        if (!dependency->IsInBuildSystem()) {
           continue;
         }
         if (cm::contains(dependency->GetAllConfigCompileLanguages(),
@@ -2441,6 +2467,12 @@ private:
 cmGeneratorTarget::LinkClosure const* cmGeneratorTarget::GetLinkClosure(
   const std::string& config) const
 {
+  // There is no link implementation for targets that cannot compile sources.
+  if (!this->CanCompileSources()) {
+    static LinkClosure const empty = { {}, {} };
+    return &empty;
+  }
+
   std::string key(cmSystemTools::UpperCase(config));
   auto i = this->LinkClosureMap.find(key);
   if (i == this->LinkClosureMap.end()) {
@@ -2757,6 +2789,12 @@ const std::vector<const cmGeneratorTarget*>&
 cmGeneratorTarget::GetLinkImplementationClosure(
   const std::string& config) const
 {
+  // There is no link implementation for targets that cannot compile sources.
+  if (!this->CanCompileSources()) {
+    static std::vector<const cmGeneratorTarget*> const empty;
+    return empty;
+  }
+
   LinkImplClosure& tgts = this->LinkImplClosureMap[config];
   if (!tgts.Done) {
     tgts.Done = true;
@@ -2764,6 +2802,7 @@ cmGeneratorTarget::GetLinkImplementationClosure(
 
     cmLinkImplementationLibraries const* impl =
       this->GetLinkImplementationLibraries(config);
+    assert(impl);
 
     for (cmLinkImplItem const& lib : impl->Libraries) {
       processILibs(config, this, lib,
@@ -2813,29 +2852,26 @@ cmTargetTraceDependencies::cmTargetTraceDependencies(cmGeneratorTarget* target)
   this->CurrentEntry = nullptr;
 
   // Queue all the source files already specified for the target.
-  if (target->GetType() != cmStateEnums::INTERFACE_LIBRARY) {
-    std::set<cmSourceFile*> emitted;
-    std::vector<std::string> const& configs =
-      this->Makefile->GetGeneratorConfigs(cmMakefile::IncludeEmptyConfig);
-    for (std::string const& c : configs) {
-      std::vector<cmSourceFile*> sources;
-      this->GeneratorTarget->GetSourceFiles(sources, c);
-      for (cmSourceFile* sf : sources) {
-        const std::set<cmGeneratorTarget const*> tgts =
-          this->GlobalGenerator->GetFilenameTargetDepends(sf);
-        if (cm::contains(tgts, this->GeneratorTarget)) {
-          std::ostringstream e;
-          e << "Evaluation output file\n  \"" << sf->ResolveFullPath()
-            << "\"\ndepends on the sources of a target it is used in.  This "
-               "is a dependency loop and is not allowed.";
-          this->GeneratorTarget->LocalGenerator->IssueMessage(
-            MessageType::FATAL_ERROR, e.str());
-          return;
-        }
-        if (emitted.insert(sf).second &&
-            this->SourcesQueued.insert(sf).second) {
-          this->SourceQueue.push(sf);
-        }
+  std::set<cmSourceFile*> emitted;
+  std::vector<std::string> const& configs =
+    this->Makefile->GetGeneratorConfigs(cmMakefile::IncludeEmptyConfig);
+  for (std::string const& c : configs) {
+    std::vector<cmSourceFile*> sources;
+    this->GeneratorTarget->GetSourceFiles(sources, c);
+    for (cmSourceFile* sf : sources) {
+      const std::set<cmGeneratorTarget const*> tgts =
+        this->GlobalGenerator->GetFilenameTargetDepends(sf);
+      if (cm::contains(tgts, this->GeneratorTarget)) {
+        std::ostringstream e;
+        e << "Evaluation output file\n  \"" << sf->ResolveFullPath()
+          << "\"\ndepends on the sources of a target it is used in.  This "
+             "is a dependency loop and is not allowed.";
+        this->GeneratorTarget->LocalGenerator->IssueMessage(
+          MessageType::FATAL_ERROR, e.str());
+        return;
+      }
+      if (emitted.insert(sf).second && this->SourcesQueued.insert(sf).second) {
+        this->SourceQueue.push(sf);
       }
     }
   }
@@ -3413,23 +3449,24 @@ std::vector<BT<std::string>> cmGeneratorTarget::GetIncludeDirectories(
                       &dagChecker, entries);
 
   if (this->Makefile->IsOn("APPLE")) {
-    cmLinkImplementationLibraries const* impl =
-      this->GetLinkImplementationLibraries(config);
-    for (cmLinkImplItem const& lib : impl->Libraries) {
-      std::string libDir = cmSystemTools::CollapseFullPath(
-        lib.AsStr(), this->Makefile->GetHomeOutputDirectory());
-
-      static cmsys::RegularExpression frameworkCheck(
-        "(.*\\.framework)(/Versions/[^/]+)?/[^/]+$");
-      if (!frameworkCheck.find(libDir)) {
-        continue;
-      }
+    if (cmLinkImplementationLibraries const* impl =
+          this->GetLinkImplementationLibraries(config)) {
+      for (cmLinkImplItem const& lib : impl->Libraries) {
+        std::string libDir = cmSystemTools::CollapseFullPath(
+          lib.AsStr(), this->Makefile->GetHomeOutputDirectory());
+
+        static cmsys::RegularExpression frameworkCheck(
+          "(.*\\.framework)(/Versions/[^/]+)?/[^/]+$");
+        if (!frameworkCheck.find(libDir)) {
+          continue;
+        }
 
-      libDir = frameworkCheck.match(1);
+        libDir = frameworkCheck.match(1);
 
-      EvaluatedTargetPropertyEntry ee(lib, cmListFileBacktrace());
-      ee.Values.emplace_back(std::move(libDir));
-      entries.Entries.emplace_back(std::move(ee));
+        EvaluatedTargetPropertyEntry ee(lib, cmListFileBacktrace());
+        ee.Values.emplace_back(std::move(libDir));
+        entries.Entries.emplace_back(std::move(ee));
+      }
     }
   }
 
@@ -6524,15 +6561,20 @@ void cmGeneratorTarget::ComputeLinkInterfaceLibraries(
                           iface.HadHeadSensitiveCondition,
                           iface.HadContextSensitiveCondition,
                           iface.HadLinkLanguageSensitiveCondition);
-  } else if (!cmp0022NEW)
+    return;
+  }
+
   // If CMP0022 is NEW then the plain tll signature sets the
   // INTERFACE_LINK_LIBRARIES, so if we get here then the project
   // cleared the property explicitly and we should not fall back
   // to the link implementation.
-  {
-    // The link implementation is the default link interface.
-    cmLinkImplementationLibraries const* impl =
-      this->GetLinkImplementationLibrariesInternal(config, headTarget);
+  if (cmp0022NEW) {
+    return;
+  }
+
+  // The link implementation is the default link interface.
+  if (cmLinkImplementationLibraries const* impl =
+        this->GetLinkImplementationLibrariesInternal(config, headTarget)) {
     iface.Libraries.insert(iface.Libraries.end(), impl->Libraries.begin(),
                            impl->Libraries.end());
     if (this->GetPolicyStatusCMP0022() == cmPolicies::WARN &&
@@ -6826,8 +6868,8 @@ const cmLinkImplementation* cmGeneratorTarget::GetLinkImplementation(
 const cmLinkImplementation* cmGeneratorTarget::GetLinkImplementation(
   const std::string& config, bool secondPass) const
 {
-  // There is no link implementation for imported targets.
-  if (this->IsImported()) {
+  // There is no link implementation for targets that cannot compile sources.
+  if (!this->CanCompileSources()) {
     return nullptr;
   }
 
@@ -6990,6 +7032,11 @@ std::string cmGeneratorTarget::GetDeprecation() const
 void cmGeneratorTarget::GetLanguages(std::set<std::string>& languages,
                                      const std::string& config) const
 {
+  // Targets that do not compile anything have no languages.
+  if (!this->CanCompileSources()) {
+    return;
+  }
+
   std::vector<cmSourceFile*> sourceFiles;
   this->GetSourceFiles(sourceFiles, config);
   for (cmSourceFile* src : sourceFiles) {
@@ -7085,8 +7132,8 @@ cmLinkImplementationLibraries const*
 cmGeneratorTarget::GetLinkImplementationLibrariesInternal(
   const std::string& config, cmGeneratorTarget const* head) const
 {
-  // There is no link implementation for imported targets.
-  if (this->IsImported()) {
+  // There is no link implementation for targets that cannot compile sources.
+  if (!this->CanCompileSources()) {
     return nullptr;
   }
 
diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h
index 08aa015..4a03f65 100644
--- a/Source/cmGeneratorTarget.h
+++ b/Source/cmGeneratorTarget.h
@@ -45,8 +45,10 @@ public:
 
   cmGlobalGenerator* GetGlobalGenerator() const;
 
+  bool IsInBuildSystem() const;
   bool IsImported() const;
   bool IsImportedGloballyVisible() const;
+  bool CanCompileSources() const;
   const std::string& GetLocation(const std::string& config) const;
 
   std::vector<cmCustomCommand> const& GetPreBuildCommands() const;
diff --git a/Source/cmGlobalCommonGenerator.cxx b/Source/cmGlobalCommonGenerator.cxx
index 5eff3b8..9e5bbca 100644
--- a/Source/cmGlobalCommonGenerator.cxx
+++ b/Source/cmGlobalCommonGenerator.cxx
@@ -42,12 +42,7 @@ cmGlobalCommonGenerator::ComputeDirectoryTargets() const
     // for all targets in the directory.
     for (const auto& gt : lg->GetGeneratorTargets()) {
       cmStateEnums::TargetType const type = gt->GetType();
-      if (type != cmStateEnums::EXECUTABLE &&
-          type != cmStateEnums::STATIC_LIBRARY &&
-          type != cmStateEnums::SHARED_LIBRARY &&
-          type != cmStateEnums::MODULE_LIBRARY &&
-          type != cmStateEnums::OBJECT_LIBRARY &&
-          type != cmStateEnums::UTILITY) {
+      if (type == cmStateEnums::GLOBAL_TARGET || !gt->IsInBuildSystem()) {
         continue;
       }
       DirectoryTarget::Target t;
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index 17c7e99..eff6665 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -302,9 +302,7 @@ bool cmGlobalGenerator::CheckTargetsForMissingSources() const
   bool failed = false;
   for (const auto& localGen : this->LocalGenerators) {
     for (const auto& target : localGen->GetGeneratorTargets()) {
-      if (target->GetType() == cmStateEnums::TargetType::GLOBAL_TARGET ||
-          target->GetType() == cmStateEnums::TargetType::INTERFACE_LIBRARY ||
-          target->GetType() == cmStateEnums::TargetType::UTILITY ||
+      if (!target->CanCompileSources() ||
           cmIsOn(target->GetProperty("ghs_integrity_app"))) {
         continue;
       }
@@ -358,9 +356,7 @@ bool cmGlobalGenerator::CheckTargetsForPchCompilePdb() const
   bool failed = false;
   for (const auto& generator : this->LocalGenerators) {
     for (const auto& target : generator->GetGeneratorTargets()) {
-      if (target->GetType() == cmStateEnums::TargetType::GLOBAL_TARGET ||
-          target->GetType() == cmStateEnums::TargetType::INTERFACE_LIBRARY ||
-          target->GetType() == cmStateEnums::TargetType::UTILITY ||
+      if (!target->CanCompileSources() ||
           cmIsOn(target->GetProperty("ghs_integrity_app"))) {
         continue;
       }
@@ -1595,9 +1591,7 @@ bool cmGlobalGenerator::AddAutomaticSources()
   for (const auto& lg : this->LocalGenerators) {
     lg->CreateEvaluationFileOutputs();
     for (const auto& gt : lg->GetGeneratorTargets()) {
-      if (gt->GetType() == cmStateEnums::INTERFACE_LIBRARY ||
-          gt->GetType() == cmStateEnums::UTILITY ||
-          gt->GetType() == cmStateEnums::GLOBAL_TARGET) {
+      if (!gt->CanCompileSources()) {
         continue;
       }
       lg->AddUnityBuild(gt.get());
@@ -1609,9 +1603,7 @@ bool cmGlobalGenerator::AddAutomaticSources()
   }
   for (const auto& lg : this->LocalGenerators) {
     for (const auto& gt : lg->GetGeneratorTargets()) {
-      if (gt->GetType() == cmStateEnums::INTERFACE_LIBRARY ||
-          gt->GetType() == cmStateEnums::UTILITY ||
-          gt->GetType() == cmStateEnums::GLOBAL_TARGET) {
+      if (!gt->CanCompileSources()) {
         continue;
       }
       // Handle targets that re-use a PCH from an above-handled target.
@@ -2165,7 +2157,7 @@ bool cmGlobalGenerator::IsExcluded(cmLocalGenerator* root,
 bool cmGlobalGenerator::IsExcluded(cmLocalGenerator* root,
                                    const cmGeneratorTarget* target) const
 {
-  if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!target->IsInBuildSystem()) {
     return true;
   }
   cmMakefile* mf = root->GetMakefile();
@@ -3054,7 +3046,7 @@ void cmGlobalGenerator::WriteSummary()
 
   for (const auto& lg : this->LocalGenerators) {
     for (const auto& tgt : lg->GetGeneratorTargets()) {
-      if (tgt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+      if (!tgt->IsInBuildSystem()) {
         continue;
       }
       this->WriteSummary(tgt.get());
diff --git a/Source/cmGlobalGhsMultiGenerator.cxx b/Source/cmGlobalGhsMultiGenerator.cxx
index 1664dd0..9969465 100644
--- a/Source/cmGlobalGhsMultiGenerator.cxx
+++ b/Source/cmGlobalGhsMultiGenerator.cxx
@@ -467,7 +467,7 @@ void cmGlobalGhsMultiGenerator::WriteAllTarget(
     this->ProjectTargets.push_back(t);
   }
   for (cmGeneratorTarget const* t : sortedProjectTargets) {
-    if (t->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!t->IsInBuildSystem()) {
       continue;
     }
     if (!IsExcluded(t->GetLocalGenerator(), t)) {
diff --git a/Source/cmGlobalNinjaGenerator.cxx b/Source/cmGlobalNinjaGenerator.cxx
index b52dd28..2ef202d 100644
--- a/Source/cmGlobalNinjaGenerator.cxx
+++ b/Source/cmGlobalNinjaGenerator.cxx
@@ -1105,8 +1105,9 @@ void cmGlobalNinjaGenerator::AppendTargetOutputs(
       break;
     }
 
-    default:
-      return;
+    case cmStateEnums::INTERFACE_LIBRARY:
+    case cmStateEnums::UNKNOWN_LIBRARY:
+      break;
   }
 }
 
@@ -1128,7 +1129,7 @@ void cmGlobalNinjaGenerator::AppendTargetDepends(
     cmNinjaDeps outs;
     for (cmTargetDepend const& targetDep :
          this->GetTargetDirectDepends(target)) {
-      if (targetDep->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+      if (!targetDep->IsInBuildSystem()) {
         continue;
       }
       if (targetDep.IsCross()) {
@@ -1170,7 +1171,7 @@ void cmGlobalNinjaGenerator::AppendTargetDependsClosure(
     cmNinjaOuts this_outs; // this will be the new cache entry
 
     for (auto const& dep_target : this->GetTargetDirectDepends(target)) {
-      if (dep_target->GetType() == cmStateEnums::INTERFACE_LIBRARY ||
+      if (!dep_target->IsInBuildSystem() ||
           (this->EnableCrossConfigBuild() && !dep_target.IsCross())) {
         continue;
       }
diff --git a/Source/cmGlobalUnixMakefileGenerator3.cxx b/Source/cmGlobalUnixMakefileGenerator3.cxx
index 1764429..ebc90b6 100644
--- a/Source/cmGlobalUnixMakefileGenerator3.cxx
+++ b/Source/cmGlobalUnixMakefileGenerator3.cxx
@@ -845,8 +845,7 @@ void cmGlobalUnixMakefileGenerator3::InitializeProgressMarks()
     for (const auto& gt : lg->GetGeneratorTargets()) {
       cmLocalGenerator* tlg = gt->GetLocalGenerator();
 
-      if (gt->GetType() == cmStateEnums::INTERFACE_LIBRARY ||
-          IsExcluded(lg.get(), gt.get())) {
+      if (!gt->IsInBuildSystem() || IsExcluded(lg.get(), gt.get())) {
         continue;
       }
 
@@ -881,7 +880,7 @@ size_t cmGlobalUnixMakefileGenerator3::CountProgressMarksInTarget(
   if (emitted.insert(target).second) {
     count = this->ProgressMap[target].Marks.size();
     for (cmTargetDepend const& depend : this->GetTargetDirectDepends(target)) {
-      if (depend->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+      if (!depend->IsInBuildSystem()) {
         continue;
       }
       count += this->CountProgressMarksInTarget(depend, emitted);
@@ -938,7 +937,7 @@ void cmGlobalUnixMakefileGenerator3::AppendGlobalTargetDepends(
   for (cmTargetDepend const& i : this->GetTargetDirectDepends(target)) {
     // Create the target-level dependency.
     cmGeneratorTarget const* dep = i;
-    if (dep->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!dep->IsInBuildSystem()) {
       continue;
     }
     cmLocalUnixMakefileGenerator3* lg3 =
diff --git a/Source/cmGlobalVisualStudio7Generator.cxx b/Source/cmGlobalVisualStudio7Generator.cxx
index c851eea..f8b438a 100644
--- a/Source/cmGlobalVisualStudio7Generator.cxx
+++ b/Source/cmGlobalVisualStudio7Generator.cxx
@@ -339,7 +339,7 @@ void cmGlobalVisualStudio7Generator::WriteTargetConfigurations(
   // loop over again and write out configurations for each target
   // in the solution
   for (cmGeneratorTarget const* target : projectTargets) {
-    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!target->IsInBuildSystem()) {
       continue;
     }
     cmProp expath = target->GetProperty("EXTERNAL_MSPROJECT");
@@ -369,7 +369,7 @@ void cmGlobalVisualStudio7Generator::WriteTargetsToSolution(
 
   std::string rootBinaryDir = root->GetCurrentBinaryDirectory();
   for (cmGeneratorTarget const* target : projectTargets) {
-    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!target->IsInBuildSystem()) {
       continue;
     }
     bool written = false;
@@ -436,7 +436,7 @@ void cmGlobalVisualStudio7Generator::WriteTargetDepends(
   std::ostream& fout, OrderedTargetDependSet const& projectTargets)
 {
   for (cmGeneratorTarget const* target : projectTargets) {
-    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!target->IsInBuildSystem()) {
       continue;
     }
     cmProp vcprojName = target->GetProperty("GENERATOR_FILE_NAME");
diff --git a/Source/cmGlobalVisualStudio8Generator.cxx b/Source/cmGlobalVisualStudio8Generator.cxx
index 29ca154..fcdfc50 100644
--- a/Source/cmGlobalVisualStudio8Generator.cxx
+++ b/Source/cmGlobalVisualStudio8Generator.cxx
@@ -325,7 +325,7 @@ void cmGlobalVisualStudio8Generator::WriteProjectDepends(
   TargetDependSet const& unordered = this->GetTargetDirectDepends(gt);
   OrderedTargetDependSet depends(unordered, std::string());
   for (cmTargetDepend const& i : depends) {
-    if (i->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!i->IsInBuildSystem()) {
       continue;
     }
     std::string guid = this->GetGUID(i->GetName());
@@ -341,7 +341,7 @@ bool cmGlobalVisualStudio8Generator::NeedLinkLibraryDependencies(
     if (cmGeneratorTarget* depTarget =
           target->GetLocalGenerator()->FindGeneratorTargetToUse(
             ui.Value.first)) {
-      if (depTarget->GetType() != cmStateEnums::INTERFACE_LIBRARY &&
+      if (depTarget->IsInBuildSystem() &&
           depTarget->GetProperty("EXTERNAL_MSPROJECT")) {
         // This utility dependency names an external .vcproj target.
         // We use LinkLibraryDependencies="true" to link to it without
diff --git a/Source/cmGlobalVisualStudioGenerator.cxx b/Source/cmGlobalVisualStudioGenerator.cxx
index b31d069..001d876 100644
--- a/Source/cmGlobalVisualStudioGenerator.cxx
+++ b/Source/cmGlobalVisualStudioGenerator.cxx
@@ -368,7 +368,7 @@ cmGlobalVisualStudioGenerator::GetTargetLinkClosure(cmGeneratorTarget* target)
 void cmGlobalVisualStudioGenerator::FollowLinkDepends(
   const cmGeneratorTarget* target, std::set<const cmGeneratorTarget*>& linked)
 {
-  if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!target->IsInBuildSystem()) {
     return;
   }
   if (linked.insert(target).second &&
diff --git a/Source/cmGlobalXCodeGenerator.cxx b/Source/cmGlobalXCodeGenerator.cxx
index f632257..26f0bec 100644
--- a/Source/cmGlobalXCodeGenerator.cxx
+++ b/Source/cmGlobalXCodeGenerator.cxx
@@ -1199,7 +1199,7 @@ bool cmGlobalXCodeGenerator::CreateXCodeTarget(
     return true;
   }
 
-  if (gtgt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!gtgt->IsInBuildSystem()) {
     return true;
   }
 
@@ -1845,7 +1845,7 @@ void cmGlobalXCodeGenerator::CreateBuildSettings(cmGeneratorTarget* gtgt,
                                                  cmXCodeObject* buildSettings,
                                                  const std::string& configName)
 {
-  if (gtgt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!gtgt->IsInBuildSystem()) {
     return;
   }
 
@@ -2678,7 +2678,7 @@ const char* cmGlobalXCodeGenerator::GetTargetProductType(
 cmXCodeObject* cmGlobalXCodeGenerator::CreateXCodeTarget(
   cmGeneratorTarget* gtgt, cmXCodeObject* buildPhases)
 {
-  if (gtgt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!gtgt->IsInBuildSystem()) {
     return nullptr;
   }
   cmXCodeObject* target = this->CreateObject(cmXCodeObject::PBXNativeTarget);
@@ -2821,7 +2821,7 @@ void cmGlobalXCodeGenerator::AddDependAndLinkInformation(cmXCodeObject* target)
     cmSystemTools::Error("Error no target on xobject\n");
     return;
   }
-  if (gt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!gt->IsInBuildSystem()) {
     return;
   }
 
@@ -3113,13 +3113,9 @@ bool cmGlobalXCodeGenerator::CreateGroups(
       // end up with (empty anyhow) ZERO_CHECK, install, or test source
       // groups:
       //
-      if (gtgt->GetType() == cmStateEnums::GLOBAL_TARGET) {
-        continue;
-      }
-      if (gtgt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
-        continue;
-      }
-      if (gtgt->GetName() == CMAKE_CHECK_BUILD_SYSTEM_TARGET) {
+      if (!gtgt->IsInBuildSystem() ||
+          gtgt->GetType() == cmStateEnums::GLOBAL_TARGET ||
+          gtgt->GetName() == CMAKE_CHECK_BUILD_SYSTEM_TARGET) {
         continue;
       }
 
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index 028053d..646cf5e 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -284,7 +284,7 @@ void cmLocalGenerator::TraceDependencies()
   // Generate the rule files for each target.
   const auto& targets = this->GetGeneratorTargets();
   for (const auto& target : targets) {
-    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!target->IsInBuildSystem()) {
       continue;
     }
     target->TraceDependencies();
@@ -760,7 +760,7 @@ void cmLocalGenerator::ComputeTargetManifest()
   // Add our targets to the manifest for each configuration.
   const auto& targets = this->GetGeneratorTargets();
   for (const auto& target : targets) {
-    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!target->IsInBuildSystem()) {
       continue;
     }
     for (std::string const& c : configNames) {
@@ -797,7 +797,7 @@ bool cmLocalGenerator::ComputeTargetCompileFeatures()
 
     // Now that C/C++ _STANDARD values have been computed
     // set the values to ObjC/ObjCXX _STANDARD variables
-    if (target->GetType() != cmStateEnums::INTERFACE_LIBRARY) {
+    if (target->CanCompileSources()) {
       for (std::string const& c : configNames) {
         target->ComputeCompileFeatures(c, inferredEnabledLanguages);
       }
diff --git a/Source/cmLocalGhsMultiGenerator.cxx b/Source/cmLocalGhsMultiGenerator.cxx
index 098fa5a..a23ad57 100644
--- a/Source/cmLocalGhsMultiGenerator.cxx
+++ b/Source/cmLocalGhsMultiGenerator.cxx
@@ -11,7 +11,6 @@
 #include "cmGhsMultiTargetGenerator.h"
 #include "cmGlobalGenerator.h"
 #include "cmSourceFile.h"
-#include "cmStateTypes.h"
 #include "cmStringAlgorithms.h"
 #include "cmSystemTools.h"
 
@@ -33,7 +32,7 @@ std::string cmLocalGhsMultiGenerator::GetTargetDirectory(
 void cmLocalGhsMultiGenerator::GenerateTargetsDepthFirst(
   cmGeneratorTarget* target, std::vector<cmGeneratorTarget*>& remaining)
 {
-  if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!target->IsInBuildSystem()) {
     return;
   }
   // Find this target in the list of remaining targets.
diff --git a/Source/cmLocalNinjaGenerator.cxx b/Source/cmLocalNinjaGenerator.cxx
index c47a9b2..ef34953 100644
--- a/Source/cmLocalNinjaGenerator.cxx
+++ b/Source/cmLocalNinjaGenerator.cxx
@@ -90,7 +90,7 @@ void cmLocalNinjaGenerator::Generate()
   }
 
   for (const auto& target : this->GetGeneratorTargets()) {
-    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!target->IsInBuildSystem()) {
       continue;
     }
     auto tg = cmNinjaTargetGenerator::New(target.get());
diff --git a/Source/cmLocalUnixMakefileGenerator3.cxx b/Source/cmLocalUnixMakefileGenerator3.cxx
index df4bf6a..23e2a94 100644
--- a/Source/cmLocalUnixMakefileGenerator3.cxx
+++ b/Source/cmLocalUnixMakefileGenerator3.cxx
@@ -101,7 +101,7 @@ void cmLocalUnixMakefileGenerator3::Generate()
   cmGlobalUnixMakefileGenerator3* gg =
     static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
   for (const auto& target : this->GetGeneratorTargets()) {
-    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!target->IsInBuildSystem()) {
       continue;
     }
     std::unique_ptr<cmMakefileTargetGenerator> tg(
@@ -137,7 +137,7 @@ void cmLocalUnixMakefileGenerator3::GetLocalObjectFiles(
   std::map<std::string, LocalObjectInfo>& localObjectFiles)
 {
   for (const auto& gt : this->GetGeneratorTargets()) {
-    if (gt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!gt->CanCompileSources()) {
       continue;
     }
     std::vector<cmSourceFile const*> objectSources;
diff --git a/Source/cmLocalVisualStudio10Generator.cxx b/Source/cmLocalVisualStudio10Generator.cxx
index 9076e26..6c7d6c6 100644
--- a/Source/cmLocalVisualStudio10Generator.cxx
+++ b/Source/cmLocalVisualStudio10Generator.cxx
@@ -69,7 +69,7 @@ cmLocalVisualStudio10Generator::~cmLocalVisualStudio10Generator()
 void cmLocalVisualStudio10Generator::GenerateTargetsDepthFirst(
   cmGeneratorTarget* target, std::vector<cmGeneratorTarget*>& remaining)
 {
-  if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+  if (!target->IsInBuildSystem()) {
     return;
   }
   // Find this target in the list of remaining targets.
diff --git a/Source/cmLocalVisualStudio7Generator.cxx b/Source/cmLocalVisualStudio7Generator.cxx
index ad61ad3..fec6a9d 100644
--- a/Source/cmLocalVisualStudio7Generator.cxx
+++ b/Source/cmLocalVisualStudio7Generator.cxx
@@ -66,7 +66,7 @@ void cmLocalVisualStudio7Generator::AddHelperCommands()
   // Now create GUIDs for targets
   const auto& tgts = this->GetGeneratorTargets();
   for (const auto& l : tgts) {
-    if (l->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!l->IsInBuildSystem()) {
       continue;
     }
     cmProp path = l->GetProperty("EXTERNAL_MSPROJECT");
@@ -129,7 +129,7 @@ void cmLocalVisualStudio7Generator::WriteProjectFiles()
 
   // Create the project file for each target.
   for (const auto& l : tgts) {
-    if (l->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!l->IsInBuildSystem()) {
       continue;
     }
     // INCLUDE_EXTERNAL_MSPROJECT command only affects the workspace
diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index aec9afa..70bffa6 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -272,8 +272,7 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
   };
 
   // Setup default property values.
-  if (this->GetType() != cmStateEnums::INTERFACE_LIBRARY &&
-      this->GetType() != cmStateEnums::UTILITY) {
+  if (this->CanCompileSources()) {
     initProp("ANDROID_API");
     initProp("ANDROID_API_MIN");
     initProp("ANDROID_ARCH");
@@ -343,10 +342,12 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
     initProp("C_STANDARD");
     initProp("C_STANDARD_REQUIRED");
     initProp("C_EXTENSIONS");
+    initProp("C_VISIBILITY_PRESET");
     initProp("OBJC_COMPILER_LAUNCHER");
     initProp("OBJC_STANDARD");
     initProp("OBJC_STANDARD_REQUIRED");
     initProp("OBJC_EXTENSIONS");
+    initProp("OBJC_VISIBILITY_PRESET");
     initProp("CXX_CLANG_TIDY");
     initProp("CXX_COMPILER_LAUNCHER");
     initProp("CXX_CPPLINT");
@@ -355,10 +356,12 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
     initProp("CXX_STANDARD");
     initProp("CXX_STANDARD_REQUIRED");
     initProp("CXX_EXTENSIONS");
+    initProp("CXX_VISIBILITY_PRESET");
     initProp("OBJCXX_COMPILER_LAUNCHER");
     initProp("OBJCXX_STANDARD");
     initProp("OBJCXX_STANDARD_REQUIRED");
     initProp("OBJCXX_EXTENSIONS");
+    initProp("OBJCXX_VISIBILITY_PRESET");
     initProp("CUDA_STANDARD");
     initProp("CUDA_STANDARD_REQUIRED");
     initProp("CUDA_EXTENSIONS");
@@ -367,6 +370,11 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
     initProp("CUDA_RESOLVE_DEVICE_SYMBOLS");
     initProp("CUDA_RUNTIME_LIBRARY");
     initProp("CUDA_ARCHITECTURES");
+    initProp("CUDA_VISIBILITY_PRESET");
+    initProp("VISIBILITY_INLINES_HIDDEN");
+    initProp("JOB_POOL_COMPILE");
+    initProp("JOB_POOL_LINK");
+    initProp("JOB_POOL_PRECOMPILE_HEADER");
     initProp("LINK_SEARCH_START_STATIC");
     initProp("LINK_SEARCH_END_STATIC");
     initProp("Swift_LANGUAGE_VERSION");
@@ -410,7 +418,8 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
   }
 
   // Setup per-configuration property default values.
-  if (this->GetType() != cmStateEnums::UTILITY) {
+  if (this->GetType() != cmStateEnums::UTILITY &&
+      this->GetType() != cmStateEnums::GLOBAL_TARGET) {
     static const auto configProps = {
       /* clang-format needs this comment to break after the opening brace */
       "ARCHIVE_OUTPUT_DIRECTORY_",     "LIBRARY_OUTPUT_DIRECTORY_",
@@ -487,16 +496,6 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
                impl->Makefile->GetLinkDirectoriesBacktraces());
   }
 
-  if (this->GetType() != cmStateEnums::INTERFACE_LIBRARY &&
-      this->GetType() != cmStateEnums::UTILITY) {
-    initProp("C_VISIBILITY_PRESET");
-    initProp("CXX_VISIBILITY_PRESET");
-    initProp("OBJC_VISIBILITY_PRESET");
-    initProp("OBJCXX_VISIBILITY_PRESET");
-    initProp("CUDA_VISIBILITY_PRESET");
-    initProp("VISIBILITY_INLINES_HIDDEN");
-  }
-
   if (impl->TargetType == cmStateEnums::EXECUTABLE) {
     initProp("ANDROID_GUI");
     initProp("CROSSCOMPILING_EMULATOR");
@@ -505,6 +504,8 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
   if (impl->TargetType == cmStateEnums::SHARED_LIBRARY ||
       impl->TargetType == cmStateEnums::MODULE_LIBRARY) {
     this->SetProperty("POSITION_INDEPENDENT_CODE", "True");
+  } else if (this->CanCompileSources()) {
+    initProp("POSITION_INDEPENDENT_CODE");
   }
   if (impl->TargetType == cmStateEnums::SHARED_LIBRARY ||
       impl->TargetType == cmStateEnums::EXECUTABLE) {
@@ -512,11 +513,6 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
     initProp("WINDOWS_EXPORT_ALL_SYMBOLS");
   }
 
-  if (this->GetType() != cmStateEnums::INTERFACE_LIBRARY &&
-      this->GetType() != cmStateEnums::UTILITY) {
-    initProp("POSITION_INDEPENDENT_CODE");
-  }
-
   // Record current policies for later use.
   impl->Makefile->RecordPolicies(impl->PolicyMap);
 
@@ -528,13 +524,6 @@ cmTarget::cmTarget(std::string const& name, cmStateEnums::TargetType type,
     impl->PolicyMap.Set(cmPolicies::CMP0022, cmPolicies::NEW);
   }
 
-  if (this->GetType() != cmStateEnums::INTERFACE_LIBRARY &&
-      this->GetType() != cmStateEnums::UTILITY) {
-    initProp("JOB_POOL_COMPILE");
-    initProp("JOB_POOL_LINK");
-    initProp("JOB_POOL_PRECOMPILE_HEADER");
-  }
-
   if (impl->TargetType <= cmStateEnums::GLOBAL_TARGET) {
     initProp("DOTNET_TARGET_FRAMEWORK");
     initProp("DOTNET_TARGET_FRAMEWORK_VERSION");
@@ -1917,6 +1906,27 @@ bool cmTarget::IsPerConfig() const
   return impl->PerConfig;
 }
 
+bool cmTarget::CanCompileSources() const
+{
+  if (this->IsImported()) {
+    return false;
+  }
+  switch (this->GetType()) {
+    case cmStateEnums::EXECUTABLE:
+    case cmStateEnums::STATIC_LIBRARY:
+    case cmStateEnums::SHARED_LIBRARY:
+    case cmStateEnums::MODULE_LIBRARY:
+    case cmStateEnums::OBJECT_LIBRARY:
+      return true;
+    case cmStateEnums::UTILITY:
+    case cmStateEnums::INTERFACE_LIBRARY:
+    case cmStateEnums::GLOBAL_TARGET:
+    case cmStateEnums::UNKNOWN_LIBRARY:
+      break;
+  }
+  return false;
+}
+
 const char* cmTarget::GetSuffixVariableInternal(
   cmStateEnums::ArtifactType artifact) const
 {
diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index 7a16de8..43f1887 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -196,6 +196,7 @@ public:
   bool IsImported() const;
   bool IsImportedGloballyVisible() const;
   bool IsPerConfig() const;
+  bool CanCompileSources() const;
 
   bool GetMappedConfig(std::string const& desired_config, cmProp& loc,
                        cmProp& imp, std::string& suffix) const;
diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index a06dab3..6369c1f 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -4144,7 +4144,7 @@ void cmVisualStudio10TargetGenerator::WriteProjectReferences(Elem& e0)
   Elem e1(e0, "ItemGroup");
   e1.SetHasElements();
   for (cmGeneratorTarget const* dt : depends) {
-    if (dt->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
+    if (!dt->IsInBuildSystem()) {
       continue;
     }
     // skip fortran targets as they can not be processed by MSBuild