Refactor checks for whether a target has an import library

Use `HasImportLibrary` for such checks.

Source/cmComputeLinkInformation.cxx

@@ -268,10 +268,6 @@ cmComputeLinkInformation::cmComputeLinkInformation(
     return;
   }
 
-  // Check whether we should use an import library for linking a target.
-  this->UseImportLibrary =
-    this->Makefile->IsDefinitionSet("CMAKE_IMPORT_LIBRARY_SUFFIX");
-
   // Check whether we should skip dependencies on shared library files.
   this->LinkDependsNoShared =
     this->Target->GetPropertyAsBool("LINK_DEPENDS_NO_SHARED");
@@ -280,7 +276,7 @@ cmComputeLinkInformation::cmComputeLinkInformation(
   // to use when creating a plugin (module) that obtains symbols from
   // the program that will load it.
   this->LoaderFlag = nullptr;
-  if (!this->UseImportLibrary &&
+  if (!this->Target->IsDLLPlatform() &&
       this->Target->GetType() == cmStateEnums::MODULE_LIBRARY) {
     std::string loader_flag_var = "CMAKE_SHARED_MODULE_LOADER_";
     loader_flag_var += this->LinkLanguage;
@@ -493,9 +489,7 @@ bool cmComputeLinkInformation::Compute()
     std::set<cmGeneratorTarget const*> const& wrongItems =
       cld.GetOldWrongConfigItems();
     for (cmGeneratorTarget const* tgt : wrongItems) {
-      bool implib = (this->UseImportLibrary &&
-                     (tgt->GetType() == cmStateEnums::SHARED_LIBRARY));
-      cmStateEnums::ArtifactType artifact = implib
+      cmStateEnums::ArtifactType artifact = tgt->HasImportLibrary(this->Config)
         ? cmStateEnums::ImportLibraryArtifact
         : cmStateEnums::RuntimeBinaryArtifact;
       this->OldLinkDirItems.push_back(
@@ -578,7 +572,7 @@ void cmComputeLinkInformation::AddItem(std::string const& item,
   // Compute the proper name to use to link this library.
   const std::string& config = this->Config;
   bool impexe = (tgt && tgt->IsExecutableWithExports());
-  if (impexe && !this->UseImportLibrary && !this->LoaderFlag) {
+  if (impexe && !tgt->HasImportLibrary(config) && !this->LoaderFlag) {
     // Skip linking to executables on platforms with no import
     // libraries or loader flags.
     return;
@@ -592,7 +586,7 @@ void cmComputeLinkInformation::AddItem(std::string const& item,
       // platform.  Add it now.
       std::string linkItem;
       linkItem = this->LoaderFlag;
-      cmStateEnums::ArtifactType artifact = this->UseImportLibrary
+      cmStateEnums::ArtifactType artifact = tgt->HasImportLibrary(config)
         ? cmStateEnums::ImportLibraryArtifact
         : cmStateEnums::RuntimeBinaryArtifact;
 
@@ -616,10 +610,7 @@ void cmComputeLinkInformation::AddItem(std::string const& item,
       // Its object-files should already have been extracted for linking.
     } else {
       // Decide whether to use an import library.
-      bool implib =
-        (this->UseImportLibrary &&
-         (impexe || tgt->GetType() == cmStateEnums::SHARED_LIBRARY));
-      cmStateEnums::ArtifactType artifact = implib
+      cmStateEnums::ArtifactType artifact = tgt->HasImportLibrary(config)
         ? cmStateEnums::ImportLibraryArtifact
         : cmStateEnums::RuntimeBinaryArtifact;
 
@@ -694,7 +685,7 @@ void cmComputeLinkInformation::AddSharedDepItem(std::string const& item,
   // linked will be able to find it.
   std::string lib;
   if (tgt) {
-    cmStateEnums::ArtifactType artifact = this->UseImportLibrary
+    cmStateEnums::ArtifactType artifact = tgt->HasImportLibrary(this->Config)
       ? cmStateEnums::ImportLibraryArtifact
       : cmStateEnums::RuntimeBinaryArtifact;
     lib = tgt->GetFullPath(this->Config, artifact);

Source/cmComputeLinkInformation.h

@@ -179,7 +179,6 @@ private:
   bool OldLinkDirMode;
   bool OpenBSD;
   bool LinkDependsNoShared;
-  bool UseImportLibrary;
   bool RuntimeUseChrpath;
   bool NoSONameUsesPath;
   bool LinkWithRuntimePath;

Source/cmExportBuildFileGenerator.cxx

@@ -236,14 +236,15 @@ void cmExportBuildFileGenerator::SetImportLocationProperty(
     }
 
     // Add the import library for windows DLLs.
-    if (target->HasImportLibrary(config) &&
-        mf->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX")) {
+    if (target->HasImportLibrary(config)) {
       std::string prop = "IMPORTED_IMPLIB";
       prop += suffix;
       std::string value =
         target->GetFullPath(config, cmStateEnums::ImportLibraryArtifact);
-      target->GetImplibGNUtoMS(config, value, value,
-                               "${CMAKE_IMPORT_LIBRARY_SUFFIX}");
+      if (mf->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX")) {
+        target->GetImplibGNUtoMS(config, value, value,
+                                 "${CMAKE_IMPORT_LIBRARY_SUFFIX}");
+      }
       properties[prop] = value;
     }
   }

Source/cmFileAPICodemodel.cxx

@@ -1076,17 +1076,16 @@ Json::Value Target::DumpArtifacts()
   }
 
   // Add Windows-specific artifacts produced by the linker.
+  if (this->GT->HasImportLibrary(this->Config)) {
+    Json::Value artifact = Json::objectValue;
+    artifact["path"] =
+      RelativeIfUnder(this->TopBuild,
+                      this->GT->GetFullPath(
+                        this->Config, cmStateEnums::ImportLibraryArtifact));
+    artifacts.append(std::move(artifact)); // NOLINT(*)
+  }
   if (this->GT->IsDLLPlatform() &&
       this->GT->GetType() != cmStateEnums::STATIC_LIBRARY) {
-    if (this->GT->GetType() == cmStateEnums::SHARED_LIBRARY ||
-        this->GT->IsExecutableWithExports()) {
-      Json::Value artifact = Json::objectValue;
-      artifact["path"] =
-        RelativeIfUnder(this->TopBuild,
-                        this->GT->GetFullPath(
-                          this->Config, cmStateEnums::ImportLibraryArtifact));
-      artifacts.append(std::move(artifact)); // NOLINT(*)
-    }
     cmGeneratorTarget::OutputInfo const* output =
       this->GT->GetOutputInfo(this->Config);
     if (output && !output->PdbDir.empty()) {

Source/cmGeneratorTarget.cxx

@@ -468,7 +468,7 @@ std::string cmGeneratorTarget::GetFilePrefix(
   const std::string& config, cmStateEnums::ArtifactType artifact) const
 {
   if (this->IsImported()) {
-    const char* prefix = this->GetFilePrefixInternal(artifact);
+    const char* prefix = this->GetFilePrefixInternal(config, artifact);
 
     return prefix ? prefix : std::string();
   }
@@ -481,7 +481,7 @@ std::string cmGeneratorTarget::GetFileSuffix(
   const std::string& config, cmStateEnums::ArtifactType artifact) const
 {
   if (this->IsImported()) {
-    const char* suffix = this->GetFileSuffixInternal(artifact);
+    const char* suffix = this->GetFileSuffixInternal(config, artifact);
 
     return suffix ? suffix : std::string();
   }
@@ -508,7 +508,8 @@ std::string cmGeneratorTarget::GetFilePostfix(const std::string& config) const
 }
 
 const char* cmGeneratorTarget::GetFilePrefixInternal(
-  cmStateEnums::ArtifactType artifact, const std::string& language) const
+  std::string const& config, cmStateEnums::ArtifactType artifact,
+  const std::string& language) const
 {
   // no prefix for non-main target types.
   if (this->GetType() != cmStateEnums::STATIC_LIBRARY &&
@@ -523,8 +524,7 @@ const char* cmGeneratorTarget::GetFilePrefixInternal(
 
   // Return an empty prefix for the import library if this platform
   // does not support import libraries.
-  if (isImportedLibraryArtifact &&
-      !this->Makefile->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX")) {
+  if (isImportedLibraryArtifact && !this->NeedImportLibraryName(config)) {
     return nullptr;
   }
 
@@ -558,7 +558,8 @@ const char* cmGeneratorTarget::GetFilePrefixInternal(
   return targetPrefix;
 }
 const char* cmGeneratorTarget::GetFileSuffixInternal(
-  cmStateEnums::ArtifactType artifact, const std::string& language) const
+  std::string const& config, cmStateEnums::ArtifactType artifact,
+  const std::string& language) const
 {
   // no suffix for non-main target types.
   if (this->GetType() != cmStateEnums::STATIC_LIBRARY &&
@@ -573,8 +574,7 @@ const char* cmGeneratorTarget::GetFileSuffixInternal(
 
   // Return an empty suffix for the import library if this platform
   // does not support import libraries.
-  if (isImportedLibraryArtifact &&
-      !this->Makefile->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX")) {
+  if (isImportedLibraryArtifact && !this->NeedImportLibraryName(config)) {
     return nullptr;
   }
 
@@ -3924,8 +3924,7 @@ void cmGeneratorTarget::GetFullNameInternal(
 
   // Return an empty name for the import library if this platform
   // does not support import libraries.
-  if (isImportedLibraryArtifact &&
-      !this->Makefile->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX")) {
+  if (isImportedLibraryArtifact && !this->NeedImportLibraryName(config)) {
     outPrefix.clear();
     outBase.clear();
     outSuffix.clear();
@@ -3934,8 +3933,8 @@ void cmGeneratorTarget::GetFullNameInternal(
 
   // retrieve prefix and suffix
   std::string ll = this->GetLinkerLanguage(config);
-  const char* targetPrefix = this->GetFilePrefixInternal(artifact, ll);
-  const char* targetSuffix = this->GetFileSuffixInternal(artifact, ll);
+  const char* targetPrefix = this->GetFilePrefixInternal(config, artifact, ll);
+  const char* targetSuffix = this->GetFileSuffixInternal(config, artifact, ll);
 
   // The implib option is only allowed for shared libraries, module
   // libraries, and executables.
@@ -6363,6 +6362,16 @@ bool cmGeneratorTarget::HasImportLibrary(std::string const& config) const
           this->GetManagedType(config) != ManagedType::Managed);
 }
 
+bool cmGeneratorTarget::NeedImportLibraryName(std::string const& config) const
+{
+  return this->HasImportLibrary(config) ||
+    // On DLL platforms we always generate the import library name
+    // just in case the sources have export markup.
+    (this->IsDLLPlatform() &&
+     (this->GetType() == cmStateEnums::EXECUTABLE ||
+      this->GetType() == cmStateEnums::MODULE_LIBRARY));
+}
+
 std::string cmGeneratorTarget::GetSupportDirectory() const
 {
   std::string dir = this->LocalGenerator->GetCurrentBinaryDirectory();

Source/cmGeneratorTarget.h

@@ -743,9 +743,13 @@ private:
 
   mutable std::map<std::string, bool> DebugCompatiblePropertiesDone;
 
-  const char* GetFilePrefixInternal(cmStateEnums::ArtifactType artifact,
+  bool NeedImportLibraryName(std::string const& config) const;
+
+  const char* GetFilePrefixInternal(std::string const& config,
+                                    cmStateEnums::ArtifactType artifact,
                                     const std::string& language = "") const;
-  const char* GetFileSuffixInternal(cmStateEnums::ArtifactType artifact,
+  const char* GetFileSuffixInternal(std::string const& config,
+                                    cmStateEnums::ArtifactType artifact,
                                     const std::string& language = "") const;
 
   std::string GetFullNameInternal(const std::string& config,

Source/cmJsonObjects.cxx

@@ -516,9 +516,11 @@ static Json::Value DumpTarget(cmGeneratorTarget* target,
     Json::Value artifacts = Json::arrayValue;
     artifacts.append(
       target->GetFullPath(config, cmStateEnums::RuntimeBinaryArtifact));
-    if (target->IsDLLPlatform()) {
+    if (target->HasImportLibrary(config)) {
       artifacts.append(
         target->GetFullPath(config, cmStateEnums::ImportLibraryArtifact));
+    }
+    if (target->IsDLLPlatform()) {
       const cmGeneratorTarget::OutputInfo* output =
         target->GetOutputInfo(config);
       if (output && !output->PdbDir.empty()) {

Source/cmLinkLineComputer.cxx

@@ -110,8 +110,7 @@ std::string cmLinkLineComputer::ComputeLinkPath(
       if (target->GetType() == cmStateEnums::STATIC_LIBRARY ||
           target->GetType() == cmStateEnums::SHARED_LIBRARY) {
         cmStateEnums::ArtifactType type = cmStateEnums::RuntimeBinaryArtifact;
-        if (target->GetType() == cmStateEnums::SHARED_LIBRARY &&
-            target->IsDLLPlatform()) {
+        if (target->HasImportLibrary(cli.GetConfig())) {
           type = cmStateEnums::ImportLibraryArtifact;
         }