Refactor: reduce cmToCStr usage

Source/cmComputeLinkInformation.cxx

@@ -278,13 +278,11 @@ cmComputeLinkInformation::cmComputeLinkInformation(
   // On platforms without import libraries there may be a special flag
   // to use when creating a plugin (module) that obtains symbols from
   // the program that will load it.
-  this->LoaderFlag = nullptr;
   if (!this->Target->IsDLLPlatform() &&
       this->Target->GetType() == cmStateEnums::MODULE_LIBRARY) {
     std::string loader_flag_var =
       cmStrCat("CMAKE_SHARED_MODULE_LOADER_", this->LinkLanguage, "_FLAG");
-    this->LoaderFlag =
+    this->LoaderFlag = this->Makefile->GetDefinition(loader_flag_var);
-      cmToCStr(this->Makefile->GetDefinition(loader_flag_var));
   }
 
   // Get options needed to link libraries.
@@ -660,8 +658,7 @@ void cmComputeLinkInformation::AddItem(BT<std::string> const& item,
       // This link item is an executable that may provide symbols
       // used by this target.  A special flag is needed on this
       // platform.  Add it now.
-      std::string linkItem;
+      std::string linkItem = this->LoaderFlag;
-      linkItem = this->LoaderFlag;
       cmStateEnums::ArtifactType artifact = tgt->HasImportLibrary(config)
         ? cmStateEnums::ImportLibraryArtifact
         : cmStateEnums::RuntimeBinaryArtifact;

Source/cmComputeLinkInformation.h

@@ -14,6 +14,7 @@
 #include "cmsys/RegularExpression.hxx"
 
 #include "cmListFileCache.h"
+#include "cmProperty.h"
 
 class cmGeneratorTarget;
 class cmGlobalGenerator;
@@ -137,7 +138,7 @@ private:
     SharedDepModeLink    // List file on link line
   };
 
-  const char* LoaderFlag;
+  cmProp LoaderFlag;
   std::string LibLinkFlag;
   std::string LibLinkFileFlag;
   std::string ObjLinkFileFlag;

Source/cmGeneratorTarget.cxx

@@ -4962,11 +4962,11 @@ cmGeneratorTarget::Names cmGeneratorTarget::GetLibraryNames(
     // The library's soname.
     this->ComputeVersionedName(targetNames.SharedObject, prefix,
                                targetNames.Base, suffix, targetNames.Output,
-                               cmToCStr(soversion));
+                               soversion);
 
     // The library's real name on disk.
     this->ComputeVersionedName(targetNames.Real, prefix, targetNames.Base,
-                               suffix, targetNames.Output, cmToCStr(version));
+                               suffix, targetNames.Output, version);
   }
 
   // The import library name.
@@ -4999,10 +4999,10 @@ cmGeneratorTarget::Names cmGeneratorTarget::GetExecutableNames(
 // This versioning is supported only for executables and then only
 // when the platform supports symbolic links.
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  const char* version = nullptr;
+  cmProp version;
 #else
   // Check for executable version properties.
-  const char* version = cmToCStr(this->GetProperty("VERSION"));
+  cmProp version = this->GetProperty("VERSION");
   if (this->GetType() != cmStateEnums::EXECUTABLE ||
       this->Makefile->IsOn("XCODE")) {
     version = nullptr;
@@ -5026,7 +5026,7 @@ cmGeneratorTarget::Names cmGeneratorTarget::GetExecutableNames(
 #endif
   if (version) {
     targetNames.Real += "-";
-    targetNames.Real += version;
+    targetNames.Real += *version;
   }
 #if defined(__CYGWIN__)
   targetNames.Real += suffix;
@@ -6290,17 +6290,14 @@ std::string cmGeneratorTarget::GetFrameworkVersion() const
   return "A";
 }
 
-void cmGeneratorTarget::ComputeVersionedName(std::string& vName,
+void cmGeneratorTarget::ComputeVersionedName(
-                                             std::string const& prefix,
+  std::string& vName, std::string const& prefix, std::string const& base,
-                                             std::string const& base,
+  std::string const& suffix, std::string const& name, cmProp version) const
-                                             std::string const& suffix,
-                                             std::string const& name,
-                                             const char* version) const
 {
   vName = this->Makefile->IsOn("APPLE") ? (prefix + base) : name;
   if (version) {
     vName += ".";
-    vName += version;
+    vName += *version;
   }
   vName += this->Makefile->IsOn("APPLE") ? suffix : std::string();
 }

Source/cmGeneratorTarget.h

@@ -905,8 +905,7 @@ private:
 
   void ComputeVersionedName(std::string& vName, std::string const& prefix,
                             std::string const& base, std::string const& suffix,
-                            std::string const& name,
+                            std::string const& name, cmProp version) const;
-                            const char* version) const;
 
   struct CompatibleInterfacesBase
   {

Source/cmGetDirectoryPropertyCommand.cxx

@@ -13,6 +13,8 @@
 namespace {
 void StoreResult(cmMakefile& makefile, std::string const& variable,
                  const char* prop);
+void StoreResult(cmMakefile& makefile, std::string const& variable,
+                 cmProp prop);
 }
 
 // cmGetDirectoryPropertyCommand
@@ -76,7 +78,6 @@ bool cmGetDirectoryPropertyCommand(std::vector<std::string> const& args,
     return false;
   }
 
-  const char* prop = nullptr;
   if (*i == "DEFINITIONS") {
     switch (status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0059)) {
       case cmPolicies::WARN:
@@ -94,8 +95,7 @@ bool cmGetDirectoryPropertyCommand(std::vector<std::string> const& args,
         break;
     }
   }
-  prop = cmToCStr(dir->GetProperty(*i));
+  StoreResult(status.GetMakefile(), variable, dir->GetProperty(*i));
-  StoreResult(status.GetMakefile(), variable, prop);
   return true;
 }
 
@@ -105,4 +105,9 @@ void StoreResult(cmMakefile& makefile, std::string const& variable,
 {
   makefile.AddDefinition(variable, prop ? prop : "");
 }
+void StoreResult(cmMakefile& makefile, std::string const& variable,
+                 cmProp prop)
+{
+  makefile.AddDefinition(variable, prop);
+}
 }

Source/cmGetPropertyCommand.cxx

@@ -431,9 +431,8 @@ bool HandleVariableMode(cmExecutionStatus& status, const std::string& name,
     return false;
   }
 
-  return StoreResult(
+  return StoreResult(infoType, status.GetMakefile(), variable,
-    infoType, status.GetMakefile(), variable,
+                     status.GetMakefile().GetDefinition(propertyName));
-    cmToCStr(status.GetMakefile().GetDefinition(propertyName)));
 }
 
 bool HandleCacheMode(cmExecutionStatus& status, const std::string& name,

Source/cmGlobalVisualStudio71Generator.cxx

@@ -157,11 +157,11 @@ void cmGlobalVisualStudio71Generator::WriteProjectDepends(
 // executables to the libraries it uses are also done here
 void cmGlobalVisualStudio71Generator::WriteExternalProject(
   std::ostream& fout, const std::string& name, const std::string& location,
-  const char* typeGuid,
+  cmProp typeGuid, const std::set<BT<std::pair<std::string, bool>>>& depends)
-  const std::set<BT<std::pair<std::string, bool>>>& depends)
 {
   fout << "Project(\"{"
-       << (typeGuid ? typeGuid : this->ExternalProjectType(location))
+       << (typeGuid ? typeGuid
+                    : std::string(this->ExternalProjectType(location)))
        << "}\") = \"" << name << "\", \""
        << this->ConvertToSolutionPath(location) << "\", \"{"
        << this->GetGUID(name) << "}\"\n";

Source/cmGlobalVisualStudio71Generator.h

@@ -33,7 +33,7 @@ protected:
     const std::string& platformMapping = "") override;
   void WriteExternalProject(
     std::ostream& fout, const std::string& name, const std::string& path,
-    const char* typeGuid,
+    cmProp typeGuid,
     const std::set<BT<std::pair<std::string, bool>>>& depends) override;
 
   // Folders are not supported by VS 7.1.

Source/cmGlobalVisualStudio7Generator.cxx

@@ -391,10 +391,9 @@ void cmGlobalVisualStudio7Generator::WriteTargetsToSolution(
       std::string project = target->GetName();
       std::string location = *expath;
 
-      this->WriteExternalProject(
+      this->WriteExternalProject(fout, project, location,
-        fout, project, location,
+                                 target->GetProperty("VS_PROJECT_TYPE"),
-        cmToCStr(target->GetProperty("VS_PROJECT_TYPE")),
+                                 target->GetUtilities());
-        target->GetUtilities());
       written = true;
     } else {
       cmProp vcprojName = target->GetProperty("GENERATOR_FILE_NAME");

Source/cmGlobalVisualStudio7Generator.h

@@ -6,6 +6,7 @@
 
 #include "cmGlobalGeneratorFactory.h"
 #include "cmGlobalVisualStudioGenerator.h"
+#include "cmProperty.h"
 
 class cmTarget;
 struct cmIDEFlagTable;
@@ -142,7 +143,7 @@ protected:
 
   virtual void WriteExternalProject(
     std::ostream& fout, const std::string& name, const std::string& path,
-    const char* typeGuid,
+    cmProp typeGuid,
     const std::set<BT<std::pair<std::string, bool>>>& dependencies) = 0;
 
   std::string ConvertToSolutionPath(const std::string& path);

Source/cmIncludeRegularExpressionCommand.cxx

@@ -14,7 +14,7 @@ bool cmIncludeRegularExpressionCommand(std::vector<std::string> const& args,
   }
 
   cmMakefile& mf = status.GetMakefile();
-  mf.SetIncludeRegularExpression(args[0].c_str());
+  mf.SetIncludeRegularExpression(args[0]);
 
   if (args.size() > 1) {
     mf.SetComplainRegularExpression(args[1]);

Source/cmLocalGenerator.cxx

@@ -425,27 +425,25 @@ void cmLocalGenerator::ProcessEvaluationFiles(
 void cmLocalGenerator::GenerateInstallRules()
 {
   // Compute the install prefix.
-  const char* prefix =
+  cmProp installPrefix = this->Makefile->GetDefinition("CMAKE_INSTALL_PREFIX");
-    cmToCStr(this->Makefile->GetDefinition("CMAKE_INSTALL_PREFIX"));
+  std::string prefix = installPrefix;
 
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  std::string prefix_win32;
+  if (!installPrefix) {
-  if (!prefix) {
+    if (!cmSystemTools::GetEnv("SystemDrive", prefix)) {
-    if (!cmSystemTools::GetEnv("SystemDrive", prefix_win32)) {
+      prefix = "C:";
-      prefix_win32 = "C:";
     }
     cmProp project_name = this->Makefile->GetDefinition("PROJECT_NAME");
     if (cmNonempty(project_name)) {
-      prefix_win32 += "/Program Files/";
+      prefix += "/Program Files/";
-      prefix_win32 += *project_name;
+      prefix += *project_name;
     } else {
-      prefix_win32 += "/InstalledCMakeProject";
+      prefix += "/InstalledCMakeProject";
     }
-    prefix = prefix_win32.c_str();
   }
 #elif defined(__HAIKU__)
   char dir[B_PATH_NAME_LENGTH];
-  if (!prefix) {
+  if (!installPrefix) {
     if (find_directory(B_SYSTEM_DIRECTORY, -1, false, dir, sizeof(dir)) ==
         B_OK) {
       prefix = dir;
@@ -454,13 +452,13 @@ void cmLocalGenerator::GenerateInstallRules()
     }
   }
 #else
-  if (!prefix) {
+  if (!installPrefix) {
     prefix = "/usr/local";
   }
 #endif
   if (cmProp stagingPrefix =
         this->Makefile->GetDefinition("CMAKE_STAGING_PREFIX")) {
-    prefix = stagingPrefix->c_str();
+    prefix = *stagingPrefix;
   }
 
   // Compute the set of configurations.
@@ -1869,17 +1867,17 @@ std::string cmLocalGenerator::GetLinkLibsCMP0065(
 }
 
 bool cmLocalGenerator::AllAppleArchSysrootsAreTheSame(
-  const std::vector<std::string>& archs, const char* sysroot)
+  const std::vector<std::string>& archs, cmProp sysroot)
 {
   if (!sysroot) {
     return false;
   }
 
   return std::all_of(archs.begin(), archs.end(),
-                     [this, &sysroot](std::string const& arch) -> bool {
+                     [this, sysroot](std::string const& arch) -> bool {
                        std::string const& archSysroot =
                          this->AppleArchSysroots[arch];
-                       return cmIsOff(archSysroot) || archSysroot == sysroot;
+                       return cmIsOff(archSysroot) || sysroot == archSysroot;
                      });
 }
 
@@ -1912,7 +1910,7 @@ void cmLocalGenerator::AddArchitectureFlags(std::string& flags,
     cmProp sysrootFlag = this->Makefile->GetDefinition(sysrootFlagVar);
     if (cmNonempty(sysrootFlag)) {
       if (!this->AppleArchSysroots.empty() &&
-          !this->AllAppleArchSysrootsAreTheSame(archs, cmToCStr(sysroot))) {
+          !this->AllAppleArchSysrootsAreTheSame(archs, sysroot)) {
         for (std::string const& arch : archs) {
           std::string const& archSysroot = this->AppleArchSysroots[arch];
           if (cmIsOff(archSysroot)) {

Source/cmLocalGenerator.h

@@ -651,7 +651,7 @@ private:
 
   void ComputeObjectMaxPath();
   bool AllAppleArchSysrootsAreTheSame(const std::vector<std::string>& archs,
-                                      const char* sysroot);
+                                      cmProp sysroot);
 
   void CopyPchCompilePdb(const std::string& config, cmGeneratorTarget* target,
                          const std::string& ReuseFrom,

Source/cmMakefile.h

@@ -399,13 +399,13 @@ public:
    * Set a regular expression that include files must match
    * in order to be considered as part of the depend information.
    */
-  void SetIncludeRegularExpression(const char* regex)
+  void SetIncludeRegularExpression(const std::string& regex)
   {
-    this->SetProperty("INCLUDE_REGULAR_EXPRESSION", regex);
+    this->SetProperty("INCLUDE_REGULAR_EXPRESSION", regex.c_str());
   }
-  const char* GetIncludeRegularExpression() const
+  const std::string& GetIncludeRegularExpression() const
   {
-    return cmToCStr(this->GetProperty("INCLUDE_REGULAR_EXPRESSION"));
+    return this->GetProperty("INCLUDE_REGULAR_EXPRESSION");
   }
 
   /**

Source/cmMakefileTargetGenerator.cxx

@@ -293,8 +293,7 @@ void cmMakefileTargetGenerator::WriteTargetBuildRules()
                                             this->GetConfigName());
   for (cmSourceFile const* sf : externalObjects) {
     auto const& objectFileName = sf->GetFullPath();
-    if (!cmSystemTools::StringEndsWith(objectFileName,
+    if (!cmHasSuffix(objectFileName, pchExtension)) {
-                                       cmToCStr(pchExtension))) {
       this->ExternalObjects.push_back(objectFileName);
     }
   }
@@ -1732,7 +1731,7 @@ void cmMakefileTargetGenerator::WriteObjectsVariable(
   cmProp pchExtension = this->Makefile->GetDefinition("CMAKE_PCH_EXTENSION");
 
   for (std::string const& obj : this->Objects) {
-    if (cmSystemTools::StringEndsWith(obj, cmToCStr(pchExtension))) {
+    if (cmHasSuffix(obj, pchExtension)) {
       continue;
     }
     *this->BuildFileStream << " " << lineContinue;
@@ -1822,7 +1821,7 @@ void cmMakefileTargetGenerator::WriteObjectsStrings(
     objStrings, this->LocalGenerator,
     this->LocalGenerator->GetStateSnapshot().GetDirectory(), limit);
   for (std::string const& obj : this->Objects) {
-    if (cmSystemTools::StringEndsWith(obj, cmToCStr(pchExtension))) {
+    if (cmHasSuffix(obj, pchExtension)) {
       continue;
     }
     helper.Feed(obj);

Source/cmNinjaTargetGenerator.cxx

@@ -994,8 +994,7 @@ void cmNinjaTargetGenerator::WriteObjectBuildStatements(
     for (cmSourceFile const* sf : externalObjects) {
       auto objectFileName = this->GetGlobalGenerator()->ExpandCFGIntDir(
         this->ConvertToNinjaPath(sf->GetFullPath()), config);
-      if (!cmSystemTools::StringEndsWith(objectFileName,
+      if (!cmHasSuffix(objectFileName, pchExtension)) {
-                                         cmToCStr(pchExtension))) {
         this->Configs[config].Objects.push_back(objectFileName);
       }
     }
@@ -1260,8 +1259,7 @@ void cmNinjaTargetGenerator::WriteObjectBuildStatement(
   if (firstForConfig) {
     cmProp pchExtension =
       this->GetMakefile()->GetDefinition("CMAKE_PCH_EXTENSION");
-    if (!cmSystemTools::StringEndsWith(objectFileName,
+    if (!cmHasSuffix(objectFileName, pchExtension)) {
-                                       cmToCStr(pchExtension))) {
       // Add this object to the list of object files.
       this->Configs[config].Objects.push_back(objectFileName);
     }

Source/cmVisualStudio10TargetGenerator.cxx

@@ -508,15 +508,15 @@ void cmVisualStudio10TargetGenerator::Generate()
             p = this->GeneratorTarget->GetProperty(
               "DOTNET_TARGET_FRAMEWORK_VERSION");
           }
-          const char* targetFrameworkVersion = cmToCStr(p);
+          std::string targetFrameworkVersion = p;
-          if (!targetFrameworkVersion && this->ProjectType == csproj &&
+          if (targetFrameworkVersion.empty() && this->ProjectType == csproj &&
               this->GlobalGenerator->TargetsWindowsCE() &&
               this->GlobalGenerator->GetVersion() ==
                 cmGlobalVisualStudioGenerator::VS12) {
             // VS12 .NETCF default to .NET framework 3.9
             targetFrameworkVersion = "v3.9";
           }
-          if (targetFrameworkVersion) {
+          if (!targetFrameworkVersion.empty()) {
             e1.Element("TargetFrameworkVersion", targetFrameworkVersion);
           }
         }