cmExportCMakeConfigGenerator: Optimize `std::ostream::operator<<` calls

Source/cmExportCMakeConfigGenerator.cxx

@@ -93,8 +93,8 @@ void cmExportCMakeConfigGenerator::GenerateInterfaceProperties(
       cmStrCat(this->Namespace, target->GetExportName());
     os << "set_target_properties(" << targetName << " PROPERTIES\n";
     for (auto const& property : properties) {
-      os << "  " << property.first << " "
-         << cmExportFileGeneratorEscape(property.second) << "\n";
+      os << "  " << property.first << ' '
+         << cmExportFileGeneratorEscape(property.second) << '\n';
     }
     os << ")\n\n";
   }
@@ -164,22 +164,22 @@ void cmExportCMakeConfigGenerator::GeneratePolicyHeaderCode(std::ostream& os)
 {
   // Protect that file against use with older CMake versions.
   /* clang-format off */
-  os << "# Generated by CMake\n\n";
-  os << "if(\"${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}\" LESS 2.8)\n"
-     << "   message(FATAL_ERROR \"CMake >= "
+  os << "# Generated by CMake\n\n"
+        "if(\"${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}\" LESS 2.8)\n"
+        "   message(FATAL_ERROR \"CMake >= "
      << this->RequiredCMakeVersionMajor << '.'
      << this->RequiredCMakeVersionMinor << '.'
      << this->RequiredCMakeVersionPatch << " required\")\n"
-     << "endif()\n"
-     << "if(CMAKE_VERSION VERSION_LESS \""
+        "endif()\n"
+        "if(CMAKE_VERSION VERSION_LESS \""
      << this->RequiredCMakeVersionMajor << '.'
      << this->RequiredCMakeVersionMinor << '.'
      << this->RequiredCMakeVersionPatch << "\")\n"
-     << "   message(FATAL_ERROR \"CMake >= "
+        "   message(FATAL_ERROR \"CMake >= "
      << this->RequiredCMakeVersionMajor << '.'
      << this->RequiredCMakeVersionMinor << '.'
      << this->RequiredCMakeVersionPatch << " required\")\n"
-     << "endif()\n";
+        "endif()\n";
   /* clang-format on */
 
   // Isolate the file policy level.
@@ -191,7 +191,7 @@ void cmExportCMakeConfigGenerator::GeneratePolicyHeaderCode(std::ostream& os)
   // versions.
   /* clang-format off */
   os << "cmake_policy(PUSH)\n"
-     << "cmake_policy(VERSION "
+        "cmake_policy(VERSION "
      << this->RequiredCMakeVersionMajor << '.'
      << this->RequiredCMakeVersionMinor << '.'
      << this->RequiredCMakeVersionPatch << "...3.30)\n";
@@ -207,32 +207,30 @@ void cmExportCMakeConfigGenerator::GenerateImportHeaderCode(
   std::ostream& os, std::string const& config)
 {
   os << "#----------------------------------------------------------------\n"
-     << "# Generated CMake target import file";
+        "# Generated CMake target import file";
   if (!config.empty()) {
     os << " for configuration \"" << config << "\".\n";
   } else {
     os << ".\n";
   }
   os << "#----------------------------------------------------------------\n"
-     << "\n";
+        "\n";
   this->GenerateImportVersionCode(os);
 }
 
 void cmExportCMakeConfigGenerator::GenerateImportFooterCode(std::ostream& os)
 {
   os << "# Commands beyond this point should not need to know the version.\n"
-     << "set(CMAKE_IMPORT_FILE_VERSION)\n";
+        "set(CMAKE_IMPORT_FILE_VERSION)\n";
 }
 
 void cmExportCMakeConfigGenerator::GenerateImportVersionCode(std::ostream& os)
 {
   // Store an import file format version.  This will let us change the
   // format later while still allowing old import files to work.
-  /* clang-format off */
   os << "# Commands may need to know the format version.\n"
-     << "set(CMAKE_IMPORT_FILE_VERSION 1)\n"
-     << "\n";
-  /* clang-format on */
+        "set(CMAKE_IMPORT_FILE_VERSION 1)\n"
+        "\n";
 }
 
 void cmExportCMakeConfigGenerator::GenerateExpectedTargetsCode(
@@ -355,7 +353,7 @@ void cmExportCMakeConfigGenerator::GenerateImportTargetCode(
     os << "set_property(TARGET " << targetName << " PROPERTY SYSTEM 0)\n";
   }
 
-  os << "\n";
+  os << '\n';
 }
 
 void cmExportCMakeConfigGenerator::GenerateImportPropertyCode(
@@ -370,22 +368,24 @@ void cmExportCMakeConfigGenerator::GenerateImportPropertyCode(
 
   // Set the import properties.
   os << "# Import target \"" << targetName << "\" for configuration \""
-     << config << "\"\n";
-  os << "set_property(TARGET " << targetName
-     << " APPEND PROPERTY IMPORTED_CONFIGURATIONS ";
+     << config
+     << "\"\n"
+        "set_property(TARGET "
+     << targetName << " APPEND PROPERTY IMPORTED_CONFIGURATIONS ";
   if (!config.empty()) {
     os << cmSystemTools::UpperCase(config);
   } else {
     os << "NOCONFIG";
   }
-  os << ")\n";
-  os << "set_target_properties(" << targetName << " PROPERTIES\n";
+  os << ")\n"
+        "set_target_properties("
+     << targetName << " PROPERTIES\n";
   std::string importedLocationProp = cmStrCat("IMPORTED_LOCATION", suffix);
   for (auto const& property : properties) {
     if (importedXcFrameworkLocation.empty() ||
         property.first != importedLocationProp) {
-      os << "  " << property.first << " "
-         << cmExportFileGeneratorEscape(property.second) << "\n";
+      os << "  " << property.first << ' '
+         << cmExportFileGeneratorEscape(property.second) << '\n';
     }
   }
   os << "  )\n";
@@ -396,15 +396,15 @@ void cmExportCMakeConfigGenerator::GenerateImportPropertyCode(
          << cmExportFileGeneratorEscape(importedXcFrameworkLocation)
          << ")\n"
             "  set_property(TARGET "
-         << targetName << " PROPERTY " << importedLocationProp << " "
+         << targetName << " PROPERTY " << importedLocationProp << ' '
          << cmExportFileGeneratorEscape(importedXcFrameworkLocation)
          << ")\nelse()\n  set_property(TARGET " << targetName << " PROPERTY "
-         << importedLocationProp << " "
+         << importedLocationProp << ' '
          << cmExportFileGeneratorEscape(importedLocationIt->second)
          << ")\nendif()\n";
     }
   }
-  os << "\n";
+  os << '\n';
 }
 
 void cmExportCMakeConfigGenerator::GenerateFindDependencyCalls(
@@ -467,7 +467,7 @@ void cmExportCMakeConfigGenerator::GenerateFindDependencyCalls(
     if (it.second.Enabled == cmExportSet::PackageDependencyExportEnabled::On) {
       os << "find_dependency(" << it.first;
       for (auto const& arg : it.second.ExtraArguments) {
-        os << " " << cmOutputConverter::EscapeForCMake(arg);
+        os << ' ' << cmOutputConverter::EscapeForCMake(arg);
       }
       os << ")\n";
     }
@@ -479,26 +479,21 @@ void cmExportCMakeConfigGenerator::GenerateMissingTargetsCheckCode(
   std::ostream& os)
 {
   if (this->MissingTargets.empty()) {
-    /* clang-format off */
     os << "# This file does not depend on other imported targets which have\n"
           "# been exported from the same project but in a separate "
-            "export set.\n\n";
-    /* clang-format on */
+          "export set.\n\n";
     return;
   }
-  /* clang-format off */
   os << "# Make sure the targets which have been exported in some other\n"
         "# export set exist.\n"
         "unset(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets)\n"
         "foreach(_target ";
-  /* clang-format on */
   std::set<std::string> emitted;
   for (std::string const& missingTarget : this->MissingTargets) {
     if (emitted.insert(missingTarget).second) {
-      os << "\"" << missingTarget << "\" ";
+      os << '"' << missingTarget << "\" ";
     }
   }
-  /* clang-format off */
   os << ")\n"
         "  if(NOT TARGET \"${_target}\" )\n"
         "    set(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets \""
@@ -513,16 +508,15 @@ void cmExportCMakeConfigGenerator::GenerateMissingTargetsCheckCode(
         "    set( ${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE "
         "\"The following imported targets are "
         "referenced, but are missing: "
-                 "${${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets}\")\n"
+        "${${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets}\")\n"
         "  else()\n"
         "    message(FATAL_ERROR \"The following imported targets are "
         "referenced, but are missing: "
-                "${${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets}\")\n"
+        "${${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets}\")\n"
         "  endif()\n"
         "endif()\n"
         "unset(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets)\n"
         "\n";
-  /* clang-format on */
 }
 
 void cmExportCMakeConfigGenerator::GenerateImportedFileCheckLoop(
@@ -535,7 +529,6 @@ void cmExportCMakeConfigGenerator::GenerateImportedFileCheckLoop(
   // the non-development package, something similar happened to me without
   // on SUSE with a mysql pkg-config file, which claimed everything is fine,
   // but the development package was not installed.).
-  /* clang-format off */
   os << "# Loop over all imported files and verify that they actually exist\n"
         "foreach(_cmake_target IN LISTS _cmake_import_check_targets)\n"
         "  if(CMAKE_VERSION VERSION_LESS \"3.28\"\n"
@@ -565,7 +558,6 @@ void cmExportCMakeConfigGenerator::GenerateImportedFileCheckLoop(
         "unset(_cmake_target)\n"
         "unset(_cmake_import_check_targets)\n"
         "\n";
-  /* clang-format on */
 }
 
 void cmExportCMakeConfigGenerator::GenerateImportedFileChecksCode(
@@ -582,12 +574,12 @@ void cmExportCMakeConfigGenerator::GenerateImportedFileChecksCode(
     os << "set(_cmake_import_check_xcframework_for_" << targetName << ' '
        << cmExportFileGeneratorEscape(importedXcFrameworkLocation) << ")\n";
   }
-  os << "list(APPEND _cmake_import_check_files_for_" << targetName << " ";
+  os << "list(APPEND _cmake_import_check_files_for_" << targetName << ' ';
 
   for (std::string const& li : importedLocations) {
     auto pi = properties.find(li);
     if (pi != properties.end()) {
-      os << cmExportFileGeneratorEscape(pi->second) << " ";
+      os << cmExportFileGeneratorEscape(pi->second) << ' ';
     }
   }
 
@@ -602,7 +594,7 @@ void cmExportCMakeConfigGenerator::GenerateTargetFileSets(
     std::string targetName = cmStrCat(this->Namespace, gte->GetExportName());
     os << "if(NOT CMAKE_VERSION VERSION_LESS \"3.23.0\")\n"
           "  target_sources("
-       << targetName << "\n";
+       << targetName << '\n';
 
     for (auto const& name : interfaceFileSets) {
       auto* fileSet = gte->Target->GetFileSet(name);
@@ -621,7 +613,7 @@ void cmExportCMakeConfigGenerator::GenerateTargetFileSets(
          << cmOutputConverter::EscapeForCMake(fileSet->GetType())
          << "\n      BASE_DIRS "
          << this->GetFileSetDirectories(gte, fileSet, te) << "\n      FILES "
-         << this->GetFileSetFiles(gte, fileSet, te) << "\n";
+         << this->GetFileSetFiles(gte, fileSet, te) << '\n';
     }
 
     os << "  )\nelse()\n  set_property(TARGET " << targetName
@@ -667,8 +659,8 @@ void cmExportCMakeConfigGenerator::GenerateCxxModuleInformation(
 
   // Write the include.
   os << "# Include C++ module properties\n"
-     << "include(\"${CMAKE_CURRENT_LIST_DIR}/" << cxx_module_dirname
-     << "/cxx-modules-" << name << ".cmake\")\n\n";
+        "include(\"${CMAKE_CURRENT_LIST_DIR}/"
+     << cxx_module_dirname << "/cxx-modules-" << name << ".cmake\")\n\n";
 
   // Include all configuration-specific include files.
   cmGeneratedFileStream ap(this->GetCxxModuleFile(name), true);