Autogen: Add cmQtAutogenGlobalInitializer::Keywords class

The new `cmQtAutogenGlobalInitializer::Keywords` class instance is bound to
the lifetime of the `cmQtAutogenGlobalInitializer` instance.  Global static
const strings would be allocated at program start and deallocated at program
end.  Keeping keyword strings alive only in the context where they're
needed helps to reduce the memory footprint.

2 files changed, 22 insertions, 0 deletions

diff --git a/Source/cmQtAutoGenGlobalInitializer.cxx b/Source/cmQtAutoGenGlobalInitializer.cxx
index 7bd0e52..994cfc8 100644
--- a/Source/cmQtAutoGenGlobalInitializer.cxx
+++ b/Source/cmQtAutoGenGlobalInitializer.cxx
@@ -20,6 +20,13 @@
 #include <memory>
 #include <utility>
 
+cmQtAutoGenGlobalInitializer::Keywords::Keywords()
+  : AUTOMOC("AUTOMOC")
+  , AUTOUIC("AUTOUIC")
+  , AUTORCC("AUTORCC")
+{
+}
+
 cmQtAutoGenGlobalInitializer::cmQtAutoGenGlobalInitializer(
   std::vector<cmLocalGenerator*> const& localGenerators)
 {
diff --git a/Source/cmQtAutoGenGlobalInitializer.h b/Source/cmQtAutoGenGlobalInitializer.h
index 74184a0..6cddf16 100644
--- a/Source/cmQtAutoGenGlobalInitializer.h
+++ b/Source/cmQtAutoGenGlobalInitializer.h
@@ -18,10 +18,24 @@ class cmQtAutoGenInitializer;
 class cmQtAutoGenGlobalInitializer
 {
 public:
+  /// @brief Collection of QtAutogen related keywords
+  class Keywords
+  {
+  public:
+    Keywords();
+
+    std::string AUTOMOC;
+    std::string AUTOUIC;
+    std::string AUTORCC;
+  };
+
+public:
   cmQtAutoGenGlobalInitializer(
     std::vector<cmLocalGenerator*> const& localGenerators);
   ~cmQtAutoGenGlobalInitializer();
 
+  Keywords const* kw() const { return Keywords_.get(); };
+
   bool generate();
 
 private:
@@ -48,6 +62,7 @@ private:
   std::map<cmLocalGenerator*, std::string> GlobalAutoGenTargets_;
   std::map<cmLocalGenerator*, std::string> GlobalAutoRccTargets_;
   std::unordered_map<std::string, std::string> ExecutableTestOutputs_;
+  std::unique_ptr<Keywords> Keywords_;
 };
 
 #endif