ENH: Added cmTarget::GetLanguages method to centralize computation of the list of languages compiled in a target.

1 files changed, 8 insertions, 1 deletions

diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index d0168a2..4b59e8b 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -61,7 +61,7 @@ public:
 
   ///! Set the cmMakefile that owns this target
   void SetMakefile(cmMakefile *mf);
-  cmMakefile *GetMakefile() { return this->Makefile;};
+  cmMakefile *GetMakefile() const { return this->Makefile;};
 
   /**
    * Get the list of the custom commands for this target
@@ -264,6 +264,13 @@ public:
       If no macro should be defined null is returned.  */
   const char* GetExportMacro();
 
+  // Compute the set of languages compiled by the target.  This is
+  // computed every time it is called because the languages can change
+  // when source file properties are changed and we do not have enough
+  // information to forward these property changes to the targets
+  // until we have per-target object file properties.
+  void GetLanguages(std::set<cmStdString>& languages) const;
+
 private:
   /**
    * A list of direct dependencies. Use in conjunction with DependencyMap.