cmSourceFile: Add IsGenerated method

All cmSourceFiles are checked at least once whether they're `GENERATED` or not.
This adds a convenience method `GetIsGenerated` that returns a private
boolean cache variable `IsGenerated`.  `IsGenerated` is updated every time the
`GENERATED` property is written.

1 files changed, 7 insertions, 2 deletions

diff --git a/Source/cmSourceFile.h b/Source/cmSourceFile.h
index 9936e5a..7f37ef3 100644
--- a/Source/cmSourceFile.h
+++ b/Source/cmSourceFile.h
@@ -55,6 +55,10 @@ public:
       command like get_property or get_source_file_property.  */
   const char* GetPropertyForUser(const std::string& prop);
 
+  ///! Checks is the GENERATED property is set and true
+  /// @return Equivalent to GetPropertyAsBool("GENERATED")
+  bool GetIsGenerated() const { return this->IsGenerated; }
+
   /**
    * The full path to the file.  The non-const version of this method
    * may attempt to locate the file on disk and finalize its location.
@@ -106,13 +110,14 @@ public:
 private:
   cmSourceFileLocation Location;
   cmPropertyMap Properties;
-  cmCustomCommand* CustomCommand;
+  cmCustomCommand* CustomCommand = nullptr;
   std::string Extension;
   std::string Language;
   std::string FullPath;
   std::string ObjectLibrary;
   std::vector<std::string> Depends;
-  bool FindFullPathFailed;
+  bool FindFullPathFailed = false;
+  bool IsGenerated = false;
 
   bool FindFullPath(std::string* error);
   bool TryFullPath(const std::string& path, const std::string& ext);