Use containers of labeled search paths instead of individual members

Manage classes of search paths in labeled containers.  This removes the
need to have a seperate member variable for each type of search path, but
also allows path types to be grouped togethor in various different ways
and manipulated as subsets of the full set of search paths.

1 files changed, 44 insertions, 0 deletions

diff --git a/Source/cmPathLabel.h b/Source/cmPathLabel.h
new file mode 100644
index 0000000000..02d526123f
--- /dev/null
+++ b/Source/cmPathLabel.h
@@ -0,0 +1,44 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+#ifndef cmPathLabel_h
+#define cmPathLabel_h
+
+#include "cmStandardIncludes.h"
+
+/** \class cmPathLabel
+ * \brief Helper class for text based labels
+ *
+ * cmPathLabel is extended in different classes to act as an inheritable
+ * enum.  Comparisons are done on a precomputed Jenkins hash of the string
+ * label for indexing and searchig.
+ */
+class cmPathLabel
+{
+public:
+  cmPathLabel(const std::string& label);
+
+  // The comparison operators are only for quick sorting and searching and
+  // in no way imply any lexicographical order of the label
+  bool operator < (const cmPathLabel& l) const;
+  bool operator == (const cmPathLabel& l) const;
+
+  const std::string& GetLabel() const { return this->Label; }
+  const unsigned int& GetHash() const { return this->Hash; }
+
+protected:
+  cmPathLabel();
+
+  std::string Label;
+  unsigned int Hash;
+};
+
+#endif