ENH: Add variable watch command

1 files changed, 16 insertions, 8 deletions

diff --git a/Source/cmVariableWatch.h b/Source/cmVariableWatch.h
index 15e8f90c6f..7f97c282c6 100644
--- a/Source/cmVariableWatch.h
+++ b/Source/cmVariableWatch.h
@@ -19,6 +19,8 @@
 
 #include "cmStandardIncludes.h"
 
+class cmMakefile;
+
 /** \class cmVariableWatch
  * \brief Helper class for watching of variable accesses.
  *
@@ -28,7 +30,7 @@ class cmVariableWatch
 {
 public:
   typedef void (*WatchMethod)(const std::string& variable, int access_type,
-                              void* client_data);
+    void* client_data, const char* newValue, const cmMakefile* mf);
 
   cmVariableWatch();
   ~cmVariableWatch();
@@ -43,20 +45,26 @@ public:
   /**
    * This method is called when variable is accessed
    */
-  void VariableAccessed(const std::string& variable, int access_type) const;
+  void VariableAccessed(const std::string& variable, int access_type,
+    const char* newValue, const cmMakefile* mf) const;
 
   /**
    * Different access types.
    */
   enum
     {
-      VARIABLE_READ_ACCESS,
-      UNKNOWN_VARIABLE_READ_ACCESS,
-      ALLOWED_UNKNOWN_VARIABLE_READ_ACCESS,
-      VARIABLE_MODIFIED_ACCESS,
-      VARIABLE_REMOVED_ACCESS,
-      NO_ACCESS
+    VARIABLE_READ_ACCESS = 0,
+    UNKNOWN_VARIABLE_READ_ACCESS,
+    ALLOWED_UNKNOWN_VARIABLE_READ_ACCESS,
+    VARIABLE_MODIFIED_ACCESS,
+    VARIABLE_REMOVED_ACCESS,
+    NO_ACCESS
     };
+
+  /**
+   * Return the access as string
+   */
+  static const char* GetAccessAsString(int access_type);
   
 protected:
   struct Pair