ENH: just getting somethng checked in, still work to do

1 files changed, 85 insertions, 0 deletions

diff --git a/Source/cmPolicies.h b/Source/cmPolicies.h
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+++ b/Source/cmPolicies.h
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+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmPolicies_h
+#define cmPolicies_h
+
+#include "cmCustomCommand.h"
+
+class cmake;
+class cmMakefile;
+class cmPolicy;
+
+/** \class cmPolicies
+ * \brief Handles changes in CMake behavior and policies
+ *
+ * See the cmake wiki section on policies for an overview of this class's purpose
+ */
+class cmPolicies
+{
+public:
+  cmPolicies();
+  ~cmPolicies();
+
+  enum PolicyStatus { OLD, WARN, NEW, REQUIRED_IF_USED, REQUIRED_ALWAYS };
+  static const char* PolicyStatusNames[];
+
+  enum PolicyID {CMP_0000, CMP_POLICY_SPECIFICATION = CMP_0000,
+                 CMP_0001, CMP_TARGET_NAMES_WITH_SLASHES = CMP_0001,
+                 CMP_0002, CMP_REQUIRE_UNIQUE_TARGET_NAMES = CMP_0002};
+
+
+  ///! convert a string policy ID into a number
+  bool GetPolicyID(const char *id, /* out */ cmPolicies::PolicyID &pid);
+  std::string GetPolicyIDString(cmPolicies::PolicyID pid);
+  
+  ///! Get the default status for a policy
+  cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id);
+  
+  ///! Define a Policy for CMake
+  void DefinePolicy(cmPolicies::PolicyID id,
+                    const char *stringID,
+                    const char *shortDescription,
+                    const char *longDescription,
+                    unsigned int majorVersionIntroduced,
+                    unsigned int minorVersionIntroduced,
+                    unsigned int patchVersionIntroduced,
+                    cmPolicies::PolicyStatus status);
+
+  ///! Set a policy level for this listfile
+  bool ApplyPolicyVersion(cmMakefile *mf, const char *version);
+
+  ///! test to see if setting a policy to a specific value is valid
+  bool IsValidPolicyStatus(cmPolicies::PolicyID id, 
+                           cmPolicies::PolicyStatus status);
+
+  ///! test to see if setting a policy to a specific value is valid, when used
+  bool IsValidUsedPolicyStatus(cmPolicies::PolicyID id, 
+                               cmPolicies::PolicyStatus status);
+
+  ///! return a warning string for a given policy
+  std::string GetPolicyWarning(cmPolicies::PolicyID id);
+  
+  ///! return an error string for when a required policy is unspecified
+  std::string GetRequiredPolicyError(cmPolicies::PolicyID id);
+
+  private:
+  std::map<cmPolicies::PolicyID,cmPolicy *> Policies;
+  std::map<std::string,cmPolicies::PolicyID> PolicyStringMap;
+  
+};
+
+#endif