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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
{
CMP0000, // Policy version specification
CMP0001, // Ignore old compatibility variable
CMP0002, // Target names must be unique
CMP0003, // Linking does not include extra -L paths
CMP0004, // Libraries linked may not have leading or trailing whitespace
CMP0005, // Definition value escaping
// Always the last entry. Useful mostly to avoid adding a comma
// the last policy when adding a new one.
CMPCOUNT
};
///! 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);
///! Get docs for policies
void GetDocumentation(std::vector<cmDocumentationEntry>& v);
private:
// might have to make these internal for VS6 not sure yet
std::map<PolicyID,cmPolicy *> Policies;
std::map<std::string,PolicyID> PolicyStringMap;
};
#endif
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