ee2b446c95
The set(CACHE) and option() commands should always expose the cache value. Previously we failed to expose the value when it was already set if a local variable definition hid it. When set to NEW, this policy tells the commands to always remove the local variable definition to expose the cache value. See issue #9008.
111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
/*=========================================================================
|
|
|
|
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
|
|
CMP0006, // BUNDLE install rules needed for MACOSX_BUNDLE targets
|
|
CMP0007, // list command handling of empty elements
|
|
CMP0008, // Full-path libraries must be a valid library file name
|
|
CMP0009, // GLOB_RECURSE should not follow symlinks by default
|
|
CMP0010, // Bad variable reference syntax is an error
|
|
CMP0011, // Strong policy scope for include and find_package
|
|
CMP0012, // Strong handling of boolean constants
|
|
CMP0013, // Duplicate binary directories not allowed
|
|
CMP0014, // Input directories must have CMakeLists.txt
|
|
CMP0015, // set(CACHE) and option() make CACHE value visible
|
|
|
|
// 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);
|
|
|
|
///! 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);
|
|
|
|
///! return an error string for when a required policy is unspecified
|
|
std::string GetRequiredAlwaysPolicyError(cmPolicies::PolicyID id);
|
|
|
|
///! Get docs for policies
|
|
void GetDocumentation(std::vector<cmDocumentationEntry>& v);
|
|
|
|
/** Represent a set of policy values. */
|
|
typedef std::map<PolicyID, PolicyStatus> PolicyMap;
|
|
|
|
private:
|
|
// might have to make these internal for VS6 not sure yet
|
|
std::map<PolicyID,cmPolicy *> Policies;
|
|
std::map<std::string,PolicyID> PolicyStringMap;
|
|
|
|
void DiagnoseAncientPolicies(std::vector<PolicyID> const& ancient,
|
|
unsigned int majorVer, unsigned int minorVer,
|
|
unsigned int patchVer, cmMakefile* mf);
|
|
};
|
|
|
|
#endif
|