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/*============================================================================
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 cmIfCommand_h
#define cmIfCommand_h
#include "cmCommand.h"
#include "cmFunctionBlocker.h"
class cmIfFunctionBlocker : public cmFunctionBlocker
{
public:
cmIfFunctionBlocker() {
this->HasRun = false; this->ScopeDepth = 0; }
virtual ~cmIfFunctionBlocker() {}
virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
cmMakefile &mf,
cmExecutionStatus &);
virtual bool ShouldRemove(const cmListFileFunction& lff,
cmMakefile &mf);
std::vector<cmListFileArgument> Args;
std::vector<cmListFileFunction> Functions;
bool IsBlocking;
bool HasRun;
unsigned int ScopeDepth;
};
/// Starts an if block
class cmIfCommand : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmIfCommand;
}
/**
* This overrides the default InvokeInitialPass implementation.
* It records the arguments before expansion.
*/
virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args,
cmExecutionStatus &);
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const&,
cmExecutionStatus &) { return false;};
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual std::string GetName() const { return "if";}
/**
* This determines if the command is invoked when in script mode.
*/
virtual bool IsScriptable() const { return true; }
// this is a shared function for both If and Else to determine if the
// arguments were valid, and if so, was the response true. If there is
// an error, the errorString will be set.
static bool IsTrue(const std::vector<std::string> &args,
std::string &errorString, cmMakefile *mf,
cmake::MessageType &status);
// Get a definition from the makefile. If it doesn't exist,
// return the original string.
static const char* GetVariableOrString(const std::string& str,
const cmMakefile* mf);
cmTypeMacro(cmIfCommand, cmCommand);
};
#endif
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