CMake/Source/cmIfCommand.h

83 lines
2.4 KiB
C++

/*============================================================================
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;
}
~cmIfFunctionBlocker() CM_OVERRIDE {}
bool IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile& mf,
cmExecutionStatus&) CM_OVERRIDE;
bool ShouldRemove(const cmListFileFunction& lff, cmMakefile& mf) CM_OVERRIDE;
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.
*/
cmCommand* Clone() CM_OVERRIDE { return new cmIfCommand; }
/**
* This overrides the default InvokeInitialPass implementation.
* It records the arguments before expansion.
*/
bool InvokeInitialPass(const std::vector<cmListFileArgument>& args,
cmExecutionStatus&) CM_OVERRIDE;
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
bool InitialPass(std::vector<std::string> const&,
cmExecutionStatus&) CM_OVERRIDE
{
return false;
}
/**
* The name of the command as specified in CMakeList.txt.
*/
std::string GetName() const CM_OVERRIDE { return "if"; }
/**
* This determines if the command is invoked when in script mode.
*/
bool IsScriptable() const CM_OVERRIDE { return true; }
// Filter the given variable definition based on policy CMP0054.
static const char* GetDefinitionIfUnquoted(
const cmMakefile* mf, cmExpandedCommandArgument const& argument);
cmTypeMacro(cmIfCommand, cmCommand);
};
#endif