90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmIfCommand_h
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#define cmIfCommand_h
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#include "cmCommand.h"
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#include "cmFunctionBlocker.h"
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class cmIfFunctionBlocker : public cmFunctionBlocker
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{
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public:
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cmIfFunctionBlocker() {
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this->HasRun = false; this->ScopeDepth = 0; }
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virtual ~cmIfFunctionBlocker() {}
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virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
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cmMakefile &mf,
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cmExecutionStatus &);
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virtual bool ShouldRemove(const cmListFileFunction& lff,
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cmMakefile &mf);
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std::vector<cmListFileArgument> Args;
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std::vector<cmListFileFunction> Functions;
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bool IsBlocking;
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bool HasRun;
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unsigned int ScopeDepth;
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};
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/// Starts an if block
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class cmIfCommand : public cmCommand
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{
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public:
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/**
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* This is a virtual constructor for the command.
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*/
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virtual cmCommand* Clone()
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{
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return new cmIfCommand;
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}
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/**
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* This overrides the default InvokeInitialPass implementation.
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* It records the arguments before expansion.
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*/
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virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args,
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cmExecutionStatus &);
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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virtual bool InitialPass(std::vector<std::string> const&,
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cmExecutionStatus &) { return false;};
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/**
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* The name of the command as specified in CMakeList.txt.
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*/
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virtual std::string GetName() const { return "if";}
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/**
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* This determines if the command is invoked when in script mode.
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*/
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virtual bool IsScriptable() const { return true; }
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// this is a shared function for both If and Else to determine if the
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// arguments were valid, and if so, was the response true. If there is
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// an error, the errorString will be set.
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static bool IsTrue(const std::vector<std::string> &args,
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std::string &errorString, cmMakefile *mf,
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cmake::MessageType &status);
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// Get a definition from the makefile. If it doesn't exist,
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// return the original string.
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static const char* GetVariableOrString(const std::string& str,
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const cmMakefile* mf);
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cmTypeMacro(cmIfCommand, cmCommand);
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};
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#endif
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