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The idea is to write to a temp file which contains generator expressions, and at generate time, evaluate the generator expressions, and write the result to a file. Because executables on Windows are limited in the length of command line it is possible to use, it is common to write command line arguments to a file instead and specify the file as a source of arguments. This new FILE(GENERATE) subcommand allows the use of generator expressions to create such files so that they can be used with add_custom_command for example.
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2013 Stephen Kelly <steveire@gmail.com>
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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 cmGeneratorExpressionEvaluationFile_h
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#define cmGeneratorExpressionEvaluationFile_h
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#include "cmStandardIncludes.h"
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#include <cmsys/auto_ptr.hxx>
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#include "cmGeneratorExpression.h"
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//----------------------------------------------------------------------------
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class cmGeneratorExpressionEvaluationFile
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{
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public:
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cmGeneratorExpressionEvaluationFile(const std::string &input,
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cmsys::auto_ptr<cmCompiledGeneratorExpression> outputFileExpr,
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cmMakefile *makefile,
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cmsys::auto_ptr<cmCompiledGeneratorExpression> condition,
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bool inputIsContent);
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void Generate();
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std::vector<std::string> GetFiles() const { return this->Files; }
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private:
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void Generate(const char *config,
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cmCompiledGeneratorExpression* inputExpression,
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std::map<std::string, std::string> &outputFiles);
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private:
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const std::string Input;
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const cmsys::auto_ptr<cmCompiledGeneratorExpression> OutputFileExpr;
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cmMakefile *Makefile;
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const cmsys::auto_ptr<cmCompiledGeneratorExpression> Condition;
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std::vector<std::string> Files;
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const bool InputIsContent;
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};
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#endif
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