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The evaluation files must be known before cmTargetTraceDependencies attempts to find them, but we must actually generate the files after cmTargetTraceDependencies, as that can add to target SOURCES. The limitation is that the generated output name must not depend on the SOURCES of a target if the generated file is used by that target. Mark the output files as GENERATED so that trace dependencies does not expect them to already exist in the filesystem. Move the invokation of ForceLinkerLanguage in the Generate logic to after the generated file names are known. ForceLinkerLanguage tries to determine the sources of a target (in order to determine an already-known language) and otherwise fails to get information about the generated file. Test that the output of file(GENERATE) can be used as a target source file and that accessing the target SOURCES in the name of the output file is an error. Accessing the TARGET_OBJECTS would be a similar error if it was legal to use that generator expression in this context. That is not currently possible and is a different error condition, so test the current error output as a reminder to change the expected output if that becomes possible in the future. Test that generated rule files resulting from cmTargetTraceDependencies appear in the SOURCES generated in the output file.
51 lines
1.7 KiB
C++
51 lines
1.7 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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void CreateOutputFile(std::string const& config);
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private:
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void Generate(const std::string& config,
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cmCompiledGeneratorExpression* inputExpression,
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std::map<std::string, std::string> &outputFiles, mode_t perm);
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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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