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bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6 enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <iosfwd>
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#include <string>
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#include <utility>
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#include <vector>
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#include <cmext/algorithm>
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#include "cmExportFileGenerator.h"
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#include "cmStateTypes.h"
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class cmExportSet;
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class cmGeneratorTarget;
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class cmGlobalGenerator;
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class cmLocalGenerator;
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/** \class cmExportBuildFileGenerator
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* \brief Generate a file exporting targets from a build tree.
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*
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* cmExportBuildFileGenerator generates a file exporting targets from
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* a build tree. A single file exports information for all
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* configurations built.
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*
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* This is used to implement the EXPORT() command.
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*/
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class cmExportBuildFileGenerator : public cmExportFileGenerator
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{
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public:
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cmExportBuildFileGenerator();
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/** Set the list of targets to export. */
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void SetTargets(std::vector<std::string> const& targets)
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{
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this->Targets = targets;
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}
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void GetTargets(std::vector<std::string>& targets) const;
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void AppendTargets(std::vector<std::string> const& targets)
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{
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cm::append(this->Targets, targets);
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}
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void SetExportSet(cmExportSet*);
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/** Set whether to append generated code to the output file. */
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void SetAppendMode(bool append) { this->AppendMode = append; }
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void Compute(cmLocalGenerator* lg);
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protected:
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// Implement virtual methods from the superclass.
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bool GenerateMainFile(std::ostream& os) override;
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void GenerateImportTargetsConfig(
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std::ostream& os, const std::string& config, std::string const& suffix,
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std::vector<std::string>& missingTargets) override;
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cmStateEnums::TargetType GetExportTargetType(
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cmGeneratorTarget const* target) const;
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void HandleMissingTarget(std::string& link_libs,
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std::vector<std::string>& missingTargets,
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cmGeneratorTarget* depender,
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cmGeneratorTarget* dependee) override;
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void ComplainAboutMissingTarget(cmGeneratorTarget* depender,
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cmGeneratorTarget* dependee,
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std::vector<std::string> const& namespaces);
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/** Fill in properties indicating built file locations. */
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void SetImportLocationProperty(const std::string& config,
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std::string const& suffix,
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cmGeneratorTarget* target,
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ImportPropertyMap& properties);
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std::string InstallNameDir(cmGeneratorTarget* target,
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const std::string& config) override;
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std::pair<std::vector<std::string>, std::string> FindBuildExportInfo(
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cmGlobalGenerator* gg, const std::string& name);
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std::vector<std::string> Targets;
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cmExportSet* ExportSet;
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std::vector<cmGeneratorTarget*> Exports;
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cmLocalGenerator* LG;
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};
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