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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
#include <string>
#include <cm/optional>
#include "cmValue.h"
class cmMakefile;
class cmGeneratorTarget;
class cmStandardLevel;
class cmTarget;
class cmStandardLevelResolver
{
public:
explicit cmStandardLevelResolver(cmMakefile* makefile)
: Makefile(makefile)
{
}
std::string GetCompileOptionDef(cmGeneratorTarget const* target,
std::string const& lang,
std::string const& config) const;
std::string GetEffectiveStandard(cmGeneratorTarget const* target,
std::string const& lang,
std::string const& config) const;
bool AddRequiredTargetFeature(cmTarget* target, const std::string& feature,
std::string* error = nullptr) const;
bool CompileFeatureKnown(const std::string& targetName,
const std::string& feature, std::string& lang,
std::string* error) const;
cm::optional<cmStandardLevel> CompileFeatureStandardLevel(
std::string const& lang, std::string const& feature) const;
cm::optional<cmStandardLevel> LanguageStandardLevel(
std::string const& lang, std::string const& standardStr) const;
cmValue CompileFeaturesAvailable(const std::string& lang,
std::string* error) const;
bool GetNewRequiredStandard(const std::string& targetName,
const std::string& feature,
cmValue currentLangStandardValue,
cm::optional<cmStandardLevel>& featureLevel,
std::string& newRequiredStandard,
std::string* error = nullptr) const;
bool HaveStandardAvailable(cmGeneratorTarget const* target,
std::string const& lang,
std::string const& config,
const std::string& feature) const;
bool IsLaterStandard(std::string const& lang, std::string const& lhs,
std::string const& rhs) const;
private:
bool CheckCompileFeaturesAvailable(const std::string& targetName,
const std::string& feature,
std::string& lang,
std::string* error) const;
cmMakefile* Makefile;
};
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